CN203043151U - Safe indwelling needle and elastic lock catch - Google Patents
Safe indwelling needle and elastic lock catch Download PDFInfo
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- CN203043151U CN203043151U CN 201320005302 CN201320005302U CN203043151U CN 203043151 U CN203043151 U CN 203043151U CN 201320005302 CN201320005302 CN 201320005302 CN 201320005302 U CN201320005302 U CN 201320005302U CN 203043151 U CN203043151 U CN 203043151U
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- puncture needle
- elastic lock
- assembly
- housing
- interface
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Abstract
The utility model discloses a safe indwelling needle and an elastic lock catch, wherein the safe indwelling needle and the elastic lock catch are used for preventing medical workers from being punctured by a puncture needle. The safe indwelling needle comprises an indwelling catheter component 1, a puncture needle component 2 and the elastic lock catch 3, wherein the indwelling catheter component 1 enters a blood vessel, and the puncture needle component 2 can be drawn out from the indwelling catheter component 1. After the puncture needle component 2 is drawn out, the puncture needle component 2 is contained inside the elastic lock catch 3 and drops out of an elastic slice 33, and the elastic slice 33 prevents a puncture needle 21 from passing reversely. The puncture needle component 2 is prevented from being separated with the elastic lock catch 3 through a through hole 32, the elastic lock catch 3 is separated from the indwelling catheter component 1, the puncture needle component 2 can be abandoned together with the elastic lock catch 3, accordingly the medical workers are prevented from being punctured by the puncture needle, and convenience is brought to use by the medical workers due to the fact that the size, relative to the size of a full protection shell in the prior art, of the elastic lock catch 3 is small.
Description
Technical field
This utility model relates to the disposable medical instrument field, relates in particular to a kind of safe type retention needle and elastic lock.
Background technology
Remaining needle is a kind of for the medical apparatus and instruments that repeatedly carries out infusion treatment within a certain period of time, generally comprises puncture needle and the inlying catheter that is enclosed within above the puncture needle.Because inlying catheter is soft and flexible, when catheter retaining was in blood vessel, conduit can be tortuous synchronously along with blood vessel, makes the position of catheter retaining still can freely move, and do not have the danger of puncture vein.Therefore, common relatively scalp acupuncture uses the remaining needle transfusion to have more safety, and the sense of discomfort when reducing the patient and infusing.
After the use of remaining needle had also brought retained needle puncture simultaneously, the danger of stabbing medical personnel that the needle point that comes out can meet accident in this case, just made medical personnel be easy to be subjected to the infection of the pathogen of the various danger that blood carries.The danger that medical personnel can be subjected to unexpected acupuncture has impelled the exploitation of safe type retention needle, and the use of this safe type retention needle can prevent described accidental acupuncture.
But safe type retention needle of the prior art has shortcoming more or less, thereby has limited their serviceability, can not be approved fully by medical personnel.For example application number is to disclose a kind of retained needle puncture needle point screening arrangement in 03814386.0 the Chinese utility model patent, and this device only can shield needle point, can not shield the side opening of water conservancy diversion blood on the needle tubing, and whole device relative complex.Application number is in 03141566.0 the Chinese utility model patent in disclosed a kind of safe type retention needle; with the puncture after the puncture needle components containing in the safeguard protection shell of a tubulose; its safeguard protection valve jacket is on catheter block, and containment vessel length is bigger, makes troubles to medical personnel's operation.
The utility model content
This utility model embodiment provides a kind of safe type retention needle and elastic lock, is used for avoiding medical personnel to be threaded a needle and stabs.
A kind of safe type retention needle that this utility model embodiment provides specifically comprises:
Inlying catheter assembly 1, puncture needle assembly 2 and elastic lock 3;
The puncture needle assembly is connected with inlying catheter assembly 1;
Offer through hole 32 on the housing 31 far-end shell walls;
The near-end of housing 31 inside arranges shell fragment 33;
When puncture needle assembly 2 detached shell fragment 33, shell fragment 33 flicked, and stoped puncture needle assembly 2 to return;
Through hole 32 can stop puncture needle assembly 2 to break away from elastic lock 3.
Optionally,
Inlying catheter assembly 1 comprises:
Prolong an end jointing 16 of pipe 14, the other end and 123 sockets of the 3rd interface;
Optionally,
The afterbody of puncture needle 21 is fixed on the Paracentesis needle holder 22.
Optionally,
Housing 35 is the cannulated housing;
Offer through hole 32 on the housing 31 far-end shell walls;
The near-end of housing 31 inside arranges shell fragment 33.
As can be seen from the above technical solutions; this utility model embodiment has the following advantages: prior art be with the puncture after the puncture needle components containing in the safeguard protection shell of a tubulose; this safeguard protection valve jacket is on catheter block; because containment vessel length is bigger, make troubles to medical personnel's operation.A kind of safe type retention needle that this utility model provides comprises inlying catheter assembly 1, puncture needle assembly 2 and elastic lock 3; Inlying catheter assembly 1 intravasation, puncture needle assembly 2 can be extracted out from inlying catheter assembly 1.After puncture needle assembly 2 was extracted out, puncture needle assembly 2 was contained in the inside of elastic lock 3, continued to extract puncture needle assembly 2 out, and puncture needle assembly 2 withdraws from shell fragment 33, and shell fragment 33 is subjected to elastic force, blocks housing 31 cavity lane, stoped puncture needle 21 oppositely to pass through.Through hole 32 can prevent that puncture needle assembly 2 breaks away from elastic lock 3.Continue to extract out puncture needle assembly 2; elastic lock 3 breaks away from inlying catheter assembly 1; puncture needle assembly 2 related elastic locks 3 together can be abandoned; thereby avoid medical personnel to be threaded a needle stabbing; because the volume of elastic lock 3 volumes all risk insurance protective case of the prior art relatively is little, so the medical worker is more convenient to use.
Description of drawings
The structural representation of an embodiment of a kind of safe type retention needle that Fig. 1 provides for this utility model embodiment;
The structural representation of another embodiment of a kind of safe type retention needle that Fig. 2 provides for this utility model embodiment;
An example structure sketch map of a kind of elastic lock that Fig. 3 provides for this utility model embodiment;
The specific embodiment
This utility model embodiment provides a kind of safe type retention needle and elastic lock, is used for avoiding medical personnel to be threaded a needle and stabs.
See also Fig. 1, an embodiment of a kind of safe type retention needle that this utility model embodiment provides specifically comprises:
Inlying catheter assembly 1, puncture needle assembly 2 and elastic lock 3;
The puncture needle assembly is connected with inlying catheter assembly 1;
Offer through hole 32 on the housing 31 far-end shell walls;
The near-end of housing 31 inside arranges shell fragment 33;
When puncture needle assembly 2 detached shell fragment 33, shell fragment 33 flicked, and stoped puncture needle assembly 2 to return;
Through hole 32 can stop puncture needle assembly 2 to break away from elastic lock 3.
In the present embodiment, safe type retention needle comprises inlying catheter assembly 1, puncture needle assembly 2, elastic lock 3;
In the present embodiment, inlying catheter assembly 1 intravasation, puncture needle assembly 2 can be extracted out from inlying catheter assembly 1.After puncture needle assembly 2 was extracted out, puncture needle assembly 2 was contained in the inside of elastic lock 3, continued to extract puncture needle assembly 2 out, and puncture needle assembly 2 withdraws from shell fragment 33, and shell fragment 33 is subjected to elastic force, blocks housing 31 cavity lane, stoped puncture needle 21 oppositely to pass through.Through hole 32 can prevent that puncture needle assembly 2 breaks away from elastic lock 3.
In the present embodiment, inlying catheter assembly 1 intravasation, puncture needle assembly 2 can be extracted out from inlying catheter assembly 1.After puncture needle assembly 2 was extracted out, puncture needle assembly 2 was contained in the inside of elastic lock 3, continued to extract puncture needle assembly 2 out, and puncture needle assembly 2 withdraws from shell fragment 33, and shell fragment 33 is subjected to elastic force, blocks housing 31 cavity lane, stoped puncture needle 21 oppositely to pass through.Through hole 32 can prevent that puncture needle assembly 2 breaks away from elastic lock 3.Continue to extract out puncture needle assembly 2; elastic lock 3 breaks away from inlying catheter assembly 1; puncture needle assembly 2 related elastic locks 3 together can be abandoned; thereby avoid medical personnel to be threaded a needle stabbing; because the volume of elastic lock 3 volumes all risk insurance protective case of the prior art relatively is little, so the medical worker is more convenient to use.
See also Fig. 2, an embodiment of a kind of safe type retention needle that this utility model embodiment provides further comprises:
Inlying catheter assembly 1 comprises:
Puncture needle 21 passes elastic lock 3, stretches out in outside second interface 122 of catheter block 12;
Prolong an end jointing 16 of pipe 14, the other end and 123 sockets of the 3rd interface;
Optionally,
Puncture needle assembly 2 comprises:
Puncture needle 21, Paracentesis needle holder 22;
The afterbody of puncture needle 21 is fixed on the Paracentesis needle holder 22.
In the present embodiment, those skilled in the art can think that inlying catheter assembly 1 and puncture needle assembly 2 are prior art, and its structure is common practise.
Need to prove that behind conduit 11 intravasations, puncture needle assembly 2 can be extracted out from inlying catheter assembly 1.Then, the needle point that is drawn to puncture needle 21 when puncture needle assembly 2 is accommodated in the inside of elastic lock 3, and projection 211 is in housing 31 inside, continue to extract out puncture needle assembly 2, puncture needle 21 all withdraws from shell fragment 33, shell fragment 33 is subjected to elastic force, blocks housing 31 cavity lane, stops puncture needle 21 oppositely to pass through.Continue to detach puncture needle 21, through hole 32 contact projections 211, because projection 211 can not so it is mobile together with puncture needle 21 to drive housing 31, cause elastic lock 3 and inlying catheter assembly 1 to break away from by copper button 32, puncture needle assembly 2 realizes that safety abandons.
In the present embodiment, behind conduit 11 intravasations, puncture needle assembly 2 can be extracted out from inlying catheter assembly 1.Then, the needle point that is drawn to puncture needle 21 when puncture needle assembly 2 is accommodated in the inside of elastic lock 3, and projection 211 is in housing 31 inside, continue to extract out puncture needle assembly 2, puncture needle 21 all withdraws from shell fragment 33, shell fragment 33 is subjected to elastic force, blocks housing 31 cavity lane, stops puncture needle 21 oppositely to pass through.Continue to detach puncture needle 21, through hole 32 contact projections 211, because projection 211 can not so it is mobile together with puncture needle 21 to drive housing 31, cause elastic lock 3 and inlying catheter assembly 1 to break away from by copper button 32, puncture needle assembly 2 realizes that safety abandons.Thereby avoid medical personnel to be threaded a needle stabbing, because the volume of elastic lock 3 volumes all risk insurance protective case of the prior art relatively is little, so the medical worker is more convenient to use.
An embodiment of a kind of safe type retention needle that this utility model embodiment is provided is described above, and an embodiment of a kind of elastic lock that this utility model embodiment is provided is described below.
See also Fig. 3, an embodiment of a kind of elastic lock that this utility model embodiment provides specifically comprises:
Offer through hole 32 on the housing 31 far-end shell walls;
The near-end of housing 31 inside arranges shell fragment 33;
Puncture needle assembly 2 runs through through hole 32;
Puncture needle assembly 2 compression shell fragments 33;
When puncture needle assembly 2 detached shell fragment 33, shell fragment 33 flicked, and stoped puncture needle assembly 2 to return;
Through hole 32 can stop puncture needle assembly 2 to break away from elastic lock 3.
In the present embodiment, inlying catheter assembly 1 intravasation, puncture needle assembly 2 can be extracted out from inlying catheter assembly 1.After puncture needle assembly 2 was extracted out, puncture needle assembly 2 was contained in the inside of elastic lock 3, continued to extract puncture needle assembly 2 out, and puncture needle assembly 2 withdraws from shell fragment 33, and shell fragment 33 is subjected to elastic force, blocks housing 31 cavity lane, stoped puncture needle 21 oppositely to pass through.Through hole 32 can prevent that puncture needle assembly 2 breaks away from elastic lock 3.
In the present embodiment, inlying catheter assembly 1 intravasation, puncture needle assembly 2 can be extracted out from inlying catheter assembly 1.After puncture needle assembly 2 was extracted out, puncture needle assembly 2 was contained in the inside of elastic lock 3, continued to extract puncture needle assembly 2 out, and puncture needle assembly 2 withdraws from shell fragment 33, and shell fragment 33 is subjected to elastic force, blocks housing 31 cavity lane, stoped puncture needle 21 oppositely to pass through.Through hole 32 can prevent that puncture needle assembly 2 breaks away from elastic lock 3.Continue to extract out puncture needle assembly 2; elastic lock 3 breaks away from inlying catheter assembly 1; puncture needle assembly 2 related elastic locks 3 together can be abandoned; thereby avoid medical personnel to be threaded a needle stabbing; because the volume of elastic lock 3 volumes all risk insurance protective case of the prior art relatively is little, so the medical worker is more convenient to use.
The above, above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to previous embodiment this utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of this utility model.
Claims (4)
1. a safe type retention needle is characterized in that, comprising:
Inlying catheter assembly (1), puncture needle assembly (2) and elastic lock (3);
Described elastic lock (3) places the cavity inside of described inlying catheter assembly (1);
Described puncture needle assembly (2) run through described inlying catheter assembly (1) and elastic lock (3) and within it portion be free to slide;
Described elastic lock (3) comprising:
Housing (31), through hole (32) and shell fragment (33);
Described housing (31) is the cannulated housing;
Offer through hole (32) on described housing (31) the far-end shell wall;
The inner near-end of described housing (31) arranges shell fragment (33);
Described puncture needle assembly (2) runs through described through hole (32);
Described puncture needle assembly (2) compresses described shell fragment (33);
When described puncture needle assembly (2) detached described shell fragment (33), described shell fragment (33) flicked, and stoped described puncture needle assembly (2) to return;
Described through hole (32) can stop described puncture needle assembly (2) to break away from described elastic lock (3).
2. safe type retention needle according to claim 1 is characterized in that,
Described inlying catheter assembly (1) comprising:
Conduit (11), catheter block (12), batching pig (13), prolongation pipe (14), pipe clamp (15) and joint (16);
Described catheter block (12) comprising:
First interface (121), second interface (122) and the 3rd interface (123);
Described elastic lock (3) places in described first interface (121);
Described first interface (121) axially connects built-in puncture needle assembly (1) with described second interface (122);
Described puncture needle (21) passes described elastic lock (3), stretches out in outside second interface (122) of catheter block (12);
One end of described prolongation pipe (14) connects described joint (16), the other end and described the 3rd interface (123) socket;
Described pipe clamp (15) is enclosed within on the described prolongation pipe (14);
Described conduit (11) is socketed on described second interface (122), and is sleeved on the described puncture needle (21).
3. safe type retention needle according to claim 2 is characterized in that,
Described puncture needle assembly (2) comprising:
Puncture needle (21), Paracentesis needle holder (22);
The afterbody of described puncture needle (21) is fixed on the described Paracentesis needle holder (22).
4. an elastic lock is characterized in that, comprising:
Housing (31), through hole (32) and shell fragment (33);
Described housing (35) is the cannulated housing;
Offer through hole (32) on described housing (31) the far-end shell wall;
The inner near-end of described housing (31) arranges shell fragment (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320005302 CN203043151U (en) | 2013-01-05 | 2013-01-05 | Safe indwelling needle and elastic lock catch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320005302 CN203043151U (en) | 2013-01-05 | 2013-01-05 | Safe indwelling needle and elastic lock catch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203043151U true CN203043151U (en) | 2013-07-10 |
Family
ID=48726157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320005302 Expired - Lifetime CN203043151U (en) | 2013-01-05 | 2013-01-05 | Safe indwelling needle and elastic lock catch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203043151U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106267449A (en) * | 2015-05-14 | 2017-01-04 | 广东龙心医疗器械有限公司 | Single use preventing thrombosis remaining needle |
-
2013
- 2013-01-05 CN CN 201320005302 patent/CN203043151U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106267449A (en) * | 2015-05-14 | 2017-01-04 | 广东龙心医疗器械有限公司 | Single use preventing thrombosis remaining needle |
| CN106267449B (en) * | 2015-05-14 | 2020-03-17 | 广东龙心医疗器械有限公司 | Disposable anti-thrombus indwelling needle |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |
|
| CX01 | Expiry of patent term |