CA2349021C - System, method and biosensor apparatus for data communications with a personal data assistant - Google Patents
System, method and biosensor apparatus for data communications with a personal data assistant Download PDFInfo
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- CA2349021C CA2349021C CA2349021A CA2349021A CA2349021C CA 2349021 C CA2349021 C CA 2349021C CA 2349021 A CA2349021 A CA 2349021A CA 2349021 A CA2349021 A CA 2349021A CA 2349021 C CA2349021 C CA 2349021C
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
- G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
- G16H40/63—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for local operation
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Z—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS, NOT OTHERWISE PROVIDED FOR
- G16Z99/00—Subject matter not provided for in other main groups of this subclass
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Abstract
A system, method and biosensor apparatus are provided for data communications with a personal data assistant. The bio-sensor apparatus includes a sensor for receiving a user sample to be measured and a microcontroller for performing a predefined test sequence for measuring a predefined parameter value. An interface logic block is coupled to the microcontroller for communicating the predefined parameter data value to the personal data assistant. The personal data assistant provides an operator interface, data management and analysis of biosensor results.
Description
SYSTEM, METHOD AND BIOSENSOR APPARATUS FOR DATA
COMMUNICATIONS WITH A PERSONAL DATA ASSISTANT
Field of the Invention The present invention generally relates to a bio-sensor, and, more particularly, to a new and improved system, method and bi_osensor apparatus for data communi-cations with a personal data assistant.
Description of the Prior Art The quantitative determination of analytes in body fluids is of great importance in the diagnoses and main-tenance of certain physiological abnormalities. For ex-ample lactate, cholesterol and bilirubin should be moni-tored in certain individuals. In particular, the deter-mination of glucose in body fluids is of great impor-tance to diabetic individuals who must frequently check the level of glucose in their body fluids as a means of regulating the glucose intake in their diets, insulin intake and events. While the remainder of the disclo-sure herein will be directed towards the determination of glucose, it is tc> be understood that the procedure and apparatus of this invention can be used with other diagnostic systems.
Diaqnostic systems, such as, blood glucose systems include a biosensor. apparatus used to calculate the ac-tual glucose value based on a measured output, such as, current or color, and the known reactivity of the rea-gent sensing element used to perform the test. The test results typically a.re displayed to the user and stored in a memory in the :biosensor apparatus.
One known personal data assistant is a PalmTM hand-held personal data assistant. It is desirable to pro-
COMMUNICATIONS WITH A PERSONAL DATA ASSISTANT
Field of the Invention The present invention generally relates to a bio-sensor, and, more particularly, to a new and improved system, method and bi_osensor apparatus for data communi-cations with a personal data assistant.
Description of the Prior Art The quantitative determination of analytes in body fluids is of great importance in the diagnoses and main-tenance of certain physiological abnormalities. For ex-ample lactate, cholesterol and bilirubin should be moni-tored in certain individuals. In particular, the deter-mination of glucose in body fluids is of great impor-tance to diabetic individuals who must frequently check the level of glucose in their body fluids as a means of regulating the glucose intake in their diets, insulin intake and events. While the remainder of the disclo-sure herein will be directed towards the determination of glucose, it is tc> be understood that the procedure and apparatus of this invention can be used with other diagnostic systems.
Diaqnostic systems, such as, blood glucose systems include a biosensor. apparatus used to calculate the ac-tual glucose value based on a measured output, such as, current or color, and the known reactivity of the rea-gent sensing element used to perform the test. The test results typically a.re displayed to the user and stored in a memory in the :biosensor apparatus.
One known personal data assistant is a PalmTM hand-held personal data assistant. It is desirable to pro-
-2-vide a mechanism to enable the use a personal data as-sistant with a bioSensor apparatus to eliminate the need for a user to manually enter data or go through a hook-up process to download measurements from a separate blood glucose monitor. A need exists for an efficient and effective mechanism to enable a biosensor to commu-nicate with a personal data assistant. It is desirable to provide an improved method for storing and displaying information for use by a diabetic patient and also al-lows the user to augment stored glucose results by en-tering and storing insulin amounts and time as well as other relevant markers, for example, logbook capability.
Summary of the Invention An important object of the present invention is to provide a new and improved system, method and biosensor apparatus for data communications with a personal data assistant. Other, important objects of the present in-vention are to provide such system, method and apparatus that eliminates or minimizes the need for user interac-tion; and to provide such method and apparatus substan-tially without negative effect; and that overcome some disadvantages of prior art arrangements.
In brief, a system, method and biosensor apparatus are provided for communications with a personal data as-sistant. The biosensor apparatus includes a sensor for receiving a user sample to be measured and a microcon-troller for performing a predefined test sequence for measuring a predefined parameter value. An interface logic block is coupled to the microcontroller for commu-nicating with the personal data assistant. The personal data assistant includes an interface logic block for communicating with the biosensor apparatus. The per-sonal data assistant provides an operator interface, data management and analysis of biosensor results.
Summary of the Invention An important object of the present invention is to provide a new and improved system, method and biosensor apparatus for data communications with a personal data assistant. Other, important objects of the present in-vention are to provide such system, method and apparatus that eliminates or minimizes the need for user interac-tion; and to provide such method and apparatus substan-tially without negative effect; and that overcome some disadvantages of prior art arrangements.
In brief, a system, method and biosensor apparatus are provided for communications with a personal data as-sistant. The biosensor apparatus includes a sensor for receiving a user sample to be measured and a microcon-troller for performing a predefined test sequence for measuring a predefined parameter value. An interface logic block is coupled to the microcontroller for commu-nicating with the personal data assistant. The personal data assistant includes an interface logic block for communicating with the biosensor apparatus. The per-sonal data assistant provides an operator interface, data management and analysis of biosensor results.
-3-Brief Description of the Drawings The present invention together with the above and other objects and advantages may best be understood from the following detailed description of the preferred em-bodiments of the invention illustrated in the drawings, wherein:
FIG. 1 is a block diagram representation of a sys-tem including a biosensor apparatus and a personal data assistant in accordance with the present invention;
FIG. 2 is a block diagram representation of a bio-sensor apparatus in. accordance with the present inven-tion of the system of FIG. 1;
FIG. 3 is a block diagram representation of a per-sonal data assistant used with the biosensor apparatus of FIGS. 1 and 2 in accordance with the present inven-tion;
FIG. 4 is a flow chart illustrating exemplary user interface operations of the personal data assistant of FIG. 3 in the system of FIG. 1 in accordance with the present invention;
FIG. 5 is a flow chart illustrating exemplary se-quential timing steps performed by the biosensor appara-tus of FIGS. 1 and 2 in accordance with the present in-vention;
FIGS. 6-13 are flow charts illustrating exemplary sequential steps performed by the personal data assis-tant of FIGS. 1 anci 3 in accordance with the present in-vention; and
FIG. 1 is a block diagram representation of a sys-tem including a biosensor apparatus and a personal data assistant in accordance with the present invention;
FIG. 2 is a block diagram representation of a bio-sensor apparatus in. accordance with the present inven-tion of the system of FIG. 1;
FIG. 3 is a block diagram representation of a per-sonal data assistant used with the biosensor apparatus of FIGS. 1 and 2 in accordance with the present inven-tion;
FIG. 4 is a flow chart illustrating exemplary user interface operations of the personal data assistant of FIG. 3 in the system of FIG. 1 in accordance with the present invention;
FIG. 5 is a flow chart illustrating exemplary se-quential timing steps performed by the biosensor appara-tus of FIGS. 1 and 2 in accordance with the present in-vention;
FIGS. 6-13 are flow charts illustrating exemplary sequential steps performed by the personal data assis-tant of FIGS. 1 anci 3 in accordance with the present in-vention; and
-4-FIGS. 14-16 are flow charts illustrating exemplary sequential steps performed by the biosensor apparatus of FIGS. 1 and 2 in accordance with the present invention.
