Auxiliary traction device for endoscope in digestive system department
By using a magnetic suction mechanism and an adjustment mechanism, the problem of easy corrosion of springs and traction ropes in the endoscopic traction device for gastroenterology has been solved, achieving stable clamping and force adjustment, thus improving the stability and practicality of the device.
Patent Information
- Application Number
- CN202423126050.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-18
AI Technical Summary
In existing endoscopic traction devices for gastroenterology, the springs and traction ropes are easily corroded and damaged by digestive fluids, and it is difficult to adjust the clamping force according to the lesion, resulting in unstable clamping.
It employs a magnetic attraction mechanism and an adjustment mechanism, using electromagnets and circuits to control the opening and closing of the movable clamping plate and the clamping force. The magnetic attraction mechanism prevents the spring and traction rope from being exposed inside the body, and the adjustment resistor controls the magnetic force of the electromagnet to adjust the clamping force.
This improved the stability and adjustability of the device, avoided corrosion and damage to the springs and traction ropes, and enabled stable clamping and force adjustment based on the lesion.
Smart Images

Figure CN223831171U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to an endoscopic traction device for gastroenterology. Background Technology
[0002] In the field of gastroenterology, endoscopy is an extremely important diagnostic and therapeutic tool. For example, a gastroscopy allows direct visualization of the inside of the esophagus, stomach, and duodenum. When performing endoscopic examinations on patients, medical staff sometimes discover foreign objects in the patient's body, requiring the assistance of traction devices to remove them.
[0003] Existing devices primarily use springs and other components to assist the movable clamping plate in clamping and traction. Existing technologies are largely similar to an auxiliary traction device used in gastroenterology endoscopy. The structure of patent number CN216417240U includes a traction hose, mounting block, handle, front rotating support plate, rear rotating support plate, clamping plate, rotating groove, rotating bearing, rotating rod, torsion spring, and connecting rod. The other end of the connecting rod connecting the front and rear rotating support plates is hinged to a rotating rod. A cable is fixed to the upper end of the rotating rod, and the upper end of the cable passes through the traction hose and extends to the upper side of the handle. A control plate is located on the upper side of the handle. The advantages of this invention compared to existing technologies are: simple operation and the ability to maintain the open state. However, there are still areas for improvement in this device.
[0004] Existing devices mainly use components such as springs and traction ropes to assist in the traction of the movable splint. This makes it difficult for some devices to avoid exposing the springs and traction ropes inside the body, thus preventing these components from being easily damaged by digestive fluid corrosion. At the same time, some devices cannot adjust the clamping force of the movable splint according to the lesion, which makes it difficult to stably clamp the movable splint, reducing the working efficiency and practicality of the device. Therefore, in order to solve the above problems, a gastroenterology endoscopy-assisted traction device is proposed. Utility Model Content
[0005] The purpose of this utility model is to provide an endoscopic traction device for gastroenterology, which solves the problem mentioned in the background art that the existing devices mainly use components such as springs and traction ropes to assist in traction of the movable splint. This makes it difficult for some devices to avoid the springs and traction ropes being exposed in the body, thus preventing the springs and traction ropes from being easily damaged by digestive fluid corrosion. At the same time, some devices are difficult to adjust the clamping force of the movable splint according to the lesion, which makes it difficult to stably clamp the movable splint.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a traction device for gastroenterology endoscopy, comprising a handle, a DC circuit board fixedly connected to the middle of the bottom of the handle, a switch fixedly connected above the DC circuit board on the right side of the handle, a traction hose fixedly connected to the middle of the bottom of the handle, a traction head fixedly connected to the bottom end of the traction hose, a fixed clamping plate fixedly connected to the left side of the bottom of the traction head, and a movable clamping plate provided on the right side of the fixed clamping plate;
[0007] The traction head is equipped with a magnetic attraction mechanism inside. The magnetic attraction mechanism includes a rotating shaft seat, the two ends of which are movably connected to the middle of the inner wall of the traction head. An adjustment mechanism is provided inside the handle at the top. The adjustment mechanism includes an adjustment resistor, the outer wall of which is fixedly connected to the top of the inner wall of the handle.
[0008] Preferably, the top of the movable clamping plate is fixedly connected to the bottom of the rotating shaft seat, and the top of the rotating shaft seat is fixedly connected to an iron core plastic package.
[0009] Preferably, a first electromagnet is fixedly connected to the right side of the inner wall of the traction head, and a second electromagnet is fixedly connected to the left side of the inner wall of the traction head. The first and second electromagnets are connected to a DC circuit board via wires.
[0010] Preferably, the regulating resistor and the first electromagnet are connected in series in the circuit, and the first electromagnet and the second electromagnet are connected in parallel in the circuit.
