JP2010088926A - Puncture needle cartridge and puncture device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a puncture needle cartridge which can prevent reuse of a used lancet and exposure of a puncture needle, and a puncture device. <P>SOLUTION: A lancet 204 constituting the puncture needle cartridge 105 includes elastically deformable first and second arms 209, 210 on mutually different positions in the axial direction. The puncture needle cartridge 105 takes a first state wherein only the first arm 209 projects from an opening part 211 of a puncture needle holder 201 to control movement of the lancet 204, a second state wherein the first and second arms 209, 210 are housed in the puncture needle cartridge 105 and the puncture needle 207 can project out from the puncture needle holder 201, and a third state wherein both the first and second arms 209, 210 project out from the opening part 211 to control movement of the lancet 204. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  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.

  Various puncture devices for collecting blood and disposable lancets used therewith have been developed. In such a puncture device, when attaching or removing the lancet to / from the puncture device, there is a risk that the puncture needle exposed from one end of the lancet may be mistakenly inserted into a hand or the like. In response to the above-mentioned problems, a puncture needle cartridge that has a cap that surrounds the puncture needle and has no risk of direct contact with the puncture needle and allows the lancet to be attached to and detached from the puncture device, and prevents reuse even if it is remounted. A puncture needle cartridge that can be used has been developed (see, for example, Patent Document 1).

JP 2000-245717 A

  However, in such a conventional puncture needle cartridge, in the state of a used lancet alone, the puncture needle is not fixed to the cartridge, and the puncture needle may be exposed, and there is a risk of a needle stick accident or infection was there.

  This invention is made | formed in view of this point, and it aims at providing the puncture needle cartridge and puncture apparatus which can prevent reuse of a used lancet and exposure of a 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 an outer side of the puncture needle holder when the lancet is at a predetermined position in the axial direction of the puncture needle. The puncture needle cartridge has a first state in which only the first arm projects from the opening to restrict movement of the lancet, and the first arm. And the second arm are housed in the puncture needle cartridge so that the puncture needle can protrude from the puncture needle holder, and both the first arm and the second arm are opened from the opening. The structure which can protrude and can take the 3rd state which controls the movement of the said lancet is taken.

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. When the puncture needle cartridge in the first state is mounted, the first arm is elastically The lancet held by the plunger is deformed so that it can be driven in the axial direction of the puncture needle, and when the puncture needle cartridge is removed from the puncture device, the lancet and the plunger are released from holding. The puncture needle cartridge is changed to the third state.

  According to the present invention, the lancet constituting the puncture needle cartridge has the first arm and the second arm that can be elastically deformed at mutually different positions in the axial direction, so that the patient can use the used puncture needle cartridge. Even if it is remounted, it is possible to prevent the puncturing operation again.

  Further, in the puncture needle cartridge after use, exposure of the needle tip after use can be prevented by the first arm or the second arm abutting against the puncture needle holder. In addition, since the first and second arms that restrict the axial movement of the lancet after use are provided, even if either the first arm or the second arm is damaged, the lancet is damaged. The other arm that was not present can prevent the puncture needle from being exposed and is even safer.

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 | tip part of the puncture apparatus which concerns on the said Embodiment 1, and a puncture needle cartridge transparently, and a peripheral part The perspective view of the puncture needle cartridge which concerns on the said Embodiment 1. FIG. Perspective view of puncture apparatus and puncture needle cartridge protective cap and lancet body according to Embodiment 1 above 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. 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. Perspective view of puncture device and puncture needle cartridge protective cap and lancet body according to Embodiment 2 of the present invention A perspective view of a protective cap and a lancet body of a puncture device and a puncture needle cartridge according to Embodiment 3 of the present invention 4 is a perspective view of a puncture device according to Embodiment 4 of the present invention, a protective cap for a puncture needle cartridge, and a lancet body. Perspective view of puncture apparatus and puncture needle cartridge protective cap and lancet body according to Embodiment 5 of the present invention

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment 1)
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.

