Intelligent laryngeal mask for anesthesiology department

Abstract

The invention discloses an intelligent laryngeal mask for the anesthesiology department, relates to the technical field of the anesthesiology department, and aims to provide the intelligent laryngeal mask for the anesthesiology department, which can lead vomiting liquid out of the esophagus and prevent the vomiting liquid from flowing back into the airway when a patient vomits. The first annular air bag is arranged on the ventilation pipe and is aligned with the inflation pipe, a flow guide pipe is arranged below the ventilation pipe, one end of the flow guide pipe is aligned with the esophagus, and the other end of the flow guide pipe extends out of the oral cavity. Meanwhile, the flow guide pipe located below the breather pipe is aligned with the esophagus, when the patient vomits, vomiting liquid enters the flow guide pipe through the esophagus under the pressure effect and then is discharged out of the oral cavity through the flow guide pipe, and the problem that the vomiting liquid extrudes the breather pipe open and flows back into the air inlet channel is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of anesthesiology, and in particular to an intelligent anesthesiology laryngeal mask. Background Art

[0002] The Department of Anesthesiology is an important department in the hospital. Its job function is to enable patients to complete surgery painlessly, quietly, without memory, and without adverse reactions. At the same time, it creates good conditions for surgery, tries to meet the special requirements of certain surgeries, and does a good job of monitoring the surgical anesthesia process, including continuous monitoring of circulation, respiration, water and electrolytes, body temperature and other functions.

[0003] A laryngeal mask is an artificial airway, its purpose is to ensure the patency of the trachea so that the patient can breathe safely and independently under general anesthesia. Compared with a laryngeal tube, it is simpler to install and less harmful to the patient. However, the laryngeal mask will completely cover the airway and close the esophagus when in use. Some patients with special physical conditions will vomit after anesthesia. The traditional way is to use a drainage tube to drain the gastric juice in the stomach before the laryngeal mask is placed. This method is difficult to completely drain the gastric juice, and the human body will secrete new gastric juice over time. As a result, after the laryngeal mask is installed, once the patient vomits, the accumulated fluid in the stomach will squeeze the laryngeal mask under pressure and reflux into the airway, endangering the patient's health. In severe cases, it can be life-threatening. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides an intelligent anesthesiology laryngeal mask which can direct vomitus out of the esophagus to prevent it from flowing back into the airway when the patient has vomiting problems.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent laryngeal mask for anesthesiology, comprising a ventilation tube, a first annular airbag and an inflation tube, wherein the first annular airbag is arranged on the ventilation tube and aligned with the inflation tube, the inflation tube is connected with the first annular airbag, an electronic barometer is arranged at the top of the inflation tube, the electronic barometer is used to convert the air pressure in the inflation tube and the first annular airbag into an electronic signal, and a switch valve is built in, a guide tube is arranged under the ventilation tube, one end of the guide tube is aligned with the esophagus, and the other end extends to the outside of the oral cavity;

[0008] A one-way valve is provided in the guide tube near the esophagus, and the one-way valve opens toward the outside of the esophagus of the guide tube;

[0009] An air filling pipe is arranged in the guide pipe near the one-way valve, and an expansion pipe is arranged on the end face of the air filling pipe. The expansion pipe is arranged in the guide pipe and expands from the inside to the outside.

[0010] Preferably, a second annular airbag is provided on the end surface of the flow guide tube, the second annular airbag is connected to the first annular airbag, and the second annular airbag is used to prop up the flow guide tube.

[0011] Preferably, the one-way valve includes a valve body, a circular baffle and a first spring piece. The valve body is arranged in the guide tube, and a boss with an inner diameter smaller than the circular baffle is also provided in the valve body. The circular baffle is fitted with the boss, and the first spring piece is connected to the inner side of the circular baffle and the valve body.

[0012] Preferably, an air filling component is provided at the outer end of the air filling pipe, and the air filling component is used to transport air into the expansion pipe through the air filling pipe.

