Rotatable and adjustable endoscopic surgery instrument for external thoracic treatment

Abstract

The invention relates to the technical field of medical apparatuses and instruments, and discloses a rotary adjustable endoscopic surgery instrument for thoracic therapy, which comprises a spherical hinge type bending connecting mechanism and a controllable rope body control mechanism. According to the rotation-adjustable endoscope operation instrument for external chest treatment, a three-point positioning mode is utilized, a rotating ball and a limiting disc are effectively positioned through three ropes which are arranged in an annular array mode, and therefore the stability of equipment during working is improved, and in addition, the rotation-adjustable endoscope operation instrument for external chest treatment is convenient to use. According to the device, the overall bending angle is adjusted through the relative rotation relation between the rotating ball body and the limiting disc, the adjusting freedom degree in a larger range is achieved, and therefore more use forms are provided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an instrument for laparoscopic surgery with rotational adjustment for thoracic treatment. Background Art

[0002] Thoracoscopic surgery (video-assisted thoracoscopic surgery) is a new minimally invasive thoracic surgery technology that uses modern imaging technology and high-tech surgical instruments to complete complex intrathoracic surgeries through chest wall trocars or small incisions. Commonly used instruments include grasping forceps, biopsy forceps, etc. However, such forceps are of a fixed style, only the front-end operation methods are different, and the middle fixed section is immovable by fixed nails. During the operation, situations often occur where bending operations are required. However, because the forceps body is a rigid long rod type, it is very difficult to perform bending operations, which makes the operation process inconvenient.

[0003] For this reason, Chinese Patent with the publication number "CN110897681A" discloses "an instrument for laparoscopic surgery with rotational adjustment for thoracic surgery". Its main structure includes a support mechanism and a working mechanism. The working mechanism is connected to the support mechanism. It also includes a rotating mechanism for assisting the bending of the working mechanism and an adjusting mechanism for adjusting the bending angle of the rotating mechanism. The adjusting mechanism is connected to the support mechanism, and the rotating mechanism is installed inside the working mechanism. When adjusting the curvature of this instrument for laparoscopic surgery with rotational adjustment for thoracic surgery, hold the first handle and the second handle, and start operating using the working mechanism. When it is necessary to bend the trocar, rotate the first adjusting wheel or the second adjusting wheel according to the position that needs to be adjusted. The wheel body drives the central shaft, the central shaft drives the rotating disc, the rotating disc drives the adjusting chain, and the bending trocar is pulled by the adjusting chain and bends, so that the trocar can be bent to perform the next operation. At the same time, because the fixed block is fixed on the second handle, and a locking block is provided between the fixed block and the wheel body, when the wheel body rotates, the fixed block can fix the wheel body, thus fixing the wheel body.

[0004] However, the trocar in the above-mentioned instrument for laparoscopic surgery with rotational adjustment for thoracic surgery can only be bent and adjusted at a single planar angle, resulting in a relatively low degree of freedom in angle adjustment. Moreover, it uses a single rope for fixation, resulting in relatively low stability during operation. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an instrument for laparoscopic surgery with rotational adjustment for thoracic treatment. By using a three-point positioning method, effective positioning of the rotating sphere and the limiting disc is achieved through three wire ropes arranged in a circular array, thereby improving the stability of the device during operation. In addition, the device uses the relative rotational relationship between the rotating sphere and the limiting disc to adjust the overall bending angle, with a greater range of adjustment freedom, thus providing more usage forms and solving the above technical problems.

[0006] To achieve the above object, the present invention provides the following technical solution: An instrument for laparoscopic surgery with rotational adjustment for external chest treatment, comprising a hand-held rod with a fixed sleeve mounted on the top, a remotely controllable remote grasping forceps capable of generating a clamping function, and a first connecting plate mounted at one end of the remote grasping forceps. It further includes a ball hinge type bending connection mechanism, which internally has a plurality of linearly arrayed and equally spaced limiting disks, a rotating sphere disposed between every two adjacent limiting disks and capable of achieving a rotating effect, a first end chuck and a second end chuck disposed on both sides and fixedly connected to the first connecting plate, and three linearly arrayed ropes capable of limiting the limiting disks, the first end chuck and the second end chuck; and a controllable rope control mechanism, which internally has a horizontal hollow housing fixedly mounted at the end of the second end chuck and in a hollow state, three first spiral springs disposed inside the horizontal hollow housing and capable of respectively elastically pre-tightening the three ropes, three cylindrical elastic diaphragms disposed around the ropes and capable of closing inward under liquid pressure to fix the ropes, and a piston plate disposed inside the horizontal hollow housing and capable of applying pressure to the liquid located inside the horizontal hollow housing.

[0007] Preferably, the ball hinge type bending connection mechanism includes a plurality of linearly arrayed and equally spaced limiting disks. Each longitudinal end face of the limiting disks is respectively provided with an inwardly concave spherical card slot. A first end chuck and a second end chuck are respectively disposed on the peripheries of the two limiting disks on both sides. The corresponding ends of the first end chuck and the second end chuck are provided with the same spherical card slots. A rotating sphere is placed between every two spherical card slots. Three linearly arrayed first wire holes are provided on the circumferential sides of the limiting disks, the first end chuck and the second end chuck. A rope passes through the first wire holes located on the same straight line. One end of the rope located at the first end chuck is fixedly mounted inside the first end chuck. One end of the first end chuck is provided with a second connecting plate integrally formed therewith and fixedly connected to the first connecting plate. One end of the second end chuck is provided with a third connecting plate integrally formed therewith.

[0008] Preferably, the structural radius of the spherical card slot is the same as the structural radius of the rotating sphere, and the depth of the spherical card slot is less than the structural radius of the rotating sphere.

[0009] Preferably, the controllable rope control mechanism includes a horizontal hollow housing. At the center of one end of the horizontal hollow housing, there is a fourth connecting plate which is of an integral structure with the horizontal hollow housing and fixedly connected to the third connecting plate. Inside the horizontal hollow housing, there is a central component moving cavity. At one end of the central component moving cavity, there is a rod perforation communicating with the external space. At the other end of the central component moving cavity, there is a liquid limiting flow cavity. The horizontal hollow housing is provided with three second wire holes capable of inserting a wire rope around the periphery of the liquid limiting flow cavity. Around the middle region of each second wire hole, there is a liquid compression cavity respectively. The circumferential inner wall of the liquid compression cavity and the circumferential inner wall of the liquid limiting flow cavity are connected through a liquid flow hole. The horizontal hollow housing is respectively edge-embedded with a cylindrical elastic diaphragm around the wire rope at the intersection of each second wire hole and the liquid compression cavity. At the end of each second wire hole of the horizontal hollow housing, there is a side component moving cavity respectively. Inside each side component moving cavity, there is an internal moving plate capable of moving axially along the side component moving cavity. One end of the internal moving plate is provided with a concave structure and a rope fixing groove for fixedly installing the wire rope. A first helical spring in a compressed state is sleeved around the wire outside the side component moving cavity of the wire rope. Inside the central component moving cavity, there is a piston plate capable of moving axially along the central component moving cavity. One end of the piston plate is fixedly installed with a pull rod passing through the rod perforation. A second helical spring in a compressed state is sleeved around the rod outside the central component moving cavity of the pull rod. The closed area formed by the piston plate, the central component moving cavity, the liquid limiting flow cavity, the liquid flow hole, the cylindrical elastic diaphragm and the liquid compression cavity is filled with a buffer liquid.

[0010] Preferably, the distance between the second wire hole and the axis of the horizontal hollow housing is the same as the distance between the first wire hole and the axis of the second end chuck.

[0011] Preferably, the elastic pressure formed by the second helical spring on the buffer liquid is sufficient to cause the cylindrical elastic diaphragm to contract inwards and clamp the wire rope.

[0012] Compared with the prior art, the present invention provides a laparoscopic surgical instrument for rotational adjustment in external chest treatment, having the following beneficial effects:

[0013] By using a three-point positioning method, effective positioning of the rotating sphere and the limiting disc is achieved through three wire ropes arranged in a circular array, thereby improving the stability of the device during operation. In addition, the device uses the relative rotation relationship between the rotating sphere and the limiting disc to adjust the overall bending angle, having a greater range of adjustment freedom, and thus providing more usage forms. Description of the Drawings

[0014] Figure 1 Isometric view of the present invention;

[0015] Figure 2 Isometric sectional view of the present invention;

[0016] Figure 3 Isometric view of the ball hinge type bending connection mechanism in the present invention;

[0017] Figure 4 Isometric sectional view of the ball hinge type bending connection mechanism in the present invention;

[0018] Figure 5 Isometric view of the controllable rope control mechanism in the present invention;

[0019] Figure 6 Isometric sectional view of the controllable rope control mechanism in the present invention from the first perspective;

[0020] Figure 7 Isometric sectional view of the controllable rope control mechanism in the present invention from the second perspective;

[0021] Figure 8 Isometric sectional view of the controllable rope control mechanism in the present invention from the third perspective.

[0022] Wherein: 1. Hand-held rod; 2. Fixed sleeve; 3. Remote control grasping pliers; 4. First connecting plate; 5. Ball hinge type bending connection mechanism; 51. Limiting disc; 52. Spherical card slot; 53. Rotating sphere; 54. First end chuck; 55. Second connecting plate; 56. Second end chuck; 57. Third connecting plate; 58. First wire hole; 59. Wire rope; 6. Controllable rope control mechanism; 61. Horizontal hollow housing; 62. Fourth connecting plate; 63. Central component moving cavity; 64. Rod body perforation; 65. Liquid limiting flow cavity; 66. Liquid compression cavity; 67. Liquid flow hole; 68. Side component moving cavity; 69. Cylindrical elastic diaphragm; 610. Second wire hole; 611. Internal moving plate; 612. Rope fixing groove; 613. First spiral spring; 614. Piston plate; 615. Pull rod; 616; Second spiral spring. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figure 1 and Figure 2, A laparoscopic surgical instrument with rotational adjustment for external chest treatment, comprising a handgrip 1 with a fixed sleeve 2 mounted on top, a remotely controllable remote grasping forceps 3 capable of generating a grasping function, and a first connecting plate 4 mounted at one end of the remote grasping forceps 3. The doctor holds the handgrip 1 and controls the movement of the remote grasping forceps 3 to the surgical area. Then, a control signal is applied to the remote grasping forceps 3 by an external remote control device, causing the remote grasping forceps 3 to grasp a specific tissue. After that, the device is removed, and the remote grasping forceps 3 is controlled to release the grasped tissue in a specific area.

[0025] To achieve a bending adjustment function with a higher degree of freedom, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , it is necessary to set up a ball-joint type bending connection mechanism 5, which internally has a plurality of linearly arrayed and equally spaced limiting discs 51, rotating spheres 54 disposed between every two adjacent limiting discs 51 and capable of producing a rotating effect, first end chucks 54 and second end chucks 56 placed on both sides and fixedly connected to the first connecting plate 4, and three wire ropes 59 arranged in a circular array and capable of limiting the limiting discs 51, first end chucks 54 and second end chucks 56. Such that the cylindrical elastic diaphragm 69 is not affected by the liquid pressure. Under the effect of its own elastic reset, the clamping force of the cylindrical elastic diaphragm 69 on the wire ropes 59 will be reduced to zero. Then, the medical staff can manually adjust the bending angle of the entire ball-joint type bending connection mechanism 5 as required. During the adjustment process, the three wire ropes 59 will undergo adaptive elongation or contraction. Finally, the three wire ropes 59 will control a plurality of rotating spheres 54 and limiting discs 51 to bend into the required shape, and the rotating spheres 54 and limiting discs 51 have a larger range of angle adjustment functions, thereby achieving a bending adjustment function with a higher degree of freedom.

