CN116763412B - Digestive tract foreign body extraction device - Google Patents

Abstract

The invention discloses a foreign matter extraction device for a digestive tract, which comprises an inlet pipeline and a clamp arranged at the tail end of the inlet pipeline, wherein friction lines are formed on the clamp, the tail end of the inlet pipeline is provided with a clamp for manually controlling opening and closing, one side of the inlet pipeline, which is close to the clamp, is provided with a protective cylinder assembly for protecting digestive tract tissues, the protective cylinder assembly comprises a plurality of groups of outer cover plates arranged on the peripheral side of the inlet pipeline, a sealing assembly is arranged between the adjacent outer cover plates, the inlet pipeline is internally provided with an outward opening assembly for driving the plurality of groups of outer cover plates to move, the plurality of groups of outer cover plates move towards the central axis direction of the inlet pipeline in a synchronous opposite or opposite mode, and the inlet pipeline is also provided with a port opening assembly for preventing the oral cavity of a patient from being closed.

Description

Digestive tract foreign body extraction device

Technical field

The present invention relates to the technical field of foreign body extraction devices, specifically to a digestive tract foreign body extraction device.

Background technique

Foreign bodies in the digestive tract are non-native substances that are retained in the digestive tract due to various reasons. The digestive tract includes the mouth, pharynx, esophagus, stomach, small intestine and large intestine. Foreign bodies in the digestive tract refer to foreign bodies accidentally swallowed into the upper digestive tract. There are various types of foreign bodies in the tract, such as the esophagus, stomach, and even the duodenum.

When there is a foreign body in the patient's digestive tract, a foreign body extraction device needs to be used to remove the foreign body from the digestive tract. When removing the foreign body, due to different types of foreign bodies, sharp or irregular foreign bodies are difficult to remove from the digestive tract, or may be damaged during the removal process. It will cause damage to the patient's digestive tract, so there is some room for improvement.

Contents of the invention

The purpose of the present invention is to provide a device for extracting foreign bodies in the digestive tract, which has the advantages of stably picking up foreign bodies and protecting the patient's digestive tract tissue, and solves the problem of difficulty in picking up foreign bodies due to different types and possible secondary damage to the patient's digestive tract during the process of extracting foreign bodies. question.

In order to achieve the above object, the present invention provides the following technical solution: a device for extracting foreign matter from the digestive tract, including an introduction pipe and a clamp provided at its end. The clamp is provided with friction patterns, and the end of the introduction pipe is provided with a manually controlled opening and closing clamp. clamp;

The side of the introduction pipe close to the clamp is provided with a casing assembly to protect the digestive tract tissue. The casing assembly includes multiple sets of outer cover plates arranged around the sides of the introduction pipe, and sealing assemblies are provided between adjacent outer cover plates;

The introduction pipe is provided with an expansion assembly that drives the movement of multiple sets of outer cover plates. The movement mode of the multiple sets of outer cover plates is to move synchronously toward or in opposite directions toward the central axis of the introduction pipe;

The introduction pipe is also provided with a mouth opening component to prevent the patient's mouth from closing, and the mouth opening component includes a freely inflatable and deflated air bag.

Preferably, one end of the L-shaped rod is fixedly connected to the clamp, the middle part of the L-shaped rod is rotationally connected to the introduction pipe through a rotating pin, and the other end of the L-shaped rod is rotationally connected to one end of the swing rod through a rotating pin. The other end of the swing rod is rotationally connected to the rectangular plate through a rotating pin. The rectangular plate is fixedly connected to the end of the No. 1 pull rope. The first end of the No. 1 pull rope is provided with a reset component to restore the clamp to the initial state.

Preferably, the introduction pipe is provided with accommodating chambers at positions corresponding to the L-shaped rod, swing rod and rectangular plate.

Preferably, the reset assembly includes an adjustment cylinder fixedly connected to the first end of the introduction pipe. The No. 1 pull rope runs through the introduction pipe and the adjustment cylinder through the channel and is fixedly connected to a pull twist. The pull twist is fixedly connected to one end of the No. 1 spring. The other end of the spring is fixedly connected to the integrally formed inner ring portion of the annular seat. The annular seat is slidingly connected to the adjusting barrel through a chute. The annular seat is provided with a snap-on assembly that limits its movement.

