CN203263934U - Connection plug assembly of telescopic protective type indwelling needle - Google Patents
Connection plug assembly of telescopic protective type indwelling needle Download PDFInfo
- Publication number
- CN203263934U CN203263934U CN 201320190302 CN201320190302U CN203263934U CN 203263934 U CN203263934 U CN 203263934U CN 201320190302 CN201320190302 CN 201320190302 CN 201320190302 U CN201320190302 U CN 201320190302U CN 203263934 U CN203263934 U CN 203263934U
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- connection plug
- connection
- tube component
- conduit tube
- plug assembly
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Abstract
The utility model relates to an instrument for leading a medium in a blood vessel, in particular to a connection plug assembly of a telescopic protective type indwelling needle. The connection plug assembly is characterized in that an outgoing stopping structure is arranged in an inner cavity of a connection plug, the peripheral surface of the connection plug is provided with a connection structure A, the connection structure A is connected with a catheter assembly or a handle, and the outgoing stopping structure and the connection structure A have overlapped sections in the axial direction. Compared with the prior art, the connection plug assembly of the telescopic protective type indwelling needle has the advantages that axial space is compact, the handle can be shortened, fastening between the connection plug assembly and the catheter assembly is reliable and appropriate in tightness, the connection plug assembly can be taken out conveniently, consistency of pulling-out force of connection plug assemblies is guaranteed easily in mass production of the connection plug assemblies, meanwhile manufacturing difficulty of accessories is reduced, and the yield is improved.
Description
Technical field
This utility model relates to a kind ofly introduces apparatus in blood vessel with medium, particularly a kind of connection plug assembly of flexible protection remaining needle.
Background technology
A kind of flexible protection remaining needle of the prior art as shown in Figure 1, it is comprised of conduit tube component 1 and handle, wherein handle is comprised of puncture needle tubing assembly 2 and multi-joint telescoping protective sleeve 3.The affixed a kind of connection plug 4 of handle front end; connection plug 4 front ends and conduit tube component 1 tail end are pegged graft with appropriate tight fit; after the complete puncture needle tubing Hide All that punctures is received into telescopic protective cover, by back operation power, connection plug is detached conduit tube component, thereby realize the disengaging of handle and conduit tube component.Because connection plug and catheter block are to be made by medical plastic; the Material shrinkage rate is large; cause using this appropriate tight fit connection the accuracy of manufacture is proposed high requirement; too tightly be difficult for detaching; too pine can cause again telescopic protective cover to launch fully just to detach, and assembling coordinates partially loose situation to happen occasionally, and percent defective is higher; and the degree of tightness that catheter block separates with connection plug differs, and causes again operating handle not good.
For the puncture needle tubing that prevents from being received into is overflowed again, a kind of stopping is set on connection plug usually structure, this stops structure and usually being comprised of a kind of symmetrical elastic tongue piece, tongue piece is arranged on the connection plug rear end, arrange separately in the axial direction, axial space is compact not, has occupied like this handle axis direction certain space, make a whole set of handle longer, actual operation is not fully up to expectations.
The utility model content
The purpose of this utility model is to overcome weak point in prior art and provides the connection plug assembly that a kind of axial space is compacter, make the flexible protection remaining needle of decreased food shortening, further purpose of the present utility model to be to provide a kind of connection plug assembly that is connected the degree of tightness appropriateness with conduit tube component, connects the flexible protection remaining needle that reliably conveniently detaches again.
The purpose of this utility model realizes by following approach.
The connection plug assembly of flexible protection remaining needle; comprise connection plug and stop and structure; connection plug and stop the SMIS that structure and have the cavity that contains dress puncture needle tubing; affixed or the Construction integration of connection plug rear end and handle; but the connection plug front end is connected in the plug mode with conduit tube component; it forms main points and is: stop and structure installation in the connection plug inner chamber; be provided with a kind of connection structure A on the connection plug peripheral surface; this connects structure A or is connected with conduit tube component or is connected with handle; in the axial direction, this stop structure be connected with this structure A have overlapping paragraph.
Like this, allow and stop structure and overlap on axis direction with being connected structure A, abdicate connection plug axial direction certain space, can allow handle the time can draw close in assembling more forward, operating grip is significantly shortened and is made designs simplification virtually.
The purpose of this utility model can also realize by following approach.
Stop and the leading portion that structure is positioned at the connection plug inner chamber, connect structure A and be connected with conduit tube component.
