US3853118A - Swelling detector - Google Patents
Swelling detector Download PDFInfo
- Publication number
- US3853118A US3853118A US00392848A US39284873A US3853118A US 3853118 A US3853118 A US 3853118A US 00392848 A US00392848 A US 00392848A US 39284873 A US39284873 A US 39284873A US 3853118 A US3853118 A US 3853118A
- Authority
- US
- United States
- Prior art keywords
- swelling
- liquid
- needle
- arm
- blood vessel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
- A61B5/1073—Measuring volume, e.g. of limbs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6824—Arm or wrist
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/683—Means for maintaining contact with the body
- A61B5/6831—Straps, bands or harnesses
Definitions
- Intravenous alimentation is extensively used in hospitals on patients of various ages including infants. When an intravenous needle accidentally moves out of the blood vessel, the liquid being delivered spreads into the surrounding tissues causing painful swelling thereof. When such abnormal delivery is detected at an early stage, the liquid-delivery means can be stopped and the swelling prevented.
- This invention provides a swelling detector for detecting the swelling in a patients body member to which liquiddelivering means are inserted into a blood vessel thereof for delivering liquid thereto.
- a pressureresponsive element is constructed and arranged to be attached to the member, near the liquid-delivering means, for detecting a change in the pressure exerted a by the member.
- the output signal from the pressureresponsive detector is indicative of the swelling of the member.
- FIG. 1 is a schematic representation of the swelling detector of the present-invention
- FIG. 2 shows one type of pressure transducer that can be used in the detector of FIG. 1;
- FIG. 3 shows another type of pressure transducer.
- FIGS. 1 and 2 of the drawings there is shown a portion of a body of a patient, such as an arm 10, to which is coupled an intravenous feeding device 12 from which a suitable liquid is fed through a conduit 14 into a needle (not shown) inserted in a blood vessel of the patient.
- an intravenous feeding device 12 from which a suitable liquid is fed through a conduit 14 into a needle (not shown) inserted in a blood vessel of the patient.
- the needle Under normal operating conditions the needle remains in the blood vessel and the liquid is fed into the blood circulation system of the patient. Under abnormal operating conditions, however, the needle may withdraw from the blood vessel thereby causing the supplied liquid to spread into adjacent tissues resulting in swelling thereof.
- the swelling is almost instantaneous and accordingly it is desired to detect an intravenous-feeding abnormality as soon as the swelling starts.
- the swelling detector generally designated as 20, typically includes but is not limited to a band or tape 22 to which is secured a pressure transducer generally designated as 24 for measuring the change in pressure produced by the expansion of the body member.
- the pressure transducer is arranged to produce an output warning signal which can be mechanically, optically, or electronically amplified.
- strain gauge is sensitive enough to detect strains as low as 0.0001 inch per inch or better.
- the bridge network 30 can be made to feed an alarm signal to a central station 32 having a recorder 34 for continuously monitoring the condition of one or more swelling detectors 20 on patients in the hospital.
- a suitable visual or audio alarm can be obtained from the recorder upon the occurrence of an abnormality in a patients intravenous feeding system.
- Pressure-responsive elements other than strain gauges can of course be employed.
- a pressure detector (FIG. 3) containing a fluid 42 (gas or liquid) in an envelope 40 and to monitor with a pressure transducer 44 the pressure variations in the fluid in response to an expansion in the patients body member caused by swelling.
- FOG. 3 pressure detector containing a fluid 42 (gas or liquid) in an envelope 40 and to monitor with a pressure transducer 44 the pressure variations in the fluid in response to an expansion in the patients body member caused by swelling.
- Other variations will readily become apparent to those skilled in the an.
- Y 1 In a method for delivering a liquid through a needle into a blood vessel of a patients arm whereby under normal conditions the needle remains in the blood vessel and the liquid is fed into the blood circulation system of the patient, and under abnormal conditions, the needle withdraws from the blood vessel thereby causing the supplied liquid to spread into adjacent tissues, the spreading of the liquid resulting in swelling of the arm, said method comprising:
- the band containing a fluid chamber, the pressure of said fluid in said chamber increasing with the swelling of said arm,
Abstract
A swelling detector for detecting the swelling in a member of a patient''s body which includes a pressure responsive transducer applied to the member for monitoring changes in the volume thereof.
