CN204158807U - A kind of pressure resistant type remaining needle - Google Patents
A kind of pressure resistant type remaining needle Download PDFInfo
- Publication number
- CN204158807U CN204158807U CN201420502985.3U CN201420502985U CN204158807U CN 204158807 U CN204158807 U CN 204158807U CN 201420502985 U CN201420502985 U CN 201420502985U CN 204158807 U CN204158807 U CN 204158807U
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- groove
- fixture block
- batching pig
- casing seat
- pressure resistant
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Abstract
The utility model discloses a kind of pressure resistant type remaining needle, it is characterized in that: comprise casing seat, fixture block, the sleeve pipe being socketed on casing seat front end and tail end respectively and the needle stand being provided with import and outlet, the batching pig being located at casing seat inside and draw point, described import is external to the delivery outlet of syringe, one end of described draw point is fixedly connected with needle stand, and the other end slidably stretches out described sleeve pipe through batching pig; Described batching pig excircle offers groove, and corresponding, the wall of described casing seat offers groove, and fixture block enters groove by groove plug-in mounting, fixing batching pig.This structure by offering annular groove on batching pig, and recessing on casing seat, adopt fixture block to be connected on casing seat by batching pig, substantially increase the compression resistance of batching pig, prevent batching pig to be ejected, have that structure is simple, resistance to pressure is high and the beneficial effect of good airproof performance.
Description
Technical field
This utility model relates to remaining needle, refers in particular to a kind of pressure resistant type remaining needle, belongs to technical field of medical equipment.
Background technology
Venous detaining needle is the medical apparatus and instruments for vein detaining needle for fluids infusion connecting high pressure injector, be mainly used in clinical vein puncture, sick body is carried out to medication, provides nutrition, repeatedly the puncture blood vessel injury caused and the misery alleviating patient can be avoided simultaneously, also be conducive to the manipulation strength reducing nurse.The structure of existing remaining needle applies glue in the periphery of batching pig and is pressed in casing seat, increasing friction force is carried out by the bonding force between batching pig and casing seat and interference fit, form Hermetical connecting structure, stop fluid seepage in casing seat out, thus the safety of remaining needle work when ensureing transfusion and reliability.But, bonding force between the batching pig of the venous detaining needle of this structure and casing seat is not high, the maximum pressure born is only 200psi (English pound/square inch), voltage endurance capability is not strong, particularly when high-pressure injection developing agent, the operating pressure of remaining needle up to 300psi, thus makes sealing-plug hold to can't stand the pressure of liquid in high pressure injector and be ejected, causing the unexpected injury of patient and the infection of medical personnel's disease.
Utility model content
It is low that the purpose of this utility model is to solve existing remaining needle voltage endurance capability, easily occur that batching pig is ejected and occurs the problem of fluid seepage, a kind of pressure resistant type remaining needle is provided, this structure by offering annular groove on batching pig, and recessing on casing seat, adopt fixture block to be connected on casing seat by batching pig, substantially increase the compression resistance of batching pig, prevent batching pig to be ejected, have that structure is simple, resistance to pressure is high and the feature of good airproof performance.
The purpose of this utility model can reach by the following technical solutions:
A kind of pressure resistant type remaining needle, it is characterized in that: comprise casing seat, fixture block, the sleeve pipe being socketed on casing seat front end and tail end respectively and the needle stand being provided with import and outlet, the batching pig being located at casing seat inside and draw point, described import is external to the delivery outlet of syringe, one end of described draw point is fixedly connected with needle stand, and the other end slidably stretches out described sleeve pipe through batching pig; Described batching pig excircle offers groove, and corresponding, the wall of described casing seat offers groove, and fixture block enters groove by groove plug-in mounting, fixing batching pig.
As preferably, the both ends of the surface upper end of described fixture block abuts against with the medial surface of groove respectively, and one end bottom is connected to the medial surface of groove.
As preferably, the U-shaped structure of described fixture block, its two-arm plug-in mounting enters in groove.