  As shown in FIGS. 1 and 2, the puncture device 100 includes a puncture device main body 101 and a puncture needle cartridge 105.

  The puncture device main body 101 includes a base mechanism 102, a plunger 103, a stub 104, a puncture needle cartridge 105, a disposal member 106, and an insertion port 107.

  The base mechanism 102 holds the puncture needle holder 201 (see FIG. 3) of the puncture needle cartridge 105.

  The distal end portion of the plunger 103 grips the chucking portion 206 (see FIG. 3) 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.

  3 and 4, the puncture needle cartridge 105 includes a puncture needle holder 201, a lancet body 203, a protective cap 202 that protects the puncture needle 207 provided at one end of the lancet body, a lancet body 203, And a lancet 204 having a protective cap 202.

  The puncture needle holder 201 includes an inner diameter portion 205 and an opening 211, and the lancet 204 includes a protection cap 202, a lancet body 203, a chucking portion 206, a puncture needle 207 built in the lancet body 203, a protection cap 202 and a lancet. The main body 203 is configured to include a breaking portion 208 that can separate the main body 203, a first arm 209, and a second arm 210.

  The puncture needle holder 201 holds the lancet 204 so that the lancet 204 can move in the axial direction of the puncture needle 207. The puncture needle holder 201 has an opening 211 that protrudes outward from the puncture needle holder 201 when the lancet 204 is at a predetermined position in the axial direction of the puncture needle 207.

  The puncture needle holder 201 and the lancet 204 are fixedly 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 end portion of the plunger 103 at a chucking portion 206 provided at the other end of the lancet body 203.

  The protective cap 202 covers the puncture needle of the lancet body 203 and is housed in the inner diameter portion 205 of the cylindrical puncture needle holder 201 as a lancet 204 composed of the protective cap 202 and the lancet body 203.

  The lancet body 203 has a first arm 209 and a second arm 210 that can be elastically deformed at different positions in the axial direction. Further, the second arm 210 is provided with a protrusion 212.

  The lancet body 203 and the protective cap 202 are integrally formed of an elastic material such as resin, for example, polyethylene resin, and has a fracture portion 208.

  The lancet 204 includes a lancet main body 203 having a puncture needle 207 and a protective cap 202 that is formed so as to cover part or all of the tip of the puncture needle 207 and is separable from the puncture needle 207.

  The puncture needle 207 punctures the skin to collect body fluid and the like.

  Here, the puncture needle cartridge 105 has a first state in which only the first arm 209 protrudes from the opening 211 and restricts the movement of the lancet 204, and the first arm 209 and the second arm 210 puncture. The second state in which the puncture needle 207 can be protruded from the puncture needle holder 201 within the needle cartridge 105, and the first and second arms 209 and 210 are both protruded from the opening 211 to move the lancet 204. And a third state that regulates.

  Operations for preventing reuse and exposure of the puncture needle cartridge 105 and the puncture apparatus main body 101 configured as described above will be described.

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 where the puncture needle cartridge 105 is attached to the puncture apparatus main body 101, and FIG.
FIG. 8 shows a state at the time of puncture, FIG. 9 shows a state of discarding, and FIG. 10 shows a state of remounting after disposal.

[Before puncture needle cartridge 105 is mounted (FIG. 5)]
Only the 1st arm 209 protrudes from the opening part 211 (refer FIG. 3) of the puncture needle holder 201, and is the 1st state which controls the movement of the lancet main body 203. FIG.

[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 apparatus main body 101 side performs a charge operation for puncture, and preparation for puncture is completed.

[When removing protective cap 202 (FIG. 7)] (Without protective cap 202)
When the puncture needle cartridge 105 is mounted (FIG. 6), the protective cap 202 is removed from the lancet body 203.

