Elastic rope ligation device used under enteroscope

Abstract

The utility model discloses an elastic rope ligation device used under an enteroscope, and belongs to the technical field of medical instruments. A negative pressure adsorption mechanism; a movement driving mechanism; a tensioning drive mechanism; a control mechanism; the control mechanism is divided into two parts, one part is handheld, the other part is connected to the enteroscope in a sleeved mode, the two parts of the control mechanism are controlled wirelessly, and compared with the prior art, due to the fact that the operation of connecting a stay wire is omitted, the comfort of a patient in the using process is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical instruments, and in particular relates to an elastic rope ligation device used under colonoscopy. Background Art

[0002] Hemorrhoids are a mass of veins formed by congestion, dilation and tortuosity of the venous plexus around the lower rectum and anal canal. Common symptoms include bloody stools, anal pain and prolapse.

[0003] Traditional methods for treating hemorrhoids include medication and surgery, but they have disadvantages such as slow recovery and many complications.

[0004] In recent years, with the development of endoscopic technology, colonoscopic hemorrhoid treatment has gradually gained attention due to its advantages of minimal invasiveness, rapid recovery and high safety.

[0005] Chinese Patent No. 201620968788.X discloses a colonoscopic hemorrhoid ligation device, which includes a transparent cap that is sleeved on the outside of the colonoscope inspection end and an actuator arranged on the outside. The transparent cap is provided with multiple coil grooves, and elastic coils are arranged in the coil grooves. A connecting pull wire is provided on the actuator. The other end of the connecting pull wire passes through several elastic coils back and forth in sequence and forms a structure with the elastic coils that can pull the elastic coils forward. When in use, the connecting pull wire is pulled by the actuator to prompt several elastic coils to move forward one by one and be ligated on the hemorrhoids to achieve the therapeutic effect of blood blocking necrosis.

[0006] The inventors of the present application have discovered that the above-mentioned colonoscopic hemorrhoid ligation device needs to be pulled by a connecting pull wire to achieve ligation of the elastic coil. The connecting pull wire may cause discomfort to the patient during operation, thereby reducing the comfort of using the colonoscopic hemorrhoid ligation device. Utility Model Content

[0007] In order to solve the problems raised in the above background technology, the utility model provides an elastic rope ligation device for use under colonoscopy, which has the characteristic of improving the comfort of patients when using it.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an elastic rope ligation device for use under colonoscopy, comprising:

[0009] A colonoscope, wherein an inner sleeve is fixedly sleeved on the inspection end of the colonoscope, an elastic rope is provided on the outer surface of the inner sleeve close to the inspection end, and an outer sleeve is provided on the outer surface of the inner sleeve away from the inspection end;

[0010] The negative pressure adsorption mechanism is provided on the inner sleeve and the elastic rope, so that the inner sleeve, located near the inspection end of the colonoscope, is in a negative pressure state when ligating and in a normal state when not ligating;

[0011] The moving drive mechanism is provided on the inner sleeve and the elastic rope, drives the outer sleeve to move toward the inspection end, pushes the elastic rope out of the inner sleeve so that it is sleeved on the diseased tissue, and drives the outer sleeve to move away from the inspection end and reset;

[0012] The tensioning drive mechanism is provided on the inner sleeve and the elastic rope, and drives the elastic rope to be tightened as the outer sleeve moves;

[0013] The control mechanism is arranged on the inner sleeve and the elastic rope to control the start and stop of the negative pressure adsorption mechanism and the mobile drive mechanism.

[0014] Furthermore, the negative pressure adsorption mechanism includes a plurality of ventilation holes arranged at equal intervals along the circumferential direction on the inner sleeve in the area near the inspection end of the colonoscope, an annular groove arranged inside the outer sleeve, and two sealing rings fixedly connected to the inner walls on both sides of the outer sleeve. The annular groove is connected to the plurality of ventilation holes. During the movement of the outer sleeve, the annular groove will not leave the area of the plurality of ventilation holes. An air pump is fixedly connected to the inner wall of the outer sleeve, and the air outlet end of the air pump passes through the outer sleeve and extends to the outside.

[0015] Furthermore, the mobile drive mechanism includes a first fixed plate fixedly connected to the outer wall of the inner sleeve and located in an annular groove, and a first rack fixedly connected to the inner wall of the outer sleeve. The position setting of the first fixed plate simultaneously meets the forward and backward movement requirements of the outer sleeve. A motor is fixedly connected to the top of the first fixed plate, and the output end of the motor extends through the first fixed plate to the lower end and is fixedly sleeved with a first gear. The first gear is meshed with the first rack.

