CN204158808U - A kind of high pressure remaining needle - Google Patents
A kind of high pressure remaining needle Download PDFInfo
- Publication number
- CN204158808U CN204158808U CN201420529687.3U CN201420529687U CN204158808U CN 204158808 U CN204158808 U CN 204158808U CN 201420529687 U CN201420529687 U CN 201420529687U CN 204158808 U CN204158808 U CN 204158808U
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- China
- Prior art keywords
- casing seat
- batching pig
- groove
- block
- draw point
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Abstract
The utility model discloses a kind of high pressure remaining needle, it is characterized in that: comprise casing seat, block, the sleeve pipe being socketed on casing seat front end and tail end 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 and the needle stand of described draw point are fixed, the other end slidably stretches out described sleeve pipe through block, batching pig successively, and described batching pig is tightly connected with casing seat and draw point respectively; Described block is sheathed on casing seat inside and is located between batching pig and needle stand, and top, its one end is pressed on batching pig.This utility model by recessing on batching pig, and offers through hole on casing seat, can by batching pig and casing seat compact siro spinning technology by injecting glue in groove, has 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 high pressure 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 there is the problem of seepage, a kind of high pressure remaining needle is provided, this structure is by recessing on batching pig, and through hole is offered on casing seat, can by batching pig and casing seat compact siro spinning technology by injecting glue in groove, 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 high pressure remaining needle, it is characterized in that: comprise casing seat, block, the sleeve pipe being socketed on casing seat front end and tail end 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 and the needle stand of described draw point are fixed, the other end slidably stretches out described sleeve pipe through block, batching pig successively, and described batching pig is tightly connected with casing seat and draw point respectively; Described block is sheathed on casing seat inside and is located between batching pig and needle stand, and top, its one end is pressed on batching pig.
Further, described block excircle offers the first groove, corresponding, the wall of described casing seat is provided with the first through hole, by the first through hole perfusion glue to the first groove, forms the fixed structure that is singly adhesively fixed; Or the excircle of described batching pig is provided with the second groove, corresponding, the wall being positioned at described casing seat is provided with the second through hole, by the second through hole perfusion glue to the second annular groove, forms two fixed structure that is adhesively fixed.
As preferably, described first groove and the second groove are annular groove.
As preferably, described block is sheathed on draw point, and its excircle and central part are tightly connected with casing seat and draw point respectively.
As preferably, the section of described first groove and the second groove centrally axle is trapezium structure, and its width reduces from outside to inside gradually.
Implement this utility model, there is following beneficial effect:
1, this utility model arranges block at batching pig end, and groove and through hole is offered respectively on block and casing seat, block is fixedly connected with casing seat by the mode of being injected glue by through hole in groove, thus under the stop of block, substantially increase the bearing capacity of batching pig, prevent and be ejected casing seat, have that compression resistance is high, use safety and reliable and stable feature.
2, block of the present utility model and casing seat and draw point are tightly connected; when batching pig bears excess pressure, and occur the situation of leak of liquid, batching pig can prevent leak of liquid from going out casing seat further; this structure has dual anti-leak protection, substantially increases use safety and reliability.
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 comprise be provided with import 11 and outlet 12 casing seat 1, block 2, the sleeve pipe 3 being socketed on casing seat 1 front end and tail end and needle stand 4, the batching pig 5 being located at casing seat 1 inside and draw point 6, described import 11 is external to the delivery outlet of syringe, one end and the needle stand 4 of described draw point 6 are fixed, the other end slidably stretches out described sleeve pipe 3 through block 5, batching pig 5 successively, and described batching pig 5 is tightly connected with casing seat 1 and draw point 6 respectively; Described block 2 is sheathed on casing seat 1 inside and is located between batching pig 5 and needle stand 6, and top, its one end is pressed on batching pig 5.
