CN2574599Y - Multifunction hemostix - Google Patents
Multifunction hemostix Download PDFInfo
- Publication number
- CN2574599Y CN2574599Y CN 02258299 CN02258299U CN2574599Y CN 2574599 Y CN2574599 Y CN 2574599Y CN 02258299 CN02258299 CN 02258299 CN 02258299 U CN02258299 U CN 02258299U CN 2574599 Y CN2574599 Y CN 2574599Y
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- China
- Prior art keywords
- needle
- button
- spring
- needle handle
- housing
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- Expired - Fee Related
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Abstract
The utility model relates to an injection type disposable safety automatic blood taking needle, which comprises a casing, the blood taking needle with a cap and a spring, wherein, the casing forms an ejecting cavity. The blood taking needle is formed by a needle cap 6, a needle handle 7 and a packed needle body [5], wherein, the needle handle 7 is positioned in the ejecting cavity and is connected with the casing in the sliding mode. The needle cap 6 is extended out from a needle outlet hole 3 of the casing, and the spring 2 acts on the needle handle 7 from the back part of the blood taking needle. The utility model is characterized in that a buckle body 9 is arranged on a wall at the inner side of the casing, and a body with a hook 8 and an elastic arm 11 are arranged on the needle handle 7. The hook body 8 and the buckle body 9 forms a pair of clamping hook structures, and the back part of the casing is provided with a button 1 which is connected with the casing in the sliding mode. On one hand, the button 1 acts on the spring 2, and on the other hand, the button acts on the hook body 8 by extending an inclined surface or a cambered surface of a pushing and pressing part and using lateral component force. The utility model has a scheme that the button which can compress the spring and emits the blood taking needle is designed, and in a mechanism, after emission, the elastic arm runs up and retracts along a sliding groove. The elastic arm is blocked by the back surface of the buckle body in the process of a stroke, and consequently after one-time emission, the mechanism is in the failure state and can not be reused.
Description
Technical field
This utility model relates to disposable medical safety automatic blood-taking needle, is specifically related to a kind of safe automatic blood-taking needle structure of new disposable emission.This blood taking needle card is penetrated structure in use can only carry out disposable emission, not reproducible use.
Background technology
Along with medical level improves constantly, people are familiar with also in continuous intensification the safety that blood taking needle brought.In the prior art, the form of medical blood-sampling needle is varied, but from development trend, and the blood taking needle that possesses miniaturization, the disposable use of safety and characteristics such as easy to operate will be subjected to generally paying attention to.Although most in the market small-sized blood taking needle structures are small and exquisite, easy to use, also are disposable product, itself really can reuse its structure, and such design is unsafe to medical blood-sampling needle.In order thoroughly to eradicate potential safety hazard, Chinese patent on February 20th, 2002 bulletin authorized a name to be called " disposable safe automatic blood-taking needle ", notification number is CN2477138Y, the patent No. is the utility model patent of ZL01237714.7.This patent provides a kind of blood taking needle with safety protection structure, its principle is on the mating surface between needle handle and the shell, tiltedly establish elastic arm for one, another is provided with the stop mouth, and elastic arm falls into the stop mouth with needle handle emission back and forms the barb chocking construction in backhaul.The characteristics of above-mentioned patent are: blood taking needle ceases to be in force automatically after launching once, has thoroughly got rid of the possibility that reuses, and has eliminated the safety problem that blood taking needle is left over, and really becomes undisputed disposable products.For this reason, this utility model has been conceived a kind of safe automatic blood-taking needle of new disposable emission according to the design principle of " primary emission, can not reuse ".
