An endoscopic auxiliary retractor for the digestive department

Abstract

The present invention relates to the technical field of medical devices, and discloses an endoscopic auxiliary traction device for the digestive department, which includes a housing. Three limiting rings are fixedly connected to the inner wall of the housing. A handle is fixedly connected to the side wall of the housing. A rubber expansion block is fixedly connected to the outer wall of the handle. When the user presses the arc-shaped pressing plate to descend, it drives the spring plate and the inclined surface friction block to descend, causing the inclined surface friction block to be squeezed, and the spring plate to retract into the arc-shaped pressing plate. At the same time, when the arc-shaped pressing plate descends, the bottom arc surface of the arc-shaped pressing plate will contact the surface of the spherical soft rod, squeezing the spherical soft rod to move towards the fixed ring. The spherical soft rod will squeeze the clamping block, causing the clamping block to rotate, and thus the diseased part can be clamped. The clamping force is controlled by the pressing depth of the arc-shaped pressing plate, ensuring that the diseased part is accurately clamped. By simply pressing the arc-shaped pressing plate or squeezing the connecting plate, the clamping force can be quickly adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of medical device equipment, and particularly to an endoscopic auxiliary tractor for the digestive department. Background Art

[0002] Digestive system endoscopy refers to a tubular instrument examination that can directly observe the lesions of the gastrointestinal tract and abdominal viscera under light illumination. In order to improve the use efficiency of the endoscope, it is necessary to traction the endoscope. The auxiliary tractor is a medical device used during gastrointestinal endoscopy examination or treatment to help doctors operate and observe better.

[0003] Among them, the tractor is usually used to gently traction the lesion site to make it more clearly exposed. It is often necessary to clamp the lesion site for better traction. Usually, it needs to be adjusted individually according to the patient's physical condition and treatment progress. The commonly used adjustment device usually uses a knob or a lever for adjustment, but multiple components need to be adjusted at one time, and the operation is relatively complex, affecting the adjustment speed. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides an endoscopic auxiliary tractor for the digestive department, including a housing. Three limiting rings are fixedly connected to the inner wall of the housing. A grip is fixedly connected to the side wall of the housing, and a rubber expansion block is fixedly connected to the outer wall of the grip.

[0005] An adjusting mechanism, the adjusting mechanism includes an inclined plane frame fixedly connected to the side wall of the housing. An arc-shaped extrusion plate is slidably connected to the side wall of the inclined plane frame. Two spring plates are slidably connected to the inner wall of the arc-shaped extrusion plate. Inclined plane friction blocks are fixedly connected to the side walls of the two spring plates. Two connecting plates are slidably connected to the inner wall of the adjusting mechanism. The side walls of the two connecting plates are fixedly connected to the side walls of the spring plates. A spherical soft rod is slidably connected to the inner wall of the housing. The outer wall of the spherical soft rod is slidably connected to the inner walls of the three limiting rings. A buffer assembly is arranged on the side wall of the housing.

[0006] The clamping mechanism includes a fixed ring fixedly connected to the inner wall of the housing. Four clamping blocks are rotatably connected to the inner wall of the fixed ring. Arc-shaped springs are fixedly connected to the side walls of the four clamping blocks. The four arc-shaped springs are fixedly connected to the left side of the fixed ring on the side away from the clamping blocks. An expansion component is arranged on the side wall of the housing. The user holds the handle and the rubber expansion block, then presses the arc surface extrusion plate to descend, driving the spring plate and the inclined surface friction block to descend, so that the inclined surface of the inclined surface friction block contacts the inclined surface of the inclined surface frame. At this time, the inclined surface friction block will be squeezed, causing the spring plate to retract into the arc surface extrusion plate, enabling the spring plate to accumulate resilience. At the same time, when the arc surface extrusion plate descends, the bottom arc surface of the arc surface extrusion plate will contact the surface of the spherical soft rod, thereby squeezing the spherical soft rod to move towards the fixed ring. The spherical soft rod will squeeze the clamping block, causing the clamping block to rotate, making the four clamping blocks approach each other. At the same time, the arc-shaped spring is stretched, enabling the arc-shaped spring to accumulate resilience. The four clamping blocks can clamp the diseased part. After clamping is completed, the pressing of the arc surface extrusion plate can be cancelled. Since the surface of the inclined surface friction block is relatively rough and has a large frictional force, and the resilience of the spring plate is less than the frictional force, the arc surface extrusion plate will stop. Then, the clamping force of the clamping block can be adjusted again. When the clamping force needs to be increased, just press the arc surface extrusion plate again, and it will continue to squeeze the spherical soft rod, thereby continuously squeezing the clamping block to increase the clamping force. When the clamping force needs to be reduced, press the connecting plate to make the spring plate retract into the arc surface extrusion plate, separating the inclined surface friction block from the inclined surface frame. At this time, the resilience of the arc-shaped spring will be released, causing the clamping block to return to its position, squeezing the side of the spherical soft rod close to the clamping block, making the spherical soft rod return to its position, thereby making the clamping blocks move away from each other, weakening the clamping force on the diseased part. At the same time, the spherical soft rod will push up the arc surface extrusion plate. The size of the clamping force is controlled by the pressing depth of the arc surface extrusion plate to ensure that the diseased part is accurately clamped. Just pressing the arc surface extrusion plate or squeezing the connecting plate can quickly adjust the clamping force.