[After puncturing (FIG. 8)] (without protective cap 202)
The puncture needle 207 of the lancet main body 203 fired from the puncture device main body 101 punctures the skin when the puncture button provided in the puncture device main body 101 is pressed. FIG. 8 shows a state where the puncture needle 207 has returned after the puncture. At this time, the first arm 209 and the second arm 210 are present inside the puncture needle holder 201. The first arm 209 and the second arm 210 are housed in the puncture needle cartridge 105, and the puncture needle 207 is in a second state in which it can protrude from the puncture needle holder 201.

[After disposal (Fig. 9)] (Without protective cap 202)
As shown in FIGS. 9A and 9B, 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 a third state in which the first arm 209 and the second arm 210 both project from the opening 211 (see FIG. 3) of the puncture needle holder 201 and restrict the movement of the lancet body 203. Yes. In the discarded puncture needle cartridge 105, the first arm 209 and the second arm 210 are engaged with the puncture needle holder 201 even if the rear end (see FIG. 9A) of the lancet body 203 is pushed by a user's erroneous operation. The exposure of the puncture needle 207 is prevented.

[Recharge after disposal (Fig. 10)]
FIG. 10 shows a state where the discarded puncture needle cartridge 105 is reattached to the puncture apparatus main body 101. Although it is possible to reattach the puncture needle cartridge 105 to the puncture device main body 101 after disposal, the second arm 210 exists outside the puncture needle holder 201 and the second arm 210 and the puncture needle holder 201 are engaged. This prevents the lancet body 203 from moving forward and performing a puncturing operation. That is, since the discarded (used) puncture needle cartridge 105 cannot be reused by mistake, it is safe.

  As described above, the puncture needle cartridge 105 has the first state in which only the first arm 209 protrudes from the opening 211 (see FIG. 3 or FIG. 9B) and restricts the movement of the lancet 204; The first arm 209 and the second arm 210 are accommodated in the puncture needle cartridge 105, and the puncture needle 207 can protrude from the puncture needle holder 201, and the first and second arms 209 and 210 are Both can project from the opening 211 (see FIG. 3) to take a third state in which the movement of the lancet 204 is restricted.

The lancet 204 includes a first arm 209 and a second arm 210 on the lancet body 203.
Is provided. Prior to use, the second arm 210 is disposed inside the puncture needle holder 201. When the puncture needle cartridge 105 including the lancet 204 is set on the puncture apparatus main body 101 and the puncture needle cartridge 105 including the lancet 204 is discarded from the puncture apparatus main body 101 after the puncture operation, the puncture needle holder 201 is pushed by the disposal member 106. As a result, the second arm 210 moves from the inside of the puncture needle holder 201 to the position of the opening 211 (see FIG. 3) and protrudes to the outside.

  Since the second arm 210 is outside the puncture needle holder 201, even if the puncture needle cartridge including the lancet 204 after use is set in the puncture apparatus main body 101 and the puncture operation is performed, the second arm 210 It directly contacts the puncture needle holder 201 and prevents the puncture operation of the lancet body 203. Moreover, since the 2nd arm 210 has the intensity | strength more than the 1st arm 209, a user's forcible operation can be prevented.

  In this way, reuse of the used lancet 204 and exposure of the puncture needle 207 can be reliably prevented.

  As described above in detail, according to the present embodiment, 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 has a first state in which only the first arm 209 protrudes from the opening 211 and restricts the movement of the lancet 204, the first arm 209, and the second arm 210. Is housed in the puncture needle cartridge 105, the second state in which the puncture needle 207 can project from the puncture needle holder 201, and both the first arm and the second arm project from the opening 211, and the lancet 204 And a third state that restricts movement of With this configuration, even if the patient recharges the used puncture needle cartridge 105, the puncture operation can be prevented again.

  Further, in the puncture needle cartridge 105 after use, the first arm 209 or the second arm 210 abuts against the puncture needle holder 201, thereby preventing the needle tip from being used after exposure.

