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Simple, convenient and efficient device and method for extracting platelet-rich plasma

A platelet-rich plasma and extraction device technology, applied in the field of clinical medicine, can solve the problems of high pollution rate, low precision, and many operating steps

Inactive Publication Date: 2011-06-01
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are high pollution rate, incomplete buffy coat, low precision, many operation steps, and time-consuming

Method used

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  • Simple, convenient and efficient device and method for extracting platelet-rich plasma
  • Simple, convenient and efficient device and method for extracting platelet-rich plasma
  • Simple, convenient and efficient device and method for extracting platelet-rich plasma

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] a. First draw 0.2ml, 3.2% (109mmol / L) sodium citrate anticoagulant in syringe 1, and then take 1.8ml of venous blood;

[0026] b. Close the plastic card 3 of the venous indwelling needle, block the blood flow in the syringe 1, and turn the syringe 1 upside down several times to fully mix the whole blood and the anticoagulant;

[0027] c. Make the syringe outlet down, put the syringe 1 into the centrifuge, centrifuge for the first time, centrifuge temperature 20°C, centrifuge speed 3000rpm, centrifuge 4min; after centrifugation, the blood is separated, that is, the lower layer is the red blood cell (RBC) layer, and the middle layer is buffy coat consisting of white blood cells (WBC) and platelets (PLE), overlying a layer of plasma, see figure 2 ;

[0028] d. Open the plastic card 3 of the venous indwelling needle, push the syringe plunger, so that most of the RBC layer near the outlet of the syringe 1 is discharged from the needle 4 of the venous infusion set, and the R...

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Abstract

The invention belongs to the field of clinical medicine, in particular relates to a simple, convenient and efficient device and method for extracting platelet-rich plasma. The extracted platelet-rich plasma contains various composite growth factors capable of effectively promoting the tissue repair. The device provided by the invention comprises an injector, a venous infusion apparatus connecting tube, a venous indwelling needle plastic card and a venous infusion apparatus needle head, wherein the injector is used for extracting venous blood and is used as a centrifugal tube; the venous infusion apparatus needle head is connected with the outlet of the injector through the venous infusion apparatus connecting tube, and the venous infusion apparatus needle head is used for carrying out skin blood vessel puncture, extracting anticoagulants and activators and injecting the extracted platelet-rich plasma to the required part of a human body; and the venous infusion apparatus connecting tube can be deviously fixed in the venous indwelling needle plastic card.

Description

technical field [0001] The invention belongs to the field of clinical medicine, and specifically relates to a simple and efficient autologous platelet-rich plasma extraction device and an extraction method. The extracted autologous platelet-rich plasma contains a variety of composite growth factors, which can effectively promote tissue repair. Background technique [0002] Platelet-rich plasma (platelet-rich plasma, PRP) is fresh whole blood after centrifugation, the platelet content of the plasma is 4 to 5 times higher than that of normal whole blood. [0003] In 1984, Assoian et al. discovered that PRP extracted from human plasma, after in vitro activation, platelet α granules can release various growth factors, such as: platelet-derived growth factor (platelet-derived growth factor, PDGF), transforming growth factor-β (transforming growth factor factor, TGF-β), vascular endothelial growth factor (VEGF), epidermal growth factor (vascularendothelial growth factor, EGF), ins...

Claims

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Application Information

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IPC IPC(8): A61M1/02
Inventor 王悦周延民
Owner JILIN UNIV
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