Preferably, the annular seat further includes an integrally formed outer ring portion, and the snap-in assembly includes an arc-shaped plate disposed on the outer ring portion. The arc-shaped plate is rotatably connected to the outer ring portion through a rotating shaft, and is also fixed on the outer ring portion. There is an extension plate connected to the extension plate. One end of the No. 2 spring is fixedly connected to the extension plate. The other end of the No. 2 spring is fixedly connected to one end of the arc plate. The arc plate is tilted and the other end of the arc plate is fixedly connected with a snap connection. block, and the adjusting barrel is provided with multiple sets of equidistantly distributed snap-in grooves corresponding to the positions of the snap-in block.

Preferably, when the No. 2 spring is in a naturally extended state, the snap-in block on the arc-shaped plate is in the snap-in groove.

Preferably, the expansion assembly includes a retractable rod, one end of the retractable rod is rotatably connected to the outer cover plate through a rotating shaft, and the other end of the retractable rod is rotatably connected to the cross bar through the rotating shaft, and the cross bar is opened on the side wall of the introduction pipe. The ring seat chamber on the ring seat is slidingly connected to the side wall of the introduction pipe. The cross bar is fixedly connected to the pulling ring seat. The pulling ring seat is located in the ring seat chamber. The pulling ring seat is fixedly connected with the No. 2 pull rope, and the No. 2 pull rope runs through the channel. The pipe is introduced and fixedly connected to the inner ring.

Preferably, the inner wall of the adjustment barrel is fixedly connected with a limiting ring, and the limiting ring is located on the side of the inner ring portion close to the torsion.

Preferably, the sealing assembly includes a cover plate chamber provided on the outer cover plate for accommodating the connecting cover plate. The connecting cover plate is slidably connected to the inner wall of the outer cover plate through a chute, and the connecting cover plate is located between two adjacent sets of outer cover plates. contact position.

Preferably, the airbag has an annular structure, and a middle support plate is fixedly connected to the airbag. The middle support plate is provided with a through slot for the inlet pipe to pass through. One side of the airbag is connected to a hollow balloon through the air inlet pipe. The other end is fixedly connected with an air outlet pipe, and a sealing plug is screwed on the air outlet pipe.

Compared with the prior art, the beneficial effects of the present invention are as follows:

1. By arranging manually controlled opening and closing clamps and a casing assembly, the present invention can stably grasp the foreign matter when extracting the foreign matter in the digestive tract, and protect the patient's digestive tract tissue during the extraction of foreign matter to prevent the digestive tract tissue from being damaged. Secondary damage occurred during the extraction of foreign matter.

2. The present invention sets a sealing component and uses connecting cover plates to make up for the gap that increases with the increase in opening degree between two adjacent sets of outer cover plates, thereby further preventing the sharp points of foreign objects from causing damage to the patient's digestive tract tissue.

Description of drawings

Figure 1 is a schematic three-dimensional view of the overall structure of the present invention;

Figure 2 is a side view of the overall structure of the present invention;

Figure 3 is a schematic diagram of the casing assembly of the present invention;

Figure 4 is a schematic diagram of the position of the connecting cover plate of the present invention;

Figure 5 is an enlarged view of position A in Figure 2 of the present invention;

Figure 6 is an enlarged view of B in Figure 1 of the present invention;

Figure 7 is an enlarged view of C in Figure 3 of the present invention;

Figure 8 is a schematic three-dimensional view of the internal structure of the adjusting cylinder of the present invention;

Figure 9 is a schematic diagram of the internal structure of the accommodation chamber of the present invention;

Figure 10 is a schematic diagram of the positional relationship between the annular seat and the adjusting cylinder of the present invention.