In the present embodiment:
As shown in Figure 2, described block 2 excircle offers the first groove 21, corresponding, the wall of described casing seat 1 is provided with the first through hole 13, pours into glue to the first groove 21 by the first through hole 13, form the fixed structure that is singly adhesively fixed; Or the excircle of described batching pig 5 is provided with the second groove 51, corresponding, the wall being positioned at described casing seat 1 is provided with the second through hole 14, pours into glue to the second groove 51 by the second through hole 14, forms two fixed structure that is adhesively fixed.When mounted, the connected mode of interference fit is adopted to receive in casing seat 1 by batching pig 5 cover, first batching pig 5 is assembled to the position that the second groove 51 is right against the first through hole 13, again block 2 cover is received casing seat 1 inner, and when block 2 move to the second groove 51 be right against the position of the second through hole 14 time, inject glue by the second through hole 14 toward the second groove 51, make glue be full of the second groove 51, block 2 and casing seat 1 are sealedly and fixedly connected.In use, batching pig 5, under the stop of block 2, can bear higher pressure and not be ejected.Further, when the Lack of support of block 2, glue can be injected by the first through hole 13 in the first groove 21, batching pig 5 is also sealedly and fixedly connected with casing seat 1, the voltage endurance capability of further raising batching pig 5, bearing capacity is high, use safety and reliable and stable.
In order to make the glue in groove can be glued on casing seat 1 with larger area, improve the ability of the bearing load of block 2, thus ensure that batching pig 5 is not ejected, described first groove 21 and the second groove 51 are annular groove.The section of described first groove 21 and the second groove 51 centrally axle is trapezium structure, and its width reduces from outside to inside gradually.
When batching pig 5 bears excess pressure, its sealing property will reduce greatly, thus occurs the situation of leak of liquid, for improving the sealing property of batching pig 5 further, described block 2 is sheathed on draw point 6, and its excircle and central part are tightly connected with casing seat 1 and draw point 6 respectively.This structure has dual anti-leak protection, substantially increases use safety and the reliability of remaining needle.As shown in Figure 1.
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 (5)
1. a high pressure remaining needle, it is characterized in that: comprise casing seat, block, the sleeve pipe being socketed on casing seat front end and tail end 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 and the needle stand of described draw point are fixed, the other end slidably stretches out described sleeve pipe through block, batching pig successively, and described batching pig is tightly connected with casing seat and draw point respectively; Described block is sheathed on casing seat inside and is located between batching pig and needle stand, and top, its one end is pressed on batching pig.
2. a kind of high pressure remaining needle according to claim 1, it is characterized in that: described block excircle offers the first groove, corresponding, the wall of described casing seat is provided with the first through hole, by the first through hole perfusion glue to the first groove, form the fixed structure that is singly adhesively fixed; Or the excircle of described batching pig is provided with the second groove, corresponding, the wall being positioned at described casing seat is provided with the second through hole, by the second through hole perfusion glue to the second annular groove, forms two fixed structure that is adhesively fixed.
3. a kind of high pressure remaining needle according to claim 2, is characterized in that: described first groove and the second groove are annular groove.
4. a kind of high pressure remaining needle according to claim 2, is characterized in that: described block is sheathed on draw point, and its excircle and central part are tightly connected with casing seat and draw point respectively.
5. a kind of high pressure remaining needle according to Claims 2 or 3, is characterized in that: the section of described first groove and the second groove centrally axle is trapezium structure, and its width reduces from outside to inside gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420529687.3U CN204158808U (en) | 2014-09-15 | 2014-09-15 | A kind of high pressure remaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420529687.3U CN204158808U (en) | 2014-09-15 | 2014-09-15 | A kind of high pressure remaining needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204158808U true CN204158808U (en) | 2015-02-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420529687.3U Active CN204158808U (en) | 2014-09-15 | 2014-09-15 | A kind of high pressure remaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204158808U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2019019169A1 (en) * | 2017-07-28 | 2019-01-31 | 福建省百仕韦医用高分子股份有限公司 | Indwelling needle having indwelling air cavity |
-
2014
- 2014-09-15 CN CN201420529687.3U patent/CN204158808U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019019169A1 (en) * | 2017-07-28 | 2019-01-31 | 福建省百仕韦医用高分子股份有限公司 | Indwelling needle having indwelling air cavity |
| 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 |