CN108904902A - Double syringe autologous plasma collection device and the method for collecting blood plasma - Google Patents
Double syringe autologous plasma collection device and the method for collecting blood plasma Download PDFInfo
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- CN108904902A CN108904902A CN201811070935.1A CN201811070935A CN108904902A CN 108904902 A CN108904902 A CN 108904902A CN 201811070935 A CN201811070935 A CN 201811070935A CN 108904902 A CN108904902 A CN 108904902A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 150000001875 compounds Chemical class 0.000 claims abstract description 13
- 210000004369 blood Anatomy 0.000 claims description 21
- 239000008280 blood Substances 0.000 claims description 21
- 239000000284 extract Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 210000003743 erythrocyte Anatomy 0.000 claims description 3
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 claims 1
- 210000001772 blood platelet Anatomy 0.000 abstract description 18
- 238000001815 biotherapy Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract 1
- 238000002560 therapeutic procedure Methods 0.000 abstract 1
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- 238000004519 manufacturing process Methods 0.000 description 6
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- 102000008186 Collagen Human genes 0.000 description 2
- 108010035532 Collagen Proteins 0.000 description 2
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- 230000008520 organization Effects 0.000 description 2
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- 238000012545 processing Methods 0.000 description 2
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- 102000010834 Extracellular Matrix Proteins Human genes 0.000 description 1
- 108010037362 Extracellular Matrix Proteins Proteins 0.000 description 1
- 102000005741 Metalloproteases Human genes 0.000 description 1
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Classifications
-
- 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/02—Blood transfusion apparatus
- A61M1/029—Separating blood components present in distinct layers in a container, not otherwise provided for
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Pathology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A kind of method that the present invention provides double syringe autologous plasma collection device and collects blood plasma, its growth requirement for being directed to existing biological therapy scheme, a kind of double syringe autologous plasma is provided and collects unique texture and technique, pass through unique self adjusting blood plasma technology, the blood plasma that can efficiently, easily prepare clinical use safety and the high quality rich in blood platelet, to quickly realize biological therapy；It is equipped with outer syringe and inner injector, outer syringe includes outer syringe shell body, outer syringe inner chamber body and outer injector push-rod, inner injector includes inner injector outer housing, inner injector inner chamber body and inner injector push rod, and inner injector push rod and inner injector inner chamber body are slidably and sealingly connected with；Inner injector outer housing is connect with outer injector push-rod inner chamber body, and inner injector outer housing is located in outer injector push-rod inner chamber body, and outer injector push-rod and inner injector outer housing form compound push-rod assembly.It the composite can be widely applied to clinical biochemical therapy field.
Description
Technical field
The present invention relates to a kind of self technical fields for adjusting plasma collection, more particularly to a kind of self blood of double syringe
The method starched collection device and collect blood plasma.
Background technique
Biological therapy scheme has been to be concerned by more and more people in recent decades, and the blood plasma rich in blood platelet is recently in beauty
Appearance, wound, rheumatism, surgery and veterinary applications obtain quantum jump and development, and the therapeutic effect of blood plasma is by intra platelet free calcium
Growth factor support, anywhere these growth factors can cause agglutination, blood product is such as self to be adjusted
Blood plasma has been directed to different indications and has conducted extensive research and apply.
Various protein, including growth factor can be discharged when known platelet activation, these growth factors are for various groups
It is required for knitting the healing of type, and they can cooperate, and the drug effect of Platelet-rich plasm originates from blood platelet and blood
The numerous growth factors and signaling molecule found in slurry.These growth factors and more including bone, tendon, cartilage and skin
The healing of kind of organization type is related, their main function is the various cell types of induction (such as stem cell, osteoblast, table
Chrotoplast) proliferation and differentiation, enhancing and adjust collagen, proteoglycan and tissue inhibitors of metalloproteinases, stimulate blood
The effects of pipe generates, these effects and growth factor synergistic effect.
A kind of double syringe autologous plasma collection device of the present invention and preparation method thereof, is received by double syringe autologous plasma
Collect unique texture and technique, unique self adjusting blood plasma technology is provided, it, can be with using the healing and regenerative process of human body itself
Efficiently, the blood plasma of clinical use safety and the high quality rich in blood platelet is easily prepared, thus quickly realize biological therapy,
It is a kind of cost-effective concentration growth factor and the method for treatment.
Summary of the invention
The present invention is directed to the growth requirement of existing biological therapy scheme, and it is unique to provide a kind of double syringe autologous plasma collection
Structure and technique, by unique self adjusting blood plasma technology, using the healing and regenerative process of human body itself, can efficiently,
The blood plasma for easily preparing clinical use safety and the high quality rich in blood platelet to quickly realize biological therapy is one
The cost-effective concentration growth factor of kind and the method for treatment.
For this purpose, the technical scheme is that, a kind of double syringe autologous plasma collection device is equipped with outer syringe and interior
Syringe；Outer syringe includes outer syringe shell body, outer syringe inner chamber body and outer injector push-rod, outer injector push-rod and
Outer syringe inner chamber body is slidably and sealingly connected with；Outer injector push-rod inner chamber body is equipped with inside outer injector push-rod；Inner injector packet
Inner injector outer housing, inner injector inner chamber body and inner injector push rod are included, inner injector push rod and inner injector inner chamber body are sliding
Dynamic sealing connection；Inner injector outer housing is connect with outer injector push-rod inner chamber body, and inner injector outer housing is located at outer syringe
In push rod inner chamber body, outer injector push-rod and inner injector outer housing form compound push-rod assembly；Outer syringe inner chamber body with it is interior
The connection of syringe inner chamber body, outer syringe one end are equipped with outer syringe adapter.
Preferably, outer injector push-rod is located at outer syringe inner chamber body side and connects equipped with Rule built in outer injector push-rod
Head, inner injector inner chamber body side are equipped with inner injector female Luer, built in inner injector female Luer and outer injector push-rod
Female Luer is tightly connected.
Preferably, outer injector push-rod one end is equipped with seal rubber plug, and seal rubber plug is slidingly sealed with outer syringe inner chamber body
Connection.
Preferably, inner injector push rod one end is equipped with seal rubber plug, and seal rubber plug is slidingly sealed with inner injector inner chamber body
Connection.
Preferably, outer syringe shell body end is equipped with outer syringe and holds handle.
Preferably, inner injector outer housing end is equipped with inner injector and holds handle.
Preferably, the outer syringe adapter that outer syringe one end is equipped with is outer syringe female Luer, the outer syringe
Female Luer is equipped with female Luer syringe cap.
A kind of double syringe autologous plasma collection device is equipped with outer syringe and inner injector；Outer syringe includes outer note
Emitter outer housing, outer syringe inner chamber body and outer injector push-rod, outer injector push-rod and outer syringe inner chamber body are slidingly sealed
Connection, outer syringe one end are equipped with outer syringe female Luer, and outer syringe female Luer is equipped with female Luer syringe cap；
It is equipped with inner injector inner chamber body inside outer injector push-rod, is equipped with inner injector push rod, interior injection inside inner injector inner chamber body
Device push rod and inner injector inner chamber body are slidably and sealingly connected with, the inner injector inner chamber body being equipped with inside outer injector push-rod and interior note
Emitter push rod forms inner injector；The inner injector inner chamber body being equipped with inside outer injector push-rod and outer injector push-rod forms multiple
Push-rod assembly is closed, outer syringe inner chamber body is connected to inner injector inner chamber body.
A method of blood plasma is collected using double syringe autologous plasma collection device, is included the following steps：
(1) every 2 seconds speed with 1 ± 10%cc slowly extracts the venous blood of most 12cc out, with female Luer syringe
Cap lives double syringe；
(2) double syringe is put into a centrifuge, and is put into appropriately sized balancer in opposite position；
(3) double syringe containing venous blood is centrifuged 5 minutes with the revolving speed of 1500rpm-2500rpm；
(4) double syringe is removed, double syringe is kept to be in stand up position, blood plasma and red blood cell is avoided to form mixing shape
State；
(5) outer injector push-rod is slowly pushed down on, while the slowly inner injector push rod of pull-up inner injector, by 3-
5 milliliters of blood plasma are transferred in inner injector inner chamber body from outer syringe；
(6) inner injector is extracted, the blood plasma in inner injector inner chamber body is ready for, can use at once.