  In addition, since the first and second arms 209 and 210 that restrict the axial movement of the lancet after use are provided, either the first arm 209 or the second arm 210 may be damaged. Even if it exists, exposure of a puncture needle can be prevented by the other arm which was not damaged, and it is much safer.

  In the present embodiment, the first arm 209 or the second arm 210 is not a simple reattachment prevention function but has the following effects. That is, the reuse prevention function can be strengthened by having two arms. Moreover, prevention of exposure of the puncture needle after use can be strengthened.

  Further, in the shape of the arm, by providing the protruding portion branched from the arm, it is more difficult to open the arm by engaging with the holder, so that there is an effect that helps to prevent reuse and exposure.

  In particular, in the present embodiment, even if the protective cap is recapped and attached to the puncture apparatus main body 101, there is a specific effect that it cannot be reused.

Here, the basics of the safety measures in the puncture device are the following four points.
(1) Prevention of reuse: Do not allow used needles to be reused.
(2) Prevention of reattachment: Do not reattach a used needle to the device.
(3) Recap prevention: Do not reattach (recap) the protective cap to the used needle.
(4) Prevention of needle exposure: Prevent the needle tip from protruding from the puncture needle cartridge (exposure prevention).

(Embodiment 2)
FIG. 11 is a perspective view of the protective cap and lancet body of the puncture device and 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.

  In FIG. 11, the lancet 304 has a first arm 309 and a second arm 310 arranged in different phases.

  While the first arm 209 and the second arm 210 of the first embodiment are arranged in the same phase, in the second embodiment, 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.

  According to the second embodiment, in addition to the effects of the first embodiment, there are the following effects. 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, it can be considered that after discarding, the arm is grasped with a finger and the needle is exposed. On the other hand, in the second embodiment, since 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.

(Embodiment 3)
FIG. 12 is a perspective view of the protective cap and lancet body of the puncture device and 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.

  In FIG. 12, the lancet 404 includes a first arm 409 and a second arm 410 having protrusions 411.

  When the rear end portion of the lancet body 203 is pushed by a user's erroneous operation, the puncture needle is less exposed compared to the first embodiment.

  In the third embodiment, the projections 411 are provided on both the first arm 409 and the second arm 410, but may be provided only on the first arm 409 or only on the second arm 410.

(Embodiment 4)
FIG. 13 is a perspective view of the protective cap and lancet body of the puncture device and puncture needle cartridge according to Embodiment 4 of the present invention. The same components as those in FIGS. 4 and 12 are denoted by the same reference numerals, and description of overlapping portions is omitted.

  In FIG. 13, the lancet 504 includes four first arms 209 and four second arms 410 having protrusions 411.

  While the number of the second arms 210 in the first embodiment is two, the number of the second arms 410 is four in the fourth embodiment.

  Note that the number of the second arms 410 is not limited to four as long as it has one or more than two.

(Embodiment 5)
FIG. 14 is a perspective view of the protective cap and lancet body of the puncture device and puncture needle cartridge according to Embodiment 5 of the present invention. The same components as those in FIGS. 4 and 12 are denoted by the same reference numerals, and description of overlapping portions is omitted.

  In FIG. 14, the lancet 604 includes a first arm 209 and a second arm 610 having a triangular rib shape.

  In the first embodiment, the shape of the first arm 209 and the shape of the second arm 210 are similar. In the fifth embodiment, the shape of the second arm 610 is a triangular rib shape different from the shape of the first arm 209.

  Note that 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. However, from the viewpoint of preventing exposure of the needle and preventing reuse, the way of bending and the directionality of the inclined portion are limited. That is, it is necessary to set the direction so as to act in the direction opposite to the direction in which the needle is exposed.

  The above description is an illustration of a preferred embodiment of the present invention, and the scope of the present invention is not limited to this.

  In the above-described embodiments, the names puncture needle cartridge and puncture device are used. However, this is for convenience of explanation, and it is a matter of course that a puncture device, a puncture device, or the like may be used.

