PRP extraction device and implementation method thereof
Technical Field
The invention belongs to the technical field of PRP extraction, and particularly relates to a PRP extraction device and an implementation method thereof.
Background
PRP autologous serum stem cells (PLATELET RICH PLASMA) refer to platelet-rich, plasma-rich or growth factor-rich blood cells. PRP extraction refers to the extraction of cells and plasma rich in high concentrations of platelets and various self-growth factors from their own blood.
In the prior art, most of blood is collected through a blood collection tube, then the blood in the blood collection tube is centrifuged by using a centrifuge, and then the blood is inserted into a centrifuged test tube liquid by using a long needle tube (from top to bottom), and because PRP autologous serum stem cells generally exist in an intermediate layer and are extracted by hand, the technical defects of large error, poor repeatability, large interference of human factors, unstable concentration, poor effect and the like exist.
Disclosure of Invention
The present invention is directed to a PRP extraction device, which solves the problems set forth in the background art. The PRP extraction device provided by the invention has the characteristic of being capable of accurately extracting PRP.
The invention further aims at providing a method for realizing the PRP extraction device.
In order to achieve the purpose, the PRP extracting device comprises an extracting pipe, wherein a connector is arranged at the upper end of the extracting pipe, and a piston is arranged in the extracting pipe.
In order to seal the connector and thereby avoid that blood is thrown out from the connector 5 during centrifugation, further, the connector is sleeved with an end cover.
In order to facilitate the disassembly and assembly between the end cover and the connector, the end cover is further connected with the connector through threaded engagement.
In order to facilitate the disassembly and assembly between the end cover and the connector, further, the connector is of a frustum-shaped structure, the structure of the end cover corresponds to that of the connector, and the end cover is connected with the connector through interference fit.
In order to avoid the piston being thrown out in the centrifuging process of the extraction tube, a base is arranged at the bottom of the extraction tube.
In order to facilitate the assembly of the piston and the extraction tube, further, the base is connected with the extraction tube by threaded engagement.
In order to facilitate the movement of the piston in the extraction tube during the injection or withdrawal of blood, the lower end of the extraction tube is further provided with air holes near the base.
In order to extract PRP more stably and ensure the accuracy of extraction, the device further comprises an elbow which is arranged above the connector.
In the invention, the implementation method of the PRP extraction device comprises the following steps:
firstly, injecting blood into an extraction tube through a connector;
covering an end cover, and putting the extraction pipe into a centrifugal machine for centrifugation;
thirdly, after centrifugation, opening the end cover, connecting the extraction needle cylinder with the connector through an elbow, and extracting PP and PRP liquid at the upper layer in the extraction tube;
(IV) injecting the extracted PP and PRP liquids into a new extraction tube;
fifth, repeating the second step;
and sixthly, pumping the PP liquid at the upper layer through a pumping needle cylinder, and pumping the residual PRP liquid in the pumping tube through a new pumping needle cylinder.
Compared with the prior art, the invention has the beneficial effects that:
1. According to the invention, the PRP is extracted through the extraction tube, and the long needle tube is not required to extend into the extraction tube for extraction, so that the interference of human factors is reduced, the purity of the extracted PRP is higher and more stable, and thus the white blood cell-rich and white blood cell-rich plasma, the white blood cell-poor and platelet-rich plasma and the injectable platelet-rich fibrin can be extracted;
2. The end cover is sleeved on the connector, and the connector is sealed by the end cover, so that blood is prevented from being thrown out from the connector during centrifugation;
3. the bottom of the extraction tube is provided with the base, and the piston is limited by the base, so that the piston is prevented from being thrown out in the process of centrifuging the extraction tube;
4. The circumference of the lower end of the extraction tube is provided with the air holes close to the base, so that the piston can move in the extraction tube when blood is injected or extracted.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic representation of the use of the present invention;
FIG. 4 is a schematic cross-sectional view of embodiment 2 of the present invention;
In the figure, 1, a base, 2, a piston, 3, an extraction pipe, 4, an end cover, 5, a connector, 6, an air hole, 7, an elbow and 8, and an extraction needle cylinder.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-3, the present invention provides a PRP extraction device, which comprises an extraction tube 3, wherein a connector 5 is arranged at the upper end of the extraction tube 3, and a piston 2 is arranged inside the extraction tube 3.
