WO2004010871A1 - 穿刺用ユニット、穿刺用部材の取り外し具および穿刺装置 - Google Patents
穿刺用ユニット、穿刺用部材の取り外し具および穿刺装置 Download PDFInfo
- Publication number
- WO2004010871A1 WO2004010871A1 PCT/JP2003/009582 JP0309582W WO2004010871A1 WO 2004010871 A1 WO2004010871 A1 WO 2004010871A1 JP 0309582 W JP0309582 W JP 0309582W WO 2004010871 A1 WO2004010871 A1 WO 2004010871A1
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- Prior art keywords
- puncture
- housing
- lancet
- puncturing
- engagement
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15186—Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/150022—Source of blood for capillary blood or interstitial fluid
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150053—Details for enhanced collection of blood or interstitial fluid at the sample site, e.g. by applying compression, heat, vibration, ultrasound, suction or vacuum to tissue; for reduction of pain or discomfort; Skin piercing elements, e.g. blades, needles, lancets or canulas, with adjustable piercing speed
- A61B5/150061—Means for enhancing collection
- A61B5/150099—Means for enhancing collection by negative pressure, other than vacuum extraction into a syringe by pulling on the piston rod or into pre-evacuated tubes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
- A61B5/150229—Pumps for assisting the blood sampling
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150358—Strips for collecting blood, e.g. absorbent
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150412—Pointed piercing elements, e.g. needles, lancets for piercing the skin
- A61B5/150435—Specific design of proximal end
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150541—Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
- A61B5/150549—Protectors removed by rotational movement, e.g. torsion or screwing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150541—Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
- A61B5/150564—Protectors removed by pulling or pushing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150572—Pierceable protectors, e.g. shields, caps, sleeves or films, e.g. for hygienic purposes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/15058—Joining techniques used for protective means
- A61B5/150618—Integrally moulded protectors, e.g. protectors simultaneously moulded together with a further component, e.g. a hub, of the piercing element
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150694—Procedure for removing protection means at the time of piercing
- A61B5/150717—Procedure for removing protection means at the time of piercing manually removed
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150694—Procedure for removing protection means at the time of piercing
- A61B5/150725—Procedure for removing protection means at the time of piercing removal procedure linked to further actions, e.g. cocking of the piercing device, which indicate that the piercing device is used or tempered
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150885—Preventing re-use
- A61B5/1509—Preventing re-use by disrupting a seal, e.g. puncturing a piston seal
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150885—Preventing re-use
- A61B5/150916—Preventing re-use by blocking components, e.g. piston, driving device or fluid passageway
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15103—Piercing procedure
- A61B5/15107—Piercing being assisted by a triggering mechanism
- A61B5/15113—Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15115—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
- A61B5/15117—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15186—Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
- A61B5/15188—Constructional features of reusable driving devices
- A61B5/1519—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for propelling the piercing unit
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15186—Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
- A61B5/15188—Constructional features of reusable driving devices
- A61B5/15192—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for retracting the lancet unit into the driving device housing
- A61B5/15194—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for retracting the lancet unit into the driving device housing fully automatically retracted, i.e. the retraction does not require a deliberate action by the user, e.g. by terminating the contact with the patient's skin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/157—Devices characterised by integrated means for measuring characteristics of blood
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/1486—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using enzyme electrodes, e.g. with immobilised oxidase
Definitions
- the present invention relates to a puncture device used for collecting a sample such as blood, a puncture cut unit formed by knitting a replacement part used by being attached to the puncture device, and a puncture member attached to the puncture device.
- the present invention relates to a puncture member removal tool used for removing a puncture member.
- a puncture device is used when diabetic patients take blood samples to measure blood sugar levels.
- This puncture device generally has a structure in which a lancet holder is provided so as to be able to reciprocate in a cylindrical housing having an open end.
- a disposable lancet is mounted on the lancet holder.
- the lancet holder and the lancet are advanced toward the tip of the housing.
- the needle of the lancet pierces the skin of the human body. This causes bleeding on the skin and blood can be collected.
- a conventional example of a lancet is described in, for example, Japanese Utility Model Laid-Open Publication No. 6-38909, which is shown in FIGS. 26A, 26B, 27A, and 27B. .
- a lancet 9A shown in FIG. 26A includes a screw portion 94 and a needle 91, and a cap 9OA covering the needle 91 is connected to the lancet 9A.
- the screw portion 94 can be screwed into the screw hole 82 at the tip of the lancet holder 81A by inserting and rotating the screw portion 94 into the housing 80 of the puncture device 8.
- the lancet 9A can be attached to the lancet holder 81A, and thereafter, the cap 9OA can be separated from the lancet 9A.
- the cap 9 OA is turned in the opposite direction, inserted into the housing 80, and the hex hole 92 formed in the cap 9 OA is inserted into the lancet 9. A hexagonal shape And rotated. By this operation, the screwed state of the lancet 9A and the lancet holder 81A is released, and the lancet 9A can be removed from the lancet holder 81A.
- the user does not need to directly touch the needle 91 of the lancet 9A when attaching the lancet 9A to the puncture device 8 and removing the lancet 9A from the puncture device 8. Therefore, it is possible to eliminate the risk that the needle 91 sticks to the user's hand or that blood adhered to the needle 91 due to puncture sticks to the user's hand.
- a lancet 9B shown in FIG. 27A has a projection 93 formed on the peripheral surface thereof.
- the projection 93 When the projection 93 is engaged with the substantially L-shaped groove 83 formed in the lancet holder 81B of the lancing device, the lancet 9B is retained in the lancet holder 81B in a locking state. You. After holding the lancet 9B in the lancet holder 81B, the cap 90B can be separated from the lancet 9B as shown in FIG. 27B.
