CN217745252U - Prevent syringe needle puncture structure - Google Patents

Abstract

The utility model discloses a needle puncture-proof structure, relating to the technical field of medical appliances, comprising a needle seat, a protective cover and a needle, wherein the end part of the needle seat is provided with a needle, and the outer wall of the needle seat is provided with a convex needle handle; the needle seat is provided with a needle protection sleeve, the needle handle is arranged in the needle seat, the needle protection sleeve is sleeved outside the needle head, an avoiding groove for the needle handle to pass through is formed in the length direction of the needle protection sleeve, and one end of the needle protection sleeve is clamped at the end of the needle seat. This prevent that syringe needle stabs structure utilizes the needle handle on the needle file, and set up the groove of dodging that supplies the needle handle to pass through on the protective sleeve, thereby can pass through the slip protective sleeve, make the syringe needle wear out from the one end of protective sleeve, can use the syringe needle to operate under the prerequisite of not pulling out the protective sleeve, the problem of losing easily after having solved the slip protective sleeve and pulling out from the needle file, and can make the syringe needle be located the protective sleeve again through the reverse slip protective sleeve after finishing using, the syringe needle has been solved and has been exposed wounded people and contaminated problem.

Description

Prevent syringe needle puncture structure

Technical Field

The utility model relates to the technical field of medical appliances, concretely relates to prevent syringe needle stab wound structure.

Background

When the existing medical injector is used, a protective sleeve is usually sleeved at the outer end of a needle head to play a role in safety protection. When the syringe needs to be used, the protective sleeve positioned at the outer end of the needle head needs to be pulled off, and after the syringe is used up, the protective sleeve is continuously arranged on the needle head, so that the needle head is prevented from being pricked by mistake and infected.

However, the traditional separated protective sleeve is easy to lose, so that the needle head is exposed outside, and certain potential safety hazards are caused to medical staff and subsequent sanitary cleaning staff. The use of the protective sleeve is disposable and can not be recovered; however, in practice, medical staff takes the protective cover off the nursing station to extract the medicine, and then sends the medicine to a ward for injection, so that the needle head is exposed, and thus, the probability of the needle head stabbing the person or the needle head being polluted by the outside is relatively improved.

SUMMERY OF THE UTILITY MODEL

To the defect that exists among the prior art, the utility model aims to provide a prevent syringe needle stab wound structure to solve among the prior art disconnect-type syringe needle lag and lose easily and cause the syringe needle to injure people or receive the problem of pollution.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

there is provided a needle-prick prevention structure including:

the needle seat is provided with a needle head at the end part, and the outer wall of the needle seat is provided with a raised needle handle;

the needle seat is provided with a needle handle, the needle handle is arranged in the needle seat, the needle seat is arranged in the needle seat, and the needle seat is arranged in the needle seat.

In some optional embodiments, the above needle stick prevention structure further comprises:

and the handle is arranged on the outer side wall of the protective sleeve.

In some optional embodiments, the protective sleeve includes an inner tube and an outer tube sleeved together, the inner tube and the outer tube are relatively rotatable and relatively fixed in the axial direction, an inner groove is formed in the length direction of the inner tube, an outer groove is formed in the length direction of the outer tube, and the inner groove and the outer groove are formed in a position corresponding to each other to form the avoiding groove.

In some alternative embodiments, the outer wall of the inner pipe is provided with an annular protrusion, the inner wall of the outer pipe is correspondingly provided with an annular groove, and the annular protrusion is matched with the annular groove so that the inner pipe and the outer pipe are relatively fixed in the axial direction and can rotate relatively.

In some optional embodiments, the outer wall of the inner tube is provided with a first positioning portion, the inner wall of the outer tube is provided with a second positioning portion, and the first positioning portion is clamped with the second positioning portion when the inner groove corresponds to the outer groove.

In some alternative embodiments, two first positioning portions are provided, and are respectively located at two sides of the inner tank.

In some optional embodiments, the other end of the protective sleeve is provided with a limiting part, the limiting part is provided with a through hole for the needle to pass through, and the inner diameter of the through hole is smaller than the outer diameter of the end part of the needle seat.

In some optional embodiments, the limiting portion is an annular protrusion on an inner side of the protective sleeve or an extension portion that smoothly contracts in an outward extending direction.

In some alternative embodiments, the needle handle is a plate-shaped structure, and the plate surface of the needle handle is parallel to or coincides with the axial direction of the needle seat.

