Foreign matter taking-out device for ear-nose-throat head and neck surgery

Abstract

The invention discloses a foreign matter taking-out device for ear-nose-throat head and neck surgery, and belongs to the technical field of medical instruments. The foreign matter taking-out device for the ear-nose-throat head and neck surgery comprises a connecting pipe, a shell and a pneumatic control loop, the connecting pipe is connected with the shell, a cavity is formed in the base body, the cavity is communicated with the connecting pipe through an inner cavity of the shell, and the connecting pipe is communicated with the pneumatic control loop; the elastic film can deform along with the change of air pressure in the cavity; the elastic clamping arms are used for applying clamping force to the foreign matter, the outer side of each elastic clamping arm is connected with the base body, the inner side of each elastic clamping arm is connected with the elastic film, and when the interior of the cavity is in a negative pressure state, the elastic clamping arms get close to one another under the action of deformation of the elastic film; the suction nozzle is used for adsorbing foreign matters; and the one-way valve is used for one-way conduction from the suction nozzle to the cavity. According to the foreign matter taking-out device for the ear-nose-throat head and neck surgery, the situation that when a clamping jaw is used for directly clamping a foreign matter, the clamping jaw jacks the foreign matter into the deeper position of the esophagus or the respiratory tract is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to a foreign body removal device for otorhinolaryngology and head and neck surgery. Background Art

[0002] In the clinical treatment of otolaryngology, head and neck surgery, foreign bodies often enter the human body, such as foreign bodies in the nasal cavity, respiratory tract, external auditory canal, esophagus, etc. These foreign bodies not only cause discomfort to patients, such as pain, itching, and breathing difficulties, but may also cause serious complications, such as infection, bleeding, airway obstruction, etc., threatening the patient's life and health. Therefore, timely, safe and effective removal of foreign bodies is an important task facing otolaryngology, head and neck surgeons.

[0003] At present, there are many kinds of foreign body removal devices commonly used in clinical practice, but they all have certain limitations. For example, some traditional tools such as tweezers and pliers have poor flexibility when operating, making it difficult to reach foreign bodies in certain special parts, and easily damaging surrounding tissues. In recent years, some special foreign body removal devices have also appeared. The core components of these foreign body removal devices include connecting tubes and clamps. The clamps are often pneumatic clamps, and the clamps are connected to the air control circuit through the connecting tube. When in use, the clamps are lowered into the patient's esophagus or respiratory tract through the connecting tube, and then the action of the clamps is controlled by operating the air control circuit to clamp the clamps.

[0004] However, the above-mentioned type of clamps also have some disadvantages when in use. As is well known, the esophagus and respiratory tract of the human body have a certain elasticity. When a foreign body is stuck in the esophagus or respiratory tract, the foreign body will fit against the inner wall of the esophagus or respiratory tract, leaving very little operating space for the clamp. When using the clamp to clamp a foreign body, first ensure that the foreign body is between the multiple clamp arms of the clamp, which requires the clamp arms to be inserted between the foreign body and the inner wall of the esophagus and respiratory tract. However, in the process of clinical operation, since the foreign body fits against the inner wall of the esophagus or respiratory tract, when the clamp arms are inserted, the clamp arms may push the foreign body into a deeper position in the esophagus or respiratory tract, making the foreign body more difficult to remove. In addition, directly using the clamp to clamp a foreign body is likely to clamp the inner wall of the esophagus or respiratory tract that fits against the foreign body, thereby posing a risk of the inner wall of the esophagus or respiratory tract being clamped. Summary of the invention

[0005] The purpose of the present invention is to overcome the problems in the prior art and provide a foreign body removal device for otolaryngology and head and neck surgery, which can prevent the foreign body from being pushed into the deeper position of the esophagus or respiratory tract when removing the foreign body from the esophagus or respiratory tract, and prevent the respiratory tract or esophagus from being damaged during the process of clamping the foreign body.

[0006] The present invention provides a foreign body removal device for otorhinolaryngology and head and neck surgery, comprising a connecting pipe, a shell and an air control circuit, wherein the connecting pipe is connected to the shell, the air control circuit is connected to the connecting pipe, and further comprising:

[0007] A base body connected to the shell, wherein a cavity is provided in the base body, and the cavity is connected to the connecting pipe through the inner cavity of the shell;

[0008] An elastic membrane is disposed in the cavity, and the elastic membrane can be deformed as the air pressure in the cavity changes;

[0009] A plurality of elastic clamping arms are arranged on the base, and the plurality of elastic clamping arms are used to apply clamping force to the foreign matter. The outer side of each elastic clamping arm is connected to the base, and the inner side of each elastic clamping arm is connected to the elastic membrane. When the cavity is in a negative pressure state, the plurality of elastic clamping arms are moved closer to each other under the action of deformation of the elastic membrane.

