WO2018230607A1

WO2018230607A1 - Needle disposal container

Info

Publication number: WO2018230607A1
Application number: PCT/JP2018/022587
Authority: WO
Inventors: 裕之中神; 拓実茂呂
Original assignee: ニプロ株式会社; 株式会社ファインプロ
Priority date: 2017-06-13
Filing date: 2018-06-13
Publication date: 2018-12-20
Also published as: JP2022105107A

Abstract

This needle disposal container is provided with a lid 102 including an opening portion 121 for allowing a needle unit 202 to fall into an accommodating portion 101. The lid 102 includes a moving portion 131. In combination with the opening portion 121, the moving portion 131 forms an insertion hole 123 into which a needle hub of the needle unit 202 can be inserted. The moving portion or the opening portion has a rotation preventing portion which prevents the needle hub inserted into the insertion hole 123 from rotating. The rotation preventing portion includes two protruding portions 126. A first rotation preventing portion which prevents rotation of a first needle hub 222A is formed on a side wall on the outside of the two protruding portions, and a second rotation preventing portion which prevents rotation of a second needle hub 222B is provided on a side wall on the inside thereof.

Description

Needle disposal container

This disclosure relates to a needle disposal container.

Conventionally, in order to prevent accidental puncture by medical personnel, various needle disposal containers for safely separating and discarding the needle from the syringe without touching the needle attached to the syringe have been studied. In recent years, self-injection of insulin has been performed by diabetic patients, and a person other than a trained medical worker may have to handle the needle. Therefore, there is a need for a needle disposal container that is easier to operate and safer.

For insulin self-injection, a dedicated syringe called a pen-type injector is generally used. A common pen needle unit is attached to a normal pen-type injector. This needle unit is a screw-in type, and in order to separate the needle unit from the pen injector, it is necessary to fix one of the needle unit and the pen injector and rotate the other. For this reason, a needle disposal container for a pen-type injector has been proposed that includes a holding portion that holds a needle unit so as not to rotate by sandwiching a rib provided on a needle hub of the needle unit (for example, a patent See reference 1.) The needle unit can be dropped into the container by releasing the hold after rotating the pen type injector while holding the needle unit to separate the needle unit from the pen type injector.

Japanese Unexamined Patent Publication No. 2016-32557

However, the needle unit of the pen-type injector has multiple products sold by multiple manufacturers and they meet a common standard for the internal screw structure, but the external shape of the needle hub is not the same. . For this reason, the holding unit corresponding to a specific needle unit cannot hold other needle units, and it is necessary to prepare a needle disposal container for each needle unit.

It is conceivable that a plurality of types of holding units are provided in the needle disposal container to support a plurality of types of needle units, or the holding unit is replaceable to support a plurality of types of needle units. However, when a plurality of holding units are provided, the operator needs to select the correct holding unit according to the needle unit, and when the diabetic patient himself discards the needle, the operation is confused and cannot be performed successfully. There is. Further, when the hold unit is replaceable, a complicated replacement operation is required.

The problem of the present disclosure is to realize a needle disposal container in which a plurality of types of needle units can be removed from the syringe and discarded by the same operation.

One aspect of the needle disposal container includes a housing unit that houses the needle unit separated from the syringe body, and a lid body that has an opening that allows the needle unit to fall into the housing unit. A moving part movable between a position and a second position, and the moving part is combined with the opening in the first position to form an insertion hole into which the needle hub of the needle unit can be inserted. In the second position, a drop hole is formed in combination with the opening, and the moving part or the opening has a rotation prevention part that prevents the rotation of the needle hub inserted in the insertion hole, and the rotation prevention part is , Having two protrusions formed at a distance from each other, the outer side wall of the two protrusions can be in contact with the first needle hub to restrict relative rotation between the first needle hub and the insertion hole Forming the first rotation prevention portion, and the inner side walls of the two convex portions are the first needle hub. To the form the second needle hub and the second rotation preventing portion capable restricting relative rotation between the second needle hub and the insertion hole by abutting with an outer shape.

With such a configuration, a plurality of needle units can be held by a kind of engagement structure. And even if the needle unit attached to the syringe body is either the first needle hub or the second needle hub having a different external shape from the first needle hub, the user is not aware of the difference, It can be easily removed from the needle body and safely discarded.