In some optional embodiments, the inner wall of the protective sleeve is provided with an anti-slip bulge abutting against the needle seat.

Compared with the prior art, the utility model has the advantages of: utilize the needle handle on the needle file, and set up the groove of dodging that supplies the needle handle to pass through on the protective sheath, thereby can be through the slip protective sheath, make the syringe needle wear out from the one end of protective sheath, can use the syringe needle to operate under the prerequisite of not pulling out the protective sheath, because the protective sheath can be all the time with the needle file centre gripping, the problem of losing easily after the anti-skidding sleeve pipe is pulled out from the needle file has been solved, and the syringe needle can make the syringe needle be located the protective sheath again through the protective sheath of reverse slip after finishing using, not only solved the syringe needle and exposed wounded people and contaminated problem, still can repeat the reuse protective sheath.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of a needle pricking prevention structure of the present invention;

fig. 2 is a schematic view of the combination of the shield tube and the outer tube of fig. 1.

In the figure: 1. a needle seat; 11. a needle handle; 2. a protective sleeve; 21. an inner tube; 211. an inner tank; 212. a first positioning portion; 22. an outer tube; 221. an outer tank; 222. a second positioning portion; 23. a limiting part; 3. a needle head; 4. a handle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The following describes an embodiment of a needle stick prevention structure according to the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1, the embodiment of the present application provides a structure for preventing a needle from being punctured, including a needle base 1, a protective sleeve 2 and a needle 3, wherein the end of the needle base 1 is provided with the needle 3, and the outer wall of the needle base 1 is provided with a raised needle handle 11; the protective sleeve 2 is sleeved outside the needle head 3, an avoiding groove for the needle handle 11 to pass through is formed in the length direction of the protective sleeve 2, and one end of the protective sleeve 2 is clamped at the end of the needle base 1.

In practice, the needle holder 1 has two ends, one of which is connected to the needle 3 and the other of which is connected to a hose, in this case the end of the needle holder 1 in question, in particular the end connected to the needle 3.

It will be appreciated that the needle handle 11 is designed to facilitate the application of force to the medical practitioner during the injection procedure, to facilitate the insertion procedure, and the protective sleeve 2 is designed to prevent the needle 3 from being exposed. Therefore, when the needle head 3 is not used, the protective sleeve 2 is sleeved outside the needle head 3 and clamped at the end part of the needle base 1, and the relative position of the protective sleeve and the needle base 1 is kept fixed; when the needle 3 needs to be used, the protection sleeve 2 is pushed towards the needle handle 11 to slide on the needle base 1, at the moment, the needle handle 11 moves in the avoiding groove on the protection sleeve 2, and the needle 3 extends out of the other end of the protection sleeve 2.

It should be noted that, the two ends of the protecting sleeve 2 in the axial direction are both provided with openings so as to be clamped on the needle base 1 and allow the needle 3 to pass through. And dodge the groove and should not too big along the radial ascending width of protective sheath 2, prevent that protective sheath 2 from not enough and causing the droing of protective sheath 2 to the clamping-force of needle file 1, preferably be less than above-mentioned needle handle 11 at the radial ascending width of protective sheath 2 to when making needle handle 11 be located dodge the inslot, dodge two lateral walls in groove and carry out the centre gripping to needle handle 11.

Preferably, the protective sleeve 2 is made of a material with resilience.

In some alternative embodiments, the needle stick prevention structure further comprises a handle 4, and the handle 4 is disposed on an outer sidewall of the protective sleeve 2.

It will be appreciated that the provision of the handle 4 facilitates the sliding of the protective sleeve 2 on the needle mount 1.

Preferably, a positioning buckle is arranged on the handle 4, a positioning clamping groove is correspondingly arranged on the needle handle 11, and when the protective sleeve 2 moves to a preset position on the needle base 1 and the needle 3 penetrates out of the needle base with a required length, the handle 4 and the needle handle 11 can be connected together through the clamping fit of the positioning buckle and the positioning clamping groove, so that the relative position of the protective sleeve 2 can be fixed.

Further, as shown in fig. 2, the protection tube 2 includes an inner tube 21 and an outer tube 22 sleeved together, the inner tube 21 and the outer tube 22 are relatively rotatable and relatively fixed in an axial direction, an inner groove 211 is provided in a longitudinal direction of the inner tube 21, an outer groove 221 is provided in a longitudinal direction of the outer tube 22, and the inner groove 211 and the outer groove 221 are correspondingly overlapped to form the protection groove.