[0010] A suction nozzle is provided on the elastic film, and the suction nozzle is used to absorb foreign matter;

[0011] One end of the one-way valve is connected to the cavity, and the other end of the one-way valve is connected to the suction nozzle. The one-way valve is used for one-way conduction from the suction nozzle to the cavity.

[0012] Preferably, the elastic membrane is provided with a sliding hole, the suction nozzle is connected to a ventilation pipe, the ventilation pipe is slidably connected in the sliding hole, the ventilation pipe is provided with a first piston, the first piston is slidably connected in the cavity, a spring is provided outside the ventilation pipe, one end of the spring abuts against the first piston, and the other end of the spring abuts against the elastic membrane, the ventilation pipe is connected to a one-way valve, one end of the ventilation pipe is connected to the cavity through the one-way valve, and the other end of the ventilation pipe is connected to the suction nozzle, and a pressure block is provided on the suction nozzle, and the pressure block is used to apply pressure to the elastic membrane toward one side of the cavity.

[0013] Preferably, the outer wall of the ventilation pipe is provided with a plurality of protrusions arranged along the axial direction of the ventilation pipe, the sliding hole is tightly fitted with the outer wall of the ventilation pipe, the end face of each protrusion facing the suction nozzle is a vertical surface, and the end face of each protrusion away from the suction nozzle is an inclined surface, when the ventilation pipe slides in the sliding hole toward the side away from the cavity, the elastic membrane vibrates under the action of the plurality of protrusions, and when the ventilation pipe slides in the sliding hole toward the side close to the cavity, the elastic membrane does not vibrate.

[0014] Preferably, an annular airbag is provided on the outer wall of one end of the shell close to the base, the annular airbag is connected to the air control circuit, and the annular airbag is used to expand the esophagus or respiratory tract of the patient.

[0015] Preferably, the air control circuit includes a partition, a turntable and an air extraction and exhaust device, the partition is provided with a first through hole, the first through hole is connected to the cavity, the turntable is rotatably connected to the inner cavity of the shell, the shell side wall is provided with a second through hole, the second through hole is connected to the annular airbag, the turntable is provided with a third through hole and a fourth through hole, the third through hole and the fourth through hole are both connected to the air extraction and exhaust device, and rotating the turntable can connect the third through hole with the first through hole or connect the fourth through hole with the second through hole.

[0016] Preferably, the turntable is connected to a driving tube, the driving tube is rotatably connected to the inner cavity of the shell, the turntable is connected to the driving tube, one end of the driving tube is connected to the air extraction and exhaust device, and the other end of the driving tube is connected to the third through hole and the fourth through hole. The driving tube is connected to a switching mechanism, and the switching mechanism is used to drive the driving tube to rotate, thereby driving the turntable to rotate.

[0017] Preferably, the switching mechanism includes a second piston, a sealed cavity is formed between the inner cavity of the shell and the outer wall of the driving tube, the sealed cavity is connected to the gas extraction and exhaust device, the second piston is connected to the sealed cavity along the axial direction of the driving tube, a transmission mechanism is connected to the second piston, and the transmission mechanism is connected to the driving tube. When air is introduced into the sealed cavity, the gas drives the second piston to slide in the sealed cavity, and the driving tube rotates under the action of the transmission mechanism.

[0018] Preferably, the transmission mechanism includes a limiting slider and a driving slider, the inner wall of the shell is provided with a limiting slider along the axial direction of the driving tube, the limiting slider is slidably connected in the limiting slider, the second piston is connected to the limiting slider, the driving slider is connected to the second piston, the outer wall of the driving tube is provided with a cam groove, the driving slider is slidably connected in the cam groove, and when the second piston slides in the sealing chamber, the second piston drives the driving tube to rotate through the driving slider and the cam groove.

[0019] Preferably, the plurality of elastic clamp arms are all made of silicone material.

