Multi-channel oropharyngeal ventilation device for anesthesia

Abstract

The invention discloses a multi-channel oropharyngeal ventilation device for anesthesia, and relates to the technical field of medical instruments. The device comprises a breathing machine, a gas transmission chamber is arranged on one side of the breathing machine, a gas transmission end is arranged in the gas transmission chamber, a butt joint pipe is fixedly inserted into one side of the gas transmission end, a limiting ring is fixedly connected to the butt joint pipe in a sleeving mode, and a horizontally-arranged control knob is rotationally installed in the gas transmission chamber; and the control knob is fixedly sleeved with a fan-shaped limiting plate. The multi-channel air conveying assembly is arranged, during first air conveying, part of oxygen-enriched air can be conveyed into the fan-shaped supporting air bags through the first vent holes, and the two third vent holes are gradually filled with the oxygen-enriched air through the second vent holes and the third vent holes, so that the fan-shaped supporting air bags and the annular air bags are gradually expanded, and the oropharynx of a patient is slightly expanded; medical staff can conveniently adjust the insertion position of the oxygen catheter, and the situation that soft tissue of the oropharynx of a patient presses the oxygen catheter, and consequently air conveying is difficult or the air conveying amount is insufficient is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a multi-channel oropharyngeal ventilation device for anesthesia. Background Art

[0002] The oropharyngeal airway, also known as the oropharyngeal tube, is a non-tracheal catheter non-invasive ventilation tube that can prevent the tongue from falling back, quickly open the airway, and establish a temporary artificial airway. For anesthetized or comatose patients, due to the relaxation of the sublingual and pharyngeal muscles that support the tongue to maintain the patency of the upper respiratory tract, the tongue and epiglottis can fall backward into the posterior pharyngeal wall, resulting in upper airway obstruction. When the oropharyngeal airway is correctly inserted, its front end can lift the tongue and epiglottis from the posterior pharyngeal wall, thereby achieving the purpose of preventing or treating upper airway obstruction. Compared with other methods of maintaining the patency of the upper respiratory tract (such as lifting the chin, supporting the mandible, and tracheal intubation), inserting the oropharyngeal airway does not affect the stability of the patient's cervical spine.

[0003] When the existing oropharyngeal airway is inserted into the patient's oropharynx, due to the inability of anesthetized or comatose patients to cooperate with the operation of medical staff, the insertion of the oropharyngeal airway is relatively difficult. At the same time, after the oropharyngeal airway is inserted, the number of its channels is small, resulting in the problem that the oxygen delivery volume often cannot meet the actual needs of the patient. Therefore, a multi-channel oropharyngeal ventilation device for anesthesia is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems that when the existing oropharyngeal airway is inserted into the patient's oropharynx, due to the inability of anesthetized or comatose patients to cooperate with the operation of medical staff, the insertion of the oropharyngeal airway is relatively difficult, and at the same time, after the oropharyngeal airway is inserted, the number of its channels is small, resulting in the problem that the oxygen delivery volume often cannot meet the actual needs of the patient. The present invention provides a multi-channel oropharyngeal ventilation device for anesthesia.

[0005] The present invention specifically adopts the following technical solutions to achieve the above purpose:

[0006] A multi-channel oropharyngeal ventilation device for anesthesia includes a ventilator, a gas delivery chamber is provided on one side of the ventilator, a gas delivery end is provided inside the gas delivery chamber, a docking tube is fixedly plugged into one side of the gas delivery end, a limiting ring is fixedly sleeved on the docking tube, a horizontally arranged control knob is rotatably installed inside the gas delivery chamber, a fan-shaped limiting plate is fixedly sleeved on the control knob, a multi-channel gas delivery assembly for internal support and expansion of the patient's oropharynx and multi-channel gas delivery is provided at one end of the docking tube away from the gas delivery end, the multi-channel gas delivery assembly includes an oxygen delivery tube fixedly plugged into one end of the docking tube, a central A central channel and multiple fan-shaped side channels, the multiple fan-shaped side channels are evenly distributed on the circumference of the central channel, a multiple evenly distributed fan-shaped support airbags are fixedly installed on the circumference of the oxygen supply tube, the positions of the multiple fan-shaped support airbags respectively correspond to the positions of the multiple fan-shaped side channels, a multiple evenly distributed first ventilation holes are opened between the fan-shaped side channels and the fan-shaped support airbags, the oxygen supply tube is fixedly sleeved with two annular airbags at one end away from the gas supply end, a second ventilation hole is opened between one of the annular airbags and the multiple fan-shaped support airbags, and a multiple evenly distributed third ventilation holes are opened between the two annular airbags.

