CN203694276U - Connecting structure for needle base and needle tube in safety injector - Google Patents
Connecting structure for needle base and needle tube in safety injector Download PDFInfo
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- CN203694276U CN203694276U CN201320860659.5U CN201320860659U CN203694276U CN 203694276 U CN203694276 U CN 203694276U CN 201320860659 U CN201320860659 U CN 201320860659U CN 203694276 U CN203694276 U CN 203694276U
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- needle holder
- syringe
- brace
- syndeton
- needle
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Abstract
The utility model provides a connecting structure for a needle base and a needle tube in a safety injector and belongs to the technical field of medical instruments. The problem that the present self-destroying injector is low in stability at a self-destroying moment is solved. A connecting tube with an outer diameter slightly smaller than the outer diameter of the needle tube is arranged at the front end of the needle tube of the connecting structure for the needle base and the needle tube in the safety injector; the needle base is of columnar shape; the front end of the needle base is used for connecting a needle; the connecting structure comprises a connecting sheet and a first connecting part; the connecting sheet is elastic and is arranged at the rear end of the needle base; the first connecting part is arranged on the inner side of the connecting tube; a second connecting part is arranged on the outer side of the connecting sheet; the connecting tube is sleeved on the needle base; an expanding element is arranged on the connecting sheet; the expanding element is resisted against the inner side of the connecting sheet and is used for causing the outer side of the connecting sheet to expand and to be in contact with the inner side of the connecting tube; under an expanding action of the expanding element, the first connecting part is in clamping connection with the second connecting part. The connecting structure for the needle base and the needle tube in the safety injector has the advantages of high stability and simple structure.
Description
Technical field
This utility model relates to a kind of safety injector, particularly the syndeton of needle holder and syringe in a kind of safety injector.
Background technology
Cause viral cross infection for fear of using antihygienic syringe, be widely used disposable syringe in technical field of medical instruments, at present in order to prevent some medical institutions, particularly the irregular individual medical clinic of minority is repeatedly used this disposable syringe, and disposable syringe has all increased self-destroying function at present.
Use and stab after use or in during Destruction staff for fear of syringe secondary, cause the serious consequence of viral cross infection, safety injector is extensively used in medical field now, and the medical st atute of many countries is more expressly provided necessarily and must be used.
Take a broad view of all now retractable safety injectors, the structure that its needle holder is fixing, is almost to do recessed or annular recess as large in syringe cylinder tapering entirely, even if having be made with flange, but also just in order to emphasize to reach the effect of groove; And then fasten with projection or the bulge loop of needle holder outside, this project organization, first we consider the difficulty or ease of mould development, will be in similar injection tube hollow barrel body, one of molding has the groove of depth dimensions requirement, is not thing easily at technological layer, even molding reluctantly, the dynamics of its engaging also may not necessarily reach requirement, and the engaging of this kind of friction, is very easily subject to variations in temperature and affects its engaging power.So, before packing, in transit or will use and install when entry needle, just having there is needle holder and receded into the situation that cannot normally use in syringe in the finished product of often working it out, causes user inconvenience greatly.Singly again that the engaging of ring-type not too can be avoided the spinning force imposing need to change entry needle time having, often make and then rotation of needle holder, group again group is not firm, can do not unload yet, cause user inconvenience greatly, if want to improve this condition, designer must be installed limited rotation device additional at syringe and needle holder again, has greatly increased the cost of mould development and the degree of difficulty of injection mo(u)lding and quality inspection.
