Platelet-rich enrichment device

Abstract

A platelet-rich enrichment device relates to the technical field of centrifugal separation and is used for solving the problems that an existing device for separating and extracting platelet-rich plasma is complex in structure and cannot guarantee the concentration of the extracted platelet-rich plasma. Comprising a tube body and a tube cap, one end of the tube body is open, the other end of the tube body is sealed, the tube cap is located at one end of the tube body, and a guide tube extending into the tube body and a plug for sealing the guide tube are arranged on the tube cap. Compared with the prior art, the structure of the utility model is simpler, so that the processing and manufacturing process is simple. Besides, after the tube is placed on a centrifugal machine to be centrifuged once, the concentrated red blood cells at the bottom of the tube body can be extracted only by opening the plug and connecting an injector for extracting the concentrated red blood cells with the tube cap. And then, after the tube body is placed on a centrifugal machine for secondary centrifugation, an injector for extracting the platelet-rich plasma is connected with the tube cap, so that the platelet-rich plasma with higher concentration can be extracted.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal separation, in particular to a platelet-rich enrichment device. Background Art

[0002] Centrifugal separation technology is used to separate and extract certain specific components of a liquid according to the different specific gravities of different components in the liquid. Chinese Patent 2021217445065 discloses a separation and extraction device, including a tube body, an upper cover, a lower cover, a piston and a sealing assembly; the tube body is provided with a cavity, the cavity includes an upper cavity, a lower cavity, and a neck connected between the upper cavity and the lower cavity; the upper cover is movably sealed at the upper end of the tube body, and a through hole is provided thereon; the lower cover is sleeved at the lower end of the tube body and is threadedly connected to the tube body; the piston is movably sealed in the lower cavity and in contact with the lower cover, and the piston changes its position in the lower cavity as the lower cover rotates.

[0003] The sealing component is arranged in the through hole. The utility model connects the lower cover to the tube body by threads, and the lower cover drives the piston to move in the tube body, thereby changing the position of the liquid surface when the tube body is filled with liquid, and can adjust a specific material layer to the neck position during centrifugal extraction, so that the thickness of the material layer is increased, which is convenient for extraction; the lower cover is threadedly connected to the tube body, which is more convenient to operate, and has a positioning function, which is conducive to maintaining the position of the piston in the tube body. When the above-mentioned separation and extraction device is used, the silicone outer cover is opened, and the needle is inserted into the silicone inner cover until the neck position, so as to directly extract the target substance. The separation and extraction device with the above-mentioned structure is placed in a centrifuge for one centrifugation to extract platelet-rich plasma, and the concentration of platelet-rich plasma is difficult to guarantee. Utility Model Content

[0004] The utility model aims to provide a platelet-rich enrichment device with a simple structure, which is used to solve the problem that the existing device for separating and extracting platelet-rich plasma has a complex structure and cannot ensure the concentration of the extracted platelet-rich plasma.

[0005] The utility model solves the technical problem by adopting the following technical solution: a platelet-rich enrichment device comprises a tube body and a tube cap, characterized in that one end of the tube body is open and the other end is sealed, the tube cap is located at one end of the tube body, and the tube cap has a catheter extending into the tube body and a plug sealing the catheter.

[0006] Furthermore, the other end of the tube body has a contraction portion, and the outer diameter of the contraction portion is smaller than the outer diameter of the main body of the tube body.

[0007] Furthermore, one end of the pipe cap has a mounting groove, and one end of the pipe body extends into the mounting groove and is threadedly connected to the pipe cap.

[0008] Furthermore, one end of the tube body is bonded to the tube cap.

[0009] Furthermore, one end of the tube body is plug-connected to the tube cap.

[0010] Furthermore, the other end of the tube cap is snap-connected to the plug.

[0011] Furthermore, after the pipe cap is installed on one end of the pipe body, one end of the conduit extends to the end of the other end of the pipe body.

[0012] Furthermore, the other end of the catheter is bonded to the tube cap.

[0013] Furthermore, the other end of the conduit is threadedly connected to the pipe cap.

[0014] Furthermore, the other end of the pipe cap has a mounting ring, and the mounting ring is threadedly connected to the plug.

