A multi-mode anesthesia device for thoracic surgery tubeless operation

Abstract

This invention relates to the field of anesthesia technology, and in particular to a multimodal anesthesia device for tubeless thoracic surgery, comprising a laryngeal mask airway, a ventilation tube, and a ventilator. The ventilation tube includes a flexible outer tube, a rigid inner tube, and a flexible reservoir membrane. The flexible outer tube and the flexible reservoir membrane are made of flexible latex material, while the rigid inner tube is preferably made of rigid plastic. This invention features a flexible outer tube, a rigid inner tube, and a flexible reservoir membrane. Because the upper diameter of the rigid inner tube is smaller than the lower diameter, and the upper end of the flexible reservoir membrane is connected to the lower inner side of the rigid inner tube, water droplets flowing down the inner wall of the rigid inner tube will fall onto the inner surface of the flexible reservoir membrane. Furthermore, because the lower end of the flexible reservoir membrane is bent inward to form an annular reservoir cavity, water droplets flowing onto the inner surface of the flexible reservoir membrane gradually converge and are stored in the annular reservoir cavity. This prevents water droplets in the air from flowing back into the patient's larynx, avoiding harm to the patient.

Description

Technical Field

[0001] This invention relates to the field of anesthesia technology, and in particular to a multimodal anesthesia device for tubeless thoracic surgery. Background Technology

[0002] Tubeless thoracic surgery, also known as "tubeless surgery," refers to a thoracoscopic procedure performed under general anesthesia that preserves spontaneous breathing without endotracheal intubation. The procedure uses a non-invasive airway device (such as a laryngeal mask airway) to maintain the patient's spontaneous breathing while supplementing with regional anesthesia and intravenous sedation and analgesia, thus maintaining the patient's respiratory and anesthetic state during the operation and making the surgical process closer to a normal physiological state. Compared to traditional thoracoscopic surgery, tubeless surgery generally has fewer pulmonary complications and avoids the tracheal damage and pressure lung injury associated with endotracheal intubation and mechanical ventilation.

[0003] However, during spontaneous breathing, the exhaled air flows inside the laryngeal mask airway. At this time, the exhaled air (saturated air at about 37°C) exchanges heat with the wall of the airway (the temperature in the operating room is generally between 20°C and 23°C), causing the air temperature to drop rapidly. When the air temperature drops below the "dew point temperature", the water vapor in the exhaled air condenses into water droplets on the inner wall of the airway. These water droplets gradually gather and flow back into the patient's larynx under their own gravity, which can easily cause harm to the patient. Summary of the Invention

[0004] Therefore, it is necessary to provide a multimodal anesthesia device for tubeless thoracic surgery to address the problems existing with current laryngeal masks, in order to solve the problem that water droplets adhering to the ventilation tube wall will flow back into the patient's larynx.

[0005] The above objectives are achieved through the following technical solutions:

[0006] A multimodal anesthesia device for tubeless thoracic surgery includes:

[0007] Laryngeal mask;

[0008] The venting tube includes a flexible outer tube, a rigid inner tube, and a flexible liquid reservoir membrane;

[0009] The upper end of the rigid inner tube has a smaller diameter than the lower end. There are multiple rigid inner tubes, which are spaced apart inside the flexible outer tube, and the lowest rigid inner tube is connected to the laryngeal mask.

[0010] The flexible liquid storage membrane is annular, with its lower end bent inward to form an annular liquid storage cavity. There are multiple flexible liquid storage membranes connected between two adjacent rigid inner tubes. In the two adjacent rigid inner tubes, the upper end of the flexible liquid storage membrane is connected to the lower inner part of the rigid inner tube, and the lower end is connected to the upper outer part of the rigid inner tube.

[0011] The ventilator is connected to the rigid inner tube at the top.

[0012] Preferably, the upper outer part of the rigid inner tube is an inclined surface sloping downwards.

[0013] Preferably, the flexible outer tube is spaced apart from the rigid inner tube and the flexible liquid storage membrane to form an air cavity, the air cavity is isolated from the annular liquid storage cavity, and a gas flow pipe is provided on the flexible outer tube, which can be connected to the inside of the air cavity.

