A cleaning device for soft tissues on the surface of long bones

Abstract

The present invention relates to a cleaning device for soft tissues on the surface of long bones, which comprises a cylindrical housing, an annular scraping blade and a plurality of fixing bolts. The cylindrical housing is composed of two semi-cylindrical shells that are closed to each other. One end of the two semi-cylindrical shells is connected by a hinge, and the other end is connected by a buckle. The cylindrical housing is provided with a long strip hole and a plurality of threaded holes. The long strip hole is arranged along the axial direction of the cylindrical housing on the outer wall of the cylindrical housing. The fixing bolts pass through the threaded holes. The annular scraping blade comprises a long strip handle and an arc blade group that are connected to each other. The arc blade group is located inside the cylindrical housing. The arc blade group comprises a plurality of arc blades. The plurality of arc blades are sequentially connected by hinges. The arc blades at both ends of the arc blade group are connected by a buckle. Compared with the prior art, the present invention significantly improves the convenience of cleaning, shortens the operation time, reduces the pollution risk, and at the same time, the annular scraping blade fits the bone surface better, improves the cleaning efficiency and avoids damaging the bone mass.

Description

Technical Field

[0001] The present invention relates to a biological experimental instrument, and in particular to a cleaning device for soft tissues on the surface of long bones. Background Art

[0002] In biological experiments, primary cells are often used for experiments such as culture, drug intervention, and gene inhibition. Among them, primary bone marrow mesenchymal stem cells of animals have strong multi-directional differentiation potential and are an extremely important cell source. Usually, primary bone marrow mesenchymal stem cells are obtained from the femurs and tibias of rabbits, rats, or mice. The current common practice is as follows: soak and disinfect in alcohol for 5 minutes; perform aseptic operation to separate the tibia and femur, remove the soft tissues such as muscles on the surface, repeatedly rinse with PBS and then place in α-MEM medium; cut off the upper and lower epiphyses of the tibia and femur respectively, and rinse the bone marrow cavity; pipette the bone marrow rinse solution in the culture dish to eliminate cell clusters; centrifuge, discard the supernatant, add α-MEM complete medium to resuspend the cells again and inoculate them into a cell culture dish, and place them in an incubator at 37°C and 5% CO2 for culture.

[0003] In the above steps, it is very important to perform aseptic operation to separate the femur and tibia. It is necessary to separate the muscles, tissues, etc. on the bone surface cleanly to avoid mixing other impurity cells into the primary stem cells and affecting subsequent experiments. Currently, this step is all carried out by manual separation. Specifically, the operator holds the bone with a hemostat in one hand and carefully separates the soft tissues with scissors in the other hand. The problems brought about are as follows: 1. It is inconvenient to operate with scissors, the operation time is prolonged, and it is easy to cause contamination to the operation; 2. It is not firmly held, resulting in the bone falling on the table and affecting sterility; 3. The scissors are easy to damage the bone quality, resulting in experimental failure. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a cleaning device for soft tissues on the surface of long bones to achieve rapid and efficient cleaning of soft tissues on long bones.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A cleaning device for soft tissues on the surface of long bones, comprising a cylindrical shell, an annular scraper and a plurality of fixing bolts. The cylindrical shell is composed of two semi-cylindrical shells that are closed to each other. One end of the two semi-cylindrical shells is connected by a hinge, and the other end is connected by a buckle. The cylindrical shell is provided with a long strip hole and a plurality of threaded holes. The long strip hole is arranged along the axial direction of the cylindrical shell on the outer wall of the cylindrical shell. The fixing bolts pass through the threaded holes. The annular scraper includes a long strip handle and an arc blade group that are connected to each other. The arc blade group is located inside the cylindrical shell. The long strip handle passes through the long strip hole from the inside to the outside. The arc blade group includes a plurality of arc blades. The plurality of arc blades are sequentially connected by hinges. The arc blades at both ends of the arc blade group are connected by a buckle.

[0007] Further, the outermost diameter of the arc blade group is 0.3 - 0.5 cm smaller than the inner wall diameter of the cylindrical shell.

[0008] Further, one end of the fixing bolt located inside the cylindrical shell is provided with a buffer pad, and the end located outside the cylindrical shell is provided with a knob.

[0009] Further, the threaded holes are evenly distributed on the same horizontal plane at the center of the cylindrical shell.

