WO2002100272A1 - Corps de montage a element de perforation integre et procede de fabrication de ce dit corps - Google Patents
Corps de montage a element de perforation integre et procede de fabrication de ce dit corps Download PDFInfo
- Publication number
- WO2002100272A1 WO2002100272A1 PCT/JP2002/005754 JP0205754W WO02100272A1 WO 2002100272 A1 WO2002100272 A1 WO 2002100272A1 JP 0205754 W JP0205754 W JP 0205754W WO 02100272 A1 WO02100272 A1 WO 02100272A1
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- WIPO (PCT)
- Prior art keywords
- puncture
- integrated
- holding
- puncture element
- housing
- Prior art date
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Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
- A61B5/150503—Single-ended needles
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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
- A61B5/151—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
- A61B5/15101—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
- A61B5/15123—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 magnets or solenoids
-
- 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
- A61B5/15142—Devices intended for single use, i.e. disposable
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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
-
- 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
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0295—Strip shaped analyte sensors for apparatus classified in A61B5/145 or A61B5/157
Definitions
- the present invention relates to a puncture element integrated mounting body and a method for manufacturing the same.
- the present invention relates to a mounting body in which a puncture element and an analysis tool are integrated, and a method for manufacturing the same.
- Japanese Patent Application Laid-Open Publication No. 2000-231 discloses that a mounting body is attached to a main body of a blood glucose measurement device.
- a concentration measuring device is disclosed.
- the mounting body described in this publication integrates a puncture body 70 provided with a puncture needle 70a and a biosensor 71 holding an enzyme as shown in FIG. 11 of the present application. It is.
- the puncture needle 70 a is housed in a bare state in a space 73 covered by the nanosensor 71.
- the biosensor 71 has a through hole 71a that allows the puncture needle 70a to move. Therefore, the puncture needle 70a is exposed in the mounted body 7 regardless of the force integrating the biosensor 71.
- ⁇ requires that the puncture needle 70a be sterilized and maintained in a sterilized state until use. For this purpose, it is necessary to sterilize the puncture needle 70a in a sealed space and maintain the sealed state until use. As described above, in the mounting body 7, the puncture needle 70a is exposed regardless of the force that integrates the biosensor 71. For this reason, wearing body 7 It is necessary to sterilize the puncture needle 70a in a state of being sealed with a nate packaging material. Therefore, the mounting body 7 cannot sterilize the puncture needle 70a separately from the biosensor 71 and, consequently, the enzyme held by the biosensor 71! / ,.
- Japanese Patent No. 26166331 and Japanese Patent Application Laid-Open No. 9-92431 disclose a puncture needle to which a noise sensing function is added.
- Japanese Patent No. 26166331 discloses a biosensor 8 as shown in FIG. 12 of the present application.
- the pie 8 has a hollow puncture needle (counter electrode) 80 and a measurement electrode (working electrode) 82 2 housed inside the puncture needle 80 and fixing a force enzyme 81.
- Japanese Patent Application Laid-Open No. Hei 9-194421 discloses a biosensing device 9 as shown in FIG. 13 of the present application. This biosensing device 9 integrates a puncture money +90 and a cabillary 91.
- a working electrode 92 immobilized with an enzyme Inside the capillaries 91, a working electrode 92 immobilized with an enzyme, a counter electrode 93, and 94 reference electrodes are arranged. Even with the configurations disclosed in these publications, sterilization of the punctures 80 and 90 cannot be performed separately from the enzyme.
- the measurement of blood glucose level is performed using, for example, an amperometric method. More specifically, first, an electron transfer substance (for example, potassium ferricyanide) is reacted with an enzyme to form a reaction field. It supplies blood to this reaction site, oxidizing glucose in the blood while reducing electron mediators. Then, a voltage is applied to the reaction field to oxidize the electron mediator, and the amount of oxygen released at that time is measured as an oxidation current. The calculation of the blood glucose level is performed based on the oxidation current value.
- an electron transfer substance for example, potassium ferricyanide
- sterilization of the puncture needle is performed by, for example, gamma irradiation. Therefore, if an enzyme coexists when sterilizing the puncture needle, the enzyme is deactivated or the activity of the enzyme is reduced by ⁇ -ray irradiation. If such a situation occurs, the measurement time will be prolonged, or the measured concentration will be lower than the actual concentration, making it impossible to perform proper measurement.