[0016] Furthermore, the tensioning drive mechanism includes a wire groove opened on the outer sleeve and connected to the annular groove, a fracture opening opened on the elastic rope, a second fixed plate fixed to the outer wall of the inner sleeve and located in the annular groove, and a second rack fixed to the inner wall of the outer sleeve. The position setting of the second fixed plate can simultaneously meet the forward and backward movement requirements of the outer sleeve. The interior of the second fixed plate is connected to a driving shaft through a bearing, one end of the driving shaft is fixedly sleeved with a second gear, and the other end of the driving shaft is fixedly sleeved with a retractable wire drum. The second gear can be meshed with the second rack, one end of the elastic rope extends into the annular groove through the wire groove and is wound around the retractable wire drum. The second rack is arranged in front of the second gear. When the outer sleeve moves toward the inspection end side, it does not mesh with the second gear, and otherwise moves to mesh.

[0017] Furthermore, the control mechanism includes a second switch button fixed to the outer wall of the outer sleeve, a shell and a second battery staggered and fixed to the inner wall of the outer sleeve, and a control ring sleeved outside the elastic rope, the shell interior is staggered and fixed with a second controller and a second wireless communicator, the charging port of the second battery extends through the outer sleeve to the outside, the outer sleeve is threadedly connected with a screw plug at the position of the second battery charging port, the outer wall of the control ring is staggered and fixed with a first switch button and a touch screen, the control ring interior is staggered and fixed with a first controller, a first wireless communicator and a first battery, the charging port of the first battery extends through the control ring to the outside, the second switch button, the second wireless communicator, the air pump and the motor are electrically connected to the second controller, the second switch button, the second controller, the second wireless communicator, the air pump and the motor are electrically connected to the second battery, the first switch button, the touch screen and the first wireless communicator are electrically connected to the first controller, and the first switch button, the touch screen, the first controller and the first wireless communicator are electrically connected to the first battery.

[0018] Furthermore, it also includes a sealing mechanism to seal the wire groove to prevent the intestinal matter from entering the annular groove and affecting the operation of the structure during the inspection process;

[0019] The sealing mechanism includes a cover plate arranged in the wire slot and a rubber pad fixedly connected to the inner wall of the wire slot. The cover plate is slidably connected in the wire slot and is limited by resistance through the rubber pad.

[0020] Furthermore, it also includes a detachable assembly mechanism, which is provided on the outer sleeve and the control ring, so that the control ring and the outer sleeve have a detachable assembly function;

[0021] The detachable mechanism includes a plurality of rubber plug rods arranged at equal intervals along the circumferential direction on the side wall of the outer sleeve close to the control ring, and a plurality of plug grooves fixed at equal intervals along the circumferential direction on the side wall of the control ring close to the outer sleeve. The control ring and the outer sleeve are disassembled and assembled by plugging into or detaching from the plurality of rubber plug rods through the plurality of plug grooves.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. The control mechanism of the utility model is set up in two parts, one part is handheld, and the other part is sleeved on the colonoscope. The two parts of the control mechanism are wirelessly controlled. Compared with the existing technology, the operation of connecting the pull wire is omitted, which improves the comfort of patients when using it.

[0024] 2. The utility model realizes the tying, tightening and breaking of the elastic rope by moving the outer sleeve forward and backward, and has a simple structure, convenient operation and easy use.

[0025] 3. The control ring of the control mechanism of the utility model is fixed to the outer sleeve by plugging the rubber plug rod into the plug groove, which can prevent the control ring from being lost when not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional diagram of the utility model;

[0027] Figure 2 For this utility model Figure 1 Partial vertical section at point A in the middle;

[0028] Figure 3 It is a partial cross-sectional view of the utility model;

[0029] Figure 4 For this utility model Figure 3 Enlarged view of point B in the middle;

[0030] Figure 5 For this utility model Figure 3 Enlarged view of point C in the middle;

[0031] Figure 6 It is a partial vertical cross-sectional view of the utility model;

[0032] Figure 7 For this utility model Figure 6 Enlarged view of point C in the middle;

[0033] In the picture: 1. Colonoscope; 2. Inner sleeve; 3. Elastic cord; 4. Outer sleeve;

[0034] 101. Sealing ring; 102. Annular groove; 103. Ventilation port; 104. Air pump;

[0035] 201, motor; 202, first fixed plate; 203, first gear; 204, first rack;