- this cap 90B is fitted around the lancet 9B with a substantially cross-shaped section and rotated, the projection 93 can be removed from the groove 83 and the lancet 9B can be removed from the lancet holder 81B. it can. In such a configuration, the user does not need to directly touch the needle 91, and the same advantages as those shown in FIGS. 26A and 26B can be obtained.
- the cap 9OA serves as a tool for rotating the lancet 9A, it does not have a function to positively and surely hold the lancet 9A. Therefore, for example, the lancet 9A may not be able to escape from the screw hole 82 even if the screws of the lancet 9A and the lancet holder 81A are loosened. Also, while removing the lancet 9A with the lancet 9A fitted to one end of the cap 9OA, the lancet 9A is closed. 9 In some cases, it was out of the office automation. For this reason, there were cases where the lancet 9A could not be properly taken out of the housing 80 simply by using the cap 9OA.
- An object of the present invention is to provide a puncture cut, a puncture member removal tool, and a puncture device that can solve or suppress the above-mentioned problems.
- a puncture unit provided by the first aspect of the present invention is a puncture member for use by being attached to a puncture device in which a movable member is reciprocally provided in a housing having an opening at a distal end. And a support member for supporting the puncture member in a separable manner.
- a puncture unit, wherein the puncture member is capable of being pulled out from the movable member toward the tip of the housing.
- the housing can be fitted and mounted on the movable member, and when mounted on the movable member, has a surface for engagement facing the rear direction of the housing.
- the puncture member has a needle and a body that supports the needle.
- the engaging surface is provided by forming a concave or convex step on the outer peripheral surface of the body.
- the engaging means extends in a first direction in which the needle of the puncture member extends, and a claw projecting in a second direction intersecting the first direction of the bracket is formed at a distal end portion. Includes one engagement projection.
- the puncturing unit according to the present invention includes a plurality of engaging projections, and the plurality of engaging projections are provided when the puncturing member is mounted on the movable member. Can be engaged with the engaging surface so as to sandwich ing.
- the step portion of the body portion has a flange shape, and an interval between the claws of the plurality of engagement projections is smaller than an outer diameter or a width of the step portion.
- the support member includes a cap that covers the needle of the puncture member and supports the puncture member in a separable manner.
- a boundary portion between the body portion and the cap has a structure in which stress is easily concentrated as compared with other portions of the body portion and the cap.
- the support member has a tubular portion that can be slidably fitted to the distal end of the housing, and the puncturing member and the engaging means are disposed in the tubular portion.
- the “cylindrical portion” is not limited to a cylindrical shape, and may be, for example, a rectangular cylindrical shape (the same applies hereinafter).
- the puncturing unit according to the present invention further includes: an analyzing component; and an additional engaging means.
- the analyzing component includes a puncturing member for attaching the puncturing member to the movable member.
- the analysis component is detachably supported by the support member so that the analysis component can be attached to a predetermined location of the puncture device.
- the engagement component faces the rear of the housing.
- the additional engagement means is provided in the housing in a state where the analysis component is separated from the support member and is mounted at a predetermined position of the puncture device. When it is inserted from the part, it is configured to engage with the engagement surface of the analysis component.
- the additional engaging means extends in a first direction in which the needle of the puncture member extends, and a claw projecting in a second direction intersecting the first direction of the bracket is formed at the tip. Included additional engagement projections.
- the support member has a tubular portion that can be slidably fitted to the distal end of the housing, and the puncture member, the analysis component, the engagement means, And the additional engagement means are disposed in the tubular portion.
- the engaging means and the additional engaging means are provided so as to enter into the housing together by slidingly fitting the cylindrical portion to a tip of the housing. .
- the support member includes a partition wall that partitions the inside of the tubular portion into first and second chambers adjacent in the axial direction of the tubular portion, and the cap, the puncture member,
- the analysis component is located in the first room, and the first and second engagement means are located in the second room.
- the puncture unit according to the present invention includes a lid member that seals the first chamber.
- the support member has a chamber for accommodating the cap, the puncture member, and the analysis component, and further includes the engagement means and the additional engagement means in the bracket room. Is provided.
- the puncture member removal tool provided by the second aspect of the present invention is a puncture device in which a movable member is reciprocally provided in a housing having an opening at a tip thereof.
- the tool for removing a puncture member has a tubular portion and further includes a support member that supports the engaging means, wherein the tubular portion is provided on the housing.
- the engagement means is configured to engage with the engagement surface of the puncturing member by being slide-fitted to the distal end portion.
- the tool for removing a puncture member includes an additional engagement means provided on the support member, and the additional engagement means is provided at a predetermined position of the puncture device for analysis.
- the additional engagement means is provided at a predetermined position of the puncture device for analysis.
- a puncturing device provided by the third aspect of the present invention is a housing having an opening at a distal end, a reciprocatingly provided inside the housing, and a puncturing member fitted and mountable at the distal end.
- a movable member having the structure described above; an urging force applying means for urging the movable member toward the front end of the housing; and the movable member having a biasing force against the urging force of the urging force applying means.
- Latching means for latching the movable member when pushed into the back by a predetermined dimension or more; and latch releasing means for releasing the latching state of the movable member by the latching means by performing a certain operation.
- the puncture device according to claim 1, further comprising a stopper capable of preventing the movable member from being pushed into the interior of the housing by a predetermined dimension or more.
- the stopper is capable of protruding and retracting in a moving path of the movable member or a linking member interlocked with the movable member, and being positioned in the moving path, the stopper is configured to restrict retreat of the movable member.
- the movable member or the interlocking member can be contacted.
- a holding portion is provided in the housing, to which the analysis component can be removably mounted.
- FIG. 1 is a partially cutaway perspective view showing an example of a puncture unit according to the present invention.
- FIG. 2 is a side sectional view of FIG.
- FIG. 3A is a perspective view showing an example of a lancet with a cap, which is a component of the puncturing unit of FIG. 1, and FIG. 3B is a cross-sectional view thereof.
