Rotation adjusting device for bone tissue cutting knife system and bone tissue cutting knife system
By designing a rotation adjustment device in the bone tissue cutting knife system, the 360° angle rotation and stop of the grinding head protective sleeve is achieved, which solves the problem of precise cutting caused by the fixation of grinding head angle in the prior art, and improves surgical efficiency.
Patent Information
- Application Number
- CN202420491017.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-13
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-03-13
AI Technical Summary
In the existing bone tissue cutting knife system, the angle of the abrasive head protective sleeve is fixed and cannot be adjusted, resulting in the inability to accurately cut tiny parts of necrotic bone tissue at different locations, which is inefficient in surgical efficiency and requires high operator requirements.
A rotation adjustment device is designed, including a rotary dial and a damping device, which drives the protective sleeve to rotate, and the damping device restricts it from stopping at any angle within the 360° angle range.
The grinding head protective sleeve is rotated and stopped at any angle within the 360° angle range, which facilitates precise cutting of tiny parts of necrotic bone tissue at different positions and improves surgical efficiency.
Smart Images
Figure CN222676354U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to a rotation adjustment device for a bone tissue cutting knife system and the bone tissue cutting knife system. Background Art
[0002] The bone tissue cutting knife system is used to remove necrotic bone tissue in the femoral head. The lesion location is observed by repeated X-ray filming to prevent deviation in the cutting action. Then, the necrotic bone tissue is removed using a grinding head clamped by a mobile phone to ensure that the desired cavity is formed in the femoral head. In the existing bone tissue cutting knife system, the angle of the protective sleeve for installing the grinding head is fixed, so the angle position of the grinding head cannot be adjusted, and thus the tiny part of the necrotic bone tissue in different positions cannot be accurately cut, resulting in poor surgical efficiency and high requirements on the operator. Utility Model Content
[0003] In order to solve the technical problems existing in the prior art, the embodiments of the present utility model provide a rotation adjustment device for a bone tissue cutting knife system and a bone tissue cutting knife system, which can realize the rotation and stop of the protective sleeve on which the grinding head is installed at any angle within a 360° angle range.
[0004] The embodiment of the utility model provides a rotation adjustment device for a bone tissue cutting knife system. The rotation adjustment device comprises: a rotating dial, which is sleeved on the protective sleeve of the bone tissue cutting knife system; and a damping device, which is sleeved on the protective sleeve of the bone tissue cutting knife system; wherein the rotating dial is used to drive the protective sleeve to rotate around the axis of the protective sleeve, and the damping device is used to limit the protective sleeve to stop at any angle within a 360° angle range.
[0005] According to some embodiments of the present utility model, the damping device includes a damper and a damping sleeve, and the damping sleeve is sleeved on the damper.
[0006] According to some embodiments of the present utility model, the damper includes a rotating part and a fixed part, the rotating part is fixed in the damping sleeve, and the fixed part is sleeved on the rotating part.
[0007] According to some embodiments of the utility model, a limiting protrusion is provided on the damping sleeve, and the rotation adjustment device further includes a limiting block, and the limiting protrusion and the limiting block cooperate with each other to limit the rotation of the protective sleeve within an angle range of 360°.
[0008] According to some embodiments of the present utility model, the limiting block includes a limiting shaft and a limiting plate located in the middle of the limiting shaft, and the limiting shaft is mounted on the housing of the bone tissue cutting knife system.
[0009] According to some embodiments of the present utility model, the limiting block can move a distance relative to the housing of the bone tissue cutting knife system, and the distance is equal to the thickness of the limiting plate.
[0010] According to some embodiments of the utility model, the rotation adjustment device also includes a positioning bead, and a positioning groove is provided in the rotating dial wheel. The positioning bead and the positioning groove cooperate with each other to position the rotating dial wheel.
[0011] According to some embodiments of the present utility model, the rotating dial is connected to the protective sleeve via a first Haversian block, and the damping device is connected to the protective sleeve via a second Haversian block.
[0012] According to some embodiments of the present utility model, the rotation adjustment device further includes a simply supported beam structure for mounting the protective sleeve to the housing of the bone tissue cutting knife system.
[0013] An embodiment of the utility model further provides a bone tissue cutting knife system, comprising a protective sleeve and a shell for mounting the protective sleeve, and also comprising a rotation adjustment device for the bone tissue cutting knife system, for rotating and adjusting the position of the protective sleeve relative to the shell.
