CN100446725C - Blood taking needle assembly - Google Patents
Blood taking needle assembly Download PDFInfo
- Publication number
- CN100446725C CN100446725C CNB2006100585646A CN200610058564A CN100446725C CN 100446725 C CN100446725 C CN 100446725C CN B2006100585646 A CNB2006100585646 A CN B2006100585646A CN 200610058564 A CN200610058564 A CN 200610058564A CN 100446725 C CN100446725 C CN 100446725C
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- China
- Prior art keywords
- needle
- sleeve
- needle tubing
- blood taking
- module
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Abstract
The invention relates to a blood taking needle module, including a sleeve arranged with a front inwall converging forwards to form a needle out port, a needle tubing arranged fixedly with a blood taking needle and a closing piece for sealing the nozzle of the needle tubing, wherein the sleeve is covered on the needle tubing, and the lateral wall of the sleeve is formed with a braking hole; a brake disc for stopping in the braking hole and a shrapnel for stopping in the inwall of the sleeve front end slant are formed on the flank of the sleeve; the blood taking needle head fixed in the needle tubing protrudes the nozzle of the needle tubing; the closing piece is not only sealed outward the nozzle of the needle tubing but also covered on the needle head, and the nozzle of the needle tubing extends the needle out port of the sleeve. The invention adopts the sleeve lateral wall braking hole and the structure of the braking disc, which is convenient for assemble, and makes the action to push the needle tubing effective and proper.
Description
Technical field
The present invention refers to utilize sleeve wall brake hole and the arresting blood taking needle module of needle tubing brake(-holder) block especially about a kind of blood taking needle module.
Background technology
Medical personnel can sting a minor cut or wound so that obtain small blood sample on the patient or the person that accepts inspection in many cases.The rib pin of Shi Yonging, cutting needle or blood-letting sheet or the like all had inconvenience in sterilization, operation and in the processing after using in the past.
So have as shown in Figures 7 and 8, the blood taking needle module of a traditional jettisonable uses one to include the blood sampling rifle 50 of a striker 51 to take blood sample.This blood taking needle module includes a sleeve 60, a needle tubing 70, a blood taking needle 30 and an envelop piece 40; This blood taking needle 30 is arranged in this needle tubing 70, and this envelop piece 40 is sealed in needle tubing 70 front ends, and this needle tubing 70 is arranged in sleeve 60 inside; This sleeve 60 is a cylindrical shell, and the end forms a back nozzle 61 thereafter, and back nozzle 61 inner edges form a flange 611; These sleeve 60 leading portion inwalls are restrained forward and are formed inclined-plane 62, form a needle outlet 63 at leading section; This needle tubing 70 is one to be arranged in the hollow body of these sleeve 60 inside, and its leading section forms a mouth of pipe 71, and its rear end is combined with a shock plate 72, and these shock plate 72 external diameters are matched with back nozzle 61 internal diameters, but are limited to sleeve 60 inside by this flange 611; These needle tubing 70 sides form at least one shell fragment 74 that is butted on sleeve 60 leading portion inclined-planes 62; This blood taking needle 30 is fixedly arranged on this needle tubing 70 inside, and its syringe needle 31 stretches out this needle tubing 70 mouths of pipe 71; This envelop piece 40 is sealed these needle tubing 70 mouths of pipe, 71 places and is entangled syringe needle 31, and these needle tubing 70 mouths of pipe 71 extend outside the needle outlet 63 of sleeve 60 certainly.
This blood taking needle module is installed in this blood sampling rifle 50 tips, remove this envelop piece 40 with after exposing blood taking needle 30 syringe needles 31 at user, sleeve 60 needle outlets 63 of blood taking needle module are aimed at the position that desire forms the blood sampling wound, striker 51 with blood sampling rifle 50 clashes into these shock plates 72 again, the needle tubing 70 that makes this blood taking needle module is to front slide, syringe needle 31 forward end that order has been exposed eject outside needle outlet 63, sting out the blood sampling wound; Needle tubing 70 drove simultaneously and was formed at its lateral shell fragment 74 and washes away forward this moment, made shell fragment 74 be subjected to the compressing on inclined-plane 62, and the strength that performance one recovers original form retracts needle tubing 70, made syringe needle 31 pass through needle outlets 63 and resetted and get back to sleeve 60 inside.