Detailed Description of the Preferred Embodiments Having refe2'ence now to the drawings, in FIG. 1 there is illustrated a system designated as a whole by the reference char.acter 10 and arranged in accordance with principles of the present invention. System 10 in-cludes a. biosensor apparatus 100 used together with a personal data assistant 200. Personal data assistant 200 also is adapted for bi-directional communications with a host computer :300.
In FIG. 2 there is illustrated the biosensor appa-ratus designated as a whole by the reference character 100 and arranged in accordance with principles of the present invention. Biosensor apparatus 100 includes a data acquisition circuit generally designated by the reference charact.e:r 102 and a microcontroller section generally designated by the reference character 104.
Data acquisition circuit 102 includes a sensor 106 for receiving a blood sample from a user for performing a blood glucose test. A sensor drive input and a current input are applied 'to the sensor 106. One of a pair of electrostatic discharge suppressors 108 and 109 is cou-pled respectively tc> the sensor drive input and the cur-rent input. A p.rogrammable voltage source 110 is cou-pled to an analog switching device 112. A voltage ref-erence VREF and an analog ground or common ACOM are ap-plied to the programmable voltage source 110. Analog switchinq device 11..2 is also coupled to a reference re-sistor 114 and a thermistor 116. Both the reference re-sistor 1:L4 and the thermistor 116 are also connected to a transirnpedance amplifier 118. Analog switching device 112 couples a drive voltage or open to the sensor 106 at
Detailed Description of the Preferred Embodiments Having refe2'ence now to the drawings, in FIG. 1 there is illustrated a system designated as a whole by the reference char.acter 10 and arranged in accordance with principles of the present invention. System 10 in-cludes a. biosensor apparatus 100 used together with a personal data assistant 200. Personal data assistant 200 also is adapted for bi-directional communications with a host computer :300.
In FIG. 2 there is illustrated the biosensor appa-ratus designated as a whole by the reference character 100 and arranged in accordance with principles of the present invention. Biosensor apparatus 100 includes a data acquisition circuit generally designated by the reference charact.e:r 102 and a microcontroller section generally designated by the reference character 104.
Data acquisition circuit 102 includes a sensor 106 for receiving a blood sample from a user for performing a blood glucose test. A sensor drive input and a current input are applied 'to the sensor 106. One of a pair of electrostatic discharge suppressors 108 and 109 is cou-pled respectively tc> the sensor drive input and the cur-rent input. A p.rogrammable voltage source 110 is cou-pled to an analog switching device 112. A voltage ref-erence VREF and an analog ground or common ACOM are ap-plied to the programmable voltage source 110. Analog switchinq device 11..2 is also coupled to a reference re-sistor 114 and a thermistor 116. Both the reference re-sistor 1:L4 and the thermistor 116 are also connected to a transirnpedance amplifier 118. Analog switching device 112 couples a drive voltage or open to the sensor 106 at
-5-the sensor drive i:nput. The transimpedance amplifier 118 coupled to the sensor current input applies an input to an analog-to-digital converter (ADC) with threshold detectiori 120. A voltage reference VREF and an analog ground or commori. ACOM are applied to the ADC with thresholci detection 120. A gain resistor 122 and a par-allel, series connected shunt 124 and current shunt 126 are connected across the transimpedance amplifier 118.
Data acquisition circuit 102 includes a voltage refer-ence and distribut.ion block 128 to supply reference voltages to the rest of the system. The sensor detect input corinects to the microcontroller 130.
Microcontroller section 104 includes a microcon-troller 130 receiving a voltage supply VCC input from the voltage reference and distribution block 128. A me-ter and communications program 131 is used with the mi-crocontrc>ller 130 in accordance with features of the preferred embodiment. Microcontroller is coupled to the programmable voltage source 110 and the ADC with thresh-old detection 120. Microcontroller section 104 includes an interface logic block 132 coupled between the micro-controller 130 and a. module interface connector 134 ena-bling communicatioris with the personal data assistant 200 of F'IG. 2. lKi.crocontroller 130 contains suitable programming to perform the methods of the invention as illustrated in FIGS. 5 and 14-16.
Referring to FIG. 3, the personal data assistant (PDA) 200 includes a processor section 202 and a user interface 204. The processor section 202 includes a processor 206 together with a biosensor program 207 in accordance with f_-eatures of the preferred embodiment.
Processor section 202 contains suitable programming to perform the methods of the invention as illustrated in FIGS. 4 and 6-13. 'Phe processor section 202 includes a PDA interface connector 208 eiiabling communications with
Data acquisition circuit 102 includes a voltage refer-ence and distribut.ion block 128 to supply reference voltages to the rest of the system. The sensor detect input corinects to the microcontroller 130.
Microcontroller section 104 includes a microcon-troller 130 receiving a voltage supply VCC input from the voltage reference and distribution block 128. A me-ter and communications program 131 is used with the mi-crocontrc>ller 130 in accordance with features of the preferred embodiment. Microcontroller is coupled to the programmable voltage source 110 and the ADC with thresh-old detection 120. Microcontroller section 104 includes an interface logic block 132 coupled between the micro-controller 130 and a. module interface connector 134 ena-bling communicatioris with the personal data assistant 200 of F'IG. 2. lKi.crocontroller 130 contains suitable programming to perform the methods of the invention as illustrated in FIGS. 5 and 14-16.
Referring to FIG. 3, the personal data assistant (PDA) 200 includes a processor section 202 and a user interface 204. The processor section 202 includes a processor 206 together with a biosensor program 207 in accordance with f_-eatures of the preferred embodiment.
Processor section 202 contains suitable programming to perform the methods of the invention as illustrated in FIGS. 4 and 6-13. 'Phe processor section 202 includes a PDA interface connector 208 eiiabling communications with
-6-the biosensor apparatus 100. An interface logic block 210 is coupled between the PDA interface connector 208 and the processor 206. An IR interface 212 and a RF in-terface 214 are coupled to the processor 206 for commu-nications with a host computer 300. It should be under-stood that the principles of the present invention are not limited to t:.he use of connectors 134 and 208 of FIGS. 2 and 3. For example, the IR interface 212 could be used with an IR port (not shown) on the biosensor ap-paratus 100 for cornmunications between the biosensor ap-paratus 100 and the PDA 200.
PDA user interface 204 includes a touch sensitive display 220 coupled to the processor 206. PDA user in-terface 204 includE:s a stylus 222 for providing user se-lections. PDA user interface 204 includes a plurality of switches or buttons 224 for providing user selec-tions.
In accordance with the invention, the desired sys-tem behavior includes that the user attaches the biosen-sor apparatus 100 to the PDA 200; the users inserts a strip irito the biosensor apparatus 100; the PDA 200 turns on if it is off; or if it is on immediately runs the biosensor program. Then the biosensor apparatus 100 and meter and comrnunications program 131, and PDA 200 and bios(=_nsor proqram 207, run in test mode.
To enable the biosensor apparatus 100 to wake up the PDA 200 when a strip is inserted, an interrupt line of PDA 200 is used. The PDA Modem Hotsync program also uses this interrupt line. Therefore the PDA Modem Hot-sync button is re-mapped to run the biosensor program 207 and not the Modem Hotsync program. This re-mapping is done by setting the modem hotsync button in the Pref-erences program, a PDA supplied application. This re-mapping is performed at installation time. The default
PDA user interface 204 includes a touch sensitive display 220 coupled to the processor 206. PDA user in-terface 204 includE:s a stylus 222 for providing user se-lections. PDA user interface 204 includes a plurality of switches or buttons 224 for providing user selec-tions.