For example Chinese patent literature data discloses a kind of safety self-destructing syringe [application number: 201010202077.9; Application publication number: CN101850144A], it comprises injection tube, injection rod, rubber stopper and is needle holder cylindraceous, rubber stopper is connected in the front portion of injection rod, needle holder is connected to the anterior inner side of injection tube, the front portion of injection rod has through rubber stopper and stretches out the bar head of rubber stopper, rod head end portion has keeper, needle holder inwall is provided with convex body, between the keeper of bar head and convex body, there is interface arrangment, and in the time that bar head is inserted in needle holder, keeper utilizes the elasticity of keeper self or convex body and can exit needle holder by anti-stopping bar head by convex body.This safety self-destructing syringe completes after injection, medical personnel continue injection rod to promote to injection direction, because rubber stopper has elasticity, now rubber stopper is extruded and keeper continues to move forward, keeper or convex body bending in moving process, when keeper is by after convex body, the keeper bending under elastic force effect or convex body reset, keeper after reset is stopped by convex body, force keeper to be connected in needle holder, again injection rod is retreated needle holder is withdrawn in injection tube, finally injection rod is fractureed and realize the object of self-destruction.
Above-mentioned safety self-destructing syringe is realized safety self-destruct after injector's health is extracted again, and can avoid causing the injury to human body because of self-destruction.But because needle holder and syringe are directly to make together with both are solidly connected by friction tight mode, once tight fit lost efficacy, needle holder may be rotated even and be moved with respect to needle holder, therefore, its stability is not high.Also all there is similar problem in existing other safety injector.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, and the syndeton of needle holder and syringe in a kind of stability safety injector high and simple in structure is provided.
The purpose of this utility model can realize by following technical proposal: the syndeton of needle holder and syringe in a kind of safety injector, described syringe front end place has the connecting cylinder smaller compared with syringe external diameter, described needle holder is column and needle holder front end for being connected with syringe needle, it is characterized in that, this syndeton comprises that needle holder rear end has the connecting portion one of elastic brace and connecting cylinder inner side, described brace outside has connecting portion two, described connecting cylinder is enclosed within needle holder, described brace place has expansion part, expansion part is resisted against brace inner side and brace outside is expanded to connecting cylinder inner side and contacts, above-mentioned connecting portion one and connecting portion two-phase clamping under the dilating effect of expansion part.
In this structure, after connecting portion one and connecting portion two clampings, can make needle holder be connected with connecting cylinder.Because connecting portion one and connecting portion two are connected together, therefore, needle holder is connected with connecting cylinder and can also prevents that needle holder from rotating with respect to connecting cylinder.
Certainly, when safety injector normally uses, expansion part is resisted against on brace all the time, thereby guarantees that connecting portion one and connecting portion two are connected together all the time.When self-destruction, the push rod on syringe first drives expansion part to depart from after needle holder, and the brace in needle holder contracts under self elastic force effect and makes connecting portion one and connecting portion two disengagings.Now, push rod continues drop-down needle holder could being drawn in syringe.
The syndeton of needle holder and syringe in above-mentioned safety injector, described connecting portion one is the projection that protrude connecting cylinder inner side, described connecting portion two is the groove that brace outside is recessed and match with projection.
Projection can make circumferential and axial being connected in connecting cylinder of needle holder after being embedded in groove.
The syndeton of needle holder and syringe in above-mentioned safety injector, the quantity of described projection is two and symmetrical is distributed in the both sides in connecting cylinder, the quantity of above-mentioned brace is all to have a groove on two and every brace.
Symmetrically arranged two projections can improve connective stability, and its stress equalization after connecting, and stability is higher.
The syndeton of needle holder and syringe in above-mentioned safety injector, described projection is inclined-plane towards the upper edge of connecting cylinder port, the Qie Gai inclined-plane, Ye Wei inclined-plane, upper edge of described brace groove is identical with the incline direction on inclined-plane, projection upper edge.
In the time of safety injector self-destruction, by first drop-down expansion part of push rod, expansion part by drop-down movement after, the dilating effect that brace is subject to is eliminated.Now, connecting portion one departs from connecting portion two.Then, continue drop-down push rod and drive needle holder to move down, needle holder is drawn in syringe the most at last.
As another scheme, the syndeton of needle holder and syringe in above-mentioned safety injector, described connecting portion one is recessed groove inside connecting cylinder, the projection that described connecting portion two protrudes for brace outside and projection and groove match.
In like manner, groove is same with projection cooperation can make circumferential and axial being connected in connecting cylinder of needle holder.
The syndeton of needle holder and syringe in above-mentioned safety injector, described expansion part is cylindric, between above-mentioned expansion part upper end and brace, there is the position limiting structure that can make expansion part move up and down in set point, described expansion part lower end outside has the portion of pushing for brace is strutted to connecting cylinder inner side, described in push portion's external diameter and be greater than the size between two braces.
When syringe normally uses, the portion of pushing of expansion part is resisted against brace inner side.Owing to pushing, portion's size is larger, therefore, can abut in connecting cylinder inner side after brace strain, finally makes Access Division one and Access Division two-phase clamping.
Position limiting structure can make expansion part axially in set point, move up and down along needle holder, and can prevent safety injector self-destruction like this time, expansion part and needle holder depart from, thereby affect the normal self-destruction of syringe.
The syndeton of needle holder and syringe in above-mentioned safety injector, described in push the spigot surface between portion and expansion part with inclination.
Owing to pushing, portion's size is larger, can make the portion of pushing move in needle holder smoothly, and by the expansion part after movement, brace is expanded by spigot surface.
The syndeton of needle holder and syringe in above-mentioned safety injector, described position limiting structure comprises the bulge loop one that protrude ringwise brace inner side, with the bulge loop two that protrude ringwise in expansion part outside, described bulge loop two between needle holder end and bulge loop one and bulge loop one can be resisted against on bulge loop two.
When can making the portion of pushing of expansion part depart from brace by bulge loop one and bulge loop two cooperations, can also guarantee that expansion part can not depart from needle holder.
The syndeton of needle holder and syringe in above-mentioned safety injector, has sealing ring between described needle holder and syringe.
Improve the sealing between needle holder and connecting cylinder by sealing circle.
The syndeton of needle holder and syringe in above-mentioned safety injector, described brace is obliquely installed, between described needle holder and connecting cylinder, there is gap, above-mentioned connecting portion two is close to brace end, outside, above-mentioned needle holder middle part has seal groove, above-mentioned sealing ring at seal groove place and sealing ring be pressed between needle holder and connecting cylinder.
Between needle holder and connecting cylinder, have gap, both junctions comprise between sealing ring between the two and two braces and connecting cylinder and being connected.Less contact area also can guarantee that connecting cylinder is firmly connected with needle holder.Meanwhile, as long as expansion part moves down, after the expansionary force that releasing brace is subject to, also can make smoothly needle holder and connecting cylinder depart from.
The syndeton of needle holder and syringe in above-mentioned safety injector, described connecting portion one protrudes from connecting cylinder inner side ringwise, and described brace and connecting cylinder inner side match, and above-mentioned connecting portion two is curved recessed groove on brace.
Because connecting portion one protrudes ringwise, therefore, between connecting portion one and connecting portion two, there is larger contact area, thereby guaranteed connective stability.
The syndeton of needle holder and syringe in above-mentioned safety injector, described needle holder comprises pedestal one and pedestal two, above-mentioned pedestal one is for being connected with syringe needle, above-mentioned brace is positioned on pedestal two, described pedestal one lower end outside has the recessed link slot of annular, described pedestal two is tubular and pedestal two inner sides have the connecting ring that annular is protruded, and described pedestal two is enclosed within above-mentioned connecting ring on pedestal one and under the dilating effect power of tensioner ring and is embedded in link slot place.
Using needle holder as split-type structural, can make whole needle holder be convenient to processing.
The syndeton of needle holder and syringe in above-mentioned safety injector, forms the recessed seal groove of annular between described pedestal one and the outside of pedestal two.
Meanwhile, pedestal one can be located sealing ring after being connected with pedestal two, need to be in the needle holder not extra seal groove of offering.The structure of having simplified needle holder, has lowered production cost.