[0007] Furthermore, a plurality of evenly distributed cylindrical folding airbags are fixedly installed on the side of the fan-shaped support airbag facing away from the oxygen supply tube, and the cylindrical folding airbags are all connected to the interior of the fan-shaped support airbag. One end of the plurality of cylindrical folding airbags located on the same fan-shaped support airbag is fixedly sleeved with the same arc-shaped massage plate, and an exhaust hole is provided on the end of the cylindrical folding airbag away from the fan-shaped support airbag.

[0008] Furthermore, a sealing plug is placed inside the fan-shaped side channel, and the sealing plug is located inside the end of the oxygen supply tube away from the gas supply end, and a pull rope is fixedly installed on one side of the sealing plug, and a plurality of evenly distributed inner support frames are placed inside the fan-shaped side channel, and the plurality of inner support frames located inside the same fan-shaped side channel are fixedly sleeved on the pull rope, and one end of the pull rope passes through the docking tube and is fixedly installed with a positioning plug, and the positioning plug is located inside the gas supply end, the interior of the gas supply chamber is rotatably connected to a horizontally arranged winding shaft, and a sealing flap adapted to the gas supply chamber is rotatably installed inside the gas supply chamber, and the winding shaft is located inside the sealing flap, and a driving motor is provided inside the ventilator, and the output shaft of the driving motor is drivingly connected to one end of the winding shaft, and a plurality of positioning slots adapted to the positioning plug are opened on the side wall of the winding shaft, and a magnetic core is provided inside the winding shaft, and the sealing plug, the inner support frame and the positioning plug are all supported by magnetic metal internally.

[0009] The beneficial effects of the present invention are as follows:

[0010] 1. By setting up the multi-channel gas delivery component, when the ventilator delivers gas for the first time, part of the oxygen-rich air will be delivered to the multiple fan-shaped support air bags through the first ventilation holes, and gradually fill the two third ventilation holes through the second and third ventilation holes, causing the fan-shaped support air bags and the annular air bag to gradually expand, slightly opening the patient's oropharynx, facilitating the medical staff to adjust the insertion position of the oxygen delivery tube, and preventing the soft tissues in the patient's oropharynx from pressing the oxygen delivery tube, resulting in difficult gas delivery or insufficient gas delivery volume;

[0011] 2. By setting up the cylindrical folding air bag, when delivering gas, the gas will be input into the cylindrical folding air bag, causing the cylindrical folding air bag to drive the arc-shaped massage plate to expand outwards, internally support the patient's oropharynx, and at the same time discharge the residual gas in a single gas delivery. When the gas delivery stops, the fan-shaped support air bag, the annular air bag, and the cylindrical folding air bag will gradually contract, and then with the intermittent gas delivery of the ventilator, the fan-shaped support air bag, the annular air bag, and the cylindrical folding air bag will expand and contract regularly, thereby massaging the patient's oropharynx and reducing the discomfort of the patient after the operation;

[0012] 3. By setting up the sealing plug block, the sealing plug block will block the air outlet end of the fan-shaped side channel, causing each fan-shaped side channel not to participate in gas delivery initially and only being used for internal support and massage. When the oxygen delivery volume is insufficient, pull out the docking tube, then insert each positioning insert block into the positioning slot in sequence, drive the motor to drive each draw rope to wind up, pull out each sealing plug block and the inner support frame from the fan-shaped side channel, and then reconnect the docking tube and the gas delivery end, enabling multiple fan-shaped side channels to also participate in gas delivery, realizing multi-channel gas delivery and solving the problem of insufficient single-time oxygen delivery volume. Description of the Drawings