[0015] The beneficial effects of the utility model are as follows: the structure of the utility model is relatively simple compared with the prior art, and thus the manufacturing process is simple. In addition, after the utility model is placed on a centrifuge for one centrifugation, it is only necessary to open the stopper and connect the syringe for extracting concentrated red blood cells to the tube cap to extract the concentrated red blood cells at the bottom of the tube body. Subsequently, after the tube body is placed on a centrifuge for a second centrifugation, the syringe for extracting platelet-rich plasma is connected to the tube cap to extract platelet-rich plasma with a higher concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a front view of the utility model;

[0018] Figure 3 It is a top view of the utility model;

[0019] Figure 4 for Figure 2 AA section view in;

[0020] Figure 5 This is a schematic diagram of blood after one centrifugation in the present invention;

[0021] Figure 6 for Figure 5 Schematic diagram after extraction of concentrated red blood cells;

[0022] In the figure: 1 tube body, 11 contraction part, 2 tube cap, 21 air hole, 22 mounting ring, 23 mounting groove, 24 catheter, 3 plug, 31 threaded hole, 4 platelet-poor plasma, 5 platelet-rich plasma, 6 concentrated red blood cells. DETAILED DESCRIPTION

[0023] like Figures 1 to 6 As shown, the utility model comprises a tube body 1, a tube cap 2 and a plug 3. The utility model is described in detail below in conjunction with the accompanying drawings.

[0024] like Figures 1 to 6 As shown, the platelet-rich enrichment device includes a tube body 1 and a tube cap 2, one end of the tube body 1 is open and the other end is sealed, and the tube cap 2 is located at one end of the tube body 1. The assembly method between the tube cap 2 and the tube body 1 includes the following three methods: ① One end of the tube cap 2 has an annular mounting groove 23, one end of the tube body 1 has an external thread, one end of the tube body 1 extends into the mounting groove 23 and is threadedly connected to the tube cap 2, thereby realizing a detachable connection between the tube cap 2 and the tube body 1. ② One end of the tube cap 2 has an annular mounting groove 23, one end of the tube body 1 extends into the mounting groove 23 and is plugged and connected to the tube cap 2. At this time, there is a certain friction between the tube body 1 and the tube cap 2, and the separation between the tube body 1 and the tube cap 2 under the action of the friction force requires manual force. ③ One end of the tube cap 2 has an annular mounting groove 23, one end of the tube body 1 extends into the mounting groove 23, and glue is applied between one end of the tube body 1 and the mounting groove 23, thereby bonding and fixing the tube body 1 and the tube cap 2.

[0025] like Figure 4 As shown, the pipe cap 2 has a conduit 24 extending into the pipe body 1 and a plug 3 for sealing the conduit 24. The conduit 24 is a slender tube with two open ends. One end of the conduit 24 is used to extend into the other end (i.e., the sealed end) of the pipe body 1, and the other end of the conduit 24 is fixed on the pipe cap 2. After the pipe cap 2 is installed at one end of the pipe body 1, one end of the conduit 24 extends to the end of the other end of the pipe body 1. The other end of the conduit 24 and the pipe cap 2 can be threadedly connected and assembled. In this case, an external thread is set on the other end of the conduit 24, and a threaded hole assembled with the other end of the conduit 24 is set on the pipe cap 2. The other end of the conduit 24 and the pipe cap 2 can also be integrally manufactured and formed. In addition, the other end of the conduit 24 and the pipe cap 2 can also be bonded and fixedly connected.

[0026] One end of the conduit 24 may be either an oblique opening or a flat opening. Figure 4 As shown, when one end of the catheter 24 is designed to be oblique, it is convenient for the catheter 24 to absorb the target substance.

[0027] The plug 3 is a cylindrical structure, and a threaded hole 31 is provided in the end face of the plug 3. The other end of the pipe cap 2 is provided with a mounting ring 22, and the outer wall of the mounting ring 22 is provided with an external thread. The mounting ring 22 extends into the threaded hole 31 and is threadedly connected with the threaded hole 31, thereby realizing the threaded connection between the pipe cap 2 and the plug 3. The inner cavity of the mounting ring 22 is connected with the inner cavity of the catheter 24, and then the inner cavity of the catheter 24 is connected with the outside through the inner cavity of the mounting ring 22, so that after the syringe is connected to the mounting ring 22, the catheter 24 is connected with the syringe. The other end of the pipe cap 2 and the plug 3 can also be connected in a snap-fit ​​manner, thereby facilitating the installation and removal of the pipe cap 2 and the plug 3.