[0036] 301, wire groove; 302, fracture; 303, drive shaft; 304, retractable wire drum; 305, second fixed plate; 306, second gear; 307, second rack;

[0037] 401, touch screen; 402, first switch button; 403, control ring; 404, first controller;

[0038] 405, first wireless communicator; 406, first battery; 407, housing; 408, second controller;

[0039] 409, second wireless communicator; 410, second battery; 411, screw plug; 412, second switch button;

[0040] 501, cover plate; 502, rubber pad;

[0041] 601. Rubber plug rod; 602. Plug slot. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] Example 1

[0044] An elastic rope ligation device used under colonoscopy, comprising:

[0045] A colonoscope 1, an inner sleeve 2 is fixedly sleeved on the inspection end of the colonoscope 1, an elastic rope 3 is provided on the outer surface of the inner sleeve 2 close to the inspection end, and an outer sleeve 4 is provided on the outer surface of the inner sleeve 2 away from the inspection end;

[0046] The negative pressure adsorption mechanism is provided on the inner sleeve 2 and the elastic rope 3, so that the inner sleeve 2, located near the inspection end of the colonoscope 1, is in a negative pressure state when the ligation is performed and in a normal state when the ligation is not performed;

[0047] The moving drive mechanism is provided on the inner sleeve 2 and the elastic cord 3, drives the outer sleeve 4 to move toward the inspection end, pushes the elastic cord 3 out of the inner sleeve 2 so that it is sleeved on the diseased tissue, and at the same time drives the outer sleeve 4 to move away from the inspection end and reset;

[0048] The tensioning drive mechanism is provided on the inner sleeve 2 and the elastic cord 3, and drives the elastic cord 3 to be tightened as the outer sleeve 4 moves;

[0049] The control mechanism is arranged on the inner sleeve 2 and the elastic rope 3 to control the start and stop of the negative pressure adsorption mechanism and the mobile drive mechanism.

[0050] In this embodiment, see the attached Figure 1-7 Before using the elastic rope ligation device used under colonoscopy, remove the handheld control mechanism;

[0051] When the elastic rope ligation device used under colonoscopy is used, the colonoscope 1 is operated to drive the elastic rope ligation device into the intestine, and the internal situation of the intestine is observed through the colonoscope 1. If lesion tissue is found, the inner sleeve 2 is aimed at the lesion tissue, and the intestinal control mechanism is wirelessly controlled by the handheld control mechanism. The intestinal control mechanism controls the negative pressure adsorption mechanism to start, and the negative pressure adsorption mechanism makes the inner part of the inner sleeve 2 located in the area near the inspection end of the colonoscope 1 present a negative pressure state during ligation, and the lesion tissue is adsorbed and fixed. The intestinal control mechanism controls the mobile drive mechanism to start, and the mobile drive mechanism drives the outer sleeve 4 to move closer to the elastic rope ligation device. The force rope 3 moves in the direction until the set driving time of the mobile driving mechanism is reached. At this time, the elastic rope 3 is separated from the inner sleeve 2 and is ligated on the diseased tissue. The control mechanism in the intestine controls the negative pressure adsorption mechanism to stop, and at the same time controls the mobile driving mechanism to drive the outer sleeve 4 to move away from the elastic rope 3. During the movement of the mobile driving mechanism, the tensioning driving mechanism drives the elastic rope 3 to tighten, and the elastic rope 3 is tightened until the set driving time of the mobile driving mechanism is reached. At this time, the tensioning force of the elastic rope 3 causes the elastic rope 3 to disconnect, completing the ligation of the diseased tissue.

[0052] Specifically, the negative pressure adsorption mechanism includes a plurality of ventilation holes 103 arranged at equal intervals along the circumferential direction on the inner sleeve 2 in the area near the inspection end of the colonoscope 1, an annular groove 102 arranged inside the outer sleeve 4, and two sealing rings 101 fixedly connected to the inner walls on both sides of the outer sleeve 4. The annular groove 102 is connected to the plurality of ventilation holes 103. During the movement of the outer sleeve 4, the annular groove 102 will not separate from the area of the plurality of ventilation holes 103. An air pump 104 is fixedly connected to the inner wall of the outer sleeve 4, and the air outlet end of the air pump 104 passes through the outer sleeve 4 and extends to the outside.

