Multi-direction auxiliary traction forceps for digestive endoscopy

Abstract

The invention discloses a pair of multi-direction auxiliary traction forceps for a digestive endoscope. The pair of multi-direction auxiliary traction forceps comprises a steering assembly and a clamping assembly, the front end of the steering assembly is rotationally connected with the clamping assembly. The steering assembly comprises a rotary knob, a worm gear, a worm, a transmission rod, a driving gear, a connecting shaft, a holding rod, a steering groove, a round head, a steering shaft and a steering gear. A hole is formed in the rear end of the holding rod and rotationally connected with the transmission rod, and steering grooves are symmetrically formed in the two sides of the front end of the holding rod; a worm is arranged at the front end of the transmission rod; a driving gear is arranged in the middle of the connecting shaft, and a worm gear meshing worm is arranged on one side; the front end of the round head is fixedly connected with the clamping assembly, the rear end is provided with a steering shaft which is rotationally connected with the steering groove, and the outer side is provided with a steering gear meshed with the driving gear; and the multi-angle flexible steering of the clamping assembly relative to the holding rod is realized.

Description

Technical Field

[0001] The invention belongs to the technical field of auxiliary traction forceps, and in particular relates to a multi-directional auxiliary traction forceps for digestive endoscopy. Background Art

[0002] With the continuous advancement of medical technology, digestive endoscopy has become an indispensable and important tool in the diagnosis and treatment of digestive system diseases. It can directly observe the pathological conditions inside the digestive tract, such as gastric ulcers, polyps, tumors, etc., and can perform a variety of minimally invasive treatment operations, such as biopsy, polypectomy, endoscopic mucosal resection, endoscopic submucosal dissection, etc.; compared with traditional surgical operations, this minimally invasive diagnosis and treatment method has significant advantages such as less trauma, faster recovery, and fewer complications. Therefore, it has been increasingly widely used in clinical practice; however, with the continuous expansion and deepening of digestive endoscopy diagnosis and treatment technology, the requirements for operational accuracy are also getting higher and higher; when performing some complex treatment operations, such as in delicate submucosal dissection operations, it is necessary to precisely control the operation of surgical instruments on the diseased tissue, including accurately grasping and pulling the tissue to clearly expose the surgical field of view and avoid unnecessary damage to the surrounding normal tissues; In the existing technology, the existing traction forceps can only clamp on both sides. When facing some lesions with irregular shapes or high mucus secretion, the traditional traction forceps have poor clamping stability and are prone to slipping of lesions. At the same time, when facing lesions in intestinal bends and gastric folds, the clamping head cannot be accurately aligned with the target tissue, affecting the accuracy and effectiveness of the surgery. Therefore, in response to the above technical problems, this solution proposes a multi-directional auxiliary traction forceps for digestive endoscopy. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention designs a multi-directional auxiliary traction forceps for digestive endoscopy. By providing a clamping assembly fixed in four directions and a clamping head at the clamping position, the diseased tissue can be stably clamped when clamping the diseased tissue, preventing the problem of slipping caused by unstable clamping when facing diseased tissue with irregular shape or high mucus secretion; at the same time, a steering assembly is provided at the rear end of the clamping assembly. By providing a steering gear at the rear end of the clamping assembly and providing a driving gear in the grip rod, the two gears are externally meshed, so that the front end clamping assembly can be offset left and right, so that lesions in the intestinal bends and gastric folds can be accurately clamped, thereby improving the accuracy of the operation; In order to achieve the above technical effects, the present invention is implemented through the following technical solutions: a multi-directional auxiliary traction forceps for digestive endoscope, comprising: a steering component, a clamping component; The front end of the steering assembly is rotatably connected to the clamping assembly; The steering assembly includes a knob, a worm wheel, a worm, a transmission rod, a driving gear, a coupling shaft, a grip rod, a steering groove, a round head, a steering shaft, and a steering gear; the grip rod is rotatably connected to the coupling shaft, a hole is provided at the rear end for rotatably connecting to the transmission rod, and steering grooves are symmetrically provided on both sides of the front end; a knob is provided at the rear end of the transmission rod, and a worm is provided at the front end; a driving gear is provided in the middle of the coupling shaft, and a worm wheel is provided on one side for meshing with the worm; the front end of the round head is fixedly connected to the clamping assembly, the rear end is provided with a steering shaft for rotatably connecting to the steering groove, and a steering gear is provided on the outside for meshing with the driving gear; Furthermore, the steering gear is a residual gear, which is arranged 180 degrees around the round head and is arranged perpendicular to the steering shaft; Furthermore, grooves are provided on both sides of the steering groove at the front end of the grip rod for the round head to turn; Furthermore, the coupling shaft is fixedly connected to the driving gear and the worm gear; Furthermore, the clamping assembly includes a steering housing, a clamping platform, a clamping slot, a clamping shaft, a telescopic motor, a telescopic rod, a control rod, a telescopic base, a telescopic support, a side rod, a clamping link, and a clamping plate; the rear end of the steering housing is fixedly connected to a round head, the interior is set to be hollow, a telescopic motor is set at the bottom, and a clamping platform is set at the front end; the telescopic rod at the front end of the telescopic motor is fixedly connected to the control rod; a cross-shaped telescopic base is set at the front end of the control rod; four telescopic supports are arranged in an array on the telescopic base; the telescopic base is rotatably connected to one end of the side rod; the other end of the side rod is rotatably connected to the middle part of the clamping link; four clamping slots are arranged in an array on the clamping platform; a clamping shaft is set in the clamping slot to be rotatably connected to the front end of the clamping link; a clamping plate is set at the front end of the clamping link; Furthermore, a rubber pad is provided on the clamping plate; Furthermore, the circular hole in the steering housing penetrates the clamping platform.

