Blood derivative taking-out device

Abstract

The utility model discloses a blood derivative taking-out device which comprises a tube body inserted into a centrifugal tube and an upper cover located at the upper end of the tube body and provided with a first sliding groove and a second sliding groove, and a first movable rod and a second movable rod are movably connected into the first sliding groove and the second sliding groove respectively. The first movable rod and the second movable rod downwards penetrate through the upper cover and extend to the lower portion of the pipe body to be connected with a cutting piece, a fixing ring fixedly connected with the inner wall of the pipe body is arranged on the lower portion of the pipe body, and the cutting piece comprises a first cutting plate and a second cutting plate which are hinged to the fixing ring and oppositely arranged. The close sides of the first cutting plate and the second cutting plate are movably connected to the first movable rod and the second movable rod correspondingly. The blood derivative CGF / PRF taking-out process is simple and easy to operate, the blood derivative CGF / PRF cannot be torn, the blood derivative in the tube body does not make contact with the outside, pollution caused by the fact that the blood derivative CGF / PRF makes contact with air is prevented, and the follow-up clinical use effect is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of blood component extraction technology, and in particular to a blood derivative extraction device. Background Technology

[0002] With the continuous development of dental implantology, bone grafting has gradually become an ideal treatment option for tooth loss and edentulism. To improve the success rate of bone grafting and the speed of wound healing, and to resist the influence of adverse intraoral factors, since 2019, dental clinics have gradually used patient-derived blood derivatives such as CGF / PRF as a means to promote bone graft or wound healing. The specific procedure is as follows: 30-40 ml of blood is drawn from the patient, and 10 ml is placed in each centrifuge tube. The tube is then centrifuged at a high speed of 3000 rpm for 14 minutes. The blood will separate into two layers: the lower layer consists of dark red ruptured red blood cells and a portion of serum, approximately 5 ml; the upper layer is a pale yellow CGF / PRF segment, approximately 5 ml in volume. The upper layer is clinically necessary and contains a large amount of concentrated growth factors, which can improve the success rate of bone grafting and the speed of wound healing.

[0003] Currently, the clinical method for removing CGF / PRF derivatives after centrifugation involves using forceps or a needle holder to extract the centrifuged blood derivative from the centrifuge tube. Then, medical staff use scissors to cut off the lower half of the derivative. The CGF / PRF is then compressed into a shape for subsequent clinical use. However, this process is rather crude, and the removal of the blood derivative is complex. There is a risk of tearing the CGF segment if not handled carefully during removal. Furthermore, the blood derivative is easily exposed to air and contaminated during the removal process, significantly reducing its effectiveness in subsequent clinical use. Utility Model Content

[0004] To address the technical problems of existing technologies, such as the complex blood derivative removal process, the risk of tearing of the CGF segment due to slight carelessness during removal, and the easy exposure of blood derivatives to air for contamination during removal, which greatly reduces the effectiveness of subsequent clinical use, this utility model provides the following technical solution.

[0005] This utility model discloses a blood derivative extraction device, comprising a tube body inserted into a centrifuge tube and an upper cover with a first groove and a second groove located at the upper end of the tube body. A first movable rod and a second movable rod are movably connected in the first groove and the second groove, respectively. The first movable rod and the second movable rod pass downward through the upper cover and extend to the lower part of the tube body, where a cutting component is connected. The lower part of the tube body is provided with a fixing ring fixedly connected to the inner wall of the tube body. The cutting component includes a first cutting plate and a second cutting plate that are hinged to the fixing ring and are disposed opposite to each other. The sides of the first cutting plate and the second cutting plate that are close to each other are movably connected to the first movable rod and the second movable rod, respectively.

[0006] As a further technical solution, both the first cutting plate and the second cutting plate are connected to a hinge member connected to the fixed ring on the side near the fixed ring.

[0007] As a further technical solution, the lower end of the tube is provided with an insertion end, and the inner radial direction of the insertion end gradually increases downward.

[0008] As a further technical solution, the upper cover is provided with a positioning member at the center position that separates the first slide groove and the second slide groove. The positioning member is provided with a first positioning groove for positioning the first movable rod and a second positioning groove for positioning the second movable rod on both sides.

[0009] As a further technical solution, the first movable rod and the second movable rod have the same structure, and the upper part of the first movable rod is provided with a positioning block with an outer diameter larger than the inner diameter of the first positioning groove.

[0010] As a further technical solution, the upper part of the first cutting plate and the second cutting plate is provided with a first connecting ring movably connected to the lower end of the first movable rod and a second connecting ring movably connected to the lower end of the second movable rod.