Compared with prior art, in safety syringe, needle holder is with the syndeton of syringe because the projection on connecting cylinder matches with the groove on flexure strip, and the needle holder linking together and connecting cylinder can not only circumferentially be connected, and can also axially be connected.Can find out, in the time that assembling has the syringe of this structure, because needle holder can not rotated with respect to connecting cylinder, therefore, easy to assembly and packaging efficiency is higher.
Meanwhile, when syringe normally uses, because the portion of pushing of expansion part is resisted against connecting portion sheet inner side all the time, as long as the portion of pushing of expansion part does not depart from brace, projection and groove are just connected together all the time.While having guaranteed that syringe normally uses syringe needle can retraction syringe needle in, improved the stability in use of safety injector.
In addition, needle holder, owing to being split-type structural, can first be enclosed within sealing ring on pedestal one, then pedestal two is connected on pedestal one.Like this, can make sealing ring easy for installation.
Accompanying drawing explanation
Sectional structure schematic diagram when Fig. 1 is the syndeton self-destruction of needle holder and syringe in safety syringe.
Fig. 2 is the broken section structural representation of connecting cylinder and pinhead seat position in Fig. 1.
Fig. 3 is the sectional structure schematic diagram after the syndeton self-destruction of needle holder and syringe in safety syringe.
Fig. 4 is the sectional structure schematic diagram of connecting cylinder in the syndeton of needle holder and syringe in safety syringe.
Fig. 5 is the plan structure schematic diagram of connecting cylinder in the syndeton of needle holder and syringe in safety syringe.
Fig. 6 is the structural representation of needle holder in the syndeton of needle holder and syringe in safety syringe.
Fig. 7 is the structural representation of pedestal one in the syndeton of needle holder and syringe in safety syringe.
Fig. 8 is the structural representation of pedestal two in the syndeton of needle holder and syringe in safety syringe.
Fig. 9 be this needle holder with the syndeton of syringe in the structural representation of needle holder.
Figure 10 be this needle holder with the syndeton of syringe in the structural representation of expansion part.
Figure 11 is the syndeton schematic diagram of needle holder and syringe in embodiment bis-.
Figure 12 is the structural representation of needle holder in Figure 11.
Figure 13 is the sectional structure schematic diagram of connecting cylinder in Figure 11.
In figure, 1, syringe; 1a, connecting cylinder; 1a1, connecting portion one; 2, needle holder; 2a, brace; 2a1, connecting portion two; 2a2, seal groove; 2a3, bulge loop one; 2b, pedestal one; 2b1, link slot; 2c, pedestal two; 2c1, connecting ring; 3, syringe needle; 4, sealing ring; 5, expansion part; 5a, push portion; 5b, spigot surface; 5c, bulge loop two.
The specific embodiment
Embodiment mono-
As shown in Figure 1 and Figure 2 and Figure 3, the syringe 1 front end place of safety injector has connecting cylinder 1a, and the external diameter of connecting cylinder 1a is more smaller than syringe 1 external diameter, and needle holder 2 front ends and syringe needle 3 are connected.Connecting cylinder 1a is enclosed within needle holder 2, and both are connected.
In safety syringe, the syndeton of needle holder and syringe comprises that needle holder 2 rear ends have connecting portion one 1a1 inside elastic brace 2a and connecting cylinder 1a, brace 2a outside has connecting portion two 2a1, and connecting cylinder 1a is enclosed within needle holder 2 and connecting portion one 1a1 and connecting portion two 2a1 phase clampings.
In the present embodiment, connecting portion one 1a1 is the projection that protrude connecting cylinder 1a inner side, and connecting portion two 2a1 are recessed groove outside brace 2a, and groove and projection match and projection is embedded in groove.According to practical situation, also be feasible by the location swap of projection and groove, that is to say: connecting portion one 1a1 is recessed groove inside connecting cylinder 1a, connecting portion two 2a1 are that the projection that protrudes of brace 2a outside and projection and groove match, and see shown in Fig. 4 and Fig. 5.
