A cone plate rongeur for endoscopic spinal surgery

Abstract

This utility model discloses a conical plate cleaving forceps for spinal endoscopic surgery, relating to the field of medical device technology. It solves the problem that existing cleaving forceps require doctors to apply significant gripping force to cleave the vertebral laminae. An embodiment of this utility model discloses a conical plate cleaving forceps for spinal endoscopic surgery, comprising a sliding forceps body and a fixed forceps body slidably connected. A fixed forceps head is provided at the end of the fixed forceps body. A bone-receiving groove is provided at the end of the sliding forceps body near the fixed forceps head. It also includes a first cutting structure located at the end of the fixed forceps head near the sliding forceps body and / or a second cutting structure located at the end of the sliding forceps body near the fixed forceps head.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a conical plate bone-biting forceps for spinal endoscopic surgery. Background Technology

[0002] Currently, during minimally invasive spinal endoscopic surgery, after the spinal endoscope is inserted into the patient's body, tools such as drills and bone forceps are needed to create a window in the vertebral lamina through the surgical channel of the spinal endoscope. This allows for subsequent operations such as ligamentum flavum replacement and nucleus pulposus removal. However, when using existing bone forceps to remove the lamina covering the ligamentum flavum, the surgeon typically holds the forceps to the corresponding lamina position and then grips the handle tightly to apply pressure and cut off the corresponding position of the lamina. However, the current bone forceps apply pressure to the entire lamina when cutting it, and since the lamina has a certain thickness, the surgeon needs to use a large gripping force to cut it off. During the entire minimally invasive spinal endoscopic surgery, the lamina often needs to be cut off multiple times. Therefore, there is a need to design a bone forceps that is easier to cut off the lamina.

[0003] Based on the above background, the inventors designed a conical plate bone-biting forceps for spinal endoscopic surgery to solve the above problems, and thus, this application is filed. Summary of the Invention

[0004] The purpose of this application is to provide a vertebral lamina biting forceps for spinal endoscopic surgery, which solves the problem that existing vertebral lamina biting forceps require doctors to apply a large gripping force to bite through the vertebral lamina.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0006] This application provides a conical plate bone-biting forceps for spinal endoscopic surgery, including a sliding forceps body and a fixed forceps body that are slidably connected. The fixed forceps body is provided with a fixed forceps head at its end, and the sliding forceps body is provided with a bone-accommodating groove at one end near the fixed forceps head.

[0007] It also includes a first cutting structure located at the end of the fixed jaw near the sliding jaw body and / or a second cutting structure located at the end of the sliding jaw body near the fixed jaw.

[0008] Optionally, the first cutting structure is a first cutting edge, and the second cutting structure is a second cutting edge.

[0009] Optionally, the first cutting structure is a first saw tooth, and the second cutting structure is a second saw tooth, with the first saw tooth and the second saw tooth being adapted to each other;

[0010] The first serration is located on the fixed jaw near the end of the sliding jaw, and the second serration is located on the sliding jaw near the end of the fixed jaw.

[0011] Optionally, the side of the fixed clamp body closest to the sliding clamp body is a sliding surface;

[0012] It also includes a bone retraction structure located on the sliding surface, which is situated within the bone-receptor groove.

[0013] Optionally, the cross-sectional shape of the retractable bone structure can be any one of a semi-circle, a U-shape, or a rectangle.

[0014] Optionally, the cross-sectional shape of the bone retraction structure is semi-circular, and there is a gap between the end face of the bone retraction structure and the bone-receiving groove.

[0015] Optionally, the connection between the bone-removing structure and the fixation clamp body is an integral fixation connection.

[0016] Optionally, the distance between the bone-removing structure and the fixing forceps head is between 2cm and 4cm.

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

[0018] I. This application provides a bone-receiving groove at one end of the sliding forceps near the fixed forceps head, and simultaneously provides a first cutting structure on the fixed forceps head and / or a second cutting structure on the sliding forceps body. This allows the application to, after biting into the corresponding conical lamina position, apply slight gripping force to cause the first and / or second cutting structures to cut the conical lamina, thereby cutting off the bitten conical lamina. The linear or point-like biting of the first and second cutting structures in this application, compared to existing biting forceps, can significantly reduce the biting contact area between the biting forceps and the vertebral lamina, making it easier to cut off the bitten conical lamina, thus effectively solving the problems of the prior art.

[0019] Second, this application provides a bone-removing structure within the bone-retaining groove, allowing the biting forceps to cut the vertebral lamina. The severed vertebral lamina remains within the groove until it is removed from the patient's body. Then, the gripping part is released, and the sliding forceps are reset, allowing the vertebral lamina to be pushed out of the groove. This avoids the problem of difficulty in removing the vertebral lamina caused by the bone-retaining groove. Furthermore, no other operations are required during operation, making it extremely convenient to use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of this application.

[0021] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of AA.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1-Fixed clamp body, 101-Sliding surface, 11-Fixed clamp head, 12-First serration, 13-Bone retraction structure, 2-Sliding clamp body, 21-Bone-accommodating groove, 22-Second serration. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0025] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They 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. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0027] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] like Figure 1 and Figure 2 As shown, this embodiment provides a conical plate bone-biting forceps for spinal endoscopic surgery, including a sliding forceps body 2 and a fixed forceps body 1 that are slidably connected. The fixed forceps body 1 is provided with a fixed forceps head 11 at its end, and the sliding forceps body 2 is provided with a bone-accepting groove 21 at one end near the fixed forceps head 11.

[0029] It also includes a first cutting structure located at one end of the fixed jaw 11 near the sliding jaw 2 and / or a second cutting structure located at one end of the sliding jaw 2 near the fixed jaw 11.