[0007] Preferably, the buffer component includes two fixed blocks fixedly connected to the side wall of the housing. Two connecting rods are fixedly connected to the top of the arc surface extrusion plate. Two rotating frames are rotatably connected to the side wall of the housing. The bottoms of the two connecting rods are slidably connected to the inner walls of the rotating frames. When the arc surface extrusion plate descends, it will also drive the connecting rods to descend, causing the connecting rods to push the rotating frames to rotate, making the rotating frames tilt.

[0008] Preferably, the buffer component further includes a sliding plate slidably connected to the inner wall of the fixed block. Hydraulic oil is provided in the inner walls of the two fixed blocks. Two connecting frames are slidably connected to the inner walls of the two fixed blocks. The side walls of the two connecting frames are slidably connected to the inner walls of the rotating frames, thereby pushing the connecting frames away from the connecting rods and driving the sliding plate to move. Since there is hydraulic oil inside the fixed block, when the sliding plate moves, it will squeeze the hydraulic oil, and the squeezed hydraulic oil will enter the communication holes.

[0009] Preferably, the buffer assembly further includes a communication hole formed in the inner wall of the fixed block. The side walls of the two connecting frames are fixedly connected to the side wall of the sliding plate. The inner walls of the two fixed blocks are both provided with special-shaped grooves. The fluid is conveyed into the special-shaped grooves through the communication holes and finally enters the right side of the sliding plate through the special-shaped grooves. As Figure 6 shown, when the spherical soft rod returns to its original position and pushes up the arc-shaped pressing plate, the connecting rod will also rise, causing the sliding plate to return to its original position and squeezing the hydraulic oil near the special-shaped groove. Due to the shape of the special-shaped groove, which has a serpentine channel with multiple branches, when the hydraulic oil flowing into the special-shaped groove from the communication hole flows, the liquid flows along the main channel with almost no obstruction. However, when flowing in the reverse direction, the liquid will be guided into these complex branch channels, and the shape of these channels causes the fluid flow to encounter greater resistance, blocking the sliding plate and slowing down the return speed of the sliding plate.

[0010] Preferably, the expansion assembly includes two fixed frames fixedly connected to the side wall of the housing. The inner walls of the two fixed frames are both slidably connected with a first transverse moving plate, and fixed rods are fixedly connected to the side walls of the two first transverse moving plates.

[0011] Preferably, the expansion assembly further includes a fixing plate fixedly connected to the outer wall of the connecting frame. The inner walls of the two fixing plates are fixedly connected to the outer walls of the fixed rods. Three air pipes are connected through the inner walls of the two fixed frames. When the connecting frame moves away from the fixed block, it will drive the fixing plate to move, causing the fixed rods to move together, so that the first transverse moving plate moves away from the spherical soft rod. When the first transverse moving plate moves, it will squeeze the gas in the fixed frame.

[0012] Preferably, the expansion assembly further includes a connecting frame fixedly connected to the side wall of the fixed frame. The outer walls of the six air pipes are all connected through the inner walls of the rubber expansion blocks. The compressed gas will enter the rubber expansion blocks through the air pipes, causing the rubber expansion blocks to expand and better fit the user's hand.

