A foreign body extraction device for digestive internal medicine and a manufacturing method thereof

Abstract

The present application relates to gastrointestinal endoscope accessory technical field, specifically provide a kind of foreign body extraction device for gastroenterology and its manufacturing method, device includes main air pipe and respectively communicated at both ends of main air pipe air bag cup and positive and negative pressure air pump;Air bag cup includes air bag cup framework and membrane structure;Air bag cup framework includes cup body, cup mouth air bag, support air bag, clamping air bag;The upper end of cup body is provided with suction port, and the lower end is communicated with main air pipe, and at least two opposite ends of cup body are provided with inflation port respectively;Suction port is provided with negative pressure valve, and inflation port is provided with positive pressure valve;Support air bag is supported between cup mouth air bag and cup body, and the inside of support air bag located in membrane structure is communicated with clamping air bag.The way of foreign body extraction gastrointestinal tract by negative pressure adsorption, compared with traditional jaw structure, without considering the gap between foreign body and gastrointestinal wall, without adjusting angle or orientation, with the characteristics of high operating efficiency, convenient operation.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of gastrointestinal endoscopy accessories, and particularly relates to a foreign body taking-out device for a digestive department and a manufacturing method thereof. BACKGROUND

[0002] The digestive system is composed of two parts of the digestive tract and digestive glands. The digestive tract includes the oral cavity, pharynx, esophagus, stomach, small intestine (duodenum, jejunum, ileum), and large intestine (cecum, appendix, colon, rectum, and anal canal). The part from the oral cavity to the duodenum is commonly referred to as the upper digestive tract, and the part from the jejunum and below is referred to as the lower digestive tract.

[0003] Endoscopic diagnosis and treatment technology is widely used for finding and treating gastrointestinal diseases. An electronic endoscope system mainly includes a host and a scope. The host includes a high-definition display screen, an image processor, a cold light source, etc. The scope is provided with an angle control knob, an air suction valve, an air / water valve, and an instrument channel port. One end of the scope is connected to the host, and the other end is provided with an objective lens, an air / water tube, an image sensor, and a light guide lens. In order to facilitate endoscopic diagnosis and treatment, the scope is also provided with an instrument channel, and endoscopic diagnosis and treatment equipment (or endoscopic treatment consumables) is used for diagnosis and treatment operation through the instrument channel.

[0004] Patent No. CN1931083A discloses an endoscope system with a disposable sheath. A disposable forceps channel (equivalent to an instrument channel) is arranged on the endoscope scope, and biopsy forceps are inserted into the disposable forceps channel to perform corresponding diagnosis and treatment operation. Patent No. CN118236127A discloses an endoscopic intestinal and gastric polyp resection device. The device clamps the intestinal and gastric polyp through a clamping mechanism and resects the polyp by using a resection mechanism. Patent No. CN221786560U discloses an endoscopic foreign body clamp device. The device clamps the foreign body by using a clamping rod. In the process of existing gastroscopy or diagnosis and treatment, the electronic endoscope system is often used in cooperation with a clamping device to clamp foreign bodies or biopsy tissues. The clamping device is usually designed as a clamping jaw structure.

[0005] However, some foreign bodies have certain sharp corners and acute angles, thereby forming irregular protruding structures. These protruding structures can scratch the patient's digestive tract during the taking-out process. In the process of clamping the foreign body by using the clamping jaw structure, the clamping jaw structure needs to be arranged between the foreign body and the inner wall of the digestive tract. However, in the narrow space, the shape of the foreign body is irregular, which leads to the need to adjust the orientation or clamping angle of the clamping jaw or to find a suitable gap, and the operation efficiency is low. For small particle foreign bodies, the clamping jaw structure has the problems of clamping difficulty and easy falling. SUMMARY

[0006] In response to the problems existing in the above-mentioned prior art, the present invention provides a foreign body removal device for gastroenterology and a manufacturing method thereof. The device absorbs foreign bodies through negative pressure to solve the problems that the traditional clamping structure needs to adjust the angle to clamp foreign bodies, which makes clamping difficult, has low operating efficiency, and foreign bodies are easy to fall. The device solves the problem that the traditional clamping structure easily scratches the digestive tract when clamping foreign bodies with protruding structures by using airbag expansion to clamp and wrap foreign bodies.