[0026] Regarding the specific structure of the ball-joint type bending connection mechanism 5, please refer to Figure 3 and Figure 4, including a plurality of limiting disks 51 that are linear arrays and equally spaced. Each longitudinal end face of the limiting disks 51 is respectively provided with a spherical card slot 52 having a concave structure. One first end chuck 54 and one second end chuck 56 are respectively arranged on the peripheries of the two limiting disks 51 on both sides. The corresponding ends of the first end chuck 54 and the second end chuck 56 are provided with the same spherical card slots 52. A rotating sphere 53 is placed between every two spherical card slots 52. Three wire holes 58 arranged in an annular array are provided on the circumferential side faces of the limiting disks 51, the first end chuck 54, and the second end chuck 56. A wire rope 59 passes through the wire holes 58 that are located on the same straight line. One end of the wire rope 59 located at the first end chuck 54 is fixedly installed inside the first end chuck 54. One end of the first end chuck 54 is provided with a second connecting plate 55 that is integrally structured with it and fixedly connected to the first connecting plate 4. One end of the second end chuck 56 is provided with a third connecting plate 57 that is integrally structured with it. The structural radius of the spherical card slot 52 is the same as the structural radius of the rotating sphere 53, and the depth of the spherical card slot 52 is less than the structural radius of the rotating sphere 53.

[0027] In order to achieve the adaptive length control function of the wire rope 59, please refer to Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 8, it is necessary to set up a controllable rope control mechanism 6, which internally has a horizontal hollow housing 61 fixedly installed at the end of the second-end chuck 56 and hollow inside, three first helical springs 613 placed inside the horizontal hollow housing 61 and capable of respectively producing elastic pre-tightening effects on the three wire ropes 59, three cylindrical elastic diaphragms 69 placed around the wire ropes 59 and closing inwards under liquid pressure to fix the wire ropes 59, and a piston plate 614 placed inside the horizontal hollow housing 61 and capable of generating pressure on the liquid inside the horizontal hollow housing 61. First, pull the pull rod 615 outwards, and the pressure of the buffer liquid on the cylindrical elastic diaphragm 69 will gradually decrease. When the pressure drops to zero, medical staff can manually adjust the bending angle of the entire ball-joint bending connection mechanism 5 as required. During the adjustment process, the first helical spring 613 will produce an elastic damping effect on the movement of the internal movable plate 611 and keep each wire rope 59 in a taut state. At the same time, the three wire ropes 59 will undergo adaptive elongation or contraction. Finally, the three wire ropes 59 will control the multiple rotating spheres 54 and the limiting disks 51 to bend into the required shape. At this time, release the pulling force on the pull rod 615. Under the elastic force of the second helical spring 616, the buffer liquid will generate hydraulic pressure on the cylindrical elastic diaphragm 69, causing the inner diameter of the cylindrical elastic diaphragm 69 to close until it clamps each wire rope 59, thereby positioning the wire ropes 59. Eventually, the rotating spheres 54 and the limiting disks 51 will be kept in the required shape, thus realizing the adaptive length control function of the wire ropes 59.

[0028] For the specific structure of the controllable rope control mechanism 6, please refer to Figure 5 , Figure 6 , Figure 7 and Figure 8, including a horizontal hollow housing 61. At the center of one end of the horizontal hollow housing 61, there is a fourth connecting plate 62 which is of an integral structure with it and fixedly connected to the third connecting plate 57. Inside the horizontal hollow housing 61, there is a central component moving cavity 63. At one end of the central component moving cavity 63, there is a rod perforation 64 communicating with the external space. At the other end of the central component moving cavity 63, there is a liquid limiting flow cavity 65. The horizontal hollow housing 61 is provided with three second wire holes 610 capable of inserting a wire rope 59 around the periphery of the liquid limiting flow cavity 65. Around the middle region of each second wire hole 610, there is a liquid compression cavity 66 respectively. The circumferential inner wall of the liquid compression cavity 66 and the circumferential inner wall of the liquid limiting flow cavity 65 are connected through a liquid flow hole 67. The horizontal hollow housing 61 is respectively edge-embedded with a cylindrical elastic diaphragm 69 located around the wire rope 59 at the intersection of each second wire hole 610 and the liquid compression cavity 66. The horizontal hollow housing 61 is respectively provided with a side component moving cavity 68 at the end of each second wire hole 610. Inside each side component moving cavity 68, there is an internal moving plate 611 capable of moving axially along the side component moving cavity 68. One end of the internal moving plate 611 is provided with a concave structure and a rope fixing groove 612 for fixedly installing the wire rope 59. Around the wire body of the wire rope 59 located inside the side component moving cavity 68, there is a first helical spring 613 in a compressed state. Inside the central component moving cavity 63, there is a piston plate 614 capable of moving axially along the central component moving cavity 63. One end of the piston plate 614 is fixedly installed with a pull rod 615 passing through the rod perforation 64. Around the rod body of the pull rod 615 located inside the central component moving cavity 63, there is a second helical spring 616 in a compressed state. The closed area formed by the piston plate 614, the central component moving cavity 63, the liquid limiting flow cavity 65, the liquid flow hole 67, the cylindrical elastic diaphragm 69 and the liquid compression cavity 66 is filled with a buffer liquid. The distance between the second wire hole 610 and the axis of the horizontal hollow housing 61 is the same as the distance between the first wire hole 58 and the axis of the second end chuck 56. The elastic pressure formed by the second helical spring 616 on the buffer liquid is sufficient to cause the cylindrical elastic diaphragm 69 to contract inward and clamp the wire rope 59.