[0013] Preferably, the expansion assembly further includes a second transverse moving plate slidably connected to the inner wall of the connecting frame. The inner walls of the two second transverse moving plates are fixedly connected to the outer walls of the fixed rods. Seven air outlet pipes are connected through the bottoms of the two connecting frames. When the fixed rods are driven to move together by the fixing plate, the fixed rods will also drive the second transverse moving plate to move, causing the second transverse moving plate to squeeze the gas in the connecting frame. The compressed gas will be ejected from the air outlet pipes towards the user's hand.

[0014] The present invention has the following beneficial effects:

[0015] (1) When the present invention is in use, the user holds the grip and the rubber expansion block, then presses the arc-shaped extrusion plate to descend, driving the spring plate and the inclined-plane friction block to descend, so that the inclined plane of the inclined-plane friction block contacts the inclined plane of the inclined-plane frame. At this time, the inclined-plane friction block will be extruded, causing the spring plate to retract into the arc-shaped extrusion plate, enabling the spring plate to accumulate resilience. Meanwhile, when the arc-shaped extrusion plate descends, the bottom arc surface of the arc-shaped extrusion plate will contact the surface of the spherical soft rod, thereby extruding the spherical soft rod to move towards the fixed ring. The spherical soft rod will extrude the clamping block, causing the clamping block to rotate, making the four clamping blocks approach each other. At the same time, the arc-shaped spring is stretched, enabling the arc-shaped spring to accumulate resilience. The four clamping blocks can then clamp the diseased part. After the clamping is completed, the pressing on the arc-shaped extrusion plate can be cancelled. Since the surface of the inclined-plane friction block is relatively rough and has a large frictional force, and the resilience of the spring plate is less than the frictional force, the arc-shaped extrusion plate will stop. Then, the clamping force of the clamping block can be adjusted again. When the clamping force needs to be increased, simply press the arc-shaped extrusion plate again, and it will continue to extrude the spherical soft rod, thereby continuously extruding the clamping block to increase the clamping force. When the clamping force needs to be reduced, press the connecting plate to make the spring plate retract into the arc-shaped extrusion plate, separating the inclined-plane friction block from the inclined-plane frame. At this time, the resilience of the arc-shaped spring will be released, causing the clamping block to return to its position, extruding the side of the spherical soft rod close to the clamping block, making the spherical soft rod return to its position, thereby making the clamping blocks move away from each other, weakening the clamping force on the diseased part. Meanwhile, the spherical soft rod will push up the arc-shaped extrusion plate. The clamping force is controlled by the pressing depth of the arc-shaped extrusion plate, ensuring that the diseased part is accurately clamped. Simply pressing the arc-shaped extrusion plate or the connecting plate can achieve rapid adjustment of the clamping force.

[0016] (2) When the arc-shaped extrusion plate of the present invention descends, it will also drive the connecting rod to descend, causing the connecting rod to push the rotating frame to rotate, making the rotating frame tilt, thereby pushing the connecting frame away from the connecting rod and driving the sliding plate to move. Since there is hydraulic oil inside the fixed block, when the sliding plate moves, it will squeeze the hydraulic oil. The squeezed hydraulic oil will enter the communication hole, be transported through the communication hole into the special-shaped groove, and finally enter the right side of the sliding plate through the special-shaped groove. As Figure 6 shown, when the spherical soft rod returns to its position and pushes up the arc-shaped extrusion plate, the connecting rod will also rise, causing the sliding plate to return to its position and squeezing the hydraulic oil near the special-shaped groove. Due to the shape of the special-shaped groove, which has multiple branched serpentine channels, when the hydraulic oil entering the special-shaped groove through the communication hole flows, the liquid flows along the main flow channel, and the fluid is hardly hindered. However, when flowing in the reverse direction, the liquid will be guided into these complex branched channels. The shape of these channels causes the fluid flow to encounter greater resistance, blocking the sliding plate and slowing down the return speed of the sliding plate, thereby slowing down the return speed of the arc-shaped extrusion plate, effectively preventing the arc-shaped spring from rebounding too quickly, which may cause a large separation distance between the clamping blocks and affect the adjustment of the clamping force, and enabling more precise adjustment of the required clamping force.