[0014] Preferably, the inner peripheral wall of the flexible outer tube is provided with multiple sets of pressure rods, which correspond to the upper positions of multiple annular liquid storage cavities. Each set of pressure rods has at least three rods, and they are arranged at equal intervals around the inner peripheral wall of the flexible outer tube.

[0015] When the air pressure inside the air chamber drops to the first preset value, the flexible outer tube converges inward so that the pressure rod abuts against the upper part of the flexible liquid storage membrane, thereby closing the upper opening of the annular liquid storage chamber.

[0016] Preferably, when the air pressure inside the air chamber rises to a second preset value, the flexible liquid storage membrane folds inward so that the inner side of the flexible liquid storage membrane protrudes.

[0017] The second preset value is greater than the first preset value.

[0018] Preferably, a plurality of support rods are provided at equal intervals along the circumferential direction on the outer peripheral wall of the rigid inner tube, and the end of the support rod away from the rigid inner tube is disposed on the inner peripheral wall of the flexible outer tube.

[0019] Preferably, a two-way valve is provided on the outside of the gas flow pipe.

[0020] Preferably, the laryngeal mask includes a mask body, a flexible ring, and a sponge. The flexible ring is disposed at the opening of the mask body, and the interior of the flexible ring is connected to the interior of the air cavity. The sponge is filled inside the flexible ring.

[0021] Preferably, the outer side of the cover is provided with a vomit discharge port, which can be connected to the outside of the patient.

[0022] Preferably, the hood has a material guiding cavity that communicates with the vomit discharge port, and a sewage pipe is sleeved on the outside of the flexible outer tube. The upper end of the sewage pipe has a material discharge port, and a sewage discharge cavity is formed between the sewage pipe and the flexible outer tube. The sewage discharge cavity is connected to the material guiding cavity.

[0023] The beneficial effects of this invention are:

[0024] This invention comprises a flexible outer tube, a rigid inner tube, and a flexible reservoir membrane. Since the upper diameter of the rigid inner tube is smaller than the lower diameter, and the upper end of the flexible reservoir membrane is connected to the lower inner side of the rigid inner tube, water droplets flowing down the inner wall of the rigid inner tube will fall onto the inner surface of the flexible reservoir membrane. Furthermore, because the lower end of the flexible reservoir membrane is bent inward to form an annular reservoir cavity, water droplets flowing onto the inner surface of the flexible reservoir membrane gradually converge and are stored in the annular reservoir cavity. This prevents airborne water droplets from flowing back into the patient's throat, thus avoiding harm to the patient. Attached Figure Description

[0025] Figure 1 This is an overall schematic diagram of a multimodal anesthesia device for tubeless thoracic surgery according to the present invention;

[0026] Figure 2 This is a schematic diagram of the ventilation tube in a multimodal anesthesia device for tubeless thoracic surgery according to the present invention.

[0027] Figure 3 for Figure 2 A half-section axonometric view;

[0028] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point I in the middle;

[0029] Figure 5 for Figure 3 A magnified schematic diagram of the structure at point II;

[0030] Figure 6 for Figure 2 A sectional view;

[0031] Figure 7 for Figure 6 A magnified schematic diagram of the structure at point III;

[0032] Figure 8 This is a schematic diagram of the condensation state of the flexible liquid storage membrane when the air pressure inside the air chamber drops to the first preset value.

[0033] Figure 9 This is a schematic diagram showing the bulging state of the flexible liquid storage membrane when the air pressure inside the air chamber rises to the second preset value.

