CN104548277B

CN104548277B - safety syringe

Info

Publication number: CN104548277B
Application number: CN201410540478.3A
Authority: CN
Inventors: 吴国城
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-10-16
Filing date: 2014-10-14
Publication date: 2019-07-05
Anticipated expiration: 2034-10-14
Also published as: TWM471280U; CN104548277A

Abstract

The invention relates to a safety injector, which comprises a syringe, a push rod which can be extended into the syringe, and a protective device arranged on the outer edge of the syringe; the syringe comprises a hollow syringe body, a needle head connected with one end of the syringe body and a supporting part which can be separated or connected with the other end of the syringe body, wherein the syringe body is internally encircled to form a hollow syringe body; therefore, through the design that the supporting part is separated from the barrel body, when the sleeve of the protection device is sleeved, the supporting part can be detached from the barrel body firstly, so that the sleeve can be easily sleeved at the outer edge of the barrel body, and when the sleeve is used, the sleeve is ensured not to be separated from the barrel body and not to slide out, and can be tightly clamped with the ring fixing piece of the protection device, the needle head is effectively prevented from being exposed to hurt people, and the effect of safe use is further improved.

Description

Safety injector

Technical field

The invention relates to a kind of design of syringe, especially a kind of safety injector.

Background technique

It presses, general syringe is installed with a syringe needle in the front end of a syringe, and the inner hole of the syringe is inserted in a push rod, And it is used for injection；And finished in injection and then be arranged pipe sleeve with one and close the syringe needle, to prevent from being stabbed by syringe needle and environment The situations such as pollution.

But missing be to increase by a sheathed pipe, to be sleeved on the syringe needle, however, due to the sheathed pipe with The syringe is that separate design but can not find sheathed pipe, can not finish in injection to take at any time after the completion of injecting afterwards sometimes With, thus cause using upper inconvenience；Furthermore it is no lack of the improvement of more safety injectors on the market, however its structure and use Mode is very complicated, and can not be effectively reduced under situation in production cost, and the generally rate used is not high.

Refering to fig. 1, Fig. 2, the applicant, which had previously had, develops the protective device 2 that one kind can be sheathed on the syringe 1, i.e., TaiWan, China letters patent number: No. M394823 " protective device of injection tube syringe needle ", the protective device 2 combine a syringe 1 into It exercises and uses, and the protective device 2 has ring seat 21, ring seat 22 and a sleeve 23 on one；Wherein, on 23 inner wall of sleeve Be convexly equipped with a fin ring 231, at the same from 23 one end of sleeve toward edge surface on respectively offer together long crack slot 232, and should Fin ring 231 and the thickness of two long 232 intersection of crack slot are less than the thickness of fin ring 231；Therefore in use, through After the upper and lower ring seat 22,21 is fixed in the syringe 11 of the syringe 1, recycles 23 sets of the sleeve excessively lower ring seat 21 and tie When ring seat 22 on this is fixed in conjunction, which will make the long setting of crack slot 232 due to force and easily be softened, and simultaneously should Fin ring 231 is softened, so that the sleeve 23 is arranged easily, and then smoothly passes over the lower ring seat 21, and the sleeve 23 fin ring 231 is fixed on this in ring seat 22, completes the assembling of the protective device 2 and the syringe 1 whereby.

Cooperation refering to Fig. 3, when the syringe 1 after use, personnel can push directly on the sleeve 23 toward lower 21 side of ring seat To movement, until the fin ring 231 is fixed in the lower ring seat 21, while 23 protruding length of sleeve will be more than the syringe 1 Syringe needle 111, avoid the personnel of the subsequent processing syringe 1 not stabbed by the syringe needle 111 whereby；So, it is sent out after actual use It is existing, due to being provided with the long crack slot 232 on the sleeve 23, although and the sleeve 23 can be made easily to pass through the lower ring seat 21 and consolidated Due to 11 outer rim of syringe, but opposite, in use, if personnel are firmly careless, when pushing the sleeve 23 toward the lower ring seat 21, Also it relatively easily causes the sleeve 23 to be more than the lower ring seat 21 and be detached from the syringe 11, causes the syringe needle 111 can not be by instead To the cladding of the sleeve 23, make personnel still in the security concerns threatened by the syringe needle 111, thus the above-mentioned syringe 1 with The protective device 2 still has improved space.