[0017] (3) When the connecting frame of the present invention moves away from the fixed block, it will drive the fixed plate to move, and the fixed rod will move together, so that the first transverse moving plate moves away from the spherical soft rod. When the first transverse moving plate moves, it will squeeze the gas in the fixed frame, and the squeezed gas will enter the rubber expansion block through the air delivery pipe, so that the rubber expansion block expands, better fitting the hand of the user, reducing the discomfort of the user holding the grip for a long time, effectively preventing the user from getting tired due to long-term holding, and affecting the control of the precise pressing force of the arc-shaped pressing plate.

[0018] (4) When the fixed rod is driven by the fixed plate to move together, the fixed rod will also drive the second transverse moving plate to move, so that the second transverse moving plate squeezes the gas in the connecting frame, and the squeezed gas will be ejected through the air outlet pipe towards the hand of the user. When the arc-shaped pressing plate is frequently pressed or lifted, the second transverse moving plate will reciprocate frequently on the inner wall of the connecting frame, and the air outlet pipe will frequently eject a small amount of gas towards the hand of the user. The tiny air flow brought by the frequent ejection of a small amount of gas helps to relieve the tension or discomfort of the hand muscles. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 An enlarged schematic view of A in it;

[0022] Figure 3 It is a schematic view of the overall structure of the present invention;

[0023] Figure 4 It is an exploded schematic view of the partial structure of the adjustment mechanism of the present invention;

[0024] Figure 5 It is a schematic cross-sectional view of the arc-shaped pressing plate of the present invention;

[0025] Figure 6 It is a schematic cross-sectional view of the fixed block of the present invention;

[0026] Figure 7 For the present invention Figure 6 An enlarged schematic view of B in it;

[0027] Figure 8 It is a schematic cross-sectional view of the fixed frame of the present invention.

[0028] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0029] In the figure: 1. Outer shell; 11. Limit ring; 12. Grip; 13. Rubber expansion block; 2. Adjusting mechanism; 21. Inclined plane frame; 22. Arc-shaped extrusion plate; 23. Spring plate; 231. Inclined plane friction block; 24. Connecting plate; 25. Spherical soft rod; 3. Clamping mechanism; 31. Fixed ring; 32. Clamping block; 33. Arc-shaped spring; 4. Buffer assembly; 41. Fixed block; 42. Connecting rod; 43. Rotating frame; 44. Connecting frame; 45. Sliding plate; 46. Communication hole; 47. Special-shaped groove; 5. Expansion assembly; 51. Fixed frame; 52. Transverse moving plate I; 53. Fixed rod; 54. Fixed plate; 55. Air delivery pipe; 56. Connecting frame; 57. Transverse moving plate II; 58. Air outlet pipe. Specific implementation mode

[0030] 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.

[0031] Embodiment 1. Please refer to Figures 1 - 5 , the present invention is an endoscopic auxiliary tractor for the digestive department, including an outer shell 1. Three limit rings 11 are fixedly connected to the inner wall of the outer shell 1. A grip 12 is fixedly connected to the side wall of the outer shell 1. A rubber expansion block 13 is fixedly connected to the outer wall of the grip 12;

[0032] An adjusting mechanism 2. The adjusting mechanism 2 includes an inclined plane frame 21 fixedly connected to the side wall of the outer shell 1. An arc-shaped extrusion plate 22 is slidably connected to the side wall of the inclined plane frame 21. Two spring plates 23 are slidably connected to the inner wall of the arc-shaped extrusion plate 22. Inclined plane friction blocks 231 are fixedly connected to the side walls of the two spring plates 23. Two connecting plates 24 are slidably connected to the inner wall of the adjusting mechanism 2. The side walls of the two connecting plates 24 are fixedly connected to the side walls of the spring plates 23. A spherical soft rod 25 is slidably connected to the inner wall of the outer shell 1. The outer wall of the spherical soft rod 25 is slidably connected to the inner walls of the three limit rings 11. A buffer assembly 4 is arranged on the side wall of the outer shell 1;

