CN2684765Y - Needle core self-locking disposable safety automatic blood taking needle - Google Patents
Needle core self-locking disposable safety automatic blood taking needle Download PDFInfo
- Publication number
- CN2684765Y CN2684765Y CN 200420025752 CN200420025752U CN2684765Y CN 2684765 Y CN2684765 Y CN 2684765Y CN 200420025752 CN200420025752 CN 200420025752 CN 200420025752 U CN200420025752 U CN 200420025752U CN 2684765 Y CN2684765 Y CN 2684765Y
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- CN
- China
- Prior art keywords
- elastic arm
- self
- locking
- taking needle
- closing member
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a needle core self-locking disposable safety automatic blood taking needle, comprising a shell body, a needle core [3] and a spring [4]. The needle core self-locking disposable safety automatic blood taking needle is characterized in that: the needle core [3] is provided with a self-locking elastic arm, and the self-locking elastic arm is composed of an elastic arm [8] and a self-locking hook [9] extended by the needle core [3]; the self-locking hook [9] is positioned at the position corresponding to the tail end of the elastic arm [8], and the tail end of the elastic arm [8] is positioned out of the self-locking hook [9] in assembling state before launching and clamped at the shell body; The elastic arm [8] bends inward under the effect of external force when pressing launch, and the tail end is forced to cross the hook and finally clamped at the self-locking hook [9] for forming self locking; thus the aim of launching once without restoration is obtained. The project is an entire needle core self locking, which depends on the self-locking hook of the needle core for locking the elastic arm, the self-locking structure is arranged at the same member, self locking is operated first, and then launching is carried out when working.
Description
Technical field
This utility model relates to disposable medical safety automatic blood-taking needle, is specifically related to " mini " disposable safe automatic blood-taking needle that nook closing member self-locking type card is penetrated structure.This blood taking needle card is penetrated the latch nook coupler body that structure crosses on the nook closing member at the elastic arm end on the nook closing member after the emission and is entered a kind of self-locking state, thereby not reproducible use.
Background technology
" mini " blood taking needle of disposable emission is a kind of trend of current blood taking needle device development, this class blood taking needle is the same with common blood taking needle also to be to be made of housing, nook closing member and spring, but different is that this blood taking needle indoor design has a kind of special self-locking type card to penetrate structure, the effect of this structure is to produce the self-locking effect immediately after the blood taking needle emission, making card penetrate structure ceases to be in force automatically, thereby further get rid of the probability that blood taking needle reuses, thoroughly eradicate the potential safety hazard that blood taking needle is in the past left over.Such as, Chinese patent a kind of name that bulletin was authorized on February 20th, 2002 is called " disposable safe automatic blood-taking needle ", the patent No. is the utility model patent of ZL01237714.7, a kind of blood taking needle with the self-locking type safety protection structure just is provided, its principle is tiltedly to establish elastic arm on nook closing member, establish the stop mouth on shell, elastic arm falls into the stop mouth with nook closing member emission back and forms self-locking in backhaul.Therefore, the card of this blood taking needle is penetrated structure and can only disposablely be used, and has thoroughly got rid of the possibility that reuses, and really becomes undisputed disposable products.This utility model has designed the disposable safe automatic blood-taking needle that another kind of self-locking type card is penetrated structure according to the principle of above-mentioned " primary emission, can not reuse ", and this blood taking needle card is penetrated structure and entered self-locking state simultaneously in emission, therefore not reproducible use.
Summary of the invention
For achieving the above object, the technical solution adopted in the utility model is: a kind of nook closing member self-locking type disposable safe automatic blood-taking needle, comprise: housing, nook closing member and spring, housing constitutes an ejection chamber, the front end of ejection chamber is provided with needle outlet, nook closing member slides and is located in the ejection chamber, spring is located on the direction of ejection at nook closing member rear portion, nook closing member is provided with the self-locking type elastic arm, this self-locking type elastic arm is made of an elastic arm and latch nook that nook closing member extends laterally out, latch nook is positioned on the terminal corresponding position of elastic arm, the elastic arm end is positioned at outside the latch nook under the confined state before emission, and be stuck on the housing, elastic arm inwardly bending under external force when penetrating by percussion, and force end to cross coupler body finally to be stuck in and to form self-locking on the latch nook.
