JP4454302B2 - Puncture needle cartridge - Google Patents

Description

  The present invention relates to a puncture needle cartridge, and more particularly, to a cartridge that holds a puncture needle for replacement of a puncture device used for blood collection or the like when measuring a blood sugar level or the like.

  Diabetes patients themselves measure blood sugar levels several times a day. In this measurement, a fingertip or arm is punctured using a puncture device, and a small amount of blood collected from the punctured site is reacted with the biosensor.

FIG. 7 is a perspective view showing a conventional puncture device.
As shown in FIG. 7, the conventional puncture device 101 includes a removable disposable puncture needle 105, a first spring 132 for firing the puncture needle 105, and a second for retracting the launched puncture needle 105. A cap having a cylindrical main body 130 having a puncture button 117 for releasing the spring 134 and the compressed first spring, an opening 109, and a puncture portion pressing surface 136, and covering the puncture needle 105 Part 153.

The operation of the conventional puncture device will be described below.
First, the operator removes the cap part 153 from the main body part 130, attaches the puncture needle 105 to the main body part 130, and puts the cap part 153 on the main body again. Then, the first spring 132 is compressed so that puncture is possible, the puncture portion pressing surface 136 of the cap portion 153 is applied to a puncture portion such as a fingertip, and the puncture button 117 is pressed. Thereby, the puncture needle 105 is driven out, and the puncture needle 105 protrudes from the opening 109 to puncture the puncture portion. Thereafter, the puncture needle 105 is immediately retracted from the puncture portion by the second spring 134.

  In addition, since it is very dangerous from the viewpoint of hygiene to reuse the puncture needle 105 once used, it is necessary to replace the puncture needle 105 in the next use. At the time of this replacement, the puncture needles 105 were taken out one by one and attached to the puncture device 101, and the cap at the tip of the needle was removed to expose the needle to prepare for puncture. Also, this was done in reverse for disposal. (For example, refer to Patent Document 1.)

Also, there are some that store several puncture needles and perform puncture operations using them individually in order. After puncturing, the puncture needle can be individually removed from the device. As drive means for moving the puncture needle back and forth, there is one that uses the elasticity of a leaf spring provided on the puncture needle (see, for example, Patent Document 2).
Japanese Unexamined Patent Publication No. 2000-237172 (page 3-4, FIG. 1) US Pat. No. 4,794,926 (page 3-4, FIG. 1)

  However, since the puncture needle replacement work is complicated in the conventional puncture device, it is considered that the user who has to measure several times a day is troublesome to replace the puncture needle. There was a problem that it tends to be used multiple times for blood collection. The use of a single puncture needle a number of times is problematic for hygiene reasons, particularly when one puncture device is used by more than one person. In addition, since the puncture needle is manufactured for single use once and the tip is quickly dulled if used a plurality of times, continuous use of the puncture needle also causes an increase in pain for the user.

  In addition, the conventional puncture device has a problem that when the puncture needle is replaced, the user directly holds the puncture needle with his / her finger, and the fingertip may be accidentally injured with the used puncture needle. . This has been a big problem especially for patients who are blind because of complications of diabetes.

  The present invention has been made to solve the above-described conventional problems, and an object of the present invention is to provide a puncture needle cartridge that can safely and easily replace a puncture needle of a puncture device.

  The puncture needle cartridge according to claim 1 of the present invention includes a bottom case in which a plurality of puncture needles are connected in parallel and each in an independent state, and a slide cover slidable with respect to the bottom case, The slide cover has a convex portion that lifts the plurality of puncture needles one by one sequentially by a predetermined angle when sliding.

  The puncture needle cartridge according to claim 2 of the present invention is the puncture needle cartridge according to claim 1, wherein the used puncture needle and / or biosensor is stored in the bottom case.

  The puncture needle cartridge according to a third aspect of the present invention is the puncture needle cartridge according to the first aspect, wherein the bottom case and the puncture needle are integrally formed of resin, and a connecting portion thereof is flexible. It is intended.

  The puncture needle cartridge according to claim 1 of the present invention includes a bottom case in which a plurality of puncture needles are connected in parallel and each in an independent state, and a slide cover slidable with respect to the bottom case, Since the slide cover has a convex portion that sequentially lifts the plurality of puncture needles one by one by a predetermined angle when sliding, the puncture needle can be exchanged safely and easily.

