WO2010041473A1 - Cartouche d’aiguille pour ponction et dispositif de ponction - Google Patents

Cartouche d’aiguille pour ponction et dispositif de ponction Download PDF

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Publication number
WO2010041473A1
WO2010041473A1 PCT/JP2009/005299 JP2009005299W WO2010041473A1 WO 2010041473 A1 WO2010041473 A1 WO 2010041473A1 JP 2009005299 W JP2009005299 W JP 2009005299W WO 2010041473 A1 WO2010041473 A1 WO 2010041473A1
Authority
WO
WIPO (PCT)
Prior art keywords
puncture needle
arm
lancet
puncture
cartridge
Prior art date
Application number
PCT/JP2009/005299
Other languages
English (en)
Japanese (ja)
Inventor
由樹 竹内
章生 長尾
Original Assignee
パナソニック株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニック株式会社 filed Critical パナソニック株式会社
Publication of WO2010041473A1 publication Critical patent/WO2010041473A1/fr

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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
    • 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
    • A61B5/150175—Adjustment of penetration depth
    • A61B5/150183—Depth adjustment mechanism using end caps mounted at the distal end of the sampling device, i.e. the end-caps are adjustably positioned relative to the piercing device housing for example by rotating or screwing
    • 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
    • A61B5/150519—Details of construction of hub, i.e. element used to attach the single-ended needle to a piercing device or sampling device
    • 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
    • A61B5/150633—Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
    • A61B5/150641—Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves comprising means to impede repositioning of protection sleeve from covering to uncovering position
    • 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
    • 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
    • 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
    • A61B5/15101—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

Definitions

  • the present invention relates to a puncture needle cartridge and a puncture device used for a puncture device for collecting blood in blood measurement such as blood glucose level measurement.
  • the present invention has been made in view of the above points, and an object thereof is to provide a puncture needle cartridge and a puncture device that allow a user to prevent reuse of a used lancet and exposure of the puncture needle.
  • the puncture needle cartridge of the present invention includes a puncture needle that punctures the skin, and a protective cap that is formed so as to cover part or all of the tip of the puncture needle and that is separable from the puncture needle.
  • a puncture needle cartridge comprising a lancet and a puncture needle holder for holding the lancet so that the lancet is movable in the axial direction of the puncture needle, wherein the lancet is elastically deformed at different positions in the axial direction. It is possible to adopt a configuration including at least a first arm and a second arm.
  • the puncture needle cartridge of the present invention includes a puncture needle that punctures the skin, and a protective cap that is formed so as to cover part or all of the tip of the puncture needle and that is separable from the puncture needle.
  • a puncture needle cartridge comprising a lancet and a puncture needle holder for holding the lancet so that the lancet is movable in the axial direction of the puncture needle, wherein the lancet is elastically deformed at different positions in the axial direction.
  • the puncture needle holder has at least a first arm and a second arm, and the puncture needle holder is located outside the puncture needle holder when the lancet is at a predetermined position in the axial direction of the puncture needle.
  • the piercing needle cartridge has an opening through which the first arm and / or the second arm protrudes, and only the first arm protrudes from the opening to transfer the lancet.
  • the puncture device of the present invention is a puncture device to which a cartridge-type puncture needle cartridge for puncturing the skin is attached, and the puncture needle cartridge is the puncture needle cartridge according to claim 1,
  • a configuration is provided that includes a casing that holds the puncture needle holder, and a plunger that holds the lancet and drives it in the axial direction of the puncture needle.
  • the puncture device of the present invention is a puncture device to which a cartridge type puncture needle cartridge for puncturing the skin is mounted, and the puncture needle cartridge is the puncture needle cartridge described above, and the puncture needle of the puncture needle cartridge A casing for holding the holder; and a plunger for holding the lancet and driving in the axial direction of the puncture needle.
  • the puncture needle cartridge in the first state is mounted, the first arm is elastically deformed.
  • the lancet held by the plunger can be driven in the axial direction of the puncture needle, and when the puncture needle cartridge is removed from the puncture device, the holding of the lancet and the plunger is released.
  • the configuration is such that the puncture needle cartridge is changed to the third state.