- the electron transfer substance may be reduced.
- the reduced electron transport substances in the reaction field include those derived from y-ray irradiation in addition to those derived from the enzymatic reaction.
- the Rukoto As described above, in the amperometric method, the blood glucose level is calculated based on the amount of electrons emitted from the reduced electron mediator. Therefore, if the electron mediator is reduced by ⁇ -irradiation, the oxidation current measured at the time of applying a voltage becomes larger than the value that should be obtained. As a result, the measured concentration becomes higher than the actual concentration, which makes it impossible to perform an appropriate measurement. Disclosure of the invention
- a puncture element-integrated body includes: a puncture body having a puncture element; and a first child having a storage portion for holding the puncture body.
- a puncture element-integrated body comprising: an analysis tool to be supplied; and a second person holding the analysis tool and formed separately from the first attachment.
- the puncture body has a housing space that communicates with the outside through the first opening and the second opening, and the puncture body includes the first opening and the second opening in the first sealing material and the second opening. (2) It is characterized by being closed in the accommodation space by being closed by a sealing material.
- the puncture element-integrated body is configured such that, for example, by applying an external force to the puncture body, the puncture body moves from the standing state to the puncture position, and the puncture element protrudes from the storage portion.
- the first sealing material forms a hole when an external force is applied to the puncture body
- the second seal material forms a puncture element when the puncture body moves from the standing state to the puncture position, for example.
- the first and second sheet materials are made of, for example, a metal thin film or a resin sheet.
- a configuration may further be provided that further includes: a holder portion for attaching the second portion; and a support portion for supporting the housing portion at an upper position with respect to the holder portion.
- the housing part, the holder part and the support [5] can be integrally molded by, for example, resin molding. Becomes ⁇ in terms of manufacturing cost.
- only the housing portion may be formed as a separate body.
- the storage section is configured to be detachable from the holder section and the support section. Then, only the receiving section (including the puncture element) can be independently exchanged and used.
- the supporting portion has elasticity. In such a case, when an external force is applied to the housing portion downward, the support portion bends and the housing portion moves downward, and when the external force S is released, the housing portion returns to the original position. It may be configured to return elastically. In order to give the support part an elastic force, for example, it is preferable that the support part is constituted by a plurality of strips or linear parts.
- the locking portion is formed, for example, as one or a plurality of protrusions protruding inward of the accommodation space.
- the stopper portion can be formed, for example, by making the diameter of the second opening or the vicinity thereof smaller than the maximum diameter of the puncture body. More specifically, the flange is provided with a flange near the second opening to define the diameter of the second opening by the flange, or the side of the second opening near the second opening. It can be formed by providing a teno portion having a smaller diameter as going toward.
- the puncture body is fixed between the locking portion and the stopper portion.
- the fixed position of the puncture body corresponds to the puncture position.
- the analytical tool is formed as having a notch to allow movement of the piercing element. It is preferable that the analytical tool be fixed above the bottom surface attached in Section II.
- a method for manufacturing a puncture element-integrated body engraved according to the second aspect of the present invention includes: a puncture body forming step of forming a puncture body having a puncture element; and A first member having a housing portion having a housing space, the first member forming step forming a first attachment in which the housing space communicates with the outside via the first opening and the second opening.
- the first sealing material and the second sealing material are ultrasonically welded to the housing portion.
- the first and second seal materials it is preferable to use a metal thin film or a resin sheet.
- a biosensor holding an oxidoreductase is typically mentioned.
- the sterilization step is performed by irradiating the first member with ultraviolet rays or electron beams.
- FIG. 1 is an overall # 1 view showing an example of a concentration measuring device equipped with a mounting body according to the present invention.
- FIG. 2 is a sectional view taken along the line II-II in FIG.
- FIG. 3 is a cross-sectional view taken along the line III-III of FIG. 1 or an enlarged view of a main part thereof.
- FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG.
- FIGS. 5A to 5D are main-portion cross-sectional views for explaining a puncturing operation in the concentration measuring device shown in FIG.
