CN103190921B - Disposable safe blood taking needle - Google Patents
Disposable safe blood taking needle Download PDFInfo
- Publication number
- CN103190921B CN103190921B CN201310139965.4A CN201310139965A CN103190921B CN 103190921 B CN103190921 B CN 103190921B CN 201310139965 A CN201310139965 A CN 201310139965A CN 103190921 B CN103190921 B CN 103190921B
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- needle stand
- needle
- triggering
- blood
- main body
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- 239000008280 blood Substances 0.000 title claims abstract description 45
- 210000004369 blood Anatomy 0.000 title claims abstract description 45
- 238000010241 blood sampling Methods 0.000 claims description 31
- 210000003462 vein Anatomy 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000000284 extract Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The invention relates to a disposable safe blood taking needle comprising a puncture needle, a needle seat, a spring, a shell body, a triggering springback body and an O-shaped seal ring. A needle seat assembly channel is arranged on the front portion of the shell body, and the needle seat and the spring on the needle seat are mounted in the needle seat assembly channel. A needle springback cavity is arranged on the upper portion of the triggering springback body, a blood taking channel is arranged on the lower portion of the springback body, and a blood transfusion flexible pipe is connected with the back portion of the blood taking channel. The triggering springback body is movably mounted in the shell body. The blood taking channel is opposite to the needle seat assembly channel on the shell body, and the O-shaped seal ring is arranged between the blood taking channel and a rear end hole of the needle seat. After puncture and blood taking are completed, the puncture needle can spring back into the triggering springback body automatically from the vein of a patient by pressing the triggering springback body, and the blood taking channel is simultaneously sealed. The disposable safe blood taking needle is reasonable in structure, convenient to use, safe and reliable; and puncture risk and blood leakage danger caused by exposure of the puncture needle can be avoided, and environment can be effectively protected.
Description
Technical field
The present invention relates to a kind of blood taking needle, specifically a kind of disposable use safe blood-taking needle.
Background technology
At present, the typical construction of known blood taking needle is to be assembled by protective sleeve, puncture needle, needle handle, flexible pipe, intubate needle stand, cannula needle and emulsion protecting sheath.When blood sampling, hand-held needle handle operation puncture needle punctures, and observes and has after blood back, inserts vacuum test tube and gathers blood, takes a blood sample complete, first from patient's vein, extracts puncture needle, then extracts blood taking tube, finally blood taking needle is discarded in sharp instrument disposable box.Traditional blood taking needle is extracted after puncture needle, and puncture needle can be exposed in air, thereby has increased the risk of pricking wound and the pollution risk that blood leaks outside, also easy welding after abandoning.
Summary of the invention
Technical problem to be solved by this invention is to overcome above-mentioned the deficiencies in the prior art; provide a kind of rational in infrastructure; easy to use; safe and reliable; the complete puncture needle of taking a blood sample can not be exposed in air; avoid stabbing the danger that risk and blood leak outside, and the effective disposable use safe blood-taking needle of protection of the environment.
The technical scheme that the present invention solves the problems of the technologies described above employing is: a kind of disposable use safe blood-taking needle, it is characterized in that: it is made up of puncture needle, needle stand, spring, housing main body, triggering projectile body, O RunddichtringO, puncture needle is fixed on needle stand, spring housing is in needle stand outside, described housing main body front portion is provided with needle stand assembling passage, needle stand and on spring fitting in needle stand assembling passage; Described triggering projectile body top is provided with needle stand retraction cavity, and bottom is provided with blood sampling passage, and blood sampling channel rear portion is connected with blood transfusion flexible pipe; Described triggering projectile body is movably arranged in housing main body, and its blood sampling passage is just to the needle stand assembling passage on housing main body, and blood sampling passage coordinates and is communicated with stomidium after needle stand, and O RunddichtringO is arranged on after take a blood sample passage and needle stand between stomidium.
Triggering projectile body rear outside of the present invention is provided with two symmetrical boss, and both sides, housing main body rear end are correspondingly provided with slotted eye, is connected by boss and slotted eye, triggers projectile body and is rotatably arranged in housing main body.
Before and after in needle stand assembling passage of the present invention, be provided with two annular snap platforms, described needle stand rear portion is provided with an annular boss, annular boss on needle stand coordinates location with needle stand assembling channel rear portion annular snap platform, and spring is compressed between needle stand assembling passage forward annular Ka Tai and the annular boss of needle stand.
