CN104783815A - Blood collection three-way connector and blood collector - Google Patents
Blood collection three-way connector and blood collector Download PDFInfo
- Publication number
- CN104783815A CN104783815A CN201510222095.6A CN201510222095A CN104783815A CN 104783815 A CN104783815 A CN 104783815A CN 201510222095 A CN201510222095 A CN 201510222095A CN 104783815 A CN104783815 A CN 104783815A
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- blood
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
- A61B5/154—Devices using pre-evacuated means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M39/105—Multi-channel connectors or couplings, e.g. for connecting multi-lumen tubes
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a blood collection three-way connector and a blood collector. The blood collection three-way connector comprises a three-way needle seat, a blood collection needle tube, a blood discharge needle and an air exhaust needle. The blood discharge needle is communicated with a blood discharge needle port and communicated with the blood collection needle tube through a blood inlet hole. The air exhaust needle is communicated with an air exhaust needle port. The three-way needle seat is provided with an exhaust hole, one end of the exhaust hole is communicated with the air exhaust needle, and the other end of the exhaust hole is connected with an air exhaust device of the blood collector. A needle head of the blood collection needle tube is inserted into the vein of a human body, the blood discharge needle and the air exhaust needle are both inserted into a blood collection tube, the air exhaust device of the blood collector works to suck out air in the blood collection tube through the air exhaust needle and the exhaust hole, instant negative pressure is formed in the blood collection tube, and then blood flows into the blood collection tube through the blood collection needle tube, the blood inlet hole and the blood discharge needle until a required amount of blood is sucked out, and finally the blood discharge needle and the air exhaust needle are pulled out. In this way, the blood collection volume can be accurately controlled by forming the instant negative pressure in the blood collection tube without performing the negative pressure in the blood collection tube, the production cost is lowered, the rejection rate of the blood collection tube is reduced, and the blood collection three-way connector is more reliable in use.
Description
Technical field
The present invention relates to technical field of medical instruments, especially, relate to a kind of blood sampling three way cock and hemostix.
Background technology
In existing blood collection procedure, employing be by blood taking needle one end insert human vein, the other end insert be prefixed in the blood taking tube of negative pressure, due to the suction function of blood taking tube, blood flows in blood taking tube automatically.But, the blood taking tube of preset negative pressure accurately cannot control blood sampling volume when taking a blood sample, and blood taking tube is necessary preset negative pressure before the use, adds production cost, and there is the risk releasing negative pressure in the blood taking tube of preset negative pressure, cause the percent defective of blood taking tube high in transport or moving process.
Summary of the invention
The invention provides a kind of blood sampling three way cock and hemostix, need preset negative pressure to solve existing blood taking tube, cause production cost high, the technical problem that percent defective is high.
The technical solution used in the present invention is as follows:
A kind of blood sampling three way cock, comprising:
Threeway needle stand;
Blood-collecting needle tube, with the blood sampling orifice of threeway needle stand;
All insert the row's blood pin in blood taking tube and pin of bleeding, row's blood pin is communicated with row's blood needle interface of threeway needle stand, and passes through blood receiving hole and the blood-collecting needle tube conducting of threeway needle stand, and pin of bleeding is communicated with the needle interface of bleeding of threeway needle stand;
Threeway needle stand offers one end and bleeds that pin is communicated with, the steam vent of the other end for being connected with the air extractor of hemostix.
Further, elasticity hemostasia sleeve blood needle interface being provided with and establishing row's blood pin for cover is arranged.
Further, row's blood needle interface is step-like with needle interface of bleeding, and the height of row's blood needle interface is greater than the height of needle interface of bleeding.
Further, row blood pin one end is inserted in the perforate of row's blood needle interface, and pin one end of bleeding is inserted in bleeds in the perforate of needle interface, and row's blood pin is set up in parallel with pin of bleeding.
Further, arranging blood pin with the spacing of pin of bleeding is 3mm ~ 3.5mm.
Further, the outer wall of blood sampling interface is formed with the compression inclined-plane coordinated with blood-collecting needle tube inwall.
Further, threeway needle stand be formed for by blood sampling three way cock location and installation in the positioning table of hemostix.
Further, positioning table offers for the stopper slot of spacing blood sampling three way cock on hemostix.