As mentioned above, the chance exposed of blood taking needle 30 syringe needles 31 only terminates in the moment of stinging out the blood sampling wound; Before blood sampling, unlikely the exposing of coating that this syringe needle 31 is subjected to envelop piece 40 soon retracted by shell fragment 74 with needle tubing 70 after then being ejected by striker 51 impact forces, and stays sleeve 60 inside of this blood taking needle module.For using the medical personnel of this blood sampling rifle 50, this syringe needle 31 only exposes when forming the blood sampling wound, and also need not to contact this blood taking needle 30 syringe needles 31 when installing or removing this blood taking needle module before and after using, and makes safety significantly improve; For patient who accepts blood sampling or the people who accepts inspection, the method that syringe needle 31 thrusts the time ratio conventional manual significantly shortens, and pain also comparatively alleviates.
Yet the blood taking needle module of this tradition jettisonable still remains improved shortcoming.
Sleeve 60 back nozzle 61 inner edges of the blood taking needle module of this tradition jettisonable form the design of flange 611 with restriction needle tubing 70, may have crooked slightly because of striker 51 direct of travels in use, and a part bumps against the shock plate 72 that this flange 611, a part bump against these needle tubing 70 rear ends, make syringe needle 31 thrust degree of depth deficiency, fail to reach the blood sampling purpose, but must not reusable principle and need abandon based on syringe needle, re-use another blood taking needle module, not only wasted but also make by blood sampling person and be subjected to meaningless pain more.
See it from the angle of making, be integrally formed as under the situation of a cylindrical shell at this sleeve 60, make up this needle tubing 70 when this sleeve 60, deformation takes place in the shock plate 72 that need impose foreign compulsion needle tubing 70 rear ends, can be making the back nozzle 61 of needle tubing 70 penetrate and to keep somewhere in sleeve 60 inside from sleeve 60 rear ends, and recover shape to make this flange 611 performance limit functions wearing the back.This shock plate 72 may be impaired because of aforementioned deformation process, and then influence the acceptance rate of this tradition blood taking needle module manufacturing assembling.The old friend should use and make the shortcoming that all haves much room for improvement by tradition blood taking needle module.
Summary of the invention
Because traditional blood taking needle module is treated improved shortcoming using with making, the object of the present invention is to provide one easy to assembly and go out pin blood taking needle module smoothly.
For reaching aforementioned purpose, blood taking needle module of the present invention includes a sleeve, a needle tubing, a blood taking needle and an envelop piece; This blood taking needle is located in this needle tubing, and this envelop piece is sealed in the needle tubing front end, and this needle tubing is located at sleeve inner; Wherein this sleeve is a cylindrical shell, and the end forms a back nozzle thereafter, and its leading portion inwall is restrained forward and formed at least one inclined-plane, forms a needle outlet in barrel forward end portion; This sleeve lateral wall is formed with at least one brake hole; This needle tubing is a hollow body, is arranged in this sleeve inner; This needle tubing leading section forms a mouth of pipe, and its rear end is combined with one and is matched with the shock plate of nozzle internal diameter afterwards; This needle tubing side forms at least one brake(-holder) block that is butted on the sleeve lateral wall brake hole, and at least one shell fragment that is butted on sleeve leading portion inclined-plane; This blood taking needle is fixedly arranged on this needle tubing inside, and its syringe needle stretches out this needle tubing mouth of pipe; This envelop piece entangles syringe needle, and this needle tubing mouth of pipe extends outside the telescopic needle outlet certainly.
Preferably, this needle tubing side forms at least one guiding projection, and the shock plate side of needle tubing forms at least one guiding raised line, and this sleeve lining is formed with at least one axial guide groove from the rear end to front end; This guiding projection and guiding raised line are guided by this guide groove corresponding to this guide groove when making this needle tubing be arranged in this sleeve, make this needle tubing in this sleeve when mobile not around axial rotation, stablize the action of needle tubing in sleeve.
When using blood taking needle module of the present invention, be that it is installed in a blood sampling rifle that includes a striker, remove envelop piece earlier, make the blood taking needle syringe needle expose needle tubing, again the blood taking needle module is aimed at the position of desire blood sampling, clash into this shock plate with the striker of blood sampling rifle.This moment, this needle tubing withstood shocks power to front slide, drove simultaneously because of removing the syringe needle that envelop piece exposes and ejected telescopic needle outlet, stung out the wound of taking a blood sample at the position of desire blood sampling.
Except driving syringe needle, needle tubing also drives and is formed at its lateral shell fragment and advances, and makes shell fragment be subjected to the compressing on sleeve leading portion inclined-plane and is out of shape, accumulation elasticity potential energy, when releasing in this elasticity potential energy, recover its original form and retract needle tubing, drive syringe needle and withdraw to sleeve inner thereafter.When this needle tubing resets back sleeve inner, form the brake hole that the lateral brake(-holder) block of needle tubing is butted on sleeve lateral wall, fixedly needle tubing is in the location.