[0007] In the first aspect, the present invention proposes a foreign body removal device for gastroenterology, comprising: a main airway and an airbag cup and a positive and negative pressure air pump respectively connected to the two ends of the main airway; the positive and negative pressure air pumps are used to inflate or inhale air into the main airway; the airbag cup comprises an airbag cup frame and a membrane structure sealed and coated on the side wall of the airbag cup frame; the airbag cup frame comprises a cup body, a cup mouth airbag, a supporting airbag, and a clamping airbag; an air suction port is provided at the upper end of the cup body, and the lower end is connected to the main airway, and at least two opposite side ends of the cup body are respectively provided with an inflation port; the air suction port and the inflation port are both connected to the main airway; the air suction port A negative pressure valve is provided, which opens only when the positive and negative pressure air pumps are inhaling; a positive pressure valve is provided on the inflation port, which opens only when the positive and negative pressure air pumps are inflating; the cup mouth airbag is a hollow annular structure, a cup mouth airway is provided inside it, and the cup mouth airbags are spaced above the cup body; the support airbag is supported between the cup mouth airbag and the cup body, and a side wall airway is provided inside the support airbag; each of the inflation ports is connected to a support airbag, and the support airbag is also connected to the cup mouth airbag; each of the support airbags is connected to the clamping airbag on the inner side of the membrane structure.

[0008] Furthermore, the airbag cup frame also includes a shrinkable expansion component; each support airbag is equipped with a shrinkable expansion component; the shrinkable expansion component includes a flexible expansion wire and a piston plate and a magnetic plate respectively connected to the two ends of the expansion wire; the piston plate is arranged in the support airbag, and the outer edge of the piston plate is arranged against the inner wall of the support airbag; a part of the expansion wire is located in the support airbag, and the other part is located in the cup mouth airbag; the magnetic plate is arranged in the cup mouth airbag; when the positive pressure valve is opened, the magnetic plates of the two shrinkable expansion components arranged opposite to each other are brought close to each other until they are sucked tightly.

[0009] Furthermore, the retractable expansion assembly also includes a limiting ring; the limiting ring is arranged in the cup mouth airbag and close to the supporting airbag, and the expansion wire passes through the limiting ring; the inner diameter of the limiting ring is smaller than the outer diameter of the magnetic sheet.

[0010] Furthermore, a concave water storage tank is provided on the inner wall of the cup body corresponding to the air intake.

[0011] Furthermore, the water storage tank is an annular structure, and the air intake is located on the inner side of the annular structure.

[0012] Furthermore, a horizontal filter is provided at a position where the lower end of the cup body is connected to the main air pipe.

[0013] Furthermore, a plurality of spikes are distributed on the upper end of the filter screen, and each spike is provided with a barb structure.

[0014] Furthermore, a plurality of through holes communicating with the clamping airbag are provided at intervals along the height direction of the inner side of the supporting airbag.

[0015] Furthermore, the surface of the clamping airbag is provided with protrusions and depressions.

[0016] In a second aspect, the present invention further provides a method for manufacturing the above-mentioned foreign body removal device for gastroenterology, comprising the following steps:

[0017] A plurality of inflation ports are provided on the side wall of the cup body, and a positive pressure valve is installed at each inflation port; an air intake port is provided at the upper end of the cup body, and a negative pressure valve is installed at the air intake port; a hole is opened at the lower end of the cup body to connect with the main air pipe;

[0018] According to the number and position of the inflation ports, support airbags are installed, one support airbag is installed at each inflation port, and all the support airbags are connected to the cup rim airbag;

[0019] Connecting the clamping airbag to the supporting airbag to complete the assembly of the airbag cup frame;

[0020] The membrane structure is sealed and wrapped around the side wall of the airbag cup frame.

