Novel structure for preventing cutting assembly from shaking

Abstract

The invention discloses a novel structure for preventing a cutting assembly from shaking. The novel structure comprises a driving assembly, the cutting assembly rotationally connected with the driving assembly and a damping structure arranged on the driving assembly. The damping structure comprises an inserting groove formed in the driving positioning rod, a limiting piece installed in the inserting groove and a rough surface arranged on the outer surface of the first driving rod, the limiting piece makes contact with the rough surface to generate constant friction damping, and stable damping is provided after the cutting assembly and the driving assembly rotate to preset positions so as to restrain shaking and ensure accurate positioning; a first driving rod and a second driving rod are arranged in the driving assembly and are respectively meshed with a first rotating part and a second rotating part of the cutting assembly through connecting rods to realize multi-angle adjustment; on the premise that complex parts are not added, friction formed by the rough texture and the silica gel limiting piece is utilized, the positioning and resetting reliability of the cutting assembly is remarkably improved, the manufacturing process is simplified, the cost is reduced, and the safety and accuracy of surgical operation of the endoscope anastomat are enhanced.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a novel anti-shaking structure for cut-resistant components. Background Technology

[0002] In the field of modern minimally invasive surgery, laparoscopic staplers have become a core instrument for achieving tissue cutting and suturing. These devices typically consist of a gun body and a detachable laparoscopic assembly, which is further divided into a drive section and a cutting-suturing section. The drive section includes a firing mechanism and a cutting assembly drive mechanism: the former drives the cutting-suturing section to clamp, cut, and suture the target tissue; the latter allows the cutting-suturing section to deflect laterally at the front end of the gun body, providing the surgeon with multi-angle manipulation capabilities.

[0003] Existing laparoscopic anastomotic devices generally have a clearance at the connection between the cutting component drive mechanism and the gun barrel. During rotation or locking of the cutting component, this clearance can easily cause the cutting-suture head to wobble, resulting in insufficient angular positioning accuracy and reduced reset reliability of the cutting component. Ultimately, this may weaken the suture quality and prolong the operation time. Given the stringent requirements of minimally invasive surgery for suture precision and efficiency, there is an urgent need for an improved structure that can significantly suppress cutting component wobble and improve positioning stability without increasing overall size or assembly complexity. Summary of the Invention

[0004] The purpose of this invention is to provide a novel anti-cutting component swaying structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel anti-shaking structure for a cutting component, comprising a cutting component and a drive component rotatably connected thereto, wherein the drive component is provided with a damping structure for providing a stable holding force to prevent the cutting component from shaking after the cutting component and the drive component have rotated to their positions.

[0006] Preferably, the cutting component and the driving component are provided with a matching meshing group at their opposite ends. The meshing group is provided with a first rotating part and a second rotating part on both sides. The first rotating part and the second rotating part are both provided on the cutting component. The driving component drives the first rotating part or the second rotating part to make the cutting component and the driving component rotate relative to each other.

[0007] Preferably, the driving assembly includes: a driving positioning rod, which is connected to the cutting assembly via an engagement group and has a first movable part and a second movable part along its length; a first driving rod and a second driving rod, which are respectively disposed in the first movable part and the second movable part; a connecting rod is provided on both the first rotating part and the second rotating part, and the connecting rod is respectively connected to the first driving rod and the second driving rod.

[0008] Preferably, the damping structure includes: a slot disposed on the drive positioning rod; a limiting member disposed in the slot; and a rough surface disposed on the contact surface between the first drive rod and the limiting member, wherein the limiting member and the rough surface are in contact with each other and generate frictional damping force during relative movement.

[0009] Preferably, the rough surface is formed by a knurling process.

[0010] Preferably, the limiting member is made of silicone.

[0011] Compared with the prior art, the beneficial effects of the present invention are: This invention creates a rough texture on the surface of the first drive rod and, in conjunction with a limiting component, continuously applies moderate frictional damping to the body of the first drive rod. This effectively suppresses the shaking of the cutting assembly during rotation and rest, improving upon the shortcomings of existing laparoscopic anastomotic devices in terms of inaccurate positioning and unstable repositioning. The stable frictional force ensures that the cutting assembly reliably locks at the target angle after stopping, enhancing repositioning reliability. This improved structure is simple, can be achieved using conventional processing techniques, has low manufacturing costs, enhances instrument operation precision and clinical safety, and provides a solid guarantee for precise intraoperative suturing. Attached Figure Description

[0012] Figure 1 This is the front view of the present invention; Figure 2 This is an enlarged view of point A in the present invention; Figure 3 This is a schematic diagram of the internal structure of the drive positioning rod of the present invention; Figure 4 This is a schematic diagram of the internal structure of the drive positioning rod as seen from the end of the drive positioning rod according to the present invention; Figure 5 This is a schematic diagram of the structure of the present invention after removing the drive positioning rod; Figure 6 This is an enlarged view of section B of the present invention; Figure 7 This is an enlarged view of the damping structure portion of the present invention.

[0013] In the figure: 1. Cutting assembly; 2. Drive assembly; 201. Drive positioning rod; 202. First movable part; 203. Second movable part; 204. First drive rod; 205. Second drive rod; 3. Damping structure; 301. Slot; 302. Limiting member; 303. Rough surface; 4. Engaging assembly; 5. First rotating part; 6. Second rotating part. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0016] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integrated connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a number" means two or more, unless otherwise explicitly specified.