[0030] This embodiment provides a bone-receiving groove 21 at one end of the sliding forceps 2 near the fixed forceps head 11, and simultaneously provides a first cutting structure on the fixed forceps head 11 and / or a second cutting structure on the sliding forceps 2. This allows the first and / or second cutting structures to cut the vertebral plate after the forceps have been engaged with the corresponding conical plate, by applying a slight gripping force. The linear or point-like cutting of the first and second cutting structures in this embodiment significantly reduces the contact area between the forceps and the vertebral plate compared to existing forceps, making it easier to cut off the engaged vertebral plate and effectively solving the problems of the prior art.

[0031] In some embodiments, the first cutting structure is a first cutting edge and the second cutting structure is a second cutting edge, so that the biting and cutting between the biting pliers and the conical plate is a linear biting and cutting, and the sliding pliers 2 can bite and cut the conical plate with a relatively low thrust.

[0032] In this embodiment, as Figure 1 As shown, the first cutting structure is a first saw tooth 12, and the second cutting structure is a second saw tooth 22, with the first saw tooth 12 and the second saw tooth 22 being mutually compatible.

[0033] The first serration 12 is located on the fixed pliers head 11 near the end of the sliding pliers body 2, and the second serration 22 is located on the sliding pliers body 2 near the end of the fixed pliers head 11. The first cutting structure is the first serration 12, and the second cutting structure is the second serration 22, so that the bone biting forceps of this application bites the cone plate in a point-cutting manner, which can make the biting and cutting smoother.

[0034] Specifically, in this embodiment, the side of the fixed clamp 1 closest to the sliding clamp 2 is the sliding surface 101;

[0035] It also includes a bone retraction structure 13 disposed on the sliding surface 101, the bone retraction structure 13 being located within the bone-containing groove 21.

[0036] By providing a bone-removing structure 13 within the bone-retaining groove 21, the occlusal forceps of this application can cut off the vertebral lamina, with the severed lamina remaining within the bone-retaining groove 21. Once the severed lamina is removed from the patient's body, the gripping part of this application can be released, allowing the sliding forceps 2 to reset and push the lamina out of the bone-retaining groove 21. This avoids the problem of the vertebral lamina being difficult to remove due to the bone-retaining groove 21. Furthermore, no other operations are required during operation, making it extremely convenient to use.

[0037] Specifically, in this embodiment, the cross-sectional shape of the retractable bone structure 13 is semi-circular. In some embodiments, the cross-sectional shape of the retractable bone structure 13 can also be set to a U-shape or a rectangle.

[0038] Specifically, in this embodiment, there is a gap between the end face of the bone removal structure 13 and the bone-receiving groove 21 to prevent the sliding clamp body 2 from being stuck by bone fragments.

[0039] Specifically, in this embodiment, the connection between the bone-removing structure 13 and the fixing forceps body 1 is an integral fixed connection, which makes it convenient to clean the bone-biting forceps after use.

[0040] Specifically, in this embodiment, the distance between the bone-removing structure 13 and the fixing clamp head 11 is approximately 3cm. It can also be set to 2cm or 4cm as needed, as long as the distance is greater than the thickness of the vertebral lamina. Technical personnel can set the specific parameters themselves.

[0041] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. A conical plate bone-biting forceps for spinal endoscopic surgery, comprising a sliding forceps body (2) and a fixed forceps body (1) slidably connected, wherein the end of the fixed forceps body (1) is provided with a fixed forceps head (11), characterized in that, The sliding clamp body (2) has a bone-receiving groove (21) at one end near the fixed clamp head (11); It also includes a first cutting structure located at one end of the fixed clamp head (11) near the sliding clamp body (2) and / or a second cutting structure located at one end of the sliding clamp body (2) near the fixed clamp head (11).

2. The conical plate bone-biting forceps for spinal endoscopic surgery according to claim 1, characterized in that, The first cutting structure is a first cutting edge, and the second cutting structure is a second cutting edge.

3. The conical plate bone-biting forceps for spinal endoscopic surgery according to claim 1, characterized in that, The first cutting structure is a first saw tooth (12), and the second cutting structure is a second saw tooth (22). The first saw tooth (12) and the second saw tooth (22) are adapted to each other. The first serration (12) is located on the end of the fixed clamp head (11) near the sliding clamp body (2), and the second serration (22) is located on the end of the sliding clamp body (2) near the fixed clamp head (11).

4. The conical plate bone-biting forceps for spinal endoscopic surgery according to claim 1, characterized in that, The side of the fixed clamp (1) closest to the sliding clamp (2) is the sliding surface (101); It also includes a bone retraction structure (13) disposed on the sliding surface (101), the bone retraction structure (13) being located within the bone-receiving groove (21).

5. The conical plate bone-biting forceps for spinal endoscopic surgery according to claim 4, characterized in that, The cross-sectional shape of the detached bone structure (13) is any one of semi-circular, U-shaped, or rectangular.

6. The conical plate bone-biting forceps for spinal endoscopic surgery according to claim 5, characterized in that, The cross-sectional shape of the bone retraction structure (13) is semi-circular, and there is a gap between the end face of the bone retraction structure (13) and the bone groove (21).

7. The conical plate bone-biting forceps for spinal endoscopic surgery according to claim 4, characterized in that, The connection between the bone retraction structure (13) and the fixation clamp (1) is an integral fixation connection.

8. The conical plate bone-biting forceps for spinal endoscopic surgery according to claim 4, characterized in that, The distance between the bone-removing structure (13) and the fixing clamp head (11) is between 2cm and 4cm.

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