Further, steam vent is vertical with blood receiving hole is arranged.
According to a further aspect in the invention, additionally provide a kind of hemostix, comprise above-mentioned blood sampling three way cock.
The present invention has following beneficial effect:
1, according to blood sampling three way cock of the present invention, by the blood sampling orifice of blood-collecting needle tube and threeway needle stand, row's blood pin is communicated with row's blood needle interface of threeway needle stand, pin of bleeding is communicated with the needle interface of bleeding of threeway needle stand, row's blood pin passes through blood receiving hole and the blood-collecting needle tube conducting of threeway needle stand, steam vent one end of threeway needle stand is communicated with pin of bleeding, and the other end is connected with the air extractor of hemostix.In use, the syringe needle of blood-collecting needle tube is inserted human vein, row's blood pin and pin of bleeding all are inserted in blood taking tube, the air extractor work of hemostix, gas in blood taking tube is extracted out by bleed pin and steam vent, make to form instant negative pressure in blood taking tube, thus blood passes through blood-collecting needle tube, blood receiving hole and row's blood pin flow in blood taking tube, until extract needed for blood sampling volume after, the row's of extracting blood pin and pin of bleeding, test item as several in needs, then repeat row's blood pin to insert in corresponding blood taking tube with pin of bleeding to take a blood sample, after exhausting all test items, extract the syringe needle of blood-collecting needle tube.So, by forming instant negative pressure to blood taking tube, be convenient to accurately control blood sampling volume, and without the need to the preset negative pressure of blood taking tube, decrease production cost, reduce the percent defective of blood taking tube, use more reliable.
2, according to hemostix of the present invention, adopt above-mentioned blood sampling three way cock, by forming instant negative pressure to blood taking tube, be convenient to accurately control blood sampling volume, and without the need to the preset negative pressure of blood taking tube, decrease production cost, reduce the percent defective of blood taking tube, use more reliable.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of preferred embodiment of the present invention blood sampling three way cock; And
Fig. 2 is the structural representation of the threeway needle stand in Fig. 1.
Description of reference numerals:
10, threeway needle stand; 110, blood sampling interface; 112, inclined-plane is compressed; 120, blood needle interface is arranged; 130, to bleed needle interface; 140, blood receiving hole; 150, steam vent; 160, positioning table; 162, stopper slot;
20, blood-collecting needle tube; 30, blood pin is arranged; 40, to bleed pin; 50, elasticity hemostasia sleeve.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
With reference to Fig. 1, the preferred embodiments of the present invention provide a kind of blood sampling three way cock, blood sampling three way cock comprises threeway needle stand 10, blood-collecting needle tube 20, row's blood pin 30 and pin 40 of bleeding, blood-collecting needle tube 20 is communicated with the blood sampling interface 110 of threeway needle stand 10, row's blood pin 30 all inserts in blood taking tube with pin 40 of bleeding, row's blood pin 30 is communicated with row's blood needle interface 120 of threeway needle stand 10, and pass through blood receiving hole 140 and blood-collecting needle tube 20 conducting of threeway needle stand 10, pin 40 of bleeding is communicated with the needle interface 130 of bleeding of threeway needle stand 10, threeway needle stand 10 offers one end and is communicated with pin 40 of bleeding, the other end is used for the steam vent 150 be connected with the air extractor of hemostix.In use, the syringe needle of blood-collecting needle tube 20 is inserted human vein, row's blood pin 30 and pin 40 of bleeding all are inserted in blood taking tube, the air extractor work of hemostix, gas in blood taking tube is extracted out with steam vent 150 by pin 40 of bleeding, make to form instant negative pressure in blood taking tube, thus blood is by blood-collecting needle tube 20, blood receiving hole 140 and row's blood pin 30 flow in blood taking tube, until extract needed for blood sampling volume after, the row's of extracting blood pin 30 and pin 40 of bleeding, test item as several in needs, then repeat row's blood pin 30 to insert in corresponding blood taking tube with pin 40 of bleeding to take a blood sample, after exhausting all test items, extract the syringe needle of blood-collecting needle tube 20.So, by forming instant negative pressure to blood taking tube, be convenient to accurately control blood sampling volume, and without the need to the preset negative pressure of blood taking tube, decrease production cost, reduce the percent defective of blood taking tube, use more reliable.