The quantity of projection is two and symmetrical is distributed in the both sides in connecting cylinder 1a, and the quantity of brace 2a is all to have a groove on two and every brace 2a, and above-mentioned projection is corresponding one by one with groove.In the present embodiment, each projection forms by adjacent projection one and projection two, that is to say, needle holder 2 has six junction points with the junction of connecting cylinder 1.Certainly,, according to practical situation, each number of slugs also can arrange manyly.
Projection is inclined-plane towards the upper edge of connecting cylinder 1a port, the Ye Wei inclined-plane, upper edge of brace 2a groove, and the inclined-plane of groove upper edge is identical with the incline direction on inclined-plane, projection upper edge, and the angle tilting is also identical.
As shown in Fig. 2 and Fig. 9 and Figure 10, in needle holder 2, there is cylindrical expansion part 5, between expansion part 5 upper ends and brace 2a, there is the position limiting structure that can make expansion part 5 move up and down in set point.Expansion part 5 outsides, lower end have the 5a of the portion of pushing for brace 2a is strutted to connecting cylinder 1a inner side, push portion's 5a external diameter and are greater than the size between two brace 2a.In the present embodiment, push the spigot surface 5b between the 5a of portion and expansion part 5 with inclination.
Position limiting structure comprises bulge loop one 2a3 that protrude ringwise brace 2a inner side, and bulge loop two 5c that protrude ringwise of expansion part 5 outsides, bulge loop two 5c between needle holder 2 ends and bulge loop one 2a3 and bulge loop one 2a3 can be resisted against on bulge loop two 5c.Certainly, according to practical situation, position limiting structure also can adopt another scheme, that is: position limiting structure comprises recessed stopper slot inside brace, and expansion part outside is the inserted link of protrusion, and inserted link is arranged in stopper slot.
In order to improve sealing, between needle holder 2 and syringe 1, be provided with sealing ring 4.
Brace 2a is obliquely installed, and its end sections protrudes from needle holder 2 outsides.Between needle holder 2 and connecting cylinder 1a, have gap, connecting portion two 2a1 are close to brace 2a end.Needle holder 2 outsides, middle part have seal groove 2a2, and sealing ring 4 is positioned at seal groove 2a2 place, and sealing ring 4 is pressed between needle holder 2 and connecting cylinder 1a.
In the present embodiment, needle holder 2 comprises pedestal one 2b and pedestal two 2c, and pedestal one 2b and syringe needle 3 are connected, and brace 2a is positioned at pedestal two 2c ends.Outside pedestal one 2b lower end, have the recessed link slot 2b1 of annular, pedestal two 2c are tubular and pedestal two 2c inner sides have the connecting ring 2c1 that annular is protruded, and pedestal two 2c are enclosed within pedestal one 2b above and connecting ring 2c1 is embedded in link slot 2b1 place.Between pedestal one 2b and the outside of pedestal two 2c, form the recessed seal groove 2a2 of annular, sealing ring 4 is positioned in seal groove 2a2 place, sees shown in Fig. 6 and Fig. 7 and Fig. 8.
In this structure, after connecting portion one 1a1 and connecting portion two 2a1 clampings, can make needle holder 2 be connected with connecting cylinder 1a.Because connecting portion one 1a1 and connecting portion two 2a1 are connected together, therefore, needle holder 2 is connected with connecting cylinder 1a and can also prevents that needle holder 2 from rotating with respect to connecting cylinder 1a1.Can find out, when syringe needle 3 is connected in needle holder 2, because needle holder 2 can not be rotated, applies revolving force and just syringe needle 3 can easily be connected in needle holder 2, the syringe needle 3 after assembling is connected firmly with needle holder 2.