- FIG. 4 is a perspective view showing an example of a sensor holder which is a component of the puncturing unit of FIG.
- FIG. 5A is a perspective view showing an example of a sensor held by the sensor holder of FIG. 4, and FIG. 5B is an exploded perspective view thereof.
- FIG. 6 is an exploded partial cross-sectional view of the puncture unit of FIG.
- FIG. 7 is a cross-sectional view showing an example of the puncture device according to the present invention.
- FIG. 8 is an enlarged sectional view of a main part of FIG.
- FIG. 9 is an explanatory view showing a lancet holder of the puncture device of FIG. 7 and a slip for guiding the lancet holder.
- FIGS. 10A to 10E are explanatory diagrams showing an operation of guiding the projection of the lancet holder.
- FIG. 11 is a fragmentary sectional view showing the operation of attaching the lancet and the sensor holder to the puncture device.
- FIG. 12 is a fragmentary sectional view showing the operation of attaching the lancet and the sensor holder to the puncture device.
- FIG. 13 is an enlarged sectional view of a main part of FIG.
- FIG. 14 is a cross-sectional view of relevant parts showing a state where the lancet and the sensor holder have been mounted on the puncture device.
- FIG. 15 is a cross-sectional view showing an example of use of the puncture device.
- FIG. 16 is a sectional view showing an example of use of the puncture device.
- FIG. 17 is a fragmentary cross-sectional view showing the operation when removing the lancet and the sensor holder from the puncture device.
- FIG. 18 is a fragmentary cross-sectional view showing the operation when removing the lancet and the sensor holder from the puncture device.
- FIG. 19 is a fragmentary cross-sectional view showing a state where the operation of removing the lancet and the sensor holder from the puncture device has been completed.
- FIG. 2OA is a sectional view showing another example of the puncturing unit according to the present invention
- FIG. 2OB is a bottom view thereof.
- FIG. 21 is a cross-sectional view showing another example of the puncturing unit according to the present invention.
- FIG. 22A is a cross-sectional view showing another example of the puncturing unit according to the present invention
- FIG. 22B is a cross-sectional view showing the state of use.
- FIG. 23A is a cross-sectional view showing an example of a puncturing member removal tool according to the present invention
- FIG. 23B is a cross-sectional view showing an example of a puncturing unit used corresponding to the removal tool. is there.
- FIGS. 24A to 24C are main part explanatory diagrams showing another example of the engaging step provided on the puncturing member and the engaging projections engaging with the step.
- FIG. 25 is a cross-sectional view of a principal part showing another example of a fitting and mounting structure for a puncturing member.
- FIGS. 26A and 26B are explanatory diagrams showing an example of a conventional technique.
- FIGS. 27A and 27B are explanatory diagrams showing another example of the conventional technology. BEST MODE FOR CARRYING OUT THE INVENTION
- 1 to 6 show an example of a puncturing unit according to the present invention.
- the puncture unit U of the present embodiment includes a case 1, a lancet 2, a cap 29, a sensor holder 3, a pair of first engagement projections 19A, And a second engagement projection 19B.
- the case 1 is made of, for example, a synthetic resin, and has a substantially cylindrical tubular portion 10 having first and second ends 10 a and 10 b formed with openings 12 A and 12 B, respectively. And a partition wall 11 provided in the cylindrical portion 10.
- the interior of case 1 is partitioned into first and second chambers 18 A and 18 B by partition wall 11.
- a lancet 2, a cap 29, and a sensor holder 3 are arranged in the first chamber 18A.
- the second chamber 18B is provided with a pair of first engaging projections 19A and a second engaging projection 19B.
- the first and second ends 10 a and 10 b of the case 1 are formed.
- the opening 12A is closed by a film 14 as a lid, and the first chamber 18A is sealed.
- the film 14 for example, an aluminum foil or a laminate of an aluminum foil and a synthetic resin film is used.
- the lancet 2 has a body portion 20 made of synthetic resin and a metal needle 21 held by the body portion 20.
- the tip of the needle 21 protrudes from the body 20.
- the body part 20 is The outer periphery of the body portion 20 has a plurality of extending portions extending in the same direction as the concave portion 23 and the needle 21 on the outer peripheral surface of the body portion 20. Strip ribs 22 are formed.
- a flange-shaped engaging step portion 24 is also formed on the outer periphery of the lower portion of the body portion 20.
- the engaging step 24 is used when the lancet 2 is detached from the lancet holder 5, and as shown in FIG. 3A and FIG. It has a surface 24a and a downwardly inclined surface 24b.
- the surface 24a corresponds to an example of the engagement surface in the present invention.
- the cap 29 is resin-molded integrally with the body portion 20 so as to cover the needle 21, and extends in the same direction as the needle 21 on the tip side (lower end side) of the body portion 20.
- the boundary portion 28 between the cap 29 and the body portion 20 is constricted so that they can be relatively easily separated, and has a smaller diameter than the lancet 2 and other portions of the cap 29. I have. As will be described later, detachment of the cap 29 from the lancet 2 is performed by breaking the boundary portion 28 by being twisted.
- a hole 29 a is formed at the lower end of the cap 29. As shown in FIG. 6, the hole 29 a can be fitted to a projection 15 projecting from the partition wall 11 of the case 1. With this fitting, the cap 29 is held upright in the case 1. However, in the present invention, contrary to the above structure, these are fitted by forming a concave portion on the partition wall 11 of the case 1 and forming a projection on the bottom of the cap 29. It can also be configured.
- the cap 29 is adhered to the case 1 using an adhesive or the like.
- the cap 29 and the case 1 support the lancet 2, and the cap 29 and the case 1 correspond to specific examples of the support member according to the present invention. It is also possible to integrally mold the cap 29 and the case 1 with resin.