- FIG. 6 is an overall perspective view of the mounting body according to the present invention.
- FIG. 7 is an overall perspective view of a second attachment in the mounting body shown in FIG.
- FIG. 8 is an overall perspective view of the biosensor.
- FIG. 9 is an exploded perspective view of the biosensor shown in FIG.
- 10A to 10D are views for explaining a method of manufacturing the mounted body shown in FIG.
- FIG. 11 is a cross-sectional view of a main part of a conventional blood tree direct measurement device.
- FIG. 12 is a perspective view showing a cross section of a main part of a biosensor provided with an enzyme-immobilized electrode in a puncture needle.
- FIG. 13 is a cross-sectional view of a biosensing device in which a puncture needle and a biosensor are integrated.
- the blood glucose level measuring device 1 performs a puncturing operation and a blood glucose level measurement after the mounting body 3 is attached to the device main body 2.
- the mounting body 3 has a first member 4 and a second hook 5 fitted and held in the first sound stick 4.
- the first-fourth part has a housing part 40, a holder part 41, and a plurality of strips 42.
- the accommodation section 40 has an accommodation space 43.
- the accommodation space 43 communicates with the outside via the first opening 43a and the second opening 43b.
- the first and second opening portions 43a, 43b are closed by the first and second sealing members 44a, 44b.
- a plurality of projections 45 functioning as locking portions are provided in the accommodation space 43.
- a teno wall 46 functioning as a stopper is provided at a lower position of the housing portion 40.
- the taper wall 46 is formed such that its diameter becomes smaller as it goes downward in FIGS.
- the diameter of the second opening 43b is smaller than the diameter of the first opening 43a.
- the puncture body 47 is held in the accommodation space 43 ⁇ while being locked by the plurality of protrusions 45. Have been.
- the puncture body 47 is obtained by integrating a puncture needle 47 B with a main body 47 A.
- the puncture needle 47B is inserted, for example, when the main body 47A is molded with resin.
- the main body portion 47A has an action portion 47a having a constant diameter, and a tapered portion 47b that becomes narrower toward the end.
- the acting portion 47a has a smaller diameter than the first opening 43a and is smaller than the second opening 43b.
- the action portion 47a is a portion for applying a pressing force by a pressing force 22 described later.
- the tapered portion 47 b is a portion locked by the plurality of protrusions 45.
- the puncture body 47 is held at the standby position in the accommodation space 43.
- the puncture needle 47 b does not protrude from the accommodation space 43, and the accommodation space 43 is kept sealed by the first and second seal materials.
- the plurality of projections 45 have tapered portions 4. The state in which the 7 b force S is locked is released, and the puncture body 47 moves relatively downward with respect to the storage section 40.
- the tapered part 47b interferes with the tail wall 46, and the movement of the puncture body 47 in the storage part 40 is restricted. .
- the position where the movement of the puncture body 47 is restricted corresponds to the puncture position of the puncture body 47, and the puncture needle 47B projects from the accommodation space 43.
- the plurality of protrusions 45 act on the upper surface of the action portion 47a, and the puncture body 47 is prevented from rebounding. In this case, the plurality of protrusions 45 also function as stopper portions.
- the holder 41 has a substantially cylindrical shape having first and second openings 41a and 41b.
- the holder portion 41 is provided with a flange portion 48 on the upper side in FIGS. 2 and 3, so that the diameter of the first opening portion 41a is smaller than the diameter of the second opening portion 41b.
- the holder portion 41 holds a second fifth force S. When the second member 5 is fitted, the flange portion 48 interferes with the second attachment 5, and the holding of the second attachment 5 is regulated.
- Each band-shaped portion 42 extends between the upper portion of the housing portion 40 and the upper surface of the holder portion 41 (the upper side in FIGS. 2 and 3 is the upper side).
- a plurality of strips 42 It functions as a support portion for supporting the housing portion 40 with respect to the portion 41.
- Each of the band portions 42 is flexible and has a function of functioning as a panel.
- the band-shaped portion 42 is selected to have a dimensional razor material so as to have a strength capable of supporting the housing portion 40 without bending. Have been.