  • the lancet constituting the puncture needle cartridge has the first arm and the second arm capable of elastic deformation at different positions in the axial direction, so that the patient can reattach the used puncture needle cartridge. Even so, it is possible to prevent the puncturing operation again.
  • the puncture needle cartridge after use exposure of the needle tip after use can be prevented by the first arm or the second arm contacting the puncture needle holder.
  • the first arm and the second arm that restrict the axial movement of the lancet after use are provided, even if either the first arm or the second arm is damaged, it was not damaged. The other arm can prevent the puncture needle from being exposed, which is much safer.
  • FIG. 1 The perspective view which shows the whole structure of the puncture apparatus and puncture needle cartridge which concern on Embodiment 1 of this invention.
  • the perspective view of the principal part which shows the state inside the front-end
  • the perspective view of the puncture needle cartridge which concerns on the said Embodiment 1.
  • FIG. 1 The perspective view of the protective cap and lancet main body of the puncture needle cartridge which concern on the said Embodiment 1.
  • FIG. 1 Sectional drawing of the principal part in each operation state of the puncture needle cartridge and puncture apparatus main body which concern on the said Embodiment 1.
  • FIG. 1 Sectional drawing of the principal part in each operation state of the puncture needle cartridge and puncture apparatus main body which concern on the said Embodiment 1.
  • FIG. Sectional drawing of the principal part in each operation state of the puncture needle cartridge and puncture apparatus main body which concern on the said Embodiment 1.
  • FIG. Sectional drawing of the principal part in each operation state of the puncture needle cartridge and puncture apparatus main body which concern on the said Embodiment 1.
  • FIG. 1 Sectional drawing of the principal part in each operation state of the puncture needle cartridge and puncture apparatus main body which concern on the said Embodiment 1.
  • the perspective view of the protective cap and lancet main body of the puncture needle cartridge which concern on Embodiment 2 of this invention The perspective view of the protective cap and lancet main body of the puncture needle cartridge which concern on Embodiment 3 of this invention
  • the perspective view of the protective cap and lancet main body of the puncture needle cartridge which concern on Embodiment 4 of this invention The perspective view of the protective cap and lancet main body of the puncture needle cartridge which concern on Embodiment 5 of this invention Sectional drawing of the puncture needle cartridge which concerns on Embodiment 6 of this invention Sectional drawing of the puncture needle cartridge which concerns on Embodiment 6 of this invention
  • FIG. 1 is a perspective view showing the entire configuration of a puncture device and a puncture needle cartridge according to Embodiment 1 of the present invention, and FIG. It is a perspective view.
  • FIG. 3 is a perspective view of the puncture needle cartridge, and
  • FIG. 4 is a perspective view of the protective cap and the lancet body.
  • the puncture device 100 includes a puncture device main body 101 and a puncture needle cartridge 105.
  • the puncture apparatus main body 101 includes a base mechanism 102, a plunger 103, a stub 104, a discard member 106, an insertion port 107, a puncture button 108, and a discard button 109 for discarding the puncture needle cartridge 105.
  • the base mechanism 102 holds the puncture needle holder 201 (see FIG. 3) of the puncture needle cartridge 105.
  • the tip of the plunger 103 grips the chucking portion 206 (see FIG. 2) of the puncture needle cartridge 105.
  • the stub 104 has a depth adjustment level and an insertion port 107 into which the puncture needle cartridge 105 is inserted.
  • the discarding member 106 pushes out and discards the puncture needle cartridge 105 attached to the puncture apparatus main body 101 without touching it with bare hands.
  • the puncture button 108 is pressed when the user punctures.
  • the puncture needle cartridge 105 includes a lancet 204 and a cylindrical puncture needle holder 201.
  • the lancet 204 protects the lancet 207, the lancet body 203 that holds the puncture needle 207, and a part or all of the portion of the puncture needle 207 exposed from the lancet body 203, and is separated from the lancet body 203.
  • a protective cap 202 formed in a possible manner.
  • the puncture needle cartridge 105 is arranged on the outer peripheral surface of the lancet 204 so that the puncture needle 207 can move in the axial direction of the lancet body 203.
  • the puncture needle 207 punctures the skin to collect body fluid and the like.
  • the lancet main body 203 includes a chucking portion 206, a breaking portion 208 capable of separating the protective cap 202 and the lancet main body 203, a first arm 209, a second arm 210, and a guide 215.