[0033] The clamping mechanism 3, the clamping mechanism 3 includes a fixing ring 31 fixedly connected to the inner wall of the housing 1. Four clamping blocks 32 are rotatably connected to the inner wall of the fixing ring 31. Arc-shaped springs 33 are fixedly connected to the side walls of the four clamping blocks 32. The sides of the four arc-shaped springs 33 away from the clamping blocks 32 are fixedly connected to the left side of the fixing ring 31. An expansion assembly 5 is arranged on the side wall of the housing 1. The user holds the handle 12 and the rubber expansion block 13, and then presses the arc surface pressing plate 22 to descend, driving the spring plate 23 and the inclined surface friction block 231 to descend, so that the inclined surface of the inclined surface friction block 231 contacts the inclined surface of the inclined surface frame 21. At this time, the inclined surface friction block 231 will be squeezed, causing the spring plate 23 to retract into the arc surface pressing plate 22, enabling the spring plate 23 to accumulate resilience. At the same time, when the arc surface pressing plate 22 descends, the bottom arc surface of the arc surface pressing plate 22 will contact the surface of the spherical soft rod 25, thereby squeezing the spherical soft rod 25 to move towards the fixing ring 31. The spherical soft rod 25 will squeeze the clamping block 32, causing the clamping block 32 to rotate, making the four clamping blocks 32 approach each other. At the same time, the arc-shaped spring 33 is stretched, enabling the arc-shaped spring 33 to accumulate resilience. The four clamping blocks 32 can clamp the diseased part. After the clamping is completed, the pressing of the arc surface pressing plate 22 can be cancelled. Since the surface of the inclined surface friction block 231 is relatively rough and the friction force is large, and the resilience of the spring plate 23 is less than the friction force, the arc surface pressing plate 22 will stop, and the clamping force of the clamping block 32 can be adjusted again. When the clamping force needs to be increased, just press the arc surface pressing plate 22 again, and it will continue to squeeze the spherical soft rod 25, thereby continuously squeezing the clamping block 32 to increase the clamping force. When the clamping force needs to be reduced, press the connecting plate 24 to make the spring plate 23 retract into the arc surface pressing plate 22, separating the inclined surface friction block 231 from the inclined surface frame 21. At this time, the resilience of the arc-shaped spring 33 will be released, causing the clamping block 32 to return to its original position, squeezing the side of the spherical soft rod 25 close to the clamping block 32, making the spherical soft rod 25 return to its original position, thereby making the clamping blocks 32 move away from each other, weakening the clamping force on the diseased part. At the same time, the spherical soft rod 25 will push up the arc surface pressing plate 22. The clamping force is controlled by the pressing depth of the arc surface pressing plate 22 to ensure that the diseased part is accurately clamped. Just pressing the arc surface pressing plate 22 or squeezing the connecting plate 24 can quickly adjust the clamping force.

[0034] Embodiment 2, please refer to Figures 6 - 8, the present invention is an endoscopic auxiliary tractor for the digestive department. On the basis of Example 1, the buffer assembly 4 includes two fixed blocks 41 fixedly connected to the side wall of the housing 1. Two connecting rods 42 are fixedly connected to the top of the arc-shaped extrusion plate 22. Two rotating frames 43 are rotatably connected to the side wall of the housing 1. The bottoms of the two connecting rods 42 are both slidably connected to the inner wall of the rotating frame 43. When the arc-shaped extrusion plate 22 descends, it will also drive the connecting rod 42 to descend, causing the connecting rod 42 to push the rotating frame 43 to rotate and making the rotating frame 43 tilt.

[0035] The buffer assembly 4 further includes a sliding plate 45 slidably connected to the inner wall of the fixed block 41. Hydraulic oil is provided in the inner walls of the two fixed blocks 41. Two connecting frames 44 are slidably connected to the inner walls of the two fixed blocks 41. The side walls of the two connecting frames 44 are both slidably connected to the inner wall of the rotating frame 43, thereby pushing the connecting frame 44 away from the connecting rod 42 and driving the sliding plate 45 to move. Since there is hydraulic oil inside the fixed block 41, when the sliding plate 45 moves, it will squeeze the hydraulic oil, and the squeezed hydraulic oil will enter the communication hole 46.

[0036] The buffer assembly 4 further includes a communication hole 46 opened in the inner wall of the fixed block 41. The side walls of the two connecting frames 44 are both fixedly connected to the side wall of the sliding plate 45. Special-shaped grooves 47 are opened in the inner walls of the two fixed blocks 41. It is conveyed into the special-shaped groove 47 through the communication hole 46 and finally enters the right side of the sliding plate 45 through the special-shaped groove 47. As Figure 6 shown, when the spherical soft rod 25 returns to its position and pushes the arc-shaped extrusion plate 22 up, the connecting rod 42 will also rise, causing the sliding plate 45 to return to its position and squeezing the hydraulic oil near the special-shaped groove 47. Due to the shape of the special-shaped groove 47, which has a serpentine channel with multiple branches, when the hydraulic oil flowing into the special-shaped groove 47 through the communication hole 46 flows, the liquid flows along the main flow channel and the fluid is hardly blocked. However, when flowing in the reverse direction, the liquid will be guided into these complex branch channels, and the shape of these channels causes the fluid flow to encounter greater resistance, blocking the sliding plate 45 and slowing down the return speed of the sliding plate 45.