[0013] Preferably, the gas-filling component comprises a piston cylinder, a one-way air inlet piston plate slidably matched with the inner wall of the piston cylinder, a piston rod connected to the one-way air inlet piston plate, and a one-way air outlet assembly located at the air outlet end of the piston cylinder;

[0014] The one-way air intake piston plate comprises a piston plate body, a connecting hole and a soft pad. The piston plate body is connected to the end surface of the piston rod, the soft pad is arranged on the inner side of the piston plate body, and the connecting hole is opened through the piston plate body.

[0015] Preferably, the one-way air outlet assembly includes a connecting rod, a first spring and a ball. The connecting rod is arranged in the piston cylinder, the ball is arranged outside the piston cylinder, and the size of the ball is larger than the piston cylinder outlet. The first spring is connected between the ball and the connecting rod.

[0016] Preferably, an exhaust component is provided at the outer end of the expansion tube, and the exhaust component is used to release the air in the expansion tube without removing the gas filling component.

[0017] Preferably, the exhaust component includes an exhaust pipe arranged at the end of the expansion pipe, a closing plate arranged in the exhaust pipe, a pressing rod connected to the closing plate, and a second spring connected to the inner wall of the exhaust pipe and the back of the closing plate, and the size of the closing plate is smaller than the inner diameter of the exhaust pipe and larger than the outlet of the exhaust pipe, and the second spring applies a force to the closing plate in the direction of the exhaust pipe outlet.

[0018] Preferably, a buckle plate is provided on the side of the exhaust pipe, and the buckle plate facilitates single-handed control of the exhaust component.

[0019] Preferably, a liquid level detection component is provided in the guide tube, and the liquid level detection component is used to detect the height of the accumulated liquid in the guide tube and issue a warning signal;

[0020] The liquid level detection component includes a detector and a sensor. The detector is arranged at the outlet end of the guide tube. The sensor is laid on the inner wall of the guide tube and is electrically connected to the detector. The sensor is used to detect the height of the accumulated liquid. The detector is used to receive the signal of the sensor and send a warning signal after reaching the set value.

[0021] Preferably, a sputum discharge port is provided between the ventilation tube and the flow guide tube, and the sputum discharge port is opened unidirectionally toward the flow guide tube;

[0022] The sputum discharge port includes a through hole, a pad and a second spring piece. The through hole connects the ventilation pipe with the guide pipe and is located at the lowest point of the ventilation pipe. The pad is attached under the through hole. One end of the second spring piece is attached to the inner wall of the guide pipe, and the other end is arranged in the pad and applies a force to the pad in the direction of the through hole.

[0023] (III) Beneficial effects

[0024] Compared with the prior art, the present invention provides an intelligent anesthesia laryngeal mask, which has the following beneficial effects:

[0025] 1. By setting up a guide tube, after the ventilation tube is placed, the first annular airbag is inflated to support and position the ventilation tube so that the ventilation tube is aligned with the airway. At the same time, the guide tube under the ventilation tube is aligned with the esophagus. When the patient vomits, the vomitus enters the guide tube through the esophagus under pressure and is then discharged from the mouth through the guide tube, thus avoiding the problem of vomitus squeezing the ventilation tube open and flowing back into the airway.

[0026] 2. By setting a one-way valve, the one-way valve in the diversion tube has a dual function. On the one hand, the one-way valve is in a closed state under normal circumstances, and it can only be opened from the inside to the outside. This method can prevent the outside air from entering the esophagus through the diversion tube and prevent pathogens from invading the human body. On the other hand, as the vomitus is discharged, its pressure will gradually decrease, which will cause some vomitus to remain in the diversion tube. The one-way valve can be used to block this part of the vomitus to prevent it from refluxing into the esophagus, thereby avoiding secondary damage to the patient's esophagus by gastric acid in the vomitus.

