Stripper for operation channel of diskoscope
By designing a stripper with avoiding strip openings and movable notches, the adaptation problem between the stripping tube and the operating channel is solved, the field of view and rotation range is increased, and the convenience of the intervertebral disc mirror is ensured.
Patent Information
- Application Number
- CN202421916167.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-08
AI Technical Summary
In the operating channels of existing discoscopes, the stripping tube cannot be adapted to the operating channels due to structural interference, resulting in limited visual field and inconvenient operation.
A stripper for operating channels of intervertebral disc mirror is designed. The stripping tube is equipped with a stripping strip opening. The pulling handle and the stripping part are located on opposite sides of the stripping strip opening. The stripping handle and the stripping part are penetrated through the stripping tube to avoid the raised structure. The pulling handle and the stripping part form a movement gap for rotation and movement. In combination with the fixed position of the locking component, it ensures that the stripping pipe and the operation channel are adapted.
The adaptation of the peeling pipe and the operating channel is achieved, the operation field of view and rotation range is increased, structural interference is avoided, and operation is facilitated.
Smart Images
Figure CN223054527U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of discoscopes, and particularly to a dissector for an operation channel of a discoscope. Background Art
[0002] The discoscope technology removes herniated disc tissues through a posterior approach under the monitoring of an endoscope, and it is the earliest minimally invasive endoscopic disc removal technology. The improved dual-medium discoscope technology not only has small trauma, high efficiency, easy hemostasis, and a clearer surgical field, but also can achieve unilateral approach bilateral decompression and 360° release of spinal canal compression and stenosis under the endoscope. It can not only treat lumbar disc herniation well, but also effectively treat spinal canal stenosis.
[0003] As Figure 6 shown, in the prior art, the operating system under the discoscope is an off-axis endoscope system. Since the lens axis is not within the coaxial ring of the operation channel, when a traditional external tube (dissection tube) is extended into the operation channel, there will be relative obstruction of the field of view and other obstacles. Moreover, the convex structure 103 of the lens 104 and the operation handle 102 of the discoscope will partially invade the operation channel, which will also hinder the extension of the external tube (dissection tube) into the operation channel. If a dissection tube adapted to the operation channel is used, the dissection tube will be interfered by the lens 104 and the convex structure 103 of the operation handle 102 and cannot be extended into the operation channel, resulting in the need to use a small-sized dissection tube for operation. However, the small-sized dissection tube affects the field of view and operation. Summary of the Utility Model
[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a dissector for an operation channel of a discoscope, which can avoid the structural interference when the dissection tube is inserted into the operation channel, so that the diameter of the dissection tube can be adapted to the operation channel, thereby ensuring the field of view and facilitating the operation.
[0005] To achieve the above object, the technical solution adopted by the utility model is as follows:
[0006] A dissector for an operation channel of a discoscope includes: a dissection tube for inserting into a working pipeline, a central hole extending along the length direction of the dissection tube is arranged in the dissection tube, a avoiding strip opening is arranged on one side of the peripheral wall of the central hole, the avoiding strip opening extends along the length direction of the dissection tube and penetrates through the dissection tube, so that openings are formed at the upper and lower ends of the avoiding strip opening; a pull handle extending upward, the lower end of the pull handle is connected to the upper end of the dissection tube and is located on the opposite side of the avoiding strip opening, and a first avoiding movable gap is formed between the pull handle and the upper end of the dissection tube; a dissection part extending downward, the upper end of the dissection part is connected to the lower end of the dissection tube and is located on the opposite side of the avoiding strip opening, and a second avoiding movable gap is formed between the dissection part and the lower end of the dissection tube.
[0007] Further, the peeling tube, the pulling handle, and the peeling part are integrally formed.
[0008] Further, an extension handle extending horizontally away from the avoidance strip opening is provided at the upper end of the pulling handle, and a vertical handle extending downward is provided at one end of the extension handle away from the avoidance strip opening.
[0009] Further, a locking assembly is further included, which is used to abut against the working pipeline so that the position of the peeling tube and the working pipeline is fixed.
[0010] Further, the locking assembly includes an elastic pressing column elastically and movably installed on the vertical handle, and the elastic pressing column is located on the side of the vertical handle facing the peeling tube; the elastic pressing column is subjected to an elastic acting force towards the peeling tube, and abuts against the outer wall of the working pipeline under the push of the elastic acting force.