Summary of the invention

Therefore, the purpose of the present invention is to provide a kind of tool safety injector, can ensure that the sleeve can cover easily at this The outer rim of stack shell, the sleeve can be more generated with the ring firmware of the protective device without departing from skidding off the ring firmware and stack shell Close clip effect, the case where effectively avoiding the syringe needle exposed and stab personnel, and can increase safe handling effect.

In order to achieve the above object, solution of the invention is:

A kind of safety injector includes:

One syringe comprising there are an inner turns to cross hollow stack shell, one connects the syringe needle of the stack shell one end and one can Separate or be connected on the support portion of the stack shell other end, and the aforementioned stack shell be respectively formed with one with the support portion joint can be mutual Admittedly the solid conjunction portion closed；

One push rod can be stretched and is placed in the syringe；

One protective device comprising have and a set of be fixed in the stack shell outer rim and the ring firmware close to the needle position, Yi Jiyi It can be sheathed on the sleeve of stack shell periphery, and be formed with a blocking part on the aforementioned ring firmware, the end of the another sleeve is formed with One joint portion that can connect clip with the blocking part.

Further, this conjunction portion is screw thread admittedly, make the stack shell and the support portion through fixation in conjunction with screw thread rotation lock mode.

Further, it is formed with a ring rib on the joint portion, the opposite ring ribbed shape is formed on the another blocking part and is arranged Annular groove.

Therefore through the support portion with the stack shell in isolated design, therefore when the sleeve of the protective device is intended to be sheathed on this When the outer rim of stack shell, after the support portion first being separated the stack shell, so that the sleeve can be sheathed on the outer rim of the stack shell easily, and And the sleeve can be made in use, ensuring that the sleeve, and can be with the protective device without departing from the ring firmware skidded off on the stack shell The close clip of ring firmware, effectively reach and avoid the syringe needle exposed and stab the safety effect of personnel.

Detailed description of the invention

Fig. 1 is known schematic diagram；

Fig. 2 is known usage state diagram；

Fig. 3 is known usage state diagram；

Fig. 4 is the perspective view of the first preferred embodiment of the invention；

Fig. 5 is the usage state diagram of the first preferred embodiment of the invention；

Fig. 6 is the usage state diagram of the first preferred embodiment of the invention.

[symbol description]

(known)

1 syringe, 11 syringe

111 syringe needles

2 protective devices

Ring seat in 21 lower ring seats 22

23 sleeve, 231 fin ring

232 long crack slots

(present invention)

3 safety injectors

31 syringe, 32 push rod

33 protective device, 311 stack shell

312 syringe needle, 313 support portion

331 ring firmware, 332 sleeve

3311 blocking part, 3321 joint portion

3131,3111 conjunction portions admittedly.

Specific embodiment

For the present invention aforementioned and other technology contents, feature and effect refer to the preferable reality of schema in following cooperation It applies in the detailed description of example, can clearly understand.

Refering to Fig. 4, Fig. 5, safety injector 3 of the present invention includes a syringe 31, and one can stretch pushing away in the merging syringe 31 Bar 32 and a protective device 33 in 31 outer rim of syringe；Wherein, the syringe 31 include an inner turns cross it is hollow Stack shell 311, the syringe needle 312 of connection 311 one end of stack shell and one separable or be connected on 311 other end of stack shell Support portion 313, and the aforementioned stack shell 311 and 313 joint of support portion be respectively formed with one can mutually close admittedly solid conjunction portion 3111, 3131, and conjunction portion 3111,3131 can be a screw thread when actual fabrication admittedly for this, so that the stack shell 311 and support portion 313 can pass through Conjunction portion 3111,3131 be combined with each other or separates admittedly for this.