[0028] The other end of the tube body 1 has a contraction portion 11, the outer diameter of which is smaller than the outer diameter of the main body of the tube body 1. The arrangement of the contraction portion 11 makes the height of the liquid in the contraction portion 11 relatively large, thereby facilitating the extraction of high-concentration and high-purity platelet-free plasma.

[0029] To ensure smooth extraction when extracting liquid from the bottom of the tube body 1 , an air hole 21 is provided on the tube cap 2 .

[0030] The following describes the method of use of the utility model:

[0031] S1, remove the stopper 3, and add the blood to be separated into the tube body 1 through a syringe; during operation, the syringe is connected to the tube cap 2, and the piston of the syringe is pushed so that the blood in the syringe flows into the catheter 24;

[0032] S2, install the stopper 3 back on the tube cap 2, and place the tube body 1 in a centrifuge for centrifugation;

[0033] S3. After one centrifugation is completed, Figure 5 As shown, at this time, the blood in the tube body 1 is layered into platelet-poor plasma 4, platelet-rich plasma 5 and concentrated red blood cells 6 arranged in sequence from top to bottom, the stopper 3 is removed, and the syringe for extracting the concentrated red blood cells 6 is connected to the tube cap 2 to extract the concentrated red blood cells 6 at the bottom of the tube body 1;

[0034] S4, put the stopper 3 back on the tube cap 2, put the tube body 1 back into the centrifuge for a second centrifugation. Figure 6 As shown, the bottom of the tube body 1 is high-concentration platelet-rich plasma 5;

[0035] S5. Remove the stopper 3 on the tube body 1 after the second centrifugation, connect the syringe for extracting platelet-rich plasma 5 to the tube cap 2, and extract the high-concentration platelet-rich plasma 5.

[0036] The structure of the utility model is relatively simple compared to the prior art, and thus the manufacturing process is simple. In addition, after the utility model is placed on a centrifuge for one centrifugation, it is only necessary to open the stopper and connect the syringe for extracting concentrated red blood cells 6 to the tube cap 2 to extract the concentrated red blood cells at the bottom of the tube body. Subsequently, after the tube body is placed on a centrifuge for a second centrifugation, the syringe for extracting platelet-rich plasma 5 is connected to the tube cap 2 to extract platelet-rich plasma with a higher concentration.

Claims

1. A platelet-rich enrichment device, comprising a tube body and a tube cap, characterized in that: One end of the tube body is open and the other end is sealed. The tube cap is located at one end of the tube body. The tube cap has a catheter extending into the tube body and a plug sealing the catheter. The other end of the tube body has a contraction portion, and the outer diameter of the contraction portion is smaller than the outer diameter of the tube body. After the tube cap is installed at one end of the tube body, one end of the catheter extends to the end of the other end of the tube body.

2. The platelet-rich enrichment device according to claim 1, characterized in that: One end of the pipe cap is provided with a mounting groove, and one end of the pipe body extends into the mounting groove and is threadedly connected with the pipe cap.

3. The platelet-rich enrichment device according to claim 1, characterized in that: One end of the tube body is bonded and connected to the tube cap.

4. The platelet-rich enrichment device according to claim 1, characterized in that: One end of the tube body is plug-connected with the tube cap.

5. The platelet-rich enrichment device according to claim 1, characterized in that: The other end of the tube cap is snap-connected with the plug.

6. The platelet-rich enrichment device according to claim 4, characterized in that: The other end of the catheter is bonded and connected to the tube cap.

7. The platelet-rich enrichment device according to claim 6, characterized in that: The other end of the conduit is threadedly connected to the pipe cap.

8. The platelet-rich enrichment device according to claim 1, characterized in that: The other end of the pipe cap is provided with a mounting ring, and the mounting ring is threadedly connected with the plug.

Images