- First Embodiment 4 having such a form can be integrally formed by resin molding. After forming a plurality of notes by resin molding, they may be assembled to form the first rice cake 4.
- the support part (42) can be made of an elastic material such as coil panel or urethane foam.
- the housing part 40 and the holder part 41 may be formed separately, and these and the support part 42 may be integrated.
- the holder part 41 and the support part (42) may be integrally formed, and only the housing part 40 may be formed separately. To this end, it is preferable that the housing portion 40 is configured to be detachable.
- the puncture body 47 can be held with respect to the integrated body of the holder portion 41 and the support portion 42, and only the accommodation portion 40 which is in a closed state can be replaced and used. become.
- the second attachment 5 has a cylindrical wall 50 and a mounting portion 51 that closes substantially half of one opening, as is clearly shown in FIG.
- the mounting part 51 is a teno, whose thickness becomes smaller toward one edge. It has a part 52.
- a semicircular notch 53 is provided in the center of the edge of the tapered portion 52.
- the biosensor 6 is mounted on the tapered portion 52 as shown in FIGS. Therefore, biosensor 6 is held in an inclined state.
- the illustrated mounting portion 51 is in a state of being lifted from the bottom surface of Appendix 2-5.
- a negative pressure is generated using a pump or the like, and the skin surface is raised.
- it is configured to perform a puncturing operation. Raise the skin surface
- the placing part 51 is almost flush with the bottom of the second attachment 5, and the protruding portion of the puncture needle 47B is also lower than the bottom of the second child 5 .
- the biosensor 6 has a substrate 60, a pair of spacers 61, and a cover 62, as shown in FIGS.
- the substrate 60 is formed in a rectangular shape by using an insulating material. At the center of one longitudinal edge of the male, a notch 63 is provided corresponding to the notch 53 of the second sound 5.
- a working electrode 65 and a counter electrode 66 are formed on one surface 64 of the substrate 60.
- the working electrode 65 extends from one short edge of the substrate 60 toward the center of the substrate 60, and the portion located at the center of the sickle 60 has a narrow width.
- the counter electrode 66 extends from the other short edge toward the center of the substrate 60, and a portion located at the center of the substrate 60 has a bifurcated shape sandwiching the action portion 65.
- the working electrode 65 and the counter electrode 66 can be formed by screen printing of carbon ink, or by performing an etching process after forming a conductive film by sputtering.
- a reaction portion 67 is further formed on one surface 64 of the substrate 60.
- the reaction portion 67 is formed in a band shape extending between the notch 63 and the other longitudinal portion, and crossing both the working electrode 65 and the counter electrode 66.
- the reaction section 67 is in a solid state containing, for example, an oxidoreductase such as Darcos dehydrogenase and an electron transfer substance such as a pheliocyanidation sphere.
- Such a reaction part 67 can be formed by applying a slurry containing an oxidoreductase and an electron transfer substance by a method such as screen printing and then drying the slurry.
- the paired spacers 61 are provided on both sides of the reaction section 67 in a 5 m shape with an interval corresponding to the short dimension of the reaction section 67.
- Each spacer 61 is formed in an elongated rectangular shape having a longitudinal dimension corresponding to the dimension of the substrate 60 in the lateral direction. However, a cutout 68 is formed at one corner of each spacer 61.
- the notch 68 is provided at a position corresponding to the notch 63 of the substrate 60.
- Each spacer 61 is made of, for example, a double-sided tape or an adhesive.
- the cover 62 is fixed so as to straddle a pair of spacers.
- the cover 62 has an arc-shaped notch 69 formed at the center of one short edge.
- Notch 6 Reference numeral 9 is provided at a portion corresponding to the notch 63 of the substrate 60.
- the biosensor 6 has a semi-cylindrical concave portion 6A that is open in the thickness direction and in the lateral direction of the substrate.
- This recess 6A is a hole through which the puncture needle 47B passes during the puncture operation as shown in FIG. 5, and a receptacle for blood bleeding from the skin as expected from FIGS. 2 and 3. It becomes something.
- the substrate 60, the spacer 61, and the cover 62 form a flow path 6B crossing the substrate 60 in the lateral direction.