Housing main body front end inside upper part of the present invention is provided with a triggering Ka Tai, and on the needle stand retraction cavity open front end on described triggering projectile body, edge is stuck on this triggering Ka Tai.
Blood sampling passage front end face on triggering projectile body of the present invention is provided with an annular groove, and described O RunddichtringO is inlaid in this annular groove.
When the present invention uses, hand-held housing main body is carried out routine puncture, and blood enters the blood sampling passage that triggers projectile body bottom by puncture needle, needle stand, and then flows to the cannula needle at rear portion by blood transfusion flexible pipe, enters in vacuum test tube.After blood sampling, puncture needle is still in vein, firmly press triggering projectile body downwards, the stopping of triggering Ka Tai of triggering on projectile body breakthrough housing main body moves down, fall into housing main body bottom, now, needle stand retraction cavity is just to the needle stand assembling passage on housing main body, and the spring in needle stand assembling passage drives puncture needle and needle stand to spring back to and triggers in the needle stand retraction cavity of projectile body.Meanwhile, trigger blood sampling passage and the O RunddichtringO of projectile body bottom and withstand in the front inner wall of housing main body, by the O RunddichtringO channel seal of taking a blood sample.After puncture blood collecting of the present invention, by pressing triggering projectile body, puncture needle can to triggering in projectile body and housing main body, enter sealing to blood sampling passage by automatic rebounding from patient's vein simultaneously.Against existing technologies, the present invention is rational in infrastructure, easy to use, safe and reliable, and the complete puncture needle of taking a blood sample can not be exposed in air, and that avoids puncture needle to leak outside bringing stabs the danger that risk and blood leak outside, and effective protection of the environment.Not only improve patient's comfortableness, and ensured the safe, effective of blood sampling.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is surface structure schematic diagram of the present invention.
Fig. 2 is that the present invention does not trigger cuing open of resilience state and shows schematic diagram.
Fig. 3 is that the present invention triggers cuing open of resilience state and shows schematic diagram.
Label in figure is: 1. protective sleeve, and 2. puncture needle, 3. needle stand, 4. spring, 5. housing main body, 6. O RunddichtringO, 7. triggers projectile body, 8. blood transfusion flexible pipe.31. annular boss, 51. needle stand assembling passages, 511. forward annular Ka Tai, 512. rear annular Ka Tai, 52. trigger Ka Tai, 53. slotted eyes, 71. needle stand retraction cavitys, 72. blood sampling passages, 73. boss.
Detailed description of the invention
From Fig. 1, Fig. 2, can find out, a kind of disposable use safe blood-taking needle, it is made up of puncture needle 2, needle stand 3, spring 4, housing main body 5, triggering projectile body 7, O RunddichtringO 6 etc.Described puncture needle 2 is fixed in the inner chamber of needle stand 3, and spring 4 is enclosed within needle stand 3 outsides.Puncture needle 2 outsides are also provided with protective sleeve 1, and protective sleeve 1 is assemblied in needle stand assembling passage outside on housing main body 5.
Housing main body of the present invention 5 front portions are provided with needle stand assembling passage 51, needle stand 3 and on spring 4 be arranged in needle stand assembling passage 51.Described triggering projectile body 7 tops are provided with needle stand retraction cavity 71, and bottom is provided with blood sampling passage 72, and blood sampling passage 72 rear portions are connected with blood transfusion flexible pipe 8.Blood transfusion flexible pipe 8 other ends connect conventional cannula needle and vacuum test tube.
Triggering projectile body 7 rear outside of the present invention are provided with two symmetrical boss 73, and housing main body 5 both sides, rear end are correspondingly provided with slotted eye 53, are connected by boss 73 and slotted eye 53, trigger projectile body 7 and are rotatably arranged in housing main body 5.
Before and after in needle stand assembling passage 51 of the present invention, be provided with two annular snap platforms, respectively forward annular card platform 511 and rear annular card platform 512, described needle stand 3 rear portions are provided with an annular boss 31, annular boss 31 on needle stand coordinates location with needle stand assembling channel rear portion annular snap platform 512, and spring 4 is compressed between needle stand assembling passage forward annular card platform 511 and the annular boss 31 of needle stand.
Housing main body 5 front end inside upper part of the present invention are provided with a triggering card platform 52, and on the needle stand retraction cavity 71 open front ends on described triggering projectile body 7, edge is stuck on this triggering card platform 52.