Consult Fig. 1, in the preferred embodiment, alternatively, row's blood needle interface 120 can be provided with the elasticity hemostasia sleeve 50 establishing row's blood pin 30 for cover, when arranging blood pin 30 without the need to transmitting blood, elasticity hemostasia sleeve 50 plays a part to prevent blood outflow to row's blood pin 30.Particularly, elasticity hemostasia sleeve 50 adopts elastomeric material to make, as rubber etc., in use, when row's blood pin 30 is inserted in blood taking tube, the concrete resiliency compressible of elasticity hemostasia sleeve 50, thus without the need to being taken off by elasticity hemostasia sleeve 50, elasticity hemostasia sleeve 50 is outside at blood taking tube by the plug of blood taking tube gear, in time taking a blood sample complete, row's blood pin 30 is extracted from blood taking tube, and elasticity hemostasia sleeve 50 just can the row's of encasing blood pin 30 again automatically, reliably easy-to-use.Alternatively, row's blood needle interface 120 and needle interface 130 of bleeding are in step-like, and the height of row's blood needle interface 120 is greater than the height of needle interface 130 of bleeding.So, row's blood needle interface 120 can protrude a part, to install elasticity hemostasia sleeve 50 on row's blood needle interface 120.
Consult Fig. 1, in the preferred embodiment, alternatively, row blood pin 30 one end is inserted in the perforate of row's blood needle interface 120, and pin 40 one end of bleeding is inserted in bleeds in the perforate of needle interface 130, and row's blood pin 30 is set up in parallel with pin 40 of bleeding.So, be convenient to row's blood pin 30 and pin 40 of bleeding to insert in blood taking tube simultaneously.Particularly, seal by viscose glue between the perforate of row's blood pin 30 and row's blood needle interface 120, also seal by viscose glue between the perforate of bleed pin 40 and needle interface 130 of bleeding.Alternatively, if row's blood pin 30 is too large with the spacing of pin 40 of bleeding, the restriction being subject to blood taking tube internal diameter then cannot insert blood taking tube with pin 40 of bleeding by the row's of guarantee blood pin 30 simultaneously.If row's blood pin 30 is too little with the spacing of pin 40 of bleeding, then frayed when easily causing elasticity hemostasia sleeve 50 to compress.Therefore row's blood pin 30 is rationally set to 3mm ~ 3.5mm with the spacing of pin 40 of bleeding.
Consult Fig. 1 and Fig. 2, in the preferred embodiment, alternatively, the outer wall of blood sampling interface 110 is formed with the compression inclined-plane 112 coordinated with blood-collecting needle tube 20 inwall.In use, blood-collecting needle tube 20 inwall is compressed with the compression inclined-plane 112 of blood sampling interface 110 and keeps sealing, after exhausting all inspection items, the syringe needle of blood-collecting needle tube 20 is extracted from human body, blood sampling three way cock take out from hemostix, so that the blood sampling three way cock more renewed draws blood to other people.For ensureing safety, blood sampling three way cock is disposable products, the different blood sampling three way cock needing use new per capita.
Consult Fig. 1 and Fig. 2, in the preferred embodiment, alternatively, threeway needle stand 10 be formed for by blood sampling three way cock location and installation in the positioning table 160 of hemostix.Blood sampling three way cock passes through positioning table 160 location and installation on hemostix, play location and guide effect, when utilizing hemostix to drive row's blood pin 30 and pin 40 of bleeding insert or extract blood taking tube, pulling force when positioning table 160 bears pressure when row's blood pin 30 and pin 40 of bleeding being inserted blood taking tube and extracts blood taking tube, positioning table 160 also can play positioning action when automatic assembling syringe needle in enormous quantities etc.Alternatively, positioning table 160 offers for the stopper slot 162 of spacing blood sampling three way cock on hemostix, utilizes stopper slot 162 to realize blood sampling three way cock limit mounting in hemostix, reliably easy.Particularly, hemostix corresponds to stopper slot 162 place can arrange elastic steel ball, and stopper slot 162 coordinates with elastic steel ball, realizes the spacing of three way cock of taking a blood sample.
