A tool for muscle implant

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, disclose a kind of muscle implant tool. Muscle implant tool includes first implant piece, first implant piece is equipped with first crimping surface and second crimping surface, first crimping surface is used to crimp with the side of incision, second crimping surface is set away from first crimping surface, second crimping surface is used to crimp with the other side of incision, one end of first implant piece is equipped with the fitment, fitment is set along the length direction of first implant piece, one side of fitment is used to fit with muscle implant. The utility model is implanted by bluntly separating muscle by extruding muscle when implanting muscle implant, for sheet-shaped muscle implant, it will not appear the problem that the safety evaluation of implant is not accurate due to the formation of unexpected pathological structure caused by sheet-shaped muscle implant folding, and further difficult to evaluate the biological response caused by sheet-shaped muscle implant.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a tool for muscle implants. Background Technology

[0002] Biomedical textiles are widely used in implantation procedures, such as structural cardiac implants, stent grafts, or repairs of abdominal wall hernias. These biomedical textiles can perform multiple functions, such as occlusion, embolization protection, and blood flow transfer. Medical devices are indispensable tools in implantation procedures and are a crucial factor affecting implantation outcomes. In experiments applying medical devices to rabbit paraspinal muscles, sterile implants are inserted into the rabbit paraspinal muscles. After the clinical implantation cycle of the textile is completed, the implant is removed for pathological sampling and analysis.

[0003] The primary tool used for current muscle implants is forceps. When using forceps, the muscle is first cut with a scalpel, then a strip of fabric is grasped with the forceps and placed deep within the muscle tissue. The forceps are then released, leaving the fabric strip embedded in the muscle. However, when using forceps, the fabric strip may fold during implantation. A folded implant can clamp the muscle and create unintended pathological structures, making it difficult to assess the biological response caused by the fabric strip and leading to inaccurate safety evaluations of the implant. Utility Model Content

[0004] The purpose of this invention is to provide a tool for muscle implants, which implants muscle by bluntly separating the muscle through compression. For sheet-like muscle implants, this method avoids the problem of unexpected pathological structures caused by the folding of the sheet-like muscle implant, which makes it difficult to evaluate the biological response caused by the sheet-like muscle implant and leads to inaccurate safety evaluation of the implant.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A tool for muscle implants, comprising:

[0007] The first implant has a first pressing surface and a second pressing surface. The first pressing surface is used to press against one side of the incision. The second pressing surface is disposed opposite to the first pressing surface and is used to press against the other side of the incision. One end of the first implant has a fitting portion that extends along the length direction of the first implant. One side of the fitting portion is used to fit against a muscle implant.

[0008] In some possible implementations, the fitting portion is disposed at the outer edge of one end of the first implant and close to the first pressing surface, and the side of the fitting portion close to the second pressing surface is used to fit with the muscle implant.

[0009] In some possible implementations, the first implant has a guide cavity with both ends extending through opposite end faces of the first implant along its length. The guide cavity is used to pass through the rod-shaped muscle implant. The cavity wall of the guide cavity smoothly transitions to the surface of the fitting portion, so that the rod-shaped muscle implant passing through the guide cavity can fit into the fitting portion.

[0010] In some possible implementations, the fitting portion has an arc-shaped structure.

[0011] In some possible implementations, the muscle implant tool may further include a second implant that extends into the guide cavity and is used to abut against the rod-shaped muscle implant.

[0012] In some possible implementations, one end of the second implant is provided with a handle that can abut against the end face of the first implant away from the fitting portion.

[0013] In some possible implementations, the second implant is slidably connected to the wall of the guide cavity.

[0014] In some possible implementations, the second implant has a circular cross-section.

[0015] In some possible implementations, the outer wall surface of the first implant near the fitting portion is a conical surface.

[0016] In some possible implementations, the first implant has a circular cross-section.

