CN102113887A - Instant vacuum venous blood-sampling method and special equipment - Google Patents
Instant vacuum venous blood-sampling method and special equipment Download PDFInfo
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- CN102113887A CN102113887A CN2010100135528A CN201010013552A CN102113887A CN 102113887 A CN102113887 A CN 102113887A CN 2010100135528 A CN2010100135528 A CN 2010100135528A CN 201010013552 A CN201010013552 A CN 201010013552A CN 102113887 A CN102113887 A CN 102113887A
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Abstract
The invention discloses an instant vacuum venous blood-sampling method and special equipment. A closed negative-pressure blood-sampling system is formed by a miniature variable-speed peristaltic pump, a miniature electromagnetic valve, a bidirectional blood-sampling needle, a test tube with a special test tube plug and a closed test tube rack. The instant vacuum venous blood-sampling method comprises the following steps of: inserting the test tube with a plug into the test tube rack and tightly pressing the tube plug; then, puncturing a plug-puncturing needle of the bidirectional blood-sampling needle into the test tube plug, puncturing the other end into vein, starting a peristaltic pump and forming a vacuum environment between the interior of the test tube rack and the test tube; forming a negative pressure in the test tube through an air hole of the test tube plug and pumping blood into the test tube; and adding auxiliary blood-sampling equipment so as to conveniently sample blood. The invention solves various problems existing in a vacuum blood-sampling system, has the advantages of simpleness, convenience, practicability, economy and high efficiency and is suitable for popularization and use in various big hospitals and primary healthcare departments.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, especially the venous blood collection utensil used of hospital's blood test.
The vacuum blood collection system is as totally-enclosed hemostix, and greatly amplitude improves the blood sample quality, laboratory quality control before promoting to analyze.Than medical workers' such as conventional syringe blood sampling better protection blood sampling teacher, docimaster safety, avoid the haematogenous cross infection simultaneously.Nowadays, worldwide, the vacuum blood collection system is the main flow of blood specimen collection system, China recent years has been carried out the introduction and the exploitation of vacuum blood collection system, Ministry of Public Health had been issued " collection and the processing of WS/T 225-2002 clinical chemistry test blood preparation " and " WS/T 224-2002 vacuum test tube and additive thereof " two health industry standards in 2002, had stipulated that clinical chemistry test collects blood preparation and must use the disposal vacuum blood taking tube.The vacuum blood collection system of band safety head has reduced the doctor and patient infection chance because of it has the airtight advantage of safety, has improved quality inspection.But in the clinical manipulation process, found some problems,, the present invention proposes better technical solution by analyzing and summing up prevention methods.Under the advantage situation that keeps vacuum blood collection system lock blood sampling, overcome the disadvantage of its existing system itself.
Background technology
Venous blood collection is technical operation more common in the clinical nursing activity at present.Past prolongs always uses the blood collection needle method, both wastes time and energy, and blood sample pollutes again in the tuberculosis process easily, and hemocyte can suffer to destroy and cause haemolysis, influences the accuracy of assay.The thirties in 20th century, U.S. company BD has been invented vacuum blood drawing technique.Most of developed countries generally use the vacuum blood collection system, thereby the vacuum blood collection method is used widely in the clinical vein puncture.It is the change of a venipuncture technology, has remedied many deficiencies of traditional disposable syringe blood sampling.But adopt vacuum blood collection method big time saver, avoided blood sample pollution originally, guaranteed the accurate of blood sampling volume.But it is not a very perfect technology yet, and congenital defect and some problems in the operation of still having many these technology to exist need to solve.Particular problem is as follows: (1) haemolysis is because the interior negative pressure of vacuum tube is bigger, and blood sampling is initial, and blood inflow pipe low speed degree is fast, and erythrocyte clashes into mutually to cause and breaks, and foam increases, and easily causes haemolysis.(2) there is residual negative pressure because ordinary vacuum tube uses extensively, it is bigger to set negative pressure, if the collect specimen amount is bigger with the pressure difference value of in vitro setting, last when replace tubes in vitro still can residual bigger negative pressure, the gas that causes being dissolved in the blood overflows, cause the erythrocyte swelling fracture, cause haemolysis.