Multi-degree-of-freedom linear cutting closer

Abstract

The invention relates to the technical field of medical instruments, in particular to a multi-degree-of-freedom linear cutting closer which comprises a handle, the front end of the handle is fixedly connected with a connecting rod, an executing mechanism is arranged at the front end of the connecting rod, and the executing mechanism is connected with the connecting rod through a first connector. The first connector is used for adjusting the angle between the execution structure and the connecting rod. Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects that a degree of freedom is additionally added at the tip end of the operating rod, the bending corner is smooth, so that the linear cutting closer can reach a part needing to be operated more smoothly, and an executing mechanism, namely a nail box, is more free and accurate when passing through a blood vessel and a trachea; operation efficiency and safety are improved, and meanwhile the learning curve of a surgeon can be remarkably shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a multi-degree-of-freedom linear cutting and closing device. Background Art

[0002] In recent years, with the deepening of the concept of minimally invasive surgery, laparoscopic surgical technology has shown breakthrough development. Laparoscopic surgery has the advantages of small incisions and fast patient recovery, and is widely used in clinical practice. Further improving the stretchability, flexibility and intuitive control of the instrument and reducing its weight are the future development trends of laparoscopic surgery. As an important tool in laparoscopic surgery, the linear cutting closure device has evolved from being only used for open surgery and manual operation to being suitable for laparoscopic surgery and relying on electric drive, but these evolutions cannot meet all clinical needs of the surgery. The working principle of the linear cutting closure device is similar to that of a stapler, firing two or several rows of parallel and offset staples into the tissue. Dr. Hültl, the inventor of the stapler, modified the anvil so that the staples could be squeezed into a B-shape, which could not only firmly bind the main blood vessels, but also ensure blood supply and nutrition to the stapled tissue and the cutting edge, as small blood vessels could pass through the gaps in the "B"-shaped staples. The multiple rows of staples were designed in a staggered arrangement, and the trajectory of the staples was like two parallel dotted lines, locking the gaps with each other and ensuring that all blood vessels passed through the cut were ligated, to avoid exudation at the anastomosis.

[0003] There are the following defects: the existing linear cutting closure devices are all long-axis-straight rod type, with the puncture hole on the chest wall or abdominal wall as the pivot point. Although the top nail box can be rotated, the overall flexibility is poor and the chopstick effect is obvious. The surgical space in the thoracic cavity is relatively small. For the severance of blood vessels and organs in certain specific parts, the traditional linear cutting closure device is difficult to operate, and it is easy to damage the chest wall, blood vessels, and trachea during the operation, especially for clinicians who are not experienced enough. Summary of the invention

[0004] The purpose of the present invention is to solve the deficiencies of the prior art and provide a linear cutting closer foundation with multiple degrees of freedom and simple operation.

[0005] To achieve the above object, the present invention provides a multi-degree-of-freedom linear cutting closer, comprising

[0006] A handle, wherein the front end of the handle is fixedly connected to the connecting rod, the front end of the connecting rod is provided with an actuator, the actuator and the connecting rod are connected via a first joint, and the first joint is used to adjust the angle between the actuator and the connecting rod;

[0007] The connecting rod includes a first connecting part, a second connecting part and an extension part. The first connecting part, the second connecting part and the extension part are connected in sequence, and the first connecting part and the second connecting part, and the second connecting part and the extension rod are connected through a second joint. The second joint can be at any angle with the axis of the extension part.

[0008] Preferably: the actuator includes a nail anvil and a nail magazine seat, the nail anvil and the nail magazine seat are both connected to the first joint, and the nail anvil and the first joint are fixedly connected, the nail magazine seat and the nail anvil are connected through a rotating shaft, and a torsion spring is sleeved on the surface of the rotating shaft.

[0009] Preferably: the handle includes a handle body, the handle body includes a first grip and a first rotating structure, the first rotating structure is used to operate the first connecting part and the second connecting part, and to control the second joint, and the first transmission structure is arranged inside the handle body.

[0010] Preferably, the first rotating structure comprises a first transmission member and a second transmission member, the first transmission member and the first connecting portion are cooperatively connected, and when the first transmission member rotates, the angle between the first connecting portion and the axis of the connecting rod changes;

[0011] The second transmission member and the second connection portion are cooperatively connected. When the second transmission member rotates, the angle between the second connection portion and the axis of the connecting rod changes, and the angle between the first connection portion and the second connection portion is maintained.