Description
United States Patent Schendel Dec. 10, 1974 [5 SWELLING DETECTOR 3,533,095 10/1970 Collins 119/1 x [75] Inventor: Robert E. Schendel, Houston, Tex. ggg g [73] Assignee: Measurand Systems, a division of 31680386 8/1972 l 73/379 R Newpark Resources Inc. New 3,782,368 l/l974 Relbold 128/2 S Orleans, La.
[22] Filed: Aug, 29, 1973 Primary ExaminerAldrich F. Medbery 1 pp O 392,8 8 Attorney, Agent, or Firm-Michael P. Breston' 52 us. (:1. 128/2 s, 73/379 R 57 ABSTRACT [51] Int. Cl A61b 5/10 E 1 [581 Field Search 128/2 5, 2 R105 P; A swelling detector for detecting the swelling in a 73/379; 1 19/ 1 member of a patients body which includes a pressure responsive transducer applied to the member for mon- [56] References Clted itoring changes in the volume thereof.
UNITED STATES PATENTS 3,520,294 7/1970 Fuzz ell et a1. 128/2 S 1 Claim, 3 Drawing Figures PAIENIEB sic 01914 FIG. I.
RECORDER BRIDGE CIRCUIT PRESSURE T RANSDUCER SWELLING DETECTOR BACKGROUND OF THE INVENTION Intravenous alimentation is extensively used in hospitals on patients of various ages including infants. When an intravenous needle accidentally moves out of the blood vessel, the liquid being delivered spreads into the surrounding tissues causing painful swelling thereof. When such abnormal delivery is detected at an early stage, the liquid-delivery means can be stopped and the swelling prevented.
Accordingly, it is a broad object of the present invention to provide a swelling detector for use on portions of a patients body for detecting swelling thereof.
SUMMARY OF THE INVENTION This invention provides a swelling detector for detecting the swelling in a patients body member to which liquiddelivering means are inserted into a blood vessel thereof for delivering liquid thereto. A pressureresponsive element is constructed and arranged to be attached to the member, near the liquid-delivering means, for detecting a change in the pressure exerted a by the member. The output signal from the pressureresponsive detector is indicative of the swelling of the member.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic representation of the swelling detector of the present-invention;
FIG. 2 shows one type of pressure transducer that can be used in the detector of FIG. 1; and
FIG. 3 shows another type of pressure transducer.
Referring now to FIGS. 1 and 2 of the drawings, there is shown a portion of a body of a patient, such as an arm 10, to which is coupled an intravenous feeding device 12 from which a suitable liquid is fed through a conduit 14 into a needle (not shown) inserted in a blood vessel of the patient.
Under normal operating conditions the needle remains in the blood vessel and the liquid is fed into the blood circulation system of the patient. Under abnormal operating conditions, however, the needle may withdraw from the blood vessel thereby causing the supplied liquid to spread into adjacent tissues resulting in swelling thereof.
The swelling is almost instantaneous and accordingly it is desired to detect an intravenous-feeding abnormality as soon as the swelling starts. The swelling detector, generally designated as 20, typically includes but is not limited to a band or tape 22 to which is secured a pressure transducer generally designated as 24 for measuring the change in pressure produced by the expansion of the body member. The pressure transducer is arranged to produce an output warning signal which can be mechanically, optically, or electronically amplified.
- change. This causes the electrical resistance of the wire to change. Even though this resistance change is small, often a fraction of an ohm, a suitable bridge network 30 can be used to detect such small variations. The
strain gauge is sensitive enough to detect strains as low as 0.0001 inch per inch or better.
The bridge network 30 can be made to feed an alarm signal to a central station 32 having a recorder 34 for continuously monitoring the condition of one or more swelling detectors 20 on patients in the hospital. A suitable visual or audio alarm can be obtained from the recorder upon the occurrence of an abnormality in a patients intravenous feeding system.
