Oral foreign body removing device

Abstract

The oral foreign body taking-out device comprises a clamping part connected with a holding part, and the clamping part comprises a cylindrical shell, a cutting component and a clamping moving mechanism; the outer wall of the cylindrical shell is connected with the holding part, and an opening is formed in the side, back to the holding part, of the cylindrical shell; the cutting component is arranged in the cylindrical shell and comprises a pair of tool bits and a shearing driving part, the tool bits are located on the upper side and the lower side of the opening respectively and arranged in a staggered mode, an included angle is formed between the two tool bits and the axis of the cylindrical shell, and the output end of the shearing driving part is connected with the two tool bits and used for driving the tool bits to cut off fishbone entering from the opening; the clamping and moving mechanism is arranged in the cylindrical shell and used for clamping and moving the two cut fishbone sections, so that the two ends of the fishbone are shrunk into the cylindrical shell; according to the fishbone taking-out device, the clamped fishbone can be firstly cut off, and the two cut-off fishbone sections are clamped and contracted into the cylindrical shell, so that the problem that mucous membranes are scratched by the fishbone in the taking-out process, and infection is caused is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to an oral foreign body removal device. Background Art

[0002] In the field of oral medicine, foreign body entrapment is a common clinical emergency, among which the most common is the accidental swallowing of fish bones, which causes the fish bone foreign body to be stuck in the digestive tract. If this foreign body is not handled properly, it may lead to serious complications such as parapharyngeal space infection, esophageal perforation, and even aortic rupture. Therefore, it is necessary to go to a specialized medical department and use professional methods to remove the fish bone.

[0003] When removing foreign bodies in the digestive tract, the traditional method is generally to use an endoscope in conjunction with a foreign body forceps to remove them. Although this method is convenient, it can only be used when there is an angle to remove the fishbone. In some cases where the fishbone is stuck in the esophageal wall, there is no angle to remove the fishbone. When the fishbone is forcibly pushed or pulled out with the foreign body forceps, the tip of the fishbone will scratch the digestive tract mucosa, causing local bleeding. After the mucosa is damaged, bacteria invade and may cause infection. In order to solve the problem of easily scratching the mucosa during fishbone removal, the existing technology has made improvements based on the foreign body forceps. By setting some protective structures and angle adjustment structures on the clamping parts, after clamping the fishbone foreign body, the protective structure is used to cover the periphery of the fishbone and the angle adjustment structure is used to adjust the position of the fishbone, so that the tip of the fishbone does not contact the mucosa during movement, thereby avoiding scratching the mucosa. However, this method is that when the two ends of the fishbone are stuck in the esophageal mucosa, it is not possible to remove the fishbone without injury. For example, the patent with publication number CN111658101B discloses a foreign body removal device for gastroenterology, which uses two foreign body clamps to clamp the fish bone, and then the foreign body clamping device needs to be pulled outward. During the extraction process, the angle is adjusted to extract the foreign body that has penetrated the esophagus from the penetration site, and after the foreign body is clamped, a protective device is used to cover the foreign body so that the esophagus will not be scratched during the foreign body removal process, thereby causing secondary damage. However, this method can remove fish bones that are stuck in the mucosal wall at one end, but for fish bones that are stuck in the mucosal wall at both ends, there is no space for removal. Even if a spreading structure is set to spread the esophageal wall, the deformation of the esophageal wall and the fish bone will produce relative movement during the spreading process, and the problem of being scratched by the fish bone still exists. Another example is the patent with publication number CN119970191A, which discloses a foreign body forceps for respiratory medicine. By arranging a rotating block and a traction-type rotating mechanism on the clamp, when a sharp foreign body such as a fish bone is clamped, the traction-type rotating mechanism drives the rotating block to rotate to adjust the angle of the foreign body, so that the sharp foreign body is rotated and the tip of the sharp foreign body is away from the inner wall of the respiratory tract to avoid scratching between the foreign body and the respiratory tract. However, for a fish bone with both ends stuck in the mucosal wall, during the initial rotation process, there is no avoidance space between the mucosal wall and the tips of the fish bone on both sides. Therefore, at the moment of initial rotation, the fish bone will still scratch the mucosa. Summary of the Invention

[0004] The purpose of the present invention is to provide an oral foreign body removal device to solve the problem that existing oral foreign body removal devices are difficult to remove fishbone foreign bodies stuck on the mucosal wall without damage.

