Multi-angle rotary cutting mechanism of minimally invasive planing operation handle

Abstract

The utility model provides a multi-angle rotary cutting mechanism of a minimally invasive planing operation handle, which is applied to the technical field of medical equipment, a driving plate mechanism is rotatably arranged on a handle shell, and at least comprises a rotating driving plate and a rotating conical tooth connected with the rotating driving plate, so that the handle shell is conveniently held by a hand, and the rotating driving plate is shifted by fingers; the rotating bevel gear is driven to rotate; one end of the self-locking mechanism is coaxially connected with the scalpel, and the other end of the self-locking mechanism comprises rotating helical teeth which are in meshed connection with the rotating bevel teeth, so that when the rotating bevel teeth rotate, the rotating helical teeth can be driven to rotate, the self-locking mechanism and the scalpel are made to rotate, and the rotating helical teeth are arranged in the axial direction of the self-locking mechanism; the self-locking mechanism and the scalpel can freely rotate in the axial direction under driving of the drive plate mechanism, the cutting edge angle of the scalpel can be freely adjusted, and the surgical requirement for completely eradicating focus tissue can be met.

Description

Technical Field

[0001] The present application relates to the technical field of medical equipment, and more specifically, to a multi-angle rotary cutting mechanism of a minimally invasive planing operating handle. Background Art

[0002] The current minimally invasive intracavitary planing operating handle often cannot provide good convenience and accuracy when treating tissue in a single cavity wall area and resecting tissues in multiple areas and angles in the cavity. The main and significant problems are as follows: when resecting a single cavity wall lesion tissue, the doctor can perform the surgical resection according to his own habits and grip before the operation. When the scalpel needs to be readjusted on the cavity wall, the doctor needs to readjust the grip or his own wrist for surgical resection, which seriously affects the efficiency of the operation and will cause damage to the doctor's wrist in the long run, which cannot meet its convenience. When resecting tissues in multiple areas and angles of the cavity wall, it is difficult to find a suitable grip for the handle body when adjusting the grip of the handle body or the doctor's own wrist for surgical resection treatment, which will result in incomplete surgical treatment or inability to completely eradicate the lesion tissue, and it is difficult to achieve accuracy. When resecting cavity wall tissue, for curved cavity wall tissue, if the blade angle cannot be adjusted, it is easy to cause the operation to be unable to proceed. Therefore, the minimally invasive planing operating handle in the prior art has the problem of not being able to perform multi-angle rotary cutting and cannot meet surgical needs.

[0003] In view of the above problems, the existing technology needs to be improved urgently. Utility Model Content

[0004] The purpose of the present application is to provide a multi-angle rotary cutting mechanism for a minimally invasive planing operating handle, which has the function of freely rotating around the axial direction of the scalpel, which is convenient for the doctor to hold the handle for surgical resection treatment. For curved wall cavity tissue, the scalpel's blade angle can be freely adjusted to meet the surgical requirements for complete eradication of the lesion tissue.

[0005] In the first aspect, the present application provides a multi-angle rotary cutting mechanism of a minimally invasive planing operating handle, and the technical solution is as follows:

[0006] The multi-angle rotary cutting mechanism of the minimally invasive planing operating handle comprises at least: a scalpel, a self-locking mechanism and a dial mechanism;

[0007] The dial mechanism is rotatably arranged on the handle housing, and at least comprises a rotating dial and a rotating bevel gear connected to the rotating dial;

[0008] One end of the self-locking mechanism is coaxially connected to the scalpel, and the other end includes a rotating bevel tooth meshing with the rotating bevel tooth; the rotating bevel tooth is arranged around the axial direction of the self-locking mechanism, so that the self-locking mechanism rotates around the axial direction under the drive of the dial mechanism, thereby driving the scalpel to rotate around the axial direction.

