Vertebral plate rongeur

Abstract

The utility model discloses a vertebral plate rongeur, and belongs to the technical field of rongeur. Comprising forceps handles, the forceps handles comprise a rear handle and a front handle, an incomplete gear is fixedly arranged on the front handle, a rotating shaft is fixedly arranged on the incomplete gear, the incomplete gear is rotationally connected with the rear handle through the rotating shaft, a forceps rod is arranged in the rear handle in a sliding mode, and a toothed plate is fixedly arranged on the forceps rod. The use comfort can be improved by arranging a silicon rubber sleeve on the front handle in a sleeving mode, the front handle drives the toothed plate and the forceps rod to horizontally move through an incomplete gear, the forceps rod forces the front forceps mouth to move forwards, and therefore the purpose of vertebral plate bone rongeur is achieved by being matched with the rear forceps mouth; the positioning blocks are moved into the corresponding positioning grooves in the forceps rod, the forceps rod positioning function is achieved, the handheld strength of medical workers can be relieved, and the labor intensity is relieved.

Description

Technical Field

[0001] This utility model relates to the field of bone-biting forceps, and more specifically, to a vertebral plate bone-biting forceps. Background Technology

[0002] A laminar bone-biting forceps is a surgical instrument primarily used in spinal surgery. It is used to clamp and compress the lamina, removing vertebral osteophytes and bone defects after vertebroplasty. Surgically, it can remove the lamina and intervertebral disc, reducing spinal compression and alleviating symptoms. The existing laminar bone-biting forceps, with publication number CN221654464U, uses a handle to drive a slider relative to the forceps body, opening and closing the jaws. In a second position, the slider engages with a second mating part, moving along this part to disassemble the slider relative to the forceps body. This facilitates easy disassembly and rapid assembly, allowing for thorough cleaning and preventing component loss. However, the aforementioned technology still has the following drawbacks: the laminar bone-biting forceps in the literature require prolonged and forceful gripping by medical personnel, resulting in significant labor intensity and insufficient comfort during extended use. Therefore, we propose a laminar bone-biting forceps. Utility Model Content

[0003] 1. Technical problems to be solved

[0004] The purpose of this utility model is to provide a laminar bone-biting forceps that solves the technical problems of the laminar bone-biting forceps in the prior art, which require medical staff to hold them for a long time, resulting in a lot of labor intensity and insufficient comfort during long-term use. The present invention improves the comfort of use by installing a silicone sleeve on the front handle. The front handle is horizontally displaced by a gear transmission plate and the forceps bar, which forces the front jaws forward to cooperate with the rear jaws to achieve the purpose of biting the laminae. When the forceps bar moves to different distances, the guide post is moved by manually turning the knob, which moves the positioning block into the corresponding positioning groove on the forceps bar, thus realizing the positioning function of the forceps bar. This reduces the hand strength of medical staff and reduces labor intensity.

[0005] 2. Technical Solution

[0006] This utility model provides a laminar bone-biting forceps, characterized in that it comprises: a forceps handle, the forceps handle including a rear handle and a front handle, an incomplete gear fixedly mounted on the front handle, a rotating shaft fixedly mounted on the incomplete gear, the incomplete gear being rotatably connected to the rear handle via the rotating shaft, a forceps bar slidably mounted inside the rear handle, a toothed plate fixedly mounted on the forceps bar, the toothed plate being meshed with the incomplete gear, a front jaw connected to the end of the forceps bar, a rear jaw fixedly mounted at the end of the rear handle, an installation groove formed on the rear handle, a return spring being limited and installed within the installation groove on the rear handle, the return spring being sleeved on the outside of the forceps bar, with one end fixedly connected to the forceps bar, a positioning mechanism mounted on the rear handle for limiting the installation of the forceps bar, and a silicone sleeve detachably mounted on the front handle.

[0007] By adopting the above technical solution, the vertebral laminae biting forceps consists of a handle, a rod, a reset spring, a front jaw, and a rear jaw. The handle is composed of a rear handle and a front handle. When in use, the front handle can be held to cause the incomplete gear transmission tooth plate and the rod to move horizontally. The rod forces the front jaw to move forward and cooperates with the rear jaw to achieve the purpose of biting the vertebral laminae. When the rod moves at different strokes, the positioning mechanism can realize the positioning function of the rod, thereby reducing the hand strength of medical staff and reducing labor intensity. In addition, a silicone sleeve is also installed on the front handle to improve the comfort of use.

[0008] Optionally, the rear handle is provided with an inner guide cavity and a sliding cavity, and the incomplete gear and the toothed plate are meshed and installed in the inner guide cavity.

[0009] By adopting the above technical solution, the incomplete gear rotates along the inner guide cavity, causing the gear plate to move horizontally along the inner guide cavity.

[0010] Optionally, the positioning mechanism includes a threaded rod with a knob fixedly mounted on its upper end. The threaded rod is rotatably connected to the rear handle. A guide post is threaded through the threaded rod, and two positioning blocks are fixedly mounted on the guide post. The guide post is movably inserted into the sliding cavity, and the guide post is slidably connected to the clamp rod.