In one aspect of the needle disposal container, the interval between the outer side walls of the two convex portions can be greater than 1.1 mm and less than 2.8 mm. In this way, the first needle hub can be removed more easily by adopting a width configuration that is not present in the related art.

In one aspect of the needle disposal container, the first rotation preventing portion is restricted so that the first needle hub and the insertion hole cannot rotate in any of the circumferential directions on each of the outer side walls of the two convex portions. A rotation preventing portion. By adopting such a configuration, each rotation preventing portion comes into contact with each opposing side surface forming the concave portion of the first needle hub, so that wobbling between the needle hub and the insertion hole can be prevented.

In one aspect of the needle disposal container, the interval between the rotation prevention portions can be greater than 1.1 mm and less than 2.8 mm. In this way, the first needle hub can be removed more easily by adopting a width configuration that is not present in the related art.

In one aspect of the needle disposal container, the first rotation prevention portion and the second rotation prevention portion are formed on the same circumference. By setting it as such a structure, formation of a 1st rotation prevention part and a 2nd rotation prevention part can be facilitated.

In one aspect of the needle disposal container, the two convex portions extend in the axial direction, and the interval between the outer side walls of the two convex portions may gradually decrease from the lower portion toward the upper portion. With such a configuration, the first needle hub can be inserted into the insertion hole more smoothly.

In one aspect of the needle disposal container, the insertion hole may have a stopper portion that prevents the inserted needle hub from moving below a predetermined position. By adopting such a configuration, when the needle hub is inserted into the insertion hole, the needle hub can be prevented from coming out downward.

In one aspect of the needle disposal container, the rotation preventing portion is located at a position facing the moving portion in the moving direction in each of the portion forming the insertion hole of the moving portion and the portion forming the insertion hole of the opening. It may be formed. By setting it as such a structure, the removed needle unit can be easily dropped in an accommodating part.

In one aspect of the needle disposal container, the two convex portions provided in the moving portion are formed of a material having higher hardness than the two convex portions provided in the portion forming the insertion hole of the opening. Also good. With such a configuration, the convex part on the moving part side can be made hard to wear, and the life of the needle disposal container can be extended.

</ RTI> According to the needle disposal container of the present disclosure, a plurality of types of needle units can be removed from the syringe and discarded by the same operation.

FIG. 1 is a perspective view showing an example of a syringe. FIG. 2 is a perspective view showing an example of the first needle hub. FIG. 3 is a plan view seen from the distal end side showing an example of the first needle hub. FIG. 4 is a perspective view showing an example of the second needle hub. FIG. 5 is a plan view of an example of the second needle hub viewed from the distal end side. FIG. 6 is a perspective view showing a needle disposal container according to an embodiment. FIG. 7 is a plan view showing the insertion hole of the needle disposal container according to the embodiment. FIG. 8 is an end view showing the moving unit. FIG. 9 is a plan view showing a state in which the first needle hub is inserted into the insertion hole. FIG. 10 is a plan view showing a state in which the second needle hub is inserted into the insertion hole. FIG. 11 is a plan view showing a modification of the insertion hole. FIG. 12 is a front view showing a modification of the rotation blocking unit. FIG. 13 is a front view showing a modification of the rotation preventing portion. FIG. 14 is a plan view showing a modification of the insertion hole. FIG. 15 is a plan view showing a modification of the lid. FIG. 16 is a plan view showing a modification of the lid.

In this embodiment, as shown in FIG. 1, an example in which the syringe 200 is a so-called pen-type injector for insulin injection will be described. A syringe 200 that is a pen-type injector has a syringe body 201 and a needle unit 202. The needle unit 202 of the present embodiment has a puncture needle body 221 and a needle hub 222 that holds the needle body 221. The needle hub 222 has a connecting female screw that engages with a connecting male screw provided at the distal end of the syringe body 201, and the needle unit 202 is screw-connected to the syringe body 201. When the needle unit 202 is connected to the syringe main body 201, the back needle portion 223 extending to the proximal end side of the needle main body 221 punctures a seal of a drug solution container (not shown) accommodated in the syringe main body 201.