[0009] The multi-angle rotary cutting mechanism of a minimally invasive planing operating handle provided by the present application at least includes a scalpel, a self-locking mechanism and a dial mechanism. The dial mechanism is rotatably arranged on the handle shell, and at least includes a rotating dial and a rotating bevel gear connected to the rotating dial, so that a person can hold the handle shell by hand, turn the rotating dial with fingers, and drive the rotating bevel gear to rotate; one end of the self-locking mechanism is coaxially connected to the scalpel, and the other end includes a rotating oblique gear meshing with the rotating bevel gear. Therefore, when the rotating bevel gear rotates, it will drive the rotating bevel gear to rotate, thereby rotating the self-locking mechanism and the scalpel. The rotating bevel gear is arranged around the axial direction of the self-locking mechanism. Therefore, the self-locking mechanism and the scalpel can rotate freely around the axial direction under the drive of the dial mechanism, which is beneficial for the doctor to hold the handle for surgical resection treatment. For curved wall cavity tissue, the surgical requirements for complete eradication of lesion tissue can be met by freely adjusting the blade angle of the scalpel.

[0010] Furthermore, the dial mechanism also includes a rotating shaft, which is rotatably connected to the handle housing, one end of which extends into the interior of the handle housing and is connected to the rotating bevel gear, and the other end protrudes from the surface of the handle housing and is connected to the rotating dial.

[0011] The present application provides a multi-angle rotary cutting mechanism for a minimally invasive planing operating handle, wherein the dial mechanism also includes a rotating shaft, which is rotatably connected to the handle shell to facilitate the movement of the rotating shaft, one end of the rotating shaft extends into the interior of the handle shell and is connected to the rotating bevel gear, and the other end protrudes from the surface of the handle shell and is connected to the rotating dial. By setting the rotating shaft, it is convenient for a person to manually turn the rotating dial located outside the handle shell, thereby driving the rotating bevel gear located inside the handle shell to rotate smoothly.

[0012] Furthermore, a threaded hole is provided on the rotating dial, and the rotating shaft is connected to the rotating dial through the threaded hole.

[0013] The present application provides a multi-angle peeling mechanism for a minimally invasive planing operating handle. In order to facilitate the connection between a rotating dial and a rotating shaft, a threaded hole is provided on the rotating dial, and the rotating shaft is tightened and connected to the rotating dial through the threaded hole. This connection structure can not only stably connect the rotating dial and the rotating shaft, but also facilitate later maintenance and disassembly.

[0014] Furthermore, the setting direction of the dial mechanism is perpendicular to the axial direction of the self-locking mechanism, and the plane where the rotation direction of the rotating bevel gear is located is perpendicular to the plane where the rotation direction of the rotating helical gear is located.

[0015] The present application provides a multi-angle rotary cutting mechanism for a minimally invasive planing operating handle. In order to facilitate the human hand to hold the handle, the fingers can easily turn the rotating dial. The setting direction of the dial mechanism is perpendicular to the setting direction of the self-locking mechanism, that is, the axial direction of the rotating shaft is perpendicular to the axial direction of the self-locking mechanism, and the plane where the rotation direction of the rotating dial and the rotating bevel teeth are located is perpendicular to the plane where the rotation direction of the rotating helical teeth is located. Therefore, the rotating helical teeth can convert the rotation direction of the rotating bevel teeth into rotation around the axial direction of the self-locking mechanism, thereby driving the scalpel to rotate around the axial direction, thereby achieving the effect of freely adjusting the blade angle of the scalpel.

[0016] Furthermore, the diameter of the rotating bevel gear is smaller than the diameter of the rotating helical gear, and the number of racks on the rotating bevel gear is smaller than the number of racks on the rotating helical gear.

[0017] Furthermore, the self-locking mechanism includes a fixed sleeve and a self-locking outer sleeve sleeved on the fixed sleeve, the fixed sleeve is sleeved with a spring, the spring is connected to the self-locking outer sleeve, and the self-locking outer sleeve drives the fixed sleeve to reciprocate along the axial direction of the scalpel by compressing or relaxing the spring.

[0018] Furthermore, the fixed sleeve is provided with a through cavity, and the handle of the scalpel is fixed in the cavity.

[0019] Furthermore, a plastic part is provided on the knife handle, and the plastic part is arranged in the cavity and contacts with the inner wall of the fixed sleeve.

[0020] Furthermore, a self-locking steel ball and a first ball groove for placing the self-locking steel ball are provided at the connection position between the fixed sleeve and the tool handle.

