Traction device for endoscopic electro-static discharge (ESD) operation

Abstract

The invention discloses a traction device for endoscopic ESD (Electro-Static Discharge) surgery, which comprises a shell, a supporting mechanism and a control box are arranged on the shell, the supporting mechanism is used for lifting the control box, a concave wheel is arranged on the control box, and the concave wheel is used for winding a traction wire; the supporting mechanism comprises a cover plate and a supporting plate, the supporting mechanism adjusts the position of the control box by controlling the relative position and the relative angle of the cover plate and the supporting plate, the control box pulls the pull wire through a concave wheel, an adjusting assembly and a clamping assembly are arranged in the control box, and the adjusting assembly winds and unwinds the pull wire by adjusting rotation of the concave wheel. The clamping assembly is used for locking the concave wheel after rotation adjustment, a fixing pile is arranged at the top end of one side of the concave wheel and comprises a pile cap and a pile body, and the pile cap and the pile body are used for clamping the pull wire. The external traction device is adopted to replace a human hand to hold the traction line, and the traction degree, force and direction can be conveniently controlled, so that flexible adjustment can be performed according to operation requirements in an operation, and the traction operation in the operation is more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of traction devices for endoscopic surgery, and in particular to a traction device for endoscopic ESD surgery. Background Art

[0002] With the development of medical technology and the improvement of social health literacy, people are paying more and more attention to health issues, and more and more people are beginning to undergo gastrointestinal endoscopy examinations. Digestive endoscopy can detect early lesions through high-definition magnification, staining and other technologies, and can also perform precise endoscopic resection of lesions.

[0003] After more than 10 years of development, endoscopic resection technology has evolved from simple endoscopic mucosal resection (EMR) to endoscopic submucosal dissection (ESD), endoscopic submucosal tumor excision (ESE) and endoscopic full-thickness resection (EFTR). In particular, ESD surgery has become the standard surgical method for early digestive tract tumors. However, ESD technology has high requirements and there are complications such as bleeding, perforation, stenosis and postoperative infection. Traditional ESD and its derivative surgeries require the use of a transparent cap at the front end of the endoscope to expose the submucosal layer or tumor capsule, but the endoscope cannot approach difficult areas, and it is often difficult to expose them clearly with only the transparent cap. Traction technology can solve this problem to a certain extent, that is, with the help of external force, the lesions can be fully exposed to facilitate endoscopic surgery.

[0004] After searching, the Chinese invention patent with the announcement number CN114469266B discloses a metal clamp dental floss integrated traction forceps and method for assisting endoscopic submucosal dissection. The traction forceps include controller I, guide wire I, metal clamp I, controller II, guide wire II, metal clamp II, sheath and dental floss. Controller I is connected to the control end of metal clamp I through guide wire I, and controller II is connected to the control end of metal clamp II through guide wire II. Guide wire I and guide wire II are jointly sheathed. This application uses a double-head clamp to pre-clamp the dental floss and enter synchronously, and completes traction under endoscopy. However, the traction degree and traction strength of the device on the mucosa must be controlled by the physician assistant or nurse, but it is difficult to maintain a constant and uniform traction force, and the slight shaking or position change of the hand will affect the direction of the traction line, so it is impossible to accurately control the direction and range of traction, which makes the traction operation during surgery inconvenient and easily leads to surgical failure or complications. Summary of the invention

[0005] In view of the above-mentioned prior art, the invention is to provide a traction device for endoscopic ESD surgery, and the main technical problem to be solved is how to ensure the convenience of traction operation during surgery.

[0006] To achieve the above object, the technical solution of the embodiment of the invention is implemented as follows:

[0007] A traction device for endoscopic ESD surgery comprises a shell, a support mechanism and a control box are arranged on the shell, the support mechanism is used to lift the control box, the control box is provided with a concave wheel, and the concave wheel is used to wind a traction line;

[0008] The supporting mechanism includes a cover plate and a support plate. The supporting mechanism adjusts the position of the control box by controlling the relative position and relative angle of the cover plate and the support plate. The control box pulls the traction line through the cam. An adjusting component and a locking component are provided inside the control box. The adjusting component retracts and releases the traction line by adjusting the rotation of the cam. The locking component is used to lock the cam after rotation adjustment. A fixed pile is provided at the top of one side of the cam. The fixed pile includes a pile cap and a pile body. The pile cap and the pile body are used to clamp the traction line. A fixing ring is fixedly connected to one side of the cam on the control box, and the fixing ring is used to guide the traction line.

[0009] Furthermore, the cover plate is rotatably connected to the top of one side of the shell through the damping shaft, a threaded sleeve is fixedly connected to the top of the inner side surface of the cover plate, the internal thread of the threaded sleeve is connected to a bolt, a through groove is opened on the inner side of the support plate, the bolt passes through the support plate at the through groove, and the control box is fixedly connected to one end of the support plate.

[0010] Furthermore, a rotating rod is rotatably connected to the inner wall of one side of the control box, a circular opening is opened on the other side of the control box, one end of the rotating rod extends to the outside of the control box at the circular opening, the cam is fixedly connected to the end of the rotating rod outside the control box, and the rotating rod is connected to a worm gear via a key on the outside of the rod body inside the control box.

[0011] Furthermore, a circular through hole is opened at the top of one side of the control box, and the control box is rotatably connected to a rotating shaft at the circular through hole. The rotating shaft is connected to a driving wheel through a key outside the rod body inside the control box, and the adjustment component includes a knob, which is fixedly connected to one end of the rotating shaft outside the control box.

[0012] Furthermore, a worm is rotatably connected at the middle between the inner walls on both sides of the control box, the worm is meshed with the worm wheel, and a driven wheel is connected to the outer end of the worm body through a key, the driving wheel is meshed with the driven wheel, and the diameter of the driving wheel is smaller than the diameter of the driven wheel.

[0013] Furthermore, a telescopic rod is fixedly connected to the top of the inner wall on the other side of the shell, a spring is sleeved on the outside of the telescopic rod, and a face gear is fixedly connected to the end of the telescopic rod and the rotating shaft that are close to each other. The outside of the two face gears that are close to each other are provided with gear teeth that mesh with each other, and the telescopic rod is in the shape of a regular hexagonal prism.

[0014] Furthermore, a strip opening is provided at the top of the control box above the telescopic rod, and a connecting rod is slidably connected to the control box at the strip opening. One end of the connecting rod inside the control box is fixedly connected to the face gear on the telescopic rod, and the locking assembly includes a toggle knob, which is fixedly connected to the top of the connecting rod.

[0015] Furthermore, a notch is provided at the top of one side of the concave wheel, the pile body is fixedly connected to the concave wheel, a fixing groove is provided on the pile body, a plurality of spring sheets are fixedly connected to the pile body in the fixing groove, one end of the spring sheet is fixedly connected to a fixed shaft, the pile cap is fixedly connected to one end of the fixed shaft, and a slope is provided on the outside of the side where the pile cap and the pile body are close to each other.

[0016] Furthermore, gaskets are fixedly connected to the four outer corners of the bottom end of the shell, and the material of the gaskets is rubber.

[0017] The beneficial effects of the invention are:

[0018] 1. After the control box of the device is taken out from the shell, the end of the traction line outside the patient's mouth can be passed through the fixing ring and wrapped around the outside of the cam, and then the end of the traction line is led out from the notch and fixed on the fixing pile, and the traction force and degree of the traction line can be controlled by controlling the rotation of the cam; secondly, by adjusting the relative position and relative angle between the cover plate and the support plate, the position of the control box can be adjusted, and then the direction of the cam pulling the dental floss can be controlled; the present invention adopts an external traction device to replace the human hand to hold the traction line, and can conveniently control the traction degree, force and direction, so it can be flexibly adjusted according to the operation needs during the operation, making the traction operation during the operation more convenient.