[0012] Preferably, the first transmission member and the second transmission member have the same structure, and are both connected to the first transmission structure through a gear system and a bearing.

[0013] Preferably: an operating knob is provided on one side of the handle body, and the operating knob is used to rotate the first transmission member or the second transmission member. A switching switch is also provided on one side of the operating knob, and the switching switch is used to control the gear meshing between the operating knob and the first transmission member or the second transmission member.

[0014] Preferably, a second rotating structure is provided at the front end of the handle body, the second rotating structure is used to control the angle of the actuator, and a second handle is provided at the bottom of the second rotating mechanism, the second handle is used to operate the second rotating mechanism to rotate.

[0015] Preferably, a power supply module is provided inside the handle body, and the power supply module is used to supply power to the entire closer.

[0016] Compared with the prior art, the technical solution proposed in this application has the following beneficial effects: an additional degree of freedom is added to the tip of the operating rod, and the bending angle is smooth, so that the linear cutting closure device can reach the part that needs to be operated more smoothly, and the actuator, i.e., the nail magazine, is more free and accurate when passing through blood vessels and trachea, thereby improving the efficiency and safety of the operation, and at the same time can significantly shorten the learning curve of the surgeon. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0018] Figure 1 It is the overall structure diagram of the present invention;

[0019] Figure 2 It is a bending schematic diagram of the execution structure of the present invention;

[0020] Figure 3 This is the overall structural diagram of the present invention without the handle;

[0021] In the figure: 1. actuator, 2. connecting rod, 3. handle, 4. first connecting part, 5. second connecting part, 6. first joint, 7. extension rod, 8. nail support, 9. nail magazine seat, 10. first grip, 11. first rotating structure, 12. second grip, 13. second rotating structure, 14. second joint. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe and discuss the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0025] See also Figures 1 to 3 The present embodiment provides a multi-degree-of-freedom linear cutting closer, comprising a handle, the front end of the handle being fixedly connected to a connecting rod, the front end of the connecting rod being provided with an actuator, the actuator being connected to the connecting rod via a first joint, the first joint being used to adjust the angle between the actuator and the connecting rod; the connecting rod comprising a first connecting portion, a second connecting portion and an extension portion, the first connecting portion, the second connecting portion and the extension portion being connected in sequence, and the first connecting portion and the second connecting portion, and the second connecting portion and the extension rod being cooperatively connected via a second joint, the second joint being able to form any angle with the axis of the extension portion.

[0026] The actuator includes a nail anvil and a nail magazine seat, both of which are connected to the first joint, and the nail anvil and the first joint are fixedly connected, the nail magazine seat and the nail anvil are connected through a rotating shaft, and a torsion spring is sleeved on the surface of the rotating shaft. The first joint adopts a common connector of the closer in the prior art, which can make the actuator rotate freely within a certain angle, and is convenient to use.

[0027] The handle includes a handle body, and the handle body includes a first grip and a first rotating structure. The first rotating structure is used to operate the first connecting part and the second connecting part and to control the second joint. The first transmission structure is arranged inside the handle body.

[0028] The first rotating structure includes a first transmission member and a second transmission member, the first transmission member and the first connecting part are cooperatively connected, when the first transmission member rotates, the angle between the first connecting part and the axis of the connecting rod changes; the second transmission member and the second connecting part are cooperatively connected, when the second transmission member rotates, the angle between the second connecting part and the axis of the connecting rod changes, and the angle between the first connecting part and the second connecting part is maintained.

[0029] In the present embodiment, the first transmission member and the second transmission member have the same structure, and are both connected to the first transmission structure through a gear system and a bearing. It should be noted that other technical solutions that can operate the first connection part and the second connection part to achieve the same operating effect as the present embodiment are also feasible. It is only necessary to control the two connection parts separately to achieve the purpose of their respective rotations, and after turning to the target angle, they can lock themselves without affecting the normal operation of other parts. In other embodiments, the structures of the first transmission member and the second transmission member may be different. In other embodiments, the second joint may only serve to connect different parts, and the first connection part and the second connection part are made of elastic material, which can bend by themselves at a certain angle when needed.