Pressure-responsive elements other than strain gauges can of course be employed. For example, it may be desirable to employ a pressure detector (FIG. 3) containing a fluid 42 (gas or liquid) in an envelope 40 and to monitor with a pressure transducer 44 the pressure variations in the fluid in response to an expansion in the patients body member caused by swelling. Other variations will readily become apparent to those skilled in the an.
What is claimed is:
Y 1. In a method for delivering a liquid through a needle into a blood vessel of a patients arm whereby under normal conditions the needle remains in the blood vessel and the liquid is fed into the blood circulation system of the patient, and under abnormal conditions, the needle withdraws from the blood vessel thereby causing the supplied liquid to spread into adjacent tissues, the spreading of the liquid resulting in swelling of the arm, said method comprising:
attaching a band around said arm near said needle,
the band containing a fluid chamber, the pressure of said fluid in said chamber increasing with the swelling of said arm,
coupling a pressure transducer to said chamber for detecting the pressure increase in said chamber, and converting the pressure increase to a warning signal of said abnormal conditions.
Claims (1)
1. In a method for delivering a liquid through a needle into a blood vessel of a patient''s arm whereby under normal conditions the needle remains in the blood vessel and the liquid is fed into the blood circulation system of the patient, and under abnormal conditions, the needle withdraws from the blood vessel thereby causing the supplied liquid to spread into adjacent tissues, the spreading of the liquid resulting in swelling of the arm, said method comprising: attaching a band around said arm near said needle, the band containing a fluid chamber, the pressure of said fluid in said chamber increasing with the swelling of said arm, coupling a pressure transducer to said chamber for detecting the pressure increase in said chamber, and converting the pressure increase to a warning signal of said abnormal conditions.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00392848A US3853118A (en) | 1973-08-29 | 1973-08-29 | Swelling detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00392848A US3853118A (en) | 1973-08-29 | 1973-08-29 | Swelling detector |
Publications (1)
Publication Number | Publication Date |
---|---|
US3853118A true US3853118A (en) | 1974-12-10 |
Family
ID=23552256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00392848A Expired - Lifetime US3853118A (en) | 1973-08-29 | 1973-08-29 | Swelling detector |
Country Status (1)
Country | Link |
---|---|
US (1) | US3853118A (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3937212A (en) * | 1974-12-27 | 1976-02-10 | Nasa | Miniature muscle displacement transducer |
US4084430A (en) * | 1975-09-10 | 1978-04-18 | United Kingdom of Great Britain and Northern Ireland, The Secretary of State for Industry in Her Britannic Majesty's Government of the | Load measurement |
US4122837A (en) * | 1976-08-02 | 1978-10-31 | Leonard Loren W | Body surface contour deformation |
US4122838A (en) * | 1976-08-09 | 1978-10-31 | Leonard Loren W | Body surface contour deformation sensor |
FR2448339A1 (en) * | 1979-02-09 | 1980-09-05 | Medasonics Inc | PLETHYSMOGRAPH WITH GAUGE OF CONSTRAINTS |
US4747415A (en) * | 1986-06-16 | 1988-05-31 | Pierre Lavoisier | Method and device for measuring penile rigidity |
FR2631538A1 (en) * | 1986-06-16 | 1989-11-24 | Medi Force Inc | Method for measuring the rigidity of the penis and device for implementing this method |
US5087245A (en) * | 1989-03-13 | 1992-02-11 | Ivac Corporation | System and method for detecting abnormalities in intravascular infusion |
US5437610A (en) * | 1994-01-10 | 1995-08-01 | Spinal Cord Society | Extremity pump apparatus |