Blood sampling passage 72 front end faces on triggering projectile body 7 of the present invention are provided with an annular groove, and described O RunddichtringO 6 is inlaid in this annular groove.
Triggering projectile body 7 of the present invention is movably arranged in housing main body 5, and triggering projectile body 7 opposite shell main bodys 5 has two duties.The one, do not trigger resilience state, another is to trigger resilience state.
Fig. 2 is that the present invention does not trigger cuing open of resilience state and shows schematic diagram.Described needle stand 3 and on spring 4 be arranged in needle stand assembling passage 51, spring 4 is in compressive state.Blood sampling passage 72 on described triggering projectile body 7 is just to the needle stand assembling passage 51 on housing main body 5, and blood sampling passage 72 coordinates and is communicated with the rear stomidium of needle stand 3, and O RunddichtringO 6 is arranged between blood sampling passage 72 and the rear stomidium of needle stand 3.
Fig. 3 is that the present invention triggers cuing open of resilience state and shows schematic diagram.Now, trigger projectile body 7 and fall into housing main body 5 bottoms, needle stand retraction cavity 71 is just to the needle stand assembling passage 51 on housing main body, and the spring in needle stand assembling passage drives puncture needle and needle stand to spring back to and triggers in the needle stand retraction cavity of projectile body.Meanwhile, trigger blood sampling passage and the O RunddichtringO of projectile body bottom and withstand in the front inner wall of housing main body, by the O RunddichtringO channel seal of taking a blood sample.
When the present invention uses; first remove protective sleeve 1; then hand-held housing main body 5 drives puncture needle 2 to carry out routine puncture to patient; blood enters the blood sampling passage 72 that triggers projectile body bottom by puncture needle 2, needle stand 3; and then flow to the cannula needle at rear portion by blood transfusion flexible pipe 8, enter in vacuum test tube.When blood sampling, puncture needle 2, needle stand 3, O type circle 6, triggering projectile body 7, blood transfusion flexible pipe 8 and conventional cannula needle have formed fluid passage jointly, and blood enters in vacuum test tube by fluid passage.After blood sampling, puncture needle 2 still, in vein, is firmly pressed downwards and is triggered projectile body 7, and the stopping of triggering card platform 52 that triggering projectile body 7 is broken through on housing main body 5 moves down, and falls into housing main body 5 bottoms, as shown in Figure 3.Now, needle stand retraction cavity 71 is just to the needle stand assembling passage 51 on housing main body, and the spring 4 in needle stand assembling passage 51 drives puncture needle 2 and needle stand 3 to spring back to and triggers in the needle stand retraction cavity 71 of projectile body 7.Meanwhile, trigger blood sampling passage 72 and the O RunddichtringO 6 of projectile body 7 bottoms and withstand in the front inner wall of housing main body 5, by O RunddichtringO 6 channel seal of taking a blood sample.
After puncture blood collecting of the present invention, by pressing triggering projectile body, puncture needle can to triggering in projectile body and housing main body, enter sealing to blood sampling passage by automatic rebounding from patient's vein simultaneously.It is rational in infrastructure, easy to use, safe and reliable, and the complete puncture needle of taking a blood sample can not be exposed in air, and that avoids puncture needle to leak outside bringing stabs the danger that risk and blood leak outside, and effective protection of the environment.Not only improve patient's comfortableness, and ensured the safe, effective of blood sampling.
Claims (4)
1. a disposable use safe blood-taking needle, it is provided with puncture needle, needle stand, spring, housing main body, triggering projectile body, described puncture needle is fixed on needle stand, spring housing is in needle stand outside, described housing main body front portion is provided with needle stand assembling passage, needle stand and on spring fitting in needle stand assembling passage; Described triggering projectile body is movably arranged in housing main body, and its top is provided with needle stand retraction cavity, and bottom is provided with blood sampling passage, and blood sampling channel rear portion is connected with blood transfusion flexible pipe; It is characterized in that: described blood sampling passage front end face is provided with an annular groove setting-in one O RunddichtringO in this annular groove; Triggering projectile body in the time not triggering resilience state, described blood sampling passage is just to the needle stand assembling passage on housing main body, and blood sampling passage coordinates and is communicated with stomidium after needle stand, and O RunddichtringO is located at after take a blood sample passage and needle stand between stomidium; Triggering projectile body in the time triggering resilience state, described needle stand retraction cavity is just to the needle stand assembling passage on housing main body, spring in needle stand assembling passage drives puncture needle and needle stand to spring back in needle stand retraction cavity, described blood sampling passage and O RunddichtringO withstand in the front inner wall of housing main body, by the O RunddichtringO channel seal of taking a blood sample.