[0030] An operating knob is provided on one side of the handle body, and the operating knob is used to rotate the first transmission member or the second transmission member. A switching switch is also provided on one side of the operating knob, and the switching switch is used to control the gear meshing of the operating knob and the first transmission member or the second transmission member. It should be noted that the operating knob is meshed with the first transmission member and the second transmission member through a gear system, and the meshing state can be switched at any time by the switching switch, so as to achieve the function of controlling the first connection part and the second connection part respectively.

[0031] A second rotating structure is provided at the front end of the handle body, and the second rotating structure is used to control the angle of the actuator. A second grip is provided at the bottom of the second rotating mechanism, and the second grip is used to operate the second rotating mechanism to rotate. In this embodiment, the second rotating structure is provided at the connection between the connecting rod and the handle, and is sleeved on the outside of the above connection. The substantial structure of the second rotating structure is also a gear train, and has multiple gears. After pressing the second grip once, the gear of the second rotating structure is switched once, so as to achieve fine adjustment of the actuator.

[0032] A power supply module is arranged inside the handle body, and the power supply module is used to supply power to the entire closer.

[0033] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and one or more of the above embodiments are combined into one embodiment. Those skilled in the art can make various changes or modifications or combinations within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

Claims

1. A multi-degree-of-freedom linear cutting closer, characterized in that: include A handle, wherein the front end of the handle is fixedly connected to the connecting rod, the front end of the connecting rod is provided with an actuator, the actuator and the connecting rod are connected via a first joint, and the first joint is used to adjust the angle between the actuator and the connecting rod; The connecting rod includes a first connecting part, a second connecting part and an extension part. The first connecting part, the second connecting part and the extension part are connected in sequence, and the first connecting part and the second connecting part, and the second connecting part and the extension rod are connected through a second joint. The second joint can be at any angle with the axis of the extension part.

2. A multi-degree-of-freedom linear cutting closer according to claim 1, characterized in that: The actuator includes a nail anvil and a nail magazine seat, both of which are connected to the first joint, and the nail anvil and the first joint are fixedly connected, the nail magazine seat and the nail anvil are connected through a rotating shaft, and a torsion spring is sleeved on the surface of the rotating shaft.

3. A multi-degree-of-freedom linear cutting closer according to claim 2, characterized in that: The handle includes a handle body, and the handle body includes a first grip and a first rotating structure. The first rotating structure is used to operate the first connecting part and the second connecting part and to control the second joint. The first transmission structure is arranged inside the handle body.

4. A multi-degree-of-freedom linear cutting closer according to claim 3, characterized in that: The first rotating structure includes a first transmission member and a second transmission member. The first transmission member is cooperatively connected with the first connecting portion. When the first transmission member rotates, the angle between the first connecting portion and the axis of the connecting rod changes.

5. A multi-degree-of-freedom linear cutting closer according to claim 4, characterized in that: The second transmission member and the second connection portion are cooperatively connected. When the second transmission member rotates, the angle between the second connection portion and the axis of the connecting rod changes, and the angle between the first connection portion and the second connection portion is maintained.

6. A multi-degree-of-freedom linear cutting closer according to claim 5, characterized in that: The first transmission member and the second transmission member have the same structure, and are both connected to the first transmission structure through a gear system and a bearing.

7. A multi-degree-of-freedom linear cutting closer according to claim 6, characterized in that: An operating knob is provided on one side of the handle body, and the operating knob is used to rotate the first transmission member or the second transmission member.

8. The multi-degree-of-freedom linear cutting closer according to claim 7, characterized in that: A switching switch is also provided on one side of the operating knob, and the switching switch is used to control the gear meshing of the operating knob and the first transmission member or the second transmission member.

9. A multi-degree-of-freedom linear cutting closer according to claim 8, characterized in that: A second rotating structure is provided at the front end of the handle body, and the second rotating structure is used to control the angle of the actuator. A second handle is provided at the bottom of the second rotating mechanism, and the second handle is used to operate the second rotating mechanism to rotate.

10. A multi-degree-of-freedom linear cutting closer according to claim 9, characterized in that: A power supply module is provided inside the handle body, and the power supply module is used to supply power to the entire closer.

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