In the picture: 1. Introduction pipe; 2. Adjustment barrel; 3. Clamp; 4. L-shaped rod; 5. Swing bar; 6. Accommodation chamber; 7. Rectangular plate; 8. No. 1 pull cord; 9. Pull Torsion; 10. No. 1 spring; 11. Ring seat; 111. Inner ring part; 112. Outer ring part; 12. Limiting ring; 13. Extension plate; 14. Arc plate; 15. No. 2 spring; 16. Snap-in groove; 17. Friction pattern; 18. Outer cover plate; 19. Connecting cover plate; 20. Retraction and release lever; 21. Cross bar; 22. Pulling ring seat; 23. No. 2 pull cord; 24. Cover plate chamber ; 25. Ring seat chamber; 26. Air bag; 27. Air inlet pipe; 28. Hollow balloon; 29. Air outlet pipe; 30. Middle support plate; 31. Sealing plug.

Detailed ways

Referring to Figures 1 to 10, the present invention provides a technical solution: a device for extracting foreign bodies from the digestive tract, including an introduction pipe 1 and a clamp 3 provided at its end. The clamp 3 is provided with friction patterns 17, and the introduction pipe 1 is provided with Clamp 3 with manual control of opening and closing;

The side of the introduction pipe 1 close to the clamp 3 is provided with a casing assembly to protect the digestive tract tissue. The casing assembly includes multiple sets of outer cover plates 18 arranged around the sides of the introduction pipe 1, and seals are provided between adjacent outer cover plates 18. components;

The introduction pipe 1 is provided with an expansion assembly that drives the movement of multiple sets of outer cover plates 18. The movement mode of the multiple sets of outer cover plates 18 is to move synchronously toward or in opposite directions toward the central axis of the introduction pipe 1;

The introduction pipe 1 is also provided with a opening assembly to prevent the patient's mouth from closing. The opening assembly includes a freely inflatable and deflated air bag 26 .

As shown in Figures 1 to 3, when there is a foreign body in the patient's digestive tract, the air bag 26 in the opening assembly is put into the patient's mouth, and the air bag 26 is inflated to support the patient's mouth, and then slowly inflates the air bag 26 into the patient's mouth. The introduction pipe 1 is gradually extended into the tract, and the internal conditions of the patient's digestive tract are viewed using the micro camera set at the end of the introduction pipe 1 and its external electrically connected display screen, until the clamp 3 at the end of the introduction pipe 1 reaches the position of the foreign body.

Observe the shape and position of the foreign object, and gradually adjust the position of the foreign object by manually controlling the opening and closing of the clamp 3 and adjusting the position of the introduction pipe 1 until the clamp 3 can stably clamp the foreign object, and based on the experience of the medical staff, make the sharp position of the odor Not toward the patient's digestive tract.

After the clamp 3 stably grasps the foreign object, the outer cover plates 18 in the casing assembly are positioned on the peripheral side of the foreign object, and the foreign object is located in the middle of the multiple sets of outer cover plates 18. The outer cover plates 18 are made of transparent material. Therefore, when the introduction pipe 1 is gradually pulled out, the presence of the outer cover plate 18 can protect the patient's digestive tract and prevent sharp foreign objects from causing damage to the patient's digestive tract tissue. At the same time, since the outer cover plate 18 is made of transparent material, When the foreign body is gradually extracted, it will not affect the medical staff's observation of the extraction of the foreign body, and it will not affect the observation of the digestive tract tissue simultaneously.

In one preferred embodiment, one end of the L-shaped rod 4 is fixedly connected to the clamp 3, the middle part of the L-shaped rod 4 is rotationally connected to the introduction pipe 1 through a rotating pin, and the other end of the L-shaped rod 4 rotates through a rotating pin. One end of the swing bar 5 is connected, and the other end of the swing bar 5 is rotationally connected to the rectangular plate 7 through a rotating pin. The rectangular plate 7 is fixedly connected to the end of the No. 1 pull cord 8, and the first end of the No. 1 pull cord 8 is provided with A reset component that restores the clamp 3 to its initial state.