[0011] By adopting the above technical solution, the screw rod is rotated by manually turning the knob. Since the guide rod is inserted into the slide cavity through two positioning blocks, and the bottom end of the screw rod is rotatably connected to the rear handle, the screw rod forces the guide rod to move downward, causing the positioning blocks to move downward, thus realizing the clamp rod positioning function.

[0012] Optionally, the clamp bar is provided with a strip groove, and positioning grooves are provided on both sides of the inner wall of the strip groove. The guide post moves down along the sliding cavity, and the positioning block is inserted and installed in the positioning groove.

[0013] By adopting the above technical solution, the slotted groove of the clamp bar can slide along the guide post. When the positioning block moves down and is inserted into the positioning groove, the clamp bar can be positioned.

[0014] Optionally, the silicone sleeve has multiple arc-shaped grooves, and the silicone sleeve also has multiple anti-slip grooves along the arc surface.

[0015] By adopting the above technical solution, the silicone sleeve can be easily installed by opening multiple arc-shaped grooves, and the anti-slip grooves provide an anti-slip function when medical staff hold it.

[0016] 3. Beneficial effects

[0017] One or more technical solutions provided in this utility model have at least the following technical effects or advantages: When using this laminar bone-biting forceps, the comfort of use can be improved by installing a silicone sleeve on the front handle. The front handle is horizontally displaced by a gear transmission tooth plate and the forceps bar, which forces the front jaws to move forward, thereby cooperating with the rear jaws to achieve the purpose of laminar bone biting. When the forceps bar is displaced at different strokes, the guide post is forced to move by manually turning the knob, which moves the positioning block into the corresponding positioning groove on the forceps bar, thereby realizing the positioning function of the forceps bar. This can reduce the hand strength of medical staff and reduce labor intensity. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a lamina bone-biting forceps according to a preferred embodiment of the present invention;

[0019] Figure 2 This is a partially exploded and cross-sectional structural diagram of a lamina bone-biting forceps according to a preferred embodiment of the present invention;

[0020] Figure 3 A preferred embodiment of this utility model discloses a laminar bone-biting forceps. Figure 2 Enlarged structural diagram at point A in the middle;

[0021] The following are the labels in the diagram: 1. Pliers handle; 11. Rear handle; 111. Inner guide cavity; 112. Mounting slot; 113. Sliding cavity; 12. Front handle; 121. Incomplete gear; 122. Rotating shaft; 2. Rear jaw; 3. Pliers bar; 31. Tooth plate; 32. Strip groove; 321. Positioning groove; 4. Silicone sleeve; 41. Arc groove; 42. Anti-slip groove; 5. Return spring; 6. Positioning mechanism; 61. Knob; 62. Screw; 63. Guide post; 631. Positioning block; 7. Front jaw. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] Reference Figures 1 to 3This utility model provides a laminar bone-biting forceps, characterized in that it comprises: a forceps handle 1, which includes a rear handle 11 and a front handle 12. An incomplete gear 121 is fixedly mounted on the front handle 12, and a rotating shaft 122 is fixedly mounted on the incomplete gear 121. The incomplete gear 121 is rotatably connected to the rear handle 11 via the rotating shaft 122. A forceps bar 3 is slidably mounted inside the rear handle 11, and a toothed plate 31 is fixedly mounted on the forceps bar 3. The toothed plate 31 meshes with the incomplete gear 121. A front jaw 7 is connected to the end of the forceps bar 3, and a rear jaw 2 is fixedly mounted to the end of the rear handle 11. A mounting groove 112 is provided on the rear handle 11, and a return spring 5 is mounted within the mounting groove 112 on the rear handle 11. The return spring 5 is sleeved outside the forceps bar 3, and one end is connected to the forceps bar 11. The rod 3 is fixedly connected, and a positioning mechanism 6 is installed on the rear handle 11 to limit the installation of the clamp rod 3. A silicone sleeve 4 is detachably installed on the front handle 12. The vertebral plate bone biting forceps consists of a handle 1, a clamp rod 3, a return spring 5, a front jaw 7, and a rear jaw 2. The handle 1 consists of a rear handle 11 and a front handle 12. When in use, the front handle 12 can be held to make the incomplete gear 121 drive the toothed plate 31 and the clamp rod 3 to move horizontally. The clamp rod 3 forces the front jaw 7 to move forward and cooperates with the rear jaw 2 to achieve the purpose of biting the vertebral plate. When the clamp rod 3 moves to different strokes, the positioning mechanism 6 can realize the positioning function of the clamp rod 3, thereby reducing the hand strength of medical staff and reducing labor intensity. In addition, a silicone sleeve 4 is also installed on the front handle 12 to improve the comfort of use.

[0024] Reference Figure 1 and Figure 2 The rear handle 11 has an inner guide cavity 111 and a sliding cavity 113. The incomplete gear 121 and the toothed plate 31 are meshed and installed in the inner guide cavity 111. The incomplete gear 121 rotates in the inner guide cavity 111, causing the toothed plate 31 to move horizontally in the inner guide cavity 111.