[0014] In the rotation adjustment device for the bone tissue cutting knife system in the above-mentioned embodiment, the rotation adjustment device includes: a rotating dial, which is sleeved on the protective sleeve of the bone tissue cutting knife system; a damping device, which is sleeved on the protective sleeve of the bone tissue cutting knife system; wherein the rotating dial is used to drive the protective sleeve to rotate around the axis of the protective sleeve, and the damping device is used to limit the protective sleeve to stop at any angle within a 360° angle range.
[0015] Through the rotating dial and the damping device, the protective sleeve on which the grinding head is installed can be rotated and stopped at any angle within a 360° angle range, which facilitates the precise cutting of tiny portions of necrotic bone tissue at different positions and improves surgical efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Other features and advantages of the present invention will be better understood through the optional embodiments described in detail below in conjunction with the accompanying drawings, in which the same reference numerals represent the same or similar components, wherein:
[0017] Figure 1 A schematic structural diagram of a rotation adjustment device for a bone tissue cutting knife system according to an embodiment of the utility model is shown;
[0018] Figure 2 Shows Figure 1A schematic cross-sectional view of a rotation adjustment device for a bone tissue cutting knife system; and
[0019] Figure 3 and Figure 4 Shows Figure 1 Schematic diagram of the structure of the rotation process of the rotation adjustment device for the bone tissue cutting knife system. DETAILED DESCRIPTION
[0020] The implementation and use of the embodiments are discussed in detail below. However, it should be understood that the specific embodiments discussed are merely exemplary of specific ways to implement and use the present invention, and are not intended to limit the scope of the present invention. When describing the structural positions of the various components, such as up, down, top, bottom, etc., the expressions of directions are not absolute, but relative. When the various components are arranged as shown in the figure, these directional expressions are appropriate, but when the positions of the various components in the figure change, these directional expressions also change accordingly.
[0021] As mentioned above, in the existing bone tissue cutting knife system, the angle of the protective sleeve on which the grinding head is installed is fixed, so the angle position of the grinding head cannot be adjusted, thereby failing to accurately cut tiny portions of necrotic bone tissue at different locations, resulting in poor surgical efficiency and high requirements on the operator.
[0022] To this end, an embodiment of the utility model provides a rotation adjustment device for a bone tissue cutting knife system. The rotation adjustment device comprises: a rotating dial, which is sleeved on the protective sleeve of the bone tissue cutting knife system; and a damping device, which is sleeved on the protective sleeve of the bone tissue cutting knife system; wherein the rotating dial is used to drive the protective sleeve to rotate around the axis of the protective sleeve, and the damping device is used to limit the protective sleeve to stop at any angle within a 360° angle range.
[0023] The structure and function of the rotation adjustment device for the bone tissue cutting knife system according to the embodiment of the utility model will be described in detail below with reference to the accompanying drawings.
[0024] Figure 1 FIG. 4 is a schematic structural diagram of a rotation adjustment device 40 for a bone tissue cutting knife system according to an embodiment of the utility model. Figure 2 Shows Figure 1 A cross-sectional schematic diagram of a rotation adjustment device 40 for a bone tissue cutting knife system, Figure 3 and Figure 4 Shows Figure 1 FIG. 4 is a structural schematic diagram of the rotation process of the rotation adjustment device 40 for the bone tissue cutting knife system.
[0025] like Figure 1 to Figure 2As shown in the figure, the rotation adjustment device 40 for the bone tissue cutting knife system includes a rotating dial 41 and a damping device 42. The rotating dial 41 is sleeved on the protective sleeve 50 of the bone tissue cutting knife system, and the damping device 42 is sleeved on the protective sleeve 50 of the bone tissue cutting knife system. The rotating dial 41 is used to drive the protective sleeve 50 to rotate around the axis of the protective sleeve 50, and the damping device 42 is used to limit the protective sleeve 50 to stop at any angle within the 360° angle range.
[0026] By rotating the dial 41 and the damping device 42, the protective sleeve 50 on which the grinding head 10 is installed can be rotated and stopped at any angle within a 360° angle range, which facilitates the precise cutting of tiny portions of necrotic bone tissue at different positions and improves surgical efficiency.