[0011] As a further technical solution, both the first cutting plate and the second cutting plate are semi-circular plate structures, and when they are horizontal, they cut the blood derivatives.

[0012] The beneficial effects of this invention are as follows: A hollow, transparent tube can be directly inserted into a centrifuge tube. The lower end of the tube covers the blood derivative CGF / PRF to be extracted. Then, by operating the first and second movable rods, the first and second cutting plates of the cutting element move closer together and cut the blood derivative CGF / PRF. The cut CGF / PRF is supported by the horizontally positioned first and second cutting plates. Afterward, the tube can be removed to complete the extraction of the blood derivative CGF / PRF. This extraction process is simple and easy to operate, does not tear the blood derivative CGF / PRF, and prevents the blood derivative inside the tube from contacting the outside environment, thus preventing contamination from air contact and ensuring the effectiveness of subsequent clinical use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the blood derivative extraction device of this utility model;

[0014] Figure 2 This is a schematic diagram of the bottom structure of the blood derivative extraction device of this utility model;

[0015] Figure 3This is a schematic diagram of the connection of the cutting component of the blood derivative extraction device of this utility model;

[0016] Figure 4 This is a schematic diagram of the cutting component of the blood derivative extraction device of this utility model;

[0017] Figure 5 This is a schematic diagram of the positioning component of the blood derivative extraction device of this utility model;

[0018] In the figure: 1-tube body; 101-insertion end; 2-top cover; 201-first slide groove; 202-second slide groove; 3-positioning component; 301-first positioning groove; 302-second positioning groove; 4-first movable rod; 401-operating ring; 402-positioning block; 5-second movable rod; 6-cutting component; 601-first cutting plate; 602-second cutting plate; 603-hinge component; 604-first connecting ring; 605-second connecting ring; 7-fixing ring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0020] In the description of this utility model, it should be understood that the terms "upper" and "lower" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] like Figure 1 and Figure 2 As shown, this utility model discloses a blood derivative extraction device, comprising a tube body 1 inserted into a centrifuge tube. The tube body 1 is a hollow, transparent glass tube, which facilitates observation of the insertion depth and status when inserted into the centrifuge tube, and allows for accurate extraction of the upper layer of blood derivatives. Both the upper and lower ends of the tube body 1 have openings. The lower end of the tube body 1 has an insertion end 101, the inner diameter of which gradually increases downwards to facilitate smooth insertion of the tube body 1 into the centrifuge tube and reduce collisions with the blood derivatives.

[0022] like Figure 3 and Figure 5 As shown, in a preferred embodiment, the upper end of the tube body 1 is sealed with a top cover 2. The top cover 2 has a first sliding groove 201 and a second sliding groove 202 on both sides, which may or may not be connected. A first movable rod 4 and a second movable rod 5 are movably connected within the first sliding groove 201 and the second sliding groove 202, respectively. The first movable rod 4 and the second movable rod 5 have identical structures and are preferably made of very thin medical-grade stainless steel to reduce the impact of their movement on the blood derivatives. The first movable rod 4 and the second movable rod 5 pass downwards through the top cover 2 and extend to the lower part of the tube body 1, where a cutting element 6 is connected. The cutting element 6 can cut and sever the upper layer of blood derivatives CGF / PRF inside the tube body 1 and can support the severed CGF / PRF, allowing the tube body 1 to be lifted for easy removal.

[0023] like Figure 4 As shown, in a preferred embodiment, the lower part of the tube body 1 is provided with a fixing ring 7, which is fixedly connected to the inner wall of the tube body 1. The fixing ring 7 is a thin ring made of medical stainless steel and is fixedly connected to the inner wall of the tube body 1. The cutting component 6 includes a first cutting plate 601 and a second cutting plate 602 that are hinged to the fixing ring 7 and are arranged opposite to each other. Both the first cutting plate 601 and the second cutting plate 602 are semi-circular plate structures, and when they are horizontal, they cut the blood derivatives.

[0024] Specifically, the first cutting plate 601 and the second cutting plate 602 form a near-circular structure, with a diameter smaller than the inner diameter of the tube 1, facilitating rotation of the first cutting plate 601 and the second cutting plate 602 within the tube 1. At this time, both the first cutting plate 601 and the second cutting plate 602 are connected to a hinge 603 connected to the fixing ring 7 on the side near the first cutting plate 601 and the second cutting plate 602. Both the first cutting plate 601 and the second cutting plate 602 can rotate around the hinge 603 as an axis, thus allowing them to rotate to a horizontal or inclined state. When the first cutting plate 601 and the second cutting plate 602 are tilted to a near-vertical state, the tube 1 can be inserted into the centrifuge tube, and the tilted first cutting plate 601 and the second cutting plate 602 do not damage the blood derivatives. When the first cutting plate 601 and the second cutting plate 602 simultaneously rotate to a horizontal state, the lower end of the blood derivatives can be cut off, facilitating the removal of the blood derivatives.