In accordance with the invention, the desired sys-tem behavior includes that the user attaches the biosen-sor apparatus 100 to the PDA 200; the users inserts a strip irito the biosensor apparatus 100; the PDA 200 turns on if it is off; or if it is on immediately runs the biosensor program. Then the biosensor apparatus 100 and meter and comrnunications program 131, and PDA 200 and bios(=_nsor proqram 207, run in test mode.
To enable the biosensor apparatus 100 to wake up the PDA 200 when a strip is inserted, an interrupt line of PDA 200 is used. The PDA Modem Hotsync program also uses this interrupt line. Therefore the PDA Modem Hot-sync button is re-mapped to run the biosensor program 207 and not the Modem Hotsync program. This re-mapping is done by setting the modem hotsync button in the Pref-erences program, a PDA supplied application. This re-mapping is performed at installation time. The default
-7-mapping of the hotsync modem button is to run the Modem Hotsync :program.
In order to allow a user to hotsync their PDA 200 with a modem and then to use the biosensor program 207 a check iri the biosensor communications program is per-formed to see if the test module biosensor apparatus 100 is attac:hed to the PDA 200 or a modem is attached to the PDA 200. When the biosensor program 207 starts up by the inse.rtion of a test sensor strip, a check is done to see if the biosensor apparatus 100 is attached. If the biosensor apparatus 100 is attached then the biosensor communications prog:ram continues in Test mode. If the biosensor apparatus 100 is not attached then the biosen-sor prog:ram 207 terminates and the Modem Hotsync program is initiated.
After installation of the biosensor program 207, if the user modifies the mapping of the modem hotsync but-ton (by 'the Preferences program) or a hard reset is done on the PDA 200 (which puts the modem hotsync button back to its default) t:he biosensor program 207 will not run when a user inserts a strip into the test module at-tached to the PDA 200. The logbook portion of the bio-sensor program 207 will still run because this program is started when the user taps on a predefined icon. The logbook portion is not started via the interrupt line.
If the user repeatedly inserts and removes a sensor without applying sample, the system will handle these multiple inserts thereby preventing the program from running multiple t::imes.
FIG. 4 illustrate exemplary user interface opera-tions of system 10 including the biosensor apparatus 100 of FIG. 1 and the personal data assistant 200 of FIG. 2 in accordance with the present invention. A logbook
In order to allow a user to hotsync their PDA 200 with a modem and then to use the biosensor program 207 a check iri the biosensor communications program is per-formed to see if the test module biosensor apparatus 100 is attac:hed to the PDA 200 or a modem is attached to the PDA 200. When the biosensor program 207 starts up by the inse.rtion of a test sensor strip, a check is done to see if the biosensor apparatus 100 is attached. If the biosensor apparatus 100 is attached then the biosensor communications prog:ram continues in Test mode. If the biosensor apparatus 100 is not attached then the biosen-sor prog:ram 207 terminates and the Modem Hotsync program is initiated.
After installation of the biosensor program 207, if the user modifies the mapping of the modem hotsync but-ton (by 'the Preferences program) or a hard reset is done on the PDA 200 (which puts the modem hotsync button back to its default) t:he biosensor program 207 will not run when a user inserts a strip into the test module at-tached to the PDA 200. The logbook portion of the bio-sensor program 207 will still run because this program is started when the user taps on a predefined icon. The logbook portion is not started via the interrupt line.
If the user repeatedly inserts and removes a sensor without applying sample, the system will handle these multiple inserts thereby preventing the program from running multiple t::imes.
FIG. 4 illustrate exemplary user interface opera-tions of system 10 including the biosensor apparatus 100 of FIG. 1 and the personal data assistant 200 of FIG. 2 in accordance with the present invention. A logbook
-8-block 400 is provided for displaying historical data and a graphs block 402 enables analysis of results data and graphical display c>f the historical data. A download external meter data block 404 enables downloading of data stored in the biosensor apparatus 100. A delete records block 406 enables the user to delete data rec-ords. A change user preferences block 408 enables the user to enter arid update user preferences. An about block 410 is provided for displaying system information to the user. An edit/enter user-entered records block 412 is provided for the user to enter and edit records, such as insulin, event, blood, and the like. An edit meter records block: 414 is provided for the user to edit records, meter and module records, such as markers, and the like. A waitirig for application of sample block 416 enables the user to process a change in a code F# for a test strip and start a test. A test countdown block 418 displays a countdown for the user after a sample is ap-plied to the test strip in the biosensor apparatus 100.
FIG. 5 illustrates exemplary sequential timing steps performed by the biosensor apparatus 100 in accor-dance with the present invention. In accordance with features of the invention, steps are taken to keep power usage to a minimum. When the serial port is enabled a charge pump in the PDA 200's RS232 interface chip uses a lot of power. To reduce power consumption the biosensor program 207 will briefly enable the serial port to moni-tor the clear to send (CTS) line. The CTS line is used to detect if the test module has been disconnected; to indicate when an error has occurred in the test module;
to indicate when a sample has been applied to the test sensor; and to indicate a test complete.
In FIG. 5, a strip is inserted as indicated in a block 500. Initial offset, reference and temperature readings are taken as indicated in a block 502. Then
FIG. 5 illustrates exemplary sequential timing steps performed by the biosensor apparatus 100 in accor-dance with the present invention. In accordance with features of the invention, steps are taken to keep power usage to a minimum. When the serial port is enabled a charge pump in the PDA 200's RS232 interface chip uses a lot of power. To reduce power consumption the biosensor program 207 will briefly enable the serial port to moni-tor the clear to send (CTS) line. The CTS line is used to detect if the test module has been disconnected; to indicate when an error has occurred in the test module;
to indicate when a sample has been applied to the test sensor; and to indicate a test complete.
In FIG. 5, a strip is inserted as indicated in a block 500. Initial offset, reference and temperature readings are taken as indicated in a block 502. Then
-9--waiting for a sample to be applied or threshold is per-formed as indicateci in a block 504. Then the CTS line is toggled from low to high as indicated in a block 506.
At a first set t ime: , such as 16 seconds, an of f set read-ing is taken as indicated in a block 508. At a second set time, such as 14 seconds, a reference reading is taken as indicated in a block 510. At a third set time, such as 12 seconds, a temperature reading is taken as indicated in a block 512. At a fourth set time, such as seconds, the voltage shunt 124 in the biosensor appa-ratus 100 is turned on as indicated in a block 514. At a fifth set time, such as 1 second, the voltage shunt 124 in the biosensor apparatus 100 is turned off as in-dicated i_n a block 516. Finally, at 0 seconds, the sen-sor reading is takes and a glucose reading is computed as indicated in a block 518. The data is sent to the' PDA 200 as indicated in a block 520. Then the biosensor apparatus 100 is sh-utdown as indicated in a block 522.
In accordance with features of the invention, steps are taken to maintain. critical test timing. It is im-portant to keep the user from wasting a'strip. Because of the critical timing of the test countdown and the de-sire not to waste a strip, it. is important to remain in the meter and communications program 131 while waiting for sample and during test countdown. Therefore exter-nal PDA 200 system interrupts are either ignored or de-layed, for example, system timers, button presses, menu choices, or the power off button. Because the test tim-ing is critical therefore the biosensor apparatus 100 handles all of the test timing and does not rely on the PDA 200. To conserve power the biosensor apparatus 100 is only turned on wheii a strip is inserted. The biosen-sor apparatus 100 crenerates an interrupt to wake up the PDA 200 so that the PDA 200 does not need to be running prior to the insertiori of a strip. When a test has com-pleted or when an error has occurred the biosensor appa-
At a first set t ime: , such as 16 seconds, an of f set read-ing is taken as indicated in a block 508. At a second set time, such as 14 seconds, a reference reading is taken as indicated in a block 510. At a third set time, such as 12 seconds, a temperature reading is taken as indicated in a block 512. At a fourth set time, such as seconds, the voltage shunt 124 in the biosensor appa-ratus 100 is turned on as indicated in a block 514. At a fifth set time, such as 1 second, the voltage shunt 124 in the biosensor apparatus 100 is turned off as in-dicated i_n a block 516. Finally, at 0 seconds, the sen-sor reading is takes and a glucose reading is computed as indicated in a block 518. The data is sent to the' PDA 200 as indicated in a block 520. Then the biosensor apparatus 100 is sh-utdown as indicated in a block 522.