[0017] The beneficial effects of this utility model are:

[0018] The tool for muscle implants provided by this utility model includes a first implant. When implanting a sheet-like muscle implant, the operator first makes an incision with a scalpel, then attaches the sheet-like muscle implant to the fitting area. Next, the first pressing surface of the first implant is used to press against one side of the incision. While pressing, the first implant is continuously inserted into the muscle along that side of the incision until the target position is reached. Then, the first implant is used to press against the opposite side of the incision (the other side of the incision) through a second pressing surface, causing the opposite muscle to adhere to the sheet-like muscle implant. Due to the adhesive nature of muscle tissue, the muscle tissue can adhere to the sheet-like muscle implant. Afterwards, the first implant is withdrawn, the muscle returns to its original state, the wound closes, and the sheet-like muscle implant remains in the body. During the insertion of the first implant into the muscle, because one side of the incision is continuously pressed, the sheet-like muscle implant remains attached to the fitting area and does not come into contact with the opposite muscle, thus preventing folding of the sheet-like muscle implant. Therefore, this invention uses a blunt dissection method by squeezing the muscle to implant the sheet-like muscle implant into the muscle. This avoids the problem of the sheet-like muscle implant folding and forming unexpected pathological structures, which makes it difficult to evaluate the biological response caused by the sheet-like muscle implant and leads to inaccurate safety evaluation of the implant. Attached Figure Description

[0019] Figure 1 This is an exploded view of the first implant and the second implant involved in this utility model;

[0020] Figure 2 This is a schematic diagram of an incision made with a scalpel, as described in this utility model.

[0021] Figure 3 This is a schematic diagram of one side of the incision pressed by the first pressing surface of the first implant, which is involved in this utility model.

[0022] Figure 4 This is a schematic diagram of the first implant involved in this utility model, which uses the second pressing surface to reversely press the opposite side of the incision muscle, i.e., the other side of the incision, so that the opposite side muscle adheres to the muscle implant.

[0023] Figure 5 This is a schematic diagram of the structure of the first implant that is withdrawn according to this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the rod-shaped muscle implant involved in this utility model, which passes through the guide cavity and fits into the fitting part.

[0025] In the picture:

[0026] 1. First implant; 11. Guide cavity; 12. Conical surface; 2. Fitting part; 3. Second implant; 4. Handle;

[0027] 100. Muscle implant; 200. Muscle; 201. Incision. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0032] like Figures 1 to 6As shown, this utility model provides a tool for muscle implants, including a first implant 1. The first implant 1 has a first pressing surface and a second pressing surface. The first pressing surface is used to press against one side of the incision 201. The second pressing surface is disposed opposite to the first pressing surface and is used to press against the other side of the incision 201. One end of the first implant 1 is provided with a fitting part 2, which extends along the length direction of the first implant 1. One side of the fitting part 2 is used to fit against the muscle implant 100.

[0033] When implanting a muscle implant of 100, such as Figure 2 As shown, the operator first makes an incision 201 with a scalpel, then attaches the muscle implant 100 to the fitting portion 2, and then, as... Figure 3 As shown, the first pressing surface of the first implant 1 is used to press against one side of the incision 201, causing the muscle 200 to be subjected to pressure in the F1 direction. Simultaneously, the first implant 1 extends continuously into the muscle 200 along that side of the incision 201 until the target position is reached; then, as... Figure 4 As shown, the first implant 1 is pressed against the muscle 200 on the opposite side of the incision 201 (i.e., the other side of the incision 201) through the second pressing surface, so that the muscle 200 is subjected to pressure in the F2 direction, causing the opposite muscle 200 to adhere to the muscle implant 100. Because the muscle tissue 200 is adhesive, it can adhere to the muscle implant 100; then, as... Figure 5 As shown, after the first implant 1 is withdrawn, the muscle 200 returns to its original state, the wound closes, and the muscle implant 100 remains in the body. Regarding the sheet-like muscle implant 100, during the insertion of the first implant 1 into the muscle 200, because one side of the incision 201 is constantly compressed, the sheet-like muscle implant 100 remains attached to the fitting portion 2 and does not contact the opposite side of the muscle 200, thus preventing folding. Therefore, this invention implants the muscle implant 100 into the muscle 200 by bluntly separating the muscle 200 through compression. For the sheet-like muscle implant 100, this avoids the problem of folding leading to unexpected pathological structures, making it difficult to evaluate the biological response caused by the sheet-like muscle implant 100, and thus preventing inaccurate safety assessments of the implant, thereby improving the accuracy of the results.