[0004] The beneficial effects of the present invention are: The present invention realizes flexible multi-angle steering of the clamping assembly relative to the gripping rod through the coordinated action of components such as the knob, worm gear, transmission rod, driving gear, connecting shaft, and steering gear. This enables the clamping head to be adjusted in multiple directions and angles over a wide range, accurately adapting to the needs of clamping pathological tissues at different locations and angles in the digestive tract. In the complex anatomical structure of the stomach, such as the gastric angle and gastric antrum, the traction forceps can easily adjust the clamping head to the appropriate angle when lesions occur, avoiding operational difficulties caused by inconvenient steering, and greatly improving the accuracy and flexibility of surgical operations. At the same time, the four clamping plates arranged in an array can clamp the diseased tissue from four directions respectively, which improves the stability of clamping. At the same time, by setting rubber pads on the clamping plates, the friction between the clamping plates and the tissue is greatly increased, effectively preventing the tissue from slipping during the clamping process, and avoiding complications such as polyps falling off and bleeding due to loose clamping during the resection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0006] Figure 1 This is a schematic diagram of the overall structure of a multi-directional auxiliary traction forceps for digestive endoscopy; Figure 2 This is a front cross-sectional view of a multi-directional auxiliary traction forceps for digestive endoscopy; Figure 3 This is a schematic diagram of the steering housing structure of a multi-directional auxiliary traction forceps for digestive endoscopy; Figure 4 This is a schematic diagram of the worm structure of a multi-directional auxiliary traction forceps for digestive endoscopy; Figure 5 This is a schematic diagram of the structure of a gripping component of a multi-directional auxiliary traction forceps for digestive endoscopy; In the accompanying drawings, the components represented by the reference numerals are as follows: 1-steering assembly, 101-knob, 102-worm gear, 103-worm, 104-transmission rod, 105-driving gear, 106-connecting shaft, 107-grip, 108-steering groove, 109-round head, 110-steering shaft, 111-steering gear, 2-clamping assembly, 201-steering housing, 202-clamping platform, 203-clamping groove, 204-clamping shaft, 205-telescopic motor, 206-telescopic rod, 207-control lever, 208-telescopic base, 209-telescopic support, 210-side rod, 211-clamping connecting rod, 212-clamping plate. DETAILED DESCRIPTION

[0007] The present invention discloses a multi-directional auxiliary traction forceps for digestive endoscopy, comprising: a steering assembly 1, a clamping assembly 2; the front end of the steering assembly 1 is rotatably connected to the clamping assembly 2; the steering assembly 1 includes a knob 101, a worm gear 102, a worm 103, a transmission rod 104, a driving gear 105, a connecting shaft 106, a gripping rod 107, a steering groove 108, a round head 109, a steering shaft 110, and a steering gear 111; the gripping rod 107 is internally rotatably connected to the connecting shaft 106, and a hole is provided at the rear end to be rotatably connected to the transmission rod 104, steering grooves 108 are symmetrically provided on both sides of the front end; a knob 101 is provided at the rear end of the transmission rod 104, and a worm 103 is provided at the front end; a driving gear 105 is provided in the middle of the connecting shaft 106, and a worm wheel 102 is provided on one side to engage with the worm 103; the front end of the round head 109 is fixedly connected to the clamping component 2, and a steering shaft 110 is provided at the rear end to be rotatably connected to the steering groove 108, and a steering gear 111 is provided on the outside to engage with the driving gear 105; flexible steering of the clamping component 2 at multiple angles relative to the gripping rod 107 is realized.

[0008] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Example 1

[0009] As attached Figure 1-3 5. The front end of the steering assembly 1 is rotatably connected to the clamping assembly 2; the steering assembly 1 includes a knob 101, a worm gear 102, a worm 103, a transmission rod 104, a driving gear 105, a connecting shaft 106, a gripping rod 107, a steering groove 108, a round head 109, a steering shaft 110, and a steering gear 111; the gripping rod 107 is internally rotatably connected to the connecting shaft 106, and a hole is provided at the rear end to rotatably connect to the transmission rod 104, and steering grooves 108 are symmetrically provided on both sides of the front end; the transmission rod 104 is provided with a knob 101 at the rear end and a worm 103 at the front end; the connecting shaft 10 A driving gear 105 is provided in the middle, and a worm wheel 102 is provided on one side to engage with the worm 103; the front end of the round head 109 is fixedly connected to the clamping assembly 2, and the rear end is provided with a steering shaft 110 to be rotatably connected to the steering groove 108, and a steering gear 111 is provided on the outside to engage with the driving gear 105; the steering gear 111 is a residual gear, which is arranged 180 degrees around the round head 109 and is arranged perpendicular to the steering shaft 110; grooves are provided on both sides of the steering groove 108 at the front end of the grip 107 for the round head 109 to turn; the connecting shaft 106 is fixedly connected to the driving gear 105 and the worm wheel 102; In this embodiment, the working principle of the steering assembly 1 is as follows: when the direction of the clamping assembly 2 needs to be adjusted, the medical staff rotates the knob 101 at the rear end of the grip 107; the rotation of the knob 101 drives the transmission rod 104 connected thereto to rotate, and the worm 103 at the front end of the transmission rod 104 rotates accordingly; since the worm 103 is meshed with the worm wheel 102 on the connecting shaft 106, the rotation of the worm 103 causes the worm wheel 102 to rotate; the driving gear 105 in the middle of the connecting shaft 106 moves with the connecting shaft 106, and the driving gear 105 and the steering gear 105 on the outer side of the round head 109 are rotated. The gears 111 are meshed with each other; when the driving gear 105 rotates, the steering gear 111 is driven to rotate through the gear meshing action, thereby causing the round head 109 to rotate around the steering shaft 110 in the steering groove 108 at the front end of the handle 107; the grooves on both sides of the steering groove 108 provide a limit and guide for the rotation of the round head 109, ensuring that the rotation of the round head 109 is stable and within a predetermined range, thereby driving the clamping assembly 2 fixed to the front end to achieve multi-directional steering, and can accurately adjust the direction of the clamping head to meet the needs of clamping diseased tissues at different locations in the digestive tract; In this embodiment, when the device is in use, the angle of the gripping rod 107 is rotated in conjunction with the angle adjustment of the steering assembly 1 to achieve universal angle adjustment of the front-end clamping assembly 2. This allows for extremely precise angle control of the clamping assembly 2. When clamping minimally lesioned tissue, the steering accuracy of the clamping head can be controlled within a very small range, ensuring accurate approach and grasping of the target tissue, effectively avoiding misoperation of surrounding normal tissue due to steering deviation, and greatly improving surgical accuracy. At the same time, through the self-locking property of the worm wheel 102 and the worm 103, the front end clamping assembly 2 can remain stable after the angle adjustment is completed, so that the clamping assembly 2 will not experience unstable phenomena such as shaking and displacement during the entire steering process. During a long surgical operation, even if it is disturbed by external forces such as gastrointestinal peristalsis, it can still maintain a stable steering posture, ensuring the continuity and safety of the operation. The doctor can focus on the surgical operation without worrying about the reliability of the steering assembly 1. Example 2

