JP2019217178A - Container for disposing of needle unit of pen-type syringe - Google Patents

Abstract

To provide a container for disposing of a needle unit of a pen-type syringe in which release operation of a locking mechanism is unnecessary, and a risk of a needle unit spilling out of the inside of the container is reduced.SOLUTION: In a slider 6, a claw 61 is provided that projects toward a holding part 51 and toward a diagonally downward part in an insertion position, and presses a hub to the holding part 51 in the insertion position. In a mounting part 5, a first groove G1 is formed that is ranged in an insertion hole 50 and extends in a tangential direction T of the insertion hole 50, and allows the claw 61 projected in the insertion hole 50 to retreat from the insertion hole 50. In the mounting part 5, a second groove G2 is formed that extends in parallel to the first groove G1, and guides the slide of the slider 6 in cooperation with the first groove G1. In the slider 6, there are provided a penetration part 60 for bringing the insertion hole 50 into an opened state in the insertion position and a closing part 62 for bringing the insertion hole 50 into a closed state in a closed position.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a container for discarding a needle unit of a pen-type syringe.

2. Description of the Related Art Conventionally, for example, a pen-type injector has been proposed for a patient to inject insulin or growth hormone by himself (self-injection) (see Patent Document).
Until the patient can perform self-injection, a nurse teaches the patient how to inject using the pen-type syringe. In such a case, from the viewpoint of hygiene, the nurse replaces the needle unit of the pen-type injector after each injection from the viewpoint of hygiene. The used needle unit is discarded in a medical waste container (see Patent Document).

JP2013-169290 A (front page) JP2009-219833 A (front page) JP2016-209184 A (front page) WO2010-122683 (front page)

  Patent Document 4 discloses a technique in which a needle unit is detached from a main body case of a pen-type syringe, and the needle unit is dropped into a container.

That is, in the invention of Document 4, first, the needle unit is inserted into the insertion hole, and the main body case is rotated while the rotation of the needle unit is regulated by the first and second holding portions, and the holding portion is opened. Then, the needle unit is dropped from the insertion hole.

  However, in the invention of Document 4, it is necessary to release the lock mechanism for holding the moving member integrated with the second holding portion at the holding position before sliding the second holding portion. Such a release operation imposes a burden on the patient who injects himself. In particular, when the patient is elderly, the burden is large.

  In addition, if the container is accidentally turned down at the release position where the insertion hole is largely opened after sliding the second holding portion, a large amount of the needle unit in the container may be partially spilled.

  Therefore, an object of the present invention is to provide a container for discarding a needle unit of a pen-type injector, which does not require an operation of releasing a lock mechanism and does not cause the needle unit to fall out of the container.

The present invention relates to a pen-type syringe suitable for a patient to administer a medical solution by himself, wherein a needle unit 27 having a cannula 25 and a hub 26 surrounding a part of the cannula 25 is detachably attached to a main body case 30 by a screw. In the container 1 for disposal of the needle unit 27, the container 1
An accommodating section 12 accommodating the needle unit 27;
A lid part 10 arranged on the upper part of the accommodation part 12,
A mounting part 5 formed on the lid part 10,
A circular insertion hole 50 formed in the mounting portion 5 for inserting the needle unit 27 into the housing portion 12;
The mounting portion is slidably moved between an insertion position P1 where the insertion hole 50 is opened and the needle unit 27 is inserted into the insertion hole 50 and a closed position P2 where the insertion hole 50 is closed. And a slider 6 mounted on the
The insertion hole 50 is formed by a semi-annular holding portion 51 whose axis S extends vertically.
The slider 6 is provided with a claw 61 that projects toward the holding portion 51 at the insertion position P1 and diagonally downward and presses the hub 26 against the holding portion 51 at the insertion position P1.
A first groove connected to the insertion hole 50 and allowing the claw 61 extending in the tangential direction T of the insertion hole 50 and projecting into the insertion hole 50 to retreat from the insertion hole 50. G1 is formed,
The mounting portion 5 is formed with a second groove G2 extending parallel to the first groove G1 and cooperating with the first groove G1 to guide the sliding of the slider 6.
The slider 6 has a penetrating portion 60 for opening the insertion hole 50 at the insertion position P1, and a closing portion 62 for closing the insertion hole 50 at the closing position P2. Are provided.