As shown in Figures 5 and 9, when using the clamp 3 to clamp foreign objects, the No. 1 pull cord 8 is pulled to drive the rectangular plate 7 to move (as shown in Figure 9). When the rectangular plate 7 moves away from the clamp 3, The angle between the swing rod 5 and the rectangular plate 7 changes, so the L-shaped rod 4 is driven to swing horizontally on the introduction pipe 1, so that the cross-sectional shape formed by the two sets of clamps 3 becomes V-shaped. By controlling the two sets of clamps 3 opening and closing, thereby achieving the purpose of clamping the foreign body, and then removing the foreign body from the digestive tract.

Among them, in order to ensure that the existence of the introduction pipe 1 does not cause motion interference, the introduction pipe 1 has an accommodation chamber 6 corresponding to the L-shaped rod 4, the swing rod 5 and the rectangular plate 7. Due to the existence of the accommodation chamber 6, it is L-shaped. The rod 4, the swing rod 5 and the rectangular plate 7 provide movement space. Therefore, the existence of the introduction pipe 1 will not interfere with the three.

Further, the reset assembly includes an adjustment cylinder 2 fixedly connected to the first end of the introduction pipe 1. A No. 1 pull rope 8 passes through the introduction pipe 1 and the adjustment cylinder 2 through the channel and is fixedly connected to a pull twist 9. The pull twist 9 is fixedly connected to a No. 1 spring. One end of the spring 10 and the other end of the No. 1 spring 10 are fixedly connected to the integrally formed inner ring portion 111 of the annular seat 11. The annular seat 11 is slidingly connected to the adjusting cylinder 2 through the chute. The annular seat 11 is provided with a spring to limit its movement. Snap-on components.

As shown in Figures 8 and 9, when the rectangular plate 7 is driven to move toward or away from the clamp 3, the pull twist 9 is manually pulled to drive the No. 1 pull rope 8 to move synchronously. When the two parts are in contact, the clamp 3 is in a closed state. When the pull twist 9 is pulled, the No. 1 spring 10 gradually extends. At this time, the clamp 3 gradually becomes an open state. Therefore, when clamping foreign objects, Pull the pull twist 9 to make the foreign object between the two clamps 3, and then send the pull twist 9. At this time, the No. 1 spring 10 resumes its elastic deformation, thereby gradually closing the clamp 3. Therefore, using the force of the No. 1 spring 10 Elastic deformation to stably clamp foreign objects.

Based on the reset assembly embodiment, the annular seat 11 also includes an integrally formed outer ring portion 112. The snap-in assembly includes an arc plate 14 disposed on the outer ring portion 112. The arc plate 14 is connected to the outer ring through a rotating shaft. On the part 112, the outer ring part 112 is also fixedly connected with an extension plate 13. One end of the No. 2 spring 15 is fixedly connected to the extension plate 13. The other end of the No. 2 spring 15 is fixedly connected to one end of the arc plate 14. The arc-shaped The plate 14 is arranged at an angle, and the other end of the arc-shaped plate 14 is fixedly connected with a clamping block. The adjusting barrel 2 is provided with multiple sets of equidistantly distributed clamping grooves 16 corresponding to the positions of the clamping blocks.

As shown in Figures 6 and 8, when adjusting the longitudinal position of the annular seat 11 relative to the adjustment barrel 2, the head ends of the two sets of oppositely arranged arc plates 14 are pressed synchronously. At this time, the second spring 15 is compressed, making the arc The plate 14 deflects, causing the snap-in block at the end of the arc-shaped plate 14 to break away from the snap-in groove 16. At this time, manually push the outer ring portion 112, and after determining the position of the annular seat 11, release the arc-shaped plate 14. The horn spring 15 restores its deformation and drives the arc plate 14 to deflect to the initial position, so that the clamping block enters the corresponding clamping groove 16 .

In order to ensure that the annular seat 11 will not move arbitrarily, when the No. 2 spring 15 is in a naturally extended state, the snap block on the arc plate 14 is in the snap groove 16. Through the No. 2 spring 15, the snap block is in the initial state. That is, it is in the clamping groove 16 , and the position of the clamping block is restricted by the clamping groove 16 , thereby limiting the position of the annular seat 11 .

Furthermore, the inner wall of the adjusting cylinder 2 is fixedly connected to a limiting ring 12 , and the limiting ring 12 is located on the side of the inner ring portion 111 close to the pull twist 9 .