[0021] Furthermore, a second bead groove is provided on the knife handle, the position of the second bead groove corresponds to the position of the first bead groove, and cooperates with the first bead groove to limit the self-locking steel ball, so that the knife handle is fixed in the cavity of the fixed sleeve through the self-locking steel ball.

[0022] Beneficial effect: The multi-angle rotary cutting mechanism of a minimally invasive planing operating handle provided by the present application at least includes a scalpel, a self-locking mechanism and a dial mechanism. The dial mechanism is rotatably arranged on the handle shell, and at least includes a rotating dial and a rotating bevel tooth connected to the rotating dial, so that a person can hold the handle shell by hand, turn the rotating dial with fingers, and drive the rotating bevel tooth to rotate; one end of the self-locking mechanism is coaxially connected to the scalpel, and the other end includes a rotating oblique tooth meshing with the rotating bevel tooth. Therefore, when the rotating bevel tooth rotates, it will drive the rotating bevel tooth to rotate, thereby rotating the self-locking mechanism and the scalpel. The rotating bevel tooth is arranged around the axial direction of the self-locking mechanism. Therefore, the self-locking mechanism and the scalpel can rotate freely around the axial direction driven by the dial mechanism, which is beneficial for the doctor to hold the handle for surgical resection treatment. For curved wall cavity tissue, the surgical requirements for complete eradication of lesion tissue can be met by freely adjusting the blade angle of the scalpel. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of a multi-angle peeling mechanism of a minimally invasive planing operating handle provided in the present application.

[0024] Figure 2 A cross-sectional view of the connection between the dial mechanism and the self-locking mechanism provided in this application.

[0025] Figure 3 A three-dimensional diagram of the connection between the dial mechanism and the self-locking mechanism provided in this application.

[0026] Figure 4 A cross-sectional view of a multi-angle rotary cutting mechanism of a minimally invasive planing operating handle provided in the present application.

[0027] Figure 5 Another structural diagram of the multi-angle rotary cutting mechanism of the minimally invasive planing operating handle provided in this application.

[0028] Figure 6 A combination diagram of the self-locking steel ball and the second ball groove provided for this application.

[0029] In the figure: 1. handle housing; 2. dial mechanism; 3. self-locking mechanism; 4. scalpel; 21. rotating shaft; 22. rotating dial; 23. rotating bevel gear; 24. thread; 25. threaded hole; 31. self-locking outer sleeve; 32. fixed sleeve; 33. self-locking steel ball; 34. spring; 35. rotating bevel gear; 321. first bead groove; 322. cavity; 41. knife handle; 411. cutting edge; 42. plastic part; 421. second bead groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application usually described and marked in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] The current minimally invasive intracavitary planing operation handles treat tissue in a single cavity wall area, and are often not very convenient and accurate when removing tissue at multiple angles in the cavity. In order to solve this problem, the present application proposes a multi-angle rotary cutting mechanism for a minimally invasive planing operation handle.

[0033] Please refer to Figures 1 to 6 , a multi-angle rotary cutting mechanism of a minimally invasive planing operating handle, comprising at least: a scalpel 4, a self-locking mechanism 3 and a dial mechanism 2;

[0034] The dial mechanism 2 is rotatably disposed on the handle housing 1, and at least comprises a rotating dial 22 and a rotating bevel gear 23 connected to the rotating dial 22;

[0035] One end of the self-locking mechanism 3 is coaxially connected to the scalpel 4, and the other end includes a rotating bevel tooth 35 meshing with the rotating bevel tooth 23; the rotating bevel tooth 35 is arranged around the axial direction of the self-locking mechanism 3, so that the self-locking mechanism 3 rotates around the axial direction under the drive of the dial mechanism 2, thereby driving the scalpel 4 to rotate around the axial direction.

