Adjustable multi-angle bone file
By setting a rotatable connecting hole and rotation shaft on the file head of the bone file, combined with the design of pushers and core rods, the multi-angle adjustment of the file head is achieved, solving the problem of single angle of the existing bone file, and improving the success of the operation rate and efficiency.
Patent Information
- Application Number
- CN202420652290.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-03-29
AI Technical Summary
The existing bone files have a single angle, which is difficult to meet the needs of multi-angle surgery, resulting in an extended surgical time and a reduced success rate.
An adjustable multi-angle bone file is designed, and multi-angle adjustment of the file head is achieved by setting a rotatable connecting hole and rotating shaft on the file head, combining the design of pushers and core rods.
The design allows doctors to adjust the angle of the file head in real time according to surgical needs, improving the efficiency and success rate of the operation and reducing waste of surgical time.
Smart Images
Figure CN222467024U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of medical instruments, and in particular to an adjustable multi-angle bone rasp. Background Art
[0002] A bone rasp is a medical auxiliary tool mainly used in joint replacement and spinal surgery. The blade of a bone rasp usually has rasp teeth. Its core function is to help surgeons scrape and trim the surface of bone tissue to make it smoother and flatter.
[0003] Currently, bone rasps available on the market have a single angle, and bone rasps of different angles need to be replaced multiple times during an operation to meet surgical needs. Even during endoscopic surgery, bone rasps of the required angle are difficult to fit into the access cannula, which greatly delays the operation time and even affects the success rate of the operation. Utility Model Content
[0004] In order to improve the success rate of surgery, the present application provides an adjustable multi-angle bone rasp.
[0005] The adjustable multi-angle bone rasp provided in the present application adopts the following technical solution:
[0006] An adjustable multi-angle bone rasp, comprising
[0007] A handle, wherein a connecting rod is disposed at one end of the handle, the connecting rod is disposed along the length direction of the handle, and the connecting rod is a tubular structure;
[0008] A core rod, wherein one end of the core rod is arranged inside the connecting rod and inside the handle, and a push handle is arranged on the handle to push the core rod to slide along the length direction of the connecting rod, and the push handle is connected to the core rod;
[0009] A file head, wherein the file head is arranged at an end of the connecting rod and the core rod away from the handle, and the file head is provided with a first connecting hole rotatably connected to the end of the connecting rod and the core rod at the end close to the connecting rod and the core rod, and a second connecting hole rotatably connected to the end of the core rod, a first rotating shaft is provided at the end of the connecting rod, the first rotating shaft is passed through the first connecting hole, the file head rotates along the first rotating shaft, the second connecting hole is located on the inner side of the first connecting hole and is arranged to be an arc hole, a second rotating shaft is provided on the core rod, the second rotating shaft is passed through the second connecting hole, and is slidably connected to the arc hole, and the file head rotates with the movement of the core rod.
[0010] By adopting the above technical solution, a first connecting hole and a second connecting hole are opened at the end of the file head, and the first rotating shaft on the connecting rod is rotatably connected to the file head through the first connecting hole, and the second rotating shaft on the core rod slides in the second connecting hole. The core rod carrying the second rotating shaft is driven by the push handle to interact along the inside of the connecting rod, so that the angle of the file head can be changed. The adjustable file head allows the doctor to adjust the angle of the file head according to the specific needs of the operation, and the angle can be adjusted at any time according to the different needs of trimming the bone surface, thereby improving the success rate of the operation.
[0011] Preferably, the push handle includes a push handle arranged on one side of the handle, a connecting plate fixedly connected to the push handle, and a rotating member fixed to one end of the connecting plate and rotatably connected to the handle, a third rotating shaft rotatably connected to the core rod is provided on the connecting plate, and a movable hole for the movement of the third rotating shaft is opened on the handle, and the movable hole is opened along the length direction of the connecting rod.