In the present invention, the slider 6 mounted on the mounting portion 5 is guided and slid by the first and second grooves. The first groove G1 extends in the tangential direction T of the insertion hole 50, and the second groove G2. Extend parallel to the first groove G1. Therefore, since the slider 6 slides in the tangential direction T, not in the radial direction of the insertion hole 50, the insertion hole 50 does not open greatly even when the main body case 30 is rotated with respect to the needle unit 27. Therefore, there is no need to provide a lock mechanism and no need to perform a lock release operation.

In addition, since the slider 6 is not opened in the radial direction of the insertion hole 50 but is moved in the tangential direction T of the insertion hole 50, the insertion hole 50 is moved before and after the slider 6 is moved. There is no possibility that the opening will be larger than the diameter of the bub 26. Therefore, there is no possibility that the needle unit 27 will fall out of the container 1.

1 is an exploded perspective view showing an embodiment of a container according to the present invention. It is a perspective view showing how to use the same container. It is a perspective view showing how to use the same container. It is a perspective view showing how to use the same container. It is a perspective view which shows an attachment and a slider. It is an exploded perspective view showing an attachment and a slider. It is the longitudinal cross-sectional view which sectioned the upper part of the container by the cross section orthogonal to a tangential direction. It is the longitudinal cross-sectional view which sectioned the upper part of the container by the cross section along the tangential direction. It is the top view and sectional drawing of an attachment and a slider single body. It is the top view and bottom view in the state where the slider was attached to the attachment.

In FIGS. 5, 6, 9 and 10, the attachments and the sliders are colored in gray.
7 and 8, the cross section of the attachment is colored gray.

Preferably, the claw 61 projecting toward the holding portion 51 is formed in a leaf spring shape for pressing the hub 26 against the holding portion 51 by resin elasticity,
The position of the tip of the claw 61 with respect to the holding portion 51 when no load is applied is set so that the hub 26 does not drop from the insertion hole 50.

In this case, the leaf spring-shaped claws 61 project toward the holding portion 51 so that the needle unit 27 does not drop out of the insertion hole 50 at the insertion position P1 when no load is applied. The needle unit 27 in the container 1 can be reliably prevented from spilling out of the container 1.

On the other hand, the main body case 30 can be rotated and the main body case 30 can be removed from the needle unit 27 by holding the needle unit 27 between the leaf spring-shaped claws 61 and the holding portion 51.

More preferably, one or two or more engaging projections 52 are provided on the inner peripheral surface of the holding portion 51 to engage with the outer peripheral surface of the hub 26.
In this case, the engagement projection 52 of the holding portion 51 is engaged with the outer peripheral surface of the bub 26, and the needle unit 27 is easily held between the holding portion 51 and the claw 61.

Preferably, at the insertion position P1, the contact portion 63 of the slider 6 contacts the mounting portion 5,
At the insertion position P1, when the main body case 30 is rotated to remove the needle unit 27 from the main body case 30, the force in the tangential direction T transmitted from the hub 26 to the claw 61 causes the slider to move. The contact portion 63 of the slider 6 is set so as to maintain a state in which the contact portion 63 contacts the mounting portion 5 so that the slider 6 does not move from the insertion position P1.

In this case, the contact portion 63 of the slider 6 is in contact with the mounting portion 5. Therefore, even when the main body case 30 is rotated, the slider 6 at the insertion position P1 maintains the state in which the slider 6 is in contact with the mounting portion 5. Therefore, the operation of removing the main body case 30 from the needle unit 27 can be easily performed.

Preferably, the first and second grooves G1 and G2 are penetrating grooves that penetrate the mounting portion 5 up and down.

In this case, it is easy to realize a structure in which the slider 6 is slidable on the mounting portion 5.

