Digestive tract foreign matter extraction device

Abstract

The utility model relates to the technical field of digestive system department, in particular to a digestive tract foreign matter extraction device which comprises an outer tube, an inner tube is movably arranged in the outer tube in a penetrating mode, a movable connector is fixedly installed at one end of the inner tube, and the movable connector is arranged in one end of the outer tube in a sliding mode. The end, away from the inner pipe, of the movable connector extends out of the end of the outer pipe in a penetrating mode, a flexible sleeve is fixedly installed at the end of the outer pipe, the end, extending out of the end of the outer pipe, of the movable connector extends into the flexible sleeve and is fixedly provided with a connecting shell, and clamping mechanisms are rotationally installed on the two sides of the connecting shell. According to the alimentary canal foreign body extraction device, the clamping jaws can be shaded through the flexible sleeves, so that foreign bodies with sharp surfaces can be shaded, the inner wall of the alimentary canal of a human body is prevented from being damaged when the foreign bodies are taken out, and the alimentary canal foreign body extraction device is worthy of popularization.

Description

Technical Field

[0001] This utility model relates to the field of gastroenterology, and in particular to a device for extracting foreign bodies from the digestive tract. Background Technology

[0002] In the gastroenterology department, we frequently encounter patients with foreign objects lodged in their digestive tract. Currently, medical staff typically need to remove these objects using a retrieval device. During this process, the foreign object and the grippers come into direct contact with the inner wall of the digestive tract. If the swallowed object has a sharp surface, it can easily cause secondary damage to the digestive tract lining during removal. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies where foreign objects with sharp surfaces can easily cause secondary damage to the inner wall of the human digestive tract during removal, and to propose a digestive tract foreign object extraction device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A foreign body extraction device for the digestive tract is designed, comprising an outer tube, an inner tube that movably penetrates the outer tube, a movable joint fixedly installed at one end of the inner tube, the movable joint being slidably disposed inside one end of the outer tube, the end of the movable joint away from the inner tube extending through to the outside of the end of the outer tube, a flexible sleeve fixedly installed at the end of the outer tube, the end of the movable joint extending outside the end of the outer tube extending into the flexible sleeve and fixedly installed with a connecting shell, clamping mechanisms rotatably installed on both sides of the connecting shell, the clamping mechanisms being connected to a pull wire, the end of the pull wire penetrating the movable joint and extending to the outside of the other end of the inner tube.

[0006] Preferably, a flange is fixedly installed at the center of both ends of the movable joint, and the edge of the flange is a smooth arc plane.

[0007] Preferably, the clamping mechanism includes a gripper, the end of which is rotatably connected to the outer surface of the connecting shell, a linkage block is fixedly installed at the end of the gripper near the connecting shell, the end of the linkage block extends through into the interior of the connecting shell, a connector is fixedly installed at the end of the linkage block, the end of the connector is bolted to the end of the pull wire, and a spring is also fixedly connected at the end of the connector, the end of the spring being fixedly connected to the end surface of the inner tube.

[0008] Preferably, an anti-slip pad is fixedly installed on the inner surface of the gripper, and multiple protrusions are uniformly fixedly installed on the surface of the anti-slip pad.

[0009] Preferably, an airbag is also fixedly installed on the inner surface of the gripper, and the airbag is located inside the anti-slip pad.

[0010] Preferably, the flexible sleeve covers the outside of the gripper, and the inside of the flexible sleeve is made of silicone.

[0011] Preferably, the outer tube, inner tube, movable joint, connecting shell, and flexible sleeve are arranged coaxially.

[0012] The present invention discloses a foreign body extraction device for the digestive tract, which has the following advantages: During use, pulling the pull wire can move the connector head, compressing the spring. The movement of the connector head can drive the gripper to rotate through the linkage block. The rotation and tightening of the gripper can clamp the foreign body. Pulling the inner tube can move the movable joint, which in turn can move the connecting shell. The movement of the connecting shell can cause the gripper to be hidden inside the flexible sleeve. During the pulling out process, the outer tube is protected by the flexible sleeve, which can prevent foreign bodies with sharp surfaces from damaging the inner wall of the human digestive tract. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a foreign body extraction device for the digestive tract proposed in this utility model;

[0014] Figure 2 This is a cross-sectional view of the movable connector and the interior of the flexible sleeve in a foreign body extraction device for the digestive tract proposed in this utility model.

[0015] Figure 3 This is a schematic diagram of the external structure of the flexible sleeve opening end in a foreign body extraction device for the digestive tract proposed in this utility model;

[0016] Figure 4 This is a cross-sectional view of the internal structure of the flexible sleeve in a foreign body extraction device for the digestive tract proposed in this utility model.

