CN220938709U

CN220938709U - Non-return-sleeve injector

Info

Publication number: CN220938709U
Application number: CN202321973925.5U
Authority: CN
Inventors: 朱佳丽
Original assignee: Capital Institute of Pediatrics
Current assignee: Capital Institute of Pediatrics
Priority date: 2023-07-26
Filing date: 2023-07-26
Publication date: 2024-05-14
Anticipated expiration: 2033-07-26

Abstract

The utility model discloses a non-returnable injector, which relates to the technical field of injectors and comprises an injector body, a piston rod, a protective sleeve, scale marks and a nipple, wherein the scale marks are arranged on the surface of the injector body, so that the observation is convenient, an injection needle and the nipple of the injector body are sleeved through the protective sleeve, the highest part of the protective sleeve is sleeved at the tail end of the nipple, the protective sleeve seals the nipple through an internal sealing ring, the injection needle and the nipple are protected, a fixing rope is fixedly arranged at the top of the protective sleeve and is connected with the bottom of an injector body pipe body, the fixing rope is made of medical plastic, the middle section part of the fixing rope is thinner, and the middle part of the fixing rope can be broken by applying smaller external force to the outside by a user, so that the opening of the injector body is completed.

Description

Non-return-sleeve injector

Technical Field

The utility model relates to the technical field of syringes, in particular to a non-returnable syringe.

Background

Disposable syringes are widely used in medical and clinical work and play an indispensable role, and in order to ensure sanitation and prevent cross infection, most modern syringes adopt plastic texture and are thrown away once, so that the risk of infection during injection is greatly reduced. At present, after the injector is unsealed, some merchants cannot use the injector in time, so that the injection needle part is contacted with the outside, and the risk of infection is increased.

To this end, we propose a non-returnable syringe solving the above problems.

Disclosure of utility model

The utility model provides a non-returnable injector, which solves the technical problem that the injector can be further sleeved with a needle cap after being unsealed.

In order to solve the technical problems, the non-returnable syringe provided by the utility model comprises a syringe body, a piston rod, a protective sleeve, scale marks and a nipple, wherein an injection needle and the nipple of the syringe body are sleeved through the protective sleeve, the top of the protective sleeve is fixedly provided with a fixing rope which is connected with the bottom of a syringe body tube, two sides of the outer side of the protective sleeve are respectively provided with a cross rod, and the cross rods are movably connected with a connecting rod.

Preferably, the highest part of the protective sleeve is sleeved at the more tail end of the nipple.

Preferably, a clamping groove is formed in the cross rod, clamping blocks are respectively arranged on two sides of the connecting rod, and the tail end of the connecting rod is trapezoid.

Preferably, the bottom opening of the clamping groove is smaller than the opening of the top, and the width of the top of the clamping block is also larger than the width of the bottom.

Preferably, the clamping block is made of rubber.

Preferably, the fixing rope is made of medical plastic, and the middle section part of the fixing rope is thinner.

Preferably, the surface of the syringe body is provided with scale marks.

Compared with the related art, the non-returnable injector provided by the utility model has the following beneficial effects:

According to the utility model, the middle part of the fixing rope can be broken by applying small external force to the outside by a user, after the fixing rope is broken, the protective sleeve is pulled to the outside to enable the clamping block to deform and deviate from the clamping groove, so that the syringe body can be normally used, after the protective sleeve is unsealed, the protective sleeve is limited, the protective sleeve is prevented from sleeving the syringe body again, the possibility of repeated use is reduced, and the safety is improved.

Drawings

FIG. 1 is a schematic view of a non-collapsible syringe;

FIG. 2 is a schematic elevational view of a non-returnable injector;

FIG. 3 is an enlarged view of the structure at A in FIG. 1;

Fig. 4 is a schematic structural view showing a connection state of a connecting rod of a non-returnable syringe.