[0005] The technical solution of the present invention is: An oral foreign body removal device comprises a cylindrical shell, an outer wall of which is connected to the gripping portion, an opening being provided on a side of the cylindrical shell opposite to the gripping portion, the opening being arranged along the axial direction of the cylindrical shell for guiding fish bones to enter; a cutting member being arranged within the cylindrical shell, the cutting member comprising a pair of cutter heads and a shearing drive member, the pair of cutter heads being respectively located on the upper and lower sides of the opening and being staggered, the two cutter heads forming an angle with the axis of the cylindrical shell, the output end of the shearing drive member being connected to the two cutter heads for driving the pair of cutter heads to cut off the fish bones entering from the opening, and the cut section being an inclined surface; a clamping and moving mechanism being arranged inside the cylindrical shell, the clamping and moving mechanism being used to clamp and move the two cut fish bones so that the two ends of the fish bones are retracted into the inside of the cylindrical shell.

[0006] Preferably, as a further improvement of the present invention, the opening includes a first opening portion and a second opening portion, the cross-section of the first opening portion is V-shaped, the cross-section of the second opening portion is circular, the second opening portion coincides with the center line of the cylindrical shell, and the tip of the first opening portion is connected to the second opening portion.

[0007] Preferably, as a further improvement of the present invention, the clamping and moving mechanism includes a clamping member and a spacing adjustment member; the clamping member includes a pair of chuck assemblies and an opening and closing assembly, the pair of chuck assemblies are symmetrically arranged on both sides of the cutting member, the chuck assembly includes a plurality of clamping claws arranged around the axis of the cylindrical shell, wherein the gap formed between the two clamping claws is arranged opposite to the opening; the output end of the opening and closing assembly is connected to the plurality of the clamping claws for controlling the opening and closing of the plurality of clamping claws, and the two sides of the fishbone are clamped by a pair of chuck assemblies; the spacing adjustment member is connected to the pair of chuck assemblies for adjusting the horizontal spacing of the pair of chuck assemblies, so that the two pieces of fishbone cut off by the cutting member are moved close to each other and removed from the mucosa. Preferably, as a further improvement of the present invention, the opening and closing assembly includes a rotation driving part, a bidirectional screw rod and two C-shaped sliders; the rotation driving part is arranged in a mounting groove, and the mounting groove is opened on the inner top surface of the cylindrical shell and is arranged along the axial direction of the cylindrical shell; one end of the bidirectional screw rod is connected to the output end of the rotation driving part, and the other end of the bidirectional screw rod is rotatably connected to the groove wall of the mounting groove, and nut seats are connected on both sides of the bidirectional screw rod; the two C-shaped sliders are respectively correspondingly sleeved on the outer sides of multiple clamping claws in the two groups of the chuck assemblies, the top of each C-shaped slider is fixed to the nut seat, and the cross-section of each clamping claw is fan-shaped, and the thickness of the clamping claw gradually decreases in the direction away from the cutting member. Each clamping claw is connected to a horizontally arranged elastic support rod at one end away from the cutting member, and the other end of the elastic support rod is fixed with a C-shaped fixing block, and the C-shaped fixing block is connected to the inner end surface of the cylindrical shell, and the notch of the C-shaped fixing block and the notch of the C-shaped slider are arranged opposite to the opening.

[0008] Preferably, as a further improvement of the present invention, the spacing adjustment component includes two groups of magnetic components and two groups of elastic connection components; the two groups of magnetic components are respectively arranged on the inner end surfaces of both sides of the cylindrical shell, the magnetic components include a C-shaped electromagnet fixed on the inner end surface of the cylindrical shell, the C-shaped electromagnet is electrically connected to the external controller, the material of the C-shaped fixing block is ferromagnetic material, and the notch of the C-shaped electromagnet is arranged opposite to the opening; two groups of elastic abutment components are respectively arranged on both sides of the cutting component, and are located between the clamping claw and the C-shaped fixing block, the elastic abutment component includes a C-shaped mounting seat and a plurality of springs, the C-shaped mounting seat is fixed on the inner wall of the cylindrical shell, the elastic support rod is slidably passed through the C-shaped mounting seat, the notch of the C-shaped mounting seat is arranged opposite to the opening, a plurality of springs surround the outer side of the elastic support rod, and the two ends of the plurality of springs are respectively connected to the C-shaped mounting seat and the C-shaped fixing block.