In accordance with features of the invention, steps are taken to maintain. critical test timing. It is im-portant to keep the user from wasting a'strip. Because of the critical timing of the test countdown and the de-sire not to waste a strip, it. is important to remain in the meter and communications program 131 while waiting for sample and during test countdown. Therefore exter-nal PDA 200 system interrupts are either ignored or de-layed, for example, system timers, button presses, menu choices, or the power off button. Because the test tim-ing is critical therefore the biosensor apparatus 100 handles all of the test timing and does not rely on the PDA 200. To conserve power the biosensor apparatus 100 is only turned on wheii a strip is inserted. The biosen-sor apparatus 100 crenerates an interrupt to wake up the PDA 200 so that the PDA 200 does not need to be running prior to the insertiori of a strip. When a test has com-pleted or when an error has occurred the biosensor appa-
-10-ratus 100 is shutdown immediately after reporting its status tc the PDA 200. However, the PDA 200 will remain on. The system 10 has the capability of allowing the PDA 200 to wake up the biosensor apparatus 100 by as-serting the data terminal ready (DTR) line. The commu-nication protocol, as illustrated and described with re-spect to FIGS. 6-16, was designed to keep the power us-age by both the PDA 200 and the biosensor apparatus 100 to a minimum.
FIGS. 6-13 are flow charts illustrating exemplary sequential steps performed by the personal data assis-tant 200 in accordance with the present invention. Re-ferring to FIG. E, PDA 200 waits for a message B from the biosensor apparatus 100 or timeout as indicated in a block 600. The mE:ssage B provides a software version number arid reference method for the biosensor apparatus 100. Checking whether message B has arrived is per-formed as indicated iri a decision block 602. If message B has not arrived, then the biosensor application is terminated as indicated in a block 604. Then the modem hotsync application is run as indicated in a block 606.
When the message B has arrived, then a message C is sent to the biosensor apparatus 100 as indicated in a block 608. The message C is a query for a type of test strip.
Next waiting for a message D from the biosensor appara-tus 100 or a timeout is performed as indicated in a block 610. Checking whether message D has arrived is performed as indicated in a decision block 612. If mes-sage D has not arrived, then an error message is dis-played as indicateci in a block 614. Next waiting for the user to tap an OK button is performed as indicated in a block 616. 7'hen the logbook screen is displayed as indicated in a block 618. If message D has arrived, then checking for a type of message D is performed as indicated in a block 620. With an error message, se-quential operations continue following entry point A in
FIGS. 6-13 are flow charts illustrating exemplary sequential steps performed by the personal data assis-tant 200 in accordance with the present invention. Re-ferring to FIG. E, PDA 200 waits for a message B from the biosensor apparatus 100 or timeout as indicated in a block 600. The mE:ssage B provides a software version number arid reference method for the biosensor apparatus 100. Checking whether message B has arrived is per-formed as indicated iri a decision block 602. If message B has not arrived, then the biosensor application is terminated as indicated in a block 604. Then the modem hotsync application is run as indicated in a block 606.
When the message B has arrived, then a message C is sent to the biosensor apparatus 100 as indicated in a block 608. The message C is a query for a type of test strip.
Next waiting for a message D from the biosensor appara-tus 100 or a timeout is performed as indicated in a block 610. Checking whether message D has arrived is performed as indicated in a decision block 612. If mes-sage D has not arrived, then an error message is dis-played as indicateci in a block 614. Next waiting for the user to tap an OK button is performed as indicated in a block 616. 7'hen the logbook screen is displayed as indicated in a block 618. If message D has arrived, then checking for a type of message D is performed as indicated in a block 620. With an error message, se-quential operations continue following entry point A in
-11-FIG. 7. With a t:est strip message, sequential opera-tions continue following entry point B in FIG. 7. With a code strip message, sequential operations continue followinq entry point C in FIG. 12.
Referring to F'IG. 7 following entry point A, an er-ror from the module biosensor apparatus 100 is processed as indicated in a block 702. An error message is dis-played as indicated in a block 704. Waiting for user to tap an C>K button is performed as indicated in a block 706. Then the logbook screen is displayed as indicated in a block 708. Otherwise for a test strip message fol-lowing entry point B, the test strip message is proc-essed as indicated in a block 710. Checking whether the battery in the biosensor apparatus is dead is performed as indicated in a decision block 712. If the battery is dead, then an error message is displayed as indicated in a block 714. Waiting for user to tap an OK button is performed as indicated in a block 716. Then the logbook screen is displayed. as indicated in a block 718. If the battery is not dead, then checking whether the tempera-ture is out of range as indicated in a decision block 720. If the temperature is out of range, then an error message is displayed as indicated in a block 722. Wait-ing for user to tap an OK button is performed as indi-cated in a block 724. Then the logbook screen is dis-played as indicated in a block 726. If the temperature is in range, then a test screen is displayed with a blinking blood drop and enabling the user to change the test strip code F# as indicated in a block 728. Then the sequential operations continue following entry point D in FIG. 8.
Referring to F'IG. 8, following entry point D check-ing for a low battery status is performed as indicated in a decision block 802. If a low battery is identi-fied, then a low battery indicator is displayed as indi-
Referring to F'IG. 7 following entry point A, an er-ror from the module biosensor apparatus 100 is processed as indicated in a block 702. An error message is dis-played as indicated in a block 704. Waiting for user to tap an C>K button is performed as indicated in a block 706. Then the logbook screen is displayed as indicated in a block 708. Otherwise for a test strip message fol-lowing entry point B, the test strip message is proc-essed as indicated in a block 710. Checking whether the battery in the biosensor apparatus is dead is performed as indicated in a decision block 712. If the battery is dead, then an error message is displayed as indicated in a block 714. Waiting for user to tap an OK button is performed as indicated in a block 716. Then the logbook screen is displayed. as indicated in a block 718. If the battery is not dead, then checking whether the tempera-ture is out of range as indicated in a decision block 720. If the temperature is out of range, then an error message is displayed as indicated in a block 722. Wait-ing for user to tap an OK button is performed as indi-cated in a block 724. Then the logbook screen is dis-played as indicated in a block 726. If the temperature is in range, then a test screen is displayed with a blinking blood drop and enabling the user to change the test strip code F# as indicated in a block 728. Then the sequential operations continue following entry point D in FIG. 8.
Referring to F'IG. 8, following entry point D check-ing for a low battery status is performed as indicated in a decision block 802. If a low battery is identi-fied, then a low battery indicator is displayed as indi-
-12-cated in a block 804. Next checking for a marginal tem-perature status is performed as indicated in a decision block 806. If a marginal temperature is identified, then a niarginal temperature indicator is displayed as indicated in a block 808. Then the CTS line is moni-tored on a set time interval, such as every 1/4 second as indicated in a block 810. waiting for a timeout, such as ~s minutes or the CTS line to go low; with a user applied sample or an error for the module disconnected from the PDA as indicated in a block 812. Checking whether the CTS line is low is performed as indicated in a decision block 814. If the CTS line is not low, then an error message is displayed as indicated in a block 816. Waiting for user to tap an OK button is performed as indicated in a block 818. Then the logbook screen is displayed as indicated in a block 820. If the CTS line is low, then a mesSage E is sent to query the biosensor apparatus whether the test has started as indicated in a block 822. Then waiting for a message F from the bio-sensor apparatus or a timeout: is performed as indicated in a bloi.-~k 824. Checking whether message F has arrived is performed as indicated in a decision block 826. When the message F is not identified, then an error message is displayed as indicated in a block 828. waiting for the user to tap OK button is performed as indicated in a block 830. Then the logbook screen is displayed as in-dicated in a block 832. When the message F is identi-fied, then the sequential operations continue following entry point E in FIG. 9.