Preferably, at the insertion position P1, the slider 6 protrudes outward from the lid 10 and sticks out.

In this case, the outer diameter of the container 1 can be reduced, and the container 1 can be easily carried.
In addition, at the insertion position P1, it is easy to perform an operation of pressing the slider 6 protruding outside from the lid 10 with a finger.

Preferably, the through portion 60 is larger than the insertion hole 50.
In this case, the slider 6 does not interfere with the insertion position P1.

Preferably, the insertion hole 50 is the only hole provided in the lid 10 for disposal.

When the insertion hole 50 is the only hole, it is difficult for the needle unit 27 to jump out of the container.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

Before describing a container for disposal, an example of a well-known pen-type injector used for self-injection will be described first.

As shown in FIGS. 3 and 4, the pen-type syringe includes a main body case 30 and a needle unit 27. The needle unit 27 has a cannula 25 and a hub 26 surrounding a part of the cannula 25. The hub 26 is attached and detached by a male screw 31 at the tip of the main body case 30.

  In order to administer a drug using the pen-type injector, after setting the dose to the pen-type injector, the cannula 25 is inserted into the patient's body, and the drug previously injected into the pen-type injector is used. Administered to the patient's body.

The needle unit 27 is removed from the main body case 30 every time the injection is performed, and a new needle unit 27 is mounted on the main body case 30 each time the injection is performed.
The detailed structure of the pen-type injector is described in FIG. 2 of JP 5,394,520 B2 and paragraphs 0019 to 0020.

The needle unit 27 is removed and discarded each time an injection is performed.
Hereinafter, the structure of the container 1 for removing and discarding the needle unit 27 will be described.

As shown in FIGS. 1 and 2, the container 1 is, for example, a cylindrical container, and includes the housing portion 12 of FIG. 1 and a lid portion 10 including an inner lid 13 and an outer lid 14.
The inner lid 13 and the outer lid 14 are integrally formed, and a thin portion (hinge) 15 is formed between the inner lid 13 and the outer lid 14. The inner lid 13 is screwed onto the upper part of the housing 12 with a screw, and the outer lid 14 is rotatable about the thin portion 15.

  The inner lid 13 has an opening (through hole) 16 on the upper surface of which the attachment 7 is mounted. The attachment 7 forms a part of the lid 10.

The thin portion 15 is provided on the back side of the container 1 (FIG. 2). When the used needle unit 27 stored in the container 1 is to be discarded, as shown in FIG. 2, the outer lid 14 is rotated toward the front side, closed, Discard the needle unit 27.

In FIG. 1, the container may be configured such that the accommodation unit 12 that accommodates the needle unit 27 and the lid unit 10 that is disposed above the accommodation unit 12 are screwed together with a male screw and a female screw (not shown). However, it is also possible to adopt a structure in which resin elasticity fits tightly with each other.

The attachment 7 forming a part of the inner lid 13 in FIG. 1 has a mounting portion 5 for mounting the slider 6. The mounting portion 5 is a shallow recess so that the slider 6 can be accommodated.

In FIG. 3, the container 1 inserts the needle unit 27 into the circular insertion hole 50 of the mounting portion 5 and rotates the main body case 30 in a state where the rotation of the needle unit 27 is restricted. This is for separating the needle unit 27 from the main body case 30 while the needle unit 27 is still inserted in 50.

  In FIG. 1, the insertion hole 50 is a hole for inserting the needle unit 27 into the housing portion 12, and is the only hole provided in the lid 10 for disposal. The insertion hole 50 is formed in the attachment 7 attached to the housing 12 as a part of the lid 10. Reference numeral 18 in FIGS. 5 and 7 denotes a mounting projection of the attachment 7, which prevents the attachment 7 from detaching from the opening 16 after mounting. The insertion hole and the mounting portion may be directly provided in the lid 10 without providing the opening 16 and the attachment 7.