  The puncture needle cartridge according to claim 2 of the present invention is the puncture needle cartridge according to claim 1, wherein used puncture needles and / or biosensors are stored in the bottom case. By storing and storing the used puncture needle or biosensor and the cartridge as one body, the waste volume can be reduced.

  The puncture needle cartridge according to a third aspect of the present invention is the puncture needle cartridge according to the first aspect, wherein the bottom case and the puncture needle are integrally formed of resin, and a connecting portion thereof is flexible. Since it was made, it has the effect that the structure can be made simple.

(Embodiment 1)
FIG. 1 is an external perspective view of the puncture needle cartridge according to the first embodiment of the present invention, and FIG. 2 is an external perspective view showing a state where the slide cover of the puncture needle cartridge according to the first embodiment of the present invention is removed. FIG. 3A is an external perspective view of the slide cover of the puncture needle cartridge according to the first embodiment of the present invention, and FIG. 6 is a diagram showing the closed slide cover of the puncture needle cartridge according to the first embodiment of the present invention. It is an external appearance perspective view which shows the state.

  As shown in FIGS. 1, 2, 3 (a), and 6, the puncture needle cartridge 18 according to the first embodiment includes a bottom case 3 and a slide cover 2 that can be attached to and detached from the bottom case 3. It is configured. The puncture needle cartridge 18 is provided with a frame portion 19 of the puncture needle 5 in which the puncture needles 5 are formed by resin integral molding in a line. Each puncture needle 5 is made of a resin thin film (for example, a puncture needle separation groove 5a). , The thickness of the puncture needle 5 is connected in a state where it is buried in the frame 19. The slide cover 2 is provided with a convex portion 6 for lifting the puncture needles 5 one by one. Further, the bottom case 3 includes a puncture device guide portion 21 and an inner cylindrical portion 23 that are used when the puncture needle 5 is removed from the puncture device and discarded, and a biosensor insertion port 25 for discarding used biosensors. Is provided.

The operation will be described below.
First, a method for attaching the puncture needle to the puncture device will be described.

  3 (b) to 3 (e) are diagrams for explaining the operation of the puncture needle cartridge according to the first embodiment of the present invention. FIGS. 4 (a) to 4 (c) are diagrams illustrating the present invention. It is a figure for demonstrating the method to attach the puncture needle which the puncture needle cartridge in Embodiment 1 hold | maintains to a puncture device.

  Here, as shown in FIG. 4 (a), the puncture device 1 has a substantially cylindrical puncture needle loading chamber 10 for loading and holding the puncture needle 5 and a puncture needle holding rod provided with a puncture needle holding claw 26. 4, a flywheel 11 that is rotatably supported, a flywheel spring 13 that biases the flywheel 11 to rotate, and a rotational motion of the flywheel 11 is converted into a linear motion of the puncture needle holding rod 4. For this purpose, a link 19 connecting them, a puncture needle set lever 8 for preparing for puncture, a puncture button 17 that triggers a puncture operation, and a puncture depth adjustment ring that adjusts the puncture depth of the puncture needle 5 40.

  The slide cover 2 is slidable as shown in FIGS. 3B to 3D, and when the puncture needle is attached, the slide cover 2 is stopped at a position where the attached puncture needle 5 is lifted (FIG. 3C). ). At this time, the puncture needle 5 lifted to the convex portion 6 is in a state where its rear end portion is lifted by a predetermined angle (FIG. 3 (e)).

  Then, the puncture device 1 is pushed into the puncture needle 5 while matching the central axis of the puncture needle loading chamber 10 with the axis of the puncture needle 5 on the puncture needle cartridge 18 (FIG. 4A). The puncture needle 5 is press-fitted until the rear end portion of the puncture needle 5 guided into the puncture needle holding rod 4 comes into contact with the bottom surface of the puncture needle loading chamber 10, and the puncture needle 5 is fitted into the puncture needle loading chamber. At this time, the neck portion 5b of the puncture needle engages with the puncture needle holding claw 26 (FIG. 4B). Here, when the puncture device 1 is to be pulled away from the puncture needle cartridge 18, a force to tear the resin thin film at the puncture needle separation groove 5a is generated, and the operator applies further force against this force. The puncture needle 5 is detached from the puncture needle cartridge 18, and the puncture needle 5 is attached to the puncture device 1 (FIG. 4C).

  Thereafter, the puncture preparation is completed by tilting the puncture needle set lever 8 by a predetermined angle to perform puncture, and the puncture needle holding rod 4 is moved directly from the inside of the puncture device 1 to the outside by pressing the puncture button 17. The puncture operation is performed by moving.