In this embodiment, an example in which the needle hub 222 is either the first needle hub 222A or the second needle hub 222B will be described. As shown in FIGS. 2 to 5, the first needle hub 222A has four pointed arcuate first needle hub recesses 224 on the outer peripheral surface at equal intervals, and the second needle hub 222B has an outer periphery. It has a plurality of columnar second needle hub protrusions 225 provided on the surface. In the drawing, the first needle hub concave portion 224 has a shape that gradually decreases in width toward the proximal end side, the maximum width w1max is 2.8 mm, and the second needle hub convex portion 225 is 0.2 mm in the axial direction. An example of a constant width of 9 mm is shown. The maximum width w1max of the first needle hub recess 224 is larger than the width w2 of the second needle hub protrusion 225 (w1max> w2), and the maximum outer diameter φmax1 of the first needle hub 222A is equal to that of the second needle hub 222B. It is larger than the maximum outer diameter φmax2. Further, the outer diameter of the first needle hub recess 224 is smaller than the outer diameter of the second needle hub protrusion 225.

As shown in FIG. 6, the needle disposal container according to the present embodiment includes a housing portion 101 that houses the needle unit 202 separated from the syringe main body 201, and an opening 121 that drops the needle unit 202 into the housing portion 101. And a lid 102 having the same. A moving part 131 that can move between the first position P <b> 1 and the second position P <b> 2 is attached to the lid body 102 with respect to the opening 121.

As shown in FIGS. 7 and 14, in the first position P1, the moving part 121 engages with the flexible piece 147 provided in the lid body 120 at the first position P1, and is fixed at the first position P1. be able to. In the first position P1, the moving part 131 is combined with the opening part 121 to form the insertion hole 123. The maximum inner diameter φmax3 of the insertion hole 123 is larger than the maximum outer diameter φmax1 of the first needle hub 222A, and both the first needle hub 222A and the second needle hub 222B can be inserted.

As shown in FIG. 7, when the engagement between the engagement recess 146 and the flexible piece 147 is released and the moving part 131 is moved to the second position P2 along the slide groove 148, the moving part 131 opens. In combination with the part 121, a drop hole having a sufficient space for dropping the needle hub 222 into the receiving part 101 is formed. If the gravity of the needle hub 222 is larger than the frictional force with the moving part 131 or the opening part 121, the needle hub 222 falls from the drop hole to the accommodating part 101 under its own weight.

As shown in FIG. 8, a moving portion curved wall 134 extending in the axial direction is provided at the end of the moving portion 131, and the opening portion is curved at a portion facing the moving portion curved wall 134 of the opening 121. A wall 124 is provided. The insertion portion 123 is formed by combining the moving portion curved wall 134 and the opening curved wall 124. If the axial lengths (heights) of the moving part curved wall 134 and the opening curved wall 124 are made longer than the heights of the first needle hub 222A and the second needle hub 222B, the user can The needle hub 222 can be pushed in as far as it can go. For this reason, the fulcrum at the time of preventing relative rotation of needle hub 222 and insertion hole 123 can be made downward, and the stability at the time of relative stability of syringe 200 and a disposal container can be improved.

The insertion hole 123 is provided with a rotation blocking portion 125 that blocks the rotation of the inserted first needle hub 222A and second needle hub 222B. In the present embodiment, the rotation preventing portion 125 is provided at the center of each of the moving portion curved wall 134 and the opening curved wall 124. As shown in FIGS. 7 and 8, the rotation preventing portion 125 has two convex portions 126 that are close to each other and spaced apart from each other and extend with a constant width in the axial direction. In addition, the two convex parts 126 should just have the function to contact | abut with the 1st needle hub recessed part 224 and the 2nd needle hub convex part 225 which is a function as the rotation prevention part 125 in the one part. For example, the protrusion direction front ends of the two protrusions 126 are the rotation blocking portions 125 that come into contact with the first needle hub 222A and the second needle hub 222B, and the protrusion direction base ends of the two protrusions 126 are the first needle hub 222A and the first needle hub 222A. It is good also as a structure which does not contact | abut 2 needle hub 222B. Further, the rotation preventing portion 125 may be an intermediate portion in the protruding direction or the base end in the protruding direction of the two convex portions 126. Note that the two convex portions 126 may not be separated from each other as long as the insertion of the needle hub 222 is not affected in a portion that is not the rotation prevention portion 125, and the separation distance may be different in a part of the two convex portions 126. Good.