Consult Fig. 1, in the preferred embodiment, alternatively, steam vent 150 is vertical with blood receiving hole 140 to be arranged.Effectively prevent airflow pipeline and transducer potector juxtaposition, safe and reliable.Certainly, steam vent 150 and blood receiving hole 140 also can be arranged in other angles.Steam vent 150 place external diameter can be arranged in the conical surface, to fit tightly with the suction interface of the air extractor of hemostix.Specific in the present embodiment, blood-collecting needle tube 20, blood receiving hole 140 form linear transducer potector with row's blood pin 30, and bleed pin 40 and steam vent 150 form the airflow pipeline of L-type.
With reference to Fig. 1, the present invention additionally provides a kind of hemostix on the other hand, comprises above-mentioned blood sampling three way cock.The air extractor of hemostix is connected with the steam vent 150 of blood sampling three way cock, to extract the gas in blood taking tube, make to form instant negative pressure in blood taking tube, be convenient to accurately control blood sampling volume, and without the need to the preset negative pressure of blood taking tube, decrease production cost, reduce the percent defective of blood taking tube, use more reliable.Particularly, hemostix can select automatic blood sampling instrument, namely row's blood pin 30 and pin 40 of bleeding can insert in blood taking tube by automatic traction blood sampling three-way interface by hemostix, when the watch-dog monitoring blood sampling volume of hemostix reaches aequum, hemostix drives row's blood pin 30 and pin 40 of bleeding to extract blood taking tube, improves blood drawing efficiency.Air extractor can adopt air pump.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
According to blood sampling three way cock of the present invention and hemostix, in use, the syringe needle of blood-collecting needle tube 20 is inserted human vein, row's blood pin 30 and pin 40 of bleeding all are inserted in blood taking tube, the air extractor work of hemostix, gas in blood taking tube is extracted out with steam vent 150 by pin 40 of bleeding, make to form instant negative pressure in blood taking tube, thus blood is by blood-collecting needle tube 20, blood receiving hole 140 and row's blood pin 30 flow in blood taking tube, until extract needed for blood sampling volume after, the row's of extracting blood pin 30 and pin 40 of bleeding, test item as several in needs, then repeat row's blood pin 30 to insert in corresponding blood taking tube with pin 40 of bleeding to take a blood sample, after exhausting all test items, extract the syringe needle of blood-collecting needle tube 20.So, by forming instant negative pressure to blood taking tube, be convenient to accurately control blood sampling volume, and without the need to the preset negative pressure of blood taking tube, decrease production cost, reduce the percent defective of blood taking tube, use more reliable.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. take a blood sample a three way cock, it is characterized in that, comprising:
Threeway needle stand (10);
Blood-collecting needle tube (20), is communicated with the blood sampling interface (110) of described threeway needle stand (10);
All insert the row's blood pin (30) in blood taking tube and pin of bleeding (40), described row's blood pin (30) is communicated with row's blood needle interface (120) of described threeway needle stand (10), and by the blood receiving hole (140) of described threeway needle stand (10) and described blood-collecting needle tube (20) conducting, described in pin (40) of bleeding be communicated with the needle interface of bleeding (130) of described threeway needle stand (10);
Described threeway needle stand (10) offers that one end is communicated with described pin of bleeding (40), the other end is used for the steam vent (150) that is connected with the air extractor of hemostix.
2. blood sampling three way cock according to claim 1, is characterized in that,
Described row's blood needle interface (120) is provided with the elasticity hemostasia sleeve (50) establishing described row's blood pin (30) for cover.
3. blood sampling three way cock according to claim 2, is characterized in that,
Described row's blood needle interface (120) and described needle interface of bleeding (130) in step-like, and the height of described row's blood needle interface (120) be greater than described in bleed the height of needle interface (130).
4. blood sampling three way cock according to claim 1, is characterized in that,
Described row's blood pin (30) one end is inserted in the perforate of described row's blood needle interface (120), bleed in the perforate of needle interface (130) described in described pin of bleeding (40) one end is inserted in, described row's blood pin (30) and described pin of bleeding (40) are set up in parallel.
5. blood sampling three way cock according to claim 1, is characterized in that,
Described row's blood pin (30) is 3mm ~ 3.5mm with the spacing of described pin of bleeding (40).
6. blood sampling three way cock according to claim 1, is characterized in that,
The outer wall of described blood sampling interface (110) is formed with the compression inclined-plane (112) coordinated with described blood-collecting needle tube (20) inwall.