[0034] in:

[0035] 100. Laryngeal mask; 110. Mask body; 111. Vomitus discharge port; 120. Flexible coil; 130. Sponge;

[0036] 200. Vent tube; 210. Flexible outer tube; 220. Rigid inner tube; 221. Inclined surface; 230. Flexible liquid storage membrane; 231. Annular liquid storage chamber; 240. Gas chamber; 250. Gas flow tube; 260. Pressure rod; 270. Support rod; 280. Two-way valve;

[0037] 300. Ventilator; 310. Intake duct; 320. Exhaust duct;

[0038] 400. Sewage pipe; 410. Material discharge port. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0040] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] like Figures 1 to 9As shown, a multimodal anesthesia device for tubeless thoracic surgery includes a laryngeal mask airway 100, a ventilation tube 200, and a ventilator 300. The ventilation tube 200 includes a flexible outer tube 210, a rigid inner tube 220, and a flexible reservoir membrane 230. The flexible outer tube 210 and the flexible reservoir membrane 230 are made of medical-grade flexible latex material. The rigid inner tube 220 is preferably made of rigid plastic material. The diameter of the upper end of the rigid inner tube 220 is smaller than the diameter of the lower end. There are multiple rigid inner tubes 220, which are spaced apart inside the flexible outer tube 210. The lowermost rigid inner tube 220 is connected to the laryngeal mask airway 100. Specifically, the interior of the laryngeal mask airway 100 and the rigid inner tube... The interior of the 220 is interconnected so that gas can be exchanged between the laryngeal mask 100 and the rigid inner tube 220. The flexible reservoir membrane 230 is annular, and its lower end is bent inward to form an annular reservoir cavity 231. There are multiple flexible reservoir membranes 230, which are connected between two adjacent rigid inner tubes 220. In the two adjacent rigid inner tubes 220, the upper end of the flexible reservoir membrane 230 is connected to the lower inner part of the rigid inner tube 220, and the lower end is connected to the upper outer part of the rigid inner tube 220. The ventilator 300 is connected to the uppermost rigid inner tube 220 so that gas exchange can occur between the ventilator 300 and the rigid inner tube 220.

[0043] Before the surgery begins, the anesthesiologist administers intravenous anesthesia to the lesion and surrounding area. Once the anesthesia takes effect, the anesthesiologist uses their left hand to pull the patient's jaw to widen the oral cavity, and their right hand holds the laryngeal mask airway 100, with the opening facing the jaw. It is inserted downwards along the midline of the tongue, against the posterior pharyngeal wall, until it cannot be pushed further. At this point, the opening of the laryngeal mask airway 100 faces the larynx. The patient's exhaled air enters the larynx and then passes through the opening of the laryngeal mask airway 100 into the rigid inner tube 220. Heat exchange occurs between the exhaled air and the wall of the rigid inner tube 220, gradually lowering the temperature. When the temperature drops below the dew point, water vapor in the exhaled air condenses into water droplets on the inner wall of the rigid inner tube 220. As the number of condensed water droplets increases, they gradually converge and, under their own gravity, flow down the rigid inner tube... The water flows downwards along the inner wall of tube 220. Since the diameter of the upper end of the rigid inner tube 220 is smaller than that of the lower end, and the upper end of the flexible reservoir membrane 230 is connected to the lower inner side of the rigid inner tube 220, the water droplets flow down from the inner wall of the rigid inner tube 220 and fall onto the inner surface of the flexible reservoir membrane 230, instead of falling onto the rigid inner tube 220 below it. Furthermore, since the lower end of the flexible reservoir membrane 230 is bent inwards to form an annular reservoir cavity 231, the water droplets flowing onto the inner surface of the flexible reservoir membrane 230 gradually gather and are stored in the annular reservoir cavity 231. This prevents water droplets in the air from flowing back into the patient's larynx, avoiding harm to the patient. The doctor can then perform surgery on the lesion site. After the surgery, the doctor removes the laryngeal mask 100 from the patient's mouth and drains the water collected in the annular reservoir cavity 231.

[0044] It should also be noted that, since the flexible reservoir membrane 230 is connected between two adjacent rigid inner tubes 220 (i.e., the rigid inner tube 220 and the flexible reservoir membrane 230 are alternately arranged in the flexible outer tube 210), it can bend smoothly to adapt to the laryngeal curves of different patients, and can also ensure smooth ventilation and reduce the resistance to spontaneous breathing.

[0045] In a further embodiment, such as Figure 4 and Figure 7 As shown, the upper outer part of the rigid inner tube 220 is a slope 221 that slopes downward from top to bottom.

