CN108904069B

CN108904069B - Anti-disassembly medical needle safety protection device

Info

Publication number: CN108904069B
Application number: CN201810531339.2A
Authority: CN
Inventors: 孙丽; 柳炳吉; 王华杰; 陈爱霞
Original assignee: Qingdao Central Hospital
Current assignee: Qingdao Central Hospital
Priority date: 2018-05-29
Filing date: 2018-05-29
Publication date: 2021-06-22
Anticipated expiration: 2038-05-29
Also published as: CN108904069A

Abstract

The invention relates to a disassembly-preventing medical needle safety protection device, relates to the field of medical instruments, and mainly aims to solve the technical effects that the existing protection device is easily disassembled from a medical needle by lawless persons, so that the polluted medical needle is reused and great potential safety hazards exist. The main technical scheme adopted is as follows: the anti-disassembly medical needle safety protection device comprises a shell and a movable block; the interior of the shell is hollow, and the shell is of an integrally formed structure; one end of the shell is provided with a through hole for the medical needle to pass through; the inner part of the shell is provided with an elastic arm, and the side wall of the shell is provided with a jack; the first side surface of the movable block is provided with a positioning groove, and the movable block is used for being pressed to be inserted into the shell along the jack so as to be propped against the top end of the elastic arm when moving to the first position, so that the elastic arm is deformed; and when moving to the second position, the movable block is located inside the shell, the movable block bends to stretch into the medical needle in the shell, and the elastic arm is inserted into the positioning groove, so that the movable block is fixed.

Description

Anti-disassembly medical needle safety protection device

Technical Field

The invention relates to the technical field of medical instruments, in particular to an anti-disassembly medical needle safety protection device.

Background

Medical needles, such as hypodermic needles, biopsy needles, trocar needles, thoracentesis needles, and the like, become hazardous materials when contaminated with drugs or pathogens from patients after use. In order to avoid being injured by contaminated medical needles, some protective devices are known in the prior art, however, the protective devices are not well protected, and the protective devices are easily detached from the medical needles by lawbreakers, so that the contaminated medical needles are reused by the lawbreakers, and the potential safety hazard is great.

Disclosure of Invention

In view of this, the invention provides a detachment prevention type medical needle safety protection device, and mainly aims to solve the technical effects that the existing protection device is easily detached from a medical needle by a lawless person, so that a polluted medical needle is reused, and great potential safety hazards exist.

In order to achieve the purpose, the invention mainly provides the following technical scheme:

the embodiment of the invention provides a detachment-proof medical needle safety protection device, which comprises:

the shell is hollow, two ends of the shell are sealed, and the shell is of an integrally formed structure; one end of the shell is provided with the through hole for the medical needle to pass through; the shell is internally provided with an elastic arm, and the side wall of the shell is provided with a jack;

a first positioning groove is formed in a first side face of the movable block, the movable block is used for being pressed to be inserted into the shell along the insertion hole, so that the first side face abuts against the top end of the elastic arm when the movable block moves to a first position, and the elastic arm deforms; when the medical needle moves to the second position, the movable block is positioned in the shell, the movable block bends and extends into the medical needle in the shell, and the elastic arm is inserted into the first positioning groove, so that the movable block is fixed;

when the movable block is in the second position, the pressing end of the movable block is flush with the outer side wall of the shell, so that the outer side wall of the shell has a continuous appearance surface;

the inner wall of the shell is provided with a limiting block, the limiting block is provided with a limiting sliding groove matched with the movable block, and the movable block moves to the first position and the second position along the limiting sliding groove.

Further, the shell is made of transparent materials.

Further, the shell is cylindrical.

