Channel retainer for spine endoscopic surgery

Abstract

The utility model relates to the technical field of medical instruments, in particular to a channel retainer for spine endoscopic surgery, which comprises a first channel plate and a second channel plate, a fixed plate is fixedly connected to the surface of the first channel plate, a movable plate is fixedly connected to the surface of the second channel plate, and a connecting plate is fixedly connected to the lower end of the fixed plate. A first threaded rod is rotationally connected to the surface of the fixed plate, the first threaded rod penetrates through the movable plate and is in threaded connection with the movable plate, a sliding rod is fixedly connected to the surface of the fixed plate, the sliding rod penetrates through the movable plate and is in sliding connection with the movable plate, and the movable plate is in sliding connection with the connecting plate; in the aspect of adjustment, a user only needs to rotate the first threaded rod with one hand, so that adjustment is convenient, meanwhile, adjustment is driven through threads, the stability in the adjustment process can be improved, and the accuracy in the channel size adjustment process is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially intervertebral disc endoscope operation channel holder. BACKGROUND

[0002] Channel holder has played the role of maintaining the stable operation channel, ensuring that the endoscope and surgical instruments smoothly enter and operate in the lesion site in the intervertebral disc endoscope operation.

[0003] As the Chinese patent of the authorized announcement number CN219306786U discloses a kind of for intervertebral foramen mirror under lumbar fusion operation's expandable channel, wherein, surgeon slides locking slider on one-way slide rail, to realize the expansion of operation channel;Sliding, the second ratchet of the distal end of upper slider is engaged with the first ratchet of the proximal end of slide rail main body, at the same time, upper slider and lower slider are drawn by locking spring, to realize the one-way sliding of locking slider on one-way slide rail, limit block can prevent locking slider from accidentally falling in the farthest part of one-way slide rail;When needing to be unlocked, surgeon exerts force on upper slider from distal end to proximal end direction, so that the second ratchet is disengaged from the first ratchet, at this time, locking slider can freely slide on one-way slide rail, after the force exerted by surgeon disappears, upper slider is close to lower slider under the action of locking spring elasticity, and the reset of second ratchet and first ratchet is completed, when user adjusts channel size, two upper sliders need to be stretched upwards, so that locking slider is moved, and then channel size is adjusted, user needs to operate with both hands, overcome the elastic force of spring, and move locking slider, it is inconvenient when operating, and it is not easy to maintain the stability when moving by using hand to move locking slider, so that the accuracy when channel size is adjusted cannot be guaranteed. UTILITARIAN CONTENT

[0004] The utility model discloses in view of the deficiency of prior art provides the following technical scheme: channel holder for intervertebral disc endoscope operation, including first channel board, second channel board, the surface of first channel board is fixedly connected with fixed plate, the surface of second channel board is fixedly connected with moving plate, the lower end of fixed plate is fixedly connected with connecting plate, the surface of fixed plate is rotatably connected with screw rod no.

[0005] As the improvement of the above technical solution, the surface of the moving plate is fixedly connected with a fixed block, the surface of the fixed block is threadedly connected with a threaded rod two passing through it, the lower end of the threaded rod two is fixedly connected with a friction block, and the friction block is aligned with the sliding rod.

[0006] As the improvement of the above technical scheme, the surface of the sliding rod is provided with a scale line.

[0007] As the improvement of the above technical scheme, one end of the threaded rod one and the threaded rod two are fixedly connected with a crank handle.

[0008] As the improvement of the above technical scheme, the surface of the first channel plate and the second channel plate are provided with a ring-shaped convex.

[0009] The utility model discloses the beneficial effect that:

[0010] 1, in the adjustment, only the user needs to rotate threaded rod one with one hand, therefore in the adjustment, it is convenient, and the stability when adjusting can be improved by utilizing the threaded drive adjustment, thereby the precision when the size of the channel is adjusted is improved.

[0011] 2, utilize the friction between friction block and sliding rod, thereby can lock the position of moving plate, and then can lock the distance between the first channel plate and the second channel plate, prevent the distance between the first channel plate and the second channel plate from changing. DRAWINGS

[0012] Figure 1 It is the structure diagram of one side of the utility model whole;

[0013] Figure 2 It is the structure diagram of the other side of the utility model whole;

[0014] Figure 3 It is the structure diagram of the other side of the utility model whole; Figure 2 of A place enlarged structure diagram.

[0015] Reference signs: 1, first channel plate;2, second channel plate;3, fixed plate;4, moving plate;5, connecting plate;6, threaded rod one;7, sliding rod;8, fixed block;9, threaded rod two;10, friction block;11, scale line;12, crank handle;13, ring-shaped convex. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following is further detailed to the utility model. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0017] Please refer to Figures 1-3The utility model provides a technical scheme: channel holder for endoscope operation of spine, including first channel board 1, second channel board 2, the surface fixed connection of first channel board 1 has fixed plate 3, the surface fixed connection of second channel board 2 has moving plate 4, the lower end fixed connection of fixed plate 3 has connecting plate 5, the surface rotationally connected of fixed plate 3 has screw rod one 6, and screw rod one 6 penetrates moving plate 4 and is connected with moving plate 4 screw, the surface fixed connection of fixed plate 3 has sliding rod 7, and sliding rod 7 penetrates moving plate 4 and is connected with moving plate 4 sliding, and moving plate 4 is connected with connecting plate 5 sliding.