[0046] Since the upper outer part of the rigid inner tube 220 is an inclined surface 221 that slopes downwards, and the lower end of the flexible liquid storage membrane 230 is connected to the upper outer part of the rigid inner tube 220, the lower end of the flexible liquid storage membrane 230 is attached to the upper outer part of the rigid inner tube 220, forming an inclined guide surface, so that water droplets falling on the guide surface can converge into the annular liquid storage cavity 231 along the guide surface.

[0047] In a further embodiment, such as Figure 6 and Figure 7 As shown, the flexible outer tube 210 is spaced apart from the rigid inner tube 220 and the flexible liquid storage membrane 230 to form an air cavity 240. The air cavity 240 is isolated from the annular liquid storage cavity 231. A gas flow pipe 250 is provided on the flexible outer tube 210, and the gas flow pipe 250 can be connected to the inside of the air cavity 240.

[0048] When the laryngeal mask 100 is inserted into the patient's laryngeal cavity, negative pressure can be drawn into the air cavity 240 through the gas flow tube 250 to reduce the volume of the air cavity 240. At this time, the flexible outer tube 210 is forced to converge inward, thereby reducing the diameter of the flexible outer tube 210, which is conducive to smoothly inserting the laryngeal mask 100 into the patient's laryngeal cavity. After the laryngeal mask 100 is inserted into the preset position in the patient's laryngeal cavity, the gas flow tube 250 is opened again, so that the volume of the air cavity 240 returns to its initial state. At this time, the flexible outer tube 210 returns to its deformation, which is conducive to ensuring that the gas can be smoothly exchanged through the rigid inner tube 220 and the flexible liquid reservoir membrane 230.

[0049] In a further embodiment, such as Figure 7 and Figure 8 As shown, the inner circumferential wall of the flexible outer tube 210 is provided with multiple sets of pressure rods 260. The multiple sets of pressure rods 260 correspond to the upper positions of multiple annular liquid storage cavities 231. Each set of pressure rods 260 has at least three, and they are arranged at equal intervals around the inner circumferential wall of the flexible outer tube 210. When the air pressure in the air cavity 240 drops to the first preset value, the flexible outer tube 210 converges inward so that the pressure rods 260 abut against the upper part of the flexible liquid storage membrane 230, thereby closing the upper cavity opening of the annular liquid storage cavity 231.

[0050] After the surgery, the laryngeal mask 100 needs to be removed from the patient's laryngeal cavity. At this time, the doctor first draws negative pressure into the air chamber 240 through the gas flow tube 250 to reduce the air pressure in the air chamber 240 to the first preset value. At this time, the flexible outer tube 210 converges inward under the negative pressure, so the pressure rod 260 gradually approaches the flexible liquid reservoir membrane 230 until the pressure rod 260 abuts against the upper part of the flexible liquid reservoir membrane 230, thereby closing the upper cavity of the annular liquid reservoir 231. At this time, the water stored in the annular liquid reservoir 231 can no longer flow out. Then the doctor removes the laryngeal mask 100 from the patient's laryngeal cavity.

[0051] In a further embodiment, such as Figure 3 As shown, the laryngeal mask 100 includes a mask body 110, a flexible ring 120, and a sponge 130. The flexible ring 120 is located at the opening of the mask body 110. The flexible ring 120 is made of flexible latex material. The interior of the flexible ring 120 is connected to the interior of the air chamber 240. The sponge 130 is filled inside the flexible ring 120.

[0052] Since the flexible ring 120 is connected to the air cavity 240, when negative pressure is drawn into the air cavity 240 through the gas flow tube 250, the sponge 130 inside the flexible ring 120 will shrink in volume due to the negative pressure, thereby reducing the resistance when the laryngeal mask 100 is inserted and reducing frictional damage to the patient's laryngeal cavity. After the laryngeal mask 100 is inserted into the preset position in the patient's laryngeal cavity, the air pressure in the air cavity 240 will return to the standard atmospheric pressure after the gas flow tube 250 is opened. Under the elastic force of the sponge 130, it will return to normal pressure deformation. At this time, the flexible ring 120 will also return to its initial shape along with the sponge 130 to ensure sealing.