- the needle 21 of the lancet 2 has been sterilized by gamma irradiation or the like before being incorporated into the case 1.
- the first chamber 18A also contains a desiccant (not shown) that helps protect the quality of the sensor S described below.
- the sensor holder 3 corresponds to an example of the analysis component according to the present invention.
- the sensor holder 3 is made of a synthetic resin, and as shown in FIG. It has a wall 32 and a side wall 31 connected to the wall 32 and having an arc-shaped cross section.
- the side wall portion 31 is formed with an engagement step 34 used to remove the sensor holder 3 when the sensor holder 3 is mounted on a puncturing device A described later.
- the engaging step 34 has an upwardly substantially horizontal surface 34a and a downwardly inclined surface 34b in the posture of the sensor holder 3 shown in FIG.
- the bottom surface portion of the main body wall portion 32 of the sensor holder 3 is formed, for example, in an inclined shape, and the sensor S is bonded to this portion.
- the sensor S is chip-shaped, and has a configuration as shown in FIGS. 5A and 5B, for example.
- the sensor S electrically detects a reagent 39a containing an enzyme that causes a certain reaction (for example, an acid reaction) with glucose in blood on the surface of the substrate 39, and the degree of the reaction.
- a pair of electrodes 39 b are provided on the substrate 390.
- a pair of spacers 391 arranged at intervals and a cover 392 covering the pair of spacers 391 are also laminated and provided.
- capillaries 393 are formed.
- the substrate 39, each spacer 39 1, and the cover 39 2 are formed with a series of recesses 3 94 serving as blood introduction ports. When blood adheres to the concave portion 394, the blood proceeds through the capillary 393 by capillary action and is guided to the reagent 39a.
- a pair of through holes 32 a and a pair of holding walls 32 b are formed in the main body wall 32 of the sensor holder 3.
- the pair of through holes 32 a is a portion for allowing the pair of measurement probes 62 of the puncture device A to be described later to come into contact with the pair of electrodes 39 b of the sensor S by passing through the pair of measurement probes 62. It is.
- the pair of holding wall portions 32b can be fitted to the lower portion 29b of the cap 29 so as to be sandwiched from both sides thereof.
- the lower portion 29b of the cap 29 has, for example, a columnar shape, whereas the pair of holding walls 32b has a substantially arcuate shape corresponding to the outer peripheral surface thereof. As shown in FIGS.
- the sensor holder 3 has a case 29 via the cap 29 because the pair of holding walls 32b are fitted to the lower part of the cap 29. It is assembled in one. However, the sensor holder 3 can be detached from the cap 29 by sliding over the cap 29.
- Each of the pair of first engagement projections 19 A and second engagement projections 19 B is resin-molded integrally with the case 1 so as to be connected to the partition wall 11. It extends in the axial direction of 10. However, these can be bent and deformed with an elastic restoring force in a direction intersecting with the axial direction of the cylindrical portion 10.
- claw portions 19a and 19b projecting in the direction intersecting with the axial length direction are formed at their tip portions. As will be described later with reference to FIG.
- the first engagement projection 19A is engaged with the lancet held by the puncture device A.
- the claw portion 19a is brought into contact with and engaged with the surface 24a of the step portion 24 for engagement of the engaging member 24 of FIG.
- the spacing between the claws 19 a of the pair of first engaging projections 19 A is slightly smaller than the outer diameter of the engaging step 24 of the lancet 2.
- the second engagement protrusion 19 B is provided with a surface 3 of the engagement step portion 3 4 of the sensor holder 3 held by the puncture device A. The arrangement and the size are such that the claw 19b contacts and engages with 4a.
- FIG. 7 and 8 show an example of a puncture device according to the present invention.
- the puncture device A of the present embodiment includes a housing 4, a lancet holder 5, a latch member 59, and a stocking mechanism 79, which are disposed in the housing 4. I have.
- the housing 4 is formed by connecting three sleeves 40 a to 40 c in series, and is fixed to the outer case 70.
- the distal end (lower end) of the sleeve 40a is a portion for making contact with the skin of the human body, and forms an opening 41.
- the case 40 of the puncturing unit U can be slid into the sleep 40a from either side of the first and second end portions 10a and 10b.
- a concave groove 42 into which the projections 13A and 13B of the case 1 can be fitted is formed extending in the axial direction of the sleeve 40a. The case 1 is prevented from rotating when the sleeve 1 is externally fitted to the sleeve 40a.
- case 1 sleeps when lancet 2 and sensor holder 3 of puncturing device U are attached to puncturing device A, and when lancet 2 and sensor holder 3 attached are removed. It is designed to be fitted with a slide.
- the holding portion 6 is provided in the sleeve 40a.
- the holding portion 6 is a portion for holding the sensor holder 3 of the puncturing unit U, and is configured by fixing a synthetic resin attachment 60 to the inner surface of the sleeve 40a.
- Attachment 60 has first and second wall portions 60b, 60c that form void portion 60a.
- the gap 60a is a portion for allowing the side wall 31 of the sensor holder 3 to enter from below, as shown in FIGS.
- the holding part 6 is provided with a panel 61, and when the side wall part 31 of the sensor holder 3 enters into the gap ⁇ 60a, the spring 61 turns the side wall part 31 into the second wall part. It exerts a resilient force F that pushes toward 60 c, that is, toward the center of the sleeve 40 a, whereby the sensor holder 3 can be held.
- the width si of the gap 60 a is larger than the thickness t 1 of the side wall 31 of the sensor holder 3.
- a gap is formed between the side wall 31 and the second wall 60c. 6 0 a 'occurs.
- the resilient force F of the spring 61 causes the side wall 31 of the sensor holder 3 to move to the second wall 60. c is pressed against one side.
- a pair of measurement probes 62 are held by the second wall portion 60c.