Preferably, the blood plasma in inner injector inner chamber body can also be transferred in the sterile cup of aseptic area, and be transferred to
It is used in 5mL syringe, the blood plasma gathered should be used in four hours after blood drawing.
The invention has the advantages that since outer injector push-rod and inner injector outer housing form compound push-rod assembly,
Outer syringe links together with inner injector, forms double syringe autologous plasma collection device, can be formed quickly and easily
The self closed system for adjusting blood plasma of configuration, obtains blood plasma with double syringe system, slowly pushes down on outer injector push-rod, together
When slowly pull-up inner injector inner injector push rod, blood plasma is transferred in inner injector inner chamber body from outer syringe, is pulled out
Inner injector out, the blood plasma in inner injector inner chamber body are ready for, can use at once, the efficiency for obtaining blood plasma is very high, does not have
There is other week swivel link, it is safe and reliable；Blood plasma in inner injector inner chamber body can also be transferred to the nothing of aseptic area
It in bacterium cup, and is transferred in 5mL syringe and uses, the blood plasma gathered, using flexible should be used in four hours after blood drawing.
Double syringe installation and removal of the present invention are fast and convenient, blood plasma conveniently and safely handled, when in use without tearing open
It unloads, saves the operating time, the collection of blood plasma can be completed in a few minutes, and traditional Platelet-rich plasm systematic comparison,
Traditional Platelet-rich plasm manufacturing system needs to be up to 45 minutes then just to can be carried out use to handle blood, because
This often delays treatment, while increasing surgery cost, and the present invention is rich since outer syringe links together with inner injector
All preparation processes of the manufacturing system containing thrombocyte plasma are carried out in closed system, and double syringe design can be square
Just it safely operates, the processing that can be completed at 5 minutes or so to blood forms the blood plasma for being rich in blood platelet, it is self to complete preparation
Adjust the needs of blood plasma.
Outer syringe and inner injector integrate, and form unique double syringe system, belong to closed system, can
For the use of the operating room under clinic or aseptic condition, it is used to prepare self adjusting blood plasma, it is viscous for providing low viscosity or height
The fluid of degree can mix before being applied to orthopedic surgical site with allograft or autograft, such as
It is spraying, gel or grumeleuse.
Detailed description of the invention
Fig. 1 is the axis geodesic structure schematic diagram of the embodiment of the present invention；
Fig. 2 is the another axis geodesic structure schematic diagram of the embodiment of the present invention；
Fig. 3 is the sectional view of the embodiment of the present invention；
Fig. 4 is the cross-sectional view of the compound push-rod assembly of the present invention；
Fig. 5 is the sectional view of further embodiment of this invention；
Fig. 6 is the cross-sectional view of the another compound push-rod assembly of the present invention.
Symbol description in figure：
1. outer syringe；2. inner injector；3. female Luer syringe cap；4. compound push-rod assembly；101. outer syringe
Outer housing；102. outer syringe inner chamber body；103. seal rubber plug；104. outer syringe female Luer；105. outer injector push-rod；
106. outer syringe holds handle；107. outer injector push-rod inner chamber body；202. inner injector inner chamber bodies；203. inner injector Shandongs
That connector；Female Luer built in 204. outer injector push-rods；205. inner injector outer housings；207. inner injector push rods；208.
Inner injector holds handle.
Specific embodiment
The present invention is described further below with reference to embodiment.
Embodiment 1
Fig. 1-4 is a kind of embodiment of the invention, and Fig. 1-2 is the axis geodesic structure schematic diagram of the embodiment of the present invention, Tu1-2Zhong
It can be seen that a kind of double syringe autologous plasma collection device of the present invention is made of outer syringe 1 and inner injector 2, interior note
Emitter 2 is set to inside outer syringe 1, and Fig. 3 is the sectional view of the present embodiment, can see in Fig. 3, double syringe autologous plasma is received
Acquisition means are equipped with outer syringe 1 and inner injector 2, and outer syringe 1 includes outer syringe shell body 101, outer syringe inner chamber body
102 and outer injector push-rod 105, outer injector push-rod 105 and outer syringe inner chamber body 102 be slidably and sealingly connected with, outer syringe 1
One end is equipped with outer syringe adapter, and in the embodiment, the outer syringe adapter that outer 1 one end of syringe is equipped with is outer syringe Rule
Connector 104, outer syringe female Luer 104 are equipped with female Luer syringe cap 3；It is equipped with inside outer injector push-rod 105 interior
Syringe inner chamber body 202, is equipped with inner injector push rod 207 inside inner injector inner chamber body 202, inner injector push rod 207 and interior
Syringe inner chamber body 202 is slidably and sealingly connected with, the inner injector inner chamber body 202 being equipped with inside outer injector push-rod 105 and interior note
Emitter push rod 207 forms inner injector 2；In the inner injector being equipped with inside outer injector push-rod 105 and outer injector push-rod 105
Cavity 202 forms compound push-rod assembly 4, and outer syringe inner chamber body 102 is connected to inner injector inner chamber body 202；Outer syringe pushes away
105 end of bar is equipped with inner injector and holds handle 208, facilitates operation.
