CN106474593A - A kind of needle automatic retracting formula safe intravenous infusion needle - Google Patents
A kind of needle automatic retracting formula safe intravenous infusion needle Download PDFInfo
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- CN106474593A CN106474593A CN201510533276.0A CN201510533276A CN106474593A CN 106474593 A CN106474593 A CN 106474593A CN 201510533276 A CN201510533276 A CN 201510533276A CN 106474593 A CN106474593 A CN 106474593A
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- needle
- housing
- hub body
- intravenous infusion
- strip
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Abstract
The present invention is a kind of needle automatic retracting formula safe intravenous infusion needle, the syringe needle installation portion that its feature includes needle hub body and is located at needle hub body front end；Needle hub body both sides are provided with slide block and extend, by outside slide block forward end, the Flexible Connector being formed；The front end of Flexible Connector is provided with the needle stand locking device that engage horizontal and vertical with housing and hand-held unblock operating portion；Needle hub body front end is provided with spring mountings, and rear end is provided with the pipe connection portion being connected with tube for transfusion；Being provided with described pipe connection portion prevents the relief valve of liquid reflux.Housing is in a strip quad flat body structure；Housing is combined by upper shell and lower house and is formed；Housing both sides are provided with strip opening, chute and the snap-in structure corresponding with needle stand locking device；Hand-held unblock operating position and can move axially along opening in strip opening.Rationally, function and purposes are various, simple to operation for present configuration.This product provides safeguard protection not only to medical worker and patient simultaneously, also can avoid environmental pollution and possible secondary injury, realize safety and environmental protection.
Description
Technical field
The present invention relates to the technical field of medical apparatus and instruments, specifically a kind of needle automatic retracting formula safe intravenous infusion needle.
Background technology
Vein blood taking needle and venoclysis needle are that medical institutions are the most frequently used, using most common medical disposable material.Traditional vein blood taking needle and transfusion needle more adopt single-blade or double fins needle stand structure, this kind of needle stand structure in-convenience in use, using rear syringe needle expose outside it is easy to cause accidental needle sticks wound and environmental pollution.Pricking wound and the cross infection thereby resulting in are safety and health problems of the numerous medical workers of long-standing problem；Using rear contaminated syringe needle exposed outside it is easy to cause secondary injury and cross infection.
In order to solve upper problem, research staff is updating and is researching and developing the safety protection structure of New intravenous blood taking needle and venoclysis needle always.Existing available safe vein blood taking needle and safe intravenous infusion needle kind are few, in-convenience in use and expensive, most product structures and function are all further improved with the purpose reaching effective security protection and popularization uses.
Content of the invention
It is an object of the invention to provide a kind of needle automatic retracting formula safe intravenous infusion needle, its main feature includes：1）Product design is designed with long strip type flat structure, and small volume is easy to use.Housing adopts the big advantage of flat appearance structure at least two：One is to facilitate that medical worker is hand-held to be operated with, two be convenient transfusion needle is smoothly fixed on patient's the back of the hand, this design replaces the single-blade of traditional vein blood taking needle and transfusion needle or double fins as the fixing function of hand-held and syringe needle；2）Syringe needle installation portion is connected using eccentric dislocation with needle hub body, and this kind of structure can make needle tubing closer to patient's body skin, to patient's more safety and comfortable sensation；3）Using the two-way snap lock in housing both sides and Bidirectional unlocking operation, increase stability and the safety of needle stand locking, improve convenience and the comfort of user operation；After infusion terminates, needle stand is unlocked by the hand-held unblock operating portion of pressing housing both sides, and needle stand and needle tubing can be automatically retracted in housing by spring, and medical worker can be prevented to be hindered by accidental needle sticks and lead to cross infection；4）It is provided with the relief valve preventing liquid reflux in needle hub body, with preventing unexpected liquid reflux occurs in infusion process, patient is damaged；5）Product structure is ingenious, reasonable, applied range, both can be used for venous transfusion, blood transfusion can be used for venous blood collection, suitable penetration and promotion.