  • the first arm 209 and the second arm 210 are elastically deformable, and are disposed at different positions in the axial direction of the lancet body 203.
  • Both the first arm 209 and the second arm 210 have tip portions, and the positional relationship between the tip portions and the puncture needle holder 201 changes, thereby preventing the reuse of the puncture needle cartridge 105 and the protective cap 202.
  • the engaging portion with the puncture needle holder 201 at the distal end portion of the first arm 209 is the first element
  • the engaging portion with the puncture needle holder 201 at the distal end portion of the second arm 210 is the second element.
  • the first arm 209 can serve as a spare arm as an exposure prevention function when the second arm 210 is damaged. Further, the first arm 209 has a reuse prevention function when the second arm 210 is damaged.
  • the first arm 209 is a pair of arms whose tips protrude outward from the outer peripheral surface of the lancet body 203.
  • the second arm 210 is an arm whose front end protrudes outward from the outer peripheral surface at a position different from the first arm 209 in the axial direction or the circumferential direction of the lancet body 203.
  • two first arms 209 are arranged symmetrically with the lancet body 203 as the axis of symmetry, and are 90 degrees out of phase with the first arm 209.
  • a guide 215 is disposed at the position.
  • the second arms 210 are arranged in two shapes and have a symmetrical shape.
  • inclined portions 209a and 210a are provided on the chucking portion 206 side at the distal ends of the first arm 209 and the second arm 210, respectively.
  • the inclined portions 209a and 210a facilitate the movement of the distal end portion of the first arm 209 and the distal end portion of the second arm 210 in the axial direction of the lancet body 203 by the inclined surface.
  • a protrusion 212 is provided at the distal end of the second arm 210 so as to be easily engaged with the open end 214 (see FIG. 5) of the puncture needle holder 201.
  • the distal ends of the pair of first arms 209 are disposed at an equal distance (distance A) from the protective cap 202, and the distal ends of the pair of second arms 210 are also equidistant from the protective cap 202 (distance B). ). However, the distance A and the distance B are different, and the distance A is longer than the distance B.
  • the puncture needle cartridge 105 only the distal end portion of the first arm 209 is exposed from the opening 211, and the movement of the lancet body 203 forward (in the direction in which the puncture needle 207 protrudes) is restricted.
  • the distal end portion of the first arm 209 and the distal end portion of the second arm 210 are accommodated in the puncture needle holder 201, and the lancet body 203 is movable in the axial direction of the puncture needle 207 ⁇ second state>
  • the distal end portion of the first arm 209 and the distal end portion of the second arm 210 are respectively exposed from the opening 211 to restrict the movement of the lancet body 203 in the forward direction (direction in which the puncture needle 207 protrudes).
  • the puncture needle holder 201 holds the lancet body 203 so that the lancet body 203 is guided by the guide 215 and can move in the axial direction of the puncture needle 207.
  • the puncture needle holder 201 has an opening for exposing a part of the first and / or second arm to the outside of the puncture needle holder 201 when the lancet body 203 is at a predetermined position in the axial direction of the puncture needle 207.
  • a plurality of openings 211 are provided at equal intervals on the outer peripheral surface or outer surface of the puncture needle holder 201. In the present embodiment, four openings 211 are provided at intervals of 90 degrees. Among these, two sets of openings 211 facing each other, a part of the first and / or second arms and the guide 215 are provided. Part or all of the structure is exposed.
  • the puncture needle holder 201 has an opening end 214 that engages with the tip of the first arm 209 or the second arm 210 on the end surface of the opening 211 on the protective cap 202 side.
  • the puncture needle holder 201 accommodates the distal end portion of the second arm 210 when the lancet body 203 is at the first position in the axial direction of the puncture needle 207, and the lancet body 203 is in the axial direction of the puncture needle 207.
  • the first arm 209 and the second arm 210 are housed.
  • Each of the two arms 210 is provided with an opening 211 that exposes the tip of the arm 210 to the outside.
  • the puncture needle holder 201 and the lancet 204 are attached to the distal end portion of the puncture apparatus main body 101 in a state where the puncture needle cartridge 105 is configured. At this time, the lancet 204 is gripped by the tip portion of the plunger 103 in the chucking portion 206 provided in the lancet body 203.