In FIG. 9, a type of message F is identified as in-dicated in a block 902. An error from the module is processed as indicated in a block 904. An error message is displayed as indicated in a block 906. Waiting for user to tap an OK button is performed as indicated in a block 908. Then the logbook screen is displayed as in-dicated in a block 910. Otherwise for a test started
In FIG. 9, a type of message F is identified as in-dicated in a block 902. An error from the module is processed as indicated in a block 904. An error message is displayed as indicated in a block 906. Waiting for user to tap an OK button is performed as indicated in a block 908. Then the logbook screen is displayed as in-dicated in a block 910. Otherwise for a test started
-13-message is processed as indicated in a block 912. A
test countdown screen is displayed as indicated in a block 914. The CTS; line is monitored, for example every quarter 'Second as indicated in a block 916. Then wait-ing for a timeout, such as 35 seconds or the CTS line to go low for a completed test, an e:rror in the module, or module disconnected from the PDA is performed as indi-cated in a block 918. Then checking whether the CTS
line is low is performed as indicated in a decision block 920. If the CTS line is not low, then an error message is displayed as indicated in a block 922. Wait-ing for user to t:.ap an OK button is performed as indi-cated in a block 924. Then the logbook screen is dis-played as indicated. in a block 926. If the CTS line is low, then a message G is sent as indicated in a block 928. Message G is a command and data message type for storing the F# (program #) in the biosensor apparatus.
Sequential operations continue following entry point F
in FIG. 1Ø
Referring to FIG. 10, next a message H is sent to query the module for the test value as indicated in a block 1000. Waiting for a message I response and the test value data :i:; performed as indicated in a block 1002. Checking whether the message I has arrived is performed as indicated in a decision block 1004. When the message I has not arrived, then an error message is displayed as indicated in a block 1006. Waiting for user to tap an OK button is performed as indicated in a block 1008. Then the logbook screen is displayed as in-dicated in a block 1010. When the message I has ar-rived, then the type of message I is identified as indi-cated in a block 1012. An error from the module is processed as indicGLt:ed in a block 1014. Then an error message is displayed as indicated in a block 1016.
Waiting f:or user to tap an OK button is performed as in-dicated in a block 1018. Then the logbook screen is
test countdown screen is displayed as indicated in a block 914. The CTS; line is monitored, for example every quarter 'Second as indicated in a block 916. Then wait-ing for a timeout, such as 35 seconds or the CTS line to go low for a completed test, an e:rror in the module, or module disconnected from the PDA is performed as indi-cated in a block 918. Then checking whether the CTS
line is low is performed as indicated in a decision block 920. If the CTS line is not low, then an error message is displayed as indicated in a block 922. Wait-ing for user to t:.ap an OK button is performed as indi-cated in a block 924. Then the logbook screen is dis-played as indicated. in a block 926. If the CTS line is low, then a message G is sent as indicated in a block 928. Message G is a command and data message type for storing the F# (program #) in the biosensor apparatus.
Sequential operations continue following entry point F
in FIG. 1Ø
Referring to FIG. 10, next a message H is sent to query the module for the test value as indicated in a block 1000. Waiting for a message I response and the test value data :i:; performed as indicated in a block 1002. Checking whether the message I has arrived is performed as indicated in a decision block 1004. When the message I has not arrived, then an error message is displayed as indicated in a block 1006. Waiting for user to tap an OK button is performed as indicated in a block 1008. Then the logbook screen is displayed as in-dicated in a block 1010. When the message I has ar-rived, then the type of message I is identified as indi-cated in a block 1012. An error from the module is processed as indicGLt:ed in a block 1014. Then an error message is displayed as indicated in a block 1016.
Waiting f:or user to tap an OK button is performed as in-dicated in a block 1018. Then the logbook screen is
-14-displayed as indicated in a block 1020. Otherwise, a glucose value is px-ocessed as indicated in a block 1022.
Next checking whether the module battery is dead is per-formed as indicated in a block 1024. If the module bat-tery is dead, then ari error message is displayed as in-dicated in a block 1026. Waiting for user to tap an OK
button is performed as indicated in a block 1028. Then the logbook screen is displayed as indicated in a block 1030. If the mociule battery is not dead, then checking whether the module temperature is out of range as indi-cated in a decision block 1032. If the module tempera-ture is out of range, then sequential operations con-tinue following entry point G in FIG. 11. If the module temperature is not out of range, then sequential opera-tions continue following entry point H in FIG. 11.
Referring to FIG. 11, following entry point G an error message is di_splayed as indicated in a block 1102.
Waiting for user to tap an OK button is performed as in-dicated in a bloc}: 1104. Then the logbook screen is displayed as indicated in a block 1106. Following entry point H'the glucose value is displayed as indicated in a block 1108. Check_Lng for a low battery is performed as indicated in a decision block 1110. If a low battery is identified, then a low battery indicator is displayed as indicated in a block 1112. Checking for a marginal tem-perature is performed as indicated in a decision block 1114. If a marginal temperature is identified, then a marginal temperature indicator is displayed as indicated in a block 1116. Next waiting for the user to tap a DONE button is performed as indicated in a block 1118.
The glucose record is stored as indicated in a block 1120. Then the loqbook screen is displayed as indicated in a block 1120.
Referring to F'I:G. 12, following entry point C after a code strip messaqe type is identified at block 620 in
Next checking whether the module battery is dead is per-formed as indicated in a block 1024. If the module bat-tery is dead, then ari error message is displayed as in-dicated in a block 1026. Waiting for user to tap an OK
button is performed as indicated in a block 1028. Then the logbook screen is displayed as indicated in a block 1030. If the mociule battery is not dead, then checking whether the module temperature is out of range as indi-cated in a decision block 1032. If the module tempera-ture is out of range, then sequential operations con-tinue following entry point G in FIG. 11. If the module temperature is not out of range, then sequential opera-tions continue following entry point H in FIG. 11.
Referring to FIG. 11, following entry point G an error message is di_splayed as indicated in a block 1102.
Waiting for user to tap an OK button is performed as in-dicated in a bloc}: 1104. Then the logbook screen is displayed as indicated in a block 1106. Following entry point H'the glucose value is displayed as indicated in a block 1108. Check_Lng for a low battery is performed as indicated in a decision block 1110. If a low battery is identified, then a low battery indicator is displayed as indicated in a block 1112. Checking for a marginal tem-perature is performed as indicated in a decision block 1114. If a marginal temperature is identified, then a marginal temperature indicator is displayed as indicated in a block 1116. Next waiting for the user to tap a DONE button is performed as indicated in a block 1118.
The glucose record is stored as indicated in a block 1120. Then the loqbook screen is displayed as indicated in a block 1120.
Referring to F'I:G. 12, following entry point C after a code strip messaqe type is identified at block 620 in
-15-FIG. 6, the code st:rip message is processed as indicated in a blcck 1202. Checking whether the battery in the biosensor apparatus is dead is performed as indicated in a decision block 1204. If the battery is dead, then an error message is di.splayed as indicated in a block 1206.