Summary of the invention
For achieving the above object, the technical solution adopted in the utility model is: a kind of pull-jetting type disposable safe automatic blood-taking needle comprises:
One housing, this housing constitutes an ejection chamber, and an end of ejection chamber is provided with needle outlet;
One band medicated cap blood taking needle, this blood taking needle is formed by pin medicated cap and needle handle parcel needle body, and needle handle is positioned at ejection chamber, and is slidingly connected with housing, and not holding from the set needle outlet of shell end of pin medicated cap stretched out;
One spring, this spring acts on needle handle from the blood taking needle rear portion;
The correspondence position of housing ejection chamber sidewall is provided with a fixing button, and needle handle is provided with an elastic arm, and the not end of elastic arm is provided with coupler body, and this coupler body and button cooperate and form the coupler construction of the relative ejection chamber of needle handle on direction of ejection;
The rear portion of housing is provided with a button, this button and housing are slidingly connected, button is connected with the spring that acts on needle handle on the one hand in addition, form the pressing structure that acts on spring with this, corresponding on the other hand coupler construction position is provided with the pushing portion of extending, this pushing portion utilizes cross component force to act on coupler body by inclined-plane set on the end face or cambered surface, forms emitting structural with this.
The related content and the change interpretation of technique scheme are as follows:
1, in the such scheme, described " ejection chamber " is meant a kind of cavity that is formed by housing, and keeping in this cavity can the automatic blood taking needle of launching of disposable safe.
2, in the such scheme, described " band medicated cap blood taking needle " is meant the blood taking needle of being made up of pin medicated cap, needle handle and needle body.The needle body of this blood taking needle is ensconced in the needle handle, and needle point is ensconced in the pin medicated cap, and pin medicated cap and needle handle wrap up whole pin, and the pin medicated cap is connected by one section thin, thinner pin neck with needle handle, just exposes needle point in case back out the pin medicated cap.The purpose that the pin medicated cap is set is in order to protect needle point on the one hand, is health on the other hand.Needle handle is generally structural member, and its effect one is to be used for fixing needle body, and the 2nd, be slidingly connected by it and housing.
3, in the such scheme, can operate as normal in order to guarantee this programme, described button, coupler body, elastic arm and to discharge the position of the relative housing of ennation important, this point can sharpen understanding by operation principle and work process.In other words can not make the work of blood taking needle produce the effect that contradiction maybe can't realize.
4, in the such scheme, for the ease of implementing, housing can be designed to shell and loam cake two parts and form, the inwall upper edge direction of ejection of shell is provided with the chute structure, needle handle side correspondence is provided with convex tendon, and convex tendon makes the relative ejection chamber of needle handle keep being slidingly connected among being positioned at chute; On cover to hang and be provided with a plumbing arm, the not end of plumbing arm forms a button, button inserted ejection chamber along chute when loam cake combined with shell, and was positioned on the ejection chamber sidewall; Finally act on coupler construction in the extension pushing portion position chute on the button and with moving of button.
5, in the such scheme, position on the diverse location before pressing and behind the pressing in order to make button, can be provided with the microprotrusion structure on the slip side of button, this projection cooperates the formation location structure with sliding surface.
This utility model principle is: designed one and can compress spring, can launch the button of blood taking needle again, when pressing knob down, button is compressing spring in the housing sliding process relatively, and force coupler body and button on the elastic arm to be threaded off by cross component force during near the stroke end, thereby under promoting, spring launches blood taking needle.After emission finished, needle handle was in retraction process, because elastic arm is obstructed when running into the button back side along chute is up, make the coupler body on the elastic arm not combine snap close with button once more, finally cause entire mechanism to lose efficacy, realize primary emission, expendable purpose.
Because the technique scheme utilization, this utility model compared with prior art has following advantage:
1, the ingenious stroke that utilizes button of this utility model, in the pressing stroke, compress spring, triggering fastener structure near stroke end place, when needle handle bounce back because up being obstructed of coupler body and irrecoverablely arrive original lock-out state, thereby cause failure mechanisms, realize disposable emission.Its technical conceive uniqueness, novel and reasonable structure has technological progress significantly and unobviousness, has demonstrated fully this programme and the difference and the individual character of known technology in the past.
2, this utility model use is extremely convenient, and whole operation only needs two actions to finish, and first is to pull out the pin medicated cap, and second is the pressing button.
3, in needle point was withdrawn housing automatically after this utility model used, can not expose, guarantee the safety after blood taking needle uses.
4, this utility model volume is little, compact conformation, and reliable operation is a kind of safe automatic blood-taking needle of new disposable emission.