  • the lancet body 203 and the protective cap 202 are integrally formed of an elastic material such as resin, for example, polyethylene resin, and have a fracture portion 208.
  • 5 to 10 are cross-sectional views of the main part of the puncture needle cartridge 105 and the puncture apparatus main body 101 in each operation state.
  • 5 shows a state before the puncture needle cartridge 105 is attached
  • FIG. 6 shows a state in which the puncture needle cartridge 105 is attached to the puncture device main body 101
  • FIG. 7 shows a state in which the protective cap 202 is separated
  • FIG. 9 shows a state after disposal
  • FIG. 10 shows a state after disposal after re-installation.
  • FIG. 5 shows a ⁇ first state> in which the distal end portion of the first arm 209 is exposed from the opening 211 of the puncture needle holder 201 (see FIG. 3), and the forward movement of the lancet body 203 is restricted. Yes.
  • puncture needle cartridge 105 When puncture needle cartridge 105 is mounted (FIG. 6)] When the puncture needle cartridge 105 is mounted on the puncture device main body 101, the chuck 103 of the lancet main body 203 constituting the puncture needle cartridge 105 is gripped by the plunger 103. At the same time when the puncture needle cartridge 105 is mounted, the puncture device main body 101 is charged for puncture by the bias of a puncture spring (not shown) provided on the plunger 103 when the puncture needle cartridge 105 is mounted. Thus, preparation for puncture is made.
  • a puncture spring not shown
  • FIG. 7 shows a state where the lancet body 203 and the protective cap 202 are separated when the puncture needle cartridge 105 is attached (FIG. 6).
  • FIG. 8 shows a state where the puncture needle 207 has returned after the puncture. At this time, the distal end portion of the first arm 209 and the distal end portion of the second arm 210 are present inside the puncture needle holder 201.
  • the distal end portion of the first arm 209 and the distal end portion of the second arm 210 are accommodated in the puncture needle holder 201 so that the lancet main body 203 can move in the axial direction of the puncture needle 207. ⁇ Second state>.
  • FIG. 9A shows that the used puncture needle cartridge 105 is removed from the puncture apparatus main body 101, and the used puncture needle cartridge 105 is discarded.
  • FIG. 9B shows that the distal end portion of the first arm 209 and the distal end portion of the second arm 210 are exposed from the opening 211 (see FIG. 3) of the puncture needle holder 201, and the forward movement of the lancet body 203 is restricted. ⁇ Third state> is shown.
  • the discarded puncture needle cartridge 105 When the rear end portion (the chucking portion 206 side) of the lancet body 203 is pushed forward by a user's erroneous operation, the discarded puncture needle cartridge 105 first has the tip end portion of the second arm 210 as the puncture needle holder. Engage with 201 to prevent exposure of puncture needle 207. Furthermore, even when the second arm 210 is damaged, the tip of the first arm 209 is engaged with the puncture needle holder 201 to prevent exposure. Thus, after disposal, the two types of arms always work to prevent the exposure of the needle, so that a safer product can be obtained.
  • FIG. 10 shows a state in which the puncture needle cartridge 105 that has been recapped after disposal (reattachment of the protective cap 202) is reattached to the puncture apparatus body 101.
  • FIG. 10 shows a state in which the puncture needle cartridge 105 that has been recapped after disposal (reattachment of the protective cap 202) is reattached to the puncture apparatus body 101.
  • the tip of the second arm 210 is exposed from the puncture needle holder 201, and the tip of the second arm 210 and the puncture needle Engagement of the holder 201 prevents the lancet body 203 from moving forward and puncturing. That is, since the discarded (used) puncture needle cartridge 105 cannot be reused by mistake, it is safe.
  • the distal end portion of the first arm 209 is exposed from the puncture needle holder 201, and the forward movement of the lancet body 203 is restricted (first state) (see FIG. 5). )
  • the distal end portion of the first arm 209 and the distal end portion of the second arm 210 are accommodated in the puncture needle holder 201, and the lancet body 203 is movable in the puncture needle holder 201 (second state) (FIG. 8), the distal end portion of the first arm 209 and the distal end portion of the second arm 210 are respectively exposed from the puncture needle holder 201 to restrict the forward movement of the lancet body 203 ⁇ third state> ( (See FIG. 9B).