[0012] By adopting the above technical solution, when the angle of the file head needs to be changed, the push handle is pushed. At this time, the push handle rotates along the central axis of the rotating part, and the third rotating shaft starts to move along the movable hole. The end of the core rod rotatably connected to the third rotating shaft moves along the inside of the connecting rod relative to the movement of the third rotating shaft, and at the same time drives the file head to rotate, thereby changing the angle of the file head. The operation steps are simple and efficient, and the success rate of the operation is further improved.
[0013] Preferably, an anti-slip protrusion is provided on the outer side of the push handle.
[0014] By adopting the above technical solution, when adjusting the angle of the file head, it is necessary to proceed slowly, and an anti-slip protrusion is provided on the outside of the push handle to prevent the hand from slipping and causing uncontrolled adjustment when adjusting the file head, thereby improving the safety of the operation and further improving the success rate of the operation.
[0015] Preferably, the core rod is arranged in the middle position of the connecting plate.
[0016] By adopting the above technical solution, the core rod is set in the middle position of the connecting plate, and the core rod is prevented from falling off when the core rod is adjusted by the push handle, thereby improving the safety of the operation and further improving the success rate of the operation.
[0017] Preferably, a limiting device is further included, wherein the limiting device includes a gear arranged outside the rotating member, and a limiting member for limiting the rotation of the gear, and the limiting member is clamped inside the gear to limit the rotation of the gear.
[0018] By adopting the above technical solution, a gear is arranged on the outside of the rotating part. When the pushing handle rotates along the rotating part, the gear rotates along the axis of the rotating part with the rotating part. When the file head rotates to the required angle, the limiter is stuck inside the gear to prevent the gear from rotating, thereby preventing the pushing handle from rotating and further preventing the file head from deflecting, thereby ensuring the safety during surgery and further improving the success rate of the surgery.
[0019] Preferably, the limiting member is configured as a limiting plate rotatably connected to the handle, a fourth rotating shaft is arranged in the middle position of the limiting plate, the fourth rotating shaft is rotatably connected to the handle, a barb is arranged at one end of the limiting plate close to the gear, and a driving member is arranged at one end of the limiting plate away from the gear, and the driving member controls the limiting plate to rotate along the fourth rotating shaft.
[0020] By adopting the above technical solution, a barb is provided at one end of the limit plate close to the gear, and rotates along the fourth rotating axis under the drive of the driving member. When the file head needs to be fixed and limited, the barb is stuck in the gear. When the file head needs to be adjusted, the limit plate rotates in the opposite direction around the fourth rotating axis and disengages from the gear. At this time, the push handle is pushed to adjust the file head. The structure is simple and convenient, and the file head can be limited quickly, further improving the success rate of the operation.
[0021] Preferably, the driving member is configured as a compression spring, and a limit button is provided at one end of the limit plate close to the compression spring.
[0022] By adopting the above technical solution, the driving part is set as a compression spring. When the file head does not need to be adjusted, the compression spring abuts against the limit plate, so that the barb is tightly stuck between the gears, thereby fixing the file head. When adjusting the file head, it is only necessary to press the limit button to compress the spring to loosen the barb on the head of the limit button, thereby pushing the push handle to adjust the angle of the file head. The overall structure is simple and easy to operate.
[0023] Preferably, a circular hole for installing the compression spring is provided at one end of the limiting plate connected to the compression spring.
[0024] By adopting the above technical solution, a round hole for installing a compression spring is opened on the limit plate. The compression spring is located in the round hole when moving and is not easy to fall off, thereby ensuring the safety of the operation, reducing the difficulty of the operation to a certain extent, and improving the success rate of the operation.