By means of the technical scheme, the anti-disassembly medical needle safety protection device at least has the following beneficial effects:

in the technical scheme provided by the invention, when the movable block moves to the second position, the movable block can bend the medical needle extending into the shell, and the movable block is fixed in the shell by the elastic arm, so that the bending state of the medical needle can be maintained, and the medical needle cannot be drawn out of the shell; in addition, the shell is of an integrally formed structure with the periphery sealed, and the movable block cannot be disassembled from the outside after being fixed by the elastic arms in the shell, so that once the movable block moves to the second position to bend the medical needle, the medical needle is always kept in the state, the whole protection device cannot be disassembled, and the potential safety hazard that the polluted medical needle is reused by lawbreakers is further reduced.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of a tamper-evident medical needle safety shield apparatus in accordance with an embodiment of the present invention;

FIG. 2 is a schematic structural view of a medical needle insertion detachment prevention medical needle safety shield apparatus in accordance with an embodiment of the present invention;

FIG. 3 is a schematic view of a movable block of a tamper-evident medical needle safety shield apparatus shown in a first position in accordance with an embodiment of the present invention;

FIG. 4 is a schematic view of a movable block of a tamper-evident medical needle safety shield apparatus shown in a second position in accordance with an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a second movable block according to an embodiment of the present invention.

Reference numerals: 1. a housing; 11. a first shell plate; 111. a bump; 112. a second card slot; 1111. a via hole; 1112. a second positioning groove; 12. a side casing; 121. a jack; 13. a second shell plate; 131. a first card slot; 2. a movable block; 21. a first movable block; 22. a second movable block; 201. a first positioning groove; 202. a limiting groove; 3. a resilient arm; 4. a limiting block; 41. a limiting chute; 5. a rubber member; 100. a detachment-prevention medical needle safety shield; 200. a medical needle; 2001. a connecting head.

Detailed Description

To further explain the technical means and effects of the present invention adopted to achieve the predetermined object, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to fig. 1-4, one embodiment of the present invention provides a tamper-evident medical needle safety shield apparatus 100 including a housing 1 and a movable block 2. The interior of the housing 1 is hollow and closed at both ends. The housing 1 is an integrally formed structure. One end of the housing 1 has a through hole 1111 through which the medical needle 200 passes. The housing 1 is provided with an elastic arm 3 inside and a jack 121 on the side wall. A first positioning groove 201 is formed on the first side surface of the movable block 2. The movable block 2 is pressed and inserted into the housing 1 along the insertion hole 121, so that the first side surface abuts against the top end of the elastic arm 3 when moving to the first position, and the elastic arm 3 is deformed (as shown in fig. 3); and when the movable block 2 moves to the second position, the movable block 2 is positioned inside the housing 1, the movable block 2 bends the medical needle 200 extending into the housing 1, and the elastic arm 3 is inserted into the first positioning groove 201, so that the movable block 2 is fixed (as shown in fig. 4).

Specifically, the housing 1 may be a closed structure having only the via 1111 and the insertion hole 121 thereon. The through hole 1111 has a small aperture to accommodate the medical needle 200 therethrough. The insertion hole 121 is also only for inserting the movable block 2. The movable block 2 has a pressing end, as shown in fig. 1 and 2, in the initial position, the pressing end of the movable block 2 is located outside the housing 1 to facilitate the user to press the movable block 2 through the pressing end.

In the above-mentioned technical solution, as shown in fig. 4, when the movable block 2 moves to the second position, the movable block 2 can bend the medical needle 200 extending into the housing 1, and the movable block 2 is fixed inside the housing 1 by the elastic arm 3, so that the bending state of the medical needle 200 can be maintained, and the medical needle 200 cannot be drawn out from the housing 1; in addition, because the shell 1 is an integrally formed structure with the periphery sealed, the movable block 2 cannot be disassembled from the outside after being fixed by the elastic arm 3 in the shell 1, so that once the movable block 2 moves to the second position to bend the medical needle 200, the medical needle 200 is always kept in the state, the whole protection device cannot be disassembled, and the potential safety hazard that the polluted medical needle 200 is reused by lawbreakers is further reduced.

In a specific application example, the housing 1 may have a cylindrical shape, and the cylindrical housing 1 is more material-saving and lower in cost compared to the square shape.

Further, as shown in fig. 4, when the movable block 2 moves to the second position, the pressing end of the movable block is flush with the outer sidewall of the housing 1, so that the outer sidewall of the housing 1 has a continuous appearance surface, thereby further preventing lawless persons from detaching the movable block 2 from the outside, and further preventing the whole protection device from being detached.