Description of drawings
Accompanying drawing 1 uses the structure cutaway view of preceding state for this utility model embodiment;
Accompanying drawing 2 is the left view of Fig. 1;
Accompanying drawing 3 is pulled up the structure cutaway view of pin medicated cap state for before this utility model embodiment uses;
Accompanying drawing 4 is aimed at the structure cutaway view that the finger blood sampling site presses the button emission back state in this utility model embodiment use;
Accompanying drawing 5 uses the structure cutaway view of back (when emission back retraction is stablized) for this utility model embodiment.
In the above accompanying drawing: 1, button; 2, spring; 3, loam cake; 4, shell; 5, needle body; 6, pin medicated cap; 7, needle handle; 8, coupler body; 9, button; 10, projection; 11, elastic arm; 12, chute; 13, needle outlet.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is further described:
Embodiment:, form by housing, band medicated cap blood taking needle, spring 2 and button 1 referring to accompanying drawing 1～shown in Figure 5, a kind of pull-jetting type disposable safe automatic blood-taking needle.Housing is made of shell 4 and loam cake 3 two parts, and housing constitutes an ejection chamber, and an end of ejection chamber is provided with needle outlet 13.Band medicated cap blood taking needle is made up of pin medicated cap 6, needle handle 7 and needle body 5, and needle body 5 is ensconced in the needle handle 7, and needle point is ensconced in the pin medicated cap 6, pin medicated cap 6 and the whole pin of needle handle 7 parcels, and the pin medicated cap is connected by one section thin, thinner pin neck with needle handle, just exposes needle point in case back out the pin medicated cap.Needle handle 7 is positioned at ejection chamber, and is slidingly connected with shell 4, and not holding from the set needle outlet 13 of shell end of pin medicated cap 6 stretched out, and spring 2 acts on needle handle 7 from the blood taking needle rear portion.Described needle handle 7 and shell 4 be slidingly connected for: shell 4 is provided with the chute structure at inwall upper edge direction of ejection, and needle handle 7 side correspondences are provided with convex tendon, and convex tendon is slidingly connected needle handle 7 relative ejection chambers maintenances among being positioned at chute.Hang on the loam cake 3 and be provided with a plumbing arm, the not end of plumbing arm forms a button 9, and button 9 inserted ejection chamber along chute when loam cake 3 combined with shell 4, and was positioned on the ejection chamber sidewall.Needle handle 7 is provided with an elastic arm 11, and the not end of elastic arm 11 is provided with coupler body 8, and this coupler body 8 cooperates the coupler construction of formation needle handle 7 relative ejection chambers on direction of ejection with button 9.The rear portion of housing is provided with a button 1, this button 1 is slidingly connected with housing, button 1 is connected with the spring 2 that acts on needle handle 7 on the one hand in addition, form the pressing structure that acts on spring 2 with this, on the other hand in the extension pushing portion position chute on the button 1, this pushing portion utilizes cross component force to act on coupler body 8 by inclined-plane set on the end face, forms emitting structural with this.The slip side of described button 1 is provided with microprotrusion 10 structures, and this projection 10 cooperates the formation location structure with sliding surface.
The present embodiment course of action is referring to accompanying drawing 1, Fig. 3, Fig. 4 and Fig. 5 order:
Accompanying drawing 1 uses the structure cutaway view of preceding state for this blood taking needle.Under this state, the coupler body 8 on the elastic arm 11 is not held set button 9 to be in loam cake 1 plumbing arm and is combined lock-out state, and spring 2 acts between needle handle 7 and the button 1, and button 1 stops owing to following projection 10, is in positioning states.
The first step is pulled up pin medicated cap 6, makes this blood taking needle be in accompanying drawing 3 states before use.
Second step was aimed at the human blood collection position with the needle outlet 5 of blood taking needle, and pressing button 1, this moment, button 1 relative housing was to lower slider, compression spring 2 in sliding process, extension pushing portion when sliding near the stroke end on the button 1 forces the coupler body 8 on the elastic arm 11 to be threaded off with button 9 by the inclined-plane cross component force, because this moment, spring 2 was compressed,, see Fig. 4 so spring 2 just promotes needle handle 7 slip emission blood taking needle fast.After emission finishes, needle handle 2 enters retraction stage under housing bounce and spring 2 pulling force combineds effect, in retraction process, because the elastic reaction of elastic arm 11, make coupler body 8 up and when running into button 9 back sides, be obstructed and stop along chute, coupler body 8 was blocked in button 9 back sides and made the coupler body 8 on the elastic arm 11 not combine snap close with button 9 once more this moment, thereby caused mechanism to enter failure state behind primary emission, saw Fig. 5.Putting pin medicated cap 6 for safety at last.