[0034] In addition, after the muscle implant 100 is implanted and left in the body, the incision 201 is sutured. After the implantation cycle is completed, the implanted muscle implant 100 and muscle block are cut to make a pathological tissue block. Under a microscope, it is observed whether inflammation occurs around the muscle implant 100.

[0035] Optionally, in this embodiment, the first implant 1 and the fitting portion 2 are integrally formed. This arrangement facilitates processing. Optionally, in this embodiment, the fitting portion 2 is disposed at the outer edge of one end of the first implant 1 and is located close to the first pressing surface. The side of the fitting portion 2 closest to the second pressing surface is used to fit against the muscle implant 100. This arrangement ensures that when the muscle implant 100 is implanted, it is further away from the other side of the incision 201, thus further preventing contact between the muscle implant 100 and the muscle 200 on the other side of the incision 201.

[0036] Optionally, in this embodiment, the first implant 1 is provided with a guide cavity 11. The two ends of the guide cavity 11 penetrate opposite end faces of the first implant 1 along its length. The guide cavity 11 is used to pass through the rod-shaped muscle implant 100. The cavity wall of the guide cavity 11 smoothly transitions to the surface of the fitting portion 2, allowing the rod-shaped muscle implant 100 passing through the guide cavity 11 to fit snugly against the fitting portion 2. Since the rod-shaped muscle implant 100 tends to move on the fitting portion 2 when the first implant 1 is inserted into the muscle 200, the guide cavity 11 makes it easier to guide the rod-shaped muscle implant 100 to the fitting portion 2. Furthermore, in the prior art, a cannula is typically used when implanting the rod-shaped muscle implant 100. However, existing cannulas have an inner lumen. When the cannula is inserted into the muscle 200, the muscle 200 is easily pushed into the inner lumen of the cannula, causing damage to the muscle 200 during implantation. In this embodiment, when implanting the rod-shaped muscle implant 100, the operator first makes an incision 201 with a scalpel, then uses the first pressing surface of the first implant 1 to press against one side of the incision 201. While pressing, the first implant 1 continuously extends into the muscle 200 along that side of the incision 201 until the target position is reached; then, as... Figure 6 As shown, a rod-shaped muscle implant 100 is placed into the guide cavity 11, passing through the guide cavity 11 and adhering to the fitting part 2. Then, the first implant 1 is pressed against the opposite side of the incision 201 (i.e., the other side of the incision 201) through the second pressing surface, causing the opposite muscle 200 to adhere to the rod-shaped muscle implant 100. Due to the adhesive nature of the muscle tissue, the muscle tissue can adhere to the rod-shaped muscle implant 100. Afterwards, the first implant 1 is withdrawn, the muscle 200 returns to its original state, the wound closes, and the rod-shaped muscle implant 100 remains in the body. During the insertion of the first implant 1 into the muscle 200, because one side of the incision 201 is continuously compressed, the muscle 200 will not get stuck in the guide cavity 11, thus preventing damage to the muscle 200 during implantation.

[0037] Optionally, the fitting portion 2 has an arc-shaped structure. With this configuration, the sheet-like muscle implant 100 can fit against the two opposing edges of the arc-shaped structure, and the rod-shaped muscle implant 100 can fit against the arc-shaped surface of the arc-shaped structure. Specifically, when performing implantation experiments on rabbit paraspinal muscles using tools, a rod-shaped muscle implant 100 with rounded ends and a diameter of 1.5mm-2mm and a length of 5mm-10mm can be implanted, and the rod-shaped muscle implant 100 is made of plastic. Alternatively, a sheet-like muscle implant 100 with a diameter of 10mm-12mm and a thickness of 0.3mm-1mm can be implanted, and the sheet-like muscle implant 100 is a sheet-like muscle implant fabric. During implantation, the sheet-like muscle implant fabric is moistened with physiological saline and adhered to the fitting portion 2 by tension.