As shown in Figure 8, in the initial state, when the inner ring portion 111 in the annular seat 11 is in contact with the limiting ring 12, the tension twist 9 is in contact with the end of the adjustment barrel 2, and the No. 1 spring 10 is slightly stretched. Long deformation state, therefore, when pulling the pull twist 9, it will only further increase the elongation deformation of the No. 1 spring 10. When clamping the foreign object, the pull twist 9 gradually moves away from the end of the adjusting barrel 2. At this time, the No. 1 spring 10 is still in elongation deformation, and its elastic potential energy further increases. Through the limiting ring 12, the distance between the tension torsion 9 and the inner ring portion 111 is limited, so that the No. 1 spring 10 set between the two is always in an elongated state. long state, thereby ensuring that the clamp 3 always has clamping force on foreign objects.

Based on the embodiment of the snap-in assembly, the expansion assembly includes a retractable rod 20. One end of the retractable rod 20 is rotatably connected to the outer cover plate 18 through a rotating shaft. The other end of the retractable rod 20 is rotatably connected to the crossbar 21 through a rotating shaft. , the cross bar 21 is slidingly connected to the side wall of the introduction pipe 1 through the ring seat chamber 25 opened on the side wall of the introduction pipe 1, the cross bar 21 is fixedly connected to the pulling ring seat 22, and the pulling ring seat 22 is located in the ring seat chamber 25, The No. 2 pull rope 23 is fixedly connected to the pull ring seat 22. The No. 2 pull rope 23 penetrates through the introduction pipe 1 through the channel and is fixedly connected to the inner ring portion 111.

As shown in Figures 3, 4 and 7, when the ring seat 11 drives and pulls the ring seat 22 to move in the direction of the clamp 3, the following two situations exist;

Case 1, synchronous movement: When the cross-sectional shape of the foreign object does not exceed the cross-sectional edge composed of multiple sets of outer cover plates 18 in the initial state, the movement of the pulling ring seat 22 drives the cross bar 21 to move synchronously, because the outer cover plate 18 is not constrained by any force. , therefore, the vertical angle of the retractable rod 20 will not change, and the retractable rod 20 and the outer cover plate 18 will move synchronously with the cross bar 21 until the outer cover plate 18 is at the peripheral position of the foreign object, thereby surrounding the foreign object and preventing the foreign object from scratching. Damage to digestive tract tissue.

Case 2, opening movement: When the cross-sectional shape of the foreign object exceeds the cross-sectional edge formed by the multiple sets of outer cover plates 18 in the initial state, the same as above, since the foreign object is in a clamped state, the outer cover plate 18 is blocked by the foreign object and cannot follow. The cross bar 21 moves synchronously. At this time, while the cross bar 21 continues to move toward the clamp 3 direction, the retracting and releasing rod 20 deflects in the vertical direction, thereby synchronously driving multiple sets of outer cover plates 18 away from the introduction pipe 1 The movement in the axial direction further increases the cross-sectional size of the multiple sets of outer cover plates 18 until the cross-sectional size of the multiple sets of outer cover plates 18 is larger than the cross-sectional shape and size of the foreign object. Therefore, when the cross bar 21 continues to move, the outer cover plate 18 The movement state is consistent with the above situation, and then the foreign body is surrounded to achieve the purpose of protecting the digestive tract tissue.

Based on the embodiment of the expansion assembly, the sealing assembly includes a cover plate chamber 24 provided on the outer cover plate 18 for accommodating the connecting cover plate 19. The connecting cover plate 19 is slidingly connected to the inner wall of the outer cover plate 18 through the chute. The connecting cover The plate 19 is at the connecting position of two adjacent groups of outer cover plates 18 .

As shown in Figures 3 and 4, when the multiple sets of outer cover panels 18 exhibit the opening movement described in Case 2, in order to avoid gaps between the adjacent two sets of cover panels 18, The connecting cover plate 19 is provided, and the connecting cover plate 19 follows the opening degree of the outer cover plate 18 to make up the gap between them, thereby further preventing the sharp points of foreign objects from causing damage to the patient's digestive tract tissue.