Waiting for user to tap an OK button is performed as in-dicated in a block 1208. Then the logbook screen is displayed as indicated in a block 1210. If the battery is not dead, then checking whether the temperature is out of range as indicated in a decision block 1212. If the temperature is out of range, then an error message is displayed as indicated in a block 1214. Waiting for user to tap an OK :button is performed as indicated in a block 1216. Then the logbook screen is displayed as in-dicated in a block 1218. If the temperature is not out of range, then a':est screen is displayed without the blinking blood drop and without enabling the user to change the test strip code F# as indicated in a block 1220. Then the sequential operations continue following entry point I in FIG. 13.
Referring to FIG. 13, following entry point I
checking for a low battery status is performed as indi-cated in a decision block 1302. If a low battery is identified, then a low battery indicator is displayed as indicated in a block :1304. Next checking for a marginal temperature status is performed as indicated in a deci-sion block 1306. If a marginal temperature is identi-fied, then a margir.Lal temperature indicator is displayed as indicated in a block 1308. Waiting for a timeout;
the user to turn of_f the PDA; or the user to select an-other application is performed as indicated in a block 1312.. Then the display returns to the logbook screen as indicated in a block 1314. Then the user turns off the PDA or runs another application as indicated in a block 1316.
Waiting for user to tap an OK button is performed as in-dicated in a block 1208. Then the logbook screen is displayed as indicated in a block 1210. If the battery is not dead, then checking whether the temperature is out of range as indicated in a decision block 1212. If the temperature is out of range, then an error message is displayed as indicated in a block 1214. Waiting for user to tap an OK :button is performed as indicated in a block 1216. Then the logbook screen is displayed as in-dicated in a block 1218. If the temperature is not out of range, then a':est screen is displayed without the blinking blood drop and without enabling the user to change the test strip code F# as indicated in a block 1220. Then the sequential operations continue following entry point I in FIG. 13.
Referring to FIG. 13, following entry point I
checking for a low battery status is performed as indi-cated in a decision block 1302. If a low battery is identified, then a low battery indicator is displayed as indicated in a block :1304. Next checking for a marginal temperature status is performed as indicated in a deci-sion block 1306. If a marginal temperature is identi-fied, then a margir.Lal temperature indicator is displayed as indicated in a block 1308. Waiting for a timeout;
the user to turn of_f the PDA; or the user to select an-other application is performed as indicated in a block 1312.. Then the display returns to the logbook screen as indicated in a block 1314. Then the user turns off the PDA or runs another application as indicated in a block 1316.
-16-FIGS. 14-16 are flow charts illustrating exemplary sequential steps performed by the biosensor apparatus 100 in accordance with the present invention. Referring to FIG. 14, first the biosensor apparatus 100 sends a message B to the PDA as indicated in a block 1402. Mes-sage B provides a software version number. The biosen-sor apparatus 100 waits for the message C, query for type of test strip, from the PDA or a timeout as indi-cated in a block 1404. Checking whether message C has arrived is performed as indicated in a decision block 1406. When message C has not arrived, then the biosen-sor apparatus 100 is shut down as indicated in a block 1408. When message C has arrived, then the biosensor apparatus, 100 sends message D as indicated in a block 1410. When an errcr and error code is sent as indicated in a block 1412, then the biosensor apparatus 100 is shut down as indicated in a block 1414. When a code strip response is sent as indicated in a block 1416, then the biosensor apparatus 100 is shut down as indi-cated in a block 1418. When a test strip response is sent as indicated ir.i a block 1420, then the CTS line is set to high as indicat:ed in a block 1422. Then the bio-sensor apparatus 100 waits for a timeout, such as after three miriutes or for the user to apply a sample as indi-cated in a block =1.424. Checking for a user applied sam-ple is performed as indicated in a decision block 1426.
When a user applied sample is not identified, then the biosensor apparattxs 100 is shut down as indicated in a block 14.28. When a user applied sample is identified, then the sequential operations continue following entry point J in FIG. 15.
Referring to F'IG. 15, after a user applied sample is identified, then the CTS line is set low as indicated in a block 1502. Then the biosensor apparatus 100 waits for a message E or a timeout after a set number of sec-onds as indicated in a block 1504. Checking whether
When a user applied sample is not identified, then the biosensor apparattxs 100 is shut down as indicated in a block 14.28. When a user applied sample is identified, then the sequential operations continue following entry point J in FIG. 15.
Referring to F'IG. 15, after a user applied sample is identified, then the CTS line is set low as indicated in a block 1502. Then the biosensor apparatus 100 waits for a message E or a timeout after a set number of sec-onds as indicated in a block 1504. Checking whether
-17-message E has arrived is performed as indicated in a de-cision block 1506. When message E has not arrived, then the biosensor apparatus 100 is shut down as indicated in a block 1508. When message E has arrived, then the bio-sensor apparatus 100 sets the CTS line high as indicated in a block 1510. The biosensor apparatus 100 sends a message F to the PDA as indicated in a block 1512. Mes-sage F provides an error as indicated in a block 1514.
Then the biosensor apparatus 100 is shut down as indi-cated in a block 1516. Message F indicates that the test has started as indicated in a block 1518. Next the biosensor apparatus 100 waits for the test to complete, or the user to remove sensor or an error to occur as in-dicated in a block 1520. Then the biosensor apparatus 100 sets the CTS line low as indicated in a block 1522.
Next the biosensor apparatus 100 waits for a message G
or timeout as indicated in a block 1524. Then the se-quential operatiorls continue following entry point K in FIG. 16.
Referring to FIG. 16, checking whether message G
has arrived is performed as indicated in a decision block 1602. When message G has not arrived, then the biosensor apparatus 100 is shut down as indicated in a block 1604. When message G has arrived, then the bio-sensor apparatus 100 stores the test strip code F# as indicated in a block 1606. Next the biosensor apparatus 100 waits for a message H from the PDA or a timeout as indicated in a block 1608. Message H is a query for the test value. Checking whether message H has arrived is performed as indicated in a decision block 1610. When message H has not arrived, then the biosensor apparatus 100 is shut down as indicated in a block 1612. When message H has arrived, then the biosensor apparatus 100 sends a message I as indicated in a block 1614. Message I provides an error as indicated in a block 1616. Then the biosensor apparatus 100 is shut down as indicated in
Then the biosensor apparatus 100 is shut down as indi-cated in a block 1516. Message F indicates that the test has started as indicated in a block 1518. Next the biosensor apparatus 100 waits for the test to complete, or the user to remove sensor or an error to occur as in-dicated in a block 1520. Then the biosensor apparatus 100 sets the CTS line low as indicated in a block 1522.
Next the biosensor apparatus 100 waits for a message G
or timeout as indicated in a block 1524. Then the se-quential operatiorls continue following entry point K in FIG. 16.
Referring to FIG. 16, checking whether message G
has arrived is performed as indicated in a decision block 1602. When message G has not arrived, then the biosensor apparatus 100 is shut down as indicated in a block 1604. When message G has arrived, then the bio-sensor apparatus 100 stores the test strip code F# as indicated in a block 1606. Next the biosensor apparatus 100 waits for a message H from the PDA or a timeout as indicated in a block 1608. Message H is a query for the test value. Checking whether message H has arrived is performed as indicated in a decision block 1610. When message H has not arrived, then the biosensor apparatus 100 is shut down as indicated in a block 1612. When message H has arrived, then the biosensor apparatus 100 sends a message I as indicated in a block 1614. Message I provides an error as indicated in a block 1616. Then the biosensor apparatus 100 is shut down as indicated in
-18-a block 1618. Message I indicates a glucose value as indicated in a block. 1620. Then the biosensor apparatus 100 is shut down as indicated in a block 1622.
While the present invention has been described with reference to the details of the embodiments of the in-vention shown in the drawings, these details are not in-tended tc> limit the scope of the invention as claimed in the appended claims.
