CN214679600U

CN214679600U - Syringe needle protective sleeve structure

Info

Publication number: CN214679600U
Application number: CN202022979524.3U
Authority: CN
Inventors: 张善海; 陈肖茂; 刘亭
Original assignee: Yongyue Medical Technology Kunshan Co ltd
Current assignee: Yongyue Medical Technology Kunshan Co ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-11-12
Anticipated expiration: 2030-12-11

Abstract

A syringe needle protective sleeve structure comprises a needle cylinder, a needle seat, a needle and a needle protective sleeve mechanism, wherein the needle seat is fixedly arranged at the head part of the needle cylinder, and the needle is fixedly arranged at the head part of the needle seat; the needle head protecting sleeve mechanism comprises an outer sleeve and an inner sleeve, the inner sleeve is movably sleeved outside the needle seat, a first end limiting mechanism is arranged between the inner sleeve and the needle seat, and the outer sleeve is movably sleeved outside the inner sleeve and a second end limiting mechanism is arranged between the outer sleeve and the inner sleeve; the syringe needle protective sleeve structure designed by the scheme can sleeve the tip of the needle through the sleeve after the disposable syringe is used, prevents the needle tip from being exposed and stabbing other people, and is simple and ingenious in overall structure design.

Description

Syringe needle protective sleeve structure

Technical Field

The utility model belongs to the technical field of medical syringe, concretely relates to syringe needle protective sheath structure.

Background

The conventional disposable syringe is only provided with a disposable sleeve at the needle tip part before being used, and then is generally directly discarded after being used, the exposed needle tip part can easily puncture other people, and the needle tip part can cause puncture infection and cause medical accidents more seriously.

Therefore, there is a need to design a syringe needle protecting sleeve structure to solve the above technical problems.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a syringe needle protective sleeve structure.

In order to achieve the above objects and other related objects, the present invention provides a technical solution: a syringe needle protective sleeve structure comprises a needle cylinder, a needle seat, a needle and a needle protective sleeve mechanism, wherein the needle seat is fixedly arranged at the head part of the needle cylinder, and the needle is fixedly arranged at the head part of the needle seat; the needle head protective sleeve mechanism comprises an outer sleeve and an inner sleeve, wherein the inner sleeve is movably sleeved outside the needle seat and is provided with a first end limiting mechanism between the needle seat, and the outer sleeve is movably sleeved outside the inner sleeve and is provided with a second end limiting mechanism between the inner sleeve.

Preferably, a sliding groove is formed in the inner wall surface of the inner sleeve tung, and a clamping block arranged on the outer surface of the needle seat is arranged in the sliding groove.

Preferably, the first end limiting mechanism comprises a concave clamping groove arranged at the front end of the needle seat and a limiting block arranged at the tail end inside the inner sleeve and corresponding to the clamping groove.

Preferably, the second end limiting mechanism comprises a groove arranged at the front end of the outer surface of the inner sleeve and a lug arranged at the tail end inside the outer sleeve and corresponding to the groove.

Preferably, the outer surface of the outer sleeve is provided with anti-skid convex ribs.

Because of the application of the technical scheme, compared with the prior art, the utility model the advantage that has as follows:

the syringe needle head protective sleeve structure of the scheme design, after the disposable syringe is used, can entangle the needle head point part through the sleeve, prevent that the needle point from exposing and stabbing other people, after the syringe uses, push away outer sleeve and inner skleeve forward, arrange the needle point part in the sleeve can, two stop gear are irreversible setting simultaneously, push away to just can not roll back again after front end card when the sleeve promptly, prevent that the sleeve pine from taking off the needle point and exposing once more, the overall structure design is simple ingenious, safety and reliability, convenience and practicability.

Drawings

Fig. 1 is a schematic structural diagram of a syringe in a use state.

Fig. 2 is a structural diagram of a syringe in a post-use state.

Fig. 3 is a schematic view of the first limiting mechanism.

Fig. 4 is a schematic view of a second limiting mechanism.