[0011] Further, the locking assembly further includes a guide rod and a compression spring. The guide rod is installed on the vertical handle. The elastic pressing column is provided with a sleeve hole to be sleeved on the guide rod and can move along the guide rod. The compression spring is sleeved on the guide rod. One end of the compression spring abuts against the vertical handle, and the other end abuts against the elastic pressing column.
[0012] Further, a sinking groove is provided at one end of the elastic pressing column facing the vertical handle for part of the compression spring to be embedded.
[0013] Further, an operation handle extending vertically is provided on the peripheral wall of the elastic pressing column.
[0014] Further, a reinforcing rib strip extending along the elastic movement direction of the elastic pressing column is provided at the bottom of the extension handle. One end of the reinforcing rib strip is connected to the pulling handle, and the other end is connected to the vertical handle.
[0015] Further, a limiting notch for the reinforcing rib strip to be embedded is provided at the upper end of the operation handle to slide along the reinforcing rib strip.
[0016] The utility model has the following beneficial effects:
[0017] The avoidance strip opening enables the peeling tube to effectively avoid the convex structure of the operating handle when being inserted into the operating channel, preventing the convex structure of the operating handle from interfering with the insertion of the peeling tube. This allows the peeling tube adapted to the operating channel to be inserted into the operating channel without the need to use a small-sized peeling tube with a diameter significantly smaller than that of the operating channel, effectively ensuring the operating vision and facilitating the operation. The avoidance strip opening extends along the length direction of the peeling tube and penetrates the peeling tube, enabling the convex structure to pass through the avoidance strip opening entirely. After the peeling tube passes over the convex structure, it can be rotated without being interfered by the convex structure. The pull handle is used to extend out of the operating channel for convenient operation. To minimize the restriction and interference of the convex structure on the movement range of the pull handle, the pull handle is located on the opposite side of the avoidance strip opening and forms a first avoidance movement gap with the upper end of the peeling tube, thus avoiding the convex structure. The convex structure can relatively rotate within a certain angle in the first avoidance movement gap. After the peeling tube is inserted into the operating channel, the pull handle is located on the opposite side far from the convex structure, providing a larger rotation range for the pull handle without being interfered by the convex structure. Similarly, to minimize the restriction and interference of the lens at the bottom of the operating channel on the movement range of the peeling part, the peeling part is located on the opposite side of the avoidance strip opening and forms a second avoidance movement gap with the lower end of the peeling tube, thus avoiding the lens. The second avoidance movement gap allows the lens to relatively rotate within a certain angle therein.
[0018] In addition to the purposes, features, and advantages described above, the present utility model has other purposes, features, and advantages. The following will refer to the drawings for a further detailed description of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:
[0020] Figure 1 is the overall structural schematic diagram of the present utility model;
[0021] Figure 2 is Figure 1 the sectional view of
[0022] Figure 3 is Figure 2 the enlarged view of part A of
[0023] Figure 4 is the partial view of the disassembled state of the present utility model;
[0024] Figure 5 is the cooperation schematic diagram of the embodiment of the present utility model and the intervertebral disc endoscope;
[0025] Figure 6It is a schematic structural diagram of a discectomy endoscope;
[0026] Figure 7 It is a cross-sectional view when the embodiment of the present invention is combined with the discectomy endoscope.
[0027] Legend:
[0028] Dissection tube 100, working pipeline 101, operating handle 102, convex structure 103, lens 104, operating channel 105, virtual contour 106, central hole 110, avoidance strip opening 111;
[0029] Pull handle 200, first avoidance movable notch 201, extension handle 210, vertical handle 220, threaded hole 221, reinforcing rib 230;
[0030] Dissection part 300, second avoidance movable notch 301;
[0031] Elastic compression post 400, sleeve hole 401, sunk groove 402, guide rod 410, threaded shaft 411, limit head 412, compression spring 420, operating handle 430, limit notch 431, gasket 440, positioning post 441. Detailed implementation manners
[0032] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0034] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.
[0035] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. Additionally, the technical solutions between various embodiments may be combined with each other, but it must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions results in contradictions or cannot be realized, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.