[0025] In a preferred embodiment, the adjacent sides of the first cutting plate 601 and the second cutting plate 602 are respectively movably connected to the first movable rod 4 and the second movable rod 5. In this case, the upper parts of the first cutting plate 601 and the second cutting plate 602 are provided with a first connecting ring 604 movably connected to the lower end of the first movable rod 4 and a second connecting ring 605 movably connected to the lower end of the second movable rod 5. Pulling the first movable rod 4 and the second movable rod 5 can drive the first cutting plate 601 and the second cutting plate 602 to rotate.

[0026] In a preferred embodiment, to facilitate accurate operation of the first movable rod 4 and the second movable rod 5, a positioning member 3 is provided at the center of the upper cover 2 to separate the first sliding groove 201 and the second sliding groove 202, allowing the first movable rod 4 to move within the first sliding groove 201 and the second movable rod 5 to move within the second sliding groove 202. The first movable rod 4 and the second movable rod 5 have the same structure, and the upper part of the first movable rod 4 is provided with a positioning block 401 whose outer diameter is larger than the inner diameter of the first positioning groove 301. The positioning member 3 has a first positioning groove 301 for positioning the first movable rod 4 and a second positioning groove 302 for positioning the second movable rod 5 on both sides. When the first movable rod 4 and the second movable rod 5 move to rotate the first cutting plate 601 and the second cutting plate 602 to a horizontal position, the first movable rod 4 is engaged in the first positioning groove 301, and the positioning block 401 is exactly attached to the upper end of the first positioning groove 301. The first movable rod 4 is stable, the first cutting plate 601 is stable, and the second movable rod 5 adopts the same principle and structure. At this time, the first cutting plate 601 and the second cutting plate 602 stably support the blood derivative in the tube body 1, and the tube body 1 can be removed.

[0027] The preferred embodiments and examples of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments and examples. Within the scope of knowledge possessed by those skilled in the art, various changes or equivalent substitutions can be made without departing from the concept of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A blood derivative removal device, characterized by: The device includes a tube (1) inserted into a centrifuge tube and an upper cover (2) located at the upper end of the tube (1) and having a first groove (201) and a second groove (202). A first movable rod (4) and a second movable rod (5) are movably connected in the first groove (201) and the second groove (202), respectively. The first movable rod (4) and the second movable rod (5) pass downward through the upper cover (2) and extend to the lower part of the tube (1) to be connected to a cutting element (6). The lower part of the tube (1) is provided with a fixing ring (7) fixedly connected to the inner wall of the tube (1). The cutting element (6) includes a first cutting plate (601) and a second cutting plate (602) that are hinged to the fixing ring (7) and are arranged opposite to each other. The sides of the first cutting plate (601) and the second cutting plate (602) that are close to each other are movably connected to the first movable rod (4) and the second movable rod (5), respectively.

2. The blood derivative extraction device according to claim 1, characterized in that: Both the first cutting plate (601) and the second cutting plate (602) are connected to a hinge (603) connected to the fixed ring (7) on the side near the fixed ring (7).

3. The blood derivative removal device of claim 1, wherein: The lower end of the tube body (1) is provided with an insertion end (101), and the inner radial direction of the insertion end (101) gradually increases downward.

4. The blood derivative removal device of claim 1, wherein: The upper cover (2) is provided with a positioning member (3) at the center position that separates the first slide groove (201) and the second slide groove (202). The positioning member (3) is provided with a first positioning groove (301) for positioning the first movable rod (4) and a second positioning groove (302) for positioning the second movable rod (5) on both sides respectively.

5. The blood derivative removal device according to claim 4, characterized in that: The first movable rod (4) and the second movable rod (5) have the same structure. The upper part of the first movable rod (4) is provided with a positioning block (401) with an outer diameter larger than the inner diameter of the first positioning groove (301).

6. The blood derivative extraction device of claim 1, wherein: The first cutting plate (601) and the second cutting plate (602) are provided with a first connecting ring (604) which is movably connected to the lower end of the first movable rod (4) and a second connecting ring (605) which is movably connected to the lower end of the second movable rod (5).

7. The blood derivative extraction device of claim 1, wherein: Both the first cutting plate (601) and the second cutting plate (602) are semi-circular plate structures, and when they are horizontal, they cut the blood derivatives.

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