[0019] 2. By providing a shell, the shell can provide a folding and storage space for the remaining components of the device, so as to facilitate the carrying and storage of the device, and can also be used as a base for the control box and the concave wheel after the device is fully unfolded, thereby providing sufficient bottom area for the two to ensure the stability of the outer end of the traction line, so that the use of the device can be more convenient;

[0020] 3. By arranging a gasket at the bottom of the shell, the rubber gasket can increase the friction between the shell and the table on which the device is placed, so that the use of the device can be more stable, thereby ensuring the smoothness of the traction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a stereoscopic diagram of a traction device for endoscopic ESD surgery in an unfolded state in Example 1 of the present application;

[0022] Figure 2 It is a front cross-sectional view of a control box of a traction device for endoscopic ESD surgery in Example 1 of the present application;

[0023] Figure 3 A stereoscopic diagram of a concave wheel of a traction device for endoscopic ESD surgery in Example 1 of the present application;

[0024] Figure 4It is an exploded view of a fixing post of a traction device for endoscopic ESD surgery in Example 1 of the present application;

[0025] Figure 5 It is a cross-sectional view of a traction device for endoscopic ESD surgery in a folded state in Example 1 of the present application;

[0026] Figure 6 This is a stereoscopic diagram of a traction device for endoscopic ESD surgery in Example 2 of the present application in an unfolded state.

[0027] Description of Figure Numbers:

[0028] Housing 1, bolt 2, threaded sleeve 3, cover plate 4, support plate 5, fixed pile 6, pile cap 601, pile body 602, fixed shaft 603, fixed groove 604, spring sheet 605, slope 606, concave wheel 7, notch 701, knob 8, dial knob 9, control box 10, fixed ring 11, rotating rod 12, driven wheel 13, driving wheel 14, rotating shaft 15, face gear 16, connecting rod 17, telescopic rod 18, spring 19, worm 20, worm wheel 21, gasket 22. DETAILED DESCRIPTION

[0029] The invention technical solution is further described in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the invention. The terms used in the specification of the invention herein are only for the purpose of describing specific embodiments and are not intended to limit the invention.

[0030] Example 1

[0031] Refer to the attached Figure 1-4 The present application provides a traction device for endoscopic ESD surgery, including a housing 1, a support mechanism and a control box 10 are provided on the housing 1, the support mechanism is used to lift the control box 10, and a concave wheel 7 is provided on the control box 10, and the concave wheel 7 is used to wind a traction line, so as to achieve the effect of pulling the traction line;

[0032] The support mechanism includes a cover plate 4 and a support plate 5. The support mechanism adjusts the position of the control box 10 by controlling the relative position and relative angle of the cover plate 4 and the support plate 5. The control box 10 is on the support plate 5, so the position and angle of the latter can determine the pulling angle of the cam wheel 7 on the control box 10 to the traction line, and then control the traction angle of the traction line. The control box 10 pulls the traction line through the cam wheel 7. The control box 10 is provided with an adjusting component and a locking component inside. The adjusting component retracts and releases the traction line by adjusting the rotation of the cam wheel 7, so as to facilitate the control of the traction degree and traction strength of the traction line. The locking component is used to After the cam wheel 7 is rotated and adjusted, it is locked to ensure the stability of the traction. A fixed pile 6 is provided at the top of one side of the cam wheel 7. The fixed pile 6 includes a pile cap 601 and a pile body 602. The pile cap 601 and the pile body 602 are used to clamp the traction line to ensure the stability of the traction line after it is wound on the fixed pile 6, and to ensure that when the cam wheel 7 is rotated to adjust the traction line, the traction line will not loosen and the traction condition cannot be accurately adjusted. A fixed ring 11 is fixedly connected to one side of the cam wheel 7 on the control box 10. The fixed ring 11 is used to guide the traction line, so that the process of retracting and releasing the traction line can be smoother.