  In addition, each part constituting the puncture needle cartridge, for example, the type, number and connection method of the cartridges 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.

DESCRIPTION OF SYMBOLS 100 Puncture apparatus 101 Puncture apparatus main body 102 Base mechanism 103 Plunger 104 Stub 105 Puncture needle cartridge 106 Disposal member 107 Insertion port 201 Puncture needle holder 202 Protective cap 203 Lancet main body 204,304,404,504,604 Lancet 205 Inner diameter part 206 Chucking Part 207 Puncture needle 208 Breaking part 209, 309, 409 First arm 210, 310, 410, 610 Second arm 211 Opening part 212, 411 Projection part

Claims (11)

A lancet that has a puncture needle that punctures the skin, a protective cap that covers part or all of the tip of the puncture needle and that is separable from the puncture needle, and the lancet A puncture needle cartridge comprising a puncture needle holder for holding the lancet so as to be movable in the axial direction of the needle,
The lancet is a puncture needle cartridge comprising at least a first arm and a second arm that are elastically deformable at different positions in the axial direction. A lancet that has a puncture needle that punctures the skin, a protective cap that covers part or all of the tip of the puncture needle and that is separable from the puncture needle, and the lancet A puncture needle cartridge comprising a puncture needle holder for holding the lancet so as to be movable in the axial direction of the needle,
The lancet has at least a first arm and a second arm that are elastically deformable at different positions in the axial direction,
The puncture needle holder has an opening protruding outward from the puncture needle holder when the lancet is at a predetermined position in the axial direction of the puncture needle,
The puncture needle cartridge has a first state in which only the first arm protrudes from the opening and restricts the movement of the lancet;
A second state in which the first arm and the second arm are accommodated in a puncture needle cartridge so that the puncture needle can protrude from the puncture needle holder;
A puncture needle cartridge in which both the first arm and the second arm protrude from the opening and can take a third state in which movement of the lancet is restricted.   The puncture needle cartridge according to claim 1 or 2, wherein the first arm and / or the second arm has a protrusion.   The puncture needle cartridge according to claim 3, wherein the protrusion is a plurality of types of protrusions.   The puncture needle cartridge according to claim 3, wherein the protrusion has a curved shape, a bent shape, a tapered shape, or a shape having an inclined portion.   The puncture needle cartridge according to claim 3, wherein the protrusion is a protrusion protruding in a shape branched from the first arm or the second arm. The protrusion is composed of a first protrusion and a second protrusion,
The puncture needle cartridge according to claim 3, wherein the first protrusion and the second protrusion are arranged at equal intervals. The protrusion is composed of a first protrusion and a second protrusion,
The puncture needle cartridge according to claim 3, wherein the first protrusion and the second protrusion are arranged at an equal angle. The protrusion is composed of a first protrusion and a second protrusion,
The puncture needle cartridge according to claim 3, wherein the first protrusion or the second protrusion is disposed at an equal distance from the tip of the protective cap. A puncture device to which a cartridge type puncture needle cartridge for puncturing the skin is attached,
The puncture needle cartridge is the puncture needle cartridge according to claim 1,
A casing for holding a puncture needle holder of the puncture needle cartridge;
A puncture device comprising a plunger that holds the lancet and drives the puncture needle in the axial direction. A puncture device to which a cartridge type puncture needle cartridge for puncturing the skin is attached,
The puncture needle cartridge is the puncture needle cartridge according to any one of claims 1 to 9,
A casing for holding a puncture needle holder of the puncture needle cartridge;
A plunger for holding the lancet and driving it in the axial direction of the puncture needle,
When the puncture needle cartridge in the first state is mounted, the first arm is elastically deformed so that the lancet held by the plunger can be driven in the axial direction of the puncture needle, and the puncture needle When the cartridge is removed from the puncture device, the puncture device changes the puncture needle cartridge to the third state in response to release of the holding of the lancet and the plunger.

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