- the pair of measurement probes 62 are for contacting the pair of electrodes 39 b of the sensor S, and extend in the axial direction of the housing 4.
- the distal end 62 a of each measurement probe 62 is extendable and contractable, and extends downward by the resilient force of an appropriate panel (not shown) when the sensor holder 3 is not mounted on the puncture device A.
- an appropriate panel not shown
- FIGS. 12 to 14 when the sensor holder 3 is mounted on the holding portion 6, the distal end portion 62a is pushed upward by the sensor S and contracts. ing.
- a control circuit 78 electrically connected to the pair of measurement probes 62 is provided inside the outer case 70.
- the control circuit 78 is composed of, for example, a CPU and a memory attached to the CPU, and controls the blood introduced into the reagent 39a based on the current value detected through the pair of measurement probes 62.
- the dal It is possible to calculate the course concentration.
- the lancet holder 5 is a member that reciprocates while holding the lancet 2 and corresponds to an example of a movable member according to the present invention.
- the lancet holder 5 is rotatably fitted in the sleeve 40b so as to be slidable in the axial direction thereof.
- a recess 50 is formed at the lower end of the lancet holder 5, and the lancet 2 is fitted and held in the lancet holder 5 by pushing the body 20 of the lancet 2 into the recess 50. It is possible.
- Means for ensuring that the lancet 2 is fitted and held include, for example, forming one or more slits extending in the axial direction at the lower end of the lancet holder 5 so that the lower end of the lancet holder 5 is
- a means is used that can be expanded and contracted in the radial direction so that when the body 20 is fitted into the recess 50, the lower end of the lancet holder 5 tightens the body 20 with an appropriate elasticity. be able to.
- the lancet nose rod 5 is provided with a portion that engages with the concave portion 23 of the body portion 20 and is caught, and the body portion 20 easily comes out of the concave portion 50 by the catching action. Means for preventing the coming off may be adopted.
- a plurality of concave grooves into which the plurality of ribs 22 of the body portion 20 can be fitted are formed in the concave portion 50 of the lancet holder 5.
- the relative rotation between the body portion 20 and the lancet holder 5 is restricted.
- a plurality of projections 52 are provided at equal angular intervals on the peripheral surface of the head 51 of the lancet holder 5, and these projections 52 are formed inside the sleeve 40b.
- the first and second guide grooves 43A and 43B of a plurality of sections formed on the wall are fitted and guided.
- the first guide groove 4 3 A is a groove for rotating the lancet holder 5 when the lancet holder 5 is pushed upward by the lancet 2 of the puncturing unit U, and is provided on the shaft of the sleeve 40 b. It is inclined to the long direction.
- the second guide groove 43B is used to move these straight guides when the lancet 2 and the lancet holder 5 are advanced toward the tip of the housing 4 so that the lancet 2 pierces the skin of the human body. It is a groove to perform, and extends linearly in the axial direction of the sleep 4 Ob.
- the plurality of first and second guide grooves 4 3 A, 4 When a part of 3B is developed in a plane, the shapes are as shown in FIG.
- the latch member 59 is connected to the upper part of the lancet holder 5 and slidably accommodated in the housing 4.
- a push 58 is non-rotatably fitted into the lower end of the latch member 59, and a plurality of projections 53 protruding from the upper surface of the lancet holder 5 rotate in the bush 58. Inserted as possible.
- the latch member 59 is not rotated accordingly.
- the upper end of each projection 53 is engaged with the upper end of the bush 58 so as not to come off, whereby the lancet holder 5 and the latch member 59 are connected.
- a pair of claws 59 a is formed on the upper part of the latch member 59.
- the pair of claws 59 a are used to lock one end edge of a pair of cutout holes 44 provided in the sleeve 40 c. As described later, the lancet holder 5 and the latch When the switch member 59 is pushed upward by the lancet 2 of the puncture unit U, the above-described locking is performed.
- a pusher 71 for releasing the latch and an operation cap 72 connected thereto are mounted on the upper part of the sleeve 40c.
- a panel 73 is provided between the pusher 71 and the intermediate wall 59 b of the latch member 59.
- the spring 73 is, for example, a compression coil spring.
- the operating cap 72 is slidable in the axial direction with respect to the sleeve 40c.
- a stopper mechanism 79 includes a pin-shaped or plate-shaped stopper 79 a, and a driving unit 79 that reciprocates the stono 79 a in the direction of an arrow N 6 intersecting with the axial direction of the housing 4. b.
- the drive unit 79b is configured using a relatively small actuator using, for example, electromagnetic force.
- the position where the stopper 79a appears in the above-mentioned reciprocating movement path is, as shown in FIG. 7, when the latch member 59 and the lancet holder 5 are moving downward, from the upper end of the latch member 59. Is located above and below the lower edge of the pair of cutout holes 44 of the housing 4. When the upper end of the latch member 59 comes into contact with the stopper 79a, the further rise of the latch member 59 is prevented.
- the puncturing unit U has the first chamber 18 A sealed with the film 14 before use, and thus the reagent 39 a of the sensor S is used. Is not exposed to moisture, and there is no problem that causes quality deterioration in a short period of time.
- the needle 21 of the lancet 2 is covered with a cap 29, and since the cap 29 is formed integrally with the body 20 of the lancet 2, excellent sealing performance is obtained. Before the lancet 2 is assembled into the case 1, the sterility can be maintained properly.
- the puncture unit U is formed by attaching a lancet 2 having a cap 29 in a case 1 and then attaching a sensor holder 3 to a cap 29, and then opening the opening 1 2 A of the case 1 by a film 14. It can be easily manufactured by plugging.
- the lancet 2 can be assembled by fitting the hole 29 a of the cap 29 into the protrusion 15 of the case 1, and the sensor holder 3 can be assembled by the pair of holding walls 3 2 b So that it can be The manufacture of the stab unit u is further facilitated, and the manufacturing cost can be reduced.