In this example, the shield tube 2 is a double tube, and preferably, the inner tube 21 and the outer tube 22 are coaxial. When the inner tube 21 and the outer tube 22 are rotated relatively, the inner groove 211 and the outer groove 221 may be overlapped or misaligned. Therefore, when the inner groove 211 corresponds to the outer groove 221, the above-mentioned avoiding groove is formed for the needle handle 11 to pass through; when inner groove 211 is offset from outer groove 221, needle handle 11 cannot pass over shield tube 2.

Therefore, the protective sleeve 2 is a double-layer tube including the inner tube 21 and the outer tube 22, so that the inner groove 211 and the outer groove 221 are overlapped and correspond to each other when the needle 3 needs to be exposed, and the needle 3 is prevented from being exposed to hurt due to misoperation.

Preferably, the outer wall of the inner tube 21 is provided with an annular protrusion, the inner wall of the outer tube 22 is correspondingly provided with an annular groove, and the annular protrusion is matched with the annular groove so that the inner tube 21 and the outer tube 22 are relatively fixed in the axial direction and can rotate relatively.

It will be appreciated that in this example the annular projection is in snap engagement with the annular groove and the annular projection is slidable within the annular groove to effect axial fixing and relative rotation of the inner tube 21 and the outer tube 22.

In some alternative embodiments, the outer wall of the inner tube 21 is provided with a first positioning portion 212, the inner wall of the outer tube 22 is provided with a second positioning portion 222, and when the inner groove 211 corresponds to the outer groove 221, the first positioning portion 212 is engaged with the second positioning portion 222.

The first positioning portion 212 and the second positioning portion 222 function to fix the relative positions of the inner tube 21 and the outer tube 22 so that the inner groove 211 and the outer groove 221 overlap each other. In this embodiment, the first positioning portion 212 is a hemispherical protrusion and is made of a material with elastic deformation capability, and the second positioning portion 222 is a hemispherical recess adapted to the first positioning portion 212, so that the first positioning portion 212 can be clamped in the second positioning portion 222. When a sufficiently large external force is applied to the inner tube 21 or the outer tube 22 to rotate the two, the first positioning portion 212 can move out of the second positioning portion 222 and abut against the inner wall of the outer tube 22.

Further, two first positioning portions 212 are provided, and are respectively located on both sides of the inner groove 211.

In this example, the first positioning portions 212 are provided in two and are respectively positioned on both sides of the inner groove 211, so that the inner groove 211 and the outer groove 221 can be aligned or shifted by rotating the outer tube 22 clockwise or counterclockwise.

In some alternative embodiments, the other end of the protective sleeve 2 is provided with a limiting part 23, the limiting part 23 is provided with a through hole for the needle 3 to pass through, and the inner diameter of the through hole is smaller than the outer diameter of the end of the needle holder 1.

It will be appreciated that the stop 23 functions to prevent the end of the hub 1 from passing out of the protective sleeve 2.

Further, the stopper 23 is an annular protrusion on the inner side of the shield tube 2 or an extension portion that smoothly contracts in the direction of extending to the outer side.

In this example, the stopper 23 has a frustum shape, and the large diameter end is connected to the shield tube 2.

In some alternative embodiments, the needle handle 11 has a plate-like structure, and the plate surface of the needle handle 11 is parallel to or coincident with the axial direction of the needle seat 1, so that the needle handle 11 can move in the escape groove of the protection sleeve 2.

In some alternative embodiments, the inner wall of the protective sleeve 2 is provided with an anti-slip projection abutting against the needle hub 1.

Here, the anti-slip protrusions are provided to further ensure stable clamping of the protecting sleeve 2 and the needle holder 1, and when it is required to slide the protecting sleeve 2 on the needle holder 1, a sufficient external force is applied to the protecting sleeve 2 to overcome the friction between the anti-slip protrusions and the needle holder 1.

The working principle of the embodiment of the application is as follows: the protection sleeve 2 is sleeved outside the needle head 3 and clamped at the end of the needle seat 1, when the needle head 3 needs to be used, the outer tube 22 is rotated until the first positioning part 212 is clamped with the second positioning part 222, the outer groove 221 corresponds to and coincides with the inner groove 211 in position, so that an avoiding groove for the needle handle 11 to pass through is formed, the handle 4 is utilized to push the protection sleeve 2 to move towards the direction close to the needle handle 11 at the moment, the needle head 3 penetrates out from the through hole at the limiting part 23 of the protection sleeve 2, after the needle head 3 is used, the protection sleeve 2 is pushed towards the direction far away from the needle handle 11, the needle head 3 is enabled to be positioned in the protection sleeve 2 again, and the outer tube 22 is rotated to enable the inner groove 211 and the outer groove 221 to be staggered mutually.