[0013] Figure 1 is the three-dimensional structure schematic diagram of the present invention;

[0014] Figure 2 is the three-dimensional structure schematic diagram of the ventilator of the present invention;

[0015] Figure 3 is the three-dimensional structure schematic diagram of the interior of the gas delivery chamber of the present invention;

[0016] Figure 4 is the present invention Figure 3 structural schematic diagram at position A in;

[0017] Figure 5 is the three-dimensional structure schematic diagram of the first perspective of the cooperation between the docking tube and the multi-channel gas delivery component of the present invention;

[0018] Figure 6 is the three-dimensional structure schematic diagram of the second perspective of the cooperation between the docking tube and the multi-channel gas delivery component of the present invention;

[0019] Figure 7 is the structural schematic diagram of part B in the present invention Figure 6 in the present invention;

[0020] Figure 8 is the three-dimensional structural schematic diagram of the multi-channel gas transmission component of the present invention;

[0021] Figure 9 is the present invention Figure 8 structural schematic diagram of part C in the present invention;

[0022] Figure 10 is the internal three-dimensional structural schematic diagram of the sector support airbag and the annular airbag of the present invention;

[0023] Figure 11 is the internal three-dimensional structural schematic diagram of the sector side channel of the present invention;

[0024] Reference numerals: 1, ventilator; 101, air transmission chamber; 2, air transmission end; 3, docking pipe; 4, limit ring; 5, oxygen delivery pipe; 501, central channel; 502, sector side channel; 503, first ventilation hole; 6, sector support airbag; 601, second ventilation hole; 7, cylindrical folding airbag; 701, exhaust hole; 8, arc massage plate; 9, annular airbag; 901, third ventilation hole; 10, sealing plug block; 11, pulling rope; 12, inner support frame; 13, positioning plug; 14, winding shaft; 1401, positioning slot; 15, control knob; 16, sector limit plate; 17, sealing flap. Detailed Description of the Invention