[0038] Optionally, the muscle implant tool further includes a second implant 3, which extends into the guide cavity 11 and abuts against the rod-shaped muscle implant 100. By providing the second implant 3, after the rod-shaped muscle implant 100 is placed into the guide cavity 11, the second implant 3 abuts against the tip of the rod-shaped muscle implant 100, facilitating the pushing of the rod-shaped muscle implant 100 to the fitting portion 2, thereby accelerating the implantation speed of the rod-shaped muscle implant 100. Optionally, in this embodiment, the second implant 3 is slidably connected to the cavity wall of the guide cavity 11. This configuration guides the movement of the second implant 3, facilitating operator operation and further accelerating the implantation speed of the rod-shaped muscle implant 100.

[0039] Furthermore, a handle 4 is provided at one end of the second implant 3. The handle 4 facilitates gripping by the operator. Further, in this embodiment, the handle 4 abuts against the end face of the first implant 1 away from the fitting portion 2. This configuration limits the insertion position of the second implant 3 within the guide cavity 11, preventing the second implant 3 from pushing the rod-shaped muscle implant 100 completely away from the fitting portion 2. In this embodiment, the length of the second implant 3 is greater than or equal to the length of the first implant 1. This configuration allows the rod-shaped muscle implant 100 to be completely pushed out of the guide cavity 11. When the length of the second implant 3 is equal to the length of the first implant 1, when the handle 4 abuts against the end face of the first implant 1 away from the fitting portion 2, the end face of the second implant 3 away from the handle 4 is flush with the end face of the first implant 1 near the fitting portion 2.

[0040] Optionally, the outer wall surface of the first implant 1 near the fitting portion 2 is a conical surface 12. This configuration facilitates insertion of the first implant 1 into the muscle 200 initially.

[0041] Optionally, the cross-section of the first implant 1 is annular. This design avoids damage to the muscle 200 from the outer wall of the first implant 1 and also facilitates the processing and manufacturing of the first implant 1.

[0042] Optionally, the cross-section of the second implant 3 is circular. This configuration facilitates the processing and manufacturing of the second implant 3. Specifically, in this embodiment, the cross-section of the handle 4 is circular, and the diameter of the cross-section of the handle 4 is larger than the diameter of the cross-section of the second implant 3, so that the handle 4 abuts against the end face of the first implant 1 away from the fitting portion 2.

[0043] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A tool for muscle implants, characterized in that, include: The first implant (1) has a first pressing surface and a second pressing surface. The first pressing surface is used to press against one side of the incision (201). The second pressing surface is disposed opposite to the first pressing surface and is used to press against the other side of the incision (201). One end of the first implant (1) has a fitting part (2). The fitting part (2) extends along the length direction of the first implant (1). One side of the fitting part (2) is used to fit against the muscle implant (100).

2. The tool for muscle implants according to claim 1, characterized in that, The fitting part (2) is disposed at the outer edge of one end of the first implant (1) and close to the first pressing surface. The side of the fitting part (2) close to the second pressing surface is used to fit with the muscle implant (100).

3. The tool for muscle implants according to claim 2, characterized in that, The first implant (1) is provided with a guide cavity (11), the two ends of which penetrate the opposite end faces of the first implant (1) along the length direction. The guide cavity (11) is used to pass through the rod-shaped muscle implant (100). The cavity wall of the guide cavity (11) smoothly transitions with the surface of the fitting part (2), so that the rod-shaped muscle implant (100) passing through the guide cavity (11) can fit into the fitting part (2).

4. The tool for muscle implants according to claim 3, characterized in that, The bonding part (2) has an arc-shaped structure.

5. The tool for muscle implants according to claim 3, characterized in that, The tool for the muscle implant also includes a second implant (3) which can extend into the guide cavity (11) and is used to abut against the rod-shaped muscle implant (100).

6. The tool for muscle implants according to claim 5, characterized in that, The second implant (3) has a handle (4) at one end, and the handle (4) can abut against the end face of the first implant (1) away from the fitting part (2).

7. The tool for muscle implants according to claim 5, characterized in that, The second implant (3) is slidably connected to the cavity wall of the guide cavity (11).

8. The tool for muscle implants according to claim 5, characterized in that, The second implant (3) has a circular cross-section.

9. The tool for muscle implants according to any one of claims 1-8, characterized in that, The outer wall surface of the first implant (1) near the fitting part (2) is a conical surface (12).

10. The tool for muscle implants according to any one of claims 1-8, characterized in that, The first implant (1) has a circular cross-section.

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