Fig. 4 is the cross-sectional view of the compound push-rod assembly of the present embodiment, due to outer injector push-rod 105 and inner injector outer housing
205 form compound push-rod assembly 4, and outer syringe 1 links together with inner injector 2, form double syringe autologous plasma and collect
Device can form the self closed system for adjusting blood plasma of quickly and easily configuration, obtain blood plasma with double syringe system, slowly
Outer injector push-rod 105 is pushed down on, while the slowly inner injector push rod 207 of pull-up inner injector 2, by blood plasma from outer note
Emitter 1 is transferred in inner injector inner chamber body 202, extracts inner injector 2, and the blood plasma in inner injector inner chamber body 202 is ready for
It is good, it can use at once, the efficiency for obtaining blood plasma is very high, safe and reliable without other week swivel link；It can also be by interior note
Blood plasma in emitter inner chamber body 202 is transferred in the sterile cup of aseptic area, and is transferred in 5mL syringe and is used, and should taken out
The blood plasma gathered, using flexible are used after blood in four hours.
In the embodiment, the material selection polypropylene of syringe, the material of female Luer syringe cap is TPU, can also be with
Select other kinds of material.
Embodiment 2
Fig. 5-6 is another embodiment of the invention, and Fig. 5 is a kind of double syringe autologous plasma collection device of the present invention
Sectional view, it can be seen that, a kind of double syringe autologous plasma collection device is equipped with outer syringe 1 and inner injector 2, outside in figure
Injection, 1 includes outer syringe shell body 101, outer syringe inner chamber body 102 and outer injector push-rod 105, outer injector push-rod
105 and outer syringe inner chamber body 102 be slidably and sealingly connected with, outer 1 one end of syringe be equipped with outer syringe female Luer 104, outer note
Emitter female Luer 104 is equipped with female Luer syringe cap 3, is equipped in outer injector push-rod inside outer injector push-rod 105
Cavity 107, inner injector 2 includes inner injector outer housing 205, inner injector inner chamber body 202 and inner injector push rod 207, interior
Injector push-rod 207 and inner injector inner chamber body 202 are slidably and sealingly connected with；Inner injector outer housing 205 and outer injector push-rod
Inner chamber body 107 connects, and inner injector outer housing 205 is located in outer injector push-rod inner chamber body 107, outer injector push-rod 105 and
Inner injector outer housing 205 forms compound push-rod assembly 4, and outer syringe inner chamber body 102 is connected to inner injector inner chamber body 202.
Outer 105 one end of injector push-rod is equipped with seal rubber plug 103, and seal rubber plug 103 and outer syringe inner chamber body 102 are slided
It is tightly connected；207 one end of inner injector push rod is equipped with seal rubber plug 103, and seal rubber plug 103 and inner injector inner chamber body 202 are sliding
Dynamic sealing connection.
Outer 101 end of syringe shell body is equipped with outer syringe and holds handle 106, and 101 end of inner injector outer housing is set
There is inner injector to hold handle 208, is operated convenient for operator.
In the embodiment, the outer diameter of inner injector 2 is 17.5mm, and the outer diameter of outer syringe 1 is 26.5mm, female Luer note
The major diameter of thread of emitter cap is 7.65mm, also can according to need using various sizes of design, meets collection in worksite blood plasma etc.
Needs.