When the first needle hub 222A is inserted into the insertion hole 123, the two convex portions 126 are positioned inside the first needle hub concave portion 224 as shown in FIG. Therefore, when the first needle hub 222A is to be rotated, one of the outer side walls 127 of the two convex portions 126 comes into contact with the side wall of the first needle hub concave portion 224, and the first needle hub 222A is rotated. Stop. The opposite side walls of the two convex portions 126 are referred to as inner side walls 128, and the opposite side walls opposite to the inner side walls 128 are referred to as outer side walls 127. As described above, at least a part of the outer side wall 127 serves as a first rotation blocking portion that blocks the rotation of the first needle hub 222A.

When the second needle hub 222B is inserted into the insertion hole 123, the second needle hub convex portion 225 is positioned between the two convex portions 126 as shown in FIG. Therefore, when the second needle hub 222B is to be rotated, one of the inner side walls 128 of the two convex portions 126 facing each other comes into contact with the side wall of the second needle hub convex portion 225, and the second needle hub The rotation of 222B is prevented. As described above, at least a part of the inner side wall 128 serves as a second rotation blocking portion that blocks the rotation of the second needle hub 222B.

As shown in FIGS. 9 and 10, when the first needle hub 222A or the second needle hub 222B is inserted into the insertion hole 123, the interval t1 between the outer side walls 127 of the two convex portions 126 is the first needle hub. The distance is smaller than or equal to the maximum width w1max of the recess 224. In this embodiment, considering that the first needle hub recess 224 has a maximum width w1max of 2.8 mm and the interval t2 between the two protrusions 126 must be larger than the width w2 of the second needle hub protrusion 225, t1 is smaller than 2.8 mm, larger than 1.1 mm, and is preferably larger than 1.4 mm in consideration of molding accuracy. However, since the resin needle hub is deformed by pressing, t1 may be equal to or slightly larger than 2.8 mm. In the present embodiment, the portion of the two convex portions 126 that abuts on the first needle hub concave portion 224 and defines the rotation is the tip angle of the outer side wall 127 of the two convex portions 126 extending in the axial direction. One of them. The interval between the tip corners of the outer side wall 127 is the width of the first rotation prevention part, and the width of the first rotation prevention part is larger than 1.1 mm, preferably larger than 1.4 mm and smaller than 2.8 mm. It is preferable. In addition, the value of the space | interval t1 and the space | interval t2 is the value of the space | interval in the planar view (viewpoint of FIG. 9) of the container for needle disposal.

The length of the convex portion 126 in the axial direction is not particularly limited, but a longer length is advantageous in preventing rotation of the second needle hub 222B. In addition, as shown in FIG. 11, the rotation prevention is performed such that a part of each of the outer side walls 127 of the two protrusions 126 comes into contact with a part of each side surface constituting the pointed arch shape of the first needle hub recess 224. By using the portion 129, the needle hub 222 can be restricted from rotating in any radial direction so that the needle hub 222 does not wobble with respect to the insertion hole 123. Specifically, in the present embodiment, both tip angles of the outer side walls 127 of the two convex portions 126 are the rotation preventing portions 129, and the user inserts the first needle hub 222A into the insertion hole 123. The corresponding tip angle that is the rotation preventing portion 129 is designed to abut on a part of each side surface constituting the pointed arch shape of the first needle hub 222A. For this reason, in the present embodiment, the needle hub insertion depth is defined at the same time that the needle hub is restricted so that it cannot rotate in any radial direction.

When the first rotation blocking portion for the first needle hub 222A and the second rotation blocking portion for the second needle hub 222B are separately provided in the insertion hole 123, one rotation blocking portion is There is a possibility that the insertion of the other needle hub may be hindered, or the weight drop of the needle hub may be hindered when the moving portion 131 is moved, but the two convex portions 126 provided side by side face each other. By using the outer side wall 127 that is not outer side to prevent the rotation of the first needle hub 222A and the inner side wall 128 that is opposite to each other is used to prevent the rotation of the second needle hub 222B, the possibility of the inhibition can be reduced. . In the present embodiment, the first rotation prevention unit and the second rotation prevention unit are formed on the same circumference, but the first rotation prevention unit in the height direction (vertical direction in FIG. 8). And the second rotation prevention unit may be different.