[0011] Preferably, a movable contact is slidably connected above the adjusting resistor, and a rotating plate is fixedly connected to the top of the movable contact.
[0012] Preferably, a movable shaft is fixedly connected to the top center of the rotating plate, the top end of the movable shaft passes through the top of the handle and is fixedly connected to a twist cap, and a rubber damping ring is fixedly connected to the top outer ring of the rotating plate.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This utility model utilizes a magnetic attraction mechanism comprising a rotating shaft seat, an iron core plastic package, a first electromagnet, and a second electromagnet. When a switch is energized, the second electromagnet attracts the iron core plastic package, which in turn drives the rotating shaft seat and the movable clamping plate to rotate in a limited position, keeping the movable clamping plate in an unfolded state. When a switch is energized, the first electromagnet attracts the iron core plastic package, keeping the movable clamping plate in a clamped state. This achieves magnetic traction of the movable clamping plate, allowing some devices to avoid using springs and traction ropes to assist in traction of the movable clamping plate, thus preventing the springs and traction ropes from being exposed and corroded, and improving the stability and practicality of the device.
[0015] 2. This utility model, through the adjustment mechanism including the adjusting resistor, movable contact, rotating plate, movable shaft, twist cover, and rubber damping ring, allows manual rotation of the twist cover to limit the rotation of the movable shaft and rotating plate. The rotating plate then causes the movable contact to slide above the adjusting resistor, adjusting the resistance of the first electromagnet in the circuit. This controls the magnitude of the current and magnetic force of the first electromagnet, thereby achieving adjustment of the traction force. This allows some devices to adjust the clamping force of the movable clamp according to the lesion, facilitating stable clamping and improving the adjustability and practicality of the device. Attached Figure Description
[0016] Figure 1 This is a front side perspective view of the structure of this utility model;
[0017] Figure 2 This is a frontal sectional perspective view of the structure of this utility model;
[0018] Figure 3 This is a frontal sectional perspective view of a portion of the traction head and magnetic attraction mechanism of this utility model;
[0019] Figure 4 This is a front sectional perspective view of a partial structure of the grip and adjustment mechanism of this utility model;
[0020] Figure 5 This is a circuit diagram illustrating the working principle of this utility model.
[0021] In the diagram: 11. Handle; 12. DC circuit board; 13. Switch; 14. Traction hose; 15. Traction head; 16. Fixed clamp; 17. Movable clamp; 2. Magnetic attraction mechanism; 21. Rotating shaft seat; 22. Iron core plastic casing; 23. First electromagnet; 24. Second electromagnet; 3. Adjustment mechanism; 31. Adjusting resistor; 32. Movable contact; 33. Rotating plate; 34. Movable shaft; 35. Twist cover; 36. Rubber damping ring. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-5 One embodiment provided by this utility model:
[0024] An endoscopic traction device for gastroenterology includes a handle 11. A DC circuit board 12 is fixedly connected to the middle of the bottom of the handle 11. A switch 13 is fixedly connected to the right side of the handle 11 above the DC circuit board 12. A traction hose 14 is fixedly connected to the middle of the bottom of the handle 11. A traction head 15 is fixedly connected to the bottom end of the traction hose 14. A fixing clamp 16 is fixedly connected to the left side of the bottom of the traction head 15. A movable clamp 17 is provided on the right side of the fixing clamp 16.
[0025] The traction head 15 is equipped with a magnetic attraction mechanism 2, which includes a rotating shaft seat 21. Both ends of the rotating shaft seat 21 are movably connected to the middle of the inner wall of the traction head 15. The top of the movable clamping plate 17 is fixedly connected to the bottom of the rotating shaft seat 21. A core plastic casing 22 is fixedly connected to the top of the rotating shaft seat 21. This design allows the core plastic casing 22 to drive the rotating shaft seat 21 and the movable clamping plate 17 to rotate in a limited position. A first electromagnet 23 is fixedly connected to the right side of the inner wall of the traction head 15, and a second electromagnet 23 is fixedly connected to the left side of the inner wall of the traction head 15. Electromagnet 24, first electromagnet 23, and second electromagnet 24 are connected to DC circuit board 12 via wires. This design enables the first electromagnet 23 and second electromagnet 24 to attract and drive the iron core plastic package 22 to rotate left and right. Adjustable resistor 31 is connected in series with first electromagnet 23 in the circuit, and first electromagnet 23 and second electromagnet 24 are connected in parallel in the circuit. This design enables the first electromagnet 23 to be energized to drive the movable clamping plate 17 to maintain the clamping state, and the second electromagnet 24 to be energized to drive the movable clamping plate 17 to maintain the unfolded state.