[0037] The expansion assembly 5 includes two fixed frames 51 fixedly connected to the side wall of the housing 1. Two transverse moving plates 52 are slidably connected to the inner walls of the two fixed frames 51. Fixed rods 53 are fixedly connected to the side walls of the two transverse moving plates 52.

[0038] The expansion assembly 5 further includes a fixing plate 54 fixedly connected to the outer wall of the connecting frame 44. The inner walls of the two fixing plates 54 are fixedly connected to the outer wall of the fixing rod 53. Three air pipes 55 are connected through the inner walls of the two fixing frames 51. When the connecting frame 44 moves away from the fixing block 41, it will drive the fixing plate 54 to move, causing the fixing rod 53 to move together, so that the first transverse plate 52 moves away from the spherical soft rod 25. When the first transverse plate 52 moves, it will squeeze the gas in the fixing frame 51.

[0039] The expansion assembly 5 further includes a connecting frame 56 fixedly connected to the side wall of the fixing frame 51. The outer walls of the six air pipes 55 are connected through the inner walls of the rubber expansion blocks 13. The squeezed gas will enter the rubber expansion blocks 13 through the air pipes 55, so that the rubber expansion blocks 13 expand and better fit the hands of the user.

[0040] The expansion assembly 5 further includes a second transverse plate 57 slidably connected to the inner wall of the connecting frame 56. The inner walls of the two second transverse plates 57 are fixedly connected to the outer wall of the fixing rod 53. Seven air outlet pipes 58 are connected through the bottoms of the two connecting frames 56. When the fixing rod 53 is driven to move together by the fixing plate 54, the fixing rod 53 will also drive the second transverse plate 57 to move, causing the second transverse plate 57 to squeeze the gas in the connecting frame 56. The squeezed gas will be ejected through the air outlet pipes 58 towards the hands of the user.

[0041] The quantity of the above components is not limited. Those skilled in the relevant art can freely set it according to actual needs, as long as the above components are installed at the corresponding connection positions of the components.

[0042] A specific application of this embodiment is as follows: When the present invention is in use, the user holds the grip 12 and the rubber expansion block 13, and then presses the arc-shaped extrusion plate 22 to descend, driving the spring plate 23 and the inclined surface friction block 231 to descend, so that the inclined surface of the inclined surface friction block 231 contacts the inclined surface of the inclined surface frame 21. At this time, the inclined surface friction block 231 will be squeezed, causing the spring plate 23 to retract into the arc-shaped extrusion plate 22, enabling the spring plate 23 to accumulate resilience. At the same time, when the arc-shaped extrusion plate 22 descends, the bottom arc surface of the arc-shaped extrusion plate 22 will contact the surface of the spherical soft rod 25, thereby squeezing the spherical soft rod 25 to move towards the fixed ring 31. The spherical soft rod 25 will squeeze the clamping block 32, causing the clamping block 32 to rotate, making the four clamping blocks 32 approach each other. At the same time, the arc-shaped spring 33 is stretched, enabling the arc-shaped spring 33 to accumulate resilience. The four clamping blocks 32 can then clamp the diseased part. After the clamping is completed, the pressing on the arc-shaped extrusion plate 22 can be cancelled. Since the surface of the inclined surface friction block 231 is relatively rough and has a large frictional force, and the resilience of the spring plate 23 is less than the frictional force, the arc-shaped extrusion plate 22 will stop. Then, the clamping force of the clamping block 32 can be adjusted again. When the clamping force needs to be increased, simply press the arc-shaped extrusion plate 22 again, which will continue to squeeze the spherical soft rod 25, thereby further squeezing the clamping block 32 to increase the clamping force. When the clamping force needs to be decreased, press the connecting plate 24, causing the spring plate 23 to retract into the arc-shaped extrusion plate 22, separating the inclined surface friction block 231 from the inclined surface frame 21. At this time, the resilience of the arc-shaped spring 33 will be released, causing the clamping block 32 to return to its original position and squeeze the side of the spherical soft rod 25 close to the clamping block 32, causing the spherical soft rod 25 to return to its original position, thereby causing the clamping blocks 32 to move away from each other and reducing the clamping force on the diseased part. At the same time, the spherical soft rod 25 will push up the arc-shaped extrusion plate 22. The clamping force is controlled by the pressing depth of the arc-shaped extrusion plate 22 to ensure that the diseased part is accurately clamped. Simply pressing the arc-shaped extrusion plate 22 or squeezing the connecting plate 24 can achieve rapid adjustment of the clamping force;

