Osteotome guiding drag hook
By designing the grip structure and guide block of the bone knife guide hook, the problem of inaccurate position of inexperienced doctors under the bone knife is solved, achieving higher operating accuracy and lower surgical complexity.
Patent Information
- Application Number
- CN202421699825.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-17
AI Technical Summary
In osteotomy surgery for congenital hip dysplasia, inexperienced physicians may lead to inaccurate position of the bone knife, increasing patient pain and prolonging the operation time.
A bone knife guide hook is designed, including a gripping structure, a positioning structure and a bone knife guide block with a downward inclination angle, through which the accuracy of the position of the bone knife is achieved.
By setting up the grip structure and guide block, the accuracy of the position of the undercut of the bone knife is significantly improved, the operation difficulty is reduced, and the operation time is reduced.
Smart Images
Figure CN222968615U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of surgical instruments, and in particular to a bone knife guide hook. Background Art
[0002] In osteotomy surgery for congenital hip dysplasia, the hip joint needs to be cut with a bone knife. Since the hip joint cannot be seen directly during the operation, a preliminary positioning and cutting will be performed first. After the cutting is completed, the hip joint will be photographed with X-rays to confirm whether the cutting position is accurate. If it is accurate, subsequent operations will be performed. If it is not accurate, the above steps will be repeated until the position is appropriate for subsequent surgical operations.
[0003] For doctors with many years of clinical experience, the possibility of error in this operation is small, but in view of the current expansion of the medical team, there are not enough experienced doctors to rotate, so some young doctors also need to perform the above operation, but due to the lack of corresponding experience, it may lead to the need for repeated position confirmation, which increases the pain of the patient and prolongs the operation time. Therefore, in order to solve the above problems, the present application provides a bone knife guide hook. Utility Model Content
[0004] In order to solve the problem of inaccurate cutting position of bone knives by inexperienced doctors, the present application provides a bone knife guide hook.
[0005] The present application provides a bone knife guide hook, comprising a gripping structure, which comprises a front section, a middle section and a gripping section from front to back. The front end of the front section is provided with a positioning structure, and the middle section is welded with a bone knife guide block with a downward inclination angle to limit the direction of the bone knife.
[0006] Preferably, the guide block of the bone cutter is provided with a plurality of guide grooves which are slidably fitted with the bone cutter.
[0007] Preferably, the guide groove comprises guide groove one and guide groove two, guide groove one and guide groove two are arranged in parallel, and guide groove two is close to one side of the middle section.
[0008] Preferably, the positioning structure is a hook bent toward the front side and away from the guide block.
[0009] Preferably, the gripping section is bent toward a side away from the guide block.
[0010] Preferably, the widths of the gripping section, the middle section and the front section decrease gradually.
[0011] Preferably, the included angle between the guide block and the midline of the gripping structure is in the range of 15-30°.
[0012] In summary, the present application includes the following beneficial technical effects:
[0013] By providing a holding structure, a hook is provided at the front section of the holding structure to position the front section thereof, and a guiding block is provided at the middle section to guide the bone knife, thereby achieving the accuracy of the cutting position of the bone knife. Compared with the prior art, the operation is more convenient and the difficulty of getting started is lower.
[0014] In addition, the structure of the present application is simple and the practical cost is low, which is suitable for wide-range popularization and application. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is the isometric view in the first embodiment of the present application;
[0016] Figure 2 is the top view in the first embodiment of the present application;
[0017] Figure 3 is the bottom view in the first embodiment of the present application;
[0018] Figure 4 is the side view in the first embodiment of the present application.
[0019] Description of the reference numerals: 1, holding structure; 11, front section; 12, middle section; 13, holding section; 2, guiding block; 21, first guiding groove; 22, second guiding groove; 3, hook. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] The following further describes the present application in detail Figure 1 - Figure 4 with reference to the accompanying drawings.
[0021] Embodiment 1:
[0022] A bone knife guiding hook, referring to Figure 1 - Figure 4 , includes a holding structure 1. The holding structure 1 is successively composed of a front section 11, a middle section 12 and a holding section 13 from front to back. A positioning structure is provided at the front end of the front section 11. The positioning structure is a hook 3 that bends forward and away from the guiding block 2. The hook 3 has a U-shaped structure in top view and an I-shaped structure in side view, and its free end is a pointed structure. The hook 3 is used to hook the edge position of the pelvis, thereby stabilizing the position of the front section 11 of the holding structure 1, ensuring the stable position of the holding structure 1, and preventing slippage during the subsequent bone knife operation, which affects the cutting position.
[0023] The middle section 12 is welded with a bone knife guide block 2 having a downward inclination angle. The included angle between the guide block 2 and the midline of the holding structure 1 is in the range of 15 - 30°. This restricts the orientation of the bone knife. The bone knife guide block 2 is provided with a number of guide grooves that are slidably fitted with the bone knife. The guide grooves include a first guide groove 21 and a second guide groove 22. The first guide groove 21 and the second guide groove 22 are arranged in parallel. The second guide groove 22 is closer to the middle section 12. When the device is in use, first hook the retractor 3 on the edge position of the pelvis. After adjusting the angle, slide the edge of the bone knife into the first guide groove 21 or the second guide groove 22, so that the side of the bone knife is completely fitted and slides along the inner wall of the guide groove. Set along the direction of the guide groove, lower the bone knife to the position of the pelvis to observe the accuracy of the position. When the cutting position is appropriate, push the bone knife along the direction of the guide groove and cut into the pelvis. Then perform subsequent surgical operations.
[0024] The holding section 13 is bent towards the side away from the guide block 2, and the bending angle is 15 - 30°. On the one hand, the bending of the holding section 13 can pry the wound position to one side for easy observation. On the other hand, it can avoid conflicts with the position of the bone knife handle and cause problems such as deviation of the cutting position. The widths of the holding section 13, the middle section 12, and the front section 11 decrease gradually.
[0025] The above are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.
Claims
1. A bone knife guide hook, comprising a gripping structure (1), wherein the gripping structure (1) comprises, from front to back, a front section (11), a middle section (12) and a gripping section (13), characterized in that: The front end of the front section (11) is provided with a positioning structure, and the middle section (12) is welded with a bone knife guide block (2) with a downward inclination angle to limit the direction of the bone knife.
2. The bone knife guide hook according to claim 1, characterized in that: The guide block (2) of the bone cutter is provided with a plurality of guide grooves which are slidably fitted with the bone cutter.
3. A bone knife guide hook according to claim 2, characterized in that: The guide groove comprises a first guide groove (21) and a second guide groove (22). The first guide groove (21) and the second guide groove (22) are arranged in parallel, and the second guide groove (22) is close to one side of the middle section (12).
4. The bone knife guide hook according to claim 1, characterized in that: The positioning structure is a draw hook (3) bent toward the front side and away from the guide block (2).
5. The bone knife guide hook according to claim 4, characterized in that: The gripping section (13) is bent toward a side facing away from the guide block (2).
6. The bone knife guide hook according to claim 1, characterized in that: The widths of the gripping section (13), the middle section (12) and the front section (11) decrease gradually.
7. The bone knife guide hook according to claim 1, characterized in that: The included angle between the midline of the guide block (2) and the gripping structure (1) is in the range of 15-30°.