[0029] In use, first pull the pull rod 615 outwards. The pressure of the buffer liquid on the cylindrical elastic diaphragm 69 will gradually decrease. When the pressure drops to zero, medical staff can manually adjust the bending angle of the entire ball hinge type bending connection mechanism 5 as required. During the adjustment process, the first helical spring 613 will produce an elastic damping effect on the movement of the internal movable plate 611, and make each wire rope 59 in a taut state. At the same time, the three wire ropes 59 will undergo adaptive elongation or contraction. Finally, the three wire ropes 59 will control the multiple rotating spheres 54 and the limiting disc 51 to bend into the required shape. At this time, release the pulling force on the pull rod 615. Under the elastic force of the second helical spring 616, the buffer liquid will generate hydraulic pressure on the cylindrical elastic diaphragm 69, causing the inner diameter of the cylindrical elastic diaphragm 69 to close until it clamps each wire rope 59, thereby positioning the wire rope 59. Eventually, the rotating spheres 54 and the limiting disc 51 will be maintained in the required shape. The doctor holds the holding rod 1 by hand, controls the remote control grasping forceps 3 to move to the surgical area, and then relies on an external remote control device to apply control information to the remote control grasping forceps 3, so that the remote control grasping forceps 3 grasp a specific tissue, and then take out the device and control the remote control grasping forceps 3 to release the grasped tissue in a specific area.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laparoscopic surgical instrument for thoracic surgery with rotation adjustment, comprising a hand grip (1) with a fixing sleeve (2) installed on the top, a remote control grasping forceps (3) that can be remotely controlled to produce a clamping function, and a No. 1 connecting plate (4) installed at one end of the remote control grasping forceps (3), characterized in that: Also includes, A ball-joint bending connection mechanism (5) is provided inside thereof with a plurality of linear array and equally spaced limiting disks (51), a rotating sphere (54) arranged between every two adjacent limiting disks (51) and capable of generating a rotating effect, a No. 1 end chuck (54) and a No. 2 end chuck (56) arranged on both sides and fixedly connected to a No. 1 connecting plate (4), and three wire ropes (59) arranged in an annular array and capable of generating a limiting effect on the limiting disks (51), the No. 1 end chuck (54) and the No. 2 end chuck (56); And a controllable rope control mechanism (6), which is provided with a horizontal hollow shell (61) fixedly mounted on the end of the No. 2 end chuck (56) and having a hollow interior, three No. 1 coil springs (613) placed inside the horizontal hollow shell (61) and capable of respectively exerting an elastic pre-tightening effect on the three ropes (59), three cylindrical elastic diaphragms (69) placed outside the ropes (59) and closing inwards after being subjected to liquid pressure to thereby fix the ropes (59), and a piston plate (614) placed inside the horizontal hollow shell (61) and capable of exerting pressure on the liquid inside the horizontal hollow shell (61).