[0009] Preferably, as a further improvement of the present invention, a limit block is fixed in the installation groove, the limit block is located between a pair of chuck assemblies, and a through hole for allowing a bidirectional screw rod to pass through is opened on the installation groove.

[0010] Preferably, as a further improvement of the present invention, the shear drive member includes two electric telescopic rods, wherein the cylinder body of one electric telescopic rod is fixed to the bottom of the limit block, and the end of the telescopic rod is fixed to the cutter head located on the upper side of the opening, and the cylinder body of the other electric telescopic rod is fixed to the inner bottom surface of the cylindrical shell, and the end of the telescopic rod is fixed to the cutter head located on the lower side of the opening.

[0011] Preferably, as a further improvement of the present invention, the holding portion includes a holding rod, a connecting rod and an angle adjustment assembly, one end of the connecting rod is fixed to the holding rod, and the other end of the connecting rod is connected to the cylindrical shell through the angle adjustment assembly, and the angle adjustment assembly is used to adjust the angle of the cylindrical shell.

[0012] Preferably, as a further improvement of the present invention, the angle adjustment assembly includes a U-shaped connector and two rotating tables, the back side of the opening of the U-shaped connector is fixed to the end face of the connecting rod, the cylindrical shell is located on the inner side of the opening of the U-shaped connector, the fixed ends of the two rotating tables are fixed to the inner wall of the opening of the U-shaped connector, and the rotating ends of the two rotating tables are respectively fixed to the upper and lower outer shell walls at the center of the cylindrical shell.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 0. An opening is provided on the cylindrical shell to facilitate the introduction of the fishbone into the clamping part. The two sides of the fishbone are clamped by the clamping moving mechanism, and then the two cutter heads are driven by the shearing drive component to cut the fishbone entering from the opening into two parts. After cutting, the two cut fishbone parts are clamped and moved by the clamping moving mechanism, so that the two ends of the fishbone are retracted into the inside of the cylindrical shell, thereby avoiding the problem of the fishbone scratching the mucosa and causing infection during the removal process, and achieving damage-free removal.

[0014] 2. Since the two cutter heads form an angle with the axis of the cylindrical shell, the end surface of the cut fishbone will form an inclined surface, so that during the contraction movement, the end surfaces of the two fishbones facing each other can be contracted and moved into the inside of the cylindrical shell in a staggered manner, avoiding the flat cross-section hindering the contraction movement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of an oral foreign body removal device of the present invention.

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of a clamping part in an oral foreign body removal device of the present invention.

[0017] Figure 3 The figure is a schematic front view of the internal structure of the shell of an oral foreign body removal device of the present invention.

[0018] Figure 4 For the present invention Figure 3 Schematic diagram of the cross-sectional structure at AA in FIG.

[0019] Figure 5 This is a partially enlarged structural schematic diagram of the connection between the clamping part and the gripping part of an oral foreign body removal device of the present invention.

[0020] Figure 6The figure is a schematic structural diagram of an oral foreign body removal device according to the present invention when the cylindrical shell rotates. DETAILED DESCRIPTION

[0021] The following combination Figures 1 to 6 , a detailed description of the specific embodiments of the present invention is provided. In the description of the invention, it should be understood that the terms "center," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limiting the present invention.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features; and in the description of the invention, unless otherwise specified, "plurality" means two or more.

[0023] Example 1 like Figures 1 to 4 As shown, an embodiment of the present invention provides an oral foreign body removal device, comprising a gripping portion 1 and a clamping portion connected to the gripping portion 1, the clamping portion comprising a cylindrical shell 2, a cutting member and a clamping moving mechanism; the outer wall of the cylindrical shell 2 is connected to the gripping portion 1, and an opening 21 is provided on the side of the cylindrical shell 2 facing away from the gripping portion 1, the opening 21 is arranged along the axial direction of the cylindrical shell 2, and is used to guide fish bones to enter; the cutting member is arranged in the cylindrical shell 2, and the cutting member comprises a pair of cutter heads 31 and a shearing drive member, the pair of cutter heads 31 are respectively located on the upper and lower sides of the opening 21, and are staggered, and the pair of cutter heads 3 form an angle with the axis of the cylindrical shell 2; the output end of the shearing drive member is connected to the pair of cutter heads 3, and is used to drive the pair of cutter heads 3 to cut off the fish bones entering from the opening 21, and the cutting section is an inclined surface; the clamping moving mechanism is arranged inside the cylindrical shell, and the clamping moving mechanism is used to clamp and move the two cut fish bones, so that the two ends of the fish bones are retracted into the inside of the cylindrical shell.