To achieve these goals, the technical scheme is that：A kind of needle automatic retracting formula safe intravenous infusion needle, it include housing and be located at housing in needle stand it is characterised in that：The syringe needle installation portion that described needle stand includes needle hub body and is located at needle hub body front end；Described needle hub body both sides are each provided with a slide block, and described slide block forms a Flexible Connector with being connected outside needle hub body and extending along outside the forward end of syringe needle installation portion axle center；The front end of described Flexible Connector is provided with the needle stand locking device that engage horizontal and vertical with housing, and the outside of this needle stand locking device is provided with the hand-held unblock operating portion for engagement release；Form spring mountings with syringe needle installation portion outer wall between two-side elastic connector, needle hub body rear portion forms a pipe connection portion, this pipe connection portion is used for being connected with tube for transfusion；
Described housing is in a strip quad flat body structure；Housing is combined by upper shell and lower house and is formed；Upper shell both sides obverse with lower house offer the upper hopper chute matching with needle stand locking device；The both sides in lower house face corresponding with upper shell offer the gliding groove matching with needle stand locking device；Casing center is provided with the strip cavity matching with needle hub body；The front end of this strip cavity is provided with the perforate matching with syringe needle installation portion, and the rear end of this strip cavity is provided with the opening being in communication with the outside；The both sides of this strip cavity are cooperatively formed the strip opening being in communication with the outside by upper-lower casing, and described strip opening is connected with strip cavity；In described strip opening, this hand-held unblock operating portion can slide axially in strip opening for above-mentioned hand-held unblock operating position；
It is provided with a spring at described spring mountings.
The invention discloses a kind of needle automatic retracting formula safe intravenous infusion needle, its various other 26S Proteasome Structure and Function being mainly characterized by housing design growth bar shaped quad flat body structure and thus extending.Transfusion needle is stablized comfortable being fixed on patient's body skin during convenient infusion by this kind of contour structures both convenient use person's hand-held use when injection punctures again；Using the chute of housing both sides and the slide block of needle stand both sides and locking device, realize two-way snap lock, unblock and the slip of housing both sides between housing and needle stand, greatly improve the stability of product and the convenience of safety and use and comfort；.After infused, the hand-held unblock operating portion of pressing housing both sides, release the locking between needle stand and housing, the spring of needle stand front end can bounce back to needle stand and needle tubing in the elongated cavity of housing rapidly；When needle stand bounces back to the afterbody of housing elongated cavity, the locking device of needle stand can engage and realize backward hold with the depressed part of housing both sides chute afterbody, can effectively prevent syringe needle from exposing or syringe needle is released outside housing again and caused the risk of unexpected injury.Due to design is connected with the eccentric dislocation between needle hub body using syringe needle installation portion; injection needle can be made more to press close to the body skin of patient to avoid needle sting blood vessel, improve the safeguard protection to patient and comfort, therefore; this product can be not only used for venous transfusion, can be used for venous transfusion and blood sampling again.This product is provided with the relief valve of liquidproof reflux in needle hub body portion, and this relief valve is ingenious with needle safety defencive function, be organically integrated, and is greatly improved the dual security protection function to numerous medical workers and patient.
Brief description
Fig. 1 is the internal structure schematic diagram of the present invention.
Fig. 2 is the side view of the present invention.
Fig. 3 is external structure schematic diagram of the present invention.
Fig. 4 is the final use state figure of the present invention.
Fig. 5 is the relief valve assembling structure schematic diagram in needle stand.
Fig. 6 is needle stand structure schematic diagram.
Fig. 7 is needle stand side view.
Fig. 8 is needle stand end construction schematic diagram.
Fig. 9 is upper shell external structure schematic diagram.
Figure 10 is upper shell internal structure schematic diagram.
Figure 11 is upper casing body-side view.
Figure 12 is lower house external structure schematic diagram.
Figure 13 is lower house internal structure schematic diagram.
Figure 14 is lower casing body-side view.