On the basis of the embodiment of the sealing assembly, the air bag 26 has an annular structure. The air bag 26 is fixedly connected with a middle support plate 30. The middle support plate 30 is provided with a through groove for the introduction pipe 1 to pass through. One side of the air bag 26 passes through the air inlet. A hollow balloon 28 is connected through the pipe 27 , and an air outlet pipe 29 is fixedly connected to the other end of the air bag 26 . A sealing plug 31 is screwed on the air outlet pipe 29 .

As shown in Figures 1 and 2, when extracting foreign bodies in the digestive tract, the introduction tube 1 needs to enter the digestive tract from the patient's mouth. Therefore, in order to prevent the patient from closing his mouth due to the discomfort caused when extracting foreign bodies, it is necessary to Support the inside of the patient's mouth.

Before extracting foreign matter from the patient's digestive tract, the air bag 26 is placed in the patient's oral cavity, and the hollow balloon 28 is pinched by hand to allow natural air to gradually rush into the air bag 26, so that the air bag 26 gradually supports the patient's oral cavity.

Since both the air inlet end and the air outlet end of the hollow balloon 28 are provided with one-way valves, when the air balloon 28 is repeatedly pinched, the natural air from the outside will gradually enter the air bag 26 without escaping. During the extraction of foreign matter, After the completion, the air bag 26 can be deflated by unscrewing the sealing plug 31, and the air bag 26 can be taken out from the patient's mouth, and a through groove for the introduction pipe 1 to pass is opened at the center of the middle support plate 30, and the through groove is The diameter size is larger than the diameter size of the introduction pipe 1, so the balloon 26 and the middle support plate 30 will not interfere with the movement of the introduction pipe 1 when it gradually penetrates into the patient's digestive tract.

Working principle: When using this digestive tract foreign body extraction device, when there is a foreign body in the patient's digestive tract, the air bag 26 in the opening assembly is put into the patient's mouth, and the air bag 26 is inflated into the air bag 26 to support the patient's mouth. Then slowly extend the introduction pipe 1 into the patient's digestive tract, and use the micro camera set at the end of the introduction pipe 1 and its external electrically connected display screen to view the internal conditions of the patient's digestive tract until the clamp 3 at the end of the introduction pipe 1 reaches the position of the foreign body. , manually control the opening and closing of the clamp 3 so that the clamp 3 can stably clamp the foreign object, and then use the multiple sets of outer cover plates 18 in the casing assembly to surround the foreign object, and then slowly extract the foreign object, and then remove the foreign object from the digestive tract. , the present invention can stably grasp the foreign body when extracting the foreign body in the digestive tract, and protect the patient's digestive tract tissue during the process of extracting the foreign body, so as to avoid secondary damage to the digestive tract tissue during the process of extracting the foreign body.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (6)

1. Alimentary canal foreign matter extraction device, including importing clamp (3) that pipeline (1) and its end set up, offered friction line (17), its characterized in that on clamp (3): the tail end of the inlet pipeline (1) is provided with a clamp (3) for manually controlling opening and closing;

the side, close to the clamp (3), of the inlet pipeline (1) is provided with a protective cylinder assembly for protecting digestive tract tissues, the protective cylinder assembly comprises a plurality of groups of outer cover plates (18) arranged on the peripheral side edge of the inlet pipeline (1), and a sealing assembly is arranged between the adjacent outer cover plates (18);

the guide-in pipeline (1) is internally provided with an outward-stretching assembly for driving a plurality of groups of outer cover plates (18) to move, and the movement modes of the plurality of groups of outer cover plates (18) are synchronous opposite or opposite and move towards the central axis direction of the guide-in pipeline (1);

the inlet pipeline (1) is also provided with a port supporting component for preventing the oral cavity of a patient from being closed, and the port supporting component comprises an air bag (26) which is freely inflated and deflated;