[0036] Referring to Figure 6 and Figure 7 , due to the structural design, the lens 104 of the existing intervertebral disc endoscope and the convex structure 103 of the operating handle 102 of the intervertebral disc endoscope will partially invade the operating channel 105, thus interfering with the insertion of the traditional dissector, making it only possible to use a dissector with a smaller diameter, such as Figure 7 As shown, the maximum diameter contour of the existing dissector is the virtual contour 106, which has a large gap with the operating channel 105, thus affecting the field of view and operation. To solve the above problems, the present utility model provides a dissector for the operating channel of an intervertebral disc endoscope in a preferred embodiment.
[0037] Please refer to Figure 1 and Figure 2 , a dissector for the operating channel of an intervertebral disc endoscope in a preferred embodiment provided by the present utility model includes a dissection tube 100.
[0038] The dissection tube 100 is used to be inserted into the working tube 101. A central operating channel 105 is formed in the center of the working tube 101 for medical devices to pass through.
[0039] A central hole 110 extending along the length direction of the dissection tube 100 is provided inside the dissection tube 100. A relief strip opening 111 is provided on one side of the peripheral wall of the central hole 110. The relief strip opening 111 extends along the length direction of the dissection tube 100 and penetrates through the dissection tube 100, so that openings are formed at the upper and lower ends of the relief strip opening 111. The pull handle 200 extends upward. The lower end of the pull handle 200 is connected to the upper end of the dissection tube 100 and is located on the opposite side of the relief strip opening 111. A first relief moving notch 201 is formed between the pull handle 200 and the upper end of the dissection tube 100.
[0040] The dissection part 300 extends downward. The upper end of the dissection part 300 is connected to the lower end of the dissection tube 100 and is located on the opposite side of the relief strip opening 111, that is, the dissection part 300 and the pull handle 200 are on the same side of the dissection tube 100. A second relief moving notch 301 is formed between the dissection part 300 and the lower end of the dissection tube 100. As Figure 1As shown in the figure, the avoidance strip opening 111 is provided on the front side of the peeling tube 100, and the peeling part 300 and the pulling handle 200 are located on the rear side of the peeling tube 100. Thus, after the avoidance strip opening 111 moves downward along the convex structure 103, the peeling part 300 and the pulling handle 200 are away from the convex structure 103, so as to avoid structural interference and obtain a larger back-and-forth movement range.
[0041] In a preferred embodiment of the present utility model, a dissector for the operation channel of a discectomy mirror is provided. When the peeling tube 100 is inserted into the operation channel, the avoidance strip opening 111 can effectively avoid the convex structure 103 of the operation handle 102, preventing the convex structure 103 of the operation handle 102 from interfering with the insertion of the peeling tube 100. This enables the peeling tube 100 adapted to the operation channel to be inserted into the operation channel 105 without the need to use a small-sized peeling tube 100 with a diameter significantly smaller than that of the operation channel. The outer diameter of the peeling tube 100 in this application can be adapted to the operation channel 105, and the outer diameter of the peeling tube 100 is equal to or slightly smaller than the diameter of the operation channel 105. For example, the outer diameter of the peeling tube 100 is 0 - 0.2 mm smaller than the diameter of the operation channel 105 to facilitate smooth operation. The larger diameter of the peeling tube 100 in this application effectively ensures the operation field of view and facilitates operation. The avoidance strip opening 111 extends along the length direction of the peeling tube 100 and penetrates the peeling tube 100, allowing the entire convex structure 103 to pass through the avoidance strip opening 111. After the peeling tube 100 passes over the convex structure 103, it can rotate without being interfered by the convex structure 103. The pulling handle 200 is used to extend out of the operation channel for convenient operation of the pulling handle 200. In order to minimize the restriction and interference of the convex structure 103 on the movement range of the pulling handle 200, the pulling handle 200 is located on the opposite side of the avoidance strip opening 111 and forms a first avoidance movement notch 201 with the upper end of the peeling tube 100, thus avoiding the convex structure 103. The convex structure 103 can rotate relative to a certain angle within the first avoidance movement notch 201. After the peeling tube 100 is inserted into the operation channel, the pulling handle 200 is located on the opposite side away from the convex structure 103, enabling the pulling handle 200 to have a larger rotation range without being interfered by the convex structure 103. Similarly, in order to minimize the restriction and interference of the lens 104 at the bottom of the operation channel on the movement range of the peeling part 300, the peeling part 300 is located on the opposite side of the avoidance strip opening 111 and forms a second avoidance movement notch 301 with the lower end of the peeling tube 100, thus avoiding the lens 104. The second avoidance movement notch 301 allows the lens 104 to rotate relative to a certain angle within it.