[0026] An adjustment mechanism 3 is provided on the upper part of the inside of the grip 11. The adjustment mechanism 3 includes an adjustment resistor 31. The outer wall of the adjustment resistor 31 is fixedly connected to the upper part of the inner wall of the grip 11. A movable contact 32 is slidably connected above the adjustment resistor 31. A rotating plate 33 is fixedly connected to the top of the movable contact 32. Through this design, the rotating plate 33 drives the movable contact 32 to slide above the adjustment resistor 31 to adjust the resistance of the first electromagnet 23 in the circuit, thereby controlling the current and magnetic force of the first electromagnet 23. A movable shaft 34 is fixedly connected to the middle of the top of the rotating plate 33. The top of the movable shaft 34 passes through the top of the grip 11 and is fixedly connected to a twist cap 35. A rubber damping ring 36 is fixedly connected to the outer ring of the top of the rotating plate 33. Through this design, the twist cap 35 drives the movable shaft 34 and the rotating plate 33 to rotate in a limited position, which facilitates the real-time adjustment of the clamping force of the movable clamping plate 17.
[0027] Working principle: When it is necessary to magnetically pull the movable clamping plate 17, the second electromagnet 24 is first energized by the switch 13. The second electromagnet 24 attracts the iron core plastic package 22. The iron core plastic package 22 drives the rotating shaft seat 21 and the movable clamping plate 17 to rotate in a limited position, so that the movable clamping plate 17 is kept in the unfolded state. The first electromagnet 23 is energized by the switch 13. The first electromagnet 23 attracts the iron core plastic package 22, so that the movable clamping plate 17 is kept in the clamped state, thus realizing the magnetic pulling operation of the movable clamping plate 17.
[0028] When the traction force needs to be adjusted, firstly, the twist cover 35 is manually rotated. The twist cover 35 drives the movable shaft 34 and the rotating plate 33 to rotate in a limited position. The rotating plate 33 drives the movable contact 32 to slide in a limited position above the adjusting resistor 31, thereby adjusting the resistance of the first electromagnet 23 in the circuit, thereby controlling the magnitude of the current and magnetic force of the first electromagnet 23, realizing the adjustment of the traction force. The operation ends here.
[0029] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the description above. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A traction device for gastroenterology endoscopy, comprising a handle (11), characterized in that: A DC circuit board (12) is fixedly connected to the bottom center of the grip (11). A switch (13) is fixedly connected above the DC circuit board (12) on the right side of the grip (11). A traction hose (14) is fixedly connected to the bottom center of the grip (11). A traction head (15) is fixedly connected to the bottom end of the traction hose (14). A fixed clamp (16) is fixedly connected to the bottom left side of the traction head (15). A movable clamp (17) is provided on the right side of the fixed clamp (16). The traction head (15) is provided with a magnetic attraction mechanism (2) inside. The magnetic attraction mechanism (2) includes a rotating shaft seat (21). The two ends of the rotating shaft seat (21) are movably connected to the middle of the inner wall of the traction head (15). The handle (11) is provided with an adjustment mechanism (3) above the inside. The adjustment mechanism (3) includes an adjustment resistor (31). The outer wall of the adjustment resistor (31) is fixedly connected to the upper part of the inner wall of the handle (11).
2. The endoscopic traction device for gastroenterology according to claim 1, characterized in that: The top of the movable clamp (17) is fixedly connected to the bottom of the rotating shaft seat (21), and the top of the rotating shaft seat (21) is fixedly connected to the iron core plastic package (22).
3. The endoscopic traction device for gastroenterology according to claim 1, characterized in that: A first electromagnet (23) is fixedly connected to the right side of the inner wall of the traction head (15), and a second electromagnet (24) is fixedly connected to the left side of the inner wall of the traction head (15). The first electromagnet (23) and the second electromagnet (24) are connected to the DC circuit board (12) by wires.
4. The endoscopic traction device for gastroenterology according to claim 3, characterized in that: The regulating resistor (31) and the first electromagnet (23) are connected in series in the circuit, and the first electromagnet (23) and the second electromagnet (24) are connected in parallel in the circuit.
5. The endoscopic traction device for gastroenterology according to claim 1, characterized in that: A movable contact (32) is slidably connected above the adjusting resistor (31), and a rotating plate (33) is fixedly connected to the top of the movable contact (32).
6. The endoscopic traction device for gastroenterology according to claim 5, characterized in that: A movable shaft (34) is fixedly connected to the top center of the rotating plate (33). The top end of the movable shaft (34) passes through the top of the handle (11) and is fixedly connected to a twist cap (35). A rubber damping ring (36) is fixedly connected to the top outer ring of the rotating plate (33).
Citation Information
Patent Citations
Auxiliary traction device for endoscope in digestive system department
CN216417240U