  • the distal end portion of the second arm 210 When the distal end portion of the second arm 210 is exposed from the puncture needle holder 201 and the puncture needle cartridge 105 after use is set in the puncture device main body 101 to perform the puncture operation, the distal end portion of the second arm 210 is not moved. It engages with puncture needle holder 201 (see FIG. 10) and restricts the forward movement of lancet body 203. Moreover, since the 2nd arm 210 has the intensity
  • the reuse of the used puncture needle cartridge 105 and the exposure of the puncture needle 207 from the puncture needle holder 201 can be reliably prevented.
  • First state is a state before the puncture needle cartridge 105 is attached to the puncture apparatus main body 101 (see FIG. 1).
  • the first arm 209 prevents the lancet body 203 from moving forward.
  • the distal end portion of the first arm 209 is exposed from the puncture needle holder 201.
  • the distal end portion of the first arm 209 engages with the opening end portion 214 (see FIG. 5) portion of the puncture needle holder 201 and restricts forward movement.
  • the exposure of the puncture needle 207 is restricted and safe even if the protective cap 202 is removed before the puncture needle cartridge 105 is attached to the puncture apparatus main body 101.
  • the tip of the second arm 210 remains in the puncture needle holder 201.
  • (1) and (2) will be described as a process of shifting from the first state to the second state.
  • the tip of the second arm 210 remains in the puncture needle holder 201.
  • the tip of the puncture needle 207 protrudes from the puncture needle holder 201 and punctures the skin. Accordingly, the distal end portion of the first arm 209 also advances and enters the puncture needle holder 201. Thereafter, the distal end portion of the first arm 209 stops when the plunger 103 is retracted to the position of the free length of the puncture spring. The position of the distal end portion of the first arm 209 inside the puncture needle holder 201 when stopped is in front of the position when the puncture needle cartridge 105 is mounted and inside the puncture needle holder 201.
  • Disposal 1 As the discarding member 106 pushes only the puncture needle holder 201, only the puncture needle holder 201 moves toward the distal end of the puncture needle 207, but the lancet body 203 does not move. At this time, the puncture needle holder 201 moves while elastically deforming the distal end portion of the first arm 209 in the axial direction of the lancet body 203 along the inclination inside the opening end portion 214. When the distal end portion of the first arm 209 passes through the opening end portion 214 (see FIG. 5), the distal end portion of the first arm 209 is exposed from the puncture needle holder 201.
  • the tip of the second arm 210 remains in the puncture needle holder 201.
  • the discarding member 106 continues the pushing operation of the first at the time of discarding, and the puncture needle holder 201 moves further forward, but the position of the distal end portion of the first arm 209 remains as it is.
  • This further forward movement causes the puncture needle holder 201 to move while elastically deforming the tip of the second arm 210 in the axial direction of the lancet body 203 along the inclination of the inside of the opening end 214.
  • the operation of the first arm 209 and the second arm 210 in the ⁇ first state>, ⁇ second state>, and ⁇ third state> has been described above.
  • the operation of the first arm 209 and the second arm 210 when in the “prevented exposure or reuse prevention of the puncture needle 207 after disposal” state will be described.
  • the prevention of exposure of the puncture needle 207 after disposal will be described in the case where the puncture needle cartridge 105 is not remounted to the puncture apparatus main body 101, and the reuse of the puncture needle 207 after disposal is prevented from puncturing the puncture apparatus main body 101.
  • a case where the needle cartridge 105 is remounted will be described.
  • the lancet 204 constituting the puncture needle cartridge 105 has the first arm 209 and the second arm 210 that can be elastically deformed at different positions in the axial direction.
  • the puncture needle cartridge 105 includes a distal end portion of the first arm 209 that is exposed from the puncture needle holder 201 to restrict the movement of the lancet body 203, and a distal end portion of the first arm 209.
  • the second arm 210 and the distal end of the first arm 209 are accommodated in the puncture needle holder 201 so that the lancet body 203 can move in the axial direction of the puncture needle 207, and the distal end of the first arm 209
  • the distal end portions of the two arms 210 are exposed from the puncture needle holder 201 and can take ⁇ third state> in which the movement of the lancet body 203 is restricted. With this configuration, even if the patient re-installs the used puncture needle cartridge 105, the puncture operation can be prevented again.