The insertion hole 123 can make the entire portion other than the rotation prevention portion 125 larger than the maximum diameter φmax1 of the first needle hub 222A. In this way, the first needle hub 222A can be inserted into the insertion hole 123.

In the present embodiment, an example is shown in which one rotation prevention portion 125 is provided on each of the moving portion curved wall 134 and the opening curved wall 124. When the rotation preventing portion 125 is provided on the moving portion curved wall 134 and the opening curved wall 124 so as to face each other in the moving direction of the moving portion 131, the moving portion 131 is moved to the second position P2. In addition, it is possible to reduce the situation in which the rotation prevention portion 125 holds the needle hub 222 too firmly and the needle hub 222 does not fall into the housing portion 101, and more reliably the first needle hub 222A and the second needle hub. The rotation of 222B can be prevented. However, it is sufficient that the rotation preventing portion 125 is provided on at least one of the moving portion curved wall 134 and the opening curved wall 124.

In the needle disposal container of the present embodiment, when the needle hub 222 is inserted into the insertion hole 123, the needle hub 222 is preferably pressed in the radial direction. In this way, the rotation of the needle hub 222 can be more reliably prevented. Moreover, when the syringe main body 201 is lifted upward after releasing the screw engagement between the syringe main body 201 and the needle unit 202, the back needle portion 223 does not come out of the seal cap of the drug solution container. It can be made difficult to cause the problem.

The pressing in the radial direction of the needle hub 222 is preferably performed by the radial end of the convex portion 126 coming into contact with the outer wall of the needle hub 222. When the entire inner wall surface or most of the insertion hole 123 is in contact with and pressed against the needle hub 222, the needle hub 222 remains on the wall surface even if the moving part 131 is moved from the first position P1 to the second position P2. There is a risk that it will not come off. However, when only the convex portion 126 is in press contact, the needle hub 222 can be easily dropped by moving the moving portion 131 to the second position P2.

In addition, if the insertion hole 123 is configured such that a portion exceeding a half of the circumference is constituted by the moving portion curved wall 134 or the opening curved wall 124, the moving portion 131 is moved from the first position P1 to the second position. The needle hub 222 can be more easily dropped when moved to the position P2.

The moving part 131 can be formed of the same material as other parts of the lid 102. Further, the moving part 131 can be formed of a material harder than the other part of the lid 102. For example, the moving part 131 can be made of acrylonitrile-butadiene-styrene (ABS) resin, polycarbonate resin or polyacetal resin, and the other part can be made of polyethylene or polypropylene. In this way, the durability of the moving part 131 can be improved. Further, the lid 102 other than the moving part 131 and the accommodating part 101 can be integrally formed.

When the two convex portions 126 of the rotation preventing portion 125 are provided on both the moving portion curved wall 134 and the opening curved wall 124, the two convex portions 126 provided on the moving portion curved wall 134 are moved to the opening portion. It can be formed of a material having higher hardness than the two convex portions 126 provided on the curved wall 124. If the two convex portions 126 on the moving portion curved wall 134 side are formed of a hard material, even if the two convex portions 126 on the opening curved wall 124 side are worn, the needle hub 222 is prevented from rotating, The needle hub 222 can be removed, and the life of the needle disposal container can be extended. The moving part 131, which is a small component compared to the entire lid 102, has a wide range of material selection and can be easily formed of a hard material.

FIG. 8 shows an example in which the interval t1 between the outer side walls 127 of the two convex portions 126 is substantially constant. However, as in the modification shown in FIG. 12, the interval t1 may be gradually increased from the upper part (insertion port side) of the insertion hole 123 toward the lower part (storage container side). By doing in this way, it becomes possible to make the side wall 127 of the outer side of the two convex parts 126 follow the side surface of the 1st needle hub recessed part 224 of a pointed arch shape. As a result, the rotation preventing portion 129 in contact with the side surface of the first needle hub recess 224 in the outer side wall 127 can be enlarged, and the rotation of the first needle hub 222A can be more reliably regulated. Moreover, since the force applied to the rotation prevention portion 129 is dispersed by increasing the rotation prevention portion 129, the durability of the rotation prevention portion 125 can be improved.