When the safety injector with this structure normally uses, the 5a of the portion of pushing of expansion part 5 conflicts in brace 2a inner side, under the dilating effect of expansion part 5, brace 2a outside is resisted against connecting cylinder 1a inner side, finally makes connecting portion one 1a1 and stable being connected together of connecting portion two 2a1.Now, because expansion part 5 does not depart from needle holder 2, in the normal use procedure of syringe needle holder 2 can retraction syringe 1 in.
When safety injector self-destruction, the pulling department on push rod pulls expansion part 5 to move down.Expansion part after moving down 5 5a of the portion of pushing on it departs from brace 2a inner side, and brace 2a bounces back under self elastic force effect, and makes brace 2a outside depart from connecting cylinder 1a.Certainly, connecting portion one 1a1 and connecting portion two 2a1 now also depart from.Under the effect of position limiting structure, the expansion part 5 after moving down can not depart from needle holder 2, continues to pull after push rod, and needle holder 2 is drawn in syringe 1 the most at last, realizes self-destruction.
Embodiment bis-
The present embodiment is basic identical with structure and the principle of embodiment mono-, different place is: connecting portion one 1a1 protrudes from connecting cylinder 1a inner side ringwise, brace 2a is the arc matching with connecting cylinder 1a inner side, connecting portion two 2a1 are curved recessed groove outside brace 2a, see shown in Figure 11 and Figure 12 and Figure 13.
Specific embodiment described herein is only to the explanation for example of this utility model spirit.This utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (10)
1. the syndeton of needle holder and syringe in a safety injector, described syringe (1) front end place has the connecting cylinder (1a) smaller compared with syringe (1) external diameter, described needle holder (2) is column and needle holder (2) front end is used for being connected with syringe needle (3), it is characterized in that, this syndeton comprises that needle holder (2) rear end has the connecting portion one (1a1) of elastic brace (2a) and connecting cylinder (1a) inner side, described brace (2a) outside has connecting portion two (2a1), described connecting cylinder (1a) is enclosed within needle holder (2), described brace (2a) locates to have expansion part (5), expansion part (5) is resisted against brace (2a) inner side and brace (2a) outside is expanded to connecting cylinder (1a) inner side and contacts, above-mentioned connecting portion one (1a1) and the clamping of connecting portion two (2a1) phase under the dilating effect of expansion part (5).
2. the syndeton of needle holder and syringe in safety injector according to claim 1, it is characterized in that, described connecting portion one (1a1) is the projection that protrude connecting cylinder (1a) inner side, described connecting portion two (2a1) for brace (2a) outside recessed and the groove that matches with projection.
3. the syndeton of needle holder and syringe in safety injector according to claim 2, it is characterized in that, the quantity of described projection is two and symmetrical is distributed in the both sides in connecting cylinder (1a), the quantity of above-mentioned brace (2a) is that two and every brace (2a) outside all has a groove, and above-mentioned expansion part (5) is positioned between two braces (2a).
4. the syndeton of needle holder and syringe in safety injector according to claim 3, it is characterized in that, on described projection, be inclined-plane towards the upper edge of connecting cylinder (1a) port, the Qie Gai inclined-plane, Ye Wei inclined-plane, upper edge of described brace (2a) groove is identical with the incline direction on inclined-plane, projection upper edge.
5. the syndeton of needle holder and syringe in safety injector according to claim 1, it is characterized in that, described connecting portion one (1a1) is the recessed groove in connecting cylinder (1a) inner side, and the projection that described connecting portion two (2a1) is brace (2a) outside protrusion and projection and groove match.
6. according to the syndeton of needle holder and syringe in the safety injector described in claim 1 or 2 or 3 or 4 or 5, it is characterized in that, described expansion part (5) is cylindric, between above-mentioned expansion part (5) upper end and brace (2a), there is the position limiting structure that can make expansion part (5) move up and down in set point, described expansion part (5) lower end outside has the portion of pushing (5a) for brace (2a) is strutted to connecting cylinder (1a) inner side, described in push portion (5a) external diameter and be greater than the size between two braces (2a).