[0020] Preferably, the suction nozzle is detachably connected to the ventilation pipe.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the foreign body removal device for otolaryngology and head and neck surgery of the present invention controls the action of the suction nozzle. When the suction nozzle contacts the foreign body, the suction nozzle is used to absorb the foreign body. When the foreign body is absorbed by the suction nozzle, the elastic membrane is driven to deform into the cavity, and the elastic membrane drives the suction nozzle to move into the cavity. The suction nozzle drives the foreign body to move to one side of the cavity until the foreign body is between the multiple elastic clamp arms, and the multiple elastic clamp arms are deformed inward, so that the multiple elastic clamp arms are used to clamp the foreign body, and finally the base and the foreign body are pulled out, thereby completing the foreign body removal operation. In this process, since the multiple elastic clamp arms slightly expand the esophagus or respiratory tract, the difficulty of the suction nozzle to absorb the foreign body can be reduced, and when removing the foreign body in the esophagus or respiratory tract, the foreign body can be prevented from being pushed deeper into the esophagus or respiratory tract, and the respiratory tract or esophagus can be prevented from being damaged during the process of clamping the foreign body.

[0022] By providing a vent and a spring, the multiple elastic clamp arms can be kept away from the foreign objects when the nozzle absorbs the foreign objects, further preventing the multiple elastic clamp arms from pushing the foreign objects deeper into the esophagus or respiratory tract. By providing bumps, the elastic membrane vibrates under the action of the vertical surface of each bump, and the elastic membrane drives the distal end of the elastic clamp arm to vibrate slightly, thereby driving the side wall of the esophagus or respiratory tract to vibrate slightly, so that the inner wall of the esophagus or respiratory tract is more easily separated from the foreign objects, thereby reducing the difficulty of the nozzle to absorb the foreign objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the first working state of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the second working state of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the third working state of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the fourth working state of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the AA surface of the present invention;

[0028] Figure 6 It is a schematic structural diagram of the BB surface of the present invention.

[0029] Description of reference numerals:

[0030] 101. connecting pipe, 102. shell, 103. base, 104. cavity, 105. elastic membrane, 106. elastic clamp arm, 107. suction nozzle, 108. one-way valve, 201. ventilation pipe, 202. first piston, 203. spring, 204. pressure block, 3. bump, 4. annular airbag, 501. partition, 502. turntable, 503. fourth through hole, 504. first through hole, 505. second through hole, 506. third through hole, 601. driving pipe, 602. switching mechanism, 701. second piston, 702. sealing chamber, 703. transmission mechanism, 801. limiting slider, 802. driving slider, 803. limiting slide groove, 804. cam groove. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-Figure 6 , the specific implementation of the present invention is described in detail, but it should be understood that the protection scope of the present invention is not limited by the specific implementation. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] like Figure 1-Figure 6 As shown, the present invention provides a foreign body removal device for otolaryngology and head and neck surgery, comprising a one-way valve 108, a connecting tube 101, a shell 102 and an air control circuit, wherein the connecting tube 101 is connected to the shell 102, and the air control circuit is communicated with the connecting tube 101, and further comprising: a base 103, an elastic membrane 105, a suction nozzle 107 and a plurality of elastic clamp arms 106, wherein the base 103 is connected to the shell 102, and a cavity 104 is provided in the base 103, and the cavity 104 is communicated with the connecting tube 101 through the inner cavity of the shell 102; the elastic membrane 105 is provided in the cavity 104, and the elastic membrane 105 can be deformed as the air pressure in the cavity 104 changes. ; Multiple elastic clamp arms 106 are arranged on the base 103, and the multiple elastic clamp arms 106 are used to apply clamping force to foreign objects. The outer side of each elastic clamp arm 106 is connected to the base 103, and the inner side of each elastic clamp arm 106 is connected to the elastic membrane 105. When the cavity 104 is in a negative pressure state, under the action of the deformation of the elastic membrane 105, the multiple elastic clamp arms 106 approach each other; the suction nozzle 107 is arranged on the elastic membrane 105, and the suction nozzle 107 is used to absorb foreign objects; one end of the one-way valve 108 is connected to the cavity 104, and the other end of the one-way valve 108 is connected to the suction nozzle 107, and the one-way valve 108 is used for unidirectional conduction from the suction nozzle 107 to the cavity 104.

