Outer trephine for foramen intervertebrale endoscope
By increasing the number of handles and sawtooth distribution on the external ring saw foramen and setting through holes and scale marks in the sleeve, the problem of inconvenient force and angle adjustment in the existing ring saw during surgery is solved, and the accuracy and convenience of surgical operations are improved.
Patent Information
- Application Number
- CN202420237746.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-01-31
AI Technical Summary
Due to the small number of handles during surgery, existing ring saws are difficult to apply precise force during axial movement, especially when other instruments are blocked, and the angle adjustment and force are inconvenient.
A foramen lens outer ring saw was designed, with five handles and twelve saw teeth on the sleeve, and a through hole is opened in the sleeve, and the inner and outer walls of the through holes are equipped with scale marks to facilitate more accurate force and angle adjustment.
By increasing the number of handles and serrated distribution, you can use force more accurately during surgery and make reasonable angle adjustments when other instruments are blocked, improving the convenience and accuracy of surgical operations.
Smart Images
Figure CN222604622U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical instruments, and in particular relates to an intervertebral foraminal endoscopic external ring saw. Background Art
[0002] A ring saw refers to a surgical instrument that can perform circular cutting during surgery. In clinical surgery, a ring saw is often used to perform circular resection of tissues such as the facet joints or push plates that block the surgical area to expand the surgical field of view. Currently, since existing ring saws mainly have one to four handles, it is inconvenient to apply force accurately during the axial movement during surgery, especially when the ring saw is blocked by other instruments, it is inconvenient to make reasonable angle adjustments and apply appropriate force. Utility Model Content
[0003] In view of the above problems, the purpose of the present invention is to provide a transforaminal endoscopic external ring saw to solve the problems raised in the above background technology.
[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a percutaneous endoscopic external ring saw, including a sleeve, a through hole is opened in the sleeve, and a handle, saw teeth and scale line 1 are arranged on the sleeve. The number of the handles is five, and the number of the saw teeth is twelve. The through hole is provided with scale line 2.
[0005] The beneficial effects of the utility model are as follows: since the number of handles in the utility model is five, it can be convenient for the surgeon to use force more accurately during the axial movement during surgery, conform to the mechanical structure, and make it convenient for the surgeon to use force more accurately during the surgery. When there are other instruments blocking the handles, reasonable angle adjustments can be made to apply appropriate force.
[0006] To facilitate the entry and exit of the viewing mirror:
[0007] As a further improvement of the above technical solution: the through hole is opened along the length direction of the sleeve, and the length of the through hole is 18 cm, while the inner diameter of the through hole is 7 mm.
[0008] The beneficial effect of this improvement is that the through hole in the sleeve can facilitate the entry and exit of the visual mirror.
[0009] For easier holding:
[0010] As a further improvement of the above technical solution: the five handles are equidistantly arranged at one end of the sleeve, and the length from the center point of the through hole to the root of the handle is 1.7 cm, and the length from the center point of the through hole to the handle head is 3.5 cm.
[0011] The beneficial effect of this improvement is that the provision of the handle makes it easier for the surgeon to hold the ring saw to perform surgery.
[0012] To facilitate the concealment of tissue in the surgical area during circular resection surgery:
[0013] As a further improvement of the above technical solution: the twelve saw teeth are equidistantly arranged at the other end of the sleeve away from the handle, and the height of the saw teeth is 2 mm and the shape is a triangle.
[0014] The beneficial effect of this improvement is that, by setting up the saw teeth, it is convenient to perform circular resection of tissues such as the articular process or the push plate that obstructs the surgical area during the rotational resection.
[0015] For easy indication of osteotomy depth:
[0016] As a further improvement of the above technical solution: the scale line 1 is set on the outer wall of the sleeve, and the scale line 2 is set on the inner wall of the through hole. The setting directions of the scale line 1 and the scale line 2 are both set along the length direction of the sleeve, and the scale value of the scale line 1 increases successively from the handle to the saw teeth, while the scale value of the scale line 2 increases successively from the saw teeth to the handle.
[0017] The beneficial effect of this improvement is that by setting up the scale line 1 and the scale line 2, it is convenient to intuitively indicate the osteotomy depth to prevent excessive depth from damaging other tissues. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is the front view of the utility model;
[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model;
[0020] Figure 3 It is a top view of the utility model;
[0021] Figure 4 It is a bottom view of the utility model;
[0022] In the figure: 1. sleeve; 2. through hole; 3. handle; 4. serration; 5. scale line one; 6. scale line two. DETAILED DESCRIPTION
[0023] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.