As preferably, described groove is annular groove, and its width is greater than the thickness of fixture block.
As preferably, the insied width of described fixture block is greater than the interior circular diameter of annular groove.
As preferably, described fixture block is wedge structure, and the cross section of described groove centrally axle is trapezium structure, and the head that stretches into of described groove and fixture block matches.
Implement this utility model, there is following beneficial effect:
This utility model offers groove on batching pig, and offers groove on the wall that casing seat is corresponding, adopts fixture block to be entered in groove by groove plug-in mounting, thus is fixedly connected with casing seat by batching pig.Under the effect of casing seat internal liquid pressure, batching pig can bear very high pressure and not be ejected, and makes liquid not produce leakage, use safety and reliable and stable.And only need take off fixture block, then batching pig can be ejected under a certain pressure, changes fast, have structure simple, bearing capacity is strong and change beneficial effect easily.
Accompanying drawing explanation
In order to be illustrated more clearly in this utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the explosive view of specific embodiment.
Fig. 2 is the cut-away view of specific embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, be clearly and completely described the technical scheme in this utility model embodiment, obviously, described embodiment is only this utility model part embodiment, instead of whole embodiments.Based on the embodiment in this utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of this utility model protection.
Specific embodiment 1:
See figures.1.and.2, the present embodiment comprises and is provided with import 1-1 and the outlet casing seat 1 of 1-2, fixture block 2, the sleeve pipe 3 being socketed on casing seat 1 front end and tail end respectively and needle stand 4, the batching pig 5 being located at casing seat 1 inside and draw point 6, described import 1-1 is external to the delivery outlet of syringe, one end of described draw point 6 is fixedly connected with needle stand 4, and the other end slidably stretches out described sleeve pipe 3 through batching pig 5; Described batching pig 5 excircle offers groove 5-1, and corresponding, the wall of described casing seat 1 offers groove 1-3, and fixture block 2 enters groove 5-1 by groove 1-3 plug-in mounting, fixing batching pig 5.Adopt interference fit connected mode by batching pig 5 cover receive in casing seat 1, when batching pig 5 move to groove 5-1 be right against the position of groove 1-3 time, fixture block 2 is snapped fit onto in groove 5-1, thus batching pig 5 is fixedly connected on casing seat 1.In use, batching pig 5 can bear very high pressure and not be ejected, use safety and reliable and stable.And when batching pig changed by needs, only need take off fixture block, then it can be ejected under a certain pressure, and changes fast, and structure is simple, bearing capacity is strong and replacing is convenient.
As shown in Figure 2, to be firmly connected on groove 1-3 and plug-in mounting enters in groove 5-1 smoothly in order to make fixture block 2, the both ends of the surface upper end of described fixture block 2 abuts against with the medial surface of groove 1-3 respectively, and one end bottom is connected to the medial surface of groove 5-1.
The U-shaped structure of described fixture block 2, its two-arm plug-in mounting enters in groove 5-1.The two-arm end face of fixture block 2 is simultaneously inconsistent with the medial surface of groove 5-1, bears the pressure of batching pig to it with larger area, and make the stressed more even of fixture block, compression resistance is stronger, has and well uses stable and safety.
Described groove 5-1 is annular groove, and its width is greater than the thickness of fixture block 2.When batching pig 5 is socketed on casing seat 4, batching pig 5 does the rotation of certain angle without the need to centrally axle, directly can carry out socket assembling, and it is simple, convenient to install, and substantially increases the speed of installation.As illustrated in fig. 1 and 2.
The insied width of described fixture block 2 is greater than the interior circular diameter of annular groove.As shown in Figure 2.
Described fixture block is wedge structure, and the cross section of described groove centrally axle is trapezium structure, and the head that stretches into of described groove and fixture block matches.
As preferably, in order to fixture block 2 can more easily enter in groove by plug-in mounting, described fixture block 2 is wedge structure, and its thickness reduces from top to bottom gradually.Further, the cross section of described groove 5-1 centrally axle is trapezium structure, and the head that stretches into of described groove 5-1 and fixture block 2 matches.