[0042] Refer to Figure 1 In some embodiments of the present utility model, the peeling tube 100, the pulling handle 200, and the peeling part 300 are integrally formed and can be made of metal material.
[0043] Refer toFigure 1 In some embodiments of the present utility model, an extension handle 210 extending horizontally away from the avoidance strip opening 111 is provided at the upper end of the pulling handle 200, and a vertical handle 220 extending downward is provided at one end of the extension handle 210 away from the avoidance strip opening 111, thereby facilitating the operation of rotating the peeling tube 100.
[0044] In a further embodiment of the present utility model, a locking assembly is further included, which is used to abut against the working pipeline 101 to fix the position of the peeling tube 100 and the working pipeline 101. Thus, when the peeling tube 100 does not need to be operated, the peeling tube 100 can be released and the peeling tube 100 will not move randomly to affect other operations.
[0045] Refer to Figure 3 and Figure 4 In a further embodiment of the present utility model, the locking assembly includes an elastic compression column 400 elastically and movably installed on the vertical handle 220, and the elastic compression column 400 is located on the side of the vertical handle 220 facing the peeling tube 100; the elastic compression column 400 is subjected to an elastic force towards the peeling tube 100, and abuts against the outer wall of the working pipeline 101 under the push of the elastic force, so as to realize the relative stability of the position of the peeling tube 100 and the working pipeline 101. Unless under a certain external force, the position of the peeling tube 100 is basically fixed.
[0046] Refer to Figure 3 and Figure 4 In a further embodiment of the present utility model, the locking assembly further includes a guide rod 410 and a compression spring 420. The guide rod 410 is installed on the vertical handle 220 and is horizontally arranged. The elastic compression column 400 is provided with a sleeve hole 401 to be sleeved on the guide rod 410 and can move along the guide rod 410. For smooth movement, the guide rod 410 and the sleeve hole 401 are in clearance fit with a certain gap. The compression spring 420 is sleeved on the guide rod 410. One end of the compression spring 420 abuts against the vertical handle 220, and the other end abuts against the elastic compression column 400, so as to use the compression spring 420 to provide an elastic force for the elastic compression column 400 to press against the outer wall of the working pipeline 101 and realize position stability. It can be understood that in order to increase the friction force in contact with the outer wall of the working pipeline 101, a gasket 440 is installed at one end of the elastic compression column 400 facing the peeling tube 100. The gasket can be made of a track material. The sleeve hole 401 can penetrate the elastic compression column 400. The gasket 440 can be provided with a positioning column 441 embedded in the sleeve hole 401 to realize the installation of the gasket 440. The positioning column 441 and the sleeve hole 401 can be in interference fit.
[0047] It is understandable that for the sake of structural stability, when the elastic pressure column 400 is against the pull handle 200, at least part of the guide rod 410 is inserted into the sleeve hole 401, which requires that the guide rod 410 be of sufficient length, and the length of the guide rod 410 will affect the installation of the elastic pressure column 400. For this reason, in order to facilitate the installation of the elastic pressure column 400, the guide rod 410 is detachably installed on the vertical handle 220. Specifically, the vertical handle 220 is provided with a threaded hole 221, and the end of the guide rod 410 that is away from the stripping tube 100 is provided with a threaded shaft 411 and a limit head 412 in sequence. The diameters of the guide rod 410, the threaded shaft 411 and the limit head 412 increase in sequence. The threaded shaft 411 is threadedly connected to the threaded hole 221, and the limit head 412 fits the vertical handle 220.
[0048] Reference Figure 3 and Figure 4 In a further embodiment of the present invention, a sinking groove 402 is provided at one end of the elastic pressure column 400 facing the vertical handle 220 for partial embedding of the compression spring 420, thereby providing a longer space for the installation of the compression spring 420.
[0049] Reference Figure 3 and Figure 4 In a further embodiment of the utility model, a vertically extending operating handle 430 is provided on the peripheral wall of the elastic pressure column 400, and the operating handle 430 is aligned with the vertical handle 220, so that it is convenient to pinch the vertical handle 220 and the operating handle 430 by hand to operate the elastic pressure column 400 to separate from the working pipe 101, and when pinching the vertical handle 220 and the operating handle 430 by hand, the stripping tube 100 can also be operated to move at the same time.