(3) leak blood and cause the loosening or syringe needle of the two-way blood taking needle blood sampling of blood contamination pipe end latex sheath to sting out the latex sheath, cause two-way blood taking needle poorly sealed.During venipuncture, blood spills along the pipe close puncture needle end or the seam of two-way blood taking needle.(4) can't judge whether successful bidirectional needle is judged the whether successful difficulty that punctures when puncturing no blood back in puncture, can only can judge whether puncture is successful with having blood to flow into behind operator's sensation, experience or the connection vacuum tube.If but when puncture connect vacuum tube, puncture failure causes the vacuum tube negative pressure to reduce causing waste again.Traditional blood collection needle can determine whether to puncture successfully by pumpback, and vacuum test tube can not solve by the pumpback way behind the syringe needle intravasation, so difficult during for full not good enough and minute blood vessel blood sampling.Do not seal when (5) in vitro having the not enough vacuum test tube of negative pressure or negative pressure, can not become flexible the pipe lid during use in case vacuum expendable pattern by manufacturer production.But have or not vacuum with the naked eye not discern, also can not first detector tube before clinical practice in vacuum state puncture successfully but adopt situation not hemorrhage or that blood volume is not enough after thrusting blood taking tube to get rid of useless pipe, therefore to exist.(6) blood sampling volume is can not the Autonomous Control blood preparation too much or very fewly the phenomenon that blood does not coagulate in blood coagulation in the anticoagulant tube, the coagulant pipe will take place take place.The minority blood taking tube exists quality problems to cause negative pressure deficiency or too high in the blood taking tube unavoidably.(7) test tube manufacturing cost height is in order to keep negative pressure for a long time, must good plug and the test tube of service property (quality), can not use the test tube of soft material, and cause manufacturing cost to improve.In order to overcome the problems referred to above, the inventor had once applied for " airtight negative-pressure automatic hemostix device " patent No. 99214075.7 " totally-enclosed negative pressure hemostix " patent No. 95245460 " airtight negative-pressure automatic hemostix device " number of patent application 98112817[publication number]: 1225809.It has kept the advantage of vacuum blood collector, has overcome its shortcoming, but needs to solve through still having problems after implementing: 1, manual multitube replace tubes inconvenient operation is loaded down with trivial details.2, can not extract soft test tube, cause tube wall to subside during suction.3, machine noise is big, can not speed governing.4, do not add auxiliary blood sampling apparatus, still feel inconvenience during use.
Summary of the invention
In order to overcome above problem, the present invention proposes new method, the present invention solves the method that its technical problem adopts: a kind of instant vacuum venous blood collection method, by miniature adjustable speed peristaltic pump, miniature electromagnetic valve, the two-way blood taking needle that has puncture needle and Ci Sai pin, test tube and closed test tube framed bent with special-purpose test tube plug are formed the airtight negative-pressure blood sampling system, use miniature adjustable speed peristaltic pump to bleed, make the interior subnormal ambient that forms of test tube framed bent of sealing, the small pore of the special-purpose test tube plug of negative-pressure gas process makes and in vitro forms vacuum, through two-way blood taking needle the blood suction in vitro.Set up the automatic inflation type tourniquet, set up grating automatic ration device, set up automatic replace tubes and sting plug equipment automatically, set up automatic centrifugal blood vortex mixer.It is characterized in that: described two-way blood taking needle is formed by connecting flexible catheter in the middle of blood taking needle 1, the thorn plug pin 2.The structure of special-purpose test tube plug 3 is shaped by pipe cap and Nei Sai disjunctor and forms, and the medial border that joins on pipe cap and Nei Sai and test tube leaves miniature passage 4 makes test tube 5 communicate with closed test tube framed bent 9 inside by pore.Described test tube side lower edge 3-5mm place beyond the Great Wall has an annular muscle, and the interior airtight cooperation of upper circular pore of test tube framed bent is inserted in test tube plug bottom.Described closed test tube framed bent is made up of the hollow structure of separating each other of one group of band longitudinal hole.But single test tube framed bent combination in any and replacing, top has circular pore, will be with the test tube of test tube plug to insert wherein, and circular pore is connected with test tube plug lower edge tight fit.The test tube rack bottom connects miniature electromagnetic valve 6 by the interface 