[0025] In summary, the present application includes at least one of the following beneficial technical effects:
[0026] The end of the file head is provided with a first connecting hole and a second connecting hole, and the first rotating shaft on the connecting rod is rotatably connected to the file head through the first connecting hole, and the second rotating shaft on the core rod slides in the second connecting hole. The core rod is driven by the push handle to carry the second rotating shaft to interact along the inside of the connecting rod, so that the file head can change its angle. The device is equipped with an adjustable file head, so that the doctor can adjust the angle of the file head according to the specific needs of the operation, and can adjust the angle at any time according to the different needs of trimming the bone surface, thereby improving the success rate of the operation;
[0027] When the angle of the file head needs to be changed, the push handle is pushed. At this time, the push handle rotates along the central axis of the rotating member, and the third rotating shaft starts to move along the moving hole. One end of the core rod rotatably connected to the third rotating shaft moves along the inside of the connecting rod relative to the movement of the third rotating shaft, and at the same time drives the file head to rotate, thereby changing the angle of the file head. The operation steps are simple and efficient, and the success rate of the operation is further improved.
[0028] A gear is arranged on the outside of the rotating part. When the pushing handle rotates along the rotating part, the gear rotates along the axis of the rotating part with the rotating part. When the file head rotates to a desired angle, the limiter is stuck inside the gear to prevent the gear from rotating, thereby preventing the pushing handle from rotating and further preventing the file head from deflecting, thereby ensuring safety during surgery and further improving the success rate of surgery. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 It is a schematic diagram of the structure of an adjustable multi-angle bone rasp of the present application.
[0030] Figure 2 yes Figure 1 Partial cross-sectional view at point A.
[0031] Figure 3 yes Figure 1 Partial cross-sectional view at point B.
[0032] Explanation of the accompanying drawings: 1. handle; 11. movable hole; 2. connecting rod; 21. movable groove; 22. first rotating shaft; 3. core rod; 31. second rotating shaft; 4. file head; 41. file blade; 42. connecting block; 421. first connecting hole; 422. second connecting hole; 5. push handle; 51. push handle; 52. connecting plate; 521. third rotating shaft; 53. rotating member; 6. limiting device; 61. gear; 62. limiting member; 621. limiting plate; 6211. fourth rotating shaft; 6212. hook; 6213. driving member; 6214. limiting button. DETAILED DESCRIPTION
[0033] The following is combined with Figure 1-3 This application is described in further detail.
[0034] The present application embodiment discloses an adjustable multi-angle bone rasp. Figure 1The adjustable multi-angle bone rasp includes a handle 1, a connecting rod 2, a core rod 3, a rasp head 4, a push handle 5 and a limiting device 6.
[0035] Reference Figure 1 The handle 1 is made of plastic, and one end of the handle 1 and the connecting rod 2 are injection molded.
[0036] The connecting rod 2 is configured as a tubular member, and a hole having the same diameter as the inner tube of the connecting rod 2 is provided at one end of the handle 1 connected to the handle 1 .
[0037] The core rod 3 is a solid rod inserted into the connecting rod 2. One end of the core rod 3 passes through the hole opened in the handle 1 and is connected to the push handle 5. The other end is arranged inside the end of the connecting rod 2 away from the handle 1. The core rod 3 slides inside the connecting rod 2 driven by the push handle 5.
[0038] Reference Figure 1 , Figure 2 The file head 4 is arranged at the end of the connecting rod 2 away from the handle 1. Specifically, the file head 4 is divided into a file blade 41 and a connecting block 42. Uneven grinding blocks are arranged on both sides of the file blade 41 to facilitate grinding. The connecting block 42 is arranged perpendicular to the file blade 41, and a first connecting hole 421 and a second connecting hole 422 are provided. The first connecting hole 421 is a circular hole, which is provided at one end close to the file blade 41. The second connecting hole 422 is an arc hole. One end of the arc hole is arranged at the end away from the file blade 41, and is arranged flatly along the length direction of the connecting block 42 with the line connecting the first connecting hole 421, and the other end is arranged perpendicularly to the length direction of the connecting block 42 with the line connecting the first connecting hole 421.
[0039] The connecting rod 2 is provided with a movable groove 21 for installing the connecting block 42 at the end away from the handle 1 , and is provided with a first rotating shaft 22 rotatably connected to the first connecting hole 421 , and the file head 4 rotates along the axis of the first rotating shaft 22 .