The installation and removal of the present embodiment double syringe are fast and convenient, conveniently and safely handle blood plasma, are not necessarily to when in use
Disassembly saves the operating time, the collection of blood plasma can be completed in a few minutes, with traditional Platelet-rich plasm system ratio
Compared with, traditional Platelet-rich plasm manufacturing system needs to be up to 45 minutes then just to can be carried out use to handle blood,
Therefore treatment is often delayed, while increases surgery cost.
Fig. 6 is the cross-sectional view of the compound push-rod assembly of the present embodiment, be can see in figure, outer injector push-rod 105 is located at outer
102 side of syringe inner chamber body is equipped with female Luer 204 built in outer injector push-rod, and 202 side of inner injector inner chamber body is equipped with
Female Luer 204 is tightly connected built in inner injector female Luer 203, inner injector female Luer 203 and outer injector push-rod,
And the problems such as forming sealing effect, being not in leak blood；Handle 208 can also be held by rotation inner injector by outer note
Emitter push rod 105 and inner injector outer housing 205 separate, to realize that inner injector 2 is whole completely de- with outer syringe 1
From facilitating application operating.
Using the method that a kind of double syringe autologous plasma collection device of the invention collects blood plasma, include the following steps：
(1) every 2 seconds speed with 1cc slowly extracts the venous blood of most 12cc out, is covered with female Luer syringe cap 3
Double syringe；
(2) double syringe is put into a centrifuge, and is put into appropriately sized balancer in opposite position；
(3) double syringe containing venous blood is centrifuged 5 minutes with the revolving speed of 1500rpm-2500rpm；
(4) double syringe is removed, double syringe is kept to be in stand up position, blood plasma and red blood cell is avoided to form mixing shape
State；
(5) outer injector push-rod 105 is slowly pushed down on, while the slowly inner injector push rod of pull-up inner injector
207,3-5 milliliters of blood plasma are transferred in inner injector inner chamber body 202 from outer syringe 1；
(6) inner injector 2 is extracted, the blood plasma in inner injector inner chamber body 202 is ready for, can use at once.
Blood plasma in inner injector inner chamber body 202 can also be transferred in the sterile cup of aseptic area, and be transferred to 5mL note
Used in emitter, should after blood drawing in four hours using the blood plasma gathered, the flexibility used can be provided in this way.
When venous blood samples, the vein of most 12cc can be slowly extracted within every 2 seconds out with the speed of 1 ± 10%cc
Blood covers double syringe with female Luer syringe cap 3.
The present embodiment since outer syringe links together with inner injector, Platelet-rich plasm manufacturing system it is all
Preparation process is carried out in closed system, and double syringe design, which can be convenient, safely to be operated, can be at 5 minutes or so
The processing to blood is completed, the blood plasma for being rich in blood platelet is formed, completes the self needs for adjusting blood plasma of preparation.
Outer syringe 1 and inner injector 2 integrate, and form unique double syringe system, belong to closed system,
The use for the operating room that can be used under clinic or aseptic condition is used to prepare self adjusting blood plasma, for providing low viscosity or height
The fluid of viscosity can mix before being applied to orthopedic surgical site with allograft or autograft,
As spraying, gel or grumeleuse.
The Platelet Density that the double syringe that the present embodiment proposes is collected is conventional syringe more than twice, the embodiment
The Platelet Density that double syringe is collected is about 2.5 times of conventional syringe, and the concentration level of growth factor is also significant higher,
Meanwhile cost is lower than traditional system containing thrombocyte plasma, when platelet activation, can discharge various protein, including grow because
Son, these growth factors are required for the healing of various organization types, and they can cooperate, and can be induced various
The proliferation and differentiation of cell type enhance the production of extracellular matrix, such as collagen, the production of proteoglycan, and stimulate
Angiogenesis and chemotaxis are conducive to clinical treatment use.
Above is only a specific embodiment of the present invention, the displacement and equivalent changes and modifications of equivalent assemblies still belongs to this
The range that invention claims are covered.