[0025] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0027] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0028] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "inner", "outer", "upper", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0029] As Figures 1 to 11 shown, a multi-channel oropharyngeal ventilation device for anesthesia includes a ventilator 1. As Figure 2 shown, an air delivery chamber 101 is provided on one side of the ventilator 1. An air delivery end 2 is arranged inside the air delivery chamber 101. A docking tube 3 is fixedly inserted on one side of the air delivery end 2. As Figure 5 shown, a limit ring 4 is fixedly sleeved on the docking tube 3. As Figure 5 shown, a horizontally arranged control knob 15 is rotatably installed inside the air delivery chamber 101. A sector-shaped limit plate 16 is fixedly sleeved on the control knob 15. One end of the docking tube 3 away from the air delivery end 2 is provided with a multi-channel air delivery component for internally supporting and expanding the patient's oropharynx and multi-channel air delivery. As Figure 5 shown, the multi-channel air delivery component includes an oxygen delivery tube 5 fixedly inserted at one end of the docking tube 3. As Figure 8 shown, a central channel 501 and a plurality of sector-shaped side channels 502 are arranged inside the oxygen delivery tube 5. The plurality of sector-shaped side channels 502 are evenly distributed on the periphery of the central channel 501. In this embodiment, as Figure 4 and Figure 7 shown, partitions are arranged inside both the air delivery end 2 and the docking tube 3, so that the interiors of the air delivery end 2 and the docking tube 3 are divided into multiple air delivery channels adapted to the central channel 501 and the sector-shaped side channels 502. As Figure 8 shown, a plurality of evenly distributed sector-shaped support air bags 6 are fixedly installed on the periphery of the oxygen delivery tube 5. The positions of the plurality of sector-shaped support air bags 6 correspond to the positions of the plurality of sector-shaped side channels 502 respectively. As Figure 10As shown, a plurality of evenly distributed first ventilation holes 503 are provided between the fan-shaped side channel 502 and the fan-shaped support airbag 6, and two annular airbags 9 are fixedly sleeved on one end of the oxygen supply tube 5 away from the gas supply end 2. In this embodiment, the sizes of the two annular airbags 9 increase successively, one of the annular airbags 9 is fixedly sleeved on the other annular airbag 9, a second ventilation hole 601 is provided between one of the annular airbags 9 and the plurality of fan-shaped support airbags 6, and a plurality of evenly distributed third ventilation holes 901 are provided between the two annular airbags 9; specifically, the multi-channel oropharyngeal ventilation device for anesthesia is When in use, first take out a new set of multi-channel gas delivery components and docking tube 3, insert the air inlet end of the oxygen delivery tube 5 into one end of the docking tube 3, make the limiting ring 4 close to the oxygen delivery tube 5, then plug the other end of the docking tube 3 into the gas delivery end 2 inside the gas delivery chamber 101, and rotate the control knob 15 to make the fan-shaped limiting plate 16 stuck on one side of the limiting ring 4 to limit the docking tube 3 to prevent the docking tube 3 from being separated from the gas delivery end 2 during gas delivery. Then, open the patient's mouth and insert the air outlet end of the oxygen delivery tube 5 into the patient's oropharynx. At this time, turn on the ventilator 1 to allow the ventilator 1 to supply air to the oxygen delivery tube 5 through the gas delivery end 2 and the docking tube 3. Internal gas delivery, so that oxygen-enriched air is delivered to the patient's trachea through the central channel 501, and then the delivery is stopped and the exhalation valve is opened, so that the patient's lungs can retract autonomously and exhale gas, gas exchange is carried out, and ventilation is achieved. By setting a multi-channel gas delivery component, after the multi-channel gas delivery component is inserted into the patient's trachea, the ventilator 1 performs the first gas delivery. At this time, part of the oxygen-enriched air will be delivered to the multiple fan-shaped support air bags 6 through the multiple first ventilation holes 503 on the side of the oxygen delivery tube 5. At the same time, the oxygen-enriched air will gradually fill the two third ventilation holes 901 through the second ventilation hole 601 and the third ventilation hole 901, so that The fan-shaped support airbag 6 and the annular airbag 9 gradually expand, thereby slightly stretching the patient's oropharynx, making it easier for medical staff to adjust the insertion position of the oxygen tube 5 and preventing the patient's oropharyngeal soft tissue from compressing the oxygen tube 5, resulting in difficulty in gas supply or insufficient gas supply. The annular airbag 9 will cover the gas outlet end of 5 inside before and after expansion, and then when the oxygen tube 5 is inserted and the insertion position of the oxygen tube 5 is adjusted after the fan-shaped support airbag 6 and the annular airbag 9 are expanded, the annular airbag 9 can prevent the oxygen tube 5 from directly contacting the patient's oropharyngeal soft tissue and trachea, thereby reducing damage to the patient's internal tissues.

[0030] like Figure 8 As shown, a plurality of evenly distributed cylindrical folding airbags 7 are fixedly installed on the side of the fan-shaped support airbag 6 away from the oxygen supply tube 5. The cylindrical folding airbags 7 are all connected to the interior of the fan-shaped support airbag 6. One end of the plurality of cylindrical folding airbags 7 on the same fan-shaped support airbag 6 is fixedly sleeved with the same arc-shaped massage plate 8, as shown in FIG. Figure 9As shown, exhaust holes 701 are provided at one ends of the cylindrical folding airbag 7 away from the fan-shaped support airbag 6. Specifically, by providing the cylindrical folding airbag 7, when the ventilator 1 supplies gas into the oxygen delivery tube 5, the gas will be input into the cylindrical folding airbag 7 through each fan-shaped support airbag 6, causing the cylindrical folding airbag 7 to stretch and drive each arc-shaped massage plate 8 to expand outward, thereby internally supporting the patient's oropharynx. At the same time, the gas escapes outward through the exhaust holes 701 at the top of the cylindrical folding airbag 7, enabling the residual gas inside the fan-shaped support airbag 6 and the oxygen delivery tube 5 to continue to be discharged during a single gas supply. When the ventilator 1 stops supplying gas, the fan-shaped support airbag 6, the annular airbag 9, and the cylindrical folding airbag 7 will gradually contract, and then with the intermittent gas supply of the ventilator 1, the fan-shaped support airbag 6, the annular airbag 9, and the cylindrical folding airbag 7 will expand and contract regularly, thereby massaging the patient's oropharynx and reducing the discomfort of the patient after surgery.