[0027] 3. By setting up an expansion tube, when the one-way valve blocks the vomitus and allows it to remain in the diversion tube, the solid matter in the vomitus will gradually settle next to the one-way valve over time. Excessive solid matter will affect the normal opening of the one-way valve. When the patient vomits again, it will cause difficulty in opening the one-way valve, resulting in the inability to discharge the subsequent vomitus in time. The air filling tube is used to inflate the expansion tube, and the expansion tube gradually expands from the inside to the outside to fill the diversion tube and push out the accumulated liquid in the diversion tube, thereby achieving the effect of clearing most of the accumulated liquid and solid matter without touching the one-way valve.

[0028] 4. By setting up a second annular airbag, the second annular airbag is connected to the first annular airbag, so that when the first annular airbag is inflated, the second annular airbag will expand at the same time. The expanded second annular airbag can support the opening of the guide tube, so that the guide tube can be completely opened, preventing the guide tube from being deformed and closed, and further ensuring the normal operation of the guide tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0030] Figure 2 A schematic diagram of the present invention viewed from above;

[0031] Figure 3 is a schematic diagram of a cross section of a vent pipe of the present invention;

[0032] Figure 4 is a schematic diagram of a cross section of a flow guide tube of the present invention;

[0033] Figure 5 It is a three-dimensional schematic diagram of the expansion tube of the present invention;

[0034] Figure 6 A schematic diagram of a cross section of an inflatable component of the present invention;

[0035] Figure 7 is a schematic diagram of a cross section of an exhaust component of the present invention;

[0036] Figure 8 For the present invention Figure 4 The enlarged schematic diagram at A in the middle;

[0037] Fig. 9 For the present invention Figure 4 Schematic diagram of the enlarged view at B.

[0038] In the figure: 1, ventilation tube; 2, first annular airbag; 3, inflation tube; 4, electronic barometer; 5, flow guide tube; 6, second annular airbag;

[0039] 7. Gas filling component; 701. Piston cylinder; 702. Piston rod;

[0040] 703, one-way air intake piston plate; 7031, piston plate body; 7032, connecting hole; 7033, cushion;

[0041] 704, one-way air outlet assembly; 7041, connecting rod; 7042, first spring; 7043, round ball;

[0042] 8. Exhaust components; 801. Exhaust pipe; 802. Second spring; 803. Closing plate; 804. Pressing rod; 805. Buckle plate;

[0043] 9. One-way valve; 901. Valve body; 902. Round baffle; 903. First spring piece;

[0044] 10. Gas pipe;

[0045] 11. Liquid level detection component; 1101. Detector; 1102. Sensor;

[0046] 12. sputum discharge port; 1201. through hole; 1202. pad; 1203. second spring piece;

[0047] 13. Expansion tube. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Example 1

[0050] See also Figure 1-8 , an intelligent laryngeal mask for anesthesiology, comprising a ventilating tube 1, a first annular airbag 2 and an inflating tube 3, wherein the first annular airbag 2 is arranged on the ventilating tube 1 and aligned with the inflating tube 3, the inflating tube 3 is communicated with the first annular airbag 2, an electronic barometer 4 is arranged at the top of the inflating tube 3, the electronic barometer 4 is used to convert the air pressure in the inflating tube 3 and the first annular airbag 2 into an electronic signal, and has a built-in switch valve, a guide tube 5 is arranged under the ventilating tube 1, one end of the guide tube 5 is aligned with the esophagus, and the other end extends to the outside of the oral cavity;

[0051] In the present invention, a guide tube 5 is provided. After the ventilation tube 1 is placed at a designated position, air is injected into the first annular airbag 2 through the inflation tube 3, so that the first annular airbag 2 expands, aligns the ventilation tube 1 with the airway and seals it. At this time, the guide tube 5 under the ventilation tube 1 will be aligned with the esophagus. When the patient vomits, the vomitus will be discharged from the oral cavity through the guide tube 5, avoiding the problem of vomitus squeezing the ventilation tube 1 and flowing back into the airway, thereby ensuring the personal safety of the patient.