[0027] In some embodiments, the damping device 42 includes a damper 421 and a damping sleeve 422, wherein the damping sleeve 422 is sleeved on the damper 421. The damper 421 includes a rotating portion 4211 and a fixed portion 4212, wherein the rotating portion 4211 is fixed in the damping sleeve 422, and the fixed portion 4212 is sleeved on the rotating portion 4211.
[0028] When the rotation adjustment device 40 is installed on the bone tissue cutting knife system, the fixed portion 4212 of the damper 421 is fixed to the housing of the bone tissue cutting knife system. During the rotation of the protective sleeve 50, the rotating portion 4211 of the damper 421 can rotate together with the damping sleeve 422, while the fixed portion 4212 is fixed. The friction between the rotating portion 4211 and the fixed portion 4212 prevents the protective sleeve 50 from continuing to rotate after rotating to the desired position, and can ensure that the protective sleeve 50 stops at the desired position.
[0029] Combination Figure 3 and Figure 4 As shown in , in some embodiments, a limiting protrusion 4221 is provided on the damping sleeve 422, and the rotation adjustment device 40 further includes a limiting block 43, and the limiting protrusion 4221 and the limiting block 43 cooperate with each other to limit the rotation of the protective sleeve within an angle range of 360°.
[0030] In some embodiments, the limit block 43 includes a limit shaft 431 and a limit plate 432 located in the middle of the limit shaft 431, and the limit shaft 431 is installed on the housing of the bone tissue cutting knife system. The limit block 43 can move a distance relative to the housing of the bone tissue cutting knife system, and the distance is equal to the thickness of the limit plate 432.
[0031] During use, the protective sleeve 50 is limited to rotate within a 360° angle range by the cooperation of the limiting protrusion 4221 on the damping sleeve 422 and the limiting plate 432 on the limiting block 43. However, due to the certain thickness of the limiting block 43, the actual rotation angle range of the protective sleeve 50 is less than 360°. The limiting plate 432 is movably mounted on the housing of the bone tissue cutting knife system through the limiting shaft 431, and the distance that the limiting block 43 can move relative to the housing of the bone tissue cutting knife system is equal to the thickness of the limiting plate 432. When the limiting protrusion 4221 on the damping sleeve 422 rotates to contact the limiting plate 432 on the limiting block 43, the limiting protrusion 4221 drives the limiting block 43 to move toward the housing of the bone tissue cutting knife system by a distance equal to the thickness of the limiting plate 432, so that the actual rotation angle range of the protective sleeve 50 is equal to 360°.
[0032] In some embodiments, the rotation adjustment device 40 also includes a positioning bead 44, which is fixed to the outer shell of the bone tissue cutting knife system. A positioning groove 411 is provided in the rotating dial 41, and the positioning bead 44 and the positioning groove 411 cooperate to position the rotating dial 41.
[0033] In some embodiments, the rotating dial 41 is connected to the protective sleeve 50 through the first Haversian block 412, and the damping device 42 is connected to the protective sleeve 50 through the second Haversian block 423. Specifically, the rotating portion 4211 of the damper 421 and the damping sleeve 422 are connected to the protective sleeve 50 through the second Haversian block 423. The first Haversian block 412 and the second Haversian block 423 respectively include two semicircular Haversian blocks, and the rotating dial 41 and the damping device 42 are mounted to the protective sleeve 50 by clamping the two semicircular Haversian blocks.
[0034] In some embodiments, the rotation adjustment device 40 further includes a simply supported beam structure 45 for mounting the protective sleeve 50 to the housing of the bone tissue cutting knife system. The simply supported beam structure 45 includes a first bearing 451 and a second bearing 452 sleeved on the protective sleeve 50, and the first bearing 451 and the second bearing 452 are respectively located on both sides of the damping device 42. The first bearing 451 is also mounted to the protective sleeve 50 through the second Haversian block 423.
[0035] The protection sleeve 50 is supported by the first bearing 451 and the second bearing 452 to form a simply supported beam structure 45 . The first bearing 451 and the second bearing 452 restrict the vertical displacement of the protection sleeve 50 , but allow the protection sleeve 50 to rotate freely.