12 shows an example in which the outer side wall 127 of the two convex portions 126 is formed in a straight line shape, but it may be formed in a curved shape in accordance with the side surface of the first needle hub concave portion 224. Although the example in which the width of the convex portion 126 is constant is shown in FIG. 12, the width of the convex portion 126 may not be constant. In addition, the interval t2 between the side walls 128 inside the two convex portions 126 can be made constant. For example, the width of the convex portion 126 may be narrow at the top and wide at the bottom, and the interval t2 between the side walls 128 inside the two convex portions 126 may be constant. In this way, the distance between the outer side walls 127 of the two convex portions 126 gradually decreases from the lower portion toward the upper portion, so that the first needle hub convex portion 224 can be inserted into the insertion port 123 more smoothly. Further, the outer side wall 127 of the two convex portions 126 can be shaped along the first needle hub convex portion 224, and the inner side wall 128 can be shaped along the second needle hub convex portion 225. The two-needle hub 222B can be rotated more reliably.

As shown in FIG. 13, when the needle hub 222 is inserted into the insertion hole 123, a stopper portion 141 that protrudes inward of the insertion hole 123 is provided in order to prevent the needle hub 222 from falling downward. it can. In FIG. 13, the stopper portion 141 is provided below the rotation prevention portion 125, but the stopper portion 141 is not limited to such a configuration, and is smaller than the maximum outer diameter of the needle hub 222, and the needle hub 222 cannot pass through. Any configuration may be employed as long as the portion can be provided in the insertion hole 123. For example, the stopper portion 141 can be provided over the entire circumference of the insertion hole 123 or partially in a flange shape. Moreover, the stopper part 141 can also be made into the convex part provided in one place or multiple places. The stopper 141 can be provided only on the opening-side curved wall 124 side, can be provided only on the moving-unit-side curved wall 134 side, or both. Although the stopper part 141 can be provided in the lower end part of the insertion hole 123, the position provided according to the depth of the insertion hole 123 can be adjusted. In addition, the stopper part 141 can be provided also in the case of a structure like FIG.

In the present embodiment, the portion between the two convex portions 126 in the peripheral wall of the insertion hole 123 is thicker than the other portion of the peripheral wall of the insertion hole 123 as shown in FIGS. Yes. With such a configuration, as shown in FIG. 10, the second needle hub convex portion 225 can be brought into contact with the wall surface between the two convex portions 126, so that the second needle hub 222 </ b> B is inserted into the insertion hole 123. It can be made more difficult to rattle when inserted into the.

Further, as shown in FIG. 14, a thick portion 143 having a thick peripheral wall can also be provided on the outside of the two convex portions 126 of the rotation prevention portion 125. If it does in this way, the intensity | strength of the convex part 126 can be raised and durability can be improved. Further, when the first needle hub 222A and the second needle hub 222B are inserted into the insertion hole 123 by reducing the distance between the first needle hub 222A and the second needle hub 222B and the peripheral wall of the insertion hole 123, It can also be made difficult to play. Furthermore, the thick portion 143 or the convex portion 126 may be a hub urging portion that applies a force toward the inside of the hub. By providing a hub urging portion and holding the needle hub in a state where a force is applied to the inside of the hub at the first position, the hub is rotated and when the syringe body is separated from the hub. It can be made difficult to rattle. It should be noted that the thick portion 144 can also be provided in a portion other than the rotation prevention portion 125 within a range where the first needle hub 222A and the second needle hub 222B can be inserted. The thick wall portion 144 can have a shape in which a side surface 144 a on the side close to the rotation preventing portion 125 is substantially parallel to the moving direction of the moving portion 131. By doing in this way, when the moving part 131 moves from the first position to the second position, the thick part 144 can be prevented from interfering with the first needle hub 222A and the second needle hub 222B.

In the present embodiment, an example in which the lid 102 is substantially flat around the insertion hole 123 is shown. With such a configuration, there is an advantage that the formation becomes easy. On the other hand, as shown in FIG. 15, a recess 145 can be provided around the insertion hole 123 of the lid 102. By providing the recess 145 around the insertion hole 123, the operation becomes easy even when the diameter of the syringe body 201 is large.