7 of bleeding, and connects and composes the environment of complete airtight negative-pressure suction again by conduit and miniature peristaltic pump 8.During use the Ci Sai of two-way blood taking needle is needled in the test tube plug, blood taking needle thrusts intravenous, opens miniature peristaltic pump, and the small pore of the negative pressure that forms in the test tube rack by the test tube plug makes and in vitro be in vacuum state, and blood is drawn in vitro through blood taking needle.Set up grating automatic ration blood sampling control device, it is characterized in that in the both sides of test tube photo-electroluminescence pipe 10 and light sensor 11 being installed, different blood sampling milliliter numbers are realized by grating.Convenient for the time operation of puncturing, can set up the inflated type tourniquet, it is characterized in that arm-rest belt 17, buckle 16, conduit 18,2 pass joints 12, plastic plug 13 and electromagnetic valve 14, the micro air pump 15 of the rectangle hollow made by the medical PVC plastic material formed.Arm-rest belt passes buckle coiled circle, joins through plastic plug and 2 pass joints.Shared 2 pass joints of micro air pump and electromagnetic valve realize that arm-rest belt is disposable to arm-rest belt inflation and disappointing function.When replace tubes is operated, adopt automatic replace tubes and sting the plug mode automatically, exempted the inconvenience that the pin of will bleeding moves repeatedly on test tube.Formed by test tube rack 19, test tube 20, two-way blood taking needle 22, slide head 21, flexible catheter clip 23, thorn plug needle holder 24 and Ci Sai arm 25.It is characterized in that adopting motor realize thorn plug arm up and down and the left and right displacement of slide head.The flexible realization of employing clip clamps the clamping of two-way blood taking needle conduit and loosens.Utilize clip to block the blood taking needle needle handle.Set up centrifugal blood vortex mixer, it is characterized in that adopting direct current generator 29 to drive independent test tube rack 27 rotations by gear 28 interlocks, after blood test tube 26 was contained in insertion, motor can be realized the function of blood mixing by the mode that rotates and reverse.
Its special equipment by blood taking needle 1, thorn plug pin 2, special-purpose test tube plug 3, miniature passage 4, test tube 5, miniature electromagnetic valve 6, the interface 7 of bleeding, miniature adjustable speed peristaltic pump (available negative pressure pump replacement) 8, closed test tube framed bent 9 form structural group prejudice figure one.In addition with auxiliary blood sampling system, structural group prejudice Fig. 2,3,4,5.
Advantage of the present invention is: 1, band negative pressure inserting needle, blood back is obvious, is easy to judge the puncture situation.2, soft, hard test tube can both be taken out, and saves cost.3, the automatic puncturing pipe close, automatically replace tubes, blood sampling speed are fast, be fit to outpatient service, ward and health check-up and take a blood sample in batches.4, vacuum magnitude is adjustable, is provided with high, medium and low shelves, adapts to the blood sampling of different thicknesses blood vessel and blood viscosity.5, negative regulation, no negative pressure is not enough or the problem of not having a negative pressure takes place.6, it is residual in vitro not have a negative pressure.7, it is big to have solved vacuum test tube starting stage negative pressure, subsequently the problem that reduces gradually of negative pressure.8, adopt optics quantitative, blood sampling volume is accurate.9, adopt automatic vortex mixer, instantly mixing after blood exsomatizes has been avoided the generation of blood clotting.10, adopt disposable pneumatic tourniquet, hygienic and convenient is quick.
Description of drawings
Fig. 1 is concrete equipment of the present invention and connected mode, and Fig. 2 is a grating automatic ration sketch map.Fig. 3 is the structure of disposable air pressure tourniquet.Fig. 4 is the thorn plug and the structure of replace tubes automatically automatically.Fig. 5 is the structure of automatic blood vortex mixer.
Fig. 1, the 1st, blood taking needle, the 2nd, thorn plug pin, the 3rd, special-purpose test tube plug, the 4th, miniature passage, the 5th, test tube, the 6th, miniature electromagnetic valve, the 7th, the interface of bleeding, the 8th, miniature adjustable speed peristaltic pump (available negative pressure pump replacement), the 9th, closed test tube framed bent.
1 is connected by flexible catheter with 2.3 are installed in the top of test tube.The 4th, in the test tube plug interior plug and outside be provided with a horizontal through hole between the medicated cap.The 5th, test tube and special-purpose test tube plug are formed complete test tube.6 are bleeding between the conduit, play and close and open the gas channels effect.7 are connected with the conduit of bleeding.8 are connected with the conduit of bleeding and implement evacuation.9 engage with test tube and to form the airtight negative-pressure environment.