[0052] It should also be further explained that the electronic pressure gauge 4 provided on the inflation tube 3 can effectively monitor the inflation state of the first annular airbag 2 and convert the air pressure into an electrical signal, so as to achieve the purpose of real-time monitoring of the working state of the first annular airbag 2. When the first annular airbag 2 is deflated, resulting in failure of the seal between the ventilation tube 1 and the airway, medical staff can discover it in time to avoid affecting the patient's normal breathing, thereby achieving the effect of intelligent real-time monitoring and further ensuring the safety of the patient during use.

[0053] A one-way valve 9 is provided in the drainage tube 5 near the esophagus. The one-way valve 9 opens toward the outside of the esophagus of the drainage tube 5 to prevent the accumulated fluid in the drainage tube 5 from flowing back into the esophagus.

[0054] By setting the one-way valve 9, when the patient vomits, the vomitus fluid will squeeze the one-way valve 9 under the action of pressure, enter the diversion tube 5 and be discharged from the oral cavity. When the pressure of the vomitus fluid disappears, the one-way valve 9 automatically resets and closes. On the one hand, it can prevent the residual vomitus fluid in the diversion tube 5 from flowing back into the esophagus, preventing the gastric acid in the vomitus fluid from causing secondary damage to the esophagus. On the other hand, it can prevent the outside air from entering the esophagus through the diversion tube 5, thereby ensuring the hygiene and safety of the patient when using it.

[0055] A gas-filling pipe 10 is provided in the guide pipe 5 near the one-way valve 9, and an expansion pipe 13 is provided on the end face of the gas-filling pipe 10. The expansion pipe 13 is provided in the guide pipe 5 and expands from the inside to the outside to squeeze out the accumulated liquid in the guide pipe 5. The gas-filling pipe 10 is used to supply gas to the expansion pipe 13.

[0056] By setting the gas filling pipe 10 and the expansion pipe 13, when the one-way valve 9 blocks the residual vomitus in the guide tube 5, a large amount of vomitus will remain in the guide tube 5. As time goes by, the solid matter in the vomitus will gradually settle beside the one-way valve 9. Excessive solid matter will affect the normal opening of the one-way valve 9. At this time, before the solid matter is deposited, the gas filling pipe 10 is used to inflate the expansion pipe 13. Under the action of the gas, the expansion pipe 13 will expand from the air inlet end to the end and fill the entire guide tube 5, while squeezing out the vomitus in the guide tube 5, so as to achieve the purpose of cleaning the vomitus accumulation without taking out the guide tube 5, thereby ensuring the subsequent normal operation of the one-way valve 9, and using this method to ensure the effective removal of the accumulated fluid without inducing or interfering with the one-way valve 9;

[0057] It should also be further explained that the expansion tube 13 is made of acid-resistant rubber. When air is taken in, the air pressure at the air inlet end of the expansion tube 13 is larger, and the air pressure at the end is smaller. Therefore, the expansion tube 13 will preferentially start to expand from the air inlet end and gradually fill the guide tube 5. At the same time, the expansion tube 13 uses acid-resistant rubber material to increase its resistance to gastric acid in vomitus, thereby avoiding the problem of being corroded by gastric acid.

[0058] The end surface of the flow guide tube 5 is provided with a second annular airbag 6, which is connected to the first annular airbag 2, and is used to support the flow guide tube 5;

[0059] By providing the second annular airbag 6, when the first annular airbag 2 is inflated, the second annular airbag 6 connected thereto will expand simultaneously. The second annular airbag 6 can be used to support the inlet end of the guide tube 5 so that the guide tube 5 can be fully opened, thereby avoiding the problem of deformation of the guide tube 5 and ensuring that the vomitus can be smoothly discharged.