7. the syndeton of needle holder and syringe in safety injector according to claim 6, is characterized in that, described in push the spigot surface (5b) between portion (5a) and expansion part (5) middle part with inclination.
8. the syndeton of needle holder and syringe in safety injector according to claim 6, it is characterized in that, described position limiting structure comprises the bulge loop one (2a3) that protrude ringwise brace (2a) inner side, and expansion part (5) the outside bulge loop two (5c) of protrusion ringwise, described bulge loop two (5c) is positioned between needle holder (2) end and bulge loop one (2a3) and bulge loop one (2a3) can be resisted against on bulge loop two (5c).
9. the syndeton of needle holder and syringe in safety injector according to claim 1, it is characterized in that, described connecting portion one (1a1) protrudes from connecting cylinder (1a) inner side ringwise, described brace (2a) matches with connecting cylinder (1a) inner side, and above-mentioned connecting portion two (2a1) is the upper curved recessed groove of brace (2a).
10. according to the syndeton of needle holder and syringe in the safety injector described in claim 1 or 2 or 3 or 4 or 5, it is characterized in that, described needle holder (2) comprises pedestal one (2b) and pedestal two (2c), above-mentioned pedestal one (2b) is for being connected with syringe needle (3), above-mentioned brace (2a) is positioned on pedestal two (2c), described pedestal one (2b) lower end outside has the recessed link slot (2b1) of annular, described pedestal two (2c) is tubular and pedestal two (2c) inner side has the connecting ring (2c1) that annular is protruded, described pedestal two (2c) is enclosed within the upper and connecting ring (2c1) of pedestal one (2b) and is embedded in link slot (2b1) and locates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320860659.5U CN203694276U (en) | 2013-12-25 | 2013-12-25 | Connecting structure for needle base and needle tube in safety injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320860659.5U CN203694276U (en) | 2013-12-25 | 2013-12-25 | Connecting structure for needle base and needle tube in safety injector |
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| Publication Number | Publication Date |
|---|---|
| CN203694276U true CN203694276U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320860659.5U Withdrawn - After Issue CN203694276U (en) | 2013-12-25 | 2013-12-25 | Connecting structure for needle base and needle tube in safety injector |
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| CN (1) | CN203694276U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103638582A (en) * | 2013-12-25 | 2014-03-19 | 徐雪花 | Connection structure for needle head seat and needle cylinder of safe syringe |
| CN104548283A (en) * | 2015-01-27 | 2015-04-29 | 徐雪花 | Limit mechanism of needle holder in retraction type safety syringe |
| CN110545865A (en) * | 2017-04-04 | 2019-12-06 | 尼普洛株式会社 | Syringe-type discharge device |
-
2013
- 2013-12-25 CN CN201320860659.5U patent/CN203694276U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103638582A (en) * | 2013-12-25 | 2014-03-19 | 徐雪花 | Connection structure for needle head seat and needle cylinder of safe syringe |
| WO2015096560A1 (en) * | 2013-12-25 | 2015-07-02 | 徐雪花 | Connection structure between needle seat and syringe in safe injector |
| CN103638582B (en) * | 2013-12-25 | 2015-09-30 | 徐雪花 | The syndeton of needle holder and syringe in a kind of safety injector |
| EP3088028A4 (en) * | 2013-12-25 | 2017-08-23 | Xu, Xuehua | Connection structure between needle seat and syringe in safe injector |
| CN104548283A (en) * | 2015-01-27 | 2015-04-29 | 徐雪花 | Limit mechanism of needle holder in retraction type safety syringe |
| CN110545865A (en) * | 2017-04-04 | 2019-12-06 | 尼普洛株式会社 | Syringe-type discharge device |
| US11638791B2 (en) | 2017-04-04 | 2023-05-02 | Nipro Corporation | Syringe type ejection device |
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