Reference numerals in the drawings: 1. a syringe body; 11. a piston rod; 12. a protective sleeve; 13. scale marks; 2. nipple; 21. a fixing rope; 22. a cross bar; 23. a connecting rod; 24. a clamping groove; 25. and (5) clamping blocks.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

The first embodiment is shown in fig. 1-4, and is a non-returnable injector, which comprises an injector body 1, a piston rod 11, a protective sleeve 12, scale marks 13 and a nipple 2, wherein the scale marks 13 are arranged on the surface of the injector body 1, so that the injector is convenient to observe, the injection needle and the nipple 2 of the injector body 1 are sheathed and connected through the protective sleeve 12, the highest part of the protective sleeve 12 is sheathed and connected at the tail end of the nipple 2, the protective sleeve 12 seals the nipple 2 through an internal sealing ring to protect the injection needle and the nipple 2, a fixing rope 21 is fixedly arranged at the top of the protective sleeve 12 and connected with the bottom of the pipe body of the injector body 1, the fixing rope 21 is made of medical plastic, the middle section part of the fixing rope 21 is thinner, the middle part of the fixing rope 21 can be pulled off by applying small external force to the outside by a user, the protective sleeve 12 cannot be sheathed and connected at the nipple 2 after the fixing rope 21 is disconnected, namely the nipple is used.

In addition, the two sides of the outer side of the protective sleeve 12 are respectively provided with a cross rod 22, the cross rods 22 are movably connected with a connecting rod 23, clamping grooves 24 are formed in the cross rods 22, clamping blocks 25 are respectively arranged on the two sides of the connecting rod 23, the tail end of the connecting rod 23 is in a trapezoid shape, the bottom opening of each clamping groove 24 is smaller than the opening of the top, the width of the top of each clamping block 25 is larger than that of the bottom, each clamping block 25 is made of rubber, certain deformation can be generated, after the fixing rope 21 is disconnected, the protective sleeve 12 is pulled outwards, the clamping blocks 25 deform and are separated from the clamping grooves 24, so that the syringe body 1 can be normally used, after the protective sleeve 12 is opened, the protective sleeve 12 is limited, the syringe body 1 is prevented from being sleeved again by the protective sleeve 12, the possibility of repeated use is reduced, safety is improved, and certain connection stability is also provided through the cooperation of the clamping grooves 24 and the clamping blocks 25 when the protective sleeve 21 is not opened.

Working principle: through the user to exert less external force to the outside, can stretch out the middle part of fixed rope 21, after fixed rope 21 breaks off, outside pulling protective sheath 12 makes fixture block 25 take place to deform and deviate from in draw-in groove 24, thereby can normal use syringe body 1, through the cooperation of draw-in groove 24 and fixture block 25, behind the unsealing protective sheath 12, it is spacing to have carried out protective sheath 12, avoid protective sheath 12 to cup joint syringe body 1 once more, the possibility of reuse has been reduced, thereby promote the security, when unopened state, because of the middle part of fixed rope 21 is comparatively fragile, through the cooperation of draw-in groove 24 and fixture block 25, certain connection stability is also provided.

It is noted that 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. Moreover, 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.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a syringe that can not return cover, includes syringe body (1), piston rod (11), protective sheath (12), scale mark (13), nipple (2), its characterized in that, injection needle and nipple (2) part of syringe body (1) cup joint through protective sheath (12), the top of protective sheath (12) is fixed to be provided with the bottom that syringe body (1) body is connected to fixed rope (21), the outside both sides of protective sheath (12) all are provided with a horizontal pole (22), horizontal pole (22) swing joint connecting rod (23).

2. A non-returnable injector according to claim 1, characterized in that the highest part of the protective sheath (12) is sleeved at the end of the nipple (2).

3. The non-returnable injector according to claim 1, characterized in that a clamping groove (24) is formed in the cross bar (22), two clamping blocks (25) are respectively arranged on two sides of the connecting rod (23), and the tail end of the connecting rod (23) is trapezoid.

4. A non-returnable injector according to claim 3, wherein the bottom opening of the catch (24) is smaller than the top opening, and the top width of the catch (25) is also larger than the bottom width.

5. A non-returnable syringe according to claim 3, characterized in that the block (25) is made of rubber.

6. A non-returnable syringe according to claim 1, wherein the fixing cord (21) is made of medical plastic, and the middle section of the fixing cord (21) is thinner.

7. A non-returnable syringe according to claim 1, characterized in that the surface of the syringe body (1) is provided with graduation marks (13).