[0040] A second rotating shaft 31 penetrating into the second connecting hole 422 is arranged at the end of the core rod 3 away from the handle 1 . The second rotating shaft 31 is fixedly connected to the core rod 3 and slidably connected to the arc hole. The file head 4 rotates with the movement of the core rod 3 .
[0041] Specifically, a first connecting hole 421 and a second connecting hole 422 are provided at the end of the file head 4, and the first rotating shaft 22 on the connecting rod 2 is rotatably connected to the file head 4 through the first connecting hole 421, and the second rotating shaft 31 on the core rod 3 slides in the second connecting hole 422. The push handle 5 drives the core rod 3 to carry the second rotating shaft 31 to interact along the inside of the connecting rod 2, so that the angle of the file head 4 can be changed. Through the adjustable file head 4, the doctor can adjust the angle of the file head 4 according to the specific needs of the operation, and can adjust the angle at any time according to the different needs of trimming the bone surface, thereby improving the success rate of the operation.
[0042] Reference Figure 3 The push handle 5 includes a push handle 51, a connecting plate 52 and a rotating member 53. The push handle 51 is arranged on the outer side of one side of the handle 1 and has an anti-slip protrusion. The rotating member 53 is arranged inside the handle 1 and is rotatably connected to the handle 1. One end of the connecting plate 52 is fixedly connected to the push handle 51 and the other end is fixedly connected to the rotating member 53. The connecting plate 52 is hollow. The core rod 3 is arranged in the middle position of the connecting plate 52 and is rotatably connected to the connecting plate 52 through a third rotating shaft 521 arranged on the connecting plate 52. When the push handle 51 is pushed to make the push handle 5 rotate along the central axis of the rotating member 53, the core rod 3 moves with the rotation of the push handle 5.
[0043] Reference Figure 1 , Figure 3 A moving hole 11 for the third rotating shaft 521 to move is provided on the handle 1, and the moving hole 11 is provided along the length direction of the connecting rod 2. When the angle of the file head 4 needs to be changed, the push handle 51 is pushed. At this time, the push handle 51 rotates along the central axis of the rotating member 53, and the third rotating shaft 521 starts to move along the moving hole 11. One end of the core rod 3 rotatably connected to the third rotating shaft 521 moves along the inside of the connecting rod 2 with respect to the movement of the third rotating shaft 521, and at the same time drives the file head 4 to rotate, thereby changing the angle of the file head 4. The operation steps are simple and efficient, and the success rate of the operation is further improved.
[0044] Reference Figure 3 The limiting device 6 includes a gear 61 and a limiting member 62 .
[0045] The gear 61 is arranged on the outside of the rotating member 53 and is arranged at a half position along the circumference of the rotating member 53. The limit member 62 is arranged as a limit plate 621. A fourth rotating shaft 6211 rotating with the handle 1 is arranged in the middle position of the limit plate 621. A barb 6212 is arranged on the side of the limit plate 621 close to the gear 61 and facing the gear 61. A driving member 6213 is arranged between the other side of the fourth rotating shaft 6211 and the handle 1. The driving member 6213 is arranged as a compression spring. A limit button 6214 is arranged on the outside of the limit plate 621. Specifically, the limit plate 621 has a round hole for installing the compression spring. The compression spring is located in the round hole when moving and is not easy to fall off.
[0046] When there is no need to adjust the file head 4, the compression spring abuts against the limit plate 621, so that the hook 6212 is tightly stuck between the gears 61, thereby fixing the file head 4. When adjusting the file head 4, it is only necessary to press the limit button 6214 to compress the spring to loosen the hook 6212 on the head of the limit button 6214, thereby pushing the push handle 5 to adjust the angle of the file head 4. The overall structure is simple and easy to operate.