The present invention improves the structure that adopts brake hole and brake(-holder) block, replaces traditional blood taking needle module and utilizes the spacing mode of sleeve lateral wall inner edge, can make easy to assemblyly, then can make the action of promotion needle tubing more certain effective and smooth and easy in the use.When one takes a blood sample rifle, need to use the needle tubing of striker bump blood taking needle module at installing one blood taking needle module, expose to make the blood taking needle syringe needle in the needle tubing.This striker impact site is the shock plate that is formed at this needle tubing rear.In blood taking needle module of the present invention, because spacing this needle tubing is to be reached by the structure of pulling of supporting of sleeve lateral wall brake hole and needle tubing brake(-holder) block in this telescopic function, sleeve rear inwall need not to form flange, and being overcome may be because of the crooked problem that bumps against this flange of striker direct of travel in traditional blood taking needle module.
Improvement on the aforementioned structure makes blood taking needle module of the present invention be installed in a blood sampling rifle, when performing the preparation of accepting blood sampling rifle striker bump, this shock plate is to be exposed to the striker direction of advance fully, and does not have structures such as aforementioned sleeve lining flange to cause possible obstruct betwixt.Then can make the action that promotes needle tubing more certain effective and smooth and easy, the blood taking needle syringe needle is unlikely because of thrusting degree of depth deficiency fail effectively to sting out the blood sampling wound.
Can understand concrete structure of the present invention and using method from the above mentioned, it is one easy to assembly and go out pin blood taking needle module smoothly really.
Description of drawings
Fig. 1: axonometric chart of the present invention.
Fig. 2: part exploded view of the present invention.
Fig. 3: profile of the present invention.
Fig. 4: action constructed profile of the present invention.
Fig. 5: another action constructed profile of the present invention.
Fig. 6: use sketch map of the present invention.
Fig. 7: the use constructed profile of a traditional blood taking needle module.
Fig. 8: the axonometric chart of a traditional blood taking needle module.
Drawing reference numeral:
10 sleeves, 11 back nozzles
12 inclined-planes, 13 needle outlets
14 guide grooves, 15 brake holes
20 needle tubings, 21 mouths of pipe
22 shock plates, 23 brake(-holder) blocks
24 shell fragments, 25 guiding projections
30 blood taking needles, 31 syringe needles
40 envelop pieces, 50 blood sampling rifles
51 strikers, 60 sleeves
61 back nozzle 611 flanges
62 inclined-planes, 63 needle outlets
70 needle tubings, 71 mouths of pipe
72 shock plates, 74 shell fragments
The specific embodiment
See also Fig. 1 and Fig. 2, be respectively axonometric chart of the present invention and part exploded view.
Blood taking needle module of the present invention includes a sleeve 10, a needle tubing 20, a blood taking needle 30 and an envelop piece 40; This blood taking needle 30 is located in this needle tubing 20, and this envelop piece 40 is sealed in needle tubing 20 front ends, and this needle tubing 20 is located at sleeve 10 inside; Wherein this sleeve 10 is a cylindrical shell that is formed by plastics, and the end forms a back nozzle 11 thereafter, and its leading portion inwall forms two inclined-planes 12 forward, forms a thin-and-long needle outlet 13 at sleeve 10 leading sections, and sleeve 10 inwalls form two guide grooves 14 from the rear end to front end; These sleeve 10 sidewalls are formed with two brake holes 15, and brake hole 15 is the shape of an approximate ellipsoidal, and its long axis direction is axially identical with sleeve 10; This needle tubing 20 is a hollow body with plastics formation, is arranged in this sleeve 10 inside; These needle tubing 20 leading sections form a mouth of pipe 21, and its rear end is combined with one and is matched with the aforementioned shock plate 22 of nozzle 11 internal diameters afterwards, and shock plate 22 sides are formed with two guiding raised lines 221 corresponding to sleeve 10 inwall guide grooves 14; These needle tubing 20 sides are formed with two brake(-holder) blocks 23 that are butted on sleeve 10 sidewall brake holes 15, two shell fragments 24 that are butted on sleeve 10 leading portion inclined-planes 12 and corresponding to the guiding projection 25 of sleeve 10 inwall guide grooves 14; This blood taking needle 30 is fixedly arranged on this needle tubing 20 inside, and its syringe needle 31 stretches out this needle tubing 20 mouths of pipe 21; This envelop piece 40 is sealed in this needle tubing 20 mouths of pipe 21 and is entangled syringe needle 31, and these needle tubing 20 mouths of pipe 21 extend outside sleeve 10 needle outlets 13 certainly, stretches out sleeve 10 outer parts and forms tabular.