[0017] In the diagram: 1. Outer tube; 2. Inner tube; 3. Movable joint; 4. Flange; 5. Connecting shell; 6. Gripper; 7. Linkage block; 8. Connector; 9. Spring; 10. Pull cable; 11. Airbag; 12. Anti-slip pad; 13. Flexible sleeve. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Example 1: Refer to Figure 1-4A foreign body extraction device for the digestive tract includes an outer tube 1, with an inner tube 2 movably passing through it. A movable connector 3 is fixedly installed at one end of the inner tube 2, and the movable connector 3 is slidably disposed inside one end of the outer tube 1, as shown in the attached figure. The end of the movable connector 3 can slide within the inner tube 2. The end of the movable connector 3 away from the inner tube 2 extends through to the outside of the end of the outer tube 1. A flexible sleeve 13, made of silicone, is fixedly installed at the end of the outer tube 1, covering the outside of the clamping structure. The outer tube 1, inner tube 2, movable connector 3, connecting shell 5, and flexible sleeve 13 are coaxially arranged. During the process of the clamping mechanism entering and exiting the human digestive tract, a protective barrier is provided between the clamping mechanism and the human digestive tract, preventing damage to the inner wall of the digestive tract and preventing sharp-surfaced foreign objects held by the clamping mechanism from scratching the inner wall of the digestive tract.

[0020] The end of the movable joint 3 extending beyond the end of the outer tube 1 extends into the flexible sleeve 13 and is fixedly installed with a connecting shell 5. Clamping mechanisms are rotatably installed on both sides of the connecting shell 5. The clamping mechanism is connected to a pull wire 10. Pulling the pull wire 10 can trigger the clamping mechanism to tighten and clamp foreign objects. The end of the pull wire 10 passes through the movable joint 3 and extends to the outside of the other end of the inner tube 2. To facilitate pulling the pull wire 10, a pull ring can be attached to the end of the pull wire 10 extending outside the inner tube 2. The pull ring makes it easy to pull the pull wire 10, and the end of the pull wire 10 is not easily separated from the end of the inner tube 2. A flange 4 is fixedly installed at the center of both ends of the movable joint 3. The edge of the flange 4 is a smooth arc surface. The pull wire passes through the inside of the movable joint 3, which can both restrict the position of the pull wire 10 and reduce the wear of the pull wire 10 during the pulling process through the smooth arc surface.

[0021] The clamping mechanism includes a gripper 6, the end of which is rotatably connected to the outer surface of the connecting shell 5. A flexible sleeve 13 covers the outside of the gripper 6, preventing damage to the inner wall of the human digestive tract from the gripper 6 and the foreign object it holds. A linkage block 7 is fixedly installed at the end of the gripper 6 near the connecting shell 5. The end of the linkage block 7 extends through into the interior of the connecting shell 5, and a connector 8 is fixedly installed at the end of the linkage block 7. The end of the connector 8 is bolted to the end of the pull wire 10. The pull wire 10 can pull the connector 8 to move, and the movement of the connector 8 will cause the gripper 6 to rotate and tighten through the linkage block 7. The tightening of the gripper 6 can clamp the foreign object. A spring 9 is also fixedly connected to the end of the connector 8. The end of the spring 9 is fixedly connected to the end surface of the inner tube 2. Under the elastic action of the spring 9, the connector 8 will move away from the inner tube 2. The movement of the connector 8 will drive the clamp 6 to rotate and open through the linkage block 7. The clamp 6 will only tighten when the connector 8 is pulled by the pull line 10.

[0022] After the foreign object is clamped by the gripper 6, medical staff pull the inner tube 2 outward. During the movement of the inner tube 2, the outer tube 1 remains stationary. The movement of the inner tube 2 causes the movable connector 3 to move, which in turn causes the connecting shell 5 to move. The connecting shell 5 then moves the gripper 6, which in turn moves the foreign object, allowing the gripper 6 and the foreign object to be concealed within the flexible sleeve 13. This prevents the gripper 6 and the foreign object from damaging the inner wall of the digestive tract during the extraction of the outer tube 1. Additionally, after pulling the pull cord 10 to tighten the gripper 6 and clamp the foreign object, the pull cord 10 needs to be kept in a pulled state throughout the extraction of the outer tube 1. While this is possible, it is not easy to perform. A better approach would be to attach the taut pull cord 10 to the outside of the end of the outer tube 1, or to design a structure that allows for easier winding of the pull cord. Further details are not provided here.