[0033] The working principle of the above embodiment is briefly described:

[0034] The suction nozzle used in the device is disc-shaped with a hole in the middle. When in use, the patient's body position is first fixed, and the shell 102, the base 103 and the multiple elastic clamp arms 106 on the base 103 are inserted into the patient's esophagus or respiratory tract through the connecting tube 101 (as shown in the first working state of the device), until the multiple elastic clamp arms 106 contact with foreign objects in the throat or respiratory tract, and then the air control circuit is controlled to operate, and the air control circuit supplies air to the inner cavity of the shell 102 through the connecting tube 101. Due to the one-way conduction effect of the one-way valve 108, the suction nozzle 107 cannot enter the cavity 107. 04 is exhausted outside, so that the air pressure in the cavity 104 on the base 103 increases. Under the action of the air pressure in the cavity 104, the elastic membrane 105 is deformed outward from the cavity 104. Since the outer side of each elastic clamp arm 106 is connected to the base 103, and the inner side of each elastic clamp arm 106 is connected to the elastic membrane 105, when the elastic membrane 105 is deformed, the multiple elastic clamp arms 106 close to the end of the foreign body expand outward until the esophagus or respiratory tract is slightly expanded (as shown in the third working state of the device). At the same time, the elastic membrane 105 is deformed outward from the cavity 104. The suction nozzle 107 is driven to move toward the foreign object, which can reduce the distance between the foreign object and the suction nozzle 107 until the suction nozzle 107 contacts the foreign object. At this time, the foreign object is between the multiple elastic clamping arms 106, and then the air control circuit is controlled to operate. The air control circuit draws air from the inner cavity of the shell 102 through the connecting pipe 101, thereby forming a negative pressure in the cavity 104 on the base 103. Under the action of the negative pressure in the cavity 104, the one-way valve 108 is turned on, so that the suction nozzle 107 is used to absorb the foreign object. After the foreign object is absorbed by the suction nozzle 107, the air pressure in the cavity 104 continues to decrease. Thus, the elastic film 105 is driven to deform into the cavity 104, the elastic film 105 drives the suction nozzle 107 to move into the cavity 104, and the suction nozzle 107 drives the foreign body to move toward one side of the cavity 104 until the foreign body is between the multiple elastic clamping arms 106. At the same time, in contrast to the process of the multiple elastic clamping arms 106 expanding outward at one end close to the foreign body, the multiple elastic clamping arms 106 are deformed inward, so that the multiple elastic clamping arms 106 are used to clamp the foreign body (as shown in the fourth working state of the device), and finally the base 103 and the foreign body are extracted, thereby completing the foreign body removal operation. In this process, since the multiple elastic clamping arms 106 slightly expand the esophagus or respiratory tract, the difficulty of the suction nozzle 107 to absorb the foreign body can be reduced, and it can be avoided that when the clamping claw directly clamps the foreign body, the clamping claw pushes the foreign body into a deeper position of the esophagus or respiratory tract, and prevents the clamping claw from clamping the respiratory tract or esophagus due to the foreign body being closely attached to the inner wall of the esophagus or respiratory tract.

[0035] The foreign body removal device for otolaryngology and head and neck surgery of the present invention can, when removing foreign bodies in the esophagus or respiratory tract, avoid the situation where the clamps directly clamp the foreign bodies into the esophagus or respiratory tract, and prevent the clamps from clamping the respiratory tract or esophagus due to the foreign bodies being in close contact with the inner wall of the esophagus or respiratory tract.

[0036] On the basis of the above embodiment, in order to make the multiple elastic clamp arms 106 farther away from the foreign matter when the suction nozzle 107 absorbs the foreign matter, the multiple elastic clamp arms 106 are further prevented from pushing the foreign matter into the esophagus or deeper part of the respiratory tract.

[0037] like Figure 1-Figure 4 As shown, the elastic membrane 105 is provided with a sliding hole, the suction nozzle 107 is connected to a vent pipe 201, the vent pipe 201 is slidably connected in the sliding hole, the vent pipe 201 is provided with a first piston 202, the first piston 202 is slidably connected in the cavity 104 along the length direction of the cavity 104, a spring 203 is provided outside the vent pipe 201, one end of the spring 203 abuts against the first piston 202, and the other end of the spring 203 abuts against the elastic membrane 105, the vent pipe 201 is connected with a one-way valve 108, one end of the vent pipe 201 is connected to the cavity 104 through the one-way valve 108, and the other end of the vent pipe 201 is connected to the suction nozzle 107, and the suction nozzle 107 is provided with a pressure block 204, and the pressure block 204 is used to apply pressure to the elastic membrane 105 toward one side of the cavity 104.