[0060] The one-way valve 9 includes a valve body 901, a circular baffle 902 and a first elastic piece 903. The valve body 901 is arranged in the flow guide tube 5, and a boss with an inner diameter smaller than that of the circular baffle 902 is also arranged in the valve body 901. The circular baffle 902 fits the boss. The first elastic piece 903 is connected to the inner side of the circular baffle 902 and the valve body 901, and applies an elastic force to the circular baffle 902 in the direction of the boss.

[0061] By setting a circular baffle 902 and a first elastic sheet 903, the specific circular baffle 902 can be fitted with the boss in the valve body 901. When force is applied from the esophagus to the direction of the guide tube 5, the circular baffle 902 will be squeezed open, so that the guide tube 5 is open. When force is applied from the guide tube 5 to the esophagus, the circular baffle 902 will be squeezed and fitted on the boss, so that the guide tube 5 is closed. In addition, the first elastic sheet 903 can be used to quickly reset the circular baffle 902 after being pushed open, and at the same time ensure that the circular baffle 902 is in a sealed state under normal circumstances. The two complement each other to produce a one-way opening effect, and the structure is simple, the opening is wide, and the interference with the fluidity of the vomitus liquid is small.

[0062] Example 2

[0063] refer to Figure 5 , Figure 6 Specifically, the outer end of the gas filling pipe 10 is provided with a gas filling component 7, which is used to transport air into the expansion pipe 13 through the gas filling pipe 10. The gas filling component 7 includes a piston cylinder 701, a one-way air inlet piston plate 703 that slides with the inner wall of the piston cylinder 701, a piston rod 702 connected to the one-way air inlet piston plate 703, and a one-way air outlet component 704 located at the air outlet end of the piston cylinder 701;

[0064] By setting the gas filling component 7, compared with the first embodiment, the gas filling component 7 set in this embodiment can autonomously supply air to the gas filling pipe 10. When it is necessary to inflate the gas filling pipe 10 and the expansion pipe 13, the gas filling component 7 is connected to the gas filling pipe 10. When it is necessary to release the air in the expansion pipe 13 and the gas filling pipe 10, the gas filling component 7 is disassembled from the gas filling pipe 10. In this way, there is no need to connect to external gas filling equipment and no need for electric drive. It can be used in emergency situations, which improves the scope of application of the equipment.

[0065] The one-way air intake piston plate 703 includes a piston plate body 7031, a connecting hole 7032 and a soft pad 7033. The piston plate body 7031 is connected to the end surface of the piston rod 702, the soft pad 7033 is arranged on the inner side of the piston plate body 7031, and the connecting hole 7032 is opened through the piston plate body 7031;

[0066] By setting the connecting hole 7032 and the soft cushion 7033, specifically, when the piston rod 702 drives the piston plate body 7031 to move into the piston cylinder 701, the air pressure in the piston cylinder 701 increases and squeezes the soft cushion 7033, so that the soft cushion 7033 fits on the piston plate body 7031 and closes the connecting hole 7032. At this time, the compressed air in the piston cylinder 701 can only be discharged through the one-way air outlet component 704, so as to achieve the purpose of supplying air to the gas filling pipe 10. When the piston rod 702 drives the piston plate body 7031 to move outside the piston cylinder 701, the air pressure in the piston cylinder 701 will decrease and be lower than the external air pressure. At this time, the external air will squeeze the soft cushion 7033 through the connecting hole 7032 and be replenished into the piston cylinder 701, so as to achieve the purpose of replenishing the air in the piston cylinder 701.

[0067] The one-way air outlet assembly 704 includes a connecting rod 7041, a first spring 7042 and a ball 7043. The connecting rod 7041 is arranged inside the piston cylinder 701, and the ball 7043 is arranged outside the piston cylinder 701. The ball 7043 is larger than the outlet of the piston cylinder 701. The first spring 7042 is connected between the ball 7043 and the connecting rod 7041.