[0024] like Figure 1-4As shown, a percutaneous endoscopic external ring saw comprises a sleeve 1, a through hole 2 is formed in the sleeve 1, a handle 3, saw teeth 4 and a scale line 5 are arranged on the sleeve 1, the number of the handles 3 is five, the number of the saw teeth 4 is twelve, and the through hole 2 is provided with a scale line 6. The number of the handles 3 in the utility model is five, which can be convenient for the axial movement during surgical use, conform to the mechanical structure, and facilitate the surgeon to apply force more accurately during the operation. When there are other instruments around the handle 3 causing obstruction, reasonable angle adjustment can be made to apply appropriate force. The through hole 2 is formed along the length direction of the sleeve 1, and the length of the through hole 2 is 18 cm, and the inner diameter of the through hole 2 is 7 mm. The establishment of the through hole 2 in the sleeve 1 can facilitate the entry and exit of the viewing scope. The five handles 3 are equidistantly arranged at one end of the sleeve 1, and the length from the center point of the through hole 2 to the root of the handle 3 is 1.7cm, and the length from the center point of the through hole 2 to the head end of the handle 3 is 3.5cm. The handle 3 can facilitate the surgeon to hold the ring saw for surgical operations. The twelve saw teeth 4 are equidistantly arranged at the other end of the sleeve 1 away from the handle 3, and the height of the saw teeth 4 is 2mm, and its shape is triangular. The saw teeth 4 can facilitate the articular process or push plate and other tissues that block the surgical area during the circular resection operation under rotation. The scale line 1 5 is arranged on the outer wall of the sleeve 1, and the scale line 2 6 is arranged on the inner wall of the through hole 2. The setting directions of the scale line 1 5 and the scale line 2 6 are all arranged along the length direction of the sleeve 1, and the scale value of the scale line 1 5 increases successively from the handle 3 to the saw tooth 4, and the scale value of the scale line 2 6 increases successively from the saw tooth 4 to the handle 3. The establishment of the scale line 1 5 and the scale line 2 6 can facilitate the intuitive indication of the osteotomy depth to prevent excessive depth from damaging other tissues.
[0025] The working principle of the utility model is as follows: by setting up the through hole 2 in the sleeve 1, it is convenient to put the visual mirror in and out; by setting up the handle 3, and the number of the handle 3 is five, it is convenient to conform to the mechanical structure during the axial movement during the operation, so that the surgeon can use force more accurately during the operation; and when there are other instruments around the handle 3 causing obstruction, reasonable angle adjustment can be made to apply appropriate force; by setting up the saw teeth 4, it is convenient to perform circular resection of tissues such as the articular process or the push plate that obstructs the operation area during the rotation; by setting up the scale line 1 5 and the scale line 2 6, it is convenient to intuitively indicate the osteotomy depth to prevent excessive depth from damaging other tissues.
[0026] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.
[0027] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.
Claims
1. A transforaminal endoscopic external ring saw, comprising a sleeve (1), characterized in that: The sleeve (1) is provided with a through hole (2), and the sleeve (1) is provided with a handle (3), saw teeth (4) and a scale line one (5), wherein the number of the handles (3) is five, the number of the saw teeth (4) is twelve, and the through hole (2) is provided with a scale line two (6).
2. The transforaminal endoscopic external ring saw according to claim 1, characterized in that: The through hole (2) is opened along the length direction of the sleeve (1), and the length of the through hole (2) is 18 cm, while the inner diameter of the through hole (2) is 7 mm.
3. The transforaminal endoscopic external ring saw according to claim 1, characterized in that: The five handles (3) are equidistantly arranged at one end of the sleeve (1), and the length from the center point of the through hole (2) to the root of the handle (3) is 1.7 cm, while the length from the center point of the through hole (2) to the head end of the handle (3) is 3.5 cm.
4. The transforaminal endoscopic external ring saw according to claim 1, characterized in that: The twelve saw teeth (4) are equidistantly arranged at the other end of the sleeve (1) away from the handle (3), and the height of the saw teeth (4) is 2 mm, and the shape is triangular.
5. The transforaminal endoscopic external ring saw according to claim 1, characterized in that: The scale line 1 (5) is arranged on the outer wall of the sleeve (1), and the scale line 2 (6) is arranged on the inner wall of the through hole (2). The scale line 1 (5) and the scale line 2 (6) are arranged along the length direction of the sleeve (1), and the scale value of the scale line 1 (5) increases in sequence from the handle (3) to the saw teeth (4), while the scale value of the scale line 2 (6) increases in sequence from the saw teeth (4) to the handle (3).