[0036] When in use, the rotating dial 41 of the rotating adjustment device 40 is rotated to drive the protective sleeve 50 and the grinding head 10 to rotate, and the rotating part 4211 and the damping sleeve 422 of the damper 421 rotate together; when rotated to the desired position, the friction between the rotating part 4211 and the fixed part 4212 prevents the protective sleeve 50 from continuing to rotate, thereby ensuring that the protective sleeve 50 stops at the desired position.
[0037] An embodiment of the utility model further provides a bone tissue cutting knife system, comprising a protective sleeve and a shell for mounting the protective sleeve, and also comprising a rotation adjustment device for the bone tissue cutting knife system, for rotating and adjusting the position of the protective sleeve relative to the shell.
[0038] In the rotation adjustment device for the bone tissue cutting knife system of the above embodiment, the rotation adjustment device includes: a rotating dial, which is sleeved on the protective sleeve of the bone tissue cutting knife system; a damping device, which is sleeved on the protective sleeve of the bone tissue cutting knife system; wherein the rotating dial is used to drive the protective sleeve to rotate around the axis of the protective sleeve, and the damping device is used to limit the protective sleeve to stop at any angle within the 360° angle range. Through the rotating dial and the damping device, the protective sleeve on which the grinding head is installed can be rotated and stopped at any angle within the 360° angle range, which is convenient for precise cutting of small parts of necrotic bone tissue at different positions, thereby improving the efficiency of the operation.
[0039] The technical content and technical features of the utility model have been disclosed above. However, it can be understood that under the creative idea of the utility model, technicians in this field can make various changes and improvements to the above-disclosed concepts, but they all belong to the protection scope of the utility model. The description of the above implementation mode is illustrative rather than restrictive, and the protection scope of the utility model is determined by the claims.
Claims
1. A rotation adjustment device for a bone tissue cutting knife system, characterized in that: include: A rotating dial, sleeved on the protective sleeve of the bone tissue cutting knife system; as well as A damping device, sleeved on the protective sleeve of the bone tissue cutting knife system; The rotating dial is used to drive the protective sleeve to rotate around the axis of the protective sleeve, and the damping device is used to limit the protective sleeve to stop at any angle within a 360° angle range.
2. The rotation adjustment device for a bone tissue cutting knife system according to claim 1, characterized in that: The damping device comprises a damper and a damping sleeve, and the damping sleeve is sleeved on the damper.
3. The rotation adjustment device for a bone tissue cutting knife system according to claim 2, characterized in that: The damper comprises a rotating part and a fixed part, the rotating part is fixed in the damping sleeve, and the fixed part is sleeved on the rotating part.
4. The rotation adjustment device for a bone tissue cutting knife system according to claim 3, characterized in that: The damping sleeve is provided with a limiting protrusion, and the rotation adjustment device also includes a limiting block. The limiting protrusion and the limiting block cooperate with each other to limit the rotation of the protective sleeve within an angle range of 360°.
5. The rotation adjustment device for a bone tissue cutting knife system according to claim 4, characterized in that: The limiting block comprises a limiting shaft and a limiting plate located in the middle of the limiting shaft, and the limiting shaft is mounted on the housing of the bone tissue cutting knife system.
6. The rotation adjustment device for a bone tissue cutting knife system according to claim 5, characterized in that: The limiting block can move a distance relative to the housing of the bone tissue cutting knife system, and the distance is equal to the thickness of the limiting plate.
7. The rotation adjustment device for a bone tissue cutting knife system according to any one of claims 1 to 6, characterized in that: The rotation adjustment device also includes a positioning bead, and a positioning groove is arranged in the rotating dial. The positioning bead and the positioning groove cooperate with each other to position the rotating dial.
8. The rotation adjustment device for a bone tissue cutting knife system according to any one of claims 1 to 6, characterized in that: The rotating dial is connected to the protective sleeve via a first Haversian block, and the damping device is connected to the protective sleeve via a second Haversian block.
9. The rotation adjustment device for a bone tissue cutting knife system according to any one of claims 1 to 6, characterized in that: The rotation adjustment device also includes a simply supported beam structure for mounting the protective sleeve to the housing of the bone tissue cutting knife system.
10. A bone tissue cutting knife system, characterized in that: The invention comprises a protective sleeve and a shell for mounting the protective sleeve, and also comprises a rotation adjustment device for a bone tissue cutting knife system according to any one of claims 1 to 9, for rotating and adjusting the position of the protective sleeve relative to the shell.