[0018] In the embodiment, the distance between the first channel plate 1 and the second channel plate 2 is relatively small in the initial state, so when the first channel plate 1 and the second channel plate 2 are inserted into the operation area, the channel is relatively small in the initial state, so that it can easily pass through the intervertebral foramen and other narrow anatomical structures, then the user rotates the screw rod one 6, so that the moving plate 4 slides on the upper surface of the connecting plate 5, and the moving plate 4 slides on the surface of the sliding rod 7, so that the distance between the first channel plate 1 and the second channel plate 2 can be adjusted, so that the distance between them becomes larger, and the width or diameter of the channel increases. When performing intervertebral fusion, the expanded channel can quickly and safely place a conventional large fusion cage into the intervertebral space, thereby establishing a safe intervertebral fusion channel for the placement of various specifications of intervertebral fusion cages. In the adjustment, only the user needs to rotate the screw rod one 6 with one hand, so the adjustment is relatively convenient. At the same time, the use of screw drive adjustment can improve the stability during adjustment, thereby improving the accuracy of the channel size adjustment.

[0019] Specifically, the surface of the moving plate 4 is fixedly connected with a fixed block 8, the surface of the fixed block 8 is threadedly connected with a threaded rod two 9 disposed therethrough, the lower end of the threaded rod two 9 is fixedly connected with a friction block 10, and the friction block 10 is aligned with the sliding rod 7.

[0020] In the embodiment, after adjusting, when locking, first rotate the threaded rod two 9, so that the friction block 10 moves downward until the friction block 10 abuts against the surface of the sliding rod 7. The friction between the friction block 10 and the sliding rod 7 can lock the position of the moving plate 4, and thus the distance between the first channel plate 1 and the second channel plate 2 can be locked to prevent the distance between the first channel plate 1 and the second channel plate 2 from changing.

[0021] Specifically, the surface of the sliding rod 7 is provided with a scale line 11.

[0022] In the embodiment, when adjusting, the moving plate 4 slides on the surface of the sliding rod 7, and since the surface of the sliding rod 7 is provided with the scale line 11, the user can know the accurate distance of the moving plate 4 by observing the scale line 11 aligned after the moving plate 4 moves, thereby improving the accuracy when adjusting the channel size.

[0023] Specifically, one end of the threaded rod one 6 and the threaded rod two 9 is fixedly connected with the crank 12.

[0024] In the embodiment, the user can rotate the threaded rod one 6 and the threaded rod two 9 by rotating the two cranks 12, thereby facilitating the user to rotate the threaded rod one 6 and the threaded rod two 9, and further facilitating the user to operate.

[0025] Specifically, the surface of the first channel plate 1 and the second channel plate 2 is provided with the annular protrusion 13.

[0026] In the embodiment, when the first channel plate 1 and the second channel plate 2 are inserted into the surgical area, the annular protrusion 13 arranged on the surface can improve the friction between the first channel plate 1 and the second channel plate 2 and the skin layer, thereby stably fixing the first channel plate 1 and the second channel plate 2 on the surface of the skin layer.

[0027] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them.

Claims

1. A channel holder for endoscopic spinal surgery, comprising a first channel plate (1), a second channel plate (2), characterized in that: The surface of the first channel plate (1) is fixedly connected with a fixed plate (3), the surface of the second channel plate (2) is fixedly connected with a moving plate (4), the lower end of the fixed plate (3) is fixedly connected with a connecting plate (5), the surface of the fixed plate (3) is rotatably connected with a threaded rod one (6), the threaded rod one (6) penetrates through the moving plate (4) and is threadedly connected with the moving plate (4), the surface of the fixed plate (3) is fixedly connected with a sliding rod (7), the sliding rod (7) penetrates through the moving plate (4) and is slidably connected with the moving plate (4), and the moving plate (4) is slidably connected with the connecting plate (5).

2. The channel holder for endoscopic spinal surgery of claim 1, wherein: The surface of the moving plate (4) is fixedly connected with a fixed block (8), the surface of the fixed block (8) is threadedly connected with a threaded rod two (9) penetratingly arranged, the lower end of the threaded rod two (9) is fixedly connected with a friction block (10), and the friction block (10) is aligned with the sliding rod (7).

3. The channel holder for endoscopic spinal surgery of claim 1, wherein: The surface of the sliding rod (7) is provided with a scale line (11).

4. The cannula holder for endoscopic spinal surgery according to claim 1, characterized in that: One end of the threaded rod one (6) and the threaded rod two (9) is fixedly connected with a crank (12).

5. The cannula holder for endoscopic spinal surgery according to claim 1, wherein: The surface of the first channel plate (1) and the second channel plate (2) is provided with a ring-shaped convex (13).

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