[0010] Further, at least two threaded holes are distributed on the cylindrical shell.

[0011] Further, it includes two annular scrapers. The cylindrical shell is provided with two long strip holes, and the two long strip holes are arranged collinearly along the axial direction of the cylindrical shell, respectively on the upper and lower sides of the horizontal plane where the threaded holes are located. Each annular scraper is correspondingly connected to a long strip hole.

[0012] Further, the cross-section of the arc blade is a water droplet shape, and its tip points to the center of the circle.

[0013] Further, a handle is provided on the cylindrical shell.

[0014] Further, the cylindrical shell is a transparent shell.

[0015] Further, the inner diameter of the arc blade group is 0.5 - 2 cm.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention quickly fixes the long bone through the cylindrical shell and the fixing bolts, and then efficiently cleans the soft tissues on the bone surface through the annular scraper, significantly improving the convenience of cleaning, shortening the operation time, reducing the pollution risk. At the same time, the annular scraper fits the bone surface more closely, improving the cleaning efficiency and avoiding damaging the bone mass.

[0018] 2. A handle is provided on the cylindrical shell, which is convenient for an operator to hold with one hand for subsequent operations. Description of the Drawings

[0019] Figure 1 It is a side view three-dimensional schematic diagram of the present invention.

[0020] Figure 2 It is a structural schematic diagram of the cylindrical shell.

[0021] Figure 3 It is a structural schematic diagram of the annular scraper.

[0022] Figure 4 It is a cross-sectional schematic diagram of the arc-shaped blade.

[0023] Figure 5 It is a top view three-dimensional schematic diagram of the present invention.

[0024] Reference numerals: 1, cylindrical shell; 1a, semi-cylindrical shell; 11, long slot; 12, threaded hole; 13, handle; 2, annular scraper; 21, long handle; 22, arc-shaped blade; 3, fixing bolt; 4, long bone. Detailed Description of the Invention

[0025] The present invention will be described in detail below with reference to the drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention, and gives the detailed implementation manner and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0026] As Figure 1 and Figure 2 shown, this embodiment provides a cleaning device for soft tissues on the surface of long bones, including a cylindrical shell 1, an annular scraper 2 and a plurality of fixing bolts 3.

[0027] The cylindrical shell 1 is composed of two semi-cylindrical shells 1a that are joined together. One end of the two semi-cylindrical shells 1a is connected by a hinge, and the other end is connected by a snap. Thus, after opening the snap of the cylindrical shell 1, it can be opened and closed in half to enable the placement of the annular scraper 2 and the long bone 4. There are long slots 11 and multiple threaded holes 12 provided on the cylindrical shell 1. The long slots 11 are arranged along the axial direction of the cylindrical shell 1 on the outer wall of the cylindrical shell 1, and the fixing bolts 3 pass through the threaded holes 12. Generally, the threaded holes 12 can be evenly distributed on the same horizontal plane in the center of the cylindrical shell 1, and at least two threaded holes 12 are provided so that the fixing bolts 3 pass through the threaded holes 12 to fix the internal long bone 4. In this embodiment, it is preferably to use three threaded holes 12 and three fixing bolts 3. The long slots 11 are arranged along the axial direction of the cylindrical shell 1 on the outer wall of the cylindrical shell 1. In this embodiment, two long slots 11 are provided, and the two long slots 11 are collinear along the axial direction of the cylindrical shell 1 and are located on the upper and lower sides of the horizontal plane where the threaded holes 12 are located. One end of the fixing bolt 3 located inside the cylindrical shell 1 is provided with a buffer pad to avoid excessive pressure on the long bone 4; the end located outside the cylindrical shell 1 is provided with a knob to further improve the operation convenience. A handle 13 is also provided on the cylindrical shell 1, and the handle 13 is provided with anti-slip patterns for easy single-handed holding by the operator. The cylindrical shell 1 is a transparent shell and can be made of plastic material, which is convenient for the operator to observe and operate.