[0038] When clamping a foreign object in the esophagus or respiratory tract, the air control circuit supplies air to the cavity 104 on the base 103, and the air pressure in the cavity 104 first drives the first piston 202 to move toward the end close to the foreign object, and the first piston 202 drives the suction nozzle 107 to move toward the end close to the foreign object through the ventilation tube 201. During this process, the spring 203 is squeezed by the first piston 202, so that the elastic force applied by the spring 203 to the elastic membrane 105 drives the elastic membrane 105 to deform slowly, thereby driving the multiple elastic clamping arms 106 to expand slowly, and the ventilation tube 201 slides in the sliding hole in the elastic membrane 105, so that the suction nozzle 107 extends to the side of the foreign object to increase the stroke of the suction nozzle 107, so that when the multiple elastic clamping arms 106 are far away from the foreign object, the suction nozzle 107 can contact the foreign object. When the suction nozzle 107 contacts the foreign object, Air is sucked from the cavity 104 through the air control circuit, and the negative pressure in the cavity 104 drives the first piston 202 to move toward one end of the shell 102, thereby driving the suction nozzle 107 and the foreign matter on the suction nozzle 107 to move toward the side close to the elastic clamping arm 106 through the ventilation pipe 201, until the suction nozzle 107 and the foreign matter enter the multiple elastic clamping arms 106. In this process, due to the elastic force of the spring 203, the multiple elastic clamping arms 106 will not close and clamp until the suction nozzle 107 and the foreign matter are completely entered, and until the pressure block 204 contacts the elastic membrane 105. By providing the ventilation pipe 201 and the spring 203, the multiple elastic clamping arms 106 can be kept away from the foreign matter when the suction nozzle 107 absorbs the foreign matter, further preventing the multiple elastic clamping arms 106 from pushing the foreign matter into the deeper part of the esophagus or respiratory tract.

[0039] As a preferred solution, Figure 1-Figure 4 As shown, the outer wall of the vent pipe 201 is provided with a plurality of protrusions 3 arranged along the axial direction of the vent pipe 201, the sliding hole is tightly matched with the outer wall of the vent pipe 201, the end face of each protrusion 3 facing the suction nozzle 107 is a vertical surface, and the end face of each protrusion 3 away from the suction nozzle 107 is an inclined surface. When the vent pipe 201 slides in the sliding hole toward the side away from the cavity 104, the elastic membrane 105 vibrates under the action of the plurality of protrusions 3, and when the vent pipe 201 slides in the sliding hole toward the side close to the cavity 104, the elastic membrane 105 does not vibrate. By arranging a plurality of protrusions 3 outside the ventilation tube 201, during the process of the plurality of elastic clamping arms 106 clamping the foreign matter, the ventilation tube 201 moves toward the side away from the cavity 104. At this time, since the sliding hole is tightly matched with the outer wall of the ventilation tube 201, and the end face of the protrusion 3 facing the suction nozzle 107 is a vertical surface, and the end face of each protrusion 3 away from the suction nozzle 107 is an inclined surface, therefore, under the action of the vertical surface of each protrusion 3, the elastic membrane 105 vibrates, and the elastic membrane 105 drives the distal end of the elastic clamping arm 106 to vibrate slightly, thereby driving the side wall of the esophagus or respiratory tract to vibrate slightly, so that the inner wall of the esophagus or respiratory tract is easier to separate from the foreign matter, thereby reducing the difficulty of the suction nozzle 107 to absorb the foreign matter.

[0040] As a preferred solution, Figure 1-Figure 6 As shown, an annular airbag 4 is provided on the outer wall of one end of the shell 102 close to the base 103, and the annular airbag 4 is connected to the air control circuit, and the annular airbag 4 is used to expand the esophagus or respiratory tract of the patient. By providing the annular airbag 4, when multiple clamping arms clamp the foreign body in the esophagus or respiratory tract of the patient, the air control circuit is controlled to act to inflate the annular airbag 4, and the annular airbag 4 is inflated (as shown in the second working state, the third working state and the fourth working state of the device), so as to expand the esophagus or respiratory tract more evenly, thereby increasing the distance between the foreign body and the inner wall of the esophagus or respiratory tract of the patient, so that the foreign body is more easily sucked into the multiple clamping arms by the suction nozzle 107, so that the foreign body is more easily removed from the esophagus or respiratory tract of the patient.