[0023] An anti-slip pad 12 is fixedly installed on the inner surface of the gripper 6. Multiple protrusions are evenly fixedly installed on the surface of the anti-slip pad 12. The anti-slip pad 12 can increase the friction between the gripper 6 and the foreign object, and can prevent the foreign object from separating from the gripper 6. The anti-slip pad 12 can adapt to foreign objects of different shapes through the protrusions, and can improve the stability of gripping foreign objects of different shapes.

[0024] An airbag 11 is also fixedly installed on the inner surface of the gripper 6. The airbag 11 is located inside the anti-slip pad 12. The anti-slip pad 12 is relatively thin. The airbag 11 increases the thickness of the anti-slip pad 12 while maintaining its softness. During the gripping process, the thinner outer end of the anti-slip pad 12 is more likely to engage with the outside of the foreign object, allowing the gripper 6 to hold the foreign object. By setting the airbag 11, the thickness of the inner end of the anti-slip pad 12 is increased. When gripping a long and thin foreign object, the contact area is small, and the anti-slip pad 12 is prone to slipping on the surface of the long and thin foreign object, causing the foreign object to detach from the gripper 6. The airbag 11 increases the thickness of the anti-slip pad 12. When the gripper 6 grips a long and thin foreign object, the anti-slip pad 12 deforms by squeezing the airbag 11, which can firmly grip the long and thin foreign object, resulting in strong gripping stability.

[0025] Working principle: During use, the outer tube 1 of this digestive tract foreign body extraction device is inserted into the human digestive tract. A camera component is installed at the end of the connecting shell 5 inside the device to observe the state inside the digestive tract. When a foreign body is encountered, the speed and distance of the insertion of the outer tube 1 are carefully controlled so that the gripper 6 is clamped on the outside of the foreign body. Then, the pull line 10 is pulled, which moves the connector 8. The spring 9 is compressed, and the movement of the connector 8 will drive the gripper 6 to rotate through the linkage block 7. The rotation of the gripper 6 tightens and can clamp the foreign body. Then, the inner tube 2 is pulled, which moves the movable connector 3. The movement of the movable connector 3 will drive the gripper 6 to hide inside the flexible sleeve 13 through the connecting shell 5. Finally, the outer tube 1 is pulled out. The flexible sleeve 13 protects against foreign bodies with sharp surfaces from damaging the inner wall of the human digestive tract.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for removing foreign bodies from the digestive tract, comprising an outer tube (1), characterized in that, The inner tube (2) is movably inserted inside the outer tube (1). A movable joint (3) is fixedly installed at one end of the inner tube (2). The movable joint (3) is slidably disposed inside one end of the outer tube (1). The end of the movable joint (3) away from the inner tube (2) extends through to the outside of the end of the outer tube (1). A flexible sleeve (13) is fixedly installed at the end of the outer tube (1). The end of the movable joint (3) extending outside the end of the outer tube (1) extends into the flexible sleeve (13) and is fixedly installed with a connecting shell (5). A clamping mechanism is rotatably installed on both sides of the connecting shell (5). A pull wire (10) is connected to the clamping mechanism. The end of the pull wire (10) passes through the movable joint (3) and extends to the outside of the other end of the inner tube (2).

2. The digestive tract foreign body extraction device according to claim 1, characterized in that, The movable joint (3) has flanges (4) fixedly installed at the center of both ends, and the edges of the flanges (4) are smooth arc surfaces.

3. The digestive tract foreign body extraction device according to claim 1, characterized in that, The clamping mechanism includes a gripper (6), the end of which is rotatably connected to the outer surface of the connecting shell (5). A linkage block (7) is fixedly installed on the end of the gripper (6) near the connecting shell (5). The end of the linkage block (7) extends through into the interior of the connecting shell (5). A connector (8) is fixedly installed on the end of the linkage block (7). The end of the connector (8) is bolted to the end of the pull wire (10). A spring (9) is also fixedly connected to the end of the connector (8). The end of the spring (9) is fixedly connected to the end surface of the inner tube (2).

4. The digestive tract foreign body extraction device according to claim 3, characterized in that, An anti-slip pad (12) is fixedly installed on the inner surface of the gripper (6), and multiple protrusions are uniformly fixedly installed on the surface of the anti-slip pad (12).

5. The digestive tract foreign body extraction device according to claim 4, characterized in that, An airbag (11) is also fixedly installed on the inner surface of the gripper (6), and the airbag (11) is located inside the anti-slip pad (12).

6. The digestive tract foreign body extraction device according to claim 5, characterized in that, The flexible sleeve (13) covers the outside of the gripper (6), and the inside of the flexible sleeve (13) is made of silicone.

7. The digestive tract foreign body extraction device according to claim 1, characterized in that, The outer tube (1), inner tube (2), movable joint (3), connecting shell (5) and flexible sleeve (13) are coaxially arranged.

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