Aforementioned lateral two shell fragments 24 of needle tubing 20 that are formed at are for from the outside forward open lamellar body in needle tubing 20 sides, and its open amplitude is matched with this sleeve 10 internal diameters; 23 of aforementioned two brake(-holder) blocks are from the outside backward open lamellar body in needle tubing 20 sides, and its open amplitude is greater than these sleeve 10 internal diameters; Aforementioned two guiding projections 25 are for being incorporated into needle tubing 20 lateral cuboids, and its end shape is matched with the guide groove 14 of aforementioned sleeve 10.
Please consult Fig. 3 again, be profile of the present invention.In the guide groove 14 of guiding raised line 221 that the guiding projection 25 that these needle tubing 20 sides form and shock plate 22 sides of this needle tubing 20 form, pind down by these guide groove 14 guiding to make the displacement of this needle tubing 20 in this sleeve 10 corresponding to the formation of sleeve 10 inwalls.
Aforementioned this blood taking needle 30 is to be fixedly arranged on needle tubing 20 inside with embedded type injection molding or other manufacture, its syringe needle 31 stretches out needle tubing 20 mouths of pipe 21, and this envelop piece 40 is after syringe needle 31 is finished sterilization, under the situation of gnotobasis, be incorporated into this needle tubing 20 mouths of pipe 21, or under gnotobasis and blood taking needle 30 syringe needles 31 after the integrally formed embeddings sterilization of needle tubing 20.Only under integrally formed situation, this envelop piece 40 forms fragile binding coated state with the intersection of these needle tubing 20 mouths of pipe 21, so that can remove this envelop piece 40 to expose syringe needle 31 through reversing when using.
See also Fig. 4 and Fig. 5, be respectively action constructed profile of the present invention.When making up blood taking needle module of the present invention, be that this needle tubing 20 that is combined with blood taking needle 30 and envelop piece 40 is inserted sleeves 10 back nozzles 11 from envelop piece 40.The guide groove 14 that will guide projection 25 and shock plate 22 lateral guiding raised lines 221 to aim at these sleeve 10 inwalls during insertion inserts; And when being inserted into stroke and proceeding to this brake(-holder) block 23, because the outer Zhang Fangxiang of this brake(-holder) block 23 outwards opens backward, promote this needle tubing 20 when making it to inject this sleeve 10 in the lasting application of force, this brake(-holder) block 23 will be subjected to the restriction of back nozzle 11 and inwardly shrink back, continue to advance to the brake hole 15 that 23 pairs of its brake(-holder) blocks should sleeve 10 in this needle tubing 20, this brake(-holder) block 23 also recovers open sample attitude in this place.This moment since these brake(-holder) block 23 open degree greater than sleeve 10 internal diameters, the end of this brake(-holder) block 23 is butted on this brake hole 15, to limit this needle tubing 20 in this sleeve 10.
Please consult Fig. 6 again, be use sketch map of the present invention.Blood taking needle module of the present invention is to be installed in one to include on the blood sampling rifle 50 of a striker 51 in use.User is held envelop piece 40 front ends and is formed tabular place, reverse to make it separate with needle tubing 20 mouths of pipe 21.After user was removed envelop piece 40, the syringe needle 31 of this blood taking needle 30 promptly exposed outside the mouth of pipe 21 of needle tubing 20, but the syringe needle 31 of this blood taking needle 30 still is positioned among this sleeve 10.
Aim at desire with the needle outlet 13 of this sleeve 10 and form the blood sampling wound this moment, clash into the shock plate 22 of these needle tubings 20 with the striker 51 of blood sampling rifle 50, can make this needle tubing 20 with the syringe needle 31 that has exposed to front slide, syringe needle 31 is ejected outside needle outlet 13, and stings out the blood sampling wound; Being formed at needle tubing 20 lateral shell fragments 24 is subjected to the compressing on inclined-plane 12 and inwardly shrinks back accumulation elasticity potential energy in forward stroke; After syringe needle 31 stung out the blood sampling wound, shell fragment 24 discharged the elasticity potential energy and retracts needle tubing 20, makes syringe needle 31 reset and gets back to sleeve 10 inside.
Can understand concrete structure of the present invention and using method from the above mentioned, it really can provide one easy to assembly and go out pin blood taking needle module smoothly.
Though the present invention discloses with specific embodiment; but it is not in order to limit the present invention; any those skilled in the art; the displacement of the equivalent assemblies of under the prerequisite that does not break away from design of the present invention and scope, having done; or, all should still belong to the category that this patent is contained according to equivalent variations and modification that scope of patent protection of the present invention is done.