In this embodiment, the insertion hole 123 has a portion other than the rotation prevention portion 125 larger than the maximum diameter φmax1 of the first needle hub 222A, and the first needle hub recess 224 and the rotation prevention portion 125 are aligned with each other. A configuration in which the one-needle hub 222A can be inserted into the insertion hole 123 with almost no resistance is shown. However, as shown in FIG. 16, the maximum outer diameter of the insertion hole 123 when the first needle hub 222A is not inserted is made smaller than the maximum outer diameter of the first needle hub 222A, and the first needle hub 222A is inserted. When inserted into the hole 123, a slight gap may be formed between the opening-side curved wall 124 and the moving-unit-side curved wall 134, and the insertion hole 123 may be deformed so that its diameter increases.

As a method of deforming the insertion hole 123 to increase the diameter, for example, a method of adjusting the shape, strength, and the like of the flexible piece 147 that holds the moving portion 131 at the first position P1 so as to allow the diameter expansion. Can be used.

The needle disposal container of the present disclosure is useful as a needle disposal container because a plurality of types of needle units can be removed from the syringe by the same operation and discarded.

DESCRIPTION OF SYMBOLS 101 Storage part 102 Cover body 121 Opening part 123 Insertion hole 124 Opening part side curved wall 125 Rotation prevention part 126 Protrusion part 127 Outer side wall 128 Inner side wall 129 Rotation prevention part 131 Moving part 134 Moving part side curved wall 141 Stopper part 143 Thick part 144 Thick part 144a Side surface 145 Recess 146 Engaging recess 147 Flexible piece 148 Slide groove 200 Syringe 201 Syringe body 202 Needle unit 221 Needle body 222 Needle hub 222A First needle hub 222B Second needle hub 223 Back needle Portion 224 First needle hub recess 225 Second needle hub protrusion

Claims

An accommodating portion for accommodating a needle unit separated from the syringe body;
A lid having an opening for dropping the needle unit into the housing part;
The lid body has a moving part that is movable between a first position and a second position,
The moving portion is combined with the opening at the first position to form an insertion hole into which the needle hub of the needle unit can be inserted, and is combined with the opening at the second position. Forming a drop hole,
The moving part or the opening part has a rotation preventing part for preventing rotation of the needle hub inserted into the insertion hole,
The rotation preventing portion has two convex portions formed at a distance from each other,
The outer side walls of the two convex portions form a first rotation blocking portion capable of restricting relative rotation between the first needle hub and the insertion hole,
The side wall on the inner side of the two convex portions forms a second rotation blocking portion capable of restricting relative rotation between the second needle hub having an external shape different from the first needle hub and the insertion hole, and discarding the needle Container.
2. The needle disposal container according to claim 1, wherein a distance between outer side walls of the two convex portions is greater than 1.1 mm and less than 2.8 mm.
The first rotation prevention portion has a rotation prevention portion that restricts the first needle hub and the insertion hole from rotating in any direction on each of the outer side walls of the two convex portions. Item 1. A needle disposal container according to item 1 or 2.
The needle disposal container according to claim 3, wherein an interval between the rotation prevention portions is larger than 1.1 mm and smaller than 2.8 mm.
The needle disposal container according to any one of claims 1 to 4, wherein the first rotation prevention part and the second rotation prevention part are formed on the same circumference.
The two convex portions extend in the axial direction,
The needle disposal container according to any one of claims 1 to 5, wherein an interval between the outer side walls of the two convex portions gradually decreases from the lower portion toward the upper portion.
The needle disposal container according to any one of claims 1 to 6, wherein the insertion hole has a stopper portion that prevents the inserted needle hub from moving below a predetermined position.
The rotation preventing portion is formed at a position facing each other in the moving direction of the moving portion in each of the portion of the moving portion that forms the insertion hole and the portion of the opening that forms the insertion hole. The needle disposal container according to any one of claims 1 to 7.
The two convex portions provided in the moving portion are formed of a material having a higher hardness than the two convex portions provided in a portion of the opening where the insertion hole is formed. A container for needle disposal as described in 1.