Next, a method for discarding the puncture needle 5 will be described.
5 (a) and 5 (b) are diagrams for explaining a puncture needle discarding method according to Embodiment 1 of the present invention.

  After finishing the puncturing operation, the puncture depth adjustment ring 40 side of the puncture device 1 is inserted into the puncture device guide portion 21 of the puncture needle cartridge 18. At this time, the distal end of the inner cylindrical portion 23 pushes the puncture needle holding claw 26 outward, and at the same time, the puncture needle extraction claw 22 at the distal end portion of the inner cylindrical portion 23 engages with the neck portion 5b of the puncture needle (FIG. 5 (a)). Thereafter, the puncture device 1 is pulled out and the puncture needle 5 is pushed into the puncture needle cartridge 18, whereby the disposal operation of the used puncture needle 5 is completed (FIG. 5 (b)).

  Thus, since the puncture needle cartridge according to the first embodiment lifts only the puncture needle attached to the puncture device, the adjacent puncture needle does not get in the way, and the puncture needle can be exchanged safely and easily. In addition, since the used puncture needles and biosensors are collected in the bottom case, the puncture needles and biosensors that have become waste and the cartridge can be stored and stored together, and the waste volume is compact. Can be. Further, since the neck portion of the puncture needle and the puncture needle holding claw are engaged, it is possible to prevent the puncture needle from falling off.

  INDUSTRIAL APPLICABILITY The present invention is useful as a puncture needle cartridge that holds a puncture needle for replacement of a puncture device used for blood collection or the like when measuring a blood sugar level or the like.

It is an external appearance perspective view of the puncture needle cartridge in Embodiment 1 of this invention. It is an external appearance perspective view which shows the state which removed the slide cover of the puncture needle cartridge in Embodiment 1 of this invention. It is an external appearance perspective view of the slide cover of the puncture needle cartridge in Embodiment 1 of this invention. It is a figure for demonstrating operation | movement of the puncture needle cartridge in Embodiment 1 of this invention. It is a figure for demonstrating operation | movement of the puncture needle cartridge in Embodiment 1 of this invention. It is a figure for demonstrating operation | movement of the puncture needle cartridge in Embodiment 1 of this invention. It is a figure for demonstrating operation | movement of the puncture needle cartridge in Embodiment 1 of this invention. It is a figure for demonstrating the method to attach the puncture needle which the puncture needle cartridge in Embodiment 1 of this invention hold | maintains to a puncture device. It is a figure for demonstrating the method to attach the puncture needle which the puncture needle cartridge in Embodiment 1 of this invention hold | maintains to a puncture device. It is a figure for demonstrating the method to attach the puncture needle which the puncture needle cartridge in Embodiment 1 of this invention hold | maintains to a puncture device. It is a figure for demonstrating the disposal method of the puncture needle in Embodiment 1 of this invention. It is a figure for demonstrating the disposal method of the puncture needle in Embodiment 1 of this invention. It is an external appearance perspective view which shows the state which closed the slide cover of the puncture needle cartridge in Embodiment 1 of this invention. It is a perspective view which shows the conventional puncture device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Puncture device 2 Slide cover 3 Bottom case 4 Puncture needle holding rod 5 Puncture needle 5a Puncture needle separation groove 5b Puncture portion of puncture needle 6 Convex portion 8 Puncture needle set lever 9 Opening portion 10 Puncture needle loading chamber 17 Puncture button 18 Puncture needle Cartridge 19 Frame portion 21 Puncture device guide portion 22 Puncture needle extraction claw 23 Inner cylindrical portion 25 Biosensor insertion port 26 Puncture needle holding claw 101 Puncture device 105 Puncture needle 109 Opening portion 117 Puncture button 130 Main body portion 132 First spring 134 First spring 134 Two springs 136 Puncture part pressing surface 153 Cap

Claims (3)

A bottom case in which a plurality of puncture needles are connected in parallel and each in an independent state;
A slide cover slidable with respect to the bottom case;
The slide cover has a convex portion that lifts the plurality of puncture needles one by one sequentially by a predetermined angle when sliding.
A puncture needle cartridge characterized by the above. The puncture needle cartridge according to claim 1,
Storing used puncture needles and / or biosensors in the bottom case;
A puncture needle cartridge characterized by the above. The puncture needle cartridge according to claim 1,
The bottom case and the puncture needle are integrally formed of resin, and the connecting portion has flexibility.
A puncture needle cartridge characterized by the above.

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