[0041] As a preferred solution, Figure 1-Figure 6As shown, the air control circuit includes a partition 501, a turntable 502 and an air extraction and exhaust device, the partition 501 is provided with a first through hole 504, the first through hole 504 is connected to the cavity 104, the turntable 502 is rotatably connected to the inner cavity of the shell 102, the side wall of the shell 102 is provided with a second through hole 505, the second through hole 505 is connected to the annular airbag 4, the turntable 502 is provided with a third through hole 506 and a fourth through hole 503, the third through hole 506 and the fourth through hole 503 are both connected to the air extraction and exhaust device, and rotating the turntable 502 can make the third through hole 506 communicate with the first through hole 504 or make the fourth through hole 503 communicate with the second through hole 505. When the shell 102 and the base 103 are inserted, the annular airbag 4 is in an uninflated state. When the multiple elastic clamp arms 106 come into contact with foreign matter, the air extraction and exhaust device is controlled to start supplying air, and the mounting plate is rotated until the fourth through hole 503 is connected to the second through hole 505. At this time, the air extraction and exhaust device inflates the annular airbag 4 through the fourth through hole 503 and the second through hole 505, so that the annular airbag 4 is inflated and expanded to expand the esophagus or the respiratory tract. When the esophagus or the respiratory tract expands to a certain extent, the turntable 502 is rotated until the third through hole 506 is connected to the first through hole 504, and the air extraction and exhaust device inflates the annular airbag 4 through the third through hole 503 and the second through hole 505. 506 and the first through hole 504 inflate the cavity 104, thereby driving the multiple elastic clamping arms 106 to open and driving the suction nozzle 107 to move toward one end close to the foreign object, until the suction nozzle 107 contacts the foreign object, and then control the air extraction and exhaust device to start the air extraction, thereby forming a negative pressure in the cavity 104, until the multiple elastic clamping arms 106 clamp the foreign object, and then control the turntable 502 to rotate, until the turntable 502 rotates to the fourth through hole 503 and the second through hole 505 to reconnect, thereby exhausting the annular airbag 4, until the annular airbag 4 shrinks, so as to facilitate the extraction of the base 103 and the foreign object. The air control circuit of the device can simultaneously control the action of the annular airbag 4 and the multiple elastic clamping arms 106 through a gas extraction and exhaust device, and can realize the precise control of the action of the annular airbag 4 and the multiple clamping arms, thereby ensuring that the entire device can accurately clamp the foreign object.

[0042] As a preferred solution, Figure 1-Figure 5 As shown, the rotating disk 502 is connected with a driving tube 601, and the driving tube 601 is rotatably connected to the inner cavity of the shell 102. The rotating disk 502 is connected with the driving tube 601, one end of the driving tube 601 is connected with the gas extraction and exhaust device, and the other end of the driving tube 601 is connected with the third through hole 506 and the fourth through hole 503. The driving tube 601 is connected with a switching mechanism 602, and the switching mechanism 602 is used to drive the driving tube 601 to rotate, so as to drive the rotating disk 502 to rotate. By setting the driving tube 601, the driving tube 601 is controlled to rotate by controlling the switching mechanism 602 to rotate, and the driving tube 601 drives the rotating disk 502 connected thereto to rotate, thereby realizing accurate control of the movements of multiple elastic clamp arms 106 and the annular airbag 4.

[0043] As a preferred solution, Figure 1-Figure 4 As shown, the switching mechanism 602 includes a second piston 701, a sealed cavity 702 is formed between the inner cavity of the housing 102 and the outer wall of the driving tube 601, the sealed cavity 702 is communicated with the gas extraction and exhaust device, the second piston 701 is connected to the sealed cavity 702 along the axial direction of the driving tube 601 by sliding, the second piston 701 is connected to the transmission mechanism 703, the transmission mechanism 703 is connected to the driving tube 601, when the sealed cavity 702 is filled with gas, the gas drives the second piston 701 to slide in the sealed cavity 702, and the driving tube 601 rotates under the action of the transmission mechanism 703. The sealed cavity 702 is inflated by the gas extraction and exhaust device, the gas in the sealed cavity 702 drives the second piston 701 to slide in the sealed cavity 702, and the driving tube 601 rotates under the action of the transmission mechanism 703, thereby driving the rotating disk 502 to rotate, so as to accurately control the actions of the multiple clamping arms and the annular airbag 4, and realize the accurate clamping of foreign objects.

[0044] As a preferred solution, Figure 1-Figure 5 As shown, the transmission mechanism 703 includes a limiting slider 801 and a driving slider 802, the inner wall of the shell 102 is provided with a limiting slide groove 803 along the axial direction of the driving tube 601, the limiting slider 801 is slidably connected in the limiting slide groove 803, the second piston 701 is connected to the limiting slider 801, the limiting slide groove 803 and the limiting slider 801 are used to limit the rotation of the second piston 701 relative to the shell 102, the driving slider 802 is connected to the second piston 701, the outer wall of the driving tube 601 is provided with a cam groove 804, the driving slider 802 is slidably connected in the cam groove 804, when the second piston 701 slides in the sealing chamber 702, the second piston 701 drives the driving tube 601 to rotate through the driving slider 802 and the cam groove 804. When the gas drives the second piston 701 to slide in the sealed chamber 702, the second piston 701 will not rotate relative to the housing 102 under the action of the limiting groove 803 and the limiting slider 801. The second piston 701 can drive the driving tube 601 to rotate through the driving slider 802 thereon and the cam groove 804 outside the driving tube 601, thereby achieving precise control of the rotation of the turntable 502.

[0045] As a preferred solution, Figure 1 As shown, the multiple elastic clamp arms 106 are all made of silicone material. The elastic clamp arms 106 are made of silicone material, which has the advantages of soft texture and high elasticity, and can prevent the multiple elastic clamp arms 106 from causing damage to the patient's esophagus or respiratory tract.

[0046] As a preferred solution, Figure 1As shown, the suction nozzle 107 is detachably connected to the vent pipe 201. By arranging the suction nozzle 107 and the vent pipe 201 to be detachably connected, the disassembly and assembly of the suction nozzle 107 can be facilitated, thereby facilitating the maintenance of the suction nozzle 107.

[0047] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A foreign body removal device for otorhinolaryngology and head and neck surgery, comprising a connecting tube (101), a shell (102) and an air control circuit, wherein the connecting tube (101) is connected to the shell (102), and the air control circuit is connected to the connecting tube (101), characterized in that: Also includes: A base (103) is connected to the shell (102); a cavity (104) is provided in the base (103); and the cavity (104) is connected to the connecting pipe (101) through the inner cavity of the shell (102); An elastic membrane (105) is disposed in the cavity (104), and the elastic membrane (105) can be deformed as the air pressure in the cavity (104) changes; A plurality of elastic clamping arms (106) are arranged on the base (103), and the plurality of elastic clamping arms (106) are used to apply a clamping force to a foreign object. The outer side of each elastic clamping arm (106) is connected to the base (103), and the inner side of each elastic clamping arm (106) is connected to the elastic membrane (105). When the cavity (104) is in a negative pressure state, the plurality of elastic clamping arms (106) are moved closer to each other under the action of deformation of the elastic membrane (105); A suction nozzle (107) is provided on the elastic film (105), and the suction nozzle (107) is used to absorb foreign matter; One end of the one-way valve (108) is connected to the cavity (104), and the other end of the one-way valve (108) is connected to the suction nozzle (107). The one-way valve (108) is used for one-way conduction from the suction nozzle (107) to the cavity (104).

2. The foreign body removal device for otolaryngology, head and neck surgery according to claim 1, characterized in that: The elastic membrane (105) is provided with a sliding hole, the suction nozzle (107) is connected with a ventilation pipe (201), the ventilation pipe (201) is slidably connected in the sliding hole, the ventilation pipe (201) is provided with a first piston (202), the first piston (202) is slidably connected in the cavity (104), a spring (203) is provided outside the ventilation pipe (201), one end of the spring (203) is in contact with the first piston (202), and the other end of the spring (203) is in contact with the elastic membrane (105), one end of the ventilation pipe (201) is connected with the cavity (104) through a one-way valve (108), and the other end of the ventilation pipe (201) is connected with the suction nozzle (107), and a pressure block (204) is provided on the suction nozzle (107), and the pressure block (204) is used to apply pressure to the elastic membrane (105) toward one side of the cavity (104).

3. The foreign body removal device for otolaryngology, head and neck surgery according to claim 2, characterized in that: The outer wall of the ventilation pipe (201) is provided with a plurality of protrusions (3) arranged along the axial direction of the ventilation pipe (201); the sliding hole is tightly matched with the outer wall of the ventilation pipe (201); the end surface of each protrusion (3) facing the suction nozzle (107) is a vertical surface; the end surface of each protrusion (3) away from the suction nozzle (107) is an inclined surface; when the ventilation pipe (201) slides in the sliding hole toward the side away from the cavity (104), the elastic membrane (105) vibrates under the action of the plurality of protrusions (3); and when the ventilation pipe (201) slides in the sliding hole toward the side close to the cavity (104), the elastic membrane (105) does not vibrate with sound.

4. The foreign body removal device for otorhinolaryngology, head and neck surgery according to claim 1, characterized in that: An annular airbag (4) is provided on the outer wall of one end of the shell (102) close to the base (103); the annular airbag (4) is connected to the air control circuit; the annular airbag (4) is used to expand the esophagus or respiratory tract of the patient.

5. The foreign body removal device for otorhinolaryngology and head and neck surgery according to claim 4, characterized in that: The air control circuit comprises a partition (501), a rotating disk (502) and an air extraction and discharge device. The partition (501) is provided with a first through hole (504), the first through hole (504) is connected to the cavity (104), the rotating disk (502) is rotatably connected to the inner cavity of the shell (102), the side wall of the shell (102) is provided with a second through hole (505), the second through hole (505) is connected to the annular airbag (4), the rotating disk (502) is provided with a third through hole (506) and a fourth through hole (503), the third through hole (506) and the fourth through hole (503) are both connected to the air extraction and discharge device, and rotating the rotating disk (502) can make the third through hole (506) connected to the first through hole (504) or make the fourth through hole (503) connected to the second through hole (505).

6. The foreign body removal device for otorhinolaryngology, head and neck surgery according to claim 5, characterized in that: The rotating disk (502) is connected to a driving tube (601), and the driving tube (601) is rotatably connected to the inner cavity of the shell (102). The rotating disk (502) is connected to the driving tube (601), and one end of the driving tube (601) is connected to the air extraction and exhaust device, and the other end of the driving tube (601) is connected to the third through hole (506) and the fourth through hole (503). The driving tube (601) is connected to a switching mechanism (602), and the switching mechanism (602) is used to drive the driving tube (601) to rotate, so as to drive the rotating disk (502) to rotate.

7. The foreign body removal device for otorhinolaryngology, head and neck surgery according to claim 6, characterized in that: The switching mechanism (602) comprises a second piston (701), a sealed cavity (702) is formed between the inner cavity of the housing (102) and the outer wall of the driving tube (601), the sealed cavity (702) is communicated with the gas extraction and exhaust device, the second piston (701) is slidably connected to the sealed cavity (702) along the axial direction of the driving tube (601), the second piston (701) is connected to a transmission mechanism (703), and the transmission mechanism (703) is connected to the driving tube (601), when air is introduced into the sealed cavity (702), the gas drives the second piston (701) to slide in the sealed cavity (702), and under the action of the transmission mechanism (703), the driving tube (601) rotates.

8. The foreign body removal device for otorhinolaryngology, head and neck surgery according to claim 7, characterized in that: The transmission mechanism (703) comprises a limiting slide block (801) and a driving slide block (802); the inner wall of the housing (102) is provided with a limiting slide groove (803) along the axial direction of the driving tube (601); the limiting slide block (801) is slidably connected in the limiting slide groove (803); the second piston (701) is connected to the limiting slide block (801); the driving slide block (802) is connected to the second piston (701); the outer wall of the driving tube (601) is provided with a cam groove (804); the driving slide block (802) is slidably connected in the cam groove (804); when the second piston (701) slides in the sealing chamber (702), the second piston (701) drives the driving tube (601) to rotate through the driving slide block (802) and the cam groove (804).

9. The foreign body removal device for otorhinolaryngology, head and neck surgery according to claim 1, characterized in that: The multiple elastic clamp arms (106) are all made of silicone material.

10. The foreign body removal device for otorhinolaryngology, head and neck surgery according to claim 1, characterized in that: The suction nozzle (107) is detachably connected to the ventilation pipe (201).

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