In figure includes：
1st, housing；
2nd, needle stand；
3rd, needle hub body；
4th, syringe needle installation portion；
5th, slide block
6th, Flexible Connector；
7th, needle stand locking device；
8th, hand-held unblock operating portion；
9th, spring mountings；
10th, pipe connection portion；
11st, tube for transfusion；
12nd, upper shell；
13rd, lower house；
14th, upper hopper chute；
15th, gliding groove；
16th, strip cavity；
17th, perforate；
18th, opening；
19th, strip opening；
20th, spring；
21st, upper protruding block；
22nd, lower protruding block；
23rd, longitudinal projection；
24th, dislocation connects；
25th, reinforcement；
26th, relief valve;
27th, convex tendon;
28th, conical plug cavity;
29th, circular step;
30th, conical plug;
31st, guide chute wall;
32nd, horizontal cut;
33rd, longitudinal breach;
34th, breach;
35th, depressed part.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
A kind of needle automatic retracting formula safe intravenous infusion needle, it includes housing 1 and the needle stand 2 being located in housing, and it is different from prior art and is：The syringe needle installation portion 4 that described needle stand includes needle hub body 3 and is located at needle hub body front end；This syringe needle installation portion is used for assembling needle tubing；Above-mentioned needle hub body both sides are each provided with a slide block 5, and described slide block forms a Flexible Connector 6 with being connected outside needle hub body and extending along outside the forward end of syringe needle installation portion axle center；The front end of this Flexible Connector is provided with the needle stand locking device 7 that engage horizontal and vertical with housing, and the outside of this needle stand locking device is provided with the hand-held unblock operating portion 8 for engagement release；Form spring mountings 9 with syringe needle installation portion outer wall between two-side elastic connector, this spring mountings 9 is used for being socketed and fixes spring；Needle hub body rear portion forms a pipe connection portion 10, and this pipe connection portion is used for being connected with tube for transfusion 11；
Described housing is in a strip quad flat body structure, and this kind of structure had not only facilitated operator's hand-held when puncturing to contribute to stability and the comfort that increase needle stand is fixed on patient skin surface again；Housing is combined and is formed by upper shell 12 and lower house 13, in this product when time selecting scheme, housing is assembled before and after also can having front end shell and rear end housing；Upper shell both sides obverse with lower house offer the upper hopper chute 14 matching with needle stand locking device；The both sides in lower house face corresponding with upper shell offer the gliding groove 15 matching with needle stand locking device；Casing center is provided with the strip cavity 16 matching with needle hub body；The upper wall of this strip cavity and lower wall form the arc surface coordinating with needle hub body outer wall, and the front end of this strip cavity is provided with the perforate 17 matching with syringe needle installation portion, and the aperture of described perforate is coordinated with syringe needle installation portion crest clearance；The rear end of this strip cavity is provided with the opening 18 being in communication with the outside；This opening is the assembly connection passage of tube for transfusion and pipe connection portion；The both sides of this strip cavity are cooperatively formed the strip opening 19 being in communication with the outside by upper-lower casing, and described strip opening is connected with strip cavity；In described strip opening, this hand-held unblock operating portion slides axially in strip opening for the hand-held unblock operating position of above-mentioned needle stand；
It is provided with a spring 20 at described spring mountings.
In the specific implementation, described needle stand locking device includes a upper protruding block 21 matching with upper hopper chute and a lower protruding block 22 matching with gliding groove；Upper protruding block top is additionally provided with longitudinal projection 23 of one and the in perpendicular shape connection of upper protruding block, and the upper lower protruding block of symmetrical distribution helps and lifts guide effect with the stability and needle hub body of housing snap lock in sliding process for the needle stand.
In the specific implementation; described syringe needle installation portion with needle hub body inner space and syringe needle installation portion axle center be partial to needle hub body axle center side formed dislocation be connected 24; needle tubing is enabled to closer to patient's body skin using dislocation connection; reduce needle tubing to greatest extent to be connected formation oblique angle with needle hub body and patient vessel may be caused with accidental injury, improve the safety protection function to patient and comfort.
In the specific implementation, the spring installation place of described syringe needle installation portion outer wall is provided with the reinforcement 25 of axially distribution, the outer wall of spring overcoat and reinforcement described in syringe needle installation portion during installation, and the external diameter that this reinforcement is formed is matched with spring inside diameter.
In the specific implementation, described needle hub body pipe connection portion inner chamber leading portion is provided with a relief valve 26 preventing liquid reflux.Described relief valve includes being arranged on ring-shaped distributed convex tendon 27 and the conical plug cavity 28 inside annular distribution convex tendon at needle hub body pipe connection portion inner chamber leading portion inwall;One end of annular distribution convex tendon forms a circular step 29；Tube for transfusion one end is assemblied in pipe connection portion and is connected with above-mentioned circular step；It is provided with a conical plug 30 in described conical plug cavity；The cone tip part external diameter of this conical plug is less than the internal diameter of tube for transfusion and points at tube for transfusion one end open；In infusion process, when liquid reflux, the cone tip part of the conical plug being suspended in relief valve conical plug cavity will be pushed at transfusion tube opening and closed conduct opening by the liquid of reflux, can effectively stop liquid reflux, increase the safeguard protection to patient.