[0033] Preferably, the cover plate 4 is rotatably connected to the top of one side of the outer shell 1 through the damping shaft, a threaded sleeve 3 is fixedly connected to the top of the inner side surface of the cover plate 4, the internal thread of the threaded sleeve 3 is connected to the bolt 2, a through groove is opened on the inner side of the support plate 5, the bolt 2 passes through the support plate 5 at the through groove, and the control box 10 is fixedly connected to one end of the support plate 5. By twisting the bolt 2, it can cooperate with the threaded sleeve 3 to clamp the support plate 5, thereby achieving its fixation after position adjustment.

[0034] When ESD is being performed, the device can be placed next to the patient, then the cover plate 4 can be opened, and the support plate 5 can be moved or toggled after the bolts 2 are loosened, so as to adjust the relative angle and relative position between the support plate 5 and the cover plate 4. After the adjustment is completed, the bolts 2 can be tightened to fix the two, thereby completing the position adjustment of the control box 10;

[0035] Then the traction wire can be pulled so that one end of the traction wire outside the patient's mouth is at the control box 10. After passing the traction wire through the fixing ring 11, it is wrapped around the outside of the cam 7, and the end of the traction wire can be led out from the notch 701 on the cam 7, and then wrapped around the fixing pile 6.

[0036] Preferably, a notch 701 is provided at the top of one side of the cam 7, and the end of the traction line wound on the cam 7 can be led out from the notch 701 so as to wind the end onto the fixed pile 6. The pile body 602 is fixedly connected to the cam 7, and a fixing groove 604 is provided on the pile body 602. The pile body 602 is fixedly connected to a plurality of spring sheets 605 in the fixing groove 604, and one end of the spring sheet 605 is fixedly connected to a fixed shaft 603. The pile cap 601 is fixedly connected to one end of the fixed shaft 603, and a slope 606 is provided on the outside of the side where the pile cap 601 and the pile body 602 are close to each other.

[0037] When the traction line is wound around the fixed pile 6, since the traction line is relatively thin and the pile cap 601 and the pile body 602 are close to each other on both sides thereof, the traction line wound around the fixed pile 6 can enter between the pile cap 601 and the pile body 602. Since the pile cap 601 will always remain in close contact with the pile body 602 under the elastic force of the spring sheet 605, the two will clamp the traction line so that it can be firmly wound around the cam 7.

[0038] Preferably, a rotating rod 12 is rotatably connected to the inner wall of one side of the control box 10, a circular opening is provided on the other side of the control box 10, one end of the rotating rod 12 extends to the outside of the control box 10 at the circular opening, the cam 7 is fixedly connected to the end of the rotating rod 12 outside the control box 10, and the rotating rod 12 is connected to the worm gear 21 via a key outside the rod body in the control box 10. A circular through hole is provided at the top end of one side of the control box 10, the control box 10 is rotatably connected to a rotating shaft 15 at the circular through hole, and the rotating shaft 15 is connected to a driving wheel 14 via a key outside the rod body in the control box 10, and the adjustment component includes a knob 8, and the knob 8 is fixedly connected to the end of the rotating shaft 15 outside the control box 10. A worm 20 is rotatably connected at the middle between the inner walls on both sides of the control box 10, and the worm 20 is meshed with a worm wheel 21. A driven wheel 13 is connected to the outer end of the rod body of the worm 20 through a key, and a driving wheel 14 is meshed with the driven wheel 13. The diameter of the driving wheel 14 is smaller than the diameter of the driven wheel 13.