  • the distal end portion of the second arm 210 or the distal end portion of the first arm 209 abuts against the puncture needle holder 201, thereby preventing the puncture needle 207 after use from being exposed. .
  • first arm 209 and the second arm 210 that restrict the axial movement of the lancet body 203 after use are provided, even if the second arm 210 may be damaged, the other arm that has not been damaged The arm can prevent the puncture needle from being exposed, making it even safer.
  • the first arm 209 or the second arm 210 has two types of arms, so that the reuse prevention function can be enhanced. Further, prevention of exposure of the puncture needle 207 after use can be enhanced.
  • the arm is more easily engaged with the puncture needle holder 201 and the arm is more difficult to open. is there.
  • first arms 209 and two second arms 210 are arranged at equal angles (180 degrees)
  • first arm 209 and the second arm 210 are described. It is not limited that there are two or equal angles.
  • first arm 209 and the second arm 210 have the inclined portions 209a and 210a, and the second arm 210 has the protruding portion 212, respectively.
  • FIG. 11 is a perspective view of the protective cap and lancet body of the puncture needle cartridge according to Embodiment 2 of the present invention.
  • the same components as those in FIG. 4 are denoted by the same reference numerals, and description of overlapping portions is omitted.
  • the lancet 304 has a first arm 309 and a second arm 310 that are arranged at positions where phases around the axis of the lancet body 203 are different.
  • two first arms 309 and two second arms 310 are arranged at positions having a phase difference of 90 degrees, and the first arm 309 and the second arm Both 310 are arranged at the same angle (180 degrees) as in the first embodiment.
  • inclined portions 309 a and 310 a are provided on the chucking portion 206 side of the tip portions of the first arm 309 and the second arm 310.
  • the second arm 310 is provided with a protrusion 311.
  • the protrusion 311 has a shape protruding from the distal end portion of the second arm 310 in the puncture direction.
  • first arm 209 and the second arm 210 of the first embodiment are arranged in the same phase
  • the phases of the first arm 309 and the second arm 310 are different. At this time, it is possible to prevent all the arms from being easily deformed inward by an erroneous operation by the user.
  • the following effects are further obtained. That is, when the arms are in the same phase as in the first arm 209 and the second arm 210 of the first embodiment, the needle is exposed when the arm is grasped with a finger after being discarded and an unreasonable operation is performed. Can be considered.
  • the phases of the first arm 309 and the second arm 310 are shifted by 90 degrees, the operation as described above becomes very difficult, and it is more effective in preventing exposure.
  • first arms 309 and two second arms 310 are arranged at positions having a phase difference of 90 degrees, and are arranged at an equiangular (180 degrees) phase.
  • equiangular 180 degrees
  • first arm 309 and the second arm 310 have the inclined portions 309a and 310a, and the second arm 310 has the protruding portion 311, respectively.
  • FIG. 12 is a perspective view of the protective cap and lancet body of the puncture needle cartridge according to Embodiment 3 of the present invention.
  • the same components as those in FIG. 4 are denoted by the same reference numerals, and description of overlapping portions is omitted.
  • the lancet 404 includes a first arm 409 and a second arm 410 having a protrusion 411.
  • the first arm 409 and the second arm 410 are two symmetrically arranged with the lancet body 203 as an axis of symmetry. Yes.
  • inclined portions 409a and 410a are provided on the chucking portion 206 side of the distal ends of the first arm 409 and the second arm 410.
  • the protrusion 411 has a shape protruding from the tip of the second arm 410.
  • both arms When the rear end of the lancet body 203 is pushed by a user's erroneous operation, both arms have protrusions compared to the first embodiment, so that even if one arm is broken, the puncture needle 207 is more exposed. It has a structure that is difficult to do.
  • the protrusions 411 are provided on both the first arm 409 and the second arm 410, but may be provided only on the first arm 409.
  • FIG. 13 is a perspective view of the protective cap and lancet body of the puncture needle cartridge according to the fourth embodiment of the present invention.
  • the same components as those in FIG. 4 are denoted by the same reference numerals, and description of overlapping portions is omitted.