Further, as shown in fig. 1 to 4, a limit block 4 may be disposed on an inner wall of the housing 1. The limiting block 4 is provided with a limiting sliding groove 41 matched with the movable block 2, so that the movable block 2 moves to the first position and the second position along the limiting sliding groove 41. In this example, since the stopper 4 is provided inside the housing 1, the stopper 4 can be prevented from being detached from the outside. In addition, the movement precision of the movable block 2 can be improved through the arranged limit block 4, so that the movable block 2 can accurately move from the first position to the second position.

Further, as shown in fig. 1 to 5, one end of the movable block 2 abutting against the medical needle 200 may have a limiting groove 202, so that the medical needle 200 is limited by the limiting groove 202 when abutting against the medical needle 200. In this example, since the limiting groove 202 limits the medical needle 200, the medical needle 200 can be prevented from deflecting during the bending process, so that the medical needle 200 can be bent according to a preset track, and the precision of the bending operation of the medical needle 200 is improved.

Further, as shown in fig. 1 to 4, the number of the movable blocks 2 may be two, and the movable blocks are a first movable block 21 and a second movable block 22. The number of the elastic arms 3, the number of the insertion holes 121, and the number of the movable blocks 2 are equal and are respectively in one-to-one correspondence. Namely, the first movable block 21 corresponds to one elastic arm 3 and one insertion hole 121. The second movable block 22 corresponds to the other elastic arm 3 and the other insertion hole 121. Wherein, the first movable block 21 and the second movable block 22 are both used for applying force to different parts in the axial direction of the medical needle 200 extending into the housing 1 in opposite directions, so as to bend the medical needle 200. In this example, the two movable blocks 2 pressing the medical needle 200 in opposite directions may bend at least two portions of the medical needle 200 relative to the single movable block 2, which may further prevent the medical needle 200 from being withdrawn from the housing 1, so that the entire shield apparatus is fixed to the medical needle 200 without being detached.

In a specific application example, the aforementioned second movable block 22 is close to the via 1111 with respect to the first movable block 21. The second movable block 22 also plays a role in supporting the medical needle 200, so that the first movable block 21 can conveniently bend the medical needle 200.

In order to achieve the technical effect of integrally molding the housing 1, as shown in fig. 1 to 4, the housing 1 may include a first shell plate 11, a second shell plate 13, and a side shell 12 having a cylindrical shape. The first shell plate 11 is integrally formed at one end of the side shell 12 by heat fusion, and the second shell plate 13 is integrally formed at the other end of the side shell 12 by heat fusion. The aforementioned insertion hole 121 is provided on the side case 12, and the via 1111 is provided on the first housing plate 11. One spring arm 3 is arranged on the first shell plate 11 and the other spring arm 3 is arranged on the second shell plate 13. Specifically, the components inside the casing 1, such as the limit block 4 and the like, can be integrally injection-molded with the side casing 12, the first shell plate 11 and both the elastic arms 3 thereon are also integrally injection-molded, the second shell plate 13 and both the elastic arms 3 thereon are also integrally injection-molded, then the first shell plate 11 is molded to one end of the side casing 12 in a hot-melting manner, and the second shell plate 13 is molded to the other end of the side casing 12 in a hot-melting manner, so that the technical effect of integrally molding the whole casing 1 can be realized, the casing 1 can be effectively prevented from being disassembled, and the whole protection device cannot be disassembled.

Further, as shown in fig. 1 to 4, one end of the side shell 12 is provided with a first locking groove 131 adapted to the shape of the first shell plate 11, and the first shell plate 11 is integrally formed in the first locking groove 131 by hot melting, so as to improve the connection stability between the first shell plate 11 and the side shell 12.

Further, as shown in fig. 1 to 4, a second locking groove 112 adapted to the outer shape of the second shell 13 is disposed at the other end of the side shell 12, and the second shell 13 is integrally formed in the second locking groove 112 by heat melting, so as to improve the connection stability between the second shell 13 and the side shell 12.