[0024] Among them, the clamping and moving mechanism includes a clamping member and a spacing adjustment member; the clamping member includes a pair of chuck assemblies and an opening and closing assembly, the pair of chuck assemblies are symmetrically arranged on both sides of the cutting member, the chuck assembly includes a plurality of clamping claws 4, which are arranged around the axis of the cylindrical shell 2, and the gap formed between the two clamping claws 4 is arranged opposite to the opening 21; the output end of the opening and closing assembly is connected to the plurality of clamping claws 4, which is used to control the opening and closing of the plurality of clamping claws 4, and use a pair of chuck assemblies to clamp the two sides of the fishbone; the spacing adjustment member is connected to the pair of chuck assemblies, which is used to adjust the horizontal spacing of the pair of chuck assemblies, so that the two pieces of fishbone cut off by the cutting member are moved close to each other and removed from the mucosa.

[0025] It should be noted that the diameter of the laryngeal digestive tract is usually about 20 to 25 mm. Therefore, in order to adapt to the digestive tract, the overall size of the cylindrical shell 2 in the present invention is 4 mm to 5 mm in diameter and 17 mm to 19 mm in length. The cylindrical shell 2 is made of medical polypropylene, and the internal components are all microstructures.

[0026] In this embodiment, when it is necessary to remove a fish bone stuck in the esophagus, the hand-held gripping portion 1 is inserted into the clamping portion. The clamping portion can be used in conjunction with an endoscope, or some identification results such as a camera can be set on the cylindrical shell 2 of the clamping portion to detect the position of the fish bone. The position of the gripping portion 1 is then adjusted so that the opening 21 of the cylindrical shell 2 is facing the fish bone. The cylindrical shell 2 is translated so that the fish bone passes through the opening 2 and enters the inner side of the multiple clamping claws 4. The multiple clamping claws 4 are then contracted and closed by the opening and closing assembly, thereby using a pair of chuck assemblies to clamp the fish bone on both sides, and then the fish bone is removed by cutting. The component utilizes a shearing drive component to drive a pair of cutter heads 3 to cut the fishbone entering from the opening 21 into two parts. Since the pair of cutter heads 3 form an angle with the axis of the cylindrical shell 2, the end surface of the cut fishbone will form an inclined surface. After cutting, the horizontal spacing of the pair of chuck assemblies is adjusted by the spacing adjustment component to make the pair of chuck assemblies close to each other. Since the end surface of the cut fishbone is an inclined surface, it can be dislocated during the movement, thereby facilitating the removal of the two cut fishbone parts from the clamping position and shrinking them into the cylindrical shell 2, thereby avoiding the problem of fish bones scratching the mucosa and causing infection during the removal process.

[0027] In another embodiment of the present invention, in order to facilitate the fishbone to pass through the opening 21 and enter between the plurality of clamping claws 4 to be clamped by them, Figure 2 and Figure 4As shown, in this embodiment, the opening 21 is set to two parts, including a first opening part 211 and a second opening part 212. The cross-section of the first opening part 211 is V-shaped, and the cross-section of the second opening part 212 is circular. The second opening part 212 coincides with the center line of the cylindrical shell 2. The tip of the first opening part 211 is connected to the second opening part 212. The V-shape can be used to guide and position the fishbone through the second opening part 212.