[0036] In practical applications, please refer to Figure 1 to Figure 2The multi-angle rotary cutting mechanism of the minimally invasive planing operating handle at least includes a scalpel 4, a self-locking mechanism 3 and a dial mechanism 2. The scalpel 4 includes a handle 41 connected to the self-locking mechanism 3, and a cutting edge 411 for removing the lesion tissue. The scalpel 4 is an extended tubular structure as a whole, which is convenient for entering the cavity and convenient for rotating angles to remove the lesion tissue from multiple angles. In actual application, one end of the self-locking mechanism 3 is coaxially connected to the scalpel 4. Such an arrangement enables the self-locking mechanism 3 to drive the scalpel 4 to rotate together when rotating around the axis. The dial mechanism 2 is arranged on the handle housing 1. When a person holds the handle housing 1, the finger can easily turn the dial mechanism 2 to rotate. The dial mechanism includes a rotating dial 22 and a rotating bevel gear 23 connected to the rotating dial 22. The rotating dial 22 is disc-shaped and has raised toggle parts evenly distributed around it. When a person touches the toggle part and rotates it, the rotating dial 22 can be easily pushed to rotate, thereby driving the rotating bevel gear 23 connected to the rotating dial 22 to rotate. In actual application, please refer to Figure 3 The rotating bevel gear 23 is in the shape of a disk, and the edge is evenly distributed with a sharp cone-shaped rack, and the sharp cone-shaped rack is convenient for meshing and connecting the rotating bevel gear 35 on the self-locking mechanism 3. In practical applications, the rotating bevel gear 35 is arranged around the axial direction of the self-locking mechanism 3, that is, the rotating bevel gear 35 rotates around the axial direction of the self-locking mechanism 3 when the rotating bevel gear 35 is in operation. The rotating bevel gear 35 is in the shape of a disk, and the edge is evenly distributed with a rack. The rack gap of the rotating bevel gear 35 can be meshed and connected with the sharp cone-shaped rack of the rotating bevel gear 23. When the rotating bevel gear 23 rotates and runs, the sharp cone-shaped rack bites into the rack of the rotating bevel gear 35, driving the rotating bevel gear 35 to rotate around the axial direction, that is, driving the self-locking mechanism 3 and the scalpel 4 coaxially connected to the self-locking mechanism 3 to rotate around the axial direction, thereby achieving that the human hand holds the handle and the finger turns the rotating dial 22, which can drive the cutting edge 411 of the scalpel 4 to rotate flexibly at multiple angles. The doctor does not need to turn his wrist or handle, and can also freely adjust the position of the cutting edge 411 for surgery, which is very convenient.

[0037] Furthermore, the dial mechanism 2 also includes a rotating shaft 21, which is rotatably connected to the handle housing 1, one end of which extends into the interior of the handle housing 1 and is connected to the rotating bevel gear 23, and the other end protrudes from the surface of the handle housing 1 and is connected to the rotating dial 22.

[0038] Among them, in actual application, the dial mechanism 2 also includes a rotating shaft 21, which is rotatably connected to the handle housing 1. The rotating shaft 21 is cylindrical and vertically penetrates the handle housing 1. The surface arc contacts the handle housing 1, which is more conducive to the rotation of the rotating shaft 21. Among them, one end of the rotating shaft 21 extends into the interior of the handle housing 1 and is connected to the rotating bevel gear 23. The rotating bevel gear 23 is arranged inside the handle housing 1, which can better drive the rotating bevel gear 35 meshing with it to rotate, and avoid the gear structure being exposed outside the handle housing 1 and easily damaged. The other end of the rotating shaft 21 protrudes from the surface of the handle housing 1 and is connected to the rotating dial 22. The rotating shaft 21 fixes the rotating dial 22 outside the handle housing 1, which can facilitate the fingers to easily turn the rotating dial 22 to rotate when the human hand holds the handle.

[0039] Among them, in actual application, the rotating dial 22 and the rotating bevel gear 23 are connected by the rotating shaft 21, which can not only achieve the effect of transmission rotation, ensure that the human hand can easily adjust the rotation direction and rotation angle of the rotating dial 22, but also ensure that the rotating bevel gear 23 can operate inside the shell to avoid damage.

[0040] Furthermore, a threaded hole 25 is provided on the rotating dial 22 , and the rotating shaft 21 is connected to the rotating dial 22 through the threaded hole 25 .