The specific embodiment
Operational approach: 1, test tube is installed and will be put into test tube rack with the test tube of plug, pipe cap is compressed.2, thorn plug pin is installed, will be stung the plug syringe needle and insert above the replace tubes clamp.3, start opening power, air pump work, the instrument default setting is worked in standard negative pressure key position.Thorn plug syringe needle thrusts in the test tube plug, and peristaltic pump is started working.4. the bundle arm-rest belt is enclosed within arm-rest belt on patient's arm, and tension connects conduit and joint then.Starting air-pump inflating stops to suitable size.5, puncture vessel thrusts blood collection needles in the blood vessel, sees that living blood collection needles with hand behind the blood back begins blood sampling, can select high, medium and low shelves vacuum degree according to the blood sampling practical situation.6, the blood sampling of first test tube of replace tubes finishes, and instrument clamps automatically to be extracted thorn plug pin behind the flexible catheter and move to next Guan Weizai and thrust second and in vitro continue blood drawing.7, close on blood sampling to a last test tube and finish,, push the air of closing in the switch release arm-rest belt, extract syringe needle according to the instrument prompt tone.Remained blood in the blood taking needle conduit all is recovered in vitro automatically.8, mixing blood uprightly is placed on the anticoagulation test tube in the vortex mixer, opens vortex mixer mixing blood.Instrument stops after finishing the work according to the default time automatically.
Claims (8)
1. instant vacuum venous blood collection method and special equipment, its method is: by miniature adjustable speed peristaltic pump, miniature electromagnetic valve, the two-way blood taking needle that has puncture needle and Ci Sai pin, test tube and closed test tube framed bent with special-purpose test tube plug are formed the airtight negative-pressure blood sampling system, use miniature adjustable speed peristaltic pump to bleed, make the interior subnormal ambient that forms of test tube framed bent of sealing, the small pore of the special-purpose test tube plug of negative-pressure gas process makes and in vitro forms vacuum, through two-way blood taking needle in vitro, set up the automatic inflation type tourniquet the blood suction, set up grating automatic ration device, set up automatic replace tubes and sting plug equipment automatically, set up automatic centrifugal blood vortex mixer.
2. according to described a kind of instant vacuum venous blood collection method of claim 1 and special equipment, it is characterized in that: two-way blood taking needle is made up of blood taking needle, plastics flexible catheter and Ci Sai pin.
3. according to described a kind of instant vacuum venous blood collection method of claim 1 and special equipment, it is characterized in that: the structure of described special-purpose test tube plug is made up of pipe cap and Nei Sai disjunctor, leave small pore at the inner edge of pipe cap and Nei Sai test tube is communicated with test tube rack inside by pore, the inside tight fit of test tube plug lower edge is inserted in the test tube rack circular hole.
4. according to described a kind of instant vacuum venous blood collection method of claim 1 and special equipment, it is characterized in that: described closed test tube framed bent is made up of the hollow structure of one group of band longitudinal hole, isolate mutually between each pore, top has circular pore, the test tube of band test tube plug is inserted wherein, constitute subnormal ambient, circular pore is connected with test tube plug lower edge tight fit, but single test tube framed bent combination in any and replacing, the test tube rack bottom is connected with miniature adjustable speed peristaltic pump with electromagnetic valve by the catheter adapter of bleeding.
5. according to described a kind of instant vacuum venous blood collection method of claim 1 and special equipment, set up the automatic inflation type tourniquet, the arm-rest belt, buckle, conduit, 2 pass joints, plastic plug and electromagnetic valve, the micro air pump that it is characterized in that the rectangle hollow made by the medical PVC plastic material are formed, arm-rest belt passes buckle coiled circle, join through plastic plug and 2 pass joints, shared 2 pass joints of micro air pump and electromagnetic valve, realization is to arm-rest belt inflation and disappointing function, and arm-rest belt is disposable.
6. according to described a kind of instant vacuum venous blood collection method of claim 1 and special equipment, set up grating automatic ration device, it is characterized in that: photo-electroluminescence pipe and light sensor are installed in the both sides at test tube, and different blood sampling milliliter numbers are realized by grating.
7. according to described a kind of instant vacuum venous blood collection method of claim 1 and special equipment, set up automatic replace tubes and sting plug equipment automatically, formed by test tube rack, test tube, two-way blood taking needle, slide head, flexible catheter clip, thorn plug needle holder and Ci Sai arm, it is characterized in that adopting motor realize thorn plug arm up and down and the left and right displacement of slide head, adopt the flexible realization clamping of flexible catheter clip and loosen two-way blood taking needle conduit, utilize thorn plug needle holder to block the blood taking needle needle handle.
8. according to described a kind of instant vacuum venous blood collection method of claim 1 and special equipment, set up automatic centrifugal blood vortex mixer, it is characterized in that adopting direct current generator to pass through the gear interlock and drive independent test tube rack rotation, after inserting Sheng blood test tube, motor can be realized the function of blood mixing by the mode that rotates and reverse, and test tube adopts upright mounting means.