[0021] The beneficial effects of the present invention are as follows: an airbag cup is formed by a cup body, a cup mouth airbag, a supporting airbag, and a clamping airbag, and a membrane structure is sealed on the side wall of the airbag cup. An air intake port is provided on the cup body, and air is sucked by positive and negative pressure air pumps to form a negative pressure in the cup space of the airbag cup, thereby attracting foreign matter into the cup space, and positioning one end of the foreign matter at the air intake port. The foreign matter is fixed by adsorption and removed from the digestive tract together with the airbag cup. Compared with the traditional method of gripping foreign matter with a clamping claw structure and dragging the foreign matter out of the digestive tract, there is no need to consider the gap between the foreign matter and the inner wall of the digestive tract, and there is no need to adjust the angle or orientation, thus having the characteristics of high operational efficiency and convenience. Before inflation, the airbag cup is not expanded, making it easy to enter the digestive tract. Moreover, its flexible structure eliminates the need to worry about scratching the digestive tract. Small particles can be drawn into the interior of the airbag cup by the completely negative pressure, making them less likely to fall out. For larger quantities of small particles, a large number can be absorbed at once, eliminating the need to individually clamp them, resulting in highly efficient removal. Larger foreign objects are partially absorbed into the cup, where they are then clamped and wrapped by the clamping airbag, enhancing their retention and further preventing them from falling out. Additionally, the protruding parts of the foreign object can be prioritized for absorption into the cup, concealing them. The clamping airbag can then be used to wrap these protruding parts, preventing them from scratching the digestive tract during removal. By configuring a retractable expansion assembly within the support airbag, when the airbag cup enters the digestive tract in a retracted state and needs to be expanded, the support airbag is inflated to push the piston of the retractable expansion assembly upward, causing the expansion wire to move from the support airbag into the cup mouth airbag until the two magnetic plates of the retractable expansion assembly configured within the two opposing support airbags are attracted and fixed to each other, so that at least half of the circumference of the cup mouth airbag is provided with an expansion wire. The expansion wire is used to support and expand the cup mouth airbag to facilitate the smooth entry of foreign matter into the cup body, thereby improving operational efficiency. By providing a water storage tank on the inner wall of the cup mouth, mucus in the digestive tract that enters the cup body under the influence of negative pressure is allowed to flow along the inner wall of the cup body into the water storage tank, preventing it from entering the main airway and causing blockage or affecting the negative pressure adsorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of the gastroenterology foreign body removal device of the present invention, in which the air bag cup is in a contracted state;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure of the airbag cup after deployment;

[0024] Figure 3 for Figure 2 A schematic diagram of a structure in which a foreign object is absorbed in an airbag cup and the airbag is clamped to clamp the foreign object;

[0025] Figure 4It is a cross-sectional structural diagram of the cup body of the present invention in an inflated state;

[0026] Figure 5 It is a schematic cross-sectional structural diagram of the cup body of the present invention in an air-intake state.

[0027] In the figure: 1-main air pipe; 2-positive and negative pressure air pumps; 3-membrane structure; 4-cup body; 5-cup mouth airbag; 6-support airbag; 7-clamping airbag; 8-inhalation port; 9-negative pressure valve; 10-inflating port; 11-positive pressure valve; 12-expanding wire; 13-piston plate; 14-magnetic plate; 15-limiting ring; 16-water storage tank; 17-anti-overflow plate; 18-filter screen; 19-spike part; 20-through hole; 21-foreign matter. DETAILED DESCRIPTION

[0028] The following is a further detailed description of this application with reference to the accompanying drawings and specific implementations:

[0029] like Figure 1-Figure 5 As shown, the foreign body removal device for gastroenterology proposed by the present invention includes: a main airway 1 and an air bag cup and a positive and negative pressure air pump 2 respectively connected to the two ends of the main airway 1.