[0041] In practical applications, the rotating dial 22 is provided with a threaded hole 25. In some preferred embodiments, the threaded hole 25 is provided at the center of the rotating dial 22. After the rotating shaft 21 is connected to the rotating dial 22 through the threaded hole 25, the rotating dial 22 can rotate evenly around the rotating shaft 21 at the center of the circle, so that the connection structure of the rotating dial 22 is more stable. In order to facilitate the connection between the rotating shaft 21 and the threaded hole 25, a thread 24 matching the threaded hole 25 can be provided on the surface of one end of the rotating shaft 21 connected to the rotating dial 22. The rotating shaft 21 is inserted into the threaded hole 25 and is tightened and fixed by the thread 24, so as to ensure that the rotating shaft 21 and the rotating dial 22 can be stably fixed, and the problem that the rotating shaft 21 does not rotate with the finger when the rotating dial 22 is turned will not occur. The thread 24 is provided to be tightened with the threaded hole 25. When the subsequent maintenance and disassembly is required, the rotating shaft 21 can be screwed out of the threaded hole 25. This structure makes the subsequent maintenance and disassembly more convenient.

[0042] Furthermore, the setting direction of the dial mechanism 2 is perpendicular to the axial direction of the self-locking mechanism 3 , and the plane where the rotating bevel gear 23 is located is perpendicular to the plane where the rotating helical gear 35 is located.

[0043] Among them, in actual application, since the human hand holds the handle along the axial direction of the scalpel 4 and the self-locking direction, in order to facilitate the finger adjustment of the dial mechanism 2, the setting direction of the dial mechanism 2 is preferably perpendicular to the axial direction of the self-locking mechanism 3, that is, the plane where the rotating dial 22 and the rotating bevel gear 23 are located is perpendicular to the plane where the rotating direction of the rotating bevel gear 35 is located. The pointed conical rack of the rotating bevel gear 23 is engaged between the racks of the rotating bevel gear 35 from the side of the rotating bevel gear 35, driving the rotating bevel gear 35 to rotate, and the rotating bevel gear 35 can convert the rotation direction of the rotating bevel gear 23 into rotation around the axial direction of the self-locking mechanism 3, thereby facilitating the flexible rotation of the cutting edge 411 of the scalpel 4 around the axial direction of the scalpel 4.

[0044] Furthermore, the diameter of the rotating bevel gear 23 is smaller than the diameter of the rotating helical gear 35 , and the number of racks on the rotating bevel gear 23 is smaller than the number of racks on the rotating helical gear 35 .

[0045] Among them, in actual application, due to the narrow surgical cavity position of the minimally invasive planing operating handle, it is necessary to ensure the accuracy of the manual adjustment of the rotation angle of the blade 411. In order to solve this problem, the diameter of the rotating bevel gear 23 can be set to be smaller than the diameter of the rotating bevel gear 35, and the number of racks on the rotating bevel gear 23 is smaller than the number of racks on the rotating bevel gear 35, so that when the rotating bevel gear 23 drives the rotating bevel gear 35 to rotate, the rotating bevel gear 23 needs to rotate a larger angle to drive the rotating bevel gear 35 to rotate a smaller angle. For example, the rotating bevel gear 23 rotates 180° and the rotating bevel gear 35 rotates 30°. The specific rotation angle depends on the actual situation. This structure can ensure that when the finger uses a large amplitude to dial, it can also accurately control the blade to rotate a smaller angle to align with the lesion tissue.

[0046] Furthermore, the self-locking mechanism 3 includes a fixed sleeve 32 and a self-locking outer sleeve 31 sleeved on the fixed sleeve 32. A spring 34 is sleeved on the fixed sleeve 32. The spring 34 is connected to the self-locking outer sleeve 31. The self-locking outer sleeve 31 compresses or relaxes the spring 34 to drive the fixed sleeve 32 to reciprocate along the axial direction of the scalpel 4.