[0025] Reference Figure 2 and Figure 3 The positioning mechanism 6 includes a screw rod 62, with a knob 61 fixedly mounted on the upper end of the screw rod 62. The screw rod 62 is rotatably connected to the rear handle 11. A guide post 63 is threaded through the screw rod 62. Two positioning blocks 631 are fixedly mounted on the guide post 63. The guide post 63 is movably inserted into the sliding cavity 113 and is slidably connected to the clamp bar 3. By manually rotating the knob 61, the screw rod 62 is rotated. Since the guide post 63 is inserted into the sliding cavity 113 through the two positioning blocks 631 and the bottom end of the screw rod 62 is rotatably connected to the rear handle 11, the screw rod 62 forces the guide post 63 to move downward, causing the positioning blocks 631 to move downward, thus realizing the positioning function of the clamp bar 3.

[0026] Reference Figure 2 and Figure 3The clamp bar 3 has a strip groove 32, and positioning grooves 321 are provided on both sides of the inner wall of the strip groove 32. The guide post 63 moves down along the sliding cavity 113, and the positioning block 631 is inserted into the positioning groove 321. The strip groove 32 of the clamp bar 3 can slide along the guide post 63. When the positioning block 631 moves down and is inserted into the positioning groove 321, the clamp bar 3 can be positioned.

[0027] Reference Figure 1 and Figure 2 The silicone sleeve 4 has multiple arc-shaped grooves 41 and multiple anti-slip grooves 42 along the arc surface. The silicone sleeve 4 can be easily fitted and installed by opening multiple arc-shaped grooves 41, and the anti-slip grooves 42 provide an anti-slip function when medical staff hold it.

[0028] Working principle: This vertebral laminae biting forceps consists of a handle 1, a rod 3, a return spring 5, a front jaw 7, and a rear jaw 2. The handle 1 consists of a rear handle 11 and a front handle 12. When in use, the front handle 12 can be held, causing the incomplete gear 121 to drive the toothed plate 31 and the rod 3 to move horizontally. The rod 3 forces the front jaw 7 to move forward, and works with the rear jaw 2 to achieve the purpose of biting the vertebral laminae. When the rod 3 moves to different strokes, the knob 61 can be manually turned to rotate the screw 62. The screw 62 forces the guide post 63 to move downward, causing the positioning block 631 to move downward, which can realize the positioning function of the rod 3. This can reduce the hand strength of medical staff and reduce labor intensity. In addition, a silicone sleeve 4 is also installed on the front handle 12 to improve the comfort of use.

Claims

1. A vertebral laminae bone-biting forceps, characterized in that: Includes: a clamp handle (1), the clamp handle (1) including a rear handle (11) and a front handle (12), the front handle (12) being fixedly provided with an incomplete gear (121), the incomplete gear (121) being fixedly provided with a rotating shaft (122), the incomplete gear (121) being rotatably connected to the rear handle (11) through the rotating shaft (122), a clamp bar (3) being slidably provided inside the rear handle (11), the clamp bar (3) being fixedly provided with a toothed plate (31), the toothed plate (31) being meshed with the incomplete gear (121), the clamp bar ( 3) The end is connected to the front jaw (7), the rear handle (11) is fixedly provided with the rear jaw (2), the rear handle (11) is provided with the mounting groove (112), the rear handle (11) is located in the mounting groove (112) and a return spring (5) is installed in the limiting position, the return spring (5) is sleeved on the outside of the clamp bar (3) and one end is fixedly connected to the clamp bar (3), the rear handle (11) is provided with the positioning mechanism (6) for limiting the installation of the clamp bar (3), and a silicone sleeve (4) is detachably sleeved on the front handle (12).

2. The laminar bone-biting forceps according to claim 1, characterized in that: The rear handle (11) is provided with an inner guide cavity (111) and a sliding cavity (113), and the incomplete gear (121) and the toothed plate (31) are meshed and installed in the inner guide cavity (111).

3. The laminar bone-biting forceps according to claim 2, characterized in that: The positioning mechanism (6) includes a threaded rod (62), a knob (61) is fixedly provided on the upper end of the threaded rod (62), the threaded rod (62) is rotatably connected to the rear handle (11), the threaded rod (62) is threaded through a guide post (63), two positioning blocks (631) are fixedly provided on the guide post (63), the guide post (63) is movably inserted into the sliding cavity (113), and the guide post (63) is slidably connected to the clamp rod (3).

4. The laminectomy forceps according to claim 3, characterized in that: The clamp rod (3) has a strip groove (32) and positioning grooves (321) are provided on both sides of the inner wall of the strip groove (32). The guide post (63) moves down along the sliding cavity (113) and the positioning block (631) is inserted and installed in the positioning groove (321).

5. The laminectomy forceps according to claim 1, characterized in that: The silicone sleeve (4) has multiple arc-shaped grooves (41) and multiple anti-slip grooves (42) along the arc surface.

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