In the above figures, the syringe 1, the needle seat 2, the needle 3, the outer sleeve 4, the inner sleeve 5, the sliding groove 6, the clamping block 7, the concave clamping groove 8, the limiting block 9, the groove 10, the bump 11 and the anti-skid convex rib 12.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1 to 4. It should be understood that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-2, a syringe needle protecting sleeve structure includes a syringe 1, a needle seat 2, a needle 3 and a needle protecting sleeve mechanism, wherein the needle seat 2 is fixedly disposed at the head of the syringe 1, and the needle 3 is fixedly mounted at the head of the needle seat 2; the needle head protecting sleeve mechanism comprises an outer sleeve 4 and an inner sleeve 5, the inner sleeve 5 is movably sleeved outside the needle base 2, a first end limiting mechanism is arranged between the inner sleeve 5 and the needle base 2, the outer sleeve 4 is movably sleeved outside the inner sleeve 5, and a second end limiting mechanism is arranged between the outer sleeve 4 and the inner sleeve 5; the syringe needle head protective sleeve structure of this scheme design uses the back at disposable syringe, can entangle 3 points of syringe needle portion through the sleeve, prevents that the needle point from exposing and stabbing other people, uses the back at the syringe, with outer sleeve 4 and inner skleeve 5 forward push away, to the needle point portion arrange in the sleeve can, two stop gear are irreversible setting simultaneously, push away to the front end card promptly and just can not roll back again, prevent that the sleeve pine from taking off the needle point and expose once more.

The preferred embodiment is as follows:

as shown in fig. 1, a sliding groove 6 is arranged on the inner wall surface of the inner sleeve tung, and a fixture block 7 arranged on the outer surface of the needle holder 2 is arranged in the sliding groove 6; the inner sleeve 5 is matched with the sliding groove 6 and the clamping block 7 to slide outside the needle base 2.

As shown in fig. 3, the first end limiting mechanism includes a concave slot 8 disposed at the front end of the needle holder 2 and a limiting block 9 disposed at the tail end inside the inner sleeve 5 and corresponding to the slot; when the inner sleeve 5 moves to the front end of the needle base 2, the limiting block 9 at the tail end inside the inner sleeve 5 is clamped into the concave clamping groove 8 on the needle base 2, so that limiting is realized.

As shown in fig. 4, the second end limiting mechanism comprises a groove 10 arranged at the front end of the outer surface of the inner sleeve 5 and a projection 11 arranged at the inner tail end of the outer sleeve 4 and corresponding to the groove 10; when the outer sleeve 4 moves to the front end of the inner sleeve 5, the protrusion 11 at the inner tail end of the outer sleeve 4 can block the groove 10 at the front end of the outer surface of the inner sleeve 5, so that the limiting is realized.

As shown in fig. 1, the outer surface of the outer sleeve 4 is provided with anti-skid convex ribs 12; the anti-slip ribs 12 may be convenient for the user to use.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A syringe needle protective sheath structure which characterized in that: the needle protection device comprises a needle cylinder, a needle seat, a needle head and a needle head protection sleeve mechanism, wherein the needle seat is fixedly arranged at the head part of the needle cylinder, and the needle head is fixedly arranged at the head part of the needle seat; the needle head protective sleeve mechanism comprises an outer sleeve and an inner sleeve, wherein the inner sleeve is movably sleeved outside the needle seat and is provided with a first end limiting mechanism between the needle seat, and the outer sleeve is movably sleeved outside the inner sleeve and is provided with a second end limiting mechanism between the inner sleeve.

2. The structure of the protective sleeve for the needle of the syringe as claimed in claim 1, wherein: the inner wall surface of the inner sleeve tung is provided with a sliding groove, and the clamping block arranged on the outer surface of the needle seat is arranged in the sliding groove.

3. The structure of the protective sleeve for the needle of the syringe as claimed in claim 1, wherein: the first end limiting mechanism comprises a concave clamping groove arranged at the front end of the needle seat and a limiting block arranged at the tail end inside the inner sleeve and corresponding to the clamping groove.

4. The structure of the protective sleeve for the needle of the syringe as claimed in claim 1, wherein: the second end limiting mechanism comprises a groove arranged at the front end of the outer surface of the inner sleeve and a lug arranged at the tail end inside the outer sleeve and corresponding to the groove.

5. The structure of the protective sleeve for the needle of the syringe as claimed in claim 1, wherein: and anti-skid convex ribs are arranged on the outer surface of the outer sleeve.