7. blood sampling three way cock according to claim 1, is characterized in that,
Described threeway needle stand (10) be formed for by described blood sampling three way cock location and installation in the positioning table (160) of described hemostix.
8. blood sampling three way cock according to claim 7, is characterized in that,
Described positioning table (160) offers for the spacing described blood sampling stopper slot of three way cock on described hemostix (162).
9. the blood sampling three way cock according to claim 1 ~ 8 any one, is characterized in that,
Described steam vent (150) is vertical with described blood receiving hole (140) to be arranged.
10. a hemostix, is characterized in that, comprises the three way cock that takes a blood sample as claimed in any one of claims 1 to 9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510222095.6A CN104783815A (en) | 2015-05-05 | 2015-05-05 | Blood collection three-way connector and blood collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510222095.6A CN104783815A (en) | 2015-05-05 | 2015-05-05 | Blood collection three-way connector and blood collector |
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| CN104783815A true CN104783815A (en) | 2015-07-22 |
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| CN201510222095.6A Pending CN104783815A (en) | 2015-05-05 | 2015-05-05 | Blood collection three-way connector and blood collector |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105997105A (en) * | 2016-07-31 | 2016-10-12 | 方义飞 | Clean blood collecting instrument and clean blood collecting method and blood collecting device thereof |
| CN106137220A (en) * | 2016-07-31 | 2016-11-23 | 方义飞 | Blood collection instrument, blood collection method and hemostix thereof |
| CN106137224A (en) * | 2016-07-31 | 2016-11-23 | 方义飞 | Hemostix, blood clean acquisition method and blood clean acquisition instrument |
| CN106175793A (en) * | 2016-07-06 | 2016-12-07 | 向素行 | Blood sampling three way cock and hemostix |
| CN107212894A (en) * | 2016-07-31 | 2017-09-29 | 长沙贤正益祥机械科技有限公司 | A kind of blood collection instrument, blood collection method and its hemostix |
| CN107961021A (en) * | 2017-12-15 | 2018-04-27 | 中南大学湘雅医院 | Full-automatic hemostix and hemostix for sampling blood by using temporary negative pressure |
| WO2019090891A1 (en) * | 2017-11-09 | 2019-05-16 | 杨智伟 | Sealed blood collection device for medical blood test |
| CN110393665A (en) * | 2019-08-06 | 2019-11-01 | 河南曙光汇知康生物科技股份有限公司 | A kind of disposable blood sampling translator |
| CN113116414A (en) * | 2021-04-22 | 2021-07-16 | 任学会 | Full closed system for autologous fat filling transplantation |
| CN116115223A (en) * | 2022-12-29 | 2023-05-16 | 北京迈纳士手术机器人技术有限公司 | Needle clamping device and blood sampling equipment |
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| CN106137224A (en) * | 2016-07-31 | 2016-11-23 | 方义飞 | Hemostix, blood clean acquisition method and blood clean acquisition instrument |
| CN107212894A (en) * | 2016-07-31 | 2017-09-29 | 长沙贤正益祥机械科技有限公司 | A kind of blood collection instrument, blood collection method and its hemostix |
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| WO2019090891A1 (en) * | 2017-11-09 | 2019-05-16 | 杨智伟 | Sealed blood collection device for medical blood test |
| CN107961021A (en) * | 2017-12-15 | 2018-04-27 | 中南大学湘雅医院 | Full-automatic hemostix and hemostix for sampling blood by using temporary negative pressure |
| CN107961021B (en) * | 2017-12-15 | 2018-11-02 | 中南大学湘雅医院 | Full-automatic hemostix and hemostix for sampling blood by using temporary negative pressure |
| CN110393665A (en) * | 2019-08-06 | 2019-11-01 | 河南曙光汇知康生物科技股份有限公司 | A kind of disposable blood sampling translator |
| CN113116414A (en) * | 2021-04-22 | 2021-07-16 | 任学会 | Full closed system for autologous fat filling transplantation |
| CN116115223A (en) * | 2022-12-29 | 2023-05-16 | 北京迈纳士手术机器人技术有限公司 | Needle clamping device and blood sampling equipment |
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Application publication date: 20150722 |