[0028] Specifically, the opening and closing assembly includes a rotary drive unit 51, a bidirectional screw rod 52 and two C-shaped sliders 53; the rotary drive unit 51 is a micro motor, which is arranged in the mounting groove 22, and the mounting groove 22 is provided on the inner top surface of the cylindrical shell 2 and is arranged along the axial direction of the cylindrical shell 2; one end of the bidirectional screw rod 52 is connected to the output shaft of the micro motor, and the other end of the bidirectional screw rod 52 is rotatably connected to the groove wall of the mounting groove 22, and nut seats are connected to both sides of the bidirectional screw rod 52; the two C-shaped sliders 53 are respectively sleeved in the two sets of chuck assemblies. The outside of each clamping claw 4, the top of each C-shaped slider 53 is fixed to the nut seat, the cross-section of each clamping claw 4 is fan-shaped, and the thickness of the clamping claw 4 gradually decreases in the direction away from the cutting member, and each clamping claw 4 is connected to a horizontally arranged elastic support rod 41 at one end away from the cutting member, and a C-shaped fixing block 42 is fixed to the other end of the elastic support rod 41. The C-shaped fixing block 42 is connected to the inner end face of the cylindrical shell 2, and the notch of the C-shaped fixing block 42 and the notch of the C-shaped slider 53 are arranged opposite to the opening 21.

[0029] In this embodiment, when not clamping, due to the presence of the elastic support rod 41, a gap is formed between adjacent clamping claws 4 to facilitate the entry of fish bones. When the fish bone passes through the gap and enters between multiple clamping claws 4, the micro motor is controlled to drive the bidirectional screw rod 52 to rotate. The rotation of the bidirectional screw rod 52 drives the nut seats arranged on both sides thereof to move closer to each other, thereby driving the two C-shaped sliders 53 to move synchronously. During the movement of the C-shaped slider 53, the outer wall of the thicker side of the clamping claw 4 will be gradually squeezed, so that the multiple clamping claws 4 will shrink synchronously, and then the fish bone will be clamped between the multiple clamping claws 4. Compared with the traditional clamping method of two clamping plates, the closed clamping of multiple clamping claws 4 can form a restriction on the fish bone from all directions, and the clamping is more stable, which can effectively avoid the problem of fish bones falling off during the clamping process.

[0030] Among them, Figure 4 As shown, there are three clamping claws 4, which are evenly distributed around at 120°. The gap between two adjacent clamping claws 4 is directly opposite to the opening 21, and the other clamping claw 4 serves as a positioning structure to limit the entering fishbone, thereby simultaneously contracting and clamping from three directions during the clamping process, making the clamping more stable.

[0031] Specifically, such as Figure 2 and Figure 3 As shown, as an optional implementation of the spacing adjustment component, the spacing adjustment component in this embodiment includes two groups of magnetic components and two groups of elastic abutment components; the two groups of magnetic components are respectively arranged on the inner end surfaces on both sides of the cylindrical shell 2, and the magnetic component includes a C-shaped electromagnet 61, which is fixed on the inner end surface of the cylindrical shell 2, and the C-shaped electromagnet 61 is electrically connected to the external controller. The material of the C-shaped fixing block 42 is ferromagnetic material, and the notch of the C-shaped electromagnet 61 is arranged opposite to the opening 21; the two groups of elastic abutment components are respectively arranged on both sides of the cutting component, and are located between the clamping claw 4 and the C-shaped fixing block 42. The elastic abutment component includes a C-shaped mounting seat 62 and a plurality of springs 63. The C-shaped mounting seat 62 is fixed on the inner wall of the cylindrical shell 2, and the elastic support rod 41 is slidably inserted into the C-shaped mounting seat 62. The notch of the C-shaped mounting seat 62 is arranged opposite to the opening 21. A plurality of springs 63 surround the outer side of the elastic support rod 41, and the two ends of the plurality of springs 63 are respectively connected to the C-shaped mounting seat 62 and the C-shaped fixing block 42.

[0032] In this embodiment, the driving part of the spacing adjustment component is based on the opening and closing component, and is realized in conjunction with two groups of magnetic suction components and two groups of elastic abutment components. When the micro motor is used to drive the bidirectional screw rod 52 to rotate so that the two C-shaped sliders 53 approach each other, so that the multiple clamping claws 4 in the two groups of chuck assemblies are closed to achieve the clamping operation on both sides of the fishbone, the C-shaped electromagnet 61 is in an energized state to adsorb the C-shaped fixing block 42, thereby keeping the positions of the multiple clamping claws 4 unchanged during the clamping process. After clamping the fishbone, the C-shaped electromagnet 61 is controlled to be de-energized. As the micro motor drives the bidirectional screw rod 52 to continue rotating, the C-shaped slider 53 will drag the multiple clamping claws 4, the multiple elastic support rods 41 and the C-shaped fixing block 42 to move toward the middle. During the movement of the C-shaped fixing block 42, the multiple springs 63 will be compressed. Therefore, the elastic force generated by the multiple springs 63 is used to make the multiple clamping claws 4 always abutted by the C-shaped slider 53 to form a closure.

[0033] Furthermore, in order to prevent the C-shaped slider 53 from moving over the thicker side of the clamping claw 4 and causing detachment, a limit block 54 is fixed in the mounting groove 22. The limit block 54 is located between a pair of chuck assemblies. A through hole is provided on the mounting groove 22 for the bidirectional screw rod 52 to pass through, and a limit is formed by the set limit block 54.

[0034] Specifically, such as Figure 3As shown, as an optional embodiment of the shear drive member, the shear drive member in this embodiment includes two electric telescopic rods 7, wherein the cylinder body of one electric telescopic rod 7 is fixed to the bottom of the limit block 54, and the end of the telescopic rod is fixed to the cutter head 3 located on the upper side of the opening 21, and the cylinder body of the other electric telescopic rod 7 is fixed to the inner bottom surface of the cylindrical shell 2, and the end of the telescopic rod is fixed to the cutter head 3 located on the lower side of the opening 21.

[0035] Specifically, such as Figure 1 and Figure 5 As shown, the holding portion 1 includes a holding rod 11, a connecting rod 12 and an angle adjustment assembly. One end of the connecting rod 12 is fixed to the holding rod 11, and the other end of the connecting rod 12 is connected to the cylindrical shell 2 through the angle adjustment assembly. The angle adjustment assembly is used to adjust the angle of the cylindrical shell 2, thereby facilitating the adjustment of the position of the opening 21.

[0036] Specifically, such as Figure 5 and Figure 6 As shown, the angle adjustment assembly includes a U-shaped connector 81 and two rotating platforms 82. The back side of the opening of the U-shaped connector 81 is fixed to the end face of the connecting rod 12. The cylindrical shell 2 is located on the inner side of the opening of the U-shaped connector 81. The fixed ends of the two rotating platforms 82 are fixed to the inner wall of the opening of the U-shaped connector 81. The rotating ends of the two rotating platforms 82 are respectively fixed to the upper and lower outer shell walls at the center of the cylindrical shell 2.

[0037] In this embodiment, the angle adjustment assembly can drive the cylindrical shell 2 to rotate to the right angle by controlling the two rotating platforms 82 to rotate synchronously when the clamping part enters the oral esophagus. Figure 6 State, so that it is parallel to the opening of the U-shaped connector 81, easy to insert, when moved to the vicinity of the fishbone, the cylindrical shell 2 is controlled to rotate to fit the position of the fishbone.

[0038] The above disclosures are only several preferred specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. An oral foreign body removal device, characterized in that: It includes a gripping portion and a clamping portion connected to the gripping portion, wherein the clamping portion includes: A cylindrical shell, the outer wall of which is connected to the grip portion, and an opening is provided on a side of the cylindrical shell facing away from the grip portion, the opening being arranged along the axial direction of the cylindrical shell for guiding the fishbone to enter; a cutting member disposed in the cylindrical housing, the cutting member comprising a pair of cutter heads and a shearing drive member, the pair of cutter heads being located on the upper and lower sides of the opening, respectively, and being staggered, the two cutter heads forming an angle with the axis of the cylindrical housing, the output end of the shearing drive member being connected to the two cutter heads, and being used to drive the pair of cutter heads to cut off fish bones entering through the opening, with the cut section being an inclined surface; The clamping and moving mechanism is arranged inside the cylindrical shell, and is used to clamp and move the two cut fish bones so that the two ends of the fish bones are retracted into the cylindrical shell.

2. The oral foreign body removal device according to claim 1, characterized in that: The opening includes a first opening portion and a second opening portion, the cross section of the first opening portion is V-shaped, the cross section of the second opening portion is circular, the second opening portion coincides with the center line of the cylindrical shell, and the tip of the first opening portion is connected to the second opening portion.

3. The oral foreign body removal device according to claim 1, characterized in that: The clamping and moving mechanism comprises: The clamping member includes a pair of clamping assemblies and an opening and closing assembly. The pair of clamping assemblies are symmetrically arranged on both sides of the cutting member. The clamping assemblies include a plurality of clamping claws arranged around the axis of the cylindrical shell, wherein the gap formed between the two clamping claws is arranged opposite to the opening; the output end of the opening and closing assembly is connected to the plurality of clamping claws for controlling the opening and closing of the plurality of clamping claws, thereby clamping both sides of the fishbone using the pair of clamping assemblies; The spacing adjustment component is connected to the pair of clamping head assemblies and is used to adjust the horizontal spacing of the pair of clamping head assemblies, so that the two fish bones cut by the cutting component are moved closer to each other and removed from the mucosa.

4. The oral foreign body removal device according to claim 3, characterized in that: The opening and closing assembly comprises: The rotary drive unit is arranged in a mounting groove, wherein the mounting groove is provided on the inner top surface of the cylindrical shell and is arranged along the axial direction of the cylindrical shell; A bidirectional screw rod, one end of which is connected to the output end of the rotary drive unit and the other end of which is rotatably connected to the groove wall of the mounting groove, and nut seats are connected to both sides of the bidirectional screw rod; Two C-shaped sliders are respectively sleeved on the outside of multiple clamping claws in the two groups of the chuck assemblies. The top of each C-shaped slider is fixed to the nut seat. The end of each clamping claw away from the cutting member is connected to a horizontally arranged elastic support rod. The other end of the elastic support rod is fixed with a C-shaped fixing block, and the C-shaped fixing block is connected to the inner end face of the cylindrical shell.

5. The oral foreign body removal device according to claim 4, characterized in that: The spacing adjustment member comprises: Two sets of magnetic attraction components are respectively arranged on the inner end surfaces of both sides of the cylindrical shell, and the magnetic attraction components include a C-shaped electromagnet fixed on the inner end surface of the cylindrical shell, the C-shaped electromagnet is electrically connected to the external controller, the material of the C-shaped fixing block is ferromagnetic material, and the notch of the C-shaped electromagnet is arranged opposite to the opening; Two groups of elastic abutment components are respectively arranged on both sides of the cutting member and are located between the clamping claws and the C-shaped fixing block. The elastic abutment components include a C-shaped mounting seat and multiple springs. The C-shaped mounting seat is fixed on the inner wall of the cylindrical shell. The elastic support rod is slidably passed through the C-shaped mounting seat. The notch of the C-shaped mounting seat is arranged opposite to the opening. Multiple springs surround the outer side of the elastic support rod, and the two ends of the multiple springs are respectively connected to the C-shaped mounting seat and the C-shaped fixing block.

6. The oral foreign body removal device according to claim 4, characterized in that: A limit block is fixed in the installation groove, and the limit block is located between a pair of chuck assemblies. A through hole for a bidirectional screw rod to pass through is opened on the installation groove.

7. The oral foreign body removal device according to claim 6, characterized in that: The shear drive component includes two electric telescopic rods, wherein the cylinder body of one electric telescopic rod is fixed to the bottom of the limit block, and the end of the telescopic rod is fixed to the cutter head located on the upper side of the opening; the cylinder body of the other electric telescopic rod is fixed to the inner bottom surface of the cylindrical shell, and the end of the telescopic rod is fixed to the cutter head located on the lower side of the opening.

8. The oral foreign body removal device according to any one of claims 1 to 7, characterized in that: The holding portion includes a holding rod, a connecting rod and an angle adjustment assembly, one end of the connecting rod is fixed to the holding rod, and the other end of the connecting rod is connected to the cylindrical shell through the angle adjustment assembly, and the angle adjustment assembly is used to adjust the angle of the cylindrical shell.

9. The oral foreign body removal device according to claim 8, characterized in that: The angle adjustment assembly includes a U-shaped connector and two rotating tables. The back side of the opening of the U-shaped connector is fixed to the end face of the connecting rod. The cylindrical shell is located on the inner side of the opening of the U-shaped connector. The fixed ends of the two rotating tables are fixed to the inner wall of the opening of the U-shaped connector. The rotating ends of the two rotating tables are respectively fixed to the upper and lower outer shell walls at the center of the cylindrical shell.

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