The utility model provides a structure for preventing needle from stabbing, through set up the dodging groove that supplies the needle handle to pass through on the protective sleeve, make when the protective sleeve moves to the needle handle direction on the needle file, the needle head can wear out from one end of the protective sleeve, thus use the needle head to operate under the prerequisite of not pulling out the protective sleeve, because the protective sleeve can be held with the needle file all the time, has solved the problem that the antiskid sleeve is easy to lose after pulling out from the needle file; after the needle is used, the needle can be positioned in the protective sleeve again by reversely sliding the protective sleeve, so that the problems that the needle is exposed to hurt people and is polluted are solved, and the protective sleeve can be repeatedly used for multiple times; the protection sleeve is set into a double-layer sleeve capable of rotating mutually, and the inner tube and the outer tube are respectively provided with the inner groove and the outer groove, so that the inner groove and the outer groove can be superposed to form an avoidance groove when the needle needs to be penetrated out, the protection effect on the needle in use is further ensured, and the exposure of the needle due to misoperation is avoided; the inner pipe and the outer pipe are provided with a first positioning part and a second positioning part, so that the two relative positions of the inner groove and the outer groove which are overlapped or staggered can be accurately adjusted and fixed; the end of the protective sleeve far away from the needle base is provided with a limiting part to prevent the needle base from penetrating out of the protective sleeve. The needle anti-stabbing structure is simple to operate, easy to produce, low in cost, reusable and suitable for popularization.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in this application, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The previous description is only an example of the present application, and is provided to enable any person skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A needle stick resistant structure comprising:

the needle seat (1) is provided with a needle head (3) at the end part, and the outer wall of the needle seat (1) is provided with a raised needle handle (11);

the needle protecting device comprises a protecting sleeve (2), wherein the protecting sleeve is sleeved outside a needle head (3) and is arranged along the length direction of the protecting sleeve (2), a needle handle (11) passes through an avoiding groove, and one end of the protecting sleeve (2) is clamped at the end of a needle seat (1).

2. The needle stick prevention structure of claim 1, further comprising:

and the handle (4) is arranged on the outer side wall of the protective sleeve (2).

3. The needle stick prevention structure of claim 1, wherein:

protective sheath pipe (2) establish inner tube (21) and outer tube (22) together including the cover, inner tube (21) and outer tube (22) but relative rotation, and axial direction relatively fixed, interior groove (211) are established to the length direction of inner tube (21), the outer tube (221) are established to the length direction of outer tube (22), interior groove (211) with form after outer groove (221) position corresponds avoid the groove.

4. The needle-stick prevention structure of claim 3, wherein:

the outer wall of the inner pipe (21) is provided with an annular protrusion, the inner wall of the outer pipe (22) is correspondingly provided with an annular groove, and the annular protrusion is matched with the annular groove so that the inner pipe (21) and the outer pipe (22) are relatively fixed in the axial direction and can rotate relatively.

5. The needle stick prevention structure of claim 4, wherein:

the outer wall of the inner pipe (21) is provided with a first positioning part (212), the inner wall of the outer pipe (22) is provided with a second positioning part (222), and when the inner groove (211) corresponds to the outer groove (221), the first positioning part (212) is clamped with the second positioning part (222).

6. The needle stick prevention structure of claim 5, wherein:

two first positioning parts (212) are arranged and are respectively positioned at two sides of the inner groove (211).

7. The needle stick prevention structure of claim 1, wherein:

the other end of the protective sleeve (2) is provided with a limiting part (23), the limiting part (23) is provided with a through hole for the needle head (3) to pass through, and the inner diameter of the through hole is smaller than the outer diameter of the end part of the needle seat (1).

8. The needle stick prevention structure of claim 7, wherein:

the limiting part (23) is an annular bulge on the inner side of the protective sleeve (2) or an extension part which is smoothly contracted towards the outer extension direction.

9. The needle-stick prevention structure of claim 1, wherein:

the needle handle (11) is of a plate-shaped structure, and the plate surface of the needle handle (11) is parallel to or coincided with the axial direction of the needle seat (1).

10. The needle stick prevention structure of claim 1, wherein:

the inner wall of the protective sleeve (2) is provided with an anti-slip bulge which is abutted to the needle base (1).

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