  • the lancet 504 includes four first arms 509 and four second arms 510 having protrusions 511.
  • first arms 509 are arranged at equal intervals with the lancet body 203 as an axis of symmetry and shifted in phase by 90 degrees in the axial direction, and each has the same shape.
  • second arms 510 are arranged at equal intervals, and each has the same shape.
  • inclined portions 509a and 510a are provided on the chucking portion 206 side of the tip ends of the first arm 509 and the second arm 510.
  • the protrusion 511 has a shape protruding from the tip of the second arm 510.
  • each of the four second arms 510 has one protrusion 511, but of the four, only two protrusions 511 at symmetrical positions may be provided. Absent.
  • the projection 511 may be provided on the first arm 509 as in the third embodiment (see FIG. 12).
  • the fourth embodiment has four second arms 510.
  • the number of the second arms 510 is not limited to four as long as it has one or more than two.
  • FIG. 14 is a perspective view of the protective cap and lancet body of the puncture needle cartridge according to the fifth embodiment of the present invention.
  • the same components as those in FIG. 4 are denoted by the same reference numerals, and description of overlapping portions is omitted.
  • the lancet 604 includes a first arm 609 and a second arm 610 having a triangular rib shape.
  • the shape of the first arm 209 and the shape of the second arm 210 are similar.
  • the shape of the second arm 610 is a triangular rib shape different from the shape of the first arm 609.
  • two first arms 609 are arranged in the same shape with the lancet body 203 as an axis of symmetry, and the second arm 610 is also in the same position as the first arm 609. Are arranged in the same shape.
  • inclined portions 609a and 610a are provided on the chucking portion 206 side of the distal ends of the first arm 609 and the second arm 610.
  • the shape of the first arm or the second arm is not limited to the triangular rib shape, and may be curved, bent, tapered, or may have an inclined portion.
  • the way of bending and the directionality of the inclined portion are limited. That is, it is necessary to limit the shape of the arm so that the lancet body 203 can easily move in the direction opposite to the exposure direction of the puncture needle inside the puncture needle holder 201 and the movement is restricted in the exposure direction of the puncture needle. There is.
  • FIG. 15 and 16 are cross-sectional views of the puncture needle cartridge according to the present embodiment.
  • FIG. 15 shows a state of the puncture needle cartridge before (unused) attachment to the puncture device
  • FIG. 16 shows puncture after being attached to the puncture device, puncturing, and withdrawn from the puncture device (used) The state of the needle cartridge is shown.
  • the same components as those of the puncture needle cartridge 105 shown in FIGS. 3 and 4 are denoted by the same reference numerals as those in FIGS. Is omitted.
  • the puncture needle cartridge 705 shown in FIGS. 15 and 16 adopts a configuration in which the first arm 209 is deleted from the puncture needle cartridge 105 shown in FIGS. 3 and 4.
  • the second arm 210 is located inside the puncture needle holder 201 when the puncture needle cartridge 705 is not used.
  • the puncture needle 207 is not exposed from the puncture needle holder 201.
  • the lancet main body 203 remains in the axial direction (puncture direction) of the puncture needle 207. It is restricted from moving and is not punctured again.
  • the second arm 210 that restricts the movement of the lancet body 203 is provided, so that the used puncture needle cartridge 705 can be reused. Exposure of the puncture needle 207 of the used puncture needle cartridge 705 can be prevented.
  • the holder engaging portion 213 is formed in a bifurcated shape so that the holder engaging portion 213 sandwiches the puncture needle holder 201 in the used state, thereby Even if the second arm 210 is pressed from the outside in the direction perpendicular to the axial direction, the second arm 210 can be prevented from entering the inside of the puncture needle holder 201 from the opening 211.
  • the shape of the holder engaging portion 213 is not limited to the shape shown in FIG. 16, and the second arm 210 extends from the opening 211 to the inside of the puncture needle holder 201, such as the shape of the second arm disclosed in other embodiments. Other shapes may be used as long as they can be prevented from entering.
  • the names puncture needle cartridge and puncture device are used. However, this is for convenience of explanation, and it is needless to say that the puncture device, the puncture device, and the like may be used.
  • each part constituting the puncture needle cartridge for example, the type, number and connection method of the cartridge may be any.