US5564435A (en) * | 1989-01-23 | 1996-10-15 | Steinberg; Bruce | Noninvasive compartment measurement device |
US5891065A (en) * | 1996-07-31 | 1999-04-06 | Spinal Cord Society | Mobile extremity pumping apparatus |
WO2007097635A1 (en) * | 2006-02-24 | 2007-08-30 | Carsten Sandholdt | A device for controlling and detecting hematomia or subepitelial haemorrage after percutaneous coronary intervention |
EP2012670A2 (en) * | 2006-04-19 | 2009-01-14 | ACIST Medical Systems, Inc. | Extravasation detection device |
WO2009125327A1 (en) * | 2008-04-10 | 2009-10-15 | Koninklijke Philips Electronics N.V. | Detection of fluid retention in a patient |
US20140378785A1 (en) * | 2011-01-10 | 2014-12-25 | Bioguidance Llc | System and method for patient monitoring |
US20180280612A1 (en) * | 2017-04-04 | 2018-10-04 | Webb Medical LLC | Early warning bandage for intravenous blowout or intravenous infiltration and method of monitoring an intravenous infusion site |
US10512431B2 (en) | 2014-12-02 | 2019-12-24 | Agency For Science, Technology Ano Research | Sensor patch and sensing device having the same |
WO2024023097A1 (en) * | 2022-07-25 | 2024-02-01 | Fresenius Kabi Deutschland Gmbh | Extravasation detection device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3520294A (en) * | 1968-01-26 | 1970-07-14 | Electro Medical System Inc | Labor contraction monitoring system |
US3533095A (en) * | 1969-01-02 | 1970-10-06 | James Collins | Inflatable pad with alarm |
US3582935A (en) * | 1968-10-24 | 1971-06-01 | Richard L Verhaeghe | Posture control and correcting device |
US3662743A (en) * | 1970-01-22 | 1972-05-16 | Corometrics Medical Systems In | Pressure transducer for catheter pressure measurement |
US3680386A (en) * | 1970-05-06 | 1972-08-01 | Utah Research & Dev Co Inc | Physical therapy diagnostic device |
US3782368A (en) * | 1971-05-24 | 1974-01-01 | Mc Donnell Douglas Corp | Transducer construction and system for measuring respiration |
-
1973
- 1973-08-29 US US00392848A patent/US3853118A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3520294A (en) * | 1968-01-26 | 1970-07-14 | Electro Medical System Inc | Labor contraction monitoring system |
US3582935A (en) * | 1968-10-24 | 1971-06-01 | Richard L Verhaeghe | Posture control and correcting device |
US3533095A (en) * | 1969-01-02 | 1970-10-06 | James Collins | Inflatable pad with alarm |
US3662743A (en) * | 1970-01-22 | 1972-05-16 | Corometrics Medical Systems In | Pressure transducer for catheter pressure measurement |
US3680386A (en) * | 1970-05-06 | 1972-08-01 | Utah Research & Dev Co Inc | Physical therapy diagnostic device |
US3782368A (en) * | 1971-05-24 | 1974-01-01 | Mc Donnell Douglas Corp | Transducer construction and system for measuring respiration |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3937212A (en) * | 1974-12-27 | 1976-02-10 | Nasa | Miniature muscle displacement transducer |
US4084430A (en) * | 1975-09-10 | 1978-04-18 | United Kingdom of Great Britain and Northern Ireland, The Secretary of State for Industry in Her Britannic Majesty's Government of the | Load measurement |
US4122837A (en) * | 1976-08-02 | 1978-10-31 | Leonard Loren W | Body surface contour deformation |
US4122838A (en) * | 1976-08-09 | 1978-10-31 | Leonard Loren W | Body surface contour deformation sensor |
FR2448339A1 (en) * | 1979-02-09 | 1980-09-05 | Medasonics Inc | PLETHYSMOGRAPH WITH GAUGE OF CONSTRAINTS |
US4747415A (en) * | 1986-06-16 | 1988-05-31 | Pierre Lavoisier | Method and device for measuring penile rigidity |
FR2631538A1 (en) * | 1986-06-16 | 1989-11-24 | Medi Force Inc | Method for measuring the rigidity of the penis and device for implementing this method |
US5564435A (en) * | 1989-01-23 | 1996-10-15 | Steinberg; Bruce | Noninvasive compartment measurement device |