Related content and change interpretation in the technique scheme are as follows:
1, in the such scheme, described " nook closing member " is meant the member of band needle body, generally is made up of the part of needle body and parcel needle body.For the effect that reaches the protection needle point can be provided with the pin medicated cap before nook closing member, this pin medicated cap is exposed at outside the needle outlet for one section, and another section is passed needle outlet and is enclosed within on the needle point.
2, in the such scheme, the self-locking type elastic arm is a kind of whole nook closing member self-locking structure, it can with following three types matching by hitting structure:
(1), by hitting the elastic arm button that structure is the blood taking needle sidepiece, this elastic arm button is the edgewise adjutage structure of housing, its press-side acts on the elastic arm by the hole of pushing set on the housing sidewall, sees shown in the accompanying drawing 1.
(2), by hitting the button that structure is the blood taking needle sidepiece, this button is formed by the raised button structure on the elastic arm, this raised button structure be arranged in the housing side set push the hole, see shown in the accompanying drawing 4.
(3), by hitting the sliding sleeve that structure is the blood taking needle end, this sliding sleeve is slidingly connected as housing part another part with housing, and the elastic arm end is stuck in before emission on the sliding sleeve, and the elastic arm outside is provided with inclined-plane or jacking block, this inclined-plane or jacking block are fixed on another part housing, see shown in the accompanying drawing 5.
3, in the such scheme, realize self-locking smoothly in order to ensure elastic arm, elastic arm is provided with enough spaces of dodging on the direction of inwardly bending.
4, in the such scheme, the guidance quality when guaranteeing that nook closing member is launched in ejection chamber can be provided with gathering sill and guiding rib structure at housing and nook closing member both sides.
The utility model operation principle is: before blood taking needle used, spring was in compressive state, and the bayonet socket that the elastic arm on the nook closing member is not held is stuck in to be pushed on the side, hole, makes nook closing member be in battery, shown in accompanying drawing 1.When press...withing one's finger down the elastic arm button, the elastic arm button inwardly pushes away elastic arm and makes bayonet socket and push the hole unhook, and spring promotes the nook closing member shooting, shown in accompanying drawing 2.Because the pushing effect of button of when emission makes the elastic arm end finally be stuck in and form self-locking on the latch nook crossing coupler body after the unhook, causes nook closing member kayser once more, shown in accompanying drawing 3.
Because the technique scheme utilization, this programme compared with prior art has following advantage and effect:
1, to penetrate structure be a kind of innovation to the whole nook closing member self-locking type card in this utility model blood taking needle, it is that the latch nook that relies on nook closing member itself to carry pins elastic arm, and the self-locking type card of existing other blood taking needle to penetrate structure be that interaction by nook closing member and other member reaches, therefore, this utility model structure is more reliable by contrast.
2, the whole nook closing member self-locking type of this utility model card is penetrated structure order at work and is: first self-locking, and then emission nook closing member.And the blood taking needle self-locking type card of existing other type to penetrate structure all be first emission, and then self-locking, therefore this utility model more can embody the design principle of " primary emission, can not reuse " by contrast.
3, this utility model design is unique, novel structure, and to penetrate the structure structure compared simply ingenious with existing self-locking type card, has technological progress significantly and unobviousness, demonstrated fully this programme and the difference and the individual character of known technology in the past.
4, this utility model use is extremely convenient, as long as blood taking needle is aimed at blood sampling site to press the button, if be provided with the pin medicated cap as long as elder generation rotates the pin medicated cap and pulls out, aim at the blood sampling site pressing button again and gets final product during operation.
5, in needle point was withdrawn housing automatically after this utility model used, can not expose, guarantee the safety after blood taking needle uses.
Description of drawings
Accompanying drawing 1 is this utility model embodiment one structure cutaway view, and this figure is the assembly structure of state before using;
Accompanying drawing 2 is this utility model embodiment one structure cutaway view, and this figure is the assembly structure of shooting blood sampling state;
Accompanying drawing 3 is this utility model embodiment one structure cutaway view, and this figure is the assembly structure that uses the back state;
Accompanying drawing 4 is this utility model embodiment two structure cutaway views, and this figure is the assembly structure of state before using;
Accompanying drawing 5 is this utility model embodiment three structural representations.