  • the puncture needle cartridge and the puncture device according to the present invention include a puncture needle for exchanging a puncture device used for blood collection and the like, and the puncture needle is moved inside the puncture device in order to perform measurement and inspection using body fluid such as blood. It is useful as a disposable puncture needle cartridge that has a puncture needle holder that is housed as possible and can be exchanged simultaneously with the puncture needle.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dermatology (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

La présente invention concerne une cartouche d’aiguille pour ponction et un dispositif de ponction qui sont configurés de sorte à prévenir la réutilisation d'une lancette utilisée par un utilisateur et l'exposition d'une aiguille pour ponction. Une lancette (204) constituant une cartouche d’aiguille pour ponction (105) a un premier bras (209) et un second bras (210) qui sont élastiquement déformables et sont localisés à des positions axialement différentes l’une de l’autre. La cartouche d’aiguille pour ponction (105) peut se trouver dans les états suivants : un « premier état » dans lequel la pointe du premier bras (209) est exposée à partir d’un support d’aiguille pour ponction (201) et le mouvement d’un corps de lancette (203) est restreint, un « deuxième état » dans lequel la pointe du premier bras (209) et la pointe du second bras (210) sont rangées dans le support d’aiguille pour ponction (201) et le corps de la lancette (203) peut se déplacer dans la direction de l'axe de l'aiguille pour ponction (207), et un « troisième état » dans lequel à la fois la pointe du premier bras (209) et la pointe du second bras (210) sont exposées à partir du support d’aiguille pour ponction (201) et le mouvement du corps de la lancette (203) est restreint.
PCT/JP2009/005299 2008-10-09 2009-10-09 Cartouche d’aiguille pour ponction et dispositif de ponction WO2010041473A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2008262980 2008-10-09
JP2008-262980 2008-10-09
JP2009-194582 2009-08-25
JP2009194582 2009-08-25

Publications (1)

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WO2010041473A1 true WO2010041473A1 (fr) 2010-04-15

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6278336B2 (ja) * 2014-01-24 2018-02-14 ニプロ株式会社 穿刺器具
JP6549915B2 (ja) * 2014-06-30 2019-07-24 Ｐｈｃホールディングス株式会社 穿刺針カートリッジおよびこれが装着される穿刺器具
JP6374099B2 (ja) 2015-03-31 2018-08-15 富士フイルム株式会社 穿刺装置および光音響計測装置
JP6709545B2 (ja) * 2018-01-16 2020-06-17 ニプロ株式会社 ランセット

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5439473A (en) * 1993-12-13 1995-08-08 Modulohm A/S Safety lancet
WO2002043591A2 (fr) * 2000-11-28 2002-06-06 Owen Mumford Limited Perfectionnements relatifs a des dispositifs intradermiques autopiqueurs
JP2005230570A (ja) * 1994-11-29 2005-09-02 Apurusu Kk ランセットアッセンブリ
JP2005312763A (ja) * 2004-04-30 2005-11-10 Arkray Inc 穿刺針カートリッジ、穿刺器具、先端ユニットおよびアダプタ
WO2006046570A1 (fr) * 2004-10-25 2006-05-04 Arkray, Inc. Lancette et dispositif a lancette l’utilisant
WO2007077930A1 (fr) * 2006-01-05 2007-07-12 Matsushita Electric Industrial Co., Ltd. Appareil pour analyses sanguines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5439473A (en) * 1993-12-13 1995-08-08 Modulohm A/S Safety lancet
JP2005230570A (ja) * 1994-11-29 2005-09-02 Apurusu Kk ランセットアッセンブリ
WO2002043591A2 (fr) * 2000-11-28 2002-06-06 Owen Mumford Limited Perfectionnements relatifs a des dispositifs intradermiques autopiqueurs
JP2005312763A (ja) * 2004-04-30 2005-11-10 Arkray Inc 穿刺針カートリッジ、穿刺器具、先端ユニットおよびアダプタ
WO2006046570A1 (fr) * 2004-10-25 2006-05-04 Arkray, Inc. Lancette et dispositif a lancette l’utilisant
WO2007077930A1 (fr) * 2006-01-05 2007-07-12 Matsushita Electric Industrial Co., Ltd. Appareil pour analyses sanguines

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