[0030] The main trachea 1 can be a rigid tube or a flexible tube. The main trachea 1 and the airbag cup connected to one end can serve as endoscopic diagnostic and treatment equipment or consumables for use with an electronic endoscope system. Specifically, the instrument channel on the electronic endoscope body is used to penetrate the main trachea 1. The main trachea 1 and the airbag cup at its end follow the body tube of the electronic endoscope into the digestive tract. The specific operation can be based on existing technology and will not be detailed in this embodiment.

[0031] The positive and negative pressure air pump 2 can also be a finished product on the market, which can provide inflation and suction (or exhaust) functions. The positive and negative pressure air pump 2 is used to inflate or inhale air into the main trachea 1. When inflating the main trachea 1, the air pressure in the airbag cup increases and the corresponding airbag structure expands; when inhaling or exhausting air into the main trachea 1, the air pressure in the airbag cup decreases, forming a negative pressure, which is used to adsorb or attract foreign matter 21 in the digestive tract.

[0032] The airbag cup includes an airbag cup frame and a membrane structure 3 that seals the sidewalls of the airbag cup frame. The membrane structure 3 can be a double-layer structure, covering the outer sidewalls of the airbag cup frame. A partial membrane structure 3 can also be wrapped around the connection between the airbag cup and the main air pipe 1 to ensure airtightness.

[0033] The airbag cup frame includes a cup body 4, a cup mouth airbag 5, a supporting airbag 6, a clamping airbag 7, and a shrinkage expansion component.

[0034] The upper end of the cup body 4 is provided with an air inlet 8, which can be regarded as the cup mouth of the cup body 4. The lower end of the cup body 4 is opened to communicate with the main air pipe 1. The cup body 4 is made of flexible plastic, rubber or silicone. The upper end diameter of the cup body 4 is larger than the lower end diameter.

[0035] At least two opposing side ends of the cup body 4 are provided with an inflation port 10. The two opposing inflation ports 10 can be considered a group. The sidewall of the cup body 4 can be provided with multiple groups of inflation ports 10, each group of inflation ports 10 being evenly distributed along the circumference of the cup body 4, with each group of inflation ports 10 including two inflation ports 10 radially opposed to each other along the cup body 4. In this embodiment, the cup body 4 is provided with a single group of inflation ports 10, i.e., two inflation ports 10 arranged radially along the cup body 4.

[0036] The air intake port 8 and the air charging port 10 are both connected to the main air pipe 1 , that is, the air intake port 8 , the air charging port 10 and the main air pipe 1 are all connected to the internal space of the cup body 4 .

[0037] The air inlet 8 is provided with a negative pressure valve 9, which is opened only when the positive and negative pressure air pumps 2 are inhaling. The air charging port 10 is provided with a positive pressure valve 11, which is opened only when the positive and negative pressure air pumps 2 are inflating.

[0038] Both the negative pressure valve 9 and the positive pressure valve 11 use one-way valve discs, which can be made of silicone or rubber sheets. Figure 4 、 Figure 5 As shown, the negative pressure valve 9 is hinged to the inner wall of the air intake port 8, and the negative pressure valve 9 can only be opened downward. When the positive and negative pressure air pumps 2 inhale air, negative pressure is formed inside the cup body 4, and the negative pressure valve 9 opens. The positive and negative pressure air pumps 2 further absorb the air in the internal space of the airbag cup (the space above the cup body 4), further forming a negative pressure, and adsorbing the foreign matter 21 at the cup mouth airbag 5 until the foreign matter 21 is sucked into the airbag cup or is close to the port of the main air pipe 1.

[0039] The positive pressure valve 11 is hinged to the inner wall of the inflation port 10 and can only be opened upward. When the positive and negative pressure air pumps 2 are inflating, the negative pressure valve 9 is pushed upward until it closes, and the air inside the cup body 4 overflows from the inflation port 10, breaking open the positive pressure valve 11 and entering the support airbag 6, gradually filling the clamping airbag 7 and the cup rim airbag 5.

[0040] It should be noted that the inflation and suction of the positive and negative pressure air pumps 2 can be performed alternately. When the airbag cup enters the digestive tract, it is in an uninflated state, or the positive pressure valve 11 is manually opened and the negative pressure valve 9 is manually closed in advance, and the positive and negative pressure air pumps 2 are started to suction, and the air inside the cup mouth airbag 5, the supporting airbag 6 and the clamping airbag 7 is extracted, so that the airbag cup frame is formed as shown in FIG. Figure 1As the negative pressure valve 9 and the positive pressure valve 11 both adopt one-way valve flaps, their manual opening and closing are relatively simple, and can be manually opened or closed by pinching with hands or pushing with tweezers.

[0041] When the airbag cup enters the digestive tract, it is first inflated to properly expand the cup mouth airbag 5, the support airbag 6 and the clamping airbag 7. The clamping airbag 7 is made of flexible rubber or latex material, which expands after inflation and can continue to expand as the inflation pressure increases. When the airbag cup enters the digestive tract, the clamping airbag 7 is properly inflated to the point where it is as small as 1 / 4 of the cup mouth. Figure 2 If the inflation and pressure are continued, it can expand to Figure 3 As shown in the state, the cup airbag 5 and the support airbag 6 are inflated to Figure 2 It will not expand further after the state shown.

[0042] When the airbag cup is inflated to Figure 2 After the state shown, the positive and negative pressure air pumps 2 are switched to the suction state, at which time the positive pressure valve 11 is closed and the negative pressure valve 9 is opened, and the foreign matter 21 can be sucked out. Of course, before the positive and negative pressure air pumps 2 are switched to the suction state, the cup mouth airbag 5 should have been expanded and located near the foreign matter 21, or the foreign matter 21 should have partially or completely entered the interior of the airbag cup.

[0043] When the foreign body 21 is sucked into the airbag cup or cup body 4, the positive and negative pressure air pumps are switched to the inflation state, causing the clamping airbag 7 to further expand to Figure 3 In the state shown, the foreign body 21 is clamped and wrapped. During this process, the positive and negative pressure air pumps can be switched alternately between the inflation state and the suction state. After the clamping airbag 7 wraps or clamps the foreign body 21, the positive and negative pressure air pumps are switched to the suction state again, so that the clamping airbag 7 further wraps the foreign body 21. In this process, the suction pressure can be increased so that the membrane structure 3 also tightens and wraps the foreign body 21. The foreign body 21 and the airbag cup are gathered together as a whole, and then the foreign body 21 is dragged until the foreign body 21 is removed. Due to the wrapping and clamping effect of the clamping airbag 7 and the membrane structure 3, the foreign body 21 is difficult to fall or fall off, and will not scratch the digestive tract. And because the foreign body 21 is pre-fixed by negative pressure adsorption, compared with the traditional method of clamping the foreign body 21 with pliers or tweezers, the cup mouth airbag 5 does not need to be inserted between the foreign body 21 and the inner wall of the digestive tract. Moreover, the cup mouth airbag 5 is a flexible structure and will not accidentally damage the digestive tract during operation, which is safer and more efficient. When clamping the foreign body 21 with conventional clamps or tweezers, the digestive tract may be punctured or scratched due to operational errors.

[0044] The surface of the clamping air bag 7 is provided with protrusions and recesses, the protrusions can be protruding balls, and the recesses can be grooves. A plurality of protrusions and a plurality of recesses are arranged on the surface of the clamping air bag 7. The friction between the clamping air bag 7 and the foreign matter 21 or the biopsy tissue is increased, so that the foreign matter 21 or the biopsy assembly is prevented from falling off. The protrusions can also be sharp structures that can be inserted into the foreign matter 21 or the biopsy tissue.

[0045] In order to quickly expand the air bag cup in the contracted state and open the cup mouth air bag 5, the two supporting air bags 6 of the embodiment are respectively provided with a contraction type flaring assembly; the contraction type flaring assembly comprises a flexible flaring wire 12 and a piston sheet 13 and a magnetic attraction sheet 14 connected to the two ends of the flaring wire 12 respectively; the flaring wire 12 is a flexible thin copper wire, one end of which is located in the supporting air bag 6, and the other end is located in the cup mouth air bag 5. When one end is subjected to an axial pressure, it will move axially to the other end, at the same time, the bending part of the flaring wire 12 will change, and the bending part is always located at the junction of the supporting air bag 6 and the cup mouth air bag 5.

[0046] The piston sheet 13 is arranged in the supporting air bag 6, and the outer edge of the piston sheet 13 is arranged in close contact with the inner wall of the supporting air bag 6; the flaring wire 12 is partially located in the supporting air bag 6 and partially located in the cup mouth air bag 5; the magnetic attraction sheet 14 is arranged in the cup mouth air bag 5; when the positive pressure valve 11 is opened, the magnetic attraction sheets 14 of the two contraction type flaring assemblies arranged oppositely are attracted to each other until they are tightly attracted.

[0047] When the positive pressure valve 11 is opened, high-pressure air enters the side wall air channel of the supporting air bag 6, extruding the piston sheet 13, the piston sheet 13 is subjected to an upward thrust and gradually rises in the side wall air channel, while the flaring wire 12 gradually transfers from the side wall air channel to the cup mouth air channel of the cup mouth air bag 5, and the two magnetic attraction sheets 14 of the two contraction type flaring assemblies gradually approach each other until they are fixed by attraction. At this time, the piston sheet 13 at the other end of the flaring wire 12 is just located at the top of the supporting air bag 6, and the height of the piston sheet 13 is higher than the height of the through hole 20 connecting the supporting air bag 6 and the clamping air bag 7. Under the limitation of the piston sheet 13, more air entering the side wall air channel can enter the clamping air bag 7 through the through hole 20. Since the supporting air bag 6 is a flexible structure, the edge of the piston sheet 13 cannot be completely sealed with the inner wall of the supporting air bag 6, so when the piston sheet 13 is lifted by most of the air pressure, a small part of the air flows from the gap between the piston sheet 13 and the inner wall of the supporting air bag 6 to the cup mouth air bag 5, realizing the expansion of the cup mouth air bag 5 and opening the cup mouth of the air bag cup.

[0048] To prevent the piston plate 13 from entering the cup-mouth airbag 5 or the magnetic plate 14 from entering the support airbag 6, a limiting ring 15 is provided near the support airbag 6 of the cup-mouth airbag 5. The flared wire 12 passes through the limiting ring 15. When the piston plate 13 is pushed upward, it pushes the flared wire 12 upward. After the flared wire 12 encounters the limiting ring 15, the force direction changes and it bends at the limiting ring 15, thereby moving within the cup-mouth airbag 5. The inner wall of the limiting ring 15 is provided with a tapered slope or arc surface to better guide the flared wire 12 to bend.

[0049] After the two expanding wires 12 of the two contraction expanding components are attracted to each other through the magnetic sheet 14, the length of the two expanding wires 12 is half of the circumference of the cup mouth airbag 5, which provides effective support for the cup mouth of the airbag cup and can also open the cup mouth airbag 5 to avoid excessive collapse.

[0050] When the airbag cup is in Figure 1 In the contracted state shown, most of the expanded metal wire 12 is in the supporting airbag 6, which can provide effective support for the airbag cup to remain upright. When the airbag cup moves in the digestive tract, it prevents the airbag cup from changing its direction due to the bending of the cup mouth, which affects the expanded state and thus affects the operating efficiency.

[0051] like Figure 4 、 Figure 5 As shown, the inner wall of the cup body 4 corresponding to the air inlet 8 is provided with a concave water storage groove 16. The water storage groove 16 is an annular structure, and the air inlet 8 is located on the inner side of the annular structure. When inhaling, the digestive tract mucus on the inner wall of the airbag cup and the inner wall of the cup body 4 will flow down into the water storage groove 16. The edge of the notch of the water storage groove 16 away from the inner wall of the cup body 4 is provided with a curved anti-overflow sheet 17. The height of the anti-overflow sheet 17 is higher than the top height of the water storage groove 16, and the end of the anti-overflow sheet 17 is curved toward the inside or bottom of the water storage groove 16. The digestive tract mucus that flows down from the inner wall of the airbag cup and the inner wall of the cup body 4 into the water storage groove 16 is difficult to escape from the water storage groove 16 under the action of negative pressure.

[0052] In order to prevent the main air pipe 1 from being blocked, a horizontal filter screen 18 is provided at the position where the lower end of the cup body 4 communicates with the main air pipe 1 .

[0053] The upper end of the filter 18 is provided with a plurality of spikes 19, each of which is provided with a barb structure. When a foreign object 21 or biopsy tissue is partially pressed against the filter 18 under the action of negative pressure and is pierced by the spikes 19, the barb structure prevents the foreign object 21 or biopsy tissue from being separated from the filter 18, further preventing the foreign object 21 from falling during removal and improving the removal efficiency.

[0054] Based on the same inventive concept, the present invention also proposes a method for manufacturing the above-mentioned foreign body removal device for gastroenterology, comprising the following steps:

[0055] A plurality of inflation ports 10 are provided on the side wall of the cup body 4, and a positive pressure valve 11 is installed at each inflation port 10; an air intake port 8 is provided at the upper end of the cup body 4, and a negative pressure valve 9 is installed at the air intake port 8; a hole is opened at the lower end of the cup body 4 to connect it to the main air pipe 1; the positive pressure valve 11 and the negative pressure valve 9 are installed using hinges.

[0056] According to the number and position of the inflation ports 10, the support airbags 6 are installed, with one support airbag 6 installed at each inflation port 10, and all the support airbags 6 are connected to the cup-mouth airbags 5; the support airbags 6 are bonded to the inflation ports 10, and the shrinkage expansion assembly is placed inside the support airbags 6. One end of the expansion wire 12 of the shrinkage expansion assembly is passed through the limit ring 15 and the magnetic plate 14 in sequence, and the other end is connected to the piston plate 13. The piston plate 13 is inside the support airbag 6, and the magnetic ring and the limit ring 15 are placed inside the cup-mouth airbag 5. The limit ring 15 is bonded and fixed to the cup-mouth airbag 5, and the position of the expansion wire 12 is adjusted so that it is partially located inside the support airbag 6 and partially located inside the cup-mouth airbag 5. Finally, the upper end of the support airbag 6 is bonded to the cup-mouth airbag 5 to ensure that the side wall airway is connected to the cup-mouth airway.

[0057] The clamping airbag 7 is connected to the supporting airbag 6, and then bonded and fixed to complete the assembly of the airbag cup frame.

[0058] The membrane structure 3 is sealed around the sidewalls of the airbag cup frame. The membrane structure 3 is bonded to the support airbag 6 and the cup mouth airbag 5. The bottom of the membrane structure 3 surrounds the main air pipe 1 and is bonded in place. The airbag cup is now assembled.

[0059] Finally, the main airway 1 is passed through the instrument channel on the body of the electronic endoscope and connected to the positive and negative pressure air pumps 2.

[0060] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the principles of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A foreign body removal device for gastroenterology, characterized in that: include: The main air pipe and the airbag cup and positive and negative pressure air pumps respectively connected to the two ends of the main air pipe; the positive and negative pressure air pumps are used to inflate or inhale air into the main air pipe; the airbag cup includes an airbag cup frame and a membrane structure sealed and covered on the side wall of the airbag cup frame; the airbag cup frame includes a cup body, a cup mouth airbag, a supporting airbag, and a clamping airbag; the upper end of the cup body is provided with an air intake port, and the lower end is connected to the main air pipe, and at least two opposite side ends of the cup body are respectively provided with an inflation port; the air intake port and the inflation port are both connected to the main air pipe; the air intake port is provided with a negative pressure valve, and the negative pressure valve It is only opened when the positive and negative pressure air pumps are inhaling; the inflation port is provided with a positive pressure valve, and the positive pressure valve is only opened when the positive and negative pressure air pumps are inflating; the cup mouth airbag is a hollow annular structure, a cup mouth airway is provided inside it, and the cup mouth airbags are spaced above the cup body; the support airbag is supported between the cup mouth airbag and the cup body, and a side wall airway is provided inside the support airbag; each of the inflation ports is connected to a support airbag, and the support airbag is also connected to the cup mouth airbag; each of the support airbags is connected to the clamping airbag on the inner side of the membrane structure; The inner wall of the cup body corresponding to the air inlet is provided with a concave water storage tank; A horizontal filter is provided at the position where the lower end of the cup body communicates with the main air pipe; The inner side of the supporting airbag is provided with a plurality of through holes communicating with the clamping airbag at intervals along the height direction thereof.

2. A foreign body removal device for gastroenterology according to claim 1, characterized in that: The airbag cup frame also includes a shrinkable expansion component; each support airbag is equipped with a shrinkable expansion component; the shrinkable expansion component includes a flexible expansion wire and a piston plate and a magnetic plate respectively connected to the two ends of the expansion wire; the piston plate is arranged in the support airbag, and the outer edge of the piston plate is arranged against the inner wall of the support airbag; a part of the expansion wire is located in the support airbag, and the other part is located in the cup mouth airbag; the magnetic plate is arranged in the cup mouth airbag; when the positive pressure valve is opened, the magnetic plates of the two shrinkable expansion components arranged opposite to each other are brought close to each other until they are sucked tightly.

3. A foreign body removal device for gastroenterology according to claim 2, characterized in that: The retractable expansion assembly also includes a limiting ring; the limiting ring is arranged in the cup mouth airbag and close to the supporting airbag, and the expansion wire passes through the limiting ring; the inner diameter of the limiting ring is smaller than the outer diameter of the magnetic sheet.

4. A foreign body removal device for gastroenterology according to claim 1, characterized in that: The water storage tank is an annular structure, and the air intake is located on the inner side of the annular structure.

5. The foreign body removal device for gastroenterology according to claim 1, characterized in that: A plurality of sharp spikes are distributed on the upper end of the filter screen, and the sharp spikes are provided with barb structures.

6. A foreign body removal device for gastroenterology according to claim 1, characterized in that: The surface of the clamping airbag is provided with convex and concave structures.

7. A method for manufacturing the foreign body removal device for gastroenterology according to claim 1, characterized in that: The following steps are involved: A plurality of inflation ports are provided on the side wall of the cup body, and a positive pressure valve is installed at each inflation port; an air intake port is provided at the upper end of the cup body, and a negative pressure valve is installed at the air intake port; a hole is opened at the lower end of the cup body to connect with the main air pipe; According to the number and position of the inflation ports, support airbags are installed, one support airbag is installed at each inflation port, and all the support airbags are connected to the cup mouth airbag; Connecting the clamping airbag to the supporting airbag to complete the assembly of the airbag cup frame; The membrane structure is sealed and wrapped around the side wall of the airbag cup frame.

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