By adopting the technical scheme, the PRP is extracted through the extraction tube 3, the long needle tube is not required to extend into the extraction tube for extraction, the interference of human factors is reduced, the purity of the extracted PRP is higher and more stable, and therefore, the white blood cell-rich and white platelet-rich plasma (L-PRP), the white blood cell-poor and platelet-rich plasma (P-PRP) and the injectable platelet-rich fibrin (i-PRF) can be extracted.
Specifically, an end cover 4 is sleeved on the connector 5.
Through adopting above-mentioned technical scheme, through end cover 4 sealing connection head 5 to avoid when centrifuging, the blood throws away from connector 5.
Specifically, the end cap 4 is connected with the connector 5 through threaded engagement.
By adopting the technical scheme, the disassembly and assembly between the end cover 4 and the connector 5 are convenient.
Specifically, the bottom of extraction tube 3 is equipped with base 1.
Through adopting above-mentioned technical scheme, carry out spacingly through base 1 to piston 2 to can avoid extracting pipe 3 to lead to piston 2 to be thrown away at centrifugal in-process.
Specifically, the base 1 is connected with the extraction tube 3 by screw engagement.
By adopting the technical scheme, the base 1 and the extraction pipe 3 are convenient to assemble and disassemble, and therefore the piston 2 and the extraction pipe 3 are convenient to assemble.
Specifically, the circumference of the lower end of the extraction tube 3 is provided with air holes 6 close to the base 1.
By adopting the above-described solution, the movement of the piston 2 inside the extraction tube 3 during the injection or extraction of blood is facilitated.
Example 2
Referring to fig. 4, the difference between the present embodiment and embodiment 1 is that, specifically, the connector 5 has a frustum-shaped structure, the structure of the end cover 4 corresponds to that of the connector 5, and the end cover 4 and the connector 5 are connected by interference fit.
By adopting the technical scheme, the disassembly and assembly between the end cover 4 and the connector 5 are convenient.
Example 3
The embodiment is different from the embodiment 1 in that the connector further comprises an elbow 7, and the elbow 7 is arranged above the connector.
Through adopting above-mentioned technical scheme, make through setting up of elbow 7 can the level operate when extracting PRP through extraction cylinder 8 to can more steadily draw PRP, ensure the accuracy of extraction.
Further, the implementation method of the PRP extraction device provided by the invention comprises the following steps:
Firstly, injecting blood into the extraction tube 3 through the connector 5;
secondly, covering the end cover 4, and putting the extraction tube 3 into a centrifugal machine for centrifugation;
Thirdly, after centrifugation, opening the end cover 4, connecting the extraction needle cylinder 8 with the connector 5 through the elbow 7, and extracting PP (plasma) and PRP liquid at the upper layer in the extraction tube 3;
(IV), injecting the extracted PP and PRP liquid into a new extraction pipe 3;
fifth, repeating the second step;
Sixth, the upper layer of PP liquid is pumped out by the pumping syringe 8, and the remaining PRP liquid in the pumping tube 3 is pumped out by the new pumping syringe 8.
In summary, the PRP is extracted through the extracting tube 3, the long needle tube is not required to extend into the extracting tube for extraction, the interference of human factors is reduced, the purity of the extracted PRP is higher and more stable, so that the white blood cell-rich platelet plasma (L-PRP), the white blood cell-rich platelet plasma (P-PRP) and the injectable platelet-rich fibrin (i-PRF) can be extracted, the end cover 4 is sleeved on the connecting head 5, the connecting head 5 is sealed through the end cover 4, so that blood is prevented from being thrown out from the connecting head 5 during centrifugation, the base 1 is arranged at the bottom of the extracting tube 3, the piston 2 is limited through the base 1, the piston 2 is prevented from being thrown out during centrifugation, and the air holes 6 close to the base 1 are formed in the circumference of the lower end of the extracting tube 3, so that the piston 2 can move in the extracting tube 3 during blood injection or extraction.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.