While the present invention has been described with reference to the details of the embodiments of the in-vention shown in the drawings, these details are not in-tended tc> limit the scope of the invention as claimed in the appended claims.
Claims (18)
PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A system for communications between a biosensor apparatus and a personal digital device, said system comprising:
the biosensor apparatus including:
a sensor for receiving a user sample to be measured;
a microcontroller for performing a predefined test sequence for measuring a predefined parameter value; and a first interface logic block coupled to said microcontroller for communicating with the personal digital device; and the personal digital device including a second interface logic block for communicating with the biosensor apparatus, the personal digital device providing data management and analysis of biosensor results, and the personal digital device starting up for communication with the biosensor apparatus after said predefined test sequence has begun.
the biosensor apparatus including:
a sensor for receiving a user sample to be measured;
a microcontroller for performing a predefined test sequence for measuring a predefined parameter value; and a first interface logic block coupled to said microcontroller for communicating with the personal digital device; and the personal digital device including a second interface logic block for communicating with the biosensor apparatus, the personal digital device providing data management and analysis of biosensor results, and the personal digital device starting up for communication with the biosensor apparatus after said predefined test sequence has begun.
2. A system for communications between a biosensor apparatus and a personal digital device, said system comprising:
the biosensor apparatus including:
a sensor for receiving a user sample to be measured;
a microcontroller for a predefined test sequence for measuring a predefined parameter value; and a first interface logic block coupled to said microcontroller for communicating with the personal digital device; and the personal digital device including a second interface logic block for communicating with the biosensor apparatus, the personal digital device providing an operator interface, data management and analysis of biosensor results, and the personal digital device starting up for communication with the biosensor apparatus after said predefined test sequence has begun, wherein said microcontroller controlling timed measurements during said predefined test sequence for measuring said predefined parameter value.
the biosensor apparatus including:
a sensor for receiving a user sample to be measured;
a microcontroller for a predefined test sequence for measuring a predefined parameter value; and a first interface logic block coupled to said microcontroller for communicating with the personal digital device; and the personal digital device including a second interface logic block for communicating with the biosensor apparatus, the personal digital device providing an operator interface, data management and analysis of biosensor results, and the personal digital device starting up for communication with the biosensor apparatus after said predefined test sequence has begun, wherein said microcontroller controlling timed measurements during said predefined test sequence for measuring said predefined parameter value.
3. A system for communications between a biosensor apparatus and a personal digital device as recited in claim 2 wherein the personal digital device displays predefined screens to the user for receiving user preferences and user entered records, for editing stored records, and for logbook functions; and for analysis and graphical display of biosensor results.
4. A system for communications between a biosensor apparatus and a personal digital device, said system comprising:
the biosensor apparatus including:
a sensor for receiving a user sample to be measured;
a microcontroller for performing a predefined test sequence for measuring a predefined parameter value; and a first interface logic block coupled to said microcontroller for communicating with the personal digital device; and the personal digital device including a second interface logic block for communicating with the biosensor apparatus, the personal digital device providing an operator interface, data management and analysis of biosensor results, and the personal digital device starting up for communication with the biosensor apparatus after said predefined test sequence has begun, wherein said microcontroller detects insertion of said sensor, said microcontroller applies an interrupt to the personal digital device responsive to said sensor being inserted, and said microcontroller sends predefined messages to the personal digital device during said predefined test sequence.
the biosensor apparatus including:
a sensor for receiving a user sample to be measured;
a microcontroller for performing a predefined test sequence for measuring a predefined parameter value; and a first interface logic block coupled to said microcontroller for communicating with the personal digital device; and the personal digital device including a second interface logic block for communicating with the biosensor apparatus, the personal digital device providing an operator interface, data management and analysis of biosensor results, and the personal digital device starting up for communication with the biosensor apparatus after said predefined test sequence has begun, wherein said microcontroller detects insertion of said sensor, said microcontroller applies an interrupt to the personal digital device responsive to said sensor being inserted, and said microcontroller sends predefined messages to the personal digital device during said predefined test sequence.
5. A system for communications between a biosensor apparatus and a personal digital device as recited in claim 4 wherein the personal digital device displays a test screen enabling the user to change a test strip code, and the personal digital device sends at least one predefined message to the biosensor apparatus during said predefined test sequence.
6. A system for communications between a biosensor apparatus and a personal digital device, said system comprising:
the biosensor apparatus including:
a sensor for receiving a user sample to be measured;
a microcontroller for performing a predefined test sequence for measuring a predefined parameter value; and a first interface logic block coupled to said microcontroller for communicating with the personal digital device; and the personal digital device including a second interface logic block for communicating with the biosensor apparatus, the personal digital device providing an operator interface, data management and analysis of biosensor results, and the personal digital device starting up for communication with the biosensor apparatus after said predefined test sequence has begun, wherein the personal digital device monitors a clear to send (CTS) line, and said microcontroller uses said CTS line to indicate said sensor being inserted to start said predefined test sequence and said microcontroller uses said CTS line to indicate an applied sample to said sensor.
the biosensor apparatus including:
a sensor for receiving a user sample to be measured;
a microcontroller for performing a predefined test sequence for measuring a predefined parameter value; and a first interface logic block coupled to said microcontroller for communicating with the personal digital device; and the personal digital device including a second interface logic block for communicating with the biosensor apparatus, the personal digital device providing an operator interface, data management and analysis of biosensor results, and the personal digital device starting up for communication with the biosensor apparatus after said predefined test sequence has begun, wherein the personal digital device monitors a clear to send (CTS) line, and said microcontroller uses said CTS line to indicate said sensor being inserted to start said predefined test sequence and said microcontroller uses said CTS line to indicate an applied sample to said sensor.
7. A system for communications between a biosensor apparatus and a personal digital device as recited in claim 6 wherein said microcontroller sends a test started message to the personal digital device to start said predefined test sequence.
8. A system for communications between a biosensor apparatus and a personal digital device as recited in claim 7 wherein the personal digital device displays a countdown screen responsive to said test started message, and the personal digital device sends a predefined query message to the biosensor apparatus, said predefined query message for requesting a test result value.
9. A system for communications between a biosensor apparatus and a personal digital device as recited in claim 8 wherein said microcontroller sends said test result value to the personal digital device and the personal digital device displays said test result value.
10. A method for implementing communications between a biosensor apparatus and a personal digital device comprising the steps of:
providing the biosensor apparatus with a sensor for receiving a user sample and a microcontroller for performing a predefined test sequence for measuring a predefined parameter value;
utilizing the biosensor apparatus for starting up the personal digital device after said predefined test sequence has begun and for transferring status information and said predefined parameter value to the personal digital device; and utilizing the personal digital device for providing an operator interface, data management and analysis of biosensor results and for communicating with the biosensor apparatus during said predefined test sequence.
providing the biosensor apparatus with a sensor for receiving a user sample and a microcontroller for performing a predefined test sequence for measuring a predefined parameter value;
utilizing the biosensor apparatus for starting up the personal digital device after said predefined test sequence has begun and for transferring status information and said predefined parameter value to the personal digital device; and utilizing the personal digital device for providing an operator interface, data management and analysis of biosensor results and for communicating with the biosensor apparatus during said predefined test sequence.