- this puncturing unit U lancet 2 and sensor holder 3 are placed in case 1! Since there is no need to use special special parts for supporting the puncture unit, the entire structure is simplified, and the manufacturing cost of the puncturing unit U can be reduced.
- the puncture unit U To use the puncture unit U, open the opening 12 A of the case 1 by breaking or peeling off the film 14, and then, as shown in FIG. 11, the first end of the case 1 The part closer to the part 10a is externally fitted to the sleeve 40a of the puncture device A.
- the body portion 20 of the lancet 2 can be fitted into the concave portion 50 of the lancet holder 5 and held by the lancet holder 5.
- the stopper 79a When mounting the lancet 2, the stopper 79a is retracted from the housing 4.
- the case 1 When the case 1 is pushed upward as indicated by the arrow N1, the lancet 2 pushes the lancet holder 5 upward against the elasticity of the panel 73.
- the lancet holder 5 and the body portion 20 of the lancet 2 rotate in the direction of the arrow N2, and due to this rotation, the boundary portion 28 between the lancet 2 and the cap 29 is twisted and broken. .
- the projection 52 of the lancet holder 5 is initially located in the second guide groove 43B.
- the projection 52 first moves toward the first guide groove 43A as shown by an arrow N3 in FIG. 10B.
- one of the tip of each lip 22 of the body portion 20 and each of the concave grooves in the concave portion 50 is spirally inclined so that the body portion 20 is in the concave portion 50. This can be realized by a configuration in which the body portion 20 generates a force for rotating the lancet holder 5 in the direction of the arrow N3 when the fitting is performed.
- each measurement probe 62 is pushed upward by the sensor S, but contacts the electrode 39 b of the sensor S while exerting a repulsive force against the pushing. Therefore, the electrical connection between each measurement probe 62 and each electrode 39b is ensured.
- case 1 is pulled downward from the sleeve 40a.
- the lancet 2 and the cap 29 are appropriately separated. .
- the lancet 2 is mounted on the lancet holder 5 with the needle 21 exposed.
- the cap 29 slides with respect to the sensor holder 3 as the case 1 descends, and is pulled out below the sensor holder 3. Therefore, the sensor holder 3 is mounted on the holding unit 6 in a state where the sensor holder 3 is separated from the cap 29.
- the lancet to the lancet hook / ladder 5 can be obtained simply by sliding the case 1 into the sleeve 40a by an appropriate amount and then removing the case. 2 mounting, separation of cap 2 9 from lancet 2, mounting of sensor holder 3 to holder 6, cap 2 from sensor holder 3 Separation of 9 and latching of the latch member 59 are performed, which is convenient. In case 1, cap 29 remains fixed.
- the side wall 31 of the sensor holder 3 is pressed against the second wall 60 c by the developing force F of the panel 61. That is, the sensor holder 3 shifts toward the center of the sleeve 40a (in the direction of the arrow N4 in FIG. 14) by the dimension of the gap 60a 'shown in FIG.
- the sensor holder 3 is displaced in this way, the sensor S can be brought closer to the puncturing position by the lancet 2 by that much, and the advantages described later are obtained.
- puncturing can be performed.
- the distal end portion of sleeve 40a of puncturing device A is brought into contact with skin 99 of a human body to be punctured.
- the operation cap 72 is pressed, and the pusher 71 is advanced.
- each claw 59 a comes off one end edge of each notch hole 44, and the resilient force of the panel 73 causes the latch member 59 and the lancet holder 5 to descend and advance.
- the needle 2 1 of the lancet 2 pierces the skin 9 9.
- puncturing apparatus A is provided with a pump or a pump mechanism, and is configured to generate a negative pressure in sleeve 40a when performing puncturing.
- small comb amount piercing needle 2 1 of the lancet 2 which is advantageous in reducing the damage of skin 9 9.
- Blood coming out of the skin 99 adheres to the sensor S and is led to the reagent 39a of the sensor S.
- the sensor holder 3 is close to the center of the sleeve 40a, that is, close to the puncturing position, it is ensured that blood adheres to a predetermined portion of the sensor S. Is done.
- the sensor holder 3 As a means for arranging the sensor holder 3 near the center of the sleeve 40a, for example, in the configuration of the puncturing unit U shown in FIGS. 1 and 2, the sensor holder 3 is attached near the center of the case 1 from the beginning. It is conceivable to keep it. However, since the force puncturing unit U has a structure in which the sensor holder 3 is supported by the cap 29, if the sensor holder 3 is to be arranged near the center of the case 1, the cap 29 is made thin. There is a need to. On the other hand, if the cap 29 is too thin, it may be difficult to securely support the sensor holder 3 on the cap 29 due to insufficient mechanical strength. On the other hand, if the sensor holder 3 is shifted toward the center of the sleeve 40a when the sensor holder 3 is mounted on the puncture device A as in the present embodiment, the above-described fear can be appropriately eliminated. Can be.
- Puncturing apparatus A is configured to display the calculated value on an image display unit (not shown) configured using, for example, a liquid crystal display.
- the portions 19a and 19b can reach a position higher than the engagement step portions 24 and 34, and can be engaged with the engagement step portions 24 and 34.
- Surface 24b , 34b are inclined surfaces, so that the above-mentioned engagement operation can be performed more smoothly. It is more preferable that the end is formed as an inclined surface as shown in the figure, in order to facilitate the above-mentioned engagement.
- the lancet holder 5 When the above engagement is performed, the lancet holder 5 temporarily receives an upward pressing force from the first engagement projection 19A.