2. The laparoscopic surgical instrument with rotation adjustment for extrathoracic treatment according to claim 1, characterized in that: The ball-joint bending connection mechanism (5) comprises a plurality of linear array limit plates (51) with equal spacing, each of the longitudinal end faces of the limit plates (51) being provided with a spherical clamping groove (52) with an inwardly concave structure, and the outer peripheries of the two limit plates (51) located on both sides are provided with a first end clamping disc (54) and a second end clamping disc (56), and the corresponding ends of the first end clamping disc (54) and the second end clamping disc (56) are provided with the same spherical clamping groove (52), and a rotating ball (53) is placed between each two spherical clamping grooves (52). The circumferential side surfaces of the disk (54) and the No. 2 end chuck (56) are provided with three No. 1 wire holes (58) arranged in a circular array, and a wire rope (59) passes through the plurality of No. 1 wire holes (58) located on the same straight line, and the wire rope (59) is fixedly installed inside the No. 1 end chuck (54) at one end thereof, and a No. 2 connecting plate (55) which is an integral structure with the No. 1 end chuck (54) and is fixedly connected to the No. 1 connecting plate (4) is provided at one end thereof, and a No. 3 connecting plate (57) which is an integral structure with the No. 2 end chuck (56) is provided at one end thereof.

3. The laparoscopic surgical instrument with rotation adjustment for extrathoracic treatment according to claim 2, characterized in that: The structural radius of the spherical groove (52) is the same as the structural radius of the rotating sphere (53), and the depth of the spherical groove (52) is smaller than the structural radius of the rotating sphere (53).

4. The laparoscopic surgical instrument with rotation adjustment for extrathoracic treatment according to claim 3, characterized in that: The controllable rope control mechanism (6) comprises a horizontal hollow shell (61), a fourth connecting plate (62) which is an integral structure with the horizontal hollow shell (61) and fixedly connected to the third connecting plate (57) is arranged at the center of one end of the horizontal hollow shell (61), a central component movable cavity (63) is arranged inside the horizontal hollow shell (61), a rod body through hole (64) which communicates with the external space is arranged at one end of the central component movable cavity (63), a liquid limiting flow cavity (65) is arranged at the other end of the central component movable cavity (63), and the horizontal hollow shell (61) is located in the liquid limiting flow cavity. The outer periphery of the second line hole (65) is provided with three second line holes (610) into which the line rope (59) can be inserted. The outer periphery of the middle area of ​​each second line hole (610) is provided with a liquid compression chamber (66). The circumferential inner wall of the liquid compression chamber (66) and the circumferential inner wall of the liquid limiting flow chamber (65) are connected through a liquid flow hole (67). The horizontal hollow shell (61) is embedded with a cylindrical elastic diaphragm (69) located on the outer periphery of the line rope (59) at the intersection of each second line hole (610) and the liquid compression chamber (66). The horizontal hollow shell (61) is in position A side component movable cavity (68) is respectively arranged at the end of each No. 2 wire hole (610), and an internal movable plate (611) capable of axially moving along the side component movable cavity (68) is respectively arranged inside each of the side component movable cavities (68), and one end of the internal movable plate (611) is provided with a rope body fixing groove (612) with an inner concave structure and used for fixing and installing the rope (59), and the rope (59) is provided with a No. 1 coil spring (613) in a compressed state on the outer periphery of the rope body located inside the side component movable cavity (68), and the inner portion of the central component movable cavity (63) is provided with a plurality of inner movable plates (611) and a plurality of inner movable plates (612) for fixing and installing the rope (59). A piston plate (614) capable of axially moving along the active cavity (63) of the central component is placed on the part, and a pull rod (615) penetrating the through hole (64) of the rod body is fixedly installed on one end of the piston plate (614), and a No. 2 coil spring (616) in a compressed state is placed on the outer periphery of the rod body inside the active cavity (63) of the central component. The closed area formed by the piston plate (614), the active cavity (63) of the central component, the liquid limiting flow cavity (65), the liquid flow hole (67), the tubular elastic diaphragm (69) and the liquid compression cavity (66) is filled with a buffer solution.

5. The laparoscopic surgical instrument with rotation adjustment for extrathoracic treatment according to claim 4, characterized in that: The distance between the second wire hole (610) and the axis of the horizontal hollow housing (61) is the same as the distance between the first wire hole (58) and the axis of the second end chuck (56).

6. The laparoscopic surgical instrument with rotation adjustment for extrathoracic treatment according to claim 5, characterized in that: The elastic pressure exerted by the No. 2 coil spring (616) on the buffer is sufficient to cause the cylindrical elastic diaphragm (69) to retract and clamp the wire rope (59).

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