  As shown in FIG. 4, the slider 6 is mounted on the mounting portion 5 of the attachment 7 so as to be slidable between the insertion position P1 and the closing position P2. At the insertion position P1 in FIG. 3, the insertion hole 50 is opened, and the needle unit 27 is inserted into the insertion hole 50. At the closing position P2 in FIG. 4B, the closing portion 62 closes the insertion hole 50 (FIG. 3).

In FIG. 6, the insertion hole 50 is formed by a semicircular holding portion 51 whose axis S extends vertically. A plurality of engaging projections 52 are provided on the inner peripheral surface of the holding portion 51 to engage with the outer peripheral surface of the hub 26 (FIG. 3). The number of the engagement projections 52 may be only one.
Further, instead of the engagement projection 52, the inner peripheral surface of the holding portion 51 may be roughened, or a metal curved plate having a return may be attached to the inner peripheral surface.

  The slider 6 is provided with a claw 61. The claw 61 projects toward the holding portion 51 and obliquely downward at the insertion position P1 in FIG. 5, and at the insertion position P1, as shown in FIGS. 7B and 7C. The hub 26 is pressed against the portion 51.

  In FIG. 6, the claw 61 projecting toward the holding portion 51 is formed in a plate spring shape for pressing the hub 26 (FIG. 7B) against the holding portion 51 by resin elasticity. As shown in FIGS. 5 and 7A, the position of the tip of the claw 61 with respect to the holding portion 51 when no load is applied is set so that the hub 26 does not drop from the insertion hole 50. That is, although the hub 26 can be pushed between the tip of the claw 61 and the engagement projection 52 of the holding portion 51 in FIG. It is set not to fall. Therefore, there is no possibility that the needle unit 27 in the container 1 will pop out of the insertion hole 50 in a no-load state.

6, the slider 6 has the closing portion 62, the penetrating portion 60, and the guide 6G. The through portion 60 is larger than the insertion hole 50 and may be a through hole, but may be a U-shaped notch.

  In FIG. 6, the mounting portion 5 of the attachment 7 has first and second grooves G1 and G2 into which the guider 6G fits and guides the slider 6 to slide. In the case of this example, both grooves G1 and G2 are slit-shaped through grooves vertically penetrating the mounting portion 5.

  In FIG. 6, the first groove G1 is continuous with the insertion hole 50 and extends in the tangential direction T of the insertion hole 50 to allow the claw 61 projecting into the insertion hole 50 to retreat from the insertion hole 50. I do. The second groove G2 extends in parallel with the first groove G1 and guides the sliding of the slider 6 in cooperation with the first groove G1.

  In FIG. 5, the slider 6 has the penetrating portion 60 for opening the insertion hole 50 at the insertion position P1, and the insertion hole 50 is closed at the closing position P2 of FIG. 4B. And the closing part 62 for providing the closed state.

  In the case of this example, two of the four guiders 6G in FIG. 10D constitute the contact portion 63. As shown in FIG. 10D, the contact portion 63 of the slider 6 contacts the mounting portion 5 at the insertion position P1.

  At the insertion position P1 in FIG. 3, the force in the tangential direction T transmitted from the hub 26 to the claw 61 when the main body case 30 is rotated to remove the needle unit 27 from the main body case 30. In order to prevent the slider 6 from moving from the insertion position P1, the contact portion 63 of the slider 6 is set so as to maintain the state in which the contact portion 63 contacts the mounting portion 5.

Next, how to use the present container 1 will be described.
As shown in FIG. 2A, the storage section 12 of the container 1 is closed by the lid section 10 when not in use or when being carried.

  To use the container 1 of FIG. 2, first, the outer lid 14 is opened. At this time, the slider 6 is set at the closing position P2. At the closed position P2, the insertion hole 50 (FIG. 3) is closed by the closed portion 62. The slider 6 is fitted in the shallow mounting portion 5 of the mounting portion 5.

  Next, the slider 6 is pushed in the opening direction T1 to slide to the insertion position P1 in FIG. At the insertion position P1, the contact portion 63 in FIG. 6 contacts the attachment 7 at the end of the first groove G1 or the second groove G2, and the slider 6 in FIG. 3 does not slide any further. .