Claims (9)
1. a blood taking needle module is characterized in that: include a sleeve, a needle tubing and a blood taking needle; Wherein:
This sleeve is a cylindrical shell, and the end forms a back nozzle thereafter, and its leading portion inwall is restrained forward and formed at least one inclined-plane, forms a needle outlet in barrel forward end portion;
This sleeve lateral wall is formed with at least one brake hole;
This needle tubing is a hollow body, is arranged in this sleeve inner; The needle tubing leading section forms a mouth of pipe again, and its rear end is combined with a shock plate, and the external diameter of this shock plate is matched with the internal diameter of back nozzle; This needle tubing side forms at least one brake(-holder) block and at least one shell fragment that is butted on sleeve leading portion inclined-plane that is butted on the sleeve lateral wall brake hole;
This blood taking needle is fixedly arranged on this needle tubing inside, and its syringe needle stretches out this needle tubing mouth of pipe.
2. blood taking needle module as claimed in claim 1 is characterized in that: this sleeve lateral wall is formed with two brake holes; This needle tubing side formation two is butted on the brake(-holder) block of sleeve lateral wall brake hole.
3. blood taking needle module as claimed in claim 2 is characterized in that: this sleeve leading portion inwall is restrained forward and is formed two inclined-planes; This needle tubing side formation two is butted on the shell fragment on this inclined-plane.
4. blood taking needle module as claimed in claim 1 is characterized in that: this needle tubing side forms at least one guiding projection, and this sleeve lining is formed with at least one axial guide groove from the rear end to front end; This guiding projection is corresponding to this guide groove.
5. blood taking needle module as claimed in claim 4 is characterized in that: the shock plate side of this needle tubing forms at least one guiding raised line; This guiding raised line is corresponding to this guide groove.
6. blood taking needle module as claimed in claim 4 is characterized in that: this needle tubing side forms two guiding projections, and the shock plate side of needle tubing forms two guiding raised lines, and this sleeve lining is formed with two axial guide grooves from the rear end to front end; This guiding projection and guiding raised line are corresponding to this guide groove.
7. as each described blood taking needle module of claim 1 to 6, it is characterized in that: this brake(-holder) block is the outside backward open lamellar body from the needle tubing side.
8. as each described blood taking needle module of claim 1 to 6, it is characterized in that: this shell fragment is the outside forward open lamellar body from the needle tubing side.
9. as each described blood taking needle module of claim 1 to 6, it is characterized in that: this syringe needle is by envelop piece institute fit, and this envelop piece extends outside the telescopic needle outlet from this needle tubing mouth of pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100585646A CN100446725C (en) | 2006-03-16 | 2006-03-16 | Blood taking needle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100585646A CN100446725C (en) | 2006-03-16 | 2006-03-16 | Blood taking needle assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101036580A CN101036580A (en) | 2007-09-19 |
| CN100446725C true CN100446725C (en) | 2008-12-31 |
Family
ID=38887903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100585646A Expired - Fee Related CN100446725C (en) | 2006-03-16 | 2006-03-16 | Blood taking needle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100446725C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7806859B2 (en) | 2008-01-24 | 2010-10-05 | Eumed Biotechnology Co., Ltd. | Safety lancet for taking blood |
| DE602008005703D1 (en) * | 2008-02-02 | 2011-05-05 | Eumed Biotechnology Co Ltd | Safety lancet for taking blood |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5314442A (en) * | 1992-10-26 | 1994-05-24 | Apls Co., Ltd. | Blood collecting apparatus |
| EP0633004A1 (en) * | 1993-07-08 | 1995-01-11 | Apls Co., Ltd. | Safety container for disposal of a lancet assembly |
| CN1695554A (en) * | 2004-05-14 | 2005-11-16 | 惠碁生物科技股份有限公司 | Safety hemostix |
-
2006
- 2006-03-16 CN CNB2006100585646A patent/CN100446725C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5314442A (en) * | 1992-10-26 | 1994-05-24 | Apls Co., Ltd. | Blood collecting apparatus |
| EP0633004A1 (en) * | 1993-07-08 | 1995-01-11 | Apls Co., Ltd. | Safety container for disposal of a lancet assembly |
| CN1695554A (en) * | 2004-05-14 | 2005-11-16 | 惠碁生物科技股份有限公司 | Safety hemostix |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101036580A (en) | 2007-09-19 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20081231 Termination date: 20150316 |
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| EXPY | Termination of patent right or utility model |