Claims (3)
1, a kind of pull-jetting type disposable safe automatic blood-taking needle comprises:
One housing, this housing constitutes an ejection chamber, and an end of ejection chamber is provided with needle outlet [13];
One band medicated cap blood taking needle, this blood taking needle is formed by pin medicated cap [6] and needle handle [7] parcel needle body [5], and needle handle [7] is positioned at ejection chamber, and is slidingly connected with housing, and not holding from the set needle outlet of shell end [13] of pin medicated cap [6] stretched out;
One spring [2], this spring [2] act on needle handle [7] from the blood taking needle rear portion;
It is characterized in that:
The correspondence position of housing ejection chamber sidewall is provided with a fixing button [9], needle handle [7] is provided with an elastic arm [11], the not end of elastic arm [11] is provided with coupler body [8], and this coupler body [8] cooperates the coupler construction of the formation relative ejection chamber of needle handle [7] on direction of ejection with button [9];
The rear portion of housing is provided with a button [1], this button [1] is slidingly connected with housing, button [1] is connected with the spring that acts on needle handle [7] [2] on the one hand in addition, form the pressing structure that acts on spring [2] with this, corresponding on the other hand coupler construction position is provided with the pushing portion of extending, this pushing portion utilizes cross component force to act on coupler body [8] by inclined-plane set on the end face or cambered surface, forms emitting structural with this.
2, pull-jetting type disposable safe automatic blood-taking needle according to claim 1, it is characterized in that: described housing is made of shell [4] and loam cake [3] two parts, the inwall upper edge direction of ejection of shell [4] is provided with the chute structure, needle handle [7] side correspondence is provided with convex tendon, and convex tendon makes the relative ejection chamber of needle handle [7] keep being slidingly connected among being positioned at chute; Loam cake [3] go up to hang and to be provided with a plumbing arm, and the not end of plumbing arm forms a button [9], loam cake [3] and shell [4] when combining button [9] and be positioned on the ejection chamber sidewall along chute insertion ejection chamber; Finally act on coupler construction in the extension pushing portion position chute on the button [1] and with moving of button [1].
3, pull-jetting type disposable safe automatic blood-taking needle according to claim 1 is characterized in that: the slip side of described button [1] is provided with microprotrusion [10] structure, and this projection [10] cooperates the formation location structure with sliding surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02258299 CN2574599Y (en) | 2002-11-04 | 2002-11-04 | Multifunction hemostix |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02258299 CN2574599Y (en) | 2002-11-04 | 2002-11-04 | Multifunction hemostix |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2574599Y true CN2574599Y (en) | 2003-09-24 |
Family
ID=33726059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02258299 Expired - Fee Related CN2574599Y (en) | 2002-11-04 | 2002-11-04 | Multifunction hemostix |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2574599Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455261C (en) * | 2005-10-24 | 2009-01-28 | 李福渊 | Disposable blood taking needle |
| CN105640572B (en) * | 2015-01-20 | 2018-08-31 | 广州市酷跑计算机科技有限公司 | A kind of safety type blood collecting needle construction |
| CN110680347A (en) * | 2019-10-18 | 2020-01-14 | 上海宝舜医疗器械有限公司 | Push type safety protection mechanism of blood taking needle |
-
2002
- 2002-11-04 CN CN 02258299 patent/CN2574599Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455261C (en) * | 2005-10-24 | 2009-01-28 | 李福渊 | Disposable blood taking needle |
| CN105640572B (en) * | 2015-01-20 | 2018-08-31 | 广州市酷跑计算机科技有限公司 | A kind of safety type blood collecting needle construction |
| CN110680347A (en) * | 2019-10-18 | 2020-01-14 | 上海宝舜医疗器械有限公司 | Push type safety protection mechanism of blood taking needle |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030924 Termination date: 20111104 |