[0010] As attached Figure 1-4 As shown, the clamping assembly 2 includes a steering housing 201, a clamping platform 202, a clamping groove 203, a clamping shaft 204, a telescopic motor 205, a telescopic rod 206, a control rod 207, a telescopic base 208, a telescopic support 209, a side rod 210, a clamping link 211, and a clamping plate 212; the rear end of the steering housing 201 is fixedly connected to the round head 109, the interior is set to be hollow, the telescopic motor 205 is set at the bottom, and the clamping platform 202 is set at the front end; the telescopic rod 206 at the front end of the telescopic motor 205 is fixedly connected to the control rod 207; the front end of the control rod 207 is set to be A cross-shaped telescopic base 208 is provided; four telescopic supports 209 are arranged in an array on the telescopic base 208; the telescopic base 208 is rotatably connected to one end of a side rod 210; the other end of the side rod 210 is rotatably connected to the middle of a clamp connecting rod 211; four clamp slots 203 are arranged in an array on the clamping platform 202; a clamp rotating shaft 204 is provided in the clamp slot 203 and is rotatably connected to the front end of the clamp connecting rod 211; a clamping plate 212 is provided at the front end of the clamp connecting rod 211; a rubber pad is provided on the clamping plate 212; the circular hole in the steering housing 201 penetrates the clamping platform 202; In this embodiment, the working principle of the clamping assembly 2 is as follows: when it is necessary to clamp tissue, the telescopic motor 205 located at the bottom of the steering housing 201 is started, driving the telescopic rod 206 to retract backward; the control rod 207 fixedly connected to the front end of the telescopic rod 206 moves forward accordingly, and the cross-shaped telescopic base 208 at the front end of the control rod 207 drives the four telescopic supports 209 arranged in an array thereon forward; one end of the side rod 210 is rotatably connected to the telescopic base 208, and as the telescopic base 208 moves, the side rod 210 will rotate around the connection point with the telescopic base 208; the other end of the side rod 210 is rotatably connected to the middle part of the clamp link 211, and the rotation of the side rod 210 will drive the clamp link 211 to move. The front end of the clamp link 211 is connected to the clamp plate 212 via the clamp shaft 204 in the clamp slot 203 arranged in an array on the clamping platform 202. The movement of the clamp link 211 causes the clamp plate 212 to rotate around the clamp shaft 204, realizing the closing action of the clamp plate 212, thereby clamping the tissue. The rubber pad provided on the clamp plate 212 can increase the friction force, making the clamping more secure. When the tissue needs to be released, the telescopic motor 205 reverses, the telescopic rod 206 extends, the control rod 207, the telescopic base 208, the telescopic support 209 and the side rod 210 and other components move in the opposite direction, and the clamp connecting rod 211 drives the clamping plate 212 to rotate in the opposite direction around the clamp rotating shaft 204, and the clamping plate 212 opens to complete the release of the tissue. This clamping and releasing action through the linkage of multiple components can flexibly control the opening and closing of the clamping plate 212, and the telescopic motor 205 can accurately adjust the clamping range to meet the clamping needs of tissues of different sizes. In this embodiment, a pressure sensor can be provided on the clamping plate 212, and the clamping force can be controlled within a certain range by a controller during clamping, thereby preventing mechanical damage to the tissue caused by excessive clamping force, such as mucosal tearing and bleeding, and helping to improve the safety and success rate of the operation. In this embodiment, during digestive endoscopic surgery, the shape and position of the diseased tissue are often irregular; the clamping component 2 clamps from four directions, which can form a relatively stable clamping space and fix the tissue from multiple angles; for some polyp tissues with irregular shapes and uneven surfaces, clamping in four directions can better fit the shape of the tissue, making it less likely for the tissue to rotate or shift during the clamping process, effectively preventing the accidental shedding of tissue during the surgical operation, and ensuring the smooth progress of the operation; in delicate digestive endoscopic surgery, such as biopsy of tiny lesions or treatment of lesions near important anatomical structures, precise control of the position and posture of the tissue is crucial. The four-directional clamping component 2 allows doctors to adjust the position of the tissue more accurately, placing it in the optimal position for surgical operation. In summary, the present invention achieves flexible multi-angle steering of the clamping assembly 2 relative to the gripping rod 107 through the coordinated action of the knob 101, the worm gear 102, the worm 103, the transmission rod 104, the driving gear 105, the connecting shaft 106, and the steering gear 111. This enables the clamping head to be adjusted in multiple directions and angles over a wide range, accurately adapting to the needs of clamping pathological tissues at different locations and angles in the digestive tract. In the complex anatomical structure of the stomach, such as when lesions occur in the gastric angle and gastric antrum, the traction forceps can easily adjust the clamping head to the appropriate angle, avoiding operational difficulties caused by inconvenient steering, and greatly improving the accuracy and flexibility of surgical operations. At the same time, the four clamping plates 212 arranged in an array can clamp the diseased tissue from four directions respectively, thereby improving the stability of clamping. At the same time, by arranging rubber pads on the clamping plates 212, the friction between the clamping plates 212 and the tissue is greatly increased, effectively preventing the tissue from slipping during the clamping process, and avoiding complications such as polyps falling off and bleeding caused by loose clamping during the resection process.