[0050] Reference Figure 3 and Figure 4 In a further embodiment of the utility model, a reinforcing rib 230 extending along the elastic activity direction of the elastic pressure column 400 is provided at the bottom of the extension handle 210, and one end of the reinforcing rib 230 is connected to the pull handle 200, and the other end is connected to the vertical handle 220, thereby improving the structural strength and reducing deformation.
[0051] Reference Figure 3 and Figure 4 In a further embodiment of the utility model, a limiting notch 431 is provided at the upper end of the operating handle 430 for the reinforcing rib 230 to be embedded in, so as to slide along the reinforcing rib 230, thereby circumferentially limiting the vertical handle 220 and the elastic pressure column 400, avoiding the rotation of the vertical handle 220 and the misalignment of the vertical handle 220, resulting in inconvenient operation.
[0052] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A dissector for the operating channel of a discectomy microscope; characterized in that, Comprising: A stripping tube (100) for inserting into a working pipeline (101). A central hole (110) extending along the length direction of the stripping tube (100) is provided inside the stripping tube (100). On one side of the peripheral wall of the central hole (110), an avoidance strip opening (111) is provided. The avoidance strip opening (111) extends along the length direction of the stripping tube (100) and penetrates through the stripping tube (100), so that openings are formed at the upper and lower ends of the avoidance strip opening (111). A pull handle (200) extending upward. The lower end of the pull handle (200) is connected to the upper end of the stripping tube (100) and is located on the opposite side of the avoidance strip opening (111). A first avoidance activity notch (201) is formed between the pull handle (200) and the upper end of the stripping tube (100). A stripping part (300) extending downward. The upper end of the stripping part (300) is connected to the lower end of the stripping tube (100) and is located on the opposite side of the avoidance strip opening (111). A second avoidance activity notch (301) is formed between the stripping part (300) and the lower end of the stripping tube (100).
2. The dissector for the operating channel of the intervertebral disc endoscope according to claim 1, wherein The stripping tube (100), the pull handle (200), and the stripping part (300) are integrally formed.
3. The dissector for the operation channel of the intervertebral disc endoscope according to claim 1 or 2, characterized in that At the upper end of the pull handle (200), an extension handle (210) extending horizontally away from the avoidance strip opening (111) is provided. At one end of the extension handle (210) away from the avoidance strip opening (111), a vertical handle (220) extending downward is provided.
4. The dissector for the operation channel of the intervertebral disc endoscope according to claim 3, wherein, It further includes a locking assembly for abutting against the working pipeline (101) to fix the position of the stripping tube (100) relative to the working pipeline (101).
5. The dissector for the operation channel of the intervertebral disc endoscope according to claim 4, wherein The locking assembly includes an elastic compression column (400) elastically and movably installed on the vertical handle (220). The elastic compression column (400) is located on the side of the vertical handle (220) facing the stripping tube (100). The elastic compression column (400) is subjected to an elastic force towards the stripping tube (100) and abuts against the outer wall of the working pipeline (101) under the push of the elastic force.
6. The dissector for the operation channel of the intervertebral disc endoscope according to claim 5, characterized in that, The locking assembly further includes a guide rod (410) and a compression spring (420). The guide rod (410) is installed on the vertical handle (220). The elastic compression column (400) is provided with a sleeve hole (401) to be sleeved on the guide rod (410) and can move along the guide rod (410). The compression spring (420) is sleeved on the guide rod (410). One end of the compression spring (420) abuts against the vertical handle (220), and the other end abuts against the elastic compression column (400).
7. The dissector for the operating channel of the intervertebral discoscope according to claim 6, characterized in that, At one end of the elastic compression column (400) facing the vertical handle (220), a sunk groove (402) is provided for partial embedding of the compression spring (420).
8. The dissector for the operation channel of the intervertebral disc endoscope according to claim 5, characterized in that, On the peripheral wall of the elastic compression column (400), an operation handle (430) extending vertically is provided.
9. The dissector for the operation channel of the intervertebral disc endoscope according to claim 8, characterized in that, At the bottom of the extension handle (210), a reinforcing rib (230) extending along the elastic movement direction of the elastic compression column (400) is provided. One end of the reinforcing rib (230) is connected to the pull handle (200), and the other end is connected to the vertical handle (220).
10. The dissector for the operating channel of the intervertebral discoscope according to claim 9, characterized in that, At the upper end of the operation handle (430), a limit notch (431) for embedding the reinforcing rib (230) is provided to slide along the reinforcing rib (230).