US5087245A (en) * | 1989-03-13 | 1992-02-11 | Ivac Corporation | System and method for detecting abnormalities in intravascular infusion |
US5437610A (en) * | 1994-01-10 | 1995-08-01 | Spinal Cord Society | Extremity pump apparatus |
US5891065A (en) * | 1996-07-31 | 1999-04-06 | Spinal Cord Society | Mobile extremity pumping apparatus |
WO2007097635A1 (en) * | 2006-02-24 | 2007-08-30 | Carsten Sandholdt | A device for controlling and detecting hematomia or subepitelial haemorrage after percutaneous coronary intervention |
US8013750B2 (en) | 2006-02-24 | 2011-09-06 | Carsten Sandholdt | Device for detecting haematoma or subcutaneous haemorrhage after percutaneous coronary intervention |
EP2012670A2 (en) * | 2006-04-19 | 2009-01-14 | ACIST Medical Systems, Inc. | Extravasation detection device |
US20090204070A1 (en) * | 2006-04-19 | 2009-08-13 | Acist Medical Systems, Inc. | Extravasation detection device |
US8057406B2 (en) | 2006-04-19 | 2011-11-15 | Acist Medical Systems, Inc. | Extravasation detection device |
EP2012670B1 (en) * | 2006-04-19 | 2014-10-08 | ACIST Medical Systems, Inc. | Extravasation detection device |
WO2009125327A1 (en) * | 2008-04-10 | 2009-10-15 | Koninklijke Philips Electronics N.V. | Detection of fluid retention in a patient |
US20140378785A1 (en) * | 2011-01-10 | 2014-12-25 | Bioguidance Llc | System and method for patient monitoring |
US10993658B2 (en) * | 2011-01-10 | 2021-05-04 | Bodiguide Inc. | System and method for patient monitoring |
US10512431B2 (en) | 2014-12-02 | 2019-12-24 | Agency For Science, Technology Ano Research | Sensor patch and sensing device having the same |
US20180280612A1 (en) * | 2017-04-04 | 2018-10-04 | Webb Medical LLC | Early warning bandage for intravenous blowout or intravenous infiltration and method of monitoring an intravenous infusion site |
WO2024023097A1 (en) * | 2022-07-25 | 2024-02-01 | Fresenius Kabi Deutschland Gmbh | Extravasation detection device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3853118A (en) | Swelling detector | |
US5078682A (en) | Liquid transfusion apparatus | |
US4576181A (en) | Disposable pressure transducer apparatus for medical use | |
US5688244A (en) | Apparatus for monitoring infusion | |
US3727606A (en) | Apnea detection device | |
US5497787A (en) | Limb monitoring method and associated apparatus | |
US4949730A (en) | Monitoring device intended especially for parturition and its application | |
Strandness et al. | Ultrasonic velocity detector in the diagnosis of thrombophlebitis | |
US3149492A (en) | Fluid pressure gauge | |
US20170367654A1 (en) | Sensor patch and sensing device having the same | |
IL120881A0 (en) | Method and apparatus for the non-invasive continuous monitoring of arterial pulse waves | |
US6264612B1 (en) | Catheter with mechano-responsive element for sensing physiological conditions | |
Koski et al. | Frequency and reliability of alarms in the monitoring of cardiac postoperative patients | |
AU1050499A (en) | Method and device for monitoring a catheter unit | |
JPH0315732A (en) | Pressure measuring device | |
CN101959485A (en) | Device and method for monitoring an access to a patient, in particular a vascular access during an extracorporeal blood treatment | |
GB2176595A (en) | Pressure sensing device | |
US7801583B2 (en) | Extravasation detector | |
US3662743A (en) | Pressure transducer for catheter pressure measurement | |
US3473386A (en) | Fluid fitting mounted pressure transducer | |
US3315662A (en) | Oscillometric monitoring system for sphygmomanometers | |
AU2003288417B2 (en) | Extravasation detector | |
WO1991012765A1 (en) | Multiprobes with thermal diffusion flow monitor | |
JPH06149B2 (en) | Continuous measurement device for blood pressure and blood viscosity of arteriovenous shunt | |
Gardner et al. | Fundamentals of physiologic monitoring |