2. disposable use safe blood-taking needle according to claim 1, it is characterized in that: described triggering projectile body rear outside is provided with two symmetrical boss, both sides, housing main body rear end are correspondingly provided with slotted eye, be connected by boss and slotted eye, trigger projectile body and be rotatably arranged in housing main body.
3. disposable use safe blood-taking needle according to claim 1, it is characterized in that: before and after in described needle stand assembling passage, be provided with two annular snap platforms, described needle stand rear portion is provided with an annular boss, annular boss on needle stand coordinates location with needle stand assembling channel rear portion annular snap platform, and spring is compressed between needle stand assembling passage forward annular Ka Tai and the annular boss of needle stand.
4. disposable use safe blood-taking needle according to claim 1, is characterized in that: described housing main body front end inside upper part is provided with a triggering Ka Tai, and on the needle stand retraction cavity open front end on described triggering projectile body, edge is stuck on this triggering Ka Tai.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310139965.4A CN103190921B (en) | 2013-04-22 | 2013-04-22 | Disposable safe blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310139965.4A CN103190921B (en) | 2013-04-22 | 2013-04-22 | Disposable safe blood taking needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103190921A CN103190921A (en) | 2013-07-10 |
| CN103190921B true CN103190921B (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310139965.4A Active CN103190921B (en) | 2013-04-22 | 2013-04-22 | Disposable safe blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103190921B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106691470A (en) * | 2017-01-09 | 2017-05-24 | 济南大学 | Endoscope vein blood taking needle set and using method thereof |
| CN107041757A (en) * | 2017-05-03 | 2017-08-15 | 柴广云 | A kind of needle holder suitable for blood taking needle |
| CN107041756A (en) * | 2017-05-03 | 2017-08-15 | 柴广云 | A kind of novel blood sampling equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5318584A (en) * | 1992-04-13 | 1994-06-07 | Boehringer Mannheim Gmbh | Blood lancet device for withdrawing blood for diagnostic purposes |
| JPH10192262A (en) * | 1996-12-29 | 1998-07-28 | Misawa Ika Kogyo Kk | Disposable pricker |
| CN1586396A (en) * | 2004-09-15 | 2005-03-02 | 施迎敢 | Needle tip drawing back type disposable safety blood taking needle and disposable ejection type safety blood taking pen |
| CN202497155U (en) * | 2011-12-06 | 2012-10-24 | 张亚平 | Improved pen-type safe blood taking needle |
| CN202821371U (en) * | 2012-09-26 | 2013-03-27 | 淮安市天达医疗器械有限公司 | Disposable self-retraction type safe blood taking needle |
| CN203169194U (en) * | 2013-04-22 | 2013-09-04 | 威海洁瑞医用制品有限公司 | Disposable safe blood collection needle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060079807A1 (en) * | 2004-10-12 | 2006-04-13 | Allard Edward F | Blood collecting syringe with retractable needle |
-
2013
- 2013-04-22 CN CN201310139965.4A patent/CN103190921B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5318584A (en) * | 1992-04-13 | 1994-06-07 | Boehringer Mannheim Gmbh | Blood lancet device for withdrawing blood for diagnostic purposes |
| JPH10192262A (en) * | 1996-12-29 | 1998-07-28 | Misawa Ika Kogyo Kk | Disposable pricker |
| CN1586396A (en) * | 2004-09-15 | 2005-03-02 | 施迎敢 | Needle tip drawing back type disposable safety blood taking needle and disposable ejection type safety blood taking pen |
| CN202497155U (en) * | 2011-12-06 | 2012-10-24 | 张亚平 | Improved pen-type safe blood taking needle |
| CN202821371U (en) * | 2012-09-26 | 2013-03-27 | 淮安市天达医疗器械有限公司 | Disposable self-retraction type safe blood taking needle |
| CN203169194U (en) * | 2013-04-22 | 2013-09-04 | 威海洁瑞医用制品有限公司 | Disposable safe blood collection needle |
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| Publication number | Publication date |
|---|---|
| CN103190921A (en) | 2013-07-10 |
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