Above disclosedly be only a kind of preferred embodiment of this utility model, certainly can not limit the interest field of this utility model with this, therefore according to the equivalent variations that this utility model claim is done, still belong to the scope that this utility model is contained.
Claims (6)
1. a pressure resistant type remaining needle, it is characterized in that: comprise casing seat, fixture block, the sleeve pipe being socketed on casing seat front end and tail end respectively and the needle stand being provided with import and outlet, the batching pig being located at casing seat inside and draw point, described import is external to the delivery outlet of syringe, one end of described draw point is fixedly connected with needle stand, and the other end slidably stretches out described sleeve pipe through batching pig; Described batching pig excircle offers groove, and corresponding, the wall of described casing seat offers groove, and fixture block enters groove by groove plug-in mounting, fixing batching pig.
2. a kind of pressure resistant type remaining needle according to claim 1, is characterized in that: the both ends of the surface upper end of described fixture block abuts against with the medial surface of groove respectively, and one end bottom is connected to the medial surface of groove.
3. a kind of pressure resistant type remaining needle according to claim 2, it is characterized in that: the U-shaped structure of described fixture block, its two-arm plug-in mounting enters in groove.
4. a kind of pressure resistant type remaining needle according to claim 1 and 2, is characterized in that: described groove is annular groove, and its width is greater than the thickness of fixture block.
5. a kind of pressure resistant type remaining needle according to any one of claims 1 to 3 claim, is characterized in that: the insied width of described fixture block is greater than the interior circular diameter of annular groove.
6. a kind of pressure resistant type remaining needle according to any one of claims 1 to 3 claim, is characterized in that: described fixture block is wedge structure, and the cross section of described groove centrally axle is trapezium structure, and the head that stretches into of described groove and fixture block matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420502985.3U CN204158807U (en) | 2014-09-02 | 2014-09-02 | A kind of pressure resistant type remaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420502985.3U CN204158807U (en) | 2014-09-02 | 2014-09-02 | A kind of pressure resistant type remaining needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204158807U true CN204158807U (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420502985.3U Active CN204158807U (en) | 2014-09-02 | 2014-09-02 | A kind of pressure resistant type remaining needle |
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| CN (1) | CN204158807U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941060A (en) * | 2015-06-29 | 2015-09-30 | 苏州林华医疗器械有限公司 | Isolation plug and venous indwelling needle with isolation plug |
| CN105833389A (en) * | 2016-05-20 | 2016-08-10 | 苏州林华医疗器械股份有限公司 | Pressure-resistance low-resistance insulated plug and venous indwelling needle |
| CN107789703A (en) * | 2017-11-16 | 2018-03-13 | 广东龙心医疗器械有限公司 | The indwelling structure and remaining needle of a kind of remaining needle |
| CN109310406A (en) * | 2016-04-20 | 2019-02-05 | 盖尔·密斯勒 | Epidural needle component |
-
2014
- 2014-09-02 CN CN201420502985.3U patent/CN204158807U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941060A (en) * | 2015-06-29 | 2015-09-30 | 苏州林华医疗器械有限公司 | Isolation plug and venous indwelling needle with isolation plug |
| CN104941060B (en) * | 2015-06-29 | 2018-04-20 | 苏州林华医疗器械股份有限公司 | A kind of batching pig and the venous detaining needle with the batching pig |
| CN109310406A (en) * | 2016-04-20 | 2019-02-05 | 盖尔·密斯勒 | Epidural needle component |
| CN105833389A (en) * | 2016-05-20 | 2016-08-10 | 苏州林华医疗器械股份有限公司 | Pressure-resistance low-resistance insulated plug and venous indwelling needle |
| CN107789703A (en) * | 2017-11-16 | 2018-03-13 | 广东龙心医疗器械有限公司 | The indwelling structure and remaining needle of a kind of remaining needle |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |