Foreign body taking-out auxiliary equipment for otolaryngology department

By designing an auxiliary device for foreign body removal in otolaryngology, and utilizing an airbag ring to expand the cavity space and clamp operation, the difficulties of clamping and friction-induced detachment of traditional removal forceps in obstruction situations have been solved, achieving efficient and safe foreign body removal.

CN120837159AInactive Publication Date: 2025-10-28THE FIRST AFFILIATED HOSPITAL OF HEBEI NORTH UNIV
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Patent Information

Application Number
CN202511277097.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-09
Publication Date
2025-10-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Traditional foreign body retrieval forceps are difficult to insert between the foreign body and the tissue cavity wall when the tissue cavity is tightly blocked. Furthermore, friction between the foreign body and the tissue can easily cause the forceps to fall off, reducing the success rate of retrieval and increasing the risk of tissue damage.

Method used

An auxiliary device for foreign body removal in otolaryngology was designed, including an insertion tube, clamps, a traction drive mechanism, an airbag ring, an electromagnetic column, and a miniature camera. By expanding the tissue cavity space, a clamping operating space is formed, and the airbag ring is used to reduce friction, ensuring stable clamping of the foreign body.

Benefits of technology

It effectively improves the success rate of foreign body removal, reduces the risk of dislodgement, minimizes tissue friction damage, and enhances the removal effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of medical instrument auxiliary equipment, and discloses foreign body extraction auxiliary equipment for the otolaryngology department. The two groups of clamps are symmetrically distributed and are positioned at one end of the extending pipe; the traction driving mechanism is arranged on the extending pipe and is used for driving the two groups of clamps to open and close for clamping; the annular piece is arranged at one end of the stretching-in pipe in a sleeving mode, the space in a tissue cavity can be effectively enlarged, a gap is formed between tissue and foreign matter, sufficient operation space is provided for the clamp, the problem that a traditional instrument is inconvenient to clamp is easily solved, the success rate of taking out the foreign matter is increased, and in the taking-out stage, the falling risk in the foreign matter taking-out process is greatly reduced; friction between the foreign matter and tissue is reduced, it is ensured that the foreign matter can be stably controlled in the whole taking-out process, the success rate of taking out the foreign matter is increased, the defect that a traditional instrument falls off due to friction is overcome, the use effect of the structure is improved, and the actual use requirement is met.
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Description

Technical Field

[0001] This invention relates to the field of medical device auxiliary equipment technology, specifically to an auxiliary device for foreign body removal in otolaryngology. Background Technology

[0002] In otolaryngology clinical practice, the accidental entry of foreign bodies into the nasal cavity, ear canal, or pharynx is extremely common, especially among children, the elderly, and individuals with cognitive impairment. If such foreign bodies are not removed promptly and safely, they can cause complications such as local mucosal damage, infection, and bleeding. In severe cases, they can lead to airway obstruction, tympanic membrane perforation, and damage to nasal structures, posing serious health risks to the patient. Therefore, efficient and safe foreign body removal is one of the core requirements of otolaryngology diagnosis and treatment.

[0003] Medical personnel typically use foreign body clamping instruments to remove foreign bodies. One type of foreign body clamping instrument is a long and thin forceps. In operation, the two arms of this forceps need to be inserted between the foreign body and the wall of the tissue cavity to achieve the clamping effect. However, this type of forceps is inconvenient to clamp foreign bodies when the tissue cavity is tightly blocked. Moreover, the friction between the foreign body and the tissue can easily cause the clamp to fall off, reducing the effectiveness of this device. Therefore, we have proposed an auxiliary device for foreign body removal in otolaryngology to solve the above-mentioned problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an auxiliary device for foreign body removal in otolaryngology. It solves two problems: firstly, when the cavities of the patient's ear, nose, and throat are severely blocked, the two arms of such removal forceps are difficult to extend between the foreign body and the cavity wall, failing to create effective operating space for gripping the foreign body, leading to difficulty in grasping it; secondly, even if the foreign body is managed to be grasped, the friction between the foreign body and the tissue during removal is significant, easily causing the foreign body to fall off the forceps arms. This not only reduces the success rate of foreign body removal but may also increase the risk of tissue damage and infection due to repeated operations, ultimately resulting in the poor effectiveness of traditional removal forceps.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: an auxiliary device for foreign body removal in otolaryngology, comprising an insertion tube;

[0006] Two sets of clamps are symmetrically distributed and located at one end of the tube;

[0007] A traction drive mechanism is provided on the extension tube and is used to drive the two sets of clamps to open and close for clamping.

[0008] An annular piece is sleeved on one end of the insertion tube, and an airbag ring is fixedly installed on the outer periphery of the annular piece;

[0009] An electromagnetic column slides on the insertion tube and corresponds to the annular plate; a first spring is fixedly installed between the electromagnetic column and the insertion tube.

[0010] The gas supply mechanism is located on the insertion pipe;

[0011] A miniature camera is located at one end of the inserted tube, and the other end is connected to a wire connector.

[0012] Preferably, the insertion tube has an annular groove, the annular plate can slide in the annular groove, the insertion tube has a movable groove adapted to the electromagnetic column, the electromagnetic column can slide in the movable groove, and the annular plate is made of a magnetically attracted material.

[0013] Preferably, a mounting groove adapted to the miniature camera is provided on one side of the insertion tube, the miniature camera is installed in the mounting groove of the insertion tube, one end of the wire connector passes through the insertion tube and extends to the outside of the insertion tube, and is connected to the display device.

[0014] Preferably, the traction drive mechanism includes a connecting housing fixed inside one end of the insertion tube, a movable pin slidably installed inside the connecting housing, connecting rods hinged to both sides of one end of the movable pin via hinge shafts, a fixed shaft fixed inside the connecting housing, two sets of clamps rotatably mounted on the fixed shaft via bearings, and one end of each clamp hinged to one end of a corresponding connecting rod via a rotating shaft, a housing cover fixedly connected to the end of the insertion tube away from the clamps, a lead screw threadedly connected to one end of the housing cover via a threaded hole, a movable disc provided inside the housing cover, the movable disc rotatably connected to one end of the lead screw via a bearing, a traction rope fixed to one end of the movable pin, and the other end of the traction rope passing through the housing cover and fixedly connected to the movable disc.

[0015] Preferably, a second spring is fixedly installed between the two sets of connecting rods, and in the initial state of the second spring, the two sets of clamps are in the extended state.

[0016] Preferably, a protrusion is fixed on the outer surface of the movable disk, and a groove matching the protrusion is provided on the inner side wall of the housing cover. The protrusion slides in the groove to limit the movement of the movable disk.

[0017] Preferably, the gas supply mechanism includes a gas delivery pipe disposed within the insertion pipe, one end of which is fixedly connected to an annular plate and extends between the annular plate and the airbag ring. A fixing plate is fixed to one end of the outer surface of the housing cover, and an annular pressing pump is sleeved on the outside of the fixing plate. One side of the annular pressing pump is fixedly connected to the fixing plate, and a connecting pipe is fixedly installed on the fixing plate. One end of the connecting pipe is connected to the output end of the annular pressing pump, and a first control valve and a second control valve are respectively installed on the connecting pipe. The other end of the gas delivery pipe is fixed to and communicates with the connecting pipe, and the first control valve and the second control valve are located on both sides of the gas delivery pipe.

[0018] Preferably, a pressing plate is fitted outside the housing cover, and the pressing plate and the annular pressing pump are fixedly connected on the side away from the fixed plate. Multiple sets of third springs are fixed between the fixed plate and the pressing plate.

[0019] Preferably, the annular groove of the insertion tube is provided with an annular tube, the surface of the annular tube is provided with multiple sets of drainage holes, a conduit is fixedly connected to the surface of the annular tube, one end of the conduit passes through the insertion tube, and the other end is connected to the output end of the syringe, and the syringe stores injection liquid.

[0020] Preferably, the injection solution is glycerol, and the annular tube and the insertion tube are fixedly connected.

[0021] Beneficial effects

[0022] This invention provides an auxiliary device for foreign body removal in otolaryngology. Compared with the prior art, it has the following advantages:

[0023] This ENT foreign body removal auxiliary device effectively expands the space within the tissue cavity, creating a gap between the tissue and the foreign body. This provides ample operating space for the clamps, easily solving the problem of inconvenient clamping with traditional instruments and improving the success rate of foreign body removal. During the removal phase, it significantly reduces the risk of foreign body dislodgement, minimizes friction between the foreign body and the tissue, and ensures stable control of the foreign body throughout the removal process. This improves the success rate of foreign body removal, overcomes the drawbacks of traditional instruments that cause clamping and dislodgement due to friction, enhances the effectiveness of this structure, and meets practical usage needs. Attached Figure Description

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 For the present invention Figure 1 A schematic diagram of the method structure at point A;

[0026] Figure 3 This is a partial cross-sectional view of the structure of the insertion tube of the present invention;

[0027] Figure 4 For the present invention Figure 3 A magnified structural diagram at point B;

[0028] Figure 5 This is a cross-sectional view of the connecting shell structure of the present invention;

[0029] Figure 6 This is a cross-sectional view of the housing structure of the present invention.

[0030] In the diagram: 101, Insertion tube; 102, Clamp; 103, Annular plate; 104, Airbag ring; 105, First spring; 106, Miniature camera; 107, Wire connector; 108, Annular tube; 109, Electromagnetic column; 2. Traction drive mechanism; 201, Connecting housing; 202, Moving pin; 203, Traction rope; 204, Connecting rod; 205, Second spring; 206, Housing cover; 207, Lead screw; 208, Moving disc; 3. Air supply mechanism; 301, Air supply pipe; 302, Fixed disc; 303, Connecting pipe; 304, First control valve; 305, Second control valve; 306, Annular press pump; 307, Pressing disc; 308, Third spring. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] like Figure 1-6 As shown:

[0033] An auxiliary device for foreign body removal in otolaryngology includes an insertion tube 101;

[0034] Two sets of clamps 102 are symmetrically distributed and located at one end of the insertion tube 101;

[0035] A traction drive mechanism 2, mounted on the insertion tube 101, is used to drive the opening and closing of two sets of clamps 102. The traction drive mechanism 2 includes a connecting housing 201 fixed to one end of the insertion tube 101. A movable pin 202 is slidably installed inside the connecting housing 201. Connecting rods 204 are hinged to both sides of one end of the movable pin 202 via hinge shafts. A fixed shaft is fixed inside the connecting housing 201. The two sets of clamps 102 are rotatably mounted on the fixed shaft via bearings, and one end of each clamp 102 is hinged to one end of a corresponding connecting rod 204 via a rotating shaft. The insertion tube 101 extends... One end of the clamp 102 is fixedly connected to a housing cover 206. One end of the housing cover 206 is threadedly connected to a lead screw 207 through a threaded hole. A movable disk 208 is provided inside the housing cover 206. The movable disk 208 is rotatably connected to one end of the lead screw 207 through a bearing. One end of the movable pin 202 is fixedly connected to a traction rope 203. The other end of the traction rope 203 passes through the housing cover 206 and is fixedly connected to the movable disk 208. A second spring 205 is fixedly installed between the two sets of connecting rods 204. In the initial state of the second spring 205, the two sets of clamps 102 are in the unfolded state.

[0036] The outer surface of the movable disk 208 is fixed with a protrusion, and the inner side wall of the housing cover 206 is provided with a groove that matches the protrusion. The protrusion slides in the groove to limit the movement of the movable disk 208.

[0037] An annular piece 103 is sleeved on one end of the insertion tube 101, and an airbag ring 104 is fixedly installed on the outer surface of the annular piece 103. An annular groove is provided on the insertion tube 101, and the annular piece 103 can slide in the annular groove.

[0038] The electromagnetic column 109 slides on the insertion tube 101 and corresponds to the annular plate 103. A first spring 105 is fixedly installed between the electromagnetic column 109 and the insertion tube 101. The insertion tube 101 has a moving groove adapted to the electromagnetic column 109. The electromagnetic column 109 can slide in the moving groove. The annular plate 103 is made of magnetically attracted material.

[0039] An air supply mechanism 3 is provided on the insertion pipe 101. The air supply mechanism 3 includes an air supply pipe 301 provided inside the insertion pipe 101. One end of the air supply pipe 301 is fixedly connected to the annular plate 103 and extends between the annular plate 103 and the airbag ring 104. A fixing plate 302 is fixed to one end of the outer surface of the housing cover 206. An annular pressing pump 306 is sleeved on the outside of the fixing plate 302. One side of the annular pressing pump 306 is fixedly connected to the fixing plate 302. A connecting pipe 303 is fixedly installed on the fixing plate 302. One end of the connecting pipe 303 is connected to the output end of the annular pressing pump 306. A first control valve 304 and a second control valve 305 are respectively installed on the connecting pipe 303. The other end of the air supply pipe 301 is fixed and connected to the connecting pipe 303. The first control valve 304 and the second control valve 305 are located on both sides of the air supply pipe 301.

[0040] A pressing plate 307 is fitted on the outside of the housing cover 206. The pressing plate 307 and the annular pressing pump 306 are fixedly connected to the side away from the fixed plate 302. Multiple sets of third springs 308 are fixed between the fixed plate 302 and the pressing plate 307.

[0041] A miniature camera 106 is located at one end of an insertion tube 101, and one end is connected to a wire connector 107. A mounting groove adapted to the miniature camera 106 is provided on one side of the insertion tube 101. The miniature camera 106 is installed in the mounting groove provided in the insertion tube 101. One end of the wire connector 107 passes through the insertion tube 101 and extends to the outside of the insertion tube 101, and is connected to the display device.

[0042] An annular tube 108 is provided in the annular groove of the insertion tube 101. Multiple sets of drainage holes are opened on the surface of the annular tube 108. A conduit is fixedly connected to the surface of the annular tube 108, and one end of the conduit passes through the insertion tube 101. The other end is connected to the output end of the syringe. The syringe stores an injection solution, which is glycerol. The annular tube 108 and the insertion tube 101 are fixedly connected.

[0043] In this implementation plan: When using the ENT foreign body removal auxiliary device, before use, in the initial state, the two sets of clamps 102 are in the unfolded state due to the natural extension of the second spring 205. This state facilitates subsequent insertion into the tissue cavity of the patient's ear, nose and throat. By turning the screw 207, the screw 207 rotates in the threaded hole of the housing cover 206 and drives the moving disk 208 to pull the traction rope 203. The movement of the connecting rod 204 drives the clamps 102 to rotate around the fixed axis through the hinge shaft, while compressing the second spring 205, so that the clamps 102 are in the closed state, which facilitates subsequent insertion.

[0044] like Figure 2 and 3 As shown: At the same time, after the equipment is initially positioned, the electromagnetic column 109 is energized. Since the annular plate 103 is made of magnetic material, the electromagnetic column 109 generates magnetic force to attract and fix the annular plate 103, ensuring that the annular plate 103 is locked in the annular groove of the insertion tube 101, and preventing the annular plate 103 from sliding randomly and affecting the operation in subsequent operations.

[0045] Medical staff hold the insertion tube 101 and slowly insert the end with clamps 102 into the designated location of the patient's ear, nose and throat. During the insertion, the miniature camera 106 captures internal images in real time and transmits the images to an external display device through the wire connector 107. The medical staff precisely adjusts the position of the insertion tube 101 according to the display screen to ensure that the clamps 102 are close to the area where the foreign object is located.

[0046] like Figure 6As shown: When the second control valve 305 is opened, medical personnel press the compression plate 307 by hand. The compression plate 307 drives the annular compression pump 306 to compress, delivering the gas in the annular compression pump 306 through the connecting pipe 303 and the gas delivery pipe 301 to the space between the annular plate 103 and the airbag ring 104. During the compression process, the third spring 308 between the fixed plate 302 and the compression plate 307 is compressed. When the medical personnel release the compression plate 307, the third spring 308 elastically returns to its original position, driving the compression plate 307... 7 and the annular press pump 306 return to their original state so that the next press can be performed for inflation. Since the air supply tube 301 is made of flexible material and is in a fluffy state, it will not obstruct the annular plate 103 during subsequent possible movement. As the gas is continuously filled, the airbag ring 104 gradually expands. The expanded airbag ring 104 generates uniform pressure on the surrounding tissue, squeezing the tissue outward, which increases the space in the tissue cavity, thereby forming a gap between the tissue and the foreign object that facilitates the insertion of the clamp 102.

[0047] The lead screw 207 is rotated in the reverse direction. The lead screw 207 rotates in the threaded hole of the housing cover 206 and drives the moving disk 208 to move away from the clamp 102. At this time, the tension of the previously stretched traction rope 203 decreases, and the second spring 205 begins to rebound and reset under its own elasticity, pushing the two sets of connecting rods 204 to move away from each other.

[0048] The movement of the connecting rod 204 drives the clamp 102 to rotate around the fixed axis through the hinge shaft, so that the clamp 102 is further extended. Then the power is cut off to the electromagnetic column 109, the magnetic force of the electromagnetic column 109 disappears, the first spring 105 contracts under its own elasticity, and pulls the electromagnetic column 109 to slide in the moving groove, releasing the adsorption of the annular plate 103. At this time, the insertion tube 101 can slide freely in the annular groove of the annular plate 103, which is convenient for fine adjustment of the position of the clamp 102.

[0049] Medical staff slowly push the insertion tube 101, which causes the clamp 102 to extend to the gap between the tissue and the foreign object. When the clamp 102 is precisely positioned at the gap between the foreign object and the tissue, the screw 207 is rotated forward. The screw 207 pushes the moving plate 208 to move closer to the clamp 102. The moving plate 208 pulls the traction rope 203, which causes the moving pin 202 to slide within the connecting housing 201. The moving pin 202 pulls the two sets of connecting rods 204 toward the middle through the hinge shaft. The connecting rods 204 compress the second spring 205, which in turn causes the clamp 102 to rotate around the fixed shaft and close, thus firmly clamping the foreign object.

[0050] Medical staff slowly pull the insertion tube 101. During the pulling process, since the airbag ring 104 is still in an inflated state, it generates a certain frictional force when in contact with the tissue. The inflated airbag ring 104 can continuously support the tissue cavity, keeping the internal tissue in an expanded state, effectively reducing the frictional force between the foreign body and the tissue, and reducing the risk of the foreign body falling off during the removal process.

[0051] Simultaneously, medical staff operate a syringe to inject glycerin solution into the ring tube 108 through a catheter. The glycerin is then evenly sprayed onto the tissue surface through multiple drainage holes on the surface of the ring tube 108. Glycerin has excellent lubricating properties, which on the one hand further reduces friction between the foreign body and the tissue, improving the smoothness of foreign body removal; on the other hand, it reduces friction between the airbag ring 104 and the tissue during relative movement, reducing damage to the tissue mucosa.

[0052] Continue pulling the insertion tube 101 until the clamp 102 holding the foreign object is completely pulled out of the patient's body, completing the foreign object removal operation. After the operation is completed, open the first control valve 304 to release the gas in the airbag ring 104, so that the airbag ring 104 returns to its original state, and then remove the device from the patient's body.

[0053] This design effectively expands the space within the tissue cavity, creating a gap between the tissue and the foreign object, providing ample operating space for the clamp 102. It easily solves the problem of inconvenient clamping with traditional instruments, improves the success rate of foreign object removal, significantly reduces the risk of foreign object detachment during the removal process, reduces friction between the foreign object and the tissue, ensures that the foreign object can be stably controlled throughout the removal process, improves the success rate of foreign object removal, overcomes the drawbacks of traditional instruments that cause clamping detachment due to friction, enhances the effectiveness of this structure, and meets actual usage needs.

[0054] It should be noted that during the foreign object removal process, the patient should insert the object into their mouth with the mouth facing downwards.

[0055] It should be noted that all electrical equipment involved in this product is powered by an external power source, and the power connection methods of each electrical device are existing mature technologies, which are well known to those in the field, and will not be elaborated further here.

[0056] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An auxiliary device for foreign body removal in otolaryngology, characterized in that: Including the insertion tube (101); Two sets of clamps (102) are symmetrically distributed and located at one end of the insertion tube (101); A traction drive mechanism (2) is provided on the insertion tube (101) for driving the two sets of clamps (102) to open and close for clamping; An annular piece (103) is sleeved on one end of the insertion tube (101), and an airbag ring (104) is fixedly installed on the outer periphery of the annular piece (103); An electromagnetic column (109) slides on the insertion tube (101) and corresponds to the annular plate (103). A first spring (105) is fixedly installed between the electromagnetic column (109) and the insertion tube (101). Gas supply mechanism (3) is provided on the insertion pipe (101); A miniature camera (106) is located at one end of the insertion tube (101), and the other end is connected to a wire connector (107).

2. The auxiliary device for foreign body removal in otolaryngology according to claim 1, characterized in that: The insertion tube (101) has an annular groove for sliding an annular plate (103), and the insertion tube (101) has a movable groove adapted to the electromagnetic post (109). The annular plate (103) is made of magnetically attracted material.

3. The auxiliary device for foreign body removal in otolaryngology according to claim 1, characterized in that: The insertion tube (101) has an installation slot on one side that is compatible with the miniature camera (106), and one end of the wire connector (107) passes through the insertion tube (101) and is connected to the display device.

4. The auxiliary device for foreign body removal in otolaryngology according to claim 1, characterized in that: The traction drive mechanism (2) includes a connecting housing (201) fixed inside one end of the insertion tube (101). A movable pin (202) is slidably installed inside the connecting housing (201). A connecting rod (204) is hinged to both sides of one end of the movable pin (202) through a hinge shaft. A fixed shaft is fixed inside the connecting housing (201). Two sets of clamps (102) are rotatably mounted on the fixed shaft through bearings. One end of the clamp (102) is hinged to one end of the corresponding connecting rod (204) through a rotating shaft. A housing cover (206) is fixedly connected to one end of the insertion tube (101) away from the clamps (102). A lead screw (207) is threadedly connected to one end of the housing cover (206) through a threaded hole. A movable disc (208) is provided at one end of the lead screw (207). A traction rope (203) is provided between the movable pin (202) and the movable disc (208).

5. The auxiliary device for foreign body removal in otolaryngology according to claim 4, characterized in that: A second spring (205) is fixedly installed between the two sets of connecting rods (204).

6. The auxiliary device for foreign body removal in otolaryngology according to claim 4, characterized in that: The outer surface of the movable disk (208) is fixed with a protrusion, and the inner wall of the housing cover (206) is provided with a groove that matches the protrusion.

7. The auxiliary device for foreign body removal in otolaryngology according to claim 4, characterized in that: The gas supply mechanism (3) includes a gas delivery pipe (301) disposed in the insertion pipe (101). One end of the gas delivery pipe (301) extends between the annular plate (103) and the airbag ring (104). A fixing plate (302) is fixed to one end of the outer surface of the housing cover (206). An annular pressing pump (306) is sleeved on the outside of the fixing plate (302). One side of the annular pressing pump (306) is fixedly connected to the fixing plate (302). A connecting pipe (303) is fixedly installed on the fixing plate (302). One end of the connecting pipe (303) is connected to the output end of the annular pressing pump (306). A first control valve (304) and a second control valve (305) are respectively installed on the connecting pipe (303). The other end of the gas delivery pipe (301) is fixed and connected to the connecting pipe (303).

8. The auxiliary device for foreign body removal in otolaryngology according to claim 7, characterized in that: The outer casing (206) is fitted with a pressing plate (307), which is fixedly connected to one side of the annular pressing pump (306). Multiple sets of third springs (308) are fixed between the fixing plate (302) and the pressing plate (307).

9. The auxiliary device for foreign body removal in otolaryngology according to claim 1, characterized in that: The annular groove of the insertion tube (101) is provided with an annular tube (108), and the surface of the annular tube (108) is provided with multiple sets of drainage holes. A conduit is fixedly connected to the surface of the annular tube (108), and one end of the conduit passes through the insertion tube (101), and the other end is connected to the output end of the syringe. The syringe contains injection liquid.

10. The auxiliary device for foreign body removal in otolaryngology according to claim 9, characterized in that: The injection solution is glycerol, and the annular tube (108) and the insertion tube (101) are fixedly connected.

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