- One end of the flow path 6B communicates with the outside via the recess 6A, and the other end also communicates with the outside. Therefore, when blood is introduced from the recess 6A, the blood proceeds toward the other end by capillary action.
- a reaction section 67 is provided in the flow path 6B. Therefore, in the process of executing the blood force in the flow path 6B, the reaction section 67 is dissolved. At this time, the glucose in the blood is oxidized by an enzymatic reaction, and the electron mediator is reduced by electrons derived from this reaction.
- the mounting body 3 having the above-described embodiment is manufactured as follows.
- the first and second members 4 and 5 are formed in advance by, for example, resin molding, and the puncture body 47 and the biosensor 6 are also prepared in advance.
- the puncture body 47 is inserted from the side of the puncture needle 47 B through the first opening 43 a of the storage section 40. Then, the tapered portion 47 b of the puncture body 47 is locked by the plurality of projections 45 of the accommodation part 40, and the puncture body 47 is held in the accommodation space 43.
- the first and second openings 43a, 43b of the housing part 40 are made into the first and second sealing materials 44a, 44b in the 7-compound level.
- the puncture body 47 punctcture needle 47B
- the openings 43a and 43b are closed by ultrasonic fusion of a metal thin film such as an aluminum foil or a resin sheet.
- the first member 4 holding the puncture body 47 hermetically is sterilized together with the puncture needle 47B. Sterilization is performed, for example, by illuminating a 7-wire or electron beam.
- the biosensor 6 is fixed to the receiver 51.
- the biosensor 6 is fixed using, for example, a double-sided tape or an adhesive. .
- the mounting member 3 is formed by fitting the second member 25 to the holder 41 of the first member 4.
- the puncture needle 47 B is sterilized while being separated from the sensor 6. For this reason, the reaction section of biosensor 6 is sterilized.
- the oxidoreductase that constitutes 67 is denatured or inactivated, or the electron mediator is not reduced. Therefore, the measurement accuracy may not be reduced due to the sterilization treatment of the puncture needle 47B.
- the device main body 2 is provided with a display 20 and a push button 23.
- the apparatus main body 2 includes a housing 21 having an end opening 21a as shown in FIGS.
- the mounting body 3 is fitted and held in the end opening 21 a of the housing 21.
- a pressing force 22 capable of moving from a standby position to a pressing position is held.
- the pressing member 22 has a form in which the needle-like portion 22 a protrudes from the main body portion 22.
- the pressing unit 22 in the standby state is moved to the pressing position by pressing the pressing button 23.
- the pressing member 22 As means for moving the pressing member 22, for example, the pressing member 22 is latched in a state where it is urged toward the end opening 21 a side, and the latching state is established by pressing the pressing button 23.
- an elastic body such as a coil panel or a foaming resin may be used.
- the locking force S of the 7 (taper portion 4 7 b) to the plurality of protrusions 45 is released, and the puncture body 47 moves to the second seal member 44 b side.
- the second needle is A piercing force S is formed in the sealing material 4 4 b.
- the tapered portion 47 b of the puncture body 47 collides with the tapered wall 46 of the accommodation section 40, and the puncture body 47 moves relative to the accommodation section 40. Disappears.
- the puncture needle 47 B protrudes from the second opening 43 b force.
- the main body 22 b of the pressing member 22 presses the housing portion 40.
- the band portion 42 is bent, and the housing portion 40 moves downward.
- the tip of puncture needle 47 B is located below through hole 53 of second member 5. Therefore, if puncturing operation is performed with housing 21 pressed against the skin surface of the human body, puncturing needle 47B can pierce the skin and promote bleeding (see FIGS. 2 and 3).
- the puncture needle 47B passes through the concave portion 6A of the biosensor 6, so that the blood from the skin stays in the & ⁇ portion 6A and then flows through the channel 6B (see FIG. 8). Will be introduced.
- the pressing device 22 elastically returns to the upper side as shown in FIG. 5D. With this, the pressing force on the storage section 40 is released. As a result, the accommodation portion 40 returns to the upper side by the elastic restoring force of the support portion 42.
- the puncturing operation can also be performed by, for example, a configuration in which the mounted body is integrated with a moving body that can move within the nosing: the mounted body is moved together with the moving body.
- the mounted body is moved together with the moving body.