[0043] Secondly, when the arc-shaped extrusion plate 22 descends, it will also drive the connecting rod 42 to descend, causing the connecting rod 42 to push the rotating frame 43 to rotate, making the rotating frame 43 tilt, thereby pushing the connecting frame 44 away from the connecting rod 42 and driving the sliding plate 45 to move. Since there is hydraulic oil inside the fixed block 41, when the sliding plate 45 moves, it will squeeze the hydraulic oil. The squeezed hydraulic oil will enter the communication hole 46 and be transported into the special-shaped groove 47 through the communication hole 46, and finally enter the right side of the sliding plate 45 through the special-shaped groove 47, as Figure 6As shown, when the spherical ball soft rod 25 returns to its original position and pushes up the arc surface extrusion plate 22, the connecting rod 42 will also rise, causing the sliding plate 45 to return to its original position and squeezing the hydraulic oil near the special-shaped groove 47. Due to the shape of the special-shaped groove 47, which has a serpentine channel with multiple branches, when the hydraulic oil flowing into the special-shaped groove 47 through the communication hole 46 flows, the liquid flows along the main flow channel and the fluid is hardly hindered. However, when flowing in the reverse direction, the liquid will be guided into these complex branch channels, and the shape of these channels causes the fluid flow to encounter greater resistance, blocking the sliding plate 45 and slowing down the return speed of the sliding plate 45, thereby slowing down the return speed of the arc surface extrusion plate 22, effectively preventing the arc spring 33 from rebounding too quickly, which may cause a large separation distance of the clamping block 32 and affect the adjustment of the clamping force, and enabling more precise adjustment of the required clamping force;

[0044] Secondly, when the connecting frame 44 moves away from the fixed block 41, it will drive the fixed plate 54 to move, causing the fixed rod 53 to move together, and thus causing the first transverse moving plate 52 to move away from the spherical ball soft rod 25. When the first transverse moving plate 52 moves, it will squeeze the gas in the fixed frame 51, and the squeezed gas will enter the rubber expansion block 13 through the air delivery pipe 55, thereby causing the rubber expansion block 13 to expand, better fitting the hand of the user, slowing down the discomfort of the user holding the grip 12 for a long time, and effectively preventing the user from getting fatigued during a long holding time, which may affect the precise control of the pressing force on the arc surface extrusion plate 22;

[0045] Secondly, when the fixed rod 53 is driven to move together by the fixed plate 54, the fixed rod 53 will also drive the second transverse moving plate 57 to move, causing the second transverse moving plate 57 to squeeze the gas in the connecting frame 56, and the squeezed gas will be ejected towards the hand of the user through the air outlet pipe 58. When the arc surface extrusion plate 22 is frequently pressed or lifted, the second transverse moving plate 57 will move back and forth frequently on the inner wall of the connecting frame 56, and the air outlet pipe 58 will frequently eject a small amount of gas towards the hand of the user. The tiny air flow brought by the frequent ejection of a small amount of gas helps to relieve the tension or discomfort of the hand muscles.