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| CN2010100135528A CN102113887A (en) | 2010-01-06 | 2010-01-06 | Instant vacuum venous blood-sampling method and special equipment |
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| CN2010100135528A CN102113887A (en) | 2010-01-06 | 2010-01-06 | Instant vacuum venous blood-sampling method and special equipment |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103932716A (en) * | 2013-01-18 | 2014-07-23 | 白杰 | Instant vacuum and vacuum tube mutual-use blood sampling method and device |
| CN104414651A (en) * | 2013-08-28 | 2015-03-18 | 周荣佼 | Negative-pressure automatic examining and blood sampling device |
| CN104470440A (en) * | 2012-08-02 | 2015-03-25 | 张建铭 | Syringe type vacuum blood collector with telescopic protective sleeve |
| CN104665843A (en) * | 2013-11-26 | 2015-06-03 | 湖南千山医疗器械有限公司 | Automatic blood collection tube selection method and equipment |
| CN104688244A (en) * | 2015-03-25 | 2015-06-10 | 河南科技大学 | Indwelling needle set for collecting blood or administering drugs in real time |
| CN104783811A (en) * | 2015-05-05 | 2015-07-22 | 湖南千山医疗器械有限公司 | Automatic plug puncturing device used for blood sampling devices and blood sampling device with same automatic plug puncturing device |
| CN106769368A (en) * | 2016-12-01 | 2017-05-31 | 郭锦丽 | A kind of portable venous blood collection anti-freezing test tube blood specimen electronics blending instrument |
| CN109793524A (en) * | 2019-01-18 | 2019-05-24 | 莒县人民医院 | A kind of medical test blood sample sampler |
| CN110123341A (en) * | 2019-05-29 | 2019-08-16 | 高明旭 | A kind of clinical medical inspection section vacuum blood sampler |
| CN110384509A (en) * | 2019-07-29 | 2019-10-29 | 重庆医药高等专科学校 | A kind of venous blood collection multi-function device |
| CN111348330A (en) * | 2018-12-21 | 2020-06-30 | 欧蒙医学实验诊断股份公司 | Pressure-tight storage container containing a liquid |
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2010
- 2010-01-06 CN CN2010100135528A patent/CN102113887A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104470440A (en) * | 2012-08-02 | 2015-03-25 | 张建铭 | Syringe type vacuum blood collector with telescopic protective sleeve |
| CN103932716A (en) * | 2013-01-18 | 2014-07-23 | 白杰 | Instant vacuum and vacuum tube mutual-use blood sampling method and device |
| CN104414651A (en) * | 2013-08-28 | 2015-03-18 | 周荣佼 | Negative-pressure automatic examining and blood sampling device |
| CN104665843A (en) * | 2013-11-26 | 2015-06-03 | 湖南千山医疗器械有限公司 | Automatic blood collection tube selection method and equipment |
| CN104688244A (en) * | 2015-03-25 | 2015-06-10 | 河南科技大学 | Indwelling needle set for collecting blood or administering drugs in real time |
| CN104783811A (en) * | 2015-05-05 | 2015-07-22 | 湖南千山医疗器械有限公司 | Automatic plug puncturing device used for blood sampling devices and blood sampling device with same automatic plug puncturing device |
| CN106769368A (en) * | 2016-12-01 | 2017-05-31 | 郭锦丽 | A kind of portable venous blood collection anti-freezing test tube blood specimen electronics blending instrument |
| CN111348330A (en) * | 2018-12-21 | 2020-06-30 | 欧蒙医学实验诊断股份公司 | Pressure-tight storage container containing a liquid |
| CN111348330B (en) * | 2018-12-21 | 2023-03-14 | 欧蒙医学实验诊断股份公司 | Pressure-tight storage container containing a liquid |
| US11814196B2 (en) | 2018-12-21 | 2023-11-14 | Euroimmun Medizinische Labordiagnostika Ag | Pressure-tight storage vessel containing a liquid |
| CN109793524A (en) * | 2019-01-18 | 2019-05-24 | 莒县人民医院 | A kind of medical test blood sample sampler |
| CN110123341A (en) * | 2019-05-29 | 2019-08-16 | 高明旭 | A kind of clinical medical inspection section vacuum blood sampler |
| CN110384509A (en) * | 2019-07-29 | 2019-10-29 | 重庆医药高等专科学校 | A kind of venous blood collection multi-function device |
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Application publication date: 20110706 |