- a pressing force is applied to the accommodating portion and thus the punctured body, and the punctured body is moved (punctured).
- the housing 21 is further provided with a stopper wall 24 protruding from the inner surface of the housing 21 as shown in FIGS.
- the wall 24 interferes with the holder portion 41 and regulates the position of the mounting member 3. Therefore, as shown in FIG. 4, the shape is such that the insertion of the accommodation portion 40 and the band portion 42 is not hindered.
- the stono and the oval portion 24 are separated through an arc-shaped region 24 a having a constant width and a slit 24 b, and when the mounting body 3 is attached to the housing 21, It has two peninsula glue areas 24 c located between adjacent strips 42.
- Each peninsula-shaped region 24c holds a pair of connectors 25 as shown in FIGS.
- Each connector 25 has a connector pin 25a with an end It is held so as to protrude.
- the connector pins 25 a are removed to the working electrode 65 and the counter electrode 66 of the biosensor 6 as shown in FIG. 8 in a state where the mounting body 3 is held by the housing 21.
- Each connector 25 is connected to an electric circuit (not shown) so that 3 ⁇ 4j £ can be applied between the working electrode 65 and the counter electrode 66, and the anode current value from the working electrode 65 is measured. It is possible.
- the electron mediator is converted from an oxidized form to a reduced form by an enzymatic reaction caused by blood supply. Therefore, if BE is applied between the working electrode 65 and the counter electrode 66 via the connector 25, the reduced electron mediator is converted to the oxidized one. Oxidation current flows through the working electrode 65 due to this oxidation reaction. The value of the oxidation current can be measured using the connector 25. On the other hand, the electric circuit calculates the glucose concentration in the sample solution based on the oxidation current value, and displays the result on the display 20.
- a concentration measurement device configured to measure blood fibers has been described as an example.
- the technical idea of the present invention is that a concentration measurement device that performs a puncturing operation and a measurement operation simultaneously. Applicable to IS.
- the technical idea of the present invention can be applied to a device that measures the concentration of cholesterol monolactic acid using an enzyme reaction or a device that measures the concentration by colorimetry.
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003503101A JP4214274B2 (ja) | 2001-06-11 | 2002-06-10 | 穿刺要素一体装着体 |
EP02736045.2A EP1396226B1 (en) | 2001-06-11 | 2002-06-10 | Measuring apparatus comprising a puncturing element integration mounting body |
US10/479,528 US7250056B2 (en) | 2001-06-11 | 2002-06-10 | Lancet-integrated mounter and method of making the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001175370 | 2001-06-11 | ||
JP2001-175370 | 2001-06-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002100272A1 true WO2002100272A1 (fr) | 2002-12-19 |
Family
ID=19016520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/005754 WO2002100272A1 (fr) | 2001-06-11 | 2002-06-10 | Corps de montage a element de perforation integre et procede de fabrication de ce dit corps |
Country Status (5)
Country | Link |
---|---|
US (1) | US7250056B2 (ja) |
EP (1) | EP1396226B1 (ja) |
JP (1) | JP4214274B2 (ja) |
CN (1) | CN1255079C (ja) |
WO (1) | WO2002100272A1 (ja) |
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JP4944803B2 (ja) * | 2006-02-09 | 2012-06-06 | パナソニック株式会社 | 血液検査装置 |
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JP5386673B2 (ja) * | 2008-06-05 | 2014-01-15 | 株式会社ライトニックス | 穿刺針カートリッジ及び穿刺装置 |
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WO2016115941A1 (zh) * | 2015-01-20 | 2016-07-28 | 胡绍勤 | 一种安全式采血针结构 |
Also Published As
Publication number | Publication date |
---|---|
EP1396226A4 (en) | 2008-04-30 |
CN1514699A (zh) | 2004-07-21 |
US7250056B2 (en) | 2007-07-31 |
EP1396226B1 (en) | 2013-08-21 |
JP4214274B2 (ja) | 2009-01-28 |
JPWO2002100272A1 (ja) | 2004-09-24 |
EP1396226A1 (en) | 2004-03-10 |
CN1255079C (zh) | 2006-05-10 |
US20040158271A1 (en) | 2004-08-12 |
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