At the insertion position P1 in FIG. 5, the claw 61 of the slider 6 projects toward the holding portion 51 and the engagement projection 52 of the attachment 7 and diagonally downward. On the other hand, the penetrating part 60 of the slider 6 opens the insertion hole 50 of the mounting part 5.

At the insertion position P1 in FIG. 3, the needle unit 27 is inserted into the insertion hole 50 as shown in FIG. At this time, as shown in FIGS. 7A and 7B, the claw 61 is slightly elastically deformed and opened by resin elasticity, thereby allowing the hub 26 to be inserted into the insertion hole 50.

  The claw 61 elastically deformed in FIG. 7B pushes the hub 26 toward the engagement projection 52 (FIG. 7A) of the holding portion 51 indicated by a broken line by the reaction force. As a result, the hub 26 is held between the pawl 61 and the engagement projection 52, and the engagement projection 52 is engaged with the outer peripheral surface of the hub 26 in the circumferential direction.

  After the insertion, the main body case 30 is rotated in the detaching direction D as indicated by the arrow in FIG. As described above, since the engagement protrusion 52 of FIG. 8A is engaged with the outer peripheral surface of the hub 26 of FIG. 8B, the hub 26 does not rotate, and only the main body case 30 rotates. I do. Therefore, as shown in FIG. 4A, the hub 26 is held by the holding portion 51 (FIG. 3), and the main body case 30 can be removed from the hub 26.

  Here, at the time of the rotation, a rotational force is transmitted from the surface of the hub 26 to the claw 61 of FIG. 7B in the opening direction T1 of FIG. 3B, so that the slider 6 is moved in the opening direction T1. Force acts.

  However, as described above, at the insertion position P1, the contact portion 63 in FIG. 6 contacts the attachment 7 at the end of the first groove G1 and the second groove G2, and the slider 6 does not move. Therefore, no lock mechanism is required.

  By the rotation, after the male screw 31 of the main body case 30 in FIG. 4A is disengaged from the female screw of the hub 26, the main body case 30 is pulled upward. After the removal, the slider 6 is slid in the closing direction T2 to the closing position P2 as shown in FIG. 4B.

  Here, when the slider 6 of FIG. 5 is slid in the closing direction T2, the claws 61 projecting toward the holding portion 51 pass under the holding portion 51 and along the first groove G1 together with the slider 6 in the closing direction T2. Go to Due to the movement of the pawl 61, the holding of the hub 26 is released, and the needle unit 27 falls into the accommodating portion 12, as shown in FIGS. 4B, 7D and 8D.

At the closing position P2 in FIG. 4B, the slider 6 contacts the end of the mounting portion 5, and the closing portion 62 of the slider 6 closes the insertion hole 50 (FIG. 3). Therefore, even if the container 1 accidentally falls down immediately after dropping the needle unit 27, the needle unit 27 does not jump out of the storage section 12.
The through portion 60 of the slider 6 is closed by the mounting portion 5.

After the slider 6 moves in the closing direction T2, the outer lid 14 shown in FIG. 4B is rotated to close as shown in FIG. 2A. That is, after the use, the outer lid 14 of FIG. When a predetermined amount or more of the needle units 27 remain in the accommodating portion 12, the large number of needle units 27 are discarded together with the container 1 as medical waste.

The needle unit 27 is small and can accommodate a large number of needle units in the storage unit 12, and the disposal efficiency of medical waste is greatly improved. That is, since only the needle unit 27 is accommodated in the accommodating portion 12 and the needle case can be discarded as general waste, a large number of needle units 27 can be discarded in one small container 1.

By the way, although the slider 6 protrudes from the lid 10 at the insertion position P1 in FIG. 3 and sticks out, the slider 6 may be accommodated in the lid 10. In this case, the mounting portion 5 may be formed by a shallow rectangular recess formed in the attachment 7 or the inner lid 13, and the slider 6 may fit in the recess, and slide in the recess.

In such a case, at the insertion position P1, the contact portion (63) may be configured such that the end of the slider 6 contacts one end of the recess.

Also, the second groove G2 may not be a through groove, but generally having a groove with a bottom will reduce moldability.

The present invention can be used as a container for discarding the needle unit 27 of the pen-type syringe.

1: Container 10: Lid 12: Housing 13: Inner lid 14: Outer lid 15: Hinge 16: Opening 18: Mounting projection 25: Canula 26: Hub 27: Needle unit 30: Main body case 31: Male screw 5: Mounting Part 50: Insertion hole 51: Holding part 52: Engagement protrusion 6: Slider 6G: Guider 60: Penetration part 61: Claw 62: Closed part 63: Contact part 7: Attachment D: Separation direction S: Axis T: Tangential direction T1: opening direction T2: closing direction P1: insertion position P2: closing position G1: first groove G2: second groove

Claims (8)

A needle unit 27 having a cannula 25 and a hub 26 surrounding a part of the cannula 25 is attached to and detached from a main body case 30 by a screw, and the needle unit 27 of a pen type syringe suitable for a patient himself to administer a medical solution. In the container 1 for disposal,
An accommodating section 12 accommodating the needle unit 27;
A lid part 10 arranged on the upper part of the accommodation part 12,
A mounting part 5 formed on the lid part 10,
A circular insertion hole 50 formed in the mounting portion 5 for inserting the needle unit 27 into the housing portion 12;
The mounting portion is slidably moved between an insertion position P1 where the insertion hole 50 is opened and the needle unit 27 is inserted into the insertion hole 50 and a closed position P2 where the insertion hole 50 is closed. And a slider 6 mounted on the
The insertion hole 50 is formed by a semi-annular holding portion 51 whose axis S extends vertically.
The slider 6 is provided with a claw 61 that projects toward the holding portion 51 at the insertion position P1 and diagonally downward, and presses the hub 26 against the holding portion 51 at the insertion position P1.
The mounting portion 5 has a first groove connected to the insertion hole 50 and allowing the claw 61 extending in the tangential direction T of the insertion hole 50 and projecting into the insertion hole 50 to retreat from the insertion hole 50. G1 is formed,
The mounting portion 5 is formed with a second groove G2 extending in parallel with the first groove G1 and cooperating with the first groove G1 to guide the sliding of the slider 6.
The slider 6 has a penetrating portion 60 for opening the insertion hole 50 at the insertion position P1 and a closing portion 62 for closing the insertion hole 50 at the closing position P2. The container 1 provided with: In claim 1,
The claw 61 projecting toward the holding portion 51 is formed in a leaf spring shape for pressing the hub 26 against the holding portion 51 by resin elasticity.
The container 1, wherein the position of the tip of the claw 61 with respect to the holding portion 51 when no load is applied is set so that the hub 26 does not drop from the insertion hole 50. In claim 2,
The container (1), wherein one or two or more engaging projections (52) are provided on the inner peripheral surface of the holding portion (51) to engage with the outer peripheral surface of the hub (26). In claim 1,
At the insertion position P1, the contact portion 63 of the slider 6 contacts the mounting portion 5,
At the insertion position P1, when the main body case 30 is rotated to remove the needle unit 27 from the main body case 30, the force in the tangential direction T transmitted from the hub 26 to the claw 61 causes the slider to move. The container 1, wherein the container 6 is set so as to maintain a state in which the contact portion 63 of the slider 6 is in contact with the mounting portion 5 so that the slider 6 does not move from the insertion position P <b> 1. In any one of claims 1 to 4,
The container 1, wherein the first and second grooves G <b> 1 and G <b> 2 are through grooves vertically penetrating the mounting portion 5. In any one of claims 1 to 5,
The container 1, wherein the slider 6 protrudes outward from the lid portion 10 and protrudes at the insertion position P <b> 1. In any one of claims 1 to 6,
The container 1, wherein the through portion 60 is larger than the insertion hole 50. The container (1) according to any one of claims 1 to 7, wherein the insertion hole (50) is the only hole provided in the lid (10) for disposal.