In the specific implementation, the upper hopper chute front end external groove sidevall setting one of described upper shell both sides is inside to roll oblique guiding chute wall 31, the front end of described guiding chute wall arranges a horizontal cut 32, in guiding chute wall front end at bottom land, open up the longitudinal breach 33 that connect in perpendicular shape with horizontal cut；
In the specific implementation, offer a breach 34 at the bottom land of described upper hopper chute front end, this breach is connected with above-mentioned horizontal cut and longitudinal breach；Above-mentioned horizontal cut and longitudinal breach and longitudinal projection cooperation of needle stand upper protruding block and top, form horizontal and vertical snap lock.
In the specific implementation, described upper shell is equipped with the depressed part 35 connecting with upper hopper chute and gliding groove with the lateral wall of lower house runner rear end, when needle stand by spring retraction to strip tail of cavity body when, this depressed part is coordinated with the upper protruding block of above-mentioned needle stand locking device and lower protruding block, form reverse snap lock, to prevent needle stand and needle tubing from being released again outside housing
In the specific implementation, described housing forward end outer wall narrows to inner side；When hand-held unblock operating position is in housing forward end, hand-held unblock operating portion is exposed to outside above-mentioned strip opening, operator presses hand-held unblock operating portion to inner side, needle stand and realize unblock with housing, and needle stand can be retracted to the afterbody of strip cavity by spring automatically that be installed on needle stand front end；When needle stand is located at housing rear end, hand-held portion is then located in described strip opening, increases, to prevent from touching, the risk that syringe needle is surprisingly released housing.
In original state, needle stand is installed in housing forward end and realizes the stable snap lock with housing by needle stand locking device this product；Needle tubing and needle tubing overcoat are exposed to housing forward end；Hand-held unblock operating portion road is for housing forward end both sides；The hand-holdable housing of operator is punctured and using housing, transfusion needle is fixed on patient's body skin；After transfusion or blood sampling terminate, operator can singlehanded pressing housing forward end both sides hand-held unblock operating portion, needle stand and needle tubing can be by automatic retracteds to housing；When needle stand is retracted into housing afterbody, needle stand locking device can realize snap lock with the clamping close device of housing afterbody again, prevents syringe needle from being released again outside housing；Simple to operate, easy to use.
Above content is further description patent of the present invention made with reference to specific preferred implementation it is impossible to assert that patent of the present invention is embodied as being confined to these explanations above-mentioned.For general technical staff of the technical field of the invention, on the premise of without departing from inventional idea of the present invention, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. a kind of needle automatic retracting formula safe intravenous infusion needle, it includes housing（1）With the needle stand in housing（2）It is characterised in that：Described needle stand includes needle hub body（3）And it is located at the syringe needle installation portion of needle hub body front end（4）；Above-mentioned needle hub body both sides are each provided with a slide block（5）, described slide block be connected outside needle hub body and along outside the forward end of syringe needle installation portion axle center extend formed a Flexible Connector（6）；The front end of described Flexible Connector is provided with the needle stand locking device (7) that engage horizontal and vertical with housing, and the outside of this needle stand locking device is provided with the hand-held unblock operating portion for engagement release（8）；Form spring mountings with syringe needle installation portion outer wall between two-side elastic connector（9）, needle hub body rear portion forms pipe connection portion（10）, this pipe connection portion be used for and tube for transfusion（11）Connect；
Described housing is in a strip quad flat body structure；Housing is by upper shell（12）And lower house（13）Combination is formed；Upper shell both sides obverse with lower house offer the upper hopper chute matching with needle stand locking device（14）；The both sides in lower house face corresponding with upper shell offer the gliding groove matching with needle stand locking device（15）；Casing center is provided with the strip cavity matching with needle hub body（16）；The front end of this strip cavity is provided with the perforate matching with syringe needle installation portion（17）, the rear end of this strip cavity is provided with the opening being in communication with the outside（18）；The both sides of this strip cavity are cooperatively formed the strip opening being in communication with the outside by upper-lower casing（19）, described strip opening is connected with strip cavity；In described strip opening, this hand-held unblock operating portion can slide axially in strip opening for the hand-held unblock operating position of above-mentioned needle stand；
It is provided with a spring at described spring mountings（20）.
2. a kind of needle automatic retracting formula safe intravenous infusion needle according to claim 1 it is characterised in that：Described needle stand locking device includes a upper protruding block matching with upper hopper chute（21）The lower protruding block matching with gliding groove with one（22）；Upper protruding block top is additionally provided with longitudinal projection of one and the in perpendicular shape connection of upper protruding block（23）.
3. a kind of needle automatic retracting formula safe intravenous infusion needle according to claim 1 it is characterised in that：Described syringe needle installation portion with needle hub body inner space and syringe needle installation portion axle center be partial to needle hub body axle center side formed dislocation be connected（24）.