Further be optimized for:
Stop and the leading portion that structure is positioned at the connection plug inner chamber, connect structure A and is connected with conduit tube component, connect the back segment that structure B is positioned at the connection plug inner chamber, connection plug construct B by this connection and handle affixed.
Stop structure and being comprised of four triangle tongue pieces along the circumference continuous distribution, these four tongue pieces close up tapered, and pointed cone backwards.
Be comprised of two tongue pieces in prior art, tongue piece closes up that rear one-tenth wedge is pointed, and the wedge point is into a line, easily has the gap to allow the needle tip ease escape.Four tongue pieces of the present utility model close up rear cone point and become point-like, and no matter needle point returns from any orientation that when wearing, needle point is guided by taper surface, more reliable deflection bottom, and needle point more can not pass connection plug like this, and the assurance needle point can not pass hurts sb.'s feelings.
Connecting structure A is comprised of draw-in groove, protuberant point and nested circular groove, connection plug leading section indent one ring circular groove is also nested with the seam of conduit tube component rearward end in stretching into this circular groove as nested circular groove, between this nested circular groove and connection plug periphery wall from axial indent one blind slot of connection plug external end head, this blind slot is draw-in groove, blind slot both sides emergence protuberant point, conduit tube component tail end the head corresponding buckle that arranges of this draw-in groove relatively push through this protuberant point and this draw-in groove snapping.
Have certain elasticity medical plastic because connection plug adopts, can have certain elasticity opening degree between two salient points.When conduit tube component separates with connection plug, buckle pushes through two salient points on draw-in groove, salient point is backed out by elastic properties of materials, the conduit tube component buckle is deviate from draw-in groove, conduit tube component and connection plug in the remaining needle operating process, have guaranteed snapping reliability between the two like this, pulling-out force concordance when having guaranteed again that conduit tube component separates with connection plug, reduce simultaneously the accessory manufacture difficulty, improved yield rate.
Further be optimized for:
This connects structure A and has two, and is along the circumferential direction uniform.
In sum, this utility model has following advantage compared to existing technology: axial space is compact, and handle is shortened; Reliable with the conduit tube component snapping, degree of tightness is appropriate, conveniently detaches, and easily guarantees during large-scale production each part pulling-out force concordance to have reduced simultaneously the accessory manufacture difficulty, has improved yield rate.
Description of drawings
Fig. 1 is a kind of flexible protection containing needle structure schematic diagram in prior art;
Fig. 2 is the structural representation that uses a kind of flexible protection remaining needle of connection plug described in the utility model;
Fig. 3 is the structural representation that uses the flexible protection remaining needle of the described connection plug of this utility model most preferred embodiment;
Fig. 4 is the structural representation front view of the described connection plug of this utility model most preferred embodiment;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is the structural representation axonometric chart of the described connection plug of this utility model most preferred embodiment;
Label declaration:
1 conduit tube component 2 puncture needle tubing assembly 3 telescopic protective cover 4 connection plugs
41 stop structure 42 and connecting structure A 421 draw-in groove 422 protuberant points
423 nested circular grooves 43 connect structure B
The specific embodiment
Most preferred embodiment:
With reference to Fig. 3, Fig. 4, Fig. 5 and Fig. 6; the connection plug assembly of flexible protection remaining needle; comprise connection plug 4 and stop and structure 41; connection plug 4 and stop the SMIS that structure 41 and have the cavity that contains dress puncture needle tubing; connection plug 4 rear ends and handle are affixed, but connection plug 4 front ends are connected in the plug mode with conduit tube component 1.Stop structure 41 and being arranged in connection plug 4 inner chambers, this stops on connection plug 4 peripheral surface in the axial length that structure 41 and is provided with a kind of connection structure A42, and this connects structure A42 and is connected with conduit tube component 1.Stopping and the leading portion that structure 41 is positioned at connection plug 4 inner chambers, connect the back segment that structure B43 is positioned at connection plug 4 inner chambers, is a kind of circular hole, and connection plug 4 is connected and puts glue and fix by the corresponding part plant of telescopic protective cover in this circular hole and handle.Handle is comprised of puncture needle tubing assembly 2 and telescopic protective cover 3, and shown in the present embodiment is a kind of multi-joint telescoping protective sleeve.Stop structure 41 and being comprised of four triangle tongue pieces along the circumference continuous distribution, these four tongue pieces close up tapered, and pointed cone backwards.Connecting structure A42 is comprised of draw-in groove 421, protuberant point 422 and nested circular groove 423, connection plug 4 leading section indents one ring circular grooves are also nested with the seam of conduit tube component rearward end in stretching into this circular groove as nested circular groove 423, between this nested circular groove 423 and connection plug 4 periphery walls outside connection plug the 4 shaft pertainings blind slot that concaves, this blind slot is draw-in groove 421, blind slot both sides emergence protuberant point 422, conduit tube component 1 tail end the head corresponding buckle that arranges of this draw-in groove 421 relatively push through this protuberant point 422 and these draw-in groove 421 snappings.
With reference to Fig. 2, shown in figure is the flexible protection remaining needle that uses another kind of connection plug.Connection plug 4 shown in this Fig is with above-mentioned connection plug 4 differences: do not arrange and be connected structure B, connection plug 4 directly and the handle Construction integration.
It is same as the prior art that the present embodiment is not stated part.
Claims (6)
1. the connection plug assembly of flexible protection remaining needle; comprise connection plug and stop and structure; connection plug and stop the SMIS that structure and have the cavity that contains dress puncture needle tubing; affixed or the Construction integration of connection plug rear end and handle; but the connection plug front end is connected in the plug mode with conduit tube component; it is characterized in that; stop and structure installation in the connection plug inner chamber; be provided with a kind of connection structure A on the connection plug peripheral surface; this connects structure A or is connected with conduit tube component or is connected with handle; in the axial direction, this stop structure be connected with this structure A have overlapping paragraph.
2. the connection plug assembly of flexible protection remaining needle according to claim 1, is characterized in that, stops the leading portion that structure is positioned at the connection plug inner chamber, connects structure A and be connected with conduit tube component.
3. the connection plug assembly of flexible protection remaining needle according to claim 1; it is characterized in that, stop and the leading portion that structure is positioned at the connection plug inner chamber, connect structure A and be connected with conduit tube component; connect the back segment that structure B is positioned at the connection plug inner chamber, connection plug is affixed by this connection structure B and handle.
4. the connection plug assembly of according to claim 1 and 2 or 3 described flexible protection remaining needles, is characterized in that, stops structure and being comprised of four triangle tongue pieces along the circumference continuous distribution, and these four tongue pieces close up tapered, and pointed cone backwards.
5. the connection plug assembly of according to claim 1 and 2 or 3 described flexible protection remaining needles; it is characterized in that; connecting structure A is comprised of draw-in groove, protuberant point and nested circular groove; connection plug leading section indent one ring circular groove is also nested with the seam of conduit tube component rearward end in stretching into this circular groove as nested circular groove; between this nested circular groove and connection plug periphery wall from axial indent one blind slot of connection plug external end head; this blind slot is draw-in groove; blind slot both sides emergence protuberant point, conduit tube component tail end the head corresponding buckle that arranges of this draw-in groove relatively push through this protuberant point and this draw-in groove snapping.
6. the connection plug assembly of flexible protection remaining needle according to claim 5, is characterized in that, this connects structure A and has two, and is along the circumferential direction uniform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320190302 CN203263934U (en) | 2013-04-16 | 2013-04-16 | Connection plug assembly of telescopic protective type indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320190302 CN203263934U (en) | 2013-04-16 | 2013-04-16 | Connection plug assembly of telescopic protective type indwelling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203263934U true CN203263934U (en) | 2013-11-06 |
Family
ID=49494437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320190302 Expired - Lifetime CN203263934U (en) | 2013-04-16 | 2013-04-16 | Connection plug assembly of telescopic protective type indwelling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203263934U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014169427A1 (en) * | 2013-04-16 | 2014-10-23 | 福建省百仕韦医用高分子股份有限公司 | Connecting plug component of telescoping protected indwelling needle |
| CN104707208A (en) * | 2015-01-29 | 2015-06-17 | 福建省百仕韦医用高分子股份有限公司 | Remaining needle with unilateral-seam protective sleeve |
| CN109011003A (en) * | 2018-06-04 | 2018-12-18 | 哈尔滨医科大学 | Remaining needle safety foldable retraction type needle guard |
-
2013
- 2013-04-16 CN CN 201320190302 patent/CN203263934U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014169427A1 (en) * | 2013-04-16 | 2014-10-23 | 福建省百仕韦医用高分子股份有限公司 | Connecting plug component of telescoping protected indwelling needle |
| CN104707208A (en) * | 2015-01-29 | 2015-06-17 | 福建省百仕韦医用高分子股份有限公司 | Remaining needle with unilateral-seam protective sleeve |
| CN109011003A (en) * | 2018-06-04 | 2018-12-18 | 哈尔滨医科大学 | Remaining needle safety foldable retraction type needle guard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |