A PRP extraction device and implementation method thereof

Abstract

The present invention discloses a PRP extraction device, including an extraction tube, a connector is provided at the upper end of the extraction tube, and a piston is provided inside the extraction tube; the present invention also discloses a method for realizing the PRP extraction device. The present invention extracts PRP through the extraction tube, and does not need to use a long needle tube to insert for extraction, thereby reducing the interference of human factors, and the extracted PRP has higher purity and is more stable, so that leukocyte-rich platelet-rich plasma, leukocyte-poor platelet-rich plasma and injectable platelet-rich fibrin can be extracted; the connector of the present invention is provided with an end cap, and the connector is sealed by the end cap, so as to avoid blood being thrown out from the connector during centrifugation; the bottom of the extraction tube of the present invention is provided with a base, and the piston is limited by the base, so as to avoid the piston being thrown out during the centrifugation of the extraction tube.

Description

Technical Field

[0001] The invention belongs to the technical field of PRP extraction, and in particular relates to a PRP extraction device and an implementation method thereof. Background Art

[0002] PRP autologous serum stem cells (Platelet Rich Plasma) refer to blood cells rich in platelets, plasma or growth factors. The PRP extraction technology refers to the use of one's own blood to extract cells and plasma rich in high concentrations of platelets and various autologous growth factors.

[0003] In the prior art, blood is mostly collected through blood collection tubes, and then the blood in the blood collection tubes is centrifuged using a centrifuge, and then a long needle is inserted (from top to bottom) into the centrifuged test tube liquid. Since PRP autologous serum stem cells generally exist in the middle layer, manual extraction will result in technical disadvantages such as large errors, poor repeatability, large interference from human factors, unstable concentration, and poor results. Summary of the invention

[0004] The purpose of the present invention is to provide a PRP extraction device to solve the problems raised in the above background technology. The present invention provides a PRP extraction device that can accurately extract PRP.

[0005] Another object of the present invention is to provide a method for implementing a PRP extraction device.

[0006] To achieve the above object, the present invention provides the following technical solution: a PRP extraction device, comprising an extraction tube, a connector is provided at the upper end of the extraction tube, and a piston is provided inside the extraction tube.

[0007] In order to seal the connector and prevent blood from being thrown out of the connector 5 during centrifugation, an end cap is further provided on the connector.

[0008] In order to facilitate assembly and disassembly between the end cover and the connector, the end cover and the connector are further connected by threaded engagement.

[0009] In order to facilitate assembly and disassembly between the end cover and the connector, further, the connector is a frustum-shaped structure, the structure of the end cover corresponds to the structure of the connector, and the end cover and the connector are connected by interference fit.

[0010] In order to prevent the piston of the extraction tube from being thrown out during the centrifugation process, a base is further provided at the bottom of the extraction tube.

[0011] In order to facilitate the assembly of the piston and the extraction tube, the base and the extraction tube are further connected by threaded engagement.

[0012] In order to facilitate the movement of the piston in the extraction tube when blood is injected or extracted, further, an air hole close to the base is provided on the circumference of the lower end of the extraction tube.

[0013] In order to extract PRP more smoothly and ensure the accuracy of extraction, it further includes an elbow, which is arranged above the connecting head.

[0014] In the present invention, a method for implementing the PRP extraction device further comprises the following steps:

[0015] (1) Inject blood into the extraction tube through the connector;

[0016] (2) Cover the end cap and place the extraction tube into a centrifuge for centrifugation;

[0017] (iii) After centrifugation, open the end cap, connect the extraction syringe to the connector through the elbow, and extract the PP and PRP liquid in the upper layer of the extraction tube;

[0018] (iv) Inject the extracted PP and PRP liquids into a new extraction tube;

[0019] (V) Repeat step (II);

[0020] (VI) Draw out the PP liquid on the upper layer through the extraction syringe, and then use a new extraction syringe to draw out the remaining PRP liquid in the extraction tube.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention extracts PRP through an extraction tube, without the need to insert a long needle tube for extraction, thereby reducing the interference of human factors. The extracted PRP has a higher purity and is more stable, thereby being able to extract leukocyte-rich platelet-rich plasma, leukocyte-poor platelet-rich plasma and injectable platelet-rich fibrin;

[0023] 2. The connector of the present invention is provided with an end cap, which seals the connector to prevent blood from being thrown out of the connector during centrifugation;

[0024] 3. A base is provided at the bottom of the extraction tube of the present invention, and the piston is limited by the base, so as to prevent the piston from being thrown out during the centrifugation of the extraction tube;

[0025] 4. The circumference of the lower end of the extraction tube of the present invention is provided with air holes close to the base, which facilitates the movement of the piston in the extraction tube when injecting blood or extracting blood. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 It is a cross-sectional structural schematic diagram of the present invention;

[0028] Figure 3 It is a schematic diagram of the use of the present invention;

[0029] Figure 4 It is a schematic cross-sectional structural diagram of embodiment 2 of the present invention;

[0030] In the figure: 1. base; 2. piston; 3. extraction tube; 4. end cover; 5. connector; 6. air hole; 7. elbow; 8. extraction syringe. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example 1

[0033] See also Figure 1-3 The present invention provides the following technical solution: a PRP extraction device, comprising an extraction tube 3, a connector 5 is provided at the upper end of the extraction tube 3, and a piston 2 is provided inside the extraction tube 3.

[0034] By adopting the above technical solution, PRP is extracted through the extraction tube 3, and there is no need to insert a long needle for extraction, which reduces the interference of human factors. The extracted PRP has higher purity and is more stable, so that leukocyte-rich platelet-rich plasma (L-PRP), leukocyte-poor platelet-rich plasma (P-PRP) and injectable platelet-rich fibrin (i-PRF) can be extracted.

[0035] Specifically, the connector 5 is sleeved with an end cover 4 .

[0036] By adopting the above technical solution, the connector 5 is sealed by the end cover 4, thereby preventing blood from being thrown out of the connector 5 during centrifugation.

[0037] Specifically, the end cover 4 is connected to the connector 5 by threaded engagement.

[0038] By adopting the above technical solution, the disassembly and assembly between the end cover 4 and the connector 5 is facilitated.

[0039] Specifically, a base 1 is provided at the bottom of the extraction tube 3 .

[0040] By adopting the above technical solution, the piston 2 is limited by the base 1, so that the piston 2 can be prevented from being thrown out of the extraction tube 3 during the centrifugation process.

[0041] Specifically, the base 1 is connected to the extraction pipe 3 by threaded engagement.

[0042] By adopting the above technical solution, the disassembly and assembly of the base 1 and the extraction tube 3 are facilitated, thereby assembling the piston 2 and the extraction tube 3 is facilitated.

[0043] Specifically, an air hole 6 close to the base 1 is provided on the circumference of the lower end of the extraction pipe 3 .

[0044] By adopting the above technical solution, the movement of the piston 2 in the extraction tube 3 is facilitated when blood is injected or extracted.

[0045] Example 2

[0046] See also Figure 4 , this embodiment is different from Embodiment 1 in that: specifically, the connector 5 is a frustum-shaped structure, the structure of the end cover 4 corresponds to the structure of the connector 5, and the end cover 4 and the connector 5 are connected by an interference fit.

[0047] By adopting the above technical solution, the disassembly and assembly between the end cover 4 and the connector 5 is facilitated.

[0048] Example 3

[0049] The present embodiment is different from the first embodiment in that: specifically, it further comprises an elbow 7, and the elbow 7 is arranged above the connector.

[0050] By adopting the above technical solution, the elbow 7 is arranged so that the extraction of PRP through the extraction syringe 8 can be performed horizontally, so that the PRP can be extracted more smoothly and the accuracy of the extraction can be ensured.

[0051] Furthermore, a method for implementing a PRP extraction device according to the present invention comprises the following steps:

[0052] (a) Injecting blood into the extraction tube 3 through the connector 5;

[0053] (ii) Cover the end cap 4 and place the extraction tube 3 into a centrifuge for centrifugation;

[0054] (iii) After centrifugation, open the end cap 4, connect the extraction syringe 8 to the connector 5 through the elbow 7, and extract the PP (plasma) and PRP liquid in the upper layer of the extraction tube 3;

[0055] (iv) injecting the extracted PP and PRP liquids into a new extraction tube 3;

[0056] (V) Repeat step (II);

[0057] (VI) The PP liquid in the upper layer is extracted through the extraction syringe 8, and then the remaining PRP liquid in the extraction tube 3 is extracted through a new extraction syringe 8.

[0058] In summary, the present invention extracts PRP through the extraction tube 3, and there is no need to insert a long needle for extraction, which reduces the interference of human factors. The extracted PRP has higher purity and is more stable, so that leukocyte-rich platelet-rich plasma (L-PRP), leukocyte-poor platelet-rich plasma (P-PRP) and injectable platelet-rich fibrin (i-PRF) can be extracted; the connector 5 of the present invention is provided with an end cap 4, and the connector 5 is sealed by the end cap 4 to prevent blood from being thrown out of the connector 5 during centrifugation; the bottom of the extraction tube 3 of the present invention is provided with a base 1, and the piston 2 is limited by the base 1, so that the extraction tube 3 can be prevented from being thrown out during the centrifugation process; the circumference of the lower end of the extraction tube 3 of the present invention is provided with an air hole 6 close to the base 1, which is convenient for the movement of the piston 2 in the extraction tube 3 when injecting blood or drawing.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PRP extraction device, comprising an extraction tube, characterized in that: The upper end of the extraction tube is provided with a connector, the interior of the extraction tube is provided with a piston, the bottom of the extraction tube is provided with a base, and the circumference of the lower end of the extraction tube is provided with an air hole close to the base; The connector is provided with an end cap; The connector is a frustum-shaped structure, the structure of the end cover corresponds to the structure of the connector, and the end cover and the connector are connected by interference fit; It also includes an elbow, which is arranged above the connecting head; The connector is sealed by the end cap to prevent blood from being thrown out of the connector during centrifugation; The piston is limited by the base, so as to prevent the piston from being thrown out during the centrifugation of the extraction tube; An air hole is provided on the circumference of the lower end of the extraction tube close to the base to facilitate the movement of the piston in the extraction tube when injecting or extracting blood; The setting of the elbow allows the extraction of PRP through the extraction syringe to be performed horizontally, so that PRP can be extracted more smoothly and the accuracy of the extraction can be ensured.

2. A PRP extraction device according to claim 1, characterized in that: The end cover is connected to the connector through threaded engagement.

3. A PRP extraction device according to claim 1, characterized in that: The base is connected to the extraction pipe through threaded engagement.

4. A method for implementing a PRP extraction device according to any one of claims 1 to 3, characterized in that: The following steps are involved: (1) Inject blood into the extraction tube through the connector; (2) Cover the end cap and place the extraction tube into a centrifuge for centrifugation; (iii) After centrifugation, open the end cap, connect the extraction syringe to the connector through the elbow, and extract the PP and PRP liquid in the upper layer of the extraction tube; (iv) Inject the extracted PP and PRP liquids into a new extraction tube; (V) Repeat step (II); (VI) Draw out the PP liquid on the upper layer through the extraction syringe, and then use a new extraction syringe to draw out the remaining PRP liquid in the extraction tube.

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