[0068] By setting the first spring 7042 and the ball 7043, the first spring 7042 applies a pulling force to the ball 7043, so that the ball 7043 closes the piston cylinder 701 under normal conditions. When the air pressure in the piston cylinder 701 increases, the compressed air will squeeze the ball 7043 and flow into the gas filling pipe 10. When the air pressure in the piston cylinder 701 decreases, the ball 7043 will close the outlet of the piston cylinder 701 driven by the air pressure and the first spring 7042, thereby avoiding the problem of extracting air from the gas filling pipe 10.

[0069] Example 3

[0070] refer to Figure 5 , Figure 7 Specifically, an exhaust component 8 is provided at the outer end of the expansion tube 13, and the exhaust component 8 is used to release the air in the expansion tube 13 without removing the gas filling component 7;

[0071] By providing the exhaust component 8, the air in the expansion tube 13 can be actively released by utilizing the exhaust component 8. Compared with the second embodiment, there is no need to disassemble the gas filling component 7, which further improves the convenience of operation and reduces the tediousness and labor intensity of medical staff.

[0072] The exhaust component 8 includes an exhaust pipe 801 disposed at the end of the expansion pipe 13, a closing plate 803 disposed in the exhaust pipe 801, a pressing rod 804 connected to the closing plate 803, and a second spring 802 connected to the inner wall of the exhaust pipe 801 and the back of the closing plate 803, and the size of the closing plate 803 is smaller than the inner diameter of the exhaust pipe 801 and larger than the outlet of the exhaust pipe 801, and the second spring 802 applies a force to the closing plate 803 in the direction of the outlet of the exhaust pipe 801;

[0073] By setting up a second spring 802 and a closing plate 803, the closing plate 803 can be attached to the outlet of the exhaust pipe 801 under the push of the second spring 802 and the air pressure, and the outlet is closed, so that the expansion tube 13 is in a sealed state under normal conditions, and the second spring 802 can continuously apply a thrust to the closing plate 803, so that after the closing plate 803 is opened to release air, it can automatically reset to close the exhaust pipe 801.

[0074] A pinch plate 805 is provided on the side of the exhaust pipe 801, and the pinch plate 805 facilitates single-handed control of the exhaust component 8;

[0075] By setting the buckle plate 805, the buckle plate 805 can facilitate holding and controlling the exhaust component 8. When in use, the exhaust pipe 801 is clamped with the index finger and the middle finger, and the two are in contact with the back of the buckle plate 805. When deflating, the thumb is used to press the pressing rod 804 to drive the closing plate 803 to open, which further improves the convenience of operation.

[0076] Example 4

[0077] refer to Figure 4 , Fig. 9 Specifically, a liquid level detection component 11 is provided in the guide tube 5. The liquid level detection component 11 is used to detect the height of the accumulated liquid in the guide tube 5 and send out a warning signal. The liquid level detection component 11 includes a detector 1101 and a sensor 1102. The detector 1101 is provided at the outlet end of the guide tube 5. The sensor 1102 is laid on the inner wall of the guide tube 5 and connected to the detector 1101. The sensor 1102 is used to detect the height of the accumulated liquid. The detector 1101 is used to receive the signal of the sensor 1102 and send out a warning signal after reaching a set value.

[0078] By setting up the detector 1101 and the sensor 1102, the content of the accumulated fluid in the guide tube 5 can be monitored in real time, which solves the problem that because the guide tube 5 is placed in the patient's mouth, it is impossible to determine whether there is residual fluid in the guide tube 5, further improves the intelligent effect of the device, and is more convenient for medical staff to use. In addition, it needs to be further explained that the liquid level-related detector 1101 and sensor 1102 are common knowledge, and their structure and principle are not elaborated here.

[0079] A sputum discharge port 12 is provided between the vent 1 and the guide tube 5. The sputum discharge port 12 is opened unidirectionally toward the guide tube 5. The sputum discharge port 12 includes a through hole 1201, a pad 1202, and a second elastic piece 1203. The through hole 1201 connects the vent 1 and the guide tube 5 and is located at the lowest point of the vent 1. The pad 1202 is attached under the through hole 1201. One end of the second elastic piece 1203 is attached to the inner wall of the guide tube 5, and the other end is arranged in the pad 1202, and a force is applied to the pad 1202 in the direction of the through hole 1201;

[0080] By setting the through hole 1201, the through hole 1201 can connect the ventilation tube 1 with the guide tube 5. When sputum is produced in the patient's airway, the sputum will flow to the through hole 1201 in the ventilation tube 1 under the action of gravity, and press the pad 1202 downward by its own gravity, so that the pad 1202 is opened under the support of the second spring piece 1203, and the sputum flows into the guide tube 5 through the through hole 1201. In this way, the sputum in the ventilation tube 1 can be cleared in time, avoiding the problem of blockage of the ventilation tube 1 caused by excessive accumulation of sputum, and further ensuring the safety of the patient;

[0081] It should be further explained that by setting the second spring piece 1203 and the pad 1202, it is avoided to set a complex mechanism in the through hole 1201, and the through hole 1201 can be opened to the maximum extent, reducing the obstruction to the fluidity of sputum. At the same time, the second spring piece 1203 and the pad 1202 can close the through hole 1201 under normal conditions to prevent the residual vomitus in the guide tube 5 from flowing back into the ventilation tube 1. At the same time, the thickness of the second spring piece 1203 and the pad 1202 is relatively small, which can avoid the impact on the expansion tube 13 to the maximum extent.

[0082] Working principle:

[0083] When in use, the operator pulls the mandible with his left hand and widens the oral cavity, holds the ventilating tube 1 with his right hand, and makes the end with the first annular airbag 2 face the mandible, and inserts it downward along the midline of the tongue against the posterior wall of the pharynx until it cannot be pushed further. At this time, the first annular airbag 2 and the ventilating tube 1 will cover the airway, and the guide tube 5 below the ventilating tube 1 will be aligned with the esophagus. The first annular airbag 2 and the second annular airbag 6 are inflated through the inflation tube 3, so that the ventilating tube 1 and the airway are sealed, and the guide tube 5 and the esophagus are sealed. When the patient vomits, the vomitus enters the guide tube 5 through the esophagus and is discharged from the mouth.

[0084] When the vomitus enters the diversion tube 5, the one-way valve 9 will be squeezed open under the action of pressure. When the pressure disappears, the one-way valve 9 will automatically reset, which can prevent air from entering the esophagus and prevent the residual vomitus in the diversion tube 5 from flowing back into the esophagus.

[0085] When the liquid level detection component 11 detects that there is a lot of accumulated liquid in the guide tube 5, it sends out a signal. Then the medical staff inflates the gas filling tube 10 through the gas filling component 7. The gas filling tube 10 supplies air to the expansion tube 13. The expansion tube 13 expands from the inside to the outside under the action of air pressure, filling the guide tube 5 and squeezing out the accumulated liquid. After the accumulated liquid is cleaned, the exhaust component 8 is used to discharge the air in the expansion tube 13, so that the expansion tube 13 retracts and resets.

[0086] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. An intelligent laryngeal mask for anesthesiology, comprising a ventilating tube (1), a first annular airbag (2) and an inflation tube (3), wherein the first annular airbag (2) is arranged on the ventilating tube (1) and aligned with the inflation tube (3), and the inflation tube (3) is connected to the first annular airbag (2), characterized in that: The top end of the inflation tube (3) is provided with an electronic barometer (4), which is used to convert the air pressure in the inflation tube (3) and the first annular airbag (2) into an electronic signal and has a built-in switch valve. A guide tube (5) is provided under the ventilation tube (1), one end of the guide tube (5) is aligned with the esophagus, and the other end extends outside the oral cavity; A one-way valve (9) is provided in the guide tube (5) near the esophagus, and the one-way valve (9) opens toward the outer side of the esophagus of the guide tube (5); A gas filling pipe (10) is provided in the guide pipe (5) near the one-way valve (9), and an expansion pipe (13) is provided on the end face of the gas filling pipe (10). The expansion pipe (13) is arranged in the guide pipe (5) and expands from the inside to the outside.

2. The intelligent anesthesiology laryngeal mask according to claim 1, characterized in that: The end surface of the flow guide tube (5) is provided with a second annular airbag (6), and the second annular airbag (6) is connected to the first annular airbag (2).

3. The intelligent anesthesiology laryngeal mask according to claim 1, characterized in that: The one-way valve (9) comprises a valve body (901), a circular baffle (902) and a first elastic piece (903); the valve body (901) is arranged in the flow guide tube (5), and a boss with an inner diameter smaller than that of the circular baffle (902) is also arranged in the valve body (901); the circular baffle (902) is fitted with the boss, and the first elastic piece (903) is connected to the inner side of the circular baffle (902) and the valve body (901).

4. The intelligent anesthesiology laryngeal mask according to claim 1, characterized in that: The outer end of the gas filling pipe (10) is provided with a gas filling component (7), and the gas filling component (7) is used to transport air into the expansion pipe (13) through the gas filling pipe (10).

5. The intelligent anesthesiology laryngeal mask according to claim 4, characterized in that: The gas filling component (7) comprises a piston cylinder (701), a one-way gas inlet piston plate (703) slidably matched with the inner wall of the piston cylinder (701), a piston rod (702) connected to the one-way gas inlet piston plate (703), and a one-way gas outlet assembly (704) located at the gas outlet end of the piston cylinder (701); The one-way air intake piston plate (703) comprises a piston plate body (7031), a connecting hole (7032) and a soft pad (7033); the piston plate body (7031) is connected to the end surface of the piston rod (702); the soft pad (7033) is arranged on the inner side of the piston plate body (7031); and the connecting hole (7032) is opened through the piston plate body (7031).

6. The intelligent anesthesia laryngeal mask according to claim 5, characterized in that: The one-way air outlet component (704) comprises a connecting rod (7041), a first spring (7042) and a ball (7043); the connecting rod (7041) is arranged inside the piston cylinder (701); the ball (7043) is arranged outside the piston cylinder (701); and the ball (7043) is larger than the outlet of the piston cylinder (701); and the first spring (7042) is connected between the ball (7043) and the connecting rod (7041).

7. The intelligent anesthesiology laryngeal mask according to claim 4, characterized in that: The outer end of the expansion tube (13) is provided with an exhaust component (8), and the exhaust component (8) is used to release the air in the expansion tube (13) without removing the gas filling component (7).

8. The intelligent anesthesiology laryngeal mask according to claim 7, characterized in that: The exhaust component (8) comprises an exhaust pipe (801) arranged at the end of the expansion pipe (13), a closing plate (803) arranged in the exhaust pipe (801), a pressing rod (804) connected to the closing plate (803), and a second spring (802) connected to the inner wall of the exhaust pipe (801) and the back of the closing plate (803), wherein the size of the closing plate (803) is smaller than the inner diameter of the exhaust pipe (801) and larger than the outlet of the exhaust pipe (801), and the second spring (802) applies a force to the closing plate (803) in the direction of the outlet of the exhaust pipe (801).

9. The intelligent anesthesiology laryngeal mask according to claim 1, characterized in that: A liquid level detection component (11) is provided in the flow guide tube (5), and the liquid level detection component (11) is used to detect the height of the accumulated liquid in the flow guide tube (5) and to issue a warning signal.

10. The intelligent anesthesiology laryngeal mask according to claim 1, characterized in that: A sputum discharge port (12) is provided between the ventilation tube (1) and the flow guide tube (5), and the sputum discharge port (12) is opened unidirectionally in the direction of the flow guide tube (5).

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