[0047] In practical applications, please refer to Figure 4The self-locking mechanism 3 includes a fixed sleeve 32 and a self-locking outer sleeve 31 sleeved on the fixed sleeve 32. There is a gap between the self-locking outer sleeve 31 and the fixed sleeve 32, and the self-locking outer sleeve 31 is provided with an inclined surface convergent to the fixed sleeve 32 on the side close to the scalpel 4, and the extended end of the inclined surface is fixed on the fixed sleeve 32, so that the self-locking outer sleeve 31 and the fixed sleeve 32 are stably connected while a gap can be left between the two. The gap is used to set a spring 34. By pressing the self-locking outer sleeve 31 with a finger, the spring 34 can be compressed or relaxed, so that the fixed sleeve 32 reciprocates along the axial direction of the scalpel 4 under the action of the elastic force of the spring 34, driving the scalpel 4 to extend or retract.

[0048] Furthermore, the fixed sleeve 32 is provided with a through cavity 322 , and the handle 41 of the scalpel 4 is fixed in the cavity 322 .

[0049] In practical applications, please refer to Figure 3 The fixed sleeve 32 is provided with a through cavity 322 , and the handle 41 of the scalpel 4 is fixed in the cavity 322 , thereby realizing a coaxial connection with the self-locking mechanism 3 .

[0050] Furthermore, a plastic part 42 is disposed on the knife handle 41 . The plastic part 42 is disposed in the cavity 322 and contacts the inner wall of the fixed sleeve 32 .

[0051] Among them, in actual application, a plastic part 42 is provided on the knife handle 41, and the plastic part 42 is sleeved on the surface of the knife handle 41, covering the knife handle 41, and forming an integrated structure with the knife handle 41. The plastic part 42 is arranged in the cavity 322 and contacts with the inner wall of the fixed sleeve 32, and has a large friction force. After being fixed into the cavity 322, it is not easy to fall off.

[0052] Furthermore, a self-locking steel ball 33 and a first ball groove 321 for accommodating the self-locking steel ball 33 are provided at the connection position between the fixed sleeve 32 and the knife handle 41 .

[0053] In practical applications, please refer to Figure 5 to Figure 6 In order to ensure that the blade of the scalpel 4 can reciprocate in the axial direction, a self-locking steel ball 33 is provided at the connection position between the fixed sleeve 32 and the handle 41, and a first ball groove 321 for placing the self-locking steel ball 33. In some preferred embodiments, the self-locking steel balls 33 can be evenly distributed around the inner wall of the fixed sleeve 32. The specific number can be determined according to the actual weight of the scalpel 4. The heavier the scalpel 4 is, the more self-locking steel balls 33 are required. Among them, 2 / 3 of the volume of each self-locking steel ball 33 is movably fixed in the first ball groove 321, and the other 1 / 3 of the volume is in contact with the handle 41, which is used to limit the displacement of the handle 41 and fix the handle 41 in the fixed sleeve 32.

[0054] Furthermore, a second bead groove 421 is provided on the knife handle 41 , and the position of the second bead groove 421 corresponds to the position of the first bead groove 321 , and cooperates with the first bead groove 321 to limit the self-locking steel ball 33 , thereby fixing the knife handle 41 in the cavity 322 of the fixed sleeve 32 through the self-locking steel ball 33 .

[0055] Among them, in actual application, in order to better limit the displacement of the self-locking steel ball 33 and ensure a stable connection between the knife handle 41 and the fixed sleeve 32, a second bead groove 421 can be provided on the knife handle 41. The position of the second bead groove 421 corresponds to the position of the first bead groove 321, and cooperates with the first bead groove 321 to limit the self-locking steel ball 33. The self-locking steel ball 33 is fixed in the groove cavity of the first bead groove 321 and the second bead groove 421 and cannot roll, thereby realizing a locking connection between the knife handle 41 and the fixed sleeve 32. When human power presses the self-locking outer sleeve 31 outside the fixed sleeve 32 toward the dial mechanism 2, the spring 34 contracts, and the spring 34 pushes the fixed sleeve 32 to extend relative to the self-locking outer sleeve 31, locks the self-locking steel ball 33 with the second bead groove 421, fixes the knife handle 41 and the fixed sleeve 32, and realizes the coaxial fixed connection between the scalpel 4 and the self-locking mechanism 3; when human power pushes the self-locking outer sleeve 31 outside the fixed sleeve 32 toward the cutting edge 411, the spring 34 stretches, and the spring 34 pulls the fixed sleeve 32 back relative to the self-locking outer sleeve 31, and the self-locking steel ball 33 disengages from the second bead groove 421, realizing the separation of the knife handle 41 and the fixed sleeve 32.