- the horn, 779a is made to protrude into the inside of the housing 4. This prevents the latch member 59 from rising, so that the latch member 59 can be prevented from being unnecessarily latched. Also, if the latch member 59 is prevented from rising in this way, the lancet holder 5 must be maintained at a constant height when the first engagement projection 19A is raised. Therefore, the engagement operation of the first engagement projection 19A with the engagement step portion 24 is ensured.
- the case 1 is pulled out of the housing 4 below.
- the first and second engagement projections 19 A and 19 B are engaged with the lancet 2 and the sensor holder 3, so that by moving the case 1 downward, The lancet 2 and the sensor holder 3 can be removed from the lancet holder 5 and the holder 6.
- the following effects can be obtained.
- the pull-out direction is downward, whereas the claw portion 19a of the first engagement projection 19A is attached to the engagement step ⁇ 15 2 4 Engage with the upward facing surface 24a. Therefore, the engagement between the claw portion 19a and the surface 24a is ensured, and unlike the above-described prior art, the lancet 2 can be reliably captured by the first engagement projection 19A, and the lancet 19 The removal of 2 is ensured. Since the pair of engagement projections 19A are arranged so as to sandwich the lancet 2 from both sides thereof, the engagement is more reliable.
- the work of removing the lancet 2 and the sensor holder 3 described above can be performed by a so-called one-touch operation in which the case 1 is simply fitted to and detached from the tip of the housing 4, similarly to the work of mounting the lancet 2 and the sensor holder 3. Therefore, the work is easy. Since the used lancet 2 and sensor holder 3 can be accommodated in the case 1, there is no need for the user to touch the lancet 2 and the sensor holder 3. Therefore, their disposal can be performed sanitarily. Since the cap 29 is still contained in the case 1, these can be easily and collectively disposed of. Puncturing unit U of the present embodiment is used for both the purpose of attaching lancet 2 and sensor holder 3 to puncturing device A, and the purpose of removing lancet 2 and sensor holder 3 from puncturing device A. This is also convenient in this regard.
- FIG. 20 to FIG. 25 show another embodiment of the present invention.
- elements that are the same as or similar to those in the above embodiment are denoted by the same reference numerals as those in the above embodiment.
- the case 1A is formed into an open end, and the lancet 2, cap 29, and sensor holder are formed without partitioning the inside of the case 1A. 3.
- a pair of first engaging projections 19A and a second engaging projection 19B are provided in the case 1A.
- case 1A is formed in, for example, a substantially elliptical shape, and lancet 2 and The step 29 and the sensor holder 3 are provided closer to one end in the longitudinal direction than the center of the case 1A.
- the first and second engagement projections 19A, 19B are provided closer to the other longitudinal end than the center of the case 1A.
- Convex portions 13A and 13B are formed on the inner surface of the arc-shaped portion at both ends in the longitudinal direction of case 1A.
- the lancet 2 and the sensor holder 3 are punctured when the sleeve 1 a of the puncture device A shown in FIG. Can be attached to device A. Further, when the portion near the other end in the longitudinal direction of case 1A is fitted to sleeve 40a of puncturing device A and then pulled out, lancet 2 and sensor holder 3 can be removed from puncturing device A.
- the case 1A is fitted by fitting one of the convex portions 13A and 13B into the concave groove 42 formed in the sleeve 40a. A can be prevented from rotating.
- each part in case 1A can be accurately guided to a predetermined part of the puncture device corresponding to the part.
- a configuration in which predetermined parts or portions are provided in one room of the case may be employed. This eliminates the need to turn over the case when removing the lancet from the lancing device after the lancet has been mounted.
- the puncturing unit Ub shown in FIG. 21 parts or portions corresponding to the sensor holder 3 and the second engagement projection 19 B of the previous embodiment are not provided, and the case 1 has A lancet 2, a cap 29, and a pair of first engagement projections 19A are provided.
- Some puncture devices have a simple structure that has only a function of causing bleeding by piercing a needle of a puncture member into, for example, the skin of a human body. Therefore, in the present invention, in order to correspond to the puncturing apparatus having such a configuration, the puncturing unit Ub of the present embodiment does not have an analysis component such as the sensor holder 3 or a component having no attaching / detaching function. It can also be configured as
- a pair of first engaging projections 19A are provided near cap 29 so as to sandwich cap 29. run
- the cap 29 is detached from the case 1 by, for example, breaking the projection 15.
- the first engaging projection 19A can be provided so as to be close to the cap 29 and the lancet 2, so that the puncturing described above is performed.
- the size of the case can be reduced compared to the unit U, Ua, Ub.
- the puncture member removal tool B shown in FIG. 23A includes a pair of first engagement projections 19A and second engagement projections 19B in a case 1B having a convex portion 13A. Are provided.
- the components corresponding to the lancet 2 and the sensor holder 3 are not incorporated in the case 1B.
- the detaching tool B having such a configuration is prepared separately from the puncturing unit Ud as shown in FIG. 23B, for example, and the lancet 2 and the sensor holder attached to the puncturing apparatus using the puncturing unit Ud. 3 can be suitably used for removing from the puncture device. At the time of its removal, the same effect as described for the puncture unit U shown in FIGS. 1 and 2 can be obtained.
- the present invention it is also possible to configure a removal tool used only for removing a predetermined component from the puncture device. Further, in the case of constituting as a detaching tool, it is also possible to adopt a constitution having only the detaching function of the puncturing member without the second engaging projection.
- FIGS. 24A to 24C show another configuration example of the engaging step 24 provided on the lancet 2 and a pair of first engaging projections 19A for engaging with the step 24.
- the engagement step portion 24 of the lancet 2 is formed in a concave shape, and the claw portion 19a of the first engagement projection 19A can be engaged with the concave portion. It is said that.
- the engaging step 24 of the lancet 2 has a convex shape, and the distal end of the first engaging projection 19A has a concave portion 1 that can be fitted to the convex portion. 9 a is formed.