[0039] In this case, the concave wheel 7 can pull the traction line, thereby replacing the behavior of holding the traction line by human hands, and the position of the concave wheel 7 determines the traction direction brought by the traction line; in addition, when it is necessary to adjust the traction force and traction degree of the traction line, the dial knob 9 can be pushed away from the knob 8 to adjust the two face gears 16 to separate from each other, and then the knob 8 can be twisted to rotate, and the knob 8 drives the driving wheel 14 to rotate through the rotating shaft 15, and the driving wheel 14 drives the worm 20 to rotate through the driven wheel 13, and the worm 20 drives the rotating rod 12 to rotate through the worm wheel 21, so that the concave wheel 7 can be rotated. Therefore, the traction force and traction degree of the traction line can be controlled by using the concave wheel 7 to reel in and unreel the traction line;

[0040] Since the transmission between the worm 20 and the worm wheel 21 has a reverse self-locking effect, it can ensure that the cam wheel 7 will not rotate further after adjustment, thereby maintaining the stability of the traction line.

[0041] Preferably, a telescopic rod 18 is fixedly connected to the top of the inner wall on the other side of the shell 1, a spring 19 is sleeved on the outside of the telescopic rod 18, and a face gear 16 is fixedly connected to the end of the telescopic rod 18 and the rotating shaft 15 that are close to each other. The outside of the two face gears 16 that are close to each other are provided with gear teeth that mesh with each other, and the telescopic rod 18 is in the shape of a regular hexagonal prism.

[0042] Preferably, a strip opening is provided at the top of the control box 10 above the telescopic rod 18, and a connecting rod 17 is slidably connected to the control box 10 at the strip opening. One end of the connecting rod 17 inside the control box 10 is fixedly connected to a face gear 16 on the telescopic rod 18, and the locking assembly includes a toggle knob 9, which is fixedly connected to the top of the connecting rod 17.

[0043] After the state of the traction line is adjusted appropriately, the knob 9 can be loosened. At this time, the spring 19 can push the face gear 16 at one end thereof through its own elastic force and make it mesh with the other face gear 16. In this state, the rotation of the rotating shaft 15 can be restricted so that the knob 8 cannot be rotated further.

[0044] When the operation is completed, the traction line can be removed from the fixing pile 6 and the cam 7 in turn, and then the traction line can be pulled to separate it from the device. After loosening the bolt 2, the support plate 5 can be stored and merged with the cover plate 4. Finally, the cover plate 4 is closed, and the cam 7 and the control box 10 can be put into the housing 1.

[0045] Example 2

[0046] Refer to the attached Figure 5 The present application provides a traction device for endoscopic ESD surgery. Compared with Example 1, in order to ensure the smoothness of the traction process, gaskets 22 are fixedly connected to the four outer corners of the bottom end of the shell 1, and the material of the gaskets 22 is rubber.

[0047] The rubber gasket 22 can increase the friction between the housing 1 and the surface on which the device is placed, thereby making the placement of the device more stable, thereby maintaining the stability of the traction process.

[0048] The above are only specific embodiments of the invention, but the protection scope of the invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the invention should be included in the protection scope of the invention. The protection scope of the invention should be based on the protection scope of the claims.

Claims

1. A traction device for endoscopic ESD surgery, comprising a housing (1), characterized in that: The housing (1) is provided with a support mechanism and a control box (10), the support mechanism is used to lift the control box (10), the control box (10) is provided with a concave wheel (7), and the concave wheel (7) is used to wind a traction line; The support mechanism comprises a cover plate (4) and a support plate (5). The support mechanism adjusts the position of the control box (10) by controlling the relative position and relative angle of the cover plate (4) and the support plate (5). The control box (10) pulls the traction line through the cam (7). An adjusting component and a locking component are provided inside the control box (10). The adjusting component retracts and releases the traction line by adjusting the rotation of the cam (7). The locking component is used for locking the cam (7) after the rotation is adjusted. A fixing pile (6) is provided at the top end of one side of the cam (7). The fixing pile (6) comprises a pile cap (601) and a pile body (602). The pile cap (601) and the pile body (602) are used for clamping the traction line. A fixing ring (11) is fixedly connected to one side of the cam (7) on the control box (10). The fixing ring (11) is used for guiding the traction line.