In the above accompanying drawing: 1, upper casing; 2, lower casing; 3, nook closing member; 4, spring; 5, pin medicated cap; 6, needle outlet; 7, needle point; 8, elastic arm; 9, latch nook; 10, elastic arm button; 11, push the hole; 12, card; 13, button; 14, sliding sleeve; 15, go up cover; 16, inclined-plane.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is further described:
Embodiment one: shown in accompanying drawing 1～accompanying drawing 3, a kind of nook closing member self-locking type disposable safe automatic blood-taking needle is made up of housing, nook closing member 3 and spring 4.Described housing is put together by upper casing 1 and lower casing 2; constitute an ejection chamber in the housing; the front end of ejection chamber is provided with needle outlet 6; nook closing member 3 slides and is located in the ejection chamber; the front portion of nook closing member 3 is provided with pin medicated cap 5; this pin medicated cap is exposed at outside the needle outlet 6 for 5 one sections, and the other end is inserted on the needle point 7 by needle outlet 6, plays the safeguard protection effect.Spring 4 is located on the direction of ejection at nook closing member 3 rear portions, and an end of spring 4 is fixed on the spring stack of nook closing member afterbody, and the other end is fixed on the set card 12 of upper casing 1 afterbody.Nook closing member 3 is penetrated structure with case side to be provided with card on the spring compressed path, this card is penetrated structure and is made of the self-locking type elastic arm on elastic arm button on the housing 10 and the nook closing member 3, elastic arm button 10 is the edgewise adjutage structure of housing, it acts on the self-locking type elastic arm by the hole 11 of pushing set on the housing sidewall, the self-locking type elastic arm is made of an elastic arm 8 and latch nook 9 that nook closing member 3 extends laterally out, latch nook 9 is positioned on the elastic arm 8 terminal corresponding positions, nook closing member 3 compression springs 4, its elastic arm 8 ends are stuck in to push on 11 sides, hole by bayonet socket and constitute battery, and elastic arm 8 ends are stuck on the latch nook 9 and form self-locking structure after penetrating by percussion.Realize self-locking smoothly in order to ensure elastic arm, elastic arm 8 ends should be suitable with cooperating of latch nook 9 on the one hand, and elastic arm 8 is provided with enough spaces of dodging on the direction of inwardly bending on the other hand.
Embodiment two: shown in accompanying drawing 4, a kind of nook closing member self-locking type disposable safe automatic blood-taking needle is made up of housing, nook closing member 3 and spring 4.With embodiment one difference be: by hitting the button that structure is the blood taking needle sidepiece, this button is formed by a raised button 13 structures on the elastic arm 8, these raised button 13 structures be arranged in the housing side set push hole 11.Write off the elastic arm press-button structure among the embodiment one.Other is identical with embodiment one, no longer is repeated in this description here.
Embodiment three: shown in accompanying drawing 5, a kind of nook closing member self-locking type disposable safe automatic blood-taking needle is made up of housing, nook closing member 3 and spring 4.Housing is made of sliding sleeve 14 and last cover 15, and nook closing member 3 two sides are arranged with the self-locking type elastic arm, and described self-locking type elastic arm is identical with embodiment one structure.Difference is: by hitting the sliding sleeve 14 that structure is the blood taking needle end, this sliding sleeve 14 is slidingly connected with last cover 15 as a housing part, elastic arm 8 ends are stuck in before emission on the sliding sleeve 14, and elastic arm 8 outsides are provided with inclined-plane 16, and this inclined-plane 16 is fixed on the cover 15.During work, twist pin medicated cap 5 earlier, the hand-held then cover 15 aligning blood sampling sites of going up are pushed, sliding sleeve 14 in Fig. 5 relatively on cover 15 move right, sliding sleeve 14 front ends promote nook closing member 3 by elastic arm 8 and move right, in moving, inclined-plane 16 forces elastic arm 8 inside bendings, finally makes elastic arm 8 ends cross coupler body and is stuck on the latch nook 9 and forms self-locking.Because elastic arm 8 breaks away from sliding sleeve 14, nook closing member 3 shootings under spring 4 promotes.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of being done according to this utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (5)
1, a kind of nook closing member self-locking type disposable safe automatic blood-taking needle, comprise: housing, nook closing member [3] and spring [4], housing constitutes an ejection chamber, the front end of ejection chamber is provided with needle outlet [10], nook closing member [3] slides and is located in the ejection chamber, spring [4] is located on the direction of ejection at nook closing member [3] rear portion, it is characterized in that: nook closing member [3] is provided with the self-locking type elastic arm, this self-locking type elastic arm is made of an elastic arm [8] and the latch nook [9] that nook closing member [3] extends laterally out, latch nook [9] is positioned on the terminal corresponding position of elastic arm [8], elastic arm [8] is terminal to be positioned at outside the latch nook [9] before emission under the confined state, and be stuck on the housing, elastic arm when penetrating by percussion [8] is inwardly bending under external force, and forces end to cross coupler body finally to be stuck in latch nook [9] and to go up and form self-locking.