[0056] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of protection of the present application.

Claims

1. A multi-angle peeling mechanism for a minimally invasive planing operating handle, characterized in that: It at least comprises: a scalpel (4), a self-locking mechanism (3) and a dial mechanism (2); The dial mechanism (2) is rotatably arranged on the handle housing (1), and at least comprises a rotating dial (22) and a rotating bevel gear (23) connected to the rotating dial (22); One end of the self-locking mechanism (3) is coaxially connected to the scalpel (4), and the other end comprises a rotating bevel tooth (35) meshingly connected to the rotating bevel tooth (23); the rotating bevel tooth (35) is arranged around the axial direction of the self-locking mechanism (3), so that the self-locking mechanism (3) is driven by the dial mechanism (2) to rotate around the axial direction, thereby driving the scalpel (4) to rotate around the axial direction.

2. The multi-angle peeling mechanism of the minimally invasive planing operating handle according to claim 1 is characterized in that: The dial mechanism (2) further comprises a rotating shaft (21), which is rotatably connected to the handle housing (1), one end of which extends into the interior of the handle housing (1) and is connected to the rotating bevel gear (23), and one end of which protrudes from the surface of the handle housing (1) and is connected to the rotating dial (22).

3. The multi-angle peeling mechanism of the minimally invasive planing operating handle according to claim 2 is characterized in that: The rotating dial (22) is provided with a threaded hole, and the rotating shaft (21) is connected to the rotating dial (22) through the threaded hole.

4. The multi-angle peeling mechanism of the minimally invasive planing operating handle according to claim 3 is characterized in that: The setting direction of the dial mechanism (2) is perpendicular to the axial direction of the self-locking mechanism (3), and the plane where the rotation direction of the rotating bevel teeth (23) is located is perpendicular to the plane where the rotation direction of the rotating helical teeth (35) is located.

5. The multi-angle peeling mechanism of the minimally invasive planing operating handle according to claim 1, characterized in that: The diameter of the rotating bevel gear (23) is smaller than the diameter of the rotating helical gear (35), and the number of racks on the rotating bevel gear (23) is smaller than the number of racks on the rotating helical gear (35).

6. The multi-angle peeling mechanism of the minimally invasive planing operating handle according to claim 1, characterized in that: The self-locking mechanism (3) comprises a fixed sleeve (32) and a self-locking outer sleeve (31) sleeved on the fixed sleeve (32); a spring (34) is sleeved on the fixed sleeve (32); the spring (34) is connected to the self-locking outer sleeve (31); the self-locking outer sleeve (31) compresses or relaxes the spring (34) to drive the fixed sleeve (32) to reciprocate along the axial direction of the scalpel (4).

7. The multi-angle peeling mechanism of the minimally invasive planing operating handle according to claim 6, characterized in that: The fixed sleeve (32) is provided with a through cavity (322), and the handle (41) of the surgical knife (4) is fixed in the cavity (322).

8. The multi-angle peeling mechanism of the minimally invasive planing operating handle according to claim 7, characterized in that: The knife handle (41) is provided with a plastic part (42), and the plastic part (42) is arranged in the cavity (322) and contacts the inner wall of the fixed sleeve (32).

9. The multi-angle peeling mechanism of the minimally invasive planing operating handle according to claim 7, characterized in that: A self-locking steel ball (33) and a first ball groove (321) for accommodating the self-locking steel ball (33) are provided at the connection position between the fixed sleeve (32) and the knife handle (41).

10. The multi-angle peeling mechanism of the minimally invasive planing operating handle according to claim 9, characterized in that: The knife handle (41) is provided with a second bead groove (421), the position of the second bead groove (421) corresponds to the position of the first bead groove (321), and cooperates with the first bead groove (321) to limit the self-locking steel ball (33), so that the knife handle (41) is fixed in the cavity (322) of the fixed sleeve (32) through the self-locking steel ball (33).

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