[0011] 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 details in detail, nor do they limit the invention to only the specific implementation methods described.

Claims

1. A multi-directional auxiliary traction forceps for digestive endoscopy, characterized in that: include: Steering assembly, gripping assembly; The front end of the steering assembly is rotatably connected to the clamping assembly; The steering assembly includes a knob, a worm wheel, a worm, a transmission rod, a driving gear, a coupling, a grip, a steering groove, a round head, a steering shaft, and a steering gear; the grip is internally connected to the coupling, a hole is provided at the rear end for rotational connection to the transmission rod, and steering grooves are symmetrically arranged on both sides of the front end; a knob is provided at the rear end of the transmission rod, and a worm is provided at the front end; a driving gear is provided in the middle of the coupling, and a worm wheel is provided on one side for meshing with the worm; the front end of the round head is fixedly connected to the clamping assembly, the rear end is provided with a steering shaft for rotational connection to the steering groove, and a steering gear is provided on the outside for meshing with the driving gear.

2. A multi-directional auxiliary traction forceps for digestive endoscopy according to claim 1, characterized in that: The steering gear is a residual gear, which is arranged 180 degrees around the round head and is perpendicular to the steering shaft.

3. The multi-directional auxiliary traction forceps for digestive endoscopy according to claim 1, characterized in that: Grooves are arranged on both sides of the steering groove at the front end of the grip rod for the round head to turn.

4. The multi-directional auxiliary traction forceps for digestive endoscopy according to claim 1, characterized in that: The coupling shaft is fixedly connected to the driving gear and the worm gear.

5. The multi-directional auxiliary traction forceps for digestive endoscopy according to claim 1, characterized in that: The clamping assembly includes a steering shell, a clamping platform, a clamping slot, a clamping shaft, a telescopic motor, a telescopic rod, a control rod, a telescopic base, a telescopic support, a side rod, a clamping link, and a clamping plate; the rear end of the steering shell is fixedly connected to the round head, the interior is set to be hollow, a telescopic motor is set at the bottom, and a clamping platform is set at the front end; the telescopic rod at the front end of the telescopic motor is fixedly connected to the control rod; a cross-shaped telescopic base is set at the front end of the control rod; four telescopic supports are arranged in an array on the telescopic base; the telescopic base is rotatably connected to one end of the side rod; the other end of the side rod is rotatably connected to the middle part of the clamping link; four clamping slots are arranged in an array on the clamping platform; a clamping shaft is set in the clamping slot and rotatably connected to the front end of the clamping link; a clamping plate is set at the front end of the clamping link.

6. The multi-directional auxiliary traction forceps for digestive endoscopy according to claim 5, characterized in that: A rubber pad is provided on the clamping plate.

7. The multi-directional auxiliary traction forceps for digestive endoscopy according to claim 5, characterized in that: The circular hole in the steering housing penetrates the clamping platform.

Images