[0018] Example Please see Figure 1-7 As shown, a novel anti-shaking structure for a cutting component includes a cutting component 1 and a drive component 2 rotatably connected thereto. The drive component 2 is provided with a damping structure 3, which provides a stable holding force to prevent the cutting component 1 from shaking after the cutting component 1 and the drive component 2 have rotated to their positions.

[0019] The cutting assembly 1 and the driving assembly 2 are provided with matching meshing groups 4 at their opposite ends. A first rotating part 5 and a second rotating part 6 are provided on both sides of the meshing group 4, and both the first rotating part 5 and the second rotating part 6 are located on the cutting assembly 1. The driving assembly 2 drives the first rotating part 5 or the second rotating part 6 to cause the cutting assembly 1 and the driving assembly 2 to rotate relative to each other. In this embodiment, the meshing group 4 includes two meshing teeth, one located on the driving positioning rod 201 and the other on the cutting assembly 1. The structural layout of the meshing group 4, the first rotating part 5, and the second rotating part 6 is as follows: Figure 2 As shown, specifically, the meshing group 4 is located at the center position in the figure, and the first rotating part 5 and the second rotating part 6 are symmetrically arranged on both sides of the meshing group 4. It should be further noted that in other embodiments, the meshing group 4 can also be configured as two, and the second meshing group can be arranged at the corresponding position opposite to the first meshing group to achieve a more stable transmission engagement.

[0020] The drive assembly 2 includes components such as a drive positioning rod 201, a first drive rod 204, and a second drive rod 205. The drive positioning rod 201 is connected to the cutting assembly 1 via a meshing assembly 4, and has a first movable part 202 and a second movable part 203 along its length. The first drive rod 204 and the second drive rod 205 are respectively disposed in the first movable part 202 and the second movable part 203. The ends of the first drive rod 204 and the second drive rod 205 are respectively connected to the first rotating part 5 and the second rotating part 6 via connecting rods. In this embodiment, the first movable part 202 and the second movable part 203 are specifically elongated cavities disposed within the drive positioning rod 201, used to accommodate and guide the reciprocating motion of the first drive rod 204 and the second drive rod 205.

[0021] like Figure 4 and Figure 5 As shown, the first drive rod 204 and the second drive rod 205 are respectively disposed in the first movable part 202 and the second movable part 203 of the corresponding cutting assembly 1, and can slide along the length direction of the drive positioning rod 201. When the first drive rod 204 is pushed forward, the cutting assembly 1 rotates accordingly, and the second drive rod 205 retracts accordingly.

[0022] The damping structure 3 includes a slot 301, a limiting member 302, and a rough surface 303. The slot 301 is disposed on the drive positioning rod 201, the limiting member 302 is disposed in the slot 301, and the rough surface 303 is arranged on the contact surface between the first drive rod 204 and the limiting member 302. The limiting member 302 and the rough surface 303 come into contact with each other and generate frictional damping force during relative rotation.

[0023] In this embodiment, the rough surface 303 is preferably formed by knurling on the surface of the first drive rod 204, which is beneficial to generate stable contact friction with the limiting member 302. The limiting member 302 is made of silicone material, which has certain elasticity and damping properties. It can apply continuous and appropriate damping to the first drive rod 204 without affecting the movement of the structure, thereby effectively suppressing the shaking of the cutting assembly 1 during rotation and improving the positioning accuracy.

[0024] The working principle of this invention is as follows: During use, the first drive rod 204 can be driven along the side wall of the first movable part 202 by a manual or electric drive mechanism, thereby driving the cutting assembly 1 to rotate in a preset direction. During this rotation, the first drive rod 204 needs to overcome the frictional damping generated between its rough surface 303 and the limiting member 302. When the cutting assembly 1 rotates to the target position and stops, the continuous frictional force of the limiting member 302 on the rough surface 303 will provide a stable limiting effect on the cutting assembly 1, thereby effectively restricting its free swing and improving the positioning accuracy and locking reliability of the cutting assembly 1 after it stops.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel anti-cutting component swaying structure, characterized in that: It includes a cutting component and a drive component rotatably connected thereto. The drive component is provided with a damping structure to provide a stable holding force to prevent the cutting component from shaking after the cutting component and the drive component have rotated into position.

2. The novel anti-cutting component swaying structure according to claim 1, characterized in that: The cutting component and the driving component are provided with a matching meshing group at their opposite ends. The meshing group is provided with a first rotating part and a second rotating part on both sides. The first rotating part and the second rotating part are both provided on the cutting component. The driving component drives the first rotating part or the second rotating part to make the cutting component and the driving component rotate relative to each other.

3. The novel anti-cutting component swaying structure according to claim 2, characterized in that: The driving assembly includes: a driving positioning rod, which is connected to the cutting assembly via an engagement group and has a first movable part and a second movable part along its length; a first driving rod and a second driving rod, which are respectively disposed in the first movable part and the second movable part; a connecting rod is provided on both the first rotating part and the second rotating part, and is connected to the first driving rod and the second driving rod respectively through the connecting rod.

4. The novel anti-cutting component swaying structure according to claim 3, characterized in that: The damping structure includes: a slot disposed on the drive positioning rod; a limiting member disposed in the slot; and a rough surface disposed on the contact surface between the first drive rod and the limiting member, wherein the limiting member and the rough surface are in contact with each other and generate frictional damping force during relative movement.

5. The novel anti-cutting component swaying structure according to claim 4, characterized in that: The rough surface is formed by a knurling process.

6. A novel anti-cutting component swaying structure according to claim 4 or 5, characterized in that: The limiting component is made of silicone.

Images