11. A method for implementing communications between a biosensor apparatus and a personal digital device comprising the steps of:
providing the biosensor apparatus with a sensor for receiving a user sample and a microcontroller for performing a predefined test sequence for measuring a predefined parameter value;
utilizing the biosensor apparatus for starting up the personal digital device after said predefined test sequence has begun and for transferring status information and said predefined parameter value to the personal digital device;
utilizing the personal digital device for providing an operator interface, data management and analysis of biosensor results and for communicating with the biosensor apparatus during said predefined test sequence; and said microcontroller applying an interrupt to the personal digital device responsive to said sensor being inserted.
providing the biosensor apparatus with a sensor for receiving a user sample and a microcontroller for performing a predefined test sequence for measuring a predefined parameter value;
utilizing the biosensor apparatus for starting up the personal digital device after said predefined test sequence has begun and for transferring status information and said predefined parameter value to the personal digital device;
utilizing the personal digital device for providing an operator interface, data management and analysis of biosensor results and for communicating with the biosensor apparatus during said predefined test sequence; and said microcontroller applying an interrupt to the personal digital device responsive to said sensor being inserted.
12. A method for implementing communications between a biosensor apparatus and a personal digital device comprising the steps of:
providing the biosensor apparatus with a sensor for receiving a user sample and a microcontroller for performing a predefined test sequence for measuring a predefined parameter value;
utilizing the biosensor apparatus for starting up the personal digital device after said predefined test sequence has begun and for transferring status information and said predefined parameter value to the personal digital device; and utilizing the personal digital device for providing an operator interface, data management and analysis of biosensor results and for communicating with the biosensor apparatus during said predefined test sequence, wherein the personal digital device monitors a clear to send (CTS) line, and said microcontroller uses said CTS line to indicate that a sample has been applied to said sensor, that a test has been completed, or when an error has occurred.
providing the biosensor apparatus with a sensor for receiving a user sample and a microcontroller for performing a predefined test sequence for measuring a predefined parameter value;
utilizing the biosensor apparatus for starting up the personal digital device after said predefined test sequence has begun and for transferring status information and said predefined parameter value to the personal digital device; and utilizing the personal digital device for providing an operator interface, data management and analysis of biosensor results and for communicating with the biosensor apparatus during said predefined test sequence, wherein the personal digital device monitors a clear to send (CTS) line, and said microcontroller uses said CTS line to indicate that a sample has been applied to said sensor, that a test has been completed, or when an error has occurred.
13. A method for implementing communications between a biosensor apparatus and a personal digital device comprising the steps of:
providing the biosensor apparatus with a sensor for receiving a user sample and a microcontroller for performing a predefined test sequence for measuring a predefined parameter value;
utilizing the biosensor apparatus for starting up the personal digital device after said predefined test sequence has begun and for transferring status information and said predefined parameter value to the personal digital device; and utilizing the personal digital device for providing an operator interface, data management and analysis of biosensor results and for communicating with the biosensor apparatus during said predefined test sequence, wherein said microcontroller sends a predefined message identifying said inserted sensor and status of the biosensor apparatus to the personal digital device, and the personal digital device displays a predefined test screen to prompt the user to apply a sample.
providing the biosensor apparatus with a sensor for receiving a user sample and a microcontroller for performing a predefined test sequence for measuring a predefined parameter value;
utilizing the biosensor apparatus for starting up the personal digital device after said predefined test sequence has begun and for transferring status information and said predefined parameter value to the personal digital device; and utilizing the personal digital device for providing an operator interface, data management and analysis of biosensor results and for communicating with the biosensor apparatus during said predefined test sequence, wherein said microcontroller sends a predefined message identifying said inserted sensor and status of the biosensor apparatus to the personal digital device, and the personal digital device displays a predefined test screen to prompt the user to apply a sample.
14. A method for implementing communications between a biosensor apparatus and a personal digital device as recited in claim 13 wherein the personal digital device monitors a clear to send (CTS) line to indicate an applied sample to said sensor.
15. A method for implementing communications between a biosensor apparatus and a personal digital device comprising the steps of:
providing the biosensor apparatus with a sensor for receiving a user sample and a microcontroller for performing a predefined test sequence for measuring a predefined parameter value;
utilizing the biosensor apparatus for starting up the personal digital device after said predefined test sequence has begun, and for transferring status information and said predefined parameter value to the personal digital device;
utilizing the personal digital device for providing an operator interface, data management and analysis of biosensor results, and for communicating with the biosensor apparatus during said predefined test sequence, wherein said microcontroller sends a predefined test started message to the personal digital device to start said predefined test sequence.
providing the biosensor apparatus with a sensor for receiving a user sample and a microcontroller for performing a predefined test sequence for measuring a predefined parameter value;
utilizing the biosensor apparatus for starting up the personal digital device after said predefined test sequence has begun, and for transferring status information and said predefined parameter value to the personal digital device;
utilizing the personal digital device for providing an operator interface, data management and analysis of biosensor results, and for communicating with the biosensor apparatus during said predefined test sequence, wherein said microcontroller sends a predefined test started message to the personal digital device to start said predefined test sequence.
16. A method for implementing communications between a biosensor apparatus and a personal digital device as recited in claim 15 wherein the personal digital device displays a countdown screen responsive to said predefined test started message.
17. A method for implementing communications between a biosensor apparatus and a personal digital device comprising the steps of:
providing the biosensor apparatus with a sensor for receiving a user sample and a microcontroller for performing a predefined test sequence for measuring a predefined parameter value;
utilizing the biosensor apparatus for starting up the personal digital device after said predefined test sequence has begun, and for transferring status information and said predefined parameter value to the personal digital device; and utilizing the personal digital device for providing an operator interface, data management and analysis of biosensor results, and for communicating with the biosensor apparatus during said predefined test sequence, wherein said microcontroller sends a predefined test results message to the personal digital device; and the personal digital device displays a test results screen responsive to said predefined test results message.
providing the biosensor apparatus with a sensor for receiving a user sample and a microcontroller for performing a predefined test sequence for measuring a predefined parameter value;
utilizing the biosensor apparatus for starting up the personal digital device after said predefined test sequence has begun, and for transferring status information and said predefined parameter value to the personal digital device; and utilizing the personal digital device for providing an operator interface, data management and analysis of biosensor results, and for communicating with the biosensor apparatus during said predefined test sequence, wherein said microcontroller sends a predefined test results message to the personal digital device; and the personal digital device displays a test results screen responsive to said predefined test results message.
18. A method for implementing communications between a biosensor apparatus and a personal digital device as recited in claim 17 wherein the biosensor apparatus shuts down responsive to sending said predefined test results message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2689656A CA2689656A1 (en) | 2000-06-16 | 2001-05-29 | System, method and biosensor apparatus for data communications with a personal data assistant |
Applications Claiming Priority (2)
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|---|---|---|---|
| US21196400P | 2000-06-16 | 2000-06-16 | |
| US60/211,964 | 2000-06-16 |
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| CA2689656A Division CA2689656A1 (en) | 2000-06-16 | 2001-05-29 | System, method and biosensor apparatus for data communications with a personal data assistant |
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| CA2349021A1 CA2349021A1 (en) | 2001-12-16 |
| CA2349021C true CA2349021C (en) | 2010-03-30 |
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| CA2689656A Abandoned CA2689656A1 (en) | 2000-06-16 | 2001-05-29 | System, method and biosensor apparatus for data communications with a personal data assistant |
| CA2349021A Expired - Fee Related CA2349021C (en) | 2000-06-16 | 2001-05-29 | System, method and biosensor apparatus for data communications with a personal data assistant |
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| CA2689656A Abandoned CA2689656A1 (en) | 2000-06-16 | 2001-05-29 | System, method and biosensor apparatus for data communications with a personal data assistant |
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| EP (2) | EP2302546A1 (en) |
| JP (1) | JP4804652B2 (en) |
| AU (1) | AU767994B2 (en) |
| CA (2) | CA2689656A1 (en) |
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| EP1164530A2 (en) | 2001-12-19 |
| US20010056328A1 (en) | 2001-12-27 |
| CA2349021A1 (en) | 2001-12-16 |
| JP2002095653A (en) | 2002-04-02 |
| CA2689656A1 (en) | 2001-12-16 |
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