[0046] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An endoscopic auxiliary tractor for the digestive department, comprising a housing (1), three limiting rings (11) are fixedly connected to the inner wall of the housing (1), a handle (12) is fixedly connected to the side wall of the housing (1), and a rubber expansion block (13) is fixedly connected to the outer wall of the handle (12), characterized in that, Further included are: An adjusting mechanism (2), the adjusting mechanism (2) includes an inclined plane frame (21) fixedly connected to the side wall of the housing (1), a cambered surface pressing plate (22) is slidably connected to the side wall of the inclined plane frame (21), two spring plates (23) are slidably connected to the inner wall of the cambered surface pressing plate (22), inclined plane friction blocks (231) are fixedly connected to the side walls of the two spring plates (23), two connecting plates (24) are slidably connected to the inner wall of the adjusting mechanism (2), the side walls of the two connecting plates (24) are fixedly connected to the side walls of the spring plates (23), a spherical ball soft rod (25) is slidably connected to the inner wall of the housing (1), the outer wall of the spherical ball soft rod (25) is slidably connected to the inner walls of three limiting rings (11), and a buffer assembly (4) is arranged on the side wall of the housing (1); A clamping mechanism (3), the clamping mechanism (3) includes a fixed ring (31) fixedly connected to the inner wall of the housing (1), four clamping blocks (32) are rotatably connected to the inner wall of the fixed ring (31), arc-shaped springs (33) are fixedly connected to the side walls of the four clamping blocks (32), and the sides of the four arc-shaped springs (33) away from the clamping blocks (32) are fixedly connected to the left side of the fixed ring (31), and an expansion assembly (5) is arranged on the side wall of the housing (1); Among them, the user holds the handle (12) and the rubber expansion block (13), then presses the cambered surface pressing plate (22) to descend, driving the spring plate (23) and the inclined plane friction block (231) to descend. When the cambered surface pressing plate (22) descends, the bottom arc surface of the cambered surface pressing plate (22) will contact the surface of the spherical ball soft rod (25), thereby squeezing the spherical ball soft rod (25) to move towards the fixed ring (31). The spherical ball soft rod (25) will squeeze the clamping block (32), causing the clamping block (32) to rotate, so that the four clamping blocks (32) approach each other, and the four clamping blocks (32) can clamp the diseased part.

2. The endoscopic assisted tractor for digestive medicine according to claim 1, characterized in that: The buffer assembly (4) includes two fixed blocks (41) fixedly connected to the side wall of the housing (1), two connecting rods (42) are fixedly connected to the top of the cambered surface pressing plate (22), two rotating frames (43) are rotatably connected to the side wall of the housing (1), and the bottoms of the two connecting rods (42) are slidably connected to the inner walls of the rotating frames (43).

3. The endoscopic traction device for digestive medicine according to claim 2, characterized in that: The buffer assembly (4) further includes a sliding plate (45) slidably connected to the inner wall of the fixed block (41), hydraulic oil is arranged in the inner walls of the two fixed blocks (41), two connecting frames (44) are slidably connected to the inner walls of the two fixed blocks (41), and the side walls of the two connecting frames (44) are slidably connected to the inner walls of the rotating frames (43).

4. The endoscopic traction device for digestive medicine according to claim 3, wherein: The buffer assembly (4) further includes a communication hole (46) opened in the inner wall of the fixed block (41), the side walls of the two connecting frames (44) are fixedly connected to the side wall of the sliding plate (45), and special-shaped grooves (47) are opened in the inner walls of the two fixed blocks (41).

5. The endoscopic traction device for digestive medicine according to claim 4, characterized in that: The expansion assembly (5) includes two fixed frames (51) fixedly connected to the side wall of the outer shell (1). A first transverse movement plate (52) is slidably connected to the inner walls of the two fixed frames (51), and a fixed rod (53) is fixedly connected to the side walls of the two first transverse movement plates (52).

6. The endoscopic auxiliary traction device for the digestive department according to claim 5, characterized in that: The expansion assembly (5) further includes a fixed plate (54) fixedly connected to the outer wall of the connecting frame (44). The inner walls of the two fixed plates (54) are fixedly connected to the outer walls of the fixed rods (53). Three air delivery pipes (55) are connected through the inner walls of the two fixed frames (51).

7. The endoscopic assisted traction device for digestive medicine according to claim 6, characterized in that: The expansion assembly (5) further includes a connecting frame (56) fixedly connected to the side wall of the fixed frame (51). The outer walls of the six air delivery pipes (55) are connected through the inner walls of the rubber expansion blocks (13).

8. The endoscopic-assisted tractor for the digestive department according to claim 7, wherein: The expansion assembly (5) further includes a second transverse movement plate (57) slidably connected to the inner wall of the connecting frame (56). The inner walls of the two second transverse movement plates (57) are fixedly connected to the outer walls of the fixed rods (53). Seven air outlet pipes (58) are connected through the bottoms of the two connecting frames (56).

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