[0053] In this embodiment, see the attached Figure 3-7 The negative pressure adsorption mechanism is started by controlling the air pump 104, and the air pump 104 draws air, so that the annular groove 102, the plurality of vents 103 and the inner area of the inner sleeve 2 located near the inspection end of the colonoscope 1 are in a negative pressure state, thereby achieving negative pressure adsorption;

[0054] The negative pressure adsorption is released by controlling the air pump 104 to stop.

[0055] Specifically, the mobile drive mechanism includes a first fixed plate 202 fixedly connected to the outer wall of the inner sleeve 2 and located in the annular groove 102, and a first rack 204 fixedly connected to the inner wall of the outer sleeve 4. The position setting of the first fixed plate 202 simultaneously meets the forward and backward movement requirements of the outer sleeve 4. The top of the first fixed plate 202 is fixedly connected to the motor 201, and the output end of the motor 201 passes through the first fixed plate 202 and extends to the lower end and is fixedly sleeved with a first gear 203. The first gear 203 is meshed and connected with the first rack 204.

[0056] In this embodiment, see the attached Figure 4The mobile drive mechanism is started by the control motor 201, the motor 201 drives the output end to rotate, the output end of the motor 201 drives the first gear 203 to rotate, the first gear 203 drives the first rack 204 to move during the rotation process, and the first rack 204 drives the outer sleeve 4 to move, thereby realizing mobile drive;

[0057] The outer sleeve 4 is driven to move closer to the elastic cord 3 by the forward rotation of the motor 201;

[0058] The outer sleeve 4 is driven to move away from the elastic cord 3 by the reverse rotation of the motor 201 .

[0059] The second rack 307 is arranged in front of the second gear 306. When the outer sleeve 4 moves toward the inspection end, it does not mesh with the second gear 306.

[0060] In this embodiment, see the attached Figure 2 and 5 The tensioning drive mechanism is driven by the outer sleeve 4 moving in the direction away from the elastic rope 3, driving the second rack 307 to move in the same direction. During the movement, the second rack 307 gradually contacts the second gear 306 and drives the second gear 306 to rotate. The second gear 306 drives the driving shaft 303 to rotate, and the driving shaft 303 drives the reel 304 to rotate. During the rotation of the reel 304, the elastic rope 3 is wound up, causing the elastic rope 3 to generate tension and automatically tighten. When the tension of the elastic rope 3 is too large, it is broken at the breaking point 302.

[0061] Specifically, the control mechanism includes a second switch button 412 fixed to the outer wall of the outer sleeve 4, a housing 407 and a second battery 410 fixed to the inner wall of the outer sleeve 4, and a control ring 403 sleeved on the outside of the elastic cord 3. The housing 407 is staggered and fixed with a second controller 408 and a second wireless communicator 409. The charging port of the second battery 410 extends through the outer sleeve 4 to the outside. A screw plug 411 is threadedly connected to the outer sleeve 4 at the position of the charging port of the second battery 410. The outer wall of the control ring 403 is staggered and fixed with a first switch button 402 and a touch screen 401. The control ring 403 is staggered and fixed with a first controller 404 and a first wireless communicator 409. 05 and first battery 406. The charging port of first battery 406 extends through control ring 403 to the outside. Second switch button 412, second wireless communicator 409, air pump 104, and motor 201 are electrically connected to second controller 408. Second switch button 412, second controller 408, second wireless communicator 409, air pump 104, and motor 201 are electrically connected to second battery 410. First switch button 402, touch screen 401, and first wireless communicator 405 are electrically connected to first controller 404. First switch button 402, touch screen 401, first controller 404, and first wireless communicator 405 are electrically connected to first battery 406.

[0062] In this embodiment, see the attached Figure 1 、 3 , 4, 5 and 6, before using the control mechanism, remove the control ring 403 and start it by pressing the first switch button 402 and the second switch button 412;

[0063] When the control mechanism is in use, medical personnel input control instructions through touch screen 401. Touch screen 401 transmits the control instructions to first controller 404. First controller 404 transmits the control instructions to first wireless communicator 405. First wireless communicator 405 wirelessly transmits the control instructions to second wireless communicator 409. Second wireless communicator 409 transmits the control instructions to second controller 408. Second controller 408 controls the air pump 104 and motor 201 to start or stop according to the control instructions to achieve the above functions.

[0064] Example 2

[0065] This embodiment differs from the first embodiment in that:

[0066] Specifically, it also includes a sealing mechanism to seal the wire groove 301 to prevent the intestinal matter from entering the annular groove 102 and affecting the operation of the structure during the inspection process;

[0067] The sealing mechanism includes a cover plate 501 disposed in the wire slot 301 and a rubber pad 502 fixed to the inner wall of the wire slot 301 . The cover plate 501 is slidably connected in the wire slot 301 and is limited by the rubber pad 502 for resistance.