Claims (10)
1. a kind of double syringe autologous plasma collection device is equipped with outer syringe and inner injector, it is characterized in that：The outer injection
Device includes outer syringe shell body, outer syringe inner chamber body and outer injector push-rod, the outer injector push-rod and outer syringe
Inner chamber body is slidably and sealingly connected with, and is equipped with outer injector push-rod inner chamber body inside the outer injector push-rod；The inner injector packet
Inner injector outer housing, inner injector inner chamber body and inner injector push rod are included, inner injector push rod and inner injector inner chamber body are sliding
Dynamic sealing connection；The inner injector outer housing is connect with outer injector push-rod inner chamber body, and the inner injector outer housing is located at
In outer injector push-rod inner chamber body, the outer injector push-rod and inner injector outer housing form compound push-rod assembly；It is described outer
Syringe inner chamber body is connected to inner injector inner chamber body, and described outer syringe one end is equipped with outer syringe adapter.
2. double syringe autologous plasma collection device according to claim 1, it is characterised in that：The outer injector push-rod
It is equipped with female Luer built in outer injector push-rod positioned at outer syringe inner chamber body side, inner injector inner chamber body side is equipped with
Female Luer is tightly connected built in inner injector female Luer, the inner injector female Luer and outer injector push-rod.
3. double syringe autologous plasma collection device according to claim 1 or 2, it is characterised in that：The outer syringe
Push rod one end is equipped with seal rubber plug, and the seal rubber plug is slidably and sealingly connected with outer syringe inner chamber body.
4. double syringe autologous plasma collection device according to claim 1 or 2, it is characterised in that：The inner injector
Push rod one end is equipped with seal rubber plug, and the seal rubber plug is slidably and sealingly connected with inner injector inner chamber body.
5. double syringe autologous plasma collection device according to claim 1 or 2, it is characterised in that：The outer syringe
Outer housing end is equipped with outer syringe and holds handle.
6. double syringe autologous plasma collection device according to claim 1 or 2, it is characterised in that：The inner injector
Outer housing end is equipped with inner injector and holds handle.
7. double syringe autologous plasma collection device according to claim 1 or 2, it is characterised in that：The outer syringe
The outer syringe adapter that one end is equipped with is outer syringe female Luer, and the outer syringe female Luer is infused equipped with female Luer
Emitter cap.
8. a kind of double syringe autologous plasma collection device is equipped with outer syringe and inner injector, it is characterized in that：The outer injection
Device includes outer syringe shell body, outer syringe inner chamber body and outer injector push-rod, the outer injector push-rod and outer syringe
Inner chamber body is slidably and sealingly connected with, and described outer syringe one end is equipped with outer syringe female Luer, the outer syringe female Luer
It is equipped with female Luer syringe cap；Inner injector inner chamber body is equipped with inside the outer injector push-rod, in the inner injector
Inside cavity is equipped with inner injector push rod, and the inner injector push rod and inner injector inner chamber body are slidably and sealingly connected with, described outer
The inner injector inner chamber body and inner injector push rod being equipped with inside injector push-rod form inner injector；The outer injector push-rod
Form compound push-rod assembly with the inner injector inner chamber body being equipped with inside outer injector push-rod, the outer syringe inner chamber body with it is interior
The connection of syringe inner chamber body.
9. a kind of method that blood plasma is collected using double syringe autologous plasma collection device a method as claimed in any one of claims 1-8,
It is characterized in that including the following steps：
(1) every 2 seconds speed with 1 ± 10%cc slowly extracts the venous blood of most 12cc out, with female Luer syringe cap
Firmly double syringe；
(2) double syringe is put into a centrifuge, and is put into appropriately sized balancer in opposite position；
(3) double syringe containing venous blood is centrifuged 5 minutes with the revolving speed of 1500rpm-2500rpm；
(4) double syringe is removed, double syringe is kept to be in stand up position, blood plasma and red blood cell is avoided to form admixture；
(5) outer injector push-rod is slowly pushed down on, while the slowly inner injector push rod of pull-up inner injector, by 3-5 milli
Blood plasma is risen to be transferred in inner injector inner chamber body from outer syringe；
(6) inner injector is extracted, the blood plasma in inner injector inner chamber body is ready for, can use at once.
10. the method according to claim 9 for collecting blood plasma using double syringe autologous plasma collection device, feature exist
In：The step (6) also can be replaced：Blood plasma in inner injector inner chamber body is transferred in the sterile cup of aseptic area, and
It is transferred in 5mL syringe and uses, the blood plasma gathered should be used in four hours after blood drawing.
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Application publication date: 20181130 |