Still continue aforementioned, which includes a set of to be fixed in 311 outer rim of stack shell and close to 312 position of syringe needle Ring firmware 331 and one it can be sheathed on the sleeve 332 of 311 periphery of the stack shell, and be formed with a card on the aforementioned ring firmware 331 Tug portion 3311, the end of the another sleeve 332 are formed with a joint portion 3321 that can connect clip with the blocking part 3311, and in this In embodiment, which is a ring rib, and the another blocking part 3311 forms an annular groove relative to ring ribbed shape setting To indicate；In addition, the ring firmware 331 can be directly fixed in 311 outer rim of stack shell, or when being made with the stack shell 311, together with this Ring firmware 331 forms simultaneously, and below the present embodiment in such a way that the stack shell 311 is integrated with the ring firmware 331 for illustrate.

Refering to Fig. 4, Fig. 5, when assembling, can pass through the design in the conjunction portion 3111,3131 admittedly, first be about to consolidating for the support portion 313 Conjunction portion 3131 is separated with the solid conjunction portion 3111 of the stack shell 311, so as to so may be used after the support portion 313 is separated with the stack shell 311 Directly the sleeve 332 is sheathed in 311 outer rim of stack shell by solid 3111 direction of conjunction portion of the stack shell 311, so that the sleeve 332 During being sheathed on 311 outer rim of stack shell, the support portion 313 or the blocking of the ring firmware 331 not will receive, and can cover easily If in 311 outer rim of stack shell, after then the support portion 313 and the stack shell 311 are be combined with each other again, therefore, the sleeve 332 Need not as it is known offer isometric crack slot 232 in the case where, can be combined in easily in the outer rim of the syringe 31；Cooperation Refering to Fig. 6, then after the completion of 3 use of syringe, the sleeve 332 need to only be pushed toward the ring firmware 331, until the clip Behind portion 3311 and the mutual clip in joint portion 3321；Certainly in use, because of the design without the known long crack slot, It will can avoid the sleeve 332 and generate the effect for excessively strutting, and being detached from the stack shell because of the long crack slot；In this way, can be true The sleeve 332 is protected without departing from skidding off the ring firmware 331, and can be had with the close clip of ring firmware 331 of the protective device 33 Effect, which reaches, avoids the safety effect that is exposed and stabbing personnel of syringe needle 312.

Conclude aforementioned, safety injector of the present invention, stack shell and the support portion through the syringe can be in separate, setting of combining Meter, when so that the sleeve of the protective device being intended to be arranged, after the support portion first being separated the stack shell, so that the sleeve can be light It is easily arranged the outer rim of the stack shell, and the sleeve can be made in use, ensuring the sleeve without departing from skidding off the ring firmware, and energy With the close clip of ring firmware of the protective device, effectively reaches and avoid the syringe needle exposed and stab the safety effect of personnel.

Only as described above, only illustrates presently preferred embodiments of the present invention, when cannot limit implementation of the present invention with this Range, i.e., generally according to simple equivalent changes and modifications made by scope of the present invention patent and description of the invention content, all It should still remain within the scope of the patent.

Claims

1. a kind of safety injector, which is characterized in that include:

One syringe comprising there are an inner turns to cross hollow stack shell, the syringe needle of the connection stack shell one end and one separate Or it is connected on the support portion of the stack shell other end, and the aforementioned stack shell is respectively formed with one with the support portion joint and can mutually close admittedly Solid conjunction portion；

One can stretch the push rod being placed in the syringe；

One protective device comprising have and a set of be fixed in the stack shell outer rim and can be covered close to the ring firmware of the needle position and one Sleeve set on stack shell periphery, and a blocking part is formed on the aforementioned ring firmware, the end of the another sleeve is formed with one can Connect the joint portion of clip with the blocking part, and the solid conjunction portion in the support portion and the solid conjunction part of the stack shell are from so that the support portion After separating with the stack shell, which is inserted in the stack shell outer rim by the solid conjunction portion direction of the stack shell.

2. safety injector as described in claim 1, it is characterised in that: conjunction portion is screw thread admittedly for this, makes the stack shell and the support Portion combines through screw thread rotation lock mode and fixes.

3. safety injector as described in claim 1, it is characterised in that: be formed with a ring rib on the joint portion, the another clip The annular groove of an opposite ring ribbed shape setting is formed in portion.