[0053] In a further embodiment, such as Figure 2 and Figure 3 As shown, a two-way valve 280 is provided on the outside of the gas flow pipe 250.

[0054] When negative pressure needs to be drawn from the air chamber 240, connect the end of the two-way valve 280 away from the gas flow pipe 250 to the negative pressure drawing device, and then open the two-way valve 280 to draw negative pressure from the air chamber 240. When positive pressure needs to be restored to the air chamber 240, disconnect the end of the two-way valve 280 away from the gas flow pipe 250 from the negative pressure drawing device, and then open the two-way valve 280. At this time, the air chamber 240 is connected to the external atmospheric pressure, thereby restoring the air chamber 240 to the standard atmospheric pressure state.

[0055] In a further embodiment, such as Figures 7-9 As shown, when the air pressure inside the air chamber 240 rises to the second preset value, the flexible liquid storage membrane 230 folds inward so that the inner side of the flexible liquid storage membrane 230 protrudes, and the second preset value is greater than the first preset value.

[0056] When cleaning and disinfection of the rigid inner tube 220 and the flexible reservoir membrane 230 are required, the operator removes the ventilation tube 200 from the ventilator 300, closes the two-way valve 280, and then places the laryngeal mask 100 along with the ventilation tube 200 into the disinfectant solution. The laryngeal mask 100 is then intermittently pressed. As the sponge 130 is compressed, the air pressure in the air chamber 240 increases. When the air pressure in the air chamber 240 rises to a second preset value, the flexible reservoir membrane 230 is forced to fold inward, thus allowing the flexible reservoir membrane 230 to... The inner surface protrudes, facilitating the cleaning of the inner surface of the flexible liquid reservoir membrane 230. In addition, intermittently pressing the laryngeal mask 100 can also cause the inner surface of the flexible liquid reservoir membrane 230 to protrude intermittently, which helps to improve cleaning efficiency. Compared with the existing non-disposable laryngeal mask 100, the present invention does not require disassembly of the laryngeal mask 100 and the airway 200 when cleaning the airway tube 200, making it more convenient to use and avoiding the deterioration or failure of the seal at the connection between the laryngeal mask 100 and the airway tube 200 due to repeated disassembly and installation.

[0057] In a further embodiment, such as Figures 7-9 As shown, multiple support rods 270 are evenly spaced along the circumferential direction on the outer peripheral wall of the rigid inner tube 220, and one end of the support rod 270 away from the rigid inner tube 220 is set on the inner peripheral wall of the flexible outer tube 210.

[0058] Support rods 270 are provided to connect the flexible outer tube 210 and the rigid inner tube 220. The multiple support rods 270 are arranged at equal intervals to ensure that all parts of the air chamber 240 are connected.

[0059] In a further embodiment, such as Figure 2 As shown, the outer side of the cover 110 is provided with a vomit discharge port 111, which faces the patient's stomach cavity. Once food residue in the patient's stomach cavity is ruminated to the vomit discharge port 111, the ruminated matter can enter the vomit discharge port 111. Since the vomit discharge port 111 can be connected to the outside of the patient, the vomit can be discharged in time to prevent the patient from being in danger.

[0060] In order to enable the vomit discharge port 111 to communicate with the patient's external body, in a further embodiment, such as Figure 2 As shown, the cover 110 has a material guiding cavity that communicates with the vomit discharge port 111. The flexible outer tube 210 is fitted with a sewage discharge pipe 400. A sewage discharge cavity is formed between the sewage discharge pipe 400 and the flexible outer tube 210. The sewage discharge cavity is connected to the material guiding cavity. The upper end of the sewage discharge pipe 400 has a material discharge port 410.

[0061] When food residue from the patient's stomach is detected entering the vomit discharge port 111, the doctor can connect the discharge port 410 to a negative pressure device to extract the vomit from the patient's body, preventing the patient from being in danger.