[0028] As Figure 3 shown, each annular scraper 2 includes a long strip handle 21 and an arc blade group that are connected to each other. The arc blade group generally includes multiple arc blades 22, and the arc blades 22 are sequentially connected by hinges, and the arc blades 22 at both ends are connected by snaps. In this embodiment, the annular scraper 2 preferably uses two arc blades 22 to enable the placement of the long bone 4. The annular scraper 2 is located inside the cylindrical shell 1, and the long strip handle 21 passes through the long slot 11 from the inside to the outside. In this embodiment, two annular scrapers 2 are correspondingly connected to two long slots 11 respectively for cleaning the soft tissues at the upper and lower ends of the long bone 4. The inner diameter of the arc blade group is generally 0.5 - 2 cm, preferably 1 cm, and the outermost diameter of the arc blade group is generally 0.3 - 0.5 cm smaller than the inner wall diameter of the cylindrical shell 1, preferably 0.5 cm. Thus, the annular scraper 2 can be slightly flipped and tilted inside the cylindrical shell 1 to scrape the side wall of the long bone 4. As Figure 4 shown, the cross-section of the arc blade 22 is a water droplet shape, and its tip points to the center of the circle to avoid damaging the inner wall of the cylindrical shell 1 during the flipping and tilting process and make the movement smoother.

[0029] The working principle of this embodiment is: As Figure 5As shown, the long bone 4 is fixed to the center inside the cylindrical housing 1 by three fixing bolts 3 and is also located in the middle of the annular scraper 2. The annular scraper 2 is moved up and down, back and forth, and left and right through the long handle 21 to separate the soft tissues on the bone surface, etc. After the cleaning is completed, scissors are used against the upper and lower ends of the cylindrical housing 1 to cut off the long bone 4 and continue with the subsequent operations.

[0030] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in this technical field based on the concept of the present invention through logical analysis, reasoning, or limited experiments on the basis of the prior art should fall within the protection scope determined by the claims.

Claims

1. A cleaning device for soft tissues on the surface of long bones, characterized in that, It includes a cylindrical shell (1), an annular scraping knife (2) and a plurality of fixing bolts (3). The cylindrical shell (1) is composed of two semi-cylindrical shells (1a) that are closed to each other. One end of the two semi-cylindrical shells (1a) is connected by a hinge, and the other end is connected by a buckle. The cylindrical shell (1) is provided with a long strip hole (11) and a plurality of threaded holes (12). The long strip hole (11) is arranged along the axial direction of the cylindrical shell (1) on the outer wall of the cylindrical shell (1). The fixing bolt (3) passes through the threaded hole (12). The annular scraping knife (2) includes a long strip handle (21) and an arc-shaped blade group that are connected to each other. The arc-shaped blade group is located inside the cylindrical shell (1). The long strip handle (21) passes through the long strip hole (11) from the inside to the outside. The arc-shaped blade group includes a plurality of arc-shaped blades (22). The plurality of arc-shaped blades (22) are sequentially connected by hinges. The arc-shaped blades (22) at both ends of the arc-shaped blade group are connected by a buckle; The outermost diameter of the arc-shaped blade group is 0.3 - 0.5 cm smaller than the inner diameter of the cylindrical shell (1); One end of the fixing bolt (3) located inside the cylindrical shell (1) is provided with a buffer pad, and the end located outside the cylindrical shell (1) is provided with a knob.

2. The cleaning device for soft tissues on the surface of long bones according to claim 1, characterized in that, The threaded holes (12) are evenly distributed on the same horizontal plane at the center of the cylindrical shell (1).

3. The cleaning device for soft tissues on the surface of long bones according to claim 2, wherein, There are at least two threaded holes (12) distributed on the cylindrical shell (1).

4. A cleaning device for soft tissues on the surface of long bones according to claim 2, characterized in that, It includes two annular scraping knives (2). The cylindrical shell (1) is provided with two long strip holes (11), and the two long strip holes (11) are arranged collinearly along the axial direction of the cylindrical shell (1), respectively on the upper and lower sides of the horizontal plane where the threaded holes (12) are located. Each annular scraping knife (2) is correspondingly connected to a long strip hole (11).

5. A cleaning device for soft tissues on the surface of long bones according to claim 1, characterized in that, The cross-section of the arc-shaped blade (22) is a water droplet shape, and its tip points to the center of the arc-shaped blade group.

6. The cleaning device for soft tissues on the surface of long bones according to claim 1, characterized in that, The cylindrical shell (1) is provided with a handle (13).

7. A cleaning device for soft tissues on the surface of long bones according to claim 1, characterized in that, The cylindrical shell (1) is a transparent shell.

8. A cleaning device for soft tissues on the surface of long bones according to claim 1, characterized in that, The inner diameter of the arc-shaped blade group is 0.5 - 2 cm.

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