[0068] In this embodiment, see the attached Figure 2 The sealing mechanism achieves the sealing of the wire groove 301 by limiting the position of the cover plate 501 by the rubber pad 502. When a new elastic cord 3 needs to be replaced, the cover plate 501 is pushed out of the wire groove 301 by appropriate thrust, and then the new elastic cord 3 is put on the inner sleeve 2, and one end of the new elastic cord 3 is passed through the wire groove 301 and wound around the retractable wire drum 304. The cover plate 501 is slid to the fitting position in the wire groove 301 by appropriate thrust. It is convenient and quick, and can avoid pollution.

[0069] Example 3

[0070] This embodiment differs from the second embodiment in that:

[0071] Specifically, it also includes a detachable mechanism, which is provided on the outer sleeve 4 and the control ring 403, so that the control ring 403 and the outer sleeve 4 have a detachable function;

[0072] The detachable mechanism includes a plurality of rubber plug rods 601 arranged at equal intervals along the circumferential direction on the side wall of the outer sleeve 4 near the control ring 403, and a plurality of plug grooves 602 fixedly connected to the side wall of the control ring 403 near the outer sleeve 4 at equal intervals along the circumferential direction. The control ring 403 and the outer sleeve 4 are disassembled and assembled by plugging into or detaching from the plurality of rubber plug rods 601 through the plurality of plug grooves 602.

[0073] In this embodiment, see the attached Figure 5 The detachable mechanism is composed of a plurality of plug-in slots 602 that are plugged into or disengaged from a plurality of rubber plug-in rods 601 to realize the disassembly and assembly between the control ring 403 and the outer sleeve 4, which can effectively limit the position of the control ring 403 when not in use to avoid the loss of the control ring 403.

[0074] Air pump 104, motor 201, touch screen 401, first switch button 402, first controller 404, first wireless communicator 405, first battery 406, second controller 408, second wireless communicator 409, second battery 410, and second switch button 412 are all conventional instruments. Their operating principles, dimensions, and models are compatible with the functions of this application, so they will not be described in detail. The control method of the present invention is controlled by first controller 404 and second controller 408. The control circuit can be implemented through simple programming by those skilled in the art. The power supply of first battery 406 and second battery 410 is also common knowledge in the art. Since the present invention is primarily used to protect mechanical devices, the control method and circuit connections will not be explained in detail.

[0075] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elastic rope ligation device used under colonoscopy, characterized in that: include: A colonoscope (1), wherein an inner sleeve (2) is fixedly sleeved on the outside of an inspection end of the colonoscope (1), an elastic rope (3) is provided on the outer surface of the inner sleeve (2) close to the inspection end, and an outer sleeve (4) is provided on the outer surface of the inner sleeve (2) away from the inspection end; A negative pressure adsorption mechanism is provided on the inner sleeve (2) and the elastic rope (3), so that the area inside the inner sleeve (2) located near the inspection end of the colonoscope (1) presents a negative pressure state when ligating and presents a normal state when not ligating; A moving drive mechanism is provided on the inner sleeve (2) and the elastic cord (3), drives the outer sleeve (4) to move toward the inspection end, pushes the elastic cord (3) out of the inner sleeve (2) so that it is sleeved on the diseased tissue, and simultaneously drives the outer sleeve (4) to move away from the inspection end and reset; A tensioning drive mechanism is provided on the inner sleeve (2) and the elastic rope (3), and drives the elastic rope (3) to be tightened as the outer sleeve (4) moves; The control mechanism is arranged on the inner sleeve (2) and the elastic rope (3) to control the start and stop of the negative pressure adsorption mechanism and the mobile drive mechanism.

2. The elastic cord ligation device for use under colonoscopy according to claim 1, characterized in that: The negative pressure adsorption mechanism comprises a plurality of ventilation openings (103) provided at equal intervals along the circumferential direction on the inner sleeve (2) and located in the area near the inspection end of the colonoscope (1), an annular groove (102) provided inside the outer sleeve (4), and two sealing rings (101) fixedly connected to the inner walls on both sides of the outer sleeve (4). The annular groove (102) is connected to the plurality of ventilation openings (103). During the movement of the outer sleeve (4), the annular groove (102) will not leave the area of the plurality of ventilation openings (103). An air pump (104) is fixedly connected to the inner wall of the outer sleeve (4), and the air outlet end of the air pump (104) passes through the outer sleeve (4) and extends to the outside.