Further, as shown in fig. 1 to 4, a protrusion 111 is disposed on an outer side of the first casing 11, and the protrusion 111 is provided with a second positioning groove 1112 into which the connector 2001 of the medical needle 200 is inserted. The through hole 1111 is located at the bottom of the second positioning groove 1112. In this example, by providing the second positioning groove 1112 on the connector, the whole guard can be fixed to the connector of the medical needle 200 through the second positioning groove 1112, which facilitates the bending operation of the movable block 2 on the medical needle 200.

Further, as shown in fig. 1 to 4, a rubber member 5 may be provided on an inner wall of the housing 1, and the rubber member 5 corresponds to a needle tip of the medical needle 200 after being bent, so that the medical needle 200 is inserted into the rubber member 5 after being bent. In this example, the rubber member 5 is provided to block the medical needle 200 and prevent the medical fluid remaining in the medical needle 200 from flowing out; on the other hand, the bent medical needle 200 can be further fixed, so that the medical needle 200 cannot be detached from the protective device.

Further, the housing 1 may be made of a transparent material, so that a user can observe the whole bending process of the medical needle 200 conveniently, and the bending precision of the medical needle 200 is improved.

Here, it should be noted that: in the case of no conflict, a person skilled in the art may combine the related technical features in the above examples according to actual situations to achieve corresponding technical effects, and details of various combining situations are not described herein.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A tamper-evident medical needle safety shield apparatus, comprising: ‍ casing (1), which is hollow and closed at two ends, wherein the casing (1) is an integrated structure; one end of the shell (1) is provided with a through hole (1111) for a medical needle (200) to pass through; the elastic arm (3) is arranged in the shell (1), and the side wall of the shell is provided with an insertion hole (121); ‍ the housing (1) is a closed structure with only through holes (1111) and insertion holes (121) on it;

a first positioning groove (201) is formed in a first side face of the movable block (2), the movable block (2) is pressed and inserted into the shell (1) along the insertion hole (121) so that the first side face abuts against the top end of the elastic arm (3) when the movable block moves to a first position, and the elastic arm (3) deforms; when the medical needle is moved to the second position, the movable block (2) is positioned in the shell (1), the movable block (2) bends and extends into the medical needle (200) in the shell (1), and the top end of the elastic arm (3) is inserted into the first positioning groove (201), so that the movable block (2) is fixed; ‍

The number of the movable blocks (2) is two, and the movable blocks are respectively a first movable block (21) and a second movable block (22); the number of the elastic arms (3), the number of the jacks (121) and the number of the movable blocks (2) are equal and are respectively in one-to-one correspondence; wherein the first movable block (21) and the second movable block (22) are used for applying force to different parts extending into the axial direction of the medical needle (200) in the shell (1) along opposite directions so as to bend the medical needle (200);

wherein the pressing end of the movable block (2) is flush with the outer side wall of the shell (1) when the movable block is in the second position, so that the outer side wall of the shell (1) has a continuous appearance surface; ‍ a limit block (4) is arranged on the inner wall of the shell (1), the limit block (4) is provided with a limit sliding groove (41) matched with the movable block (2), so that the movable block (2) moves to the first position and the second position along the limit sliding groove (41);

the shell (1) comprises a first shell plate (11), a second shell plate (13) and a cylindrical side shell (12), wherein the first shell plate (11) is integrally formed at one end of the side shell (12) in a hot melting mode, and the second shell plate (13) is integrally formed at the other end of the side shell (12) in a hot melting mode; the jack (121) is arranged on the side shell (12), the limiting block (4) and the side shell (12) are integrally molded by injection, and the through hole (1111) is formed in the first shell plate (11); one elastic arm (3) is arranged on the first shell plate (11), and the other elastic arm (3) is arranged on the second shell plate (13);

the inner wall of the shell (1) is provided with a rubber piece (5), and the rubber piece (5) corresponds to the needle point of the medical needle (200) after being bent, so that the medical needle (200) is inserted into the rubber piece (5) after being bent.

2. The tamper-evident medical needle safety shield apparatus of claim 1 wherein ‍ said housing (1) is formed of a transparent material.

3. The tamper-evident medical needle safety shield apparatus of claims 1 or 2, wherein ‍ said housing (1) is cylindrical.