2, blood taking needle according to claim 1, it is characterized in that: by hitting the elastic arm button [10] that structure is the blood taking needle sidepiece, this elastic arm button [10] is the edgewise adjutage structure of housing, and its press-side acts on the elastic arm [8] by the hole [11] of pushing set on the housing sidewall.
3, blood taking needle according to claim 1, it is characterized in that: by hitting the button that structure is the blood taking needle sidepiece, this button is formed by a raised button [13] structure on the elastic arm [8], this raised button [13] structure be arranged in the housing side set push hole [11].
4, blood taking needle according to claim 1, it is characterized in that: by hitting the sliding sleeve that structure is the blood taking needle end, this sliding sleeve is slidingly connected as housing part another part with housing, elastic arm [8] is terminal to be stuck on the sliding sleeve before emission, elastic arm [8] outside is provided with inclined-plane or jacking block, and this inclined-plane or jacking block are fixed on another part housing.
5, blood taking needle according to claim 1 is characterized in that: described elastic arm [8] is provided with on the direction of inwardly bending and dodges the space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420025752 CN2684765Y (en) | 2004-03-25 | 2004-03-25 | Needle core self-locking disposable safety automatic blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420025752 CN2684765Y (en) | 2004-03-25 | 2004-03-25 | Needle core self-locking disposable safety automatic blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2684765Y true CN2684765Y (en) | 2005-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420025752 Expired - Lifetime CN2684765Y (en) | 2004-03-25 | 2004-03-25 | Needle core self-locking disposable safety automatic blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2684765Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7322997B2 (en) | 2004-04-16 | 2008-01-29 | Guoping Shi | Automatic safe disposable blood sampling device of casing self-locking type |
| CN101444428B (en) * | 2008-12-30 | 2010-04-07 | 苏州施莱医疗器械有限公司 | Safe portable disposable automatic blood-taking needle |
| CN102028480A (en) * | 2010-12-21 | 2011-04-27 | 苏州施莱医疗器械有限公司 | Improved safe and convenient disposable automatic blood taking needle |
| CN102405017A (en) * | 2009-04-03 | 2012-04-04 | 格雷斯海姆雷根斯堡股份有限公司 | Pricking aid comprising a lancet ejection means |
| CN106308855A (en) * | 2016-08-23 | 2017-01-11 | 南京微创医学科技股份有限公司 | Safety locking device |
| CN113892949A (en) * | 2021-09-15 | 2022-01-07 | 福州康利特医疗器械有限公司 | Pen type blood taking needle storage device |
-
2004
- 2004-03-25 CN CN 200420025752 patent/CN2684765Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7322997B2 (en) | 2004-04-16 | 2008-01-29 | Guoping Shi | Automatic safe disposable blood sampling device of casing self-locking type |
| CN101444428B (en) * | 2008-12-30 | 2010-04-07 | 苏州施莱医疗器械有限公司 | Safe portable disposable automatic blood-taking needle |
| CN102405017A (en) * | 2009-04-03 | 2012-04-04 | 格雷斯海姆雷根斯堡股份有限公司 | Pricking aid comprising a lancet ejection means |
| CN102028480A (en) * | 2010-12-21 | 2011-04-27 | 苏州施莱医疗器械有限公司 | Improved safe and convenient disposable automatic blood taking needle |
| CN106308855A (en) * | 2016-08-23 | 2017-01-11 | 南京微创医学科技股份有限公司 | Safety locking device |
| CN106308855B (en) * | 2016-08-23 | 2023-11-24 | 南微医学科技股份有限公司 | Safety locking device |
| CN113892949A (en) * | 2021-09-15 | 2022-01-07 | 福州康利特医疗器械有限公司 | Pen type blood taking needle storage device |
| CN113892949B (en) * | 2021-09-15 | 2024-02-23 | 福州康利特医疗器械有限公司 | Pen type blood taking needle storage device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140325 Granted publication date: 20050316 |