[0047] The implementation principle of an adjustable multi-angle bone rasp in the embodiment of the present application is as follows: a first connecting hole 421 and a second connecting hole 422 are provided at the end of the file head 4, and the first rotating shaft 22 on the connecting rod 2 is rotatably connected to the file head 4 through the first connecting hole 421, and the second rotating shaft 31 on the core rod 3 slides in the second connecting hole 422, and the core rod 3 carrying the second rotating shaft 31 is driven by the push handle 5 to interact along the inside of the connecting rod 2, so that the file head 4 can change its angle. The device is equipped with an adjustable file head 4, so that the doctor can adjust the angle of the file head 4 according to the specific needs of the operation, and can adjust the angle at any time according to the different needs of trimming the bone surface, thereby improving the success rate of the operation.
[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. An adjustable multi-angle bone rasp, characterized in that: include A handle (1), wherein a connecting rod (2) is arranged at one end of the handle (1), the connecting rod (2) is arranged along the length direction of the handle (1), and the connecting rod (2) is a tubular structure; A core rod (3), wherein one end of the core rod (3) is arranged inside the connecting rod (2) and inside the handle (1), and a push handle (5) is provided on the handle (1) for pushing the core rod (3) to slide along the length direction of the connecting rod (2), and the push handle (5) is connected to the core rod (3); A file head (4), the file head (4) being arranged at an end of the connecting rod (2) and the core rod (3) away from the handle (1); a first connecting hole (421) rotatably connected to the end of the connecting rod (2) and a second connecting hole (422) rotatably connected to the end of the core rod (3) are arranged at the end of the file head (4) close to the connecting rod (2) and the core rod (3); a first rotating shaft (22) is arranged at the end of the connecting rod (2); the first rotating shaft (22) is inserted into the first connecting hole (421); the file head (4) rotates along the first rotating shaft (22); the second connecting hole (422) is located on the inner side of the first connecting hole (421) and is arranged to be an arc-shaped hole; a second rotating shaft (31) is arranged on the core rod (3); the second rotating shaft (31) is inserted into the second connecting hole (422) and is slidably connected to the arc-shaped hole; the file head (4) rotates with the movement of the core rod (3).
2. The adjustable multi-angle bone rasp according to claim 1, characterized in that: The push handle (5) comprises a push handle (51) arranged on one side of the handle (1), a connecting plate (52) fixedly connected to the push handle (51), and a rotating member (53) fixed to one end of the connecting plate (52) and rotatably connected to the handle (1), a third rotating shaft (521) rotatably connected to the core rod (3) is arranged on the connecting plate (52), and a moving hole (11) for the third rotating shaft (521) to move is provided on the handle (1), and the moving hole (11) is provided along the length direction of the connecting rod (2).
3. The adjustable multi-angle bone rasp according to claim 2, characterized in that: An anti-slip protrusion is arranged on the outer side of the push handle (51).
4. The adjustable multi-angle bone rasp according to claim 2, characterized in that: The core rod (3) is arranged in the middle of the connecting plate (52).
5. The adjustable multi-angle bone rasp according to claim 2, characterized in that: The invention also comprises a limiting device (6), wherein the limiting device (6) comprises a gear (61) arranged outside the rotating member (53), and a limiting member (62) for limiting the rotation of the gear (61), wherein the limiting member (62) is clamped inside the gear (61) to limit the rotation of the gear (61).
6. The adjustable multi-angle bone rasp according to claim 5, characterized in that: The limiting member (62) is configured as a limiting plate (621) rotatably connected to the handle (1); a fourth rotating shaft (6211) is arranged at a middle position of the limiting plate (621); the fourth rotating shaft (6211) is rotatably connected to the handle (1); a barb (6212) is arranged at one end of the limiting plate (621) close to the gear (61); a driving member (6213) is arranged at one end of the limiting plate (621) away from the gear (61); the driving member (6213) controls the limiting plate (621) to rotate along the fourth rotating shaft (6211).
7. The adjustable multi-angle bone rasp according to claim 6, characterized in that: The driving member (6213) is configured as a compression spring, and a limit button (6214) is provided at one end of the limit plate (621) close to the compression spring.
8. The adjustable multi-angle bone rasp according to claim 7, characterized in that: One end of the limiting plate (621) connected to the compression spring is provided with a circular hole for installing the compression spring.