[0062] It should also be noted that the drain pipe 400 is made of flexible silicone. To facilitate the connection between the drain pipe 400 and the flexible outer tube 210, the drain pipe 400 and the flexible outer tube 210 can be integrally formed. Specifically, the drain pipe 400 can be elliptical in shape, so that the short axis side of the drain pipe 400 is integrally formed with the flexible outer tube 210, while there is a certain gap between the long axis side of the drain pipe 400 and the outer wall of the flexible outer tube 210 to form a drain cavity.

[0063] In a further embodiment, such as Figure 1As shown, the ventilator 300 includes an inlet tube 310 and an outlet tube 320. The inlet tube 310 is connected to the air delivery end of the ventilator 300, and the other end of the inlet tube 310 is connected to the rigid inner tube 220 for delivering oxygen into the patient's larynx. The outlet tube 320 is connected to the air extraction end of the ventilator 300, and the other end of the outlet tube 320 is connected to the rigid inner tube 220 for expelling the patient's exhaled air.

[0064] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A multi-modal anesthesia device for a Tubeless surgery of thoracic surgery, characterized in that, include: Laryngeal mask; The venting tube includes a flexible outer tube, a rigid inner tube, and a flexible liquid reservoir membrane; The upper end of the rigid inner tube has a smaller diameter than the lower end. There are multiple rigid inner tubes, which are spaced apart inside the flexible outer tube, and the lowest rigid inner tube is connected to the laryngeal mask. The flexible liquid storage membrane is annular, with its lower end bent inward to form an annular liquid storage cavity. There are multiple flexible liquid storage membranes connected between two adjacent rigid inner tubes. In the two adjacent rigid inner tubes, the upper end of the flexible liquid storage membrane is connected to the lower inner part of the rigid inner tube, and the lower end is connected to the upper outer part of the rigid inner tube. The ventilator is connected to a rigid inner tube at the top. The upper outer part of the rigid inner tube is inclined downwards. A flexible outer tube is spaced apart from the rigid inner tube and the flexible reservoir membrane to form an air chamber. The air chamber is isolated from the annular reservoir. A gas flow tube is provided on the flexible outer tube, which can communicate with the inside of the air chamber. Multiple sets of pressure rods are provided on the inner peripheral wall of the flexible outer tube. The multiple sets of pressure rods correspond to the upper positions of multiple annular reservoirs. Each set of pressure rods has at least three rods and is evenly spaced around the inner peripheral wall of the flexible outer tube. When the air pressure in the air chamber drops to a first preset value, the flexible outer tube converges inward so that the pressure rods abut against the upper part of the flexible reservoir membrane, thereby closing the upper opening of the annular reservoir. When the air pressure inside the air chamber rises to the second preset value, the flexible liquid storage membrane folds inward so that the inner side of the flexible liquid storage membrane protrudes. The second preset value is greater than the first preset value.

2. A multi-mode anesthesia apparatus for Tubeless surgery in thoracic surgery as claimed in claim 1 wherein, Multiple support rods are evenly spaced along the circumferential direction on the outer peripheral wall of the rigid inner tube, and the end of the support rod away from the rigid inner tube is set on the inner peripheral wall of the flexible outer tube.

3. A multi-mode anesthesia apparatus for Tubeless surgery in thoracic surgery as claimed in claim 1 wherein, A two-way valve is installed on the outside of the gas flow pipe.

4. A multi-mode anesthesia apparatus for Tubeless surgery in thoracic surgery as claimed in claim 1, wherein, The laryngeal mask includes a mask body, a flexible ring, and a sponge. The flexible ring is located at the opening of the mask body, and the inside of the flexible ring is connected to the inside of the air chamber. The sponge is filled inside the flexible ring.

5. A multimodal anesthesia device for tubeless thoracic surgery according to claim 4, characterized in that, The outer side of the cover is provided with a vomit discharge port, which can be connected to the outside of the patient.

6. A multimodal anesthesia device for tubeless thoracic surgery according to claim 5, characterized in that, The hood has a material guiding cavity that communicates with the vomit discharge port. A sewage discharge pipe is sleeved on the outside of the flexible outer tube. A material discharge port is opened at the upper end of the sewage discharge pipe. A sewage discharge cavity is formed between the sewage discharge pipe and the flexible outer tube. The sewage discharge cavity is connected to the material guiding cavity.

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