4. a kind of needle automatic retracting formula safe intravenous infusion needle according to claim 1 it is characterised in that：The spring installation place of described syringe needle installation portion outer wall is provided with the reinforcement of axially distribution（25）, this reinforcement formed external diameter match with spring inside diameter.
5. a kind of needle automatic retracting formula safe intravenous infusion needle according to claim 1 it is characterised in that：Described needle hub body pipe connection portion inner chamber leading portion is provided with a relief valve preventing liquid reflux（26）.
6. a kind of needle automatic retracting formula safe intravenous infusion needle according to claim 5 it is characterised in that：Described relief valve includes being arranged on ring-shaped distributed convex tendon at needle hub body pipe connection portion inner chamber leading portion inwall（27）With the conical plug cavity (28) inside annular distribution convex tendon;One end of annular distribution convex tendon forms a circular step（29）；Tube for transfusion one end is assemblied in pipe connection portion and is connected with above-mentioned circular step；It is provided with the conical plug of one one-tenth suspension in described conical plug cavity（30）；The cone tip part of this conical plug points at tube for transfusion one end open.
7. a kind of needle automatic retracting formula safe intravenous infusion needle according to claim 1 it is characterised in that：The upper hopper chute front end external groove sidevall of described upper shell both sides arranges an intilted guiding chute wall（31）, the front end of described guiding chute wall arranges a horizontal cut（32）, in guiding chute wall front end at bottom land, open up the longitudinal breach that connect in perpendicular shape with horizontal cut（33）.
8. a kind of needle automatic retracting formula safe intravenous infusion needle according to claim 7 it is characterised in that：A breach is offered at the bottom land of described upper hopper chute front end（34）, this breach connected with above-mentioned horizontal cut and longitudinal breach；Above-mentioned horizontal cut and longitudinal breach and longitudinal projection cooperation of needle stand upper protruding block and its top, can form horizontal and vertical snap lock.
9. a kind of needle automatic retracting formula safe intravenous infusion needle according to claim 1 it is characterised in that：Described upper shell is equipped with, with the outside of the rear end of lower house both sides chute, the depressed part connecting with upper hopper chute and gliding groove（35）, this depressed part is coordinated with the upper protruding block of above-mentioned needle stand locking device and lower protruding block, forms reverse snap lock structure.
10. a kind of needle automatic retracting formula safe intravenous infusion needle according to claim 1 it is characterised in that：Described housing forward end lateral wall is narrowed to inner side；When hand-held unblock operating position is in front housing section, hand-held unblock operating portion is exposed to outside above-mentioned strip opening；When hand-held portion is located at housing back segment, then it is located in described strip opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510533276.0A CN106474593A (en) | 2015-08-27 | 2015-08-27 | A kind of needle automatic retracting formula safe intravenous infusion needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510533276.0A CN106474593A (en) | 2015-08-27 | 2015-08-27 | A kind of needle automatic retracting formula safe intravenous infusion needle |
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| Publication Number | Publication Date |
|---|---|
| CN106474593A true CN106474593A (en) | 2017-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510533276.0A Pending CN106474593A (en) | 2015-08-27 | 2015-08-27 | A kind of needle automatic retracting formula safe intravenous infusion needle |
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| CN (1) | CN106474593A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107281587A (en) * | 2017-06-09 | 2017-10-24 | 王祖扬 | A kind of needle safety retraction intravenous infusion needle |
| CN107469190A (en) * | 2017-09-05 | 2017-12-15 | 山东威高集团医用高分子制品股份有限公司 | Retraction type intravenous infusion needle |
| CN108937960A (en) * | 2017-04-27 | 2018-12-07 | 王祖扬 | A kind of needle automatic retracting formula blood taking needle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108937960A (en) * | 2017-04-27 | 2018-12-07 | 王祖扬 | A kind of needle automatic retracting formula blood taking needle |
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| CN107469190B (en) * | 2017-09-05 | 2024-01-26 | 山东威高集团医用高分子制品股份有限公司 | Retractable intravenous infusion needle |
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Effective date of registration: 20220902 Address after: 401346 1-1 and 1-2, building 1, No. 16, Shigui Avenue, Jieshi Town, Banan District, Chongqing Applicant after: Chongqing pharmaceutical group Weixun Medical Technology Co.,Ltd. Address before: 200336 Room 301, No. 25, Lane 99, huangjincheng Road, Changning District, Shanghai Applicant before: Wang Zuyang |