- the engaging step 24 of the lancet 2 has a shape having a plurality of irregularities, and the tip of the first engaging projection 19A.
- the portion is configured to have a plurality of uneven portions corresponding to the portion.
- the specific shape and number of the engaging step provided on the puncturing member, and the specific shape of the engaging projection for engaging with the engaging step are appropriately determined.
- the engagement means referred to in the present invention has a configuration capable of engaging with a surface of the puncture member facing the rearward direction of the housing when inserted into the housing of the puncture device from an opening thereof. It should just be.
- the engaging means is constituted by the engaging projections, it is not always necessary to provide the engaging projections in pairs, and it is also possible to provide more than one or only one engaging projection.
- the lancet holder 5 shown in FIG. 25 includes a plurality of engagement projections 57, and is configured such that the lancet 2 is held inside the plurality of engagement projections 57.
- a concave portion 25 is formed on the outer peripheral surface of the body portion 20 for engaging the distal end portion of each of the engaging projections 57, and the lancet 2 is inadvertently prepared from the distal end portion of the lancet holder 5 by this engagement. So that they cannot escape.
- an engagement structure may be adopted.
- the puncture member can be fitted and mounted on the movable member.
- the state in which a part of the lancet is arranged in the plurality of engaging projections as described above is also referred to as “fitting”. " include.
- the engaging projection 19A for pulling out and removing the lancet 2 for example, the claw 19a at the tip thereof can be engaged with the concave portion 25 of the lancet 2.
- the present invention is not limited to the contents of the above-described embodiment.
- the specific configurations of the puncture unit, the puncture member removal tool, and each part of the puncture device according to the present invention can be variously changed in design.
- the support member of the puncture unit according to the present invention may be configured so as not to have a cap for covering the needle of the puncture member, or not to have a case-like form with one or both ends opened.
- a puncture member having a structure different from that of the lancet of the above embodiment can be used.
- the puncture device and puncture unit according to the present invention are not limited to those used for measuring the glucose concentration in blood. It can be used for various other measurement and analysis purposes.
- the analysis component according to the present invention is obtained at least by puncture It is only necessary to have a function capable of sampling a sample, and it is not limited to a sensor holder on which a sensor having a reagent is mounted. For example, a sensor alone having a reagent on an appropriate substrate, a test paper itself, or a small piece-shaped member for sample sampling can be used as the analysis component.
- the puncture device may have a configuration without a dedicated driving unit for operating the stopper.
- the stopper may be manually driven by the user, and the position of the stop may be switched by the user.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US10/523,176 US8123771B2 (en) | 2002-07-29 | 2003-07-28 | Lancing unit, lancing member removal tool and lancing apparatus |
AU2003252285A AU2003252285A1 (en) | 2002-07-29 | 2003-07-28 | Piercing unit, piercing member removal device, and piercing device |
EP03771399.7A EP1541088B1 (en) | 2002-07-29 | 2003-07-28 | Piercing unit, piercing member removal device, and piercing device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002220051A JP4257943B2 (ja) | 2002-07-29 | 2002-07-29 | 穿刺用ユニット、および穿刺用部材の取り外し具 |
JP2002-220051 | 2002-07-29 |
Publications (1)
Publication Number | Publication Date |
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WO2004010871A1 true WO2004010871A1 (ja) | 2004-02-05 |
Family
ID=31184751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2003/009582 WO2004010871A1 (ja) | 2002-07-29 | 2003-07-28 | 穿刺用ユニット、穿刺用部材の取り外し具および穿刺装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8123771B2 (ja) |
EP (1) | EP1541088B1 (ja) |
JP (1) | JP4257943B2 (ja) |
CN (2) | CN101116614B (ja) |
AU (1) | AU2003252285A1 (ja) |
WO (1) | WO2004010871A1 (ja) |
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WO2009110247A1 (ja) * | 2008-03-07 | 2009-09-11 | パナソニック株式会社 | 穿刺装置 |
CN105708477A (zh) * | 2016-04-08 | 2016-06-29 | 杜东 | 一种便携式负压采血检测一体血糖仪 |
CN105796117A (zh) * | 2016-04-08 | 2016-07-27 | 杜东 | 一种微痛采血检测一体血糖仪 |
CN105919604A (zh) * | 2016-04-08 | 2016-09-07 | 杜东 | 一种便携式采血检测一体血糖仪 |
US9603563B2 (en) | 2011-04-08 | 2017-03-28 | Owen Mumford Limited | Skin penetration device |
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US6036924A (en) | 1997-12-04 | 2000-03-14 | Hewlett-Packard Company | Cassette of lancet cartridges for sampling blood |
US6391005B1 (en) | 1998-03-30 | 2002-05-21 | Agilent Technologies, Inc. | Apparatus and method for penetration with shaft having a sensor for sensing penetration depth |
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JP5363456B2 (ja) * | 2008-03-07 | 2013-12-11 | パナソニック株式会社 | 穿刺装置 |
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CN105796117A (zh) * | 2016-04-08 | 2016-07-27 | 杜东 | 一种微痛采血检测一体血糖仪 |
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Also Published As
Publication number | Publication date |
---|---|
AU2003252285A1 (en) | 2004-02-16 |
CN100348155C (zh) | 2007-11-14 |
CN1671322A (zh) | 2005-09-21 |
US20050288698A1 (en) | 2005-12-29 |
CN101116614A (zh) | 2008-02-06 |
JP4257943B2 (ja) | 2009-04-30 |
JP2004057489A (ja) | 2004-02-26 |
EP1541088B1 (en) | 2016-11-30 |
EP1541088A1 (en) | 2005-06-15 |
US8123771B2 (en) | 2012-02-28 |
CN101116614B (zh) | 2011-03-23 |
EP1541088A4 (en) | 2009-04-29 |
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