2. The traction device for endoscopic ESD surgery according to claim 1, characterized in that: The cover plate (4) is rotatably connected to the top of one side of the housing (1) through a damping shaft, a threaded sleeve (3) is fixedly connected to the top of the inner side surface of the cover plate (4), the inner thread of the threaded sleeve (3) is connected to a bolt (2), a through groove is provided on the inner side of the support plate (5), the bolt (2) passes through the support plate (5) at the through groove, and the control box (10) is fixedly connected to one end of the support plate (5).

3. The traction device for endoscopic ESD surgery according to claim 2, characterized in that: A rotating rod (12) is rotatably connected to an inner wall of one side of the control box (10); a circular opening is provided on the other side of the control box (10); one end of the rotating rod (12) extends to the outside of the control box (10) at the circular opening; the cam (7) is fixedly connected to one end of the rotating rod (12) outside the control box (10); and the rotating rod (12) is connected to a worm gear (21) via a key outside the rod body of the rotating rod (12) inside the control box (10).

4. The traction device for endoscopic ESD surgery according to claim 3, characterized in that: A circular through hole is provided at the top end of one side of the control box (10); a rotating shaft (15) is rotatably connected to the circular through hole of the control box (10); the rotating shaft (15) is connected to a driving wheel (14) via a key outside a rod body in the control box (10); the adjusting assembly comprises a knob (8); the knob (8) is fixedly connected to one end of the rotating shaft (15) outside the control box (10).

5. The traction device for endoscopic ESD surgery according to claim 4, characterized in that: A worm (20) is rotatably connected at the middle part between the inner walls on both sides of the control box (10), the worm (20) is meshed with a worm wheel (21), one end of the outer rod body of the worm (20) is connected to a driven wheel (13) via a key, the driving wheel (14) is meshed with the driven wheel (13), and the diameter of the driving wheel (14) is smaller than the diameter of the driven wheel (13).

6. The traction device for endoscopic ESD surgery according to claim 5, characterized in that: A telescopic rod (18) is fixedly connected to the top of the inner wall of the other side of the housing (1), a spring (19) is sleeved on the outside of the telescopic rod (18), a face gear (16) is fixedly connected to the end of the telescopic rod (18) and the rotating shaft (15) close to each other, and gear teeth that mesh with each other are provided on the outside of the two face gears (16) close to each other, and the telescopic rod (18) is in the shape of a regular hexagonal prism.

7. The traction device for endoscopic ESD surgery according to claim 6, characterized in that: The top end of the control box (10) is provided with a strip opening above the telescopic rod (18); the control box (10) is slidably connected to a connecting rod (17) at the strip opening; one end of the connecting rod (17) located inside the control box (10) is fixedly connected to a face gear (16) located on the telescopic rod (18); the locking assembly comprises a toggle knob (9) fixedly connected to the top end of the connecting rod (17).

8. The traction device for endoscopic ESD surgery according to claim 7, characterized in that: A notch (701) is provided at the top of one side of the cam wheel (7); the pile body (602) is fixedly connected to the cam wheel (7); a fixing groove (604) is provided on the pile body (602); a plurality of spring sheets (605) are fixedly connected to the pile body (602) in the fixing groove (604); one end of the spring sheet (605) is fixedly connected to a fixing shaft (603); the pile cap (601) is fixedly connected to one end of the fixing shaft (603); and a slope surface (606) is provided on the outside of the pile cap (601) and the pile body (602) where they are close to each other.

9. The traction device for endoscopic ESD surgery according to claim 1, characterized in that: Gaskets (22) are fixedly connected to the four outer corners of the bottom end of the housing (1), and the material of the gaskets (22) is rubber.

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