one end of an L-shaped rod (4) is fixedly connected to the clamp (3), the middle part of the L-shaped rod (4) is rotationally connected to the inlet pipeline (1) through a rotating pin shaft, one end of a swinging rod (5) is rotationally connected to the other end of the L-shaped rod (4) through a rotating pin shaft, the other end of the swinging rod (5) is rotationally connected to a rectangular plate (7) through a rotating pin shaft, the tail end of a first pull rope (8) is fixedly connected to the rectangular plate (7), and a reset assembly for enabling the clamp (3) to recover to an initial state is arranged at the head end of the first pull rope (8); the reset assembly comprises an adjusting cylinder (2) fixedly connected to the head end of the inlet pipeline (1), a first pull rope (8) penetrates through the inlet pipeline (1) and the adjusting cylinder (2) through a channel and is fixedly connected with a pull knob (9), one end of a first spring (10) is fixedly connected to the pull knob (9), the other end of the first spring (10) is fixedly connected to an inner ring part (111) integrally formed by an annular seat (11), the annular seat (11) is slidably connected to the adjusting cylinder (2) through a sliding groove, and a clamping assembly for limiting movement of the annular seat (11) is arranged on the annular seat (11); the annular seat (11) further comprises an integrally formed outer annular portion (112), the clamping assembly comprises an arc-shaped plate (14) arranged on the outer annular portion (112), the arc-shaped plate (14) is rotationally connected to the outer annular portion (112) through a rotating shaft, the outer annular portion (112) is fixedly connected with a stretching plate (13), one end of a second spring (15) is fixedly connected to the stretching plate (13), the other end of the second spring (15) is fixedly connected to one end of the arc-shaped plate (14), the arc-shaped plate (14) is obliquely arranged, the other end of the arc-shaped plate (14) is fixedly connected with clamping blocks, and a plurality of groups of clamping grooves (16) which are distributed at equal intervals are formed in positions corresponding to the clamping blocks of the adjusting cylinder (2); the outer stretching assembly comprises a winding and unwinding rod (20), one end of the winding and unwinding rod (20) is rotatably connected to an outer cover plate (18) through a rotating shaft, the other end of the winding and unwinding rod (20) is rotatably connected to a cross rod (21) through the rotating shaft, the cross rod (21) is slidably connected with the side wall of the ingress pipe (1) through a ring seat cavity (25) formed in the side wall of the ingress pipe (1), the cross rod (21) is fixedly connected with a pulling ring seat (22), the pulling ring seat (22) is located in the ring seat cavity (25), a second pull rope (23) is fixedly connected to the pulling ring seat (22), and the second pull rope (23) penetrates through the ingress pipe (1) through a channel and is fixedly connected to the inner ring portion (111).

2. The gastrointestinal foreign matter extraction device according to claim 1, wherein: the position of the ingress pipeline (1) corresponding to the L-shaped rod (4), the swing rod (5) and the rectangular plate (7) is provided with a containing cavity (6).

3. The gastrointestinal foreign matter extraction device according to claim 1, wherein: the inner wall of the adjusting cylinder (2) is fixedly connected with a limiting ring (12), and the limiting ring (12) is positioned at one side of the inner ring part (111) close to the pull knob (9).

4. The gastrointestinal foreign matter extraction device according to claim 3, wherein: when the second spring (15) is in a natural extension state, the clamping blocks on the arc-shaped plate (14) are positioned in the clamping grooves (16).

5. The gastrointestinal foreign matter extraction device according to claim 1, wherein: the sealing assembly comprises a cover plate cavity (24) which is arranged on the outer cover plate (18) and used for accommodating the connecting cover plate (19), the connecting cover plate (19) is connected to the inner wall of the outer cover plate (18) in a sliding way, and the connecting cover plate (19) is positioned at the connecting position of two adjacent groups of outer cover plates (18).

6. The gastrointestinal foreign matter extraction device according to claim 1, wherein: the air bag (26) is of an annular structure, the middle supporting plate (30) is fixedly connected to the air bag (26), a through groove for the inlet pipe (1) to penetrate is formed in the middle supporting plate (30), a hollow balloon (28) is connected to one side of the air bag (26) in a penetrating mode through the air inlet pipe (27), an air outlet pipe (29) is fixedly connected to the other end of the air bag (26), and a sealing plug (31) is connected to the air outlet pipe (29) in a threaded mode.