3. The elastic cord ligation device for use under colonoscopy according to claim 2, characterized in that: The mobile drive mechanism comprises a first fixed plate (202) fixed on the outer wall of the inner sleeve (2) and located in the annular groove (102), and a first rack (204) fixed on the inner wall of the outer sleeve (4). The position setting of the first fixed plate (202) simultaneously meets the forward and backward movement requirements of the outer sleeve (4). The top of the first fixed plate (202) is fixed with a motor (201). The output end of the motor (201) passes through the first fixed plate (202) and extends to the lower end and is fixedly sleeved with a first gear (203). The first gear (203) is meshed and connected with the first rack (204).

4. The elastic cord ligation device for use under colonoscopy according to claim 2, characterized in that: The tensioning drive mechanism comprises a line groove (301) provided on the outer sleeve (4) and communicating with the annular groove (102), a fracture opening (302) provided on the elastic rope (3), a second fixing plate (305) fixed on the outer wall of the inner sleeve (2) and located in the annular groove (102), and a second rack (307) fixed on the inner wall of the outer sleeve (4). The position setting of the second fixing plate (305) simultaneously meets the forward and backward movement requirements of the outer sleeve (4). The interior of the second fixing plate (305) is connected to a driving shaft (303) via a bearing. One end of the driving shaft (303) is fixedly sleeved with a second gear (306), and the other end of the driving shaft (303) is fixedly sleeved with a retractable wire drum (304). The second gear (306) can be meshed and connected with the second rack (307). One end of the elastic rope (3) extends into the annular groove (102) through the wire groove (301) and is wound around the retractable wire drum (304). The second rack (307) is arranged in front of the second gear (306). When the outer sleeve (4) moves toward the inspection end side, it does not mesh with the second gear (306), and vice versa.

5. The elastic cord ligation device for use under colonoscopy according to claim 3, characterized in that: The control mechanism comprises a second switch button (412) fixed on the outer wall of the outer sleeve (4), a housing (407) and a second battery (410) fixed on the inner wall of the outer sleeve (4) at different intervals, and a control ring (403) sleeved on the outside of the elastic rope (3); a second controller (408) and a second wireless communicator (409) are fixed on the inside of the housing (407) at different intervals; a charging port of the second battery (410) extends through the outer sleeve (4) to the outside; a screw plug (411) is threadedly connected to the charging port of the second battery (410) on the outer sleeve (4); a first switch button (402) and a touch screen (401) are fixed on the outer wall of the control ring (403) at different intervals; a first controller (404) and a first wireless communicator (409) are fixed on the inside of the control ring (403) at different intervals; 05) and a first battery (406), a charging port of the first battery (406) extends through the control ring (403) to the outside, a second switch button (412), a second wireless communicator (409), an air pump (104) and a motor (201) are electrically connected to the second controller (408), the second switch button (412), the second controller (408), the second wireless communicator (409), the air pump (104) and the motor (201) are electrically connected to the second battery (410), the first switch button (402), the touch screen (401) and the first wireless communicator (405) are electrically connected to the first controller (404), and the first switch button (402), the touch screen (401), the first controller (404) and the first wireless communicator (405) are electrically connected to the first battery (406).

6. The elastic cord ligation device for use under colonoscopy according to claim 4, characterized in that: It also includes a sealing mechanism to seal the wire groove (301) to prevent the intestinal matter from entering the annular groove (102) during the inspection process and affecting the operation of the structure; The sealing mechanism comprises a cover plate (501) arranged in the wire slot (301) and a rubber pad (502) fixed to the inner wall of the wire slot (301); the cover plate (501) is slidably connected in the wire slot (301) and is limited by resistance through the rubber pad (502).

7. The elastic cord ligation device for use under colonoscopy according to claim 5, characterized in that: It also includes a detachable assembly mechanism, which is arranged on the outer sleeve (4) and the control ring (403), so that the control ring (403) and the outer sleeve (4) have a detachable assembly function; The detachable assembly mechanism comprises a plurality of rubber plug rods (601) arranged at equal intervals along the circumferential direction on the side wall of the outer sleeve (4) close to the control ring (403) and a plurality of plug slots (602) fixed at equal intervals along the circumferential direction on the side wall of the control ring (403) close to the outer sleeve (4). The control ring (403) and the outer sleeve (4) are detached and assembled by plugging into or out of the plurality of rubber plug rods (601) via the plurality of plug slots (602).

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