[0031] As Figure 11 shown, sealing plug blocks 10 are placed inside the fan-shaped side channels 502. The sealing plug blocks 10 are located inside one end of the oxygen delivery tube 5 away from the gas supply end 2. Pull ropes 11 are fixedly installed on one sides of the sealing plug blocks 10. A plurality of evenly distributed internal support frames 12 are placed inside the fan-shaped side channels 502. The plurality of internal support frames 12 located inside the same fan-shaped side channel 502 are fixedly sleeved on the pull ropes 11. As Figure 7 shown, one ends of the pull ropes 11 penetrate through the docking tube 3 and fixedly install positioning plug blocks 13. The positioning plug blocks 13 are all located inside the gas supply end 2. As Figure 2 shown, a horizontally arranged winding shaft 14 is rotatably connected inside the gas supply chamber 101. As Figure 1 shown, a sealing flip cover 17 adapted to the gas supply chamber 101 is rotatably installed inside the gas supply chamber 101. The winding shaft 14 is located inside the sealing flip cover 17. A drive motor is provided inside the ventilator 1, and the output shaft of the drive motor is drivingly connected to one end of the winding shaft 14. As Figure 4As shown in the figure, a plurality of positioning slots 1401 adapted to the positioning plugs 13 are provided on the side wall of the take-up reel 14. A magnetic core is arranged inside the take-up reel 14. The sealing plug 10, the inner support frame 12, and the positioning plugs 13 are all internally supported by magnetic metals. Specifically, by providing the sealing plug 10, the sealing plug 10 blocks the air outlet end of the sector side channel 502, so that each sector side channel 502 does not participate in air delivery initially and is only used for internal support and massage. When the oxygen delivery amount is insufficient, the medical staff can first pull out the docking tube 3 from the inside of the air delivery end 2, then open the sealing flap 17, and insert each positioning plug 13 into the positioning slot 1401 on the take-up reel 14 in sequence for magnetic adsorption fixation. At this time, start the drive motor inside the ventilator 1, so that the take-up reel 14 drives each draw rope 11 to wind up, and pull out each sealing plug 10 and the inner support frame 12 from the sector side channel 502. Then reconnect the docking tube 3 and the air delivery end 2, so that multiple sector side channels 502 also participate in air delivery, realizing multi-channel air delivery and solving the problem of insufficient single oxygen delivery amount. The inner support frames 12 can cooperate with each other to internally support the sector side channels 502 and the central channel 501, maintaining the flow area of air delivery. After the sealing plug 10 and the inner support frame 12 are pulled out, the drive motor stops rotating, and the sealing plug 10 and the inner support frame 12 are stored inside the air delivery chamber 101. At this time, flip the sealing flap 17 to cover and seal. The magnetic core inside the take-up reel 14 can adsorb the positioning plugs 13, the sealing plug 10, and the inner support frame 12, preventing the positioning plugs 13 from falling off and facilitating the storage of the sealing plug 10 and the inner support frame 12.

[0032] In summary: Before air delivery: First, take out a new set of multi-channel air delivery components and the docking tube 3. Insert the intake end of the oxygen delivery tube 5 into one end of the docking tube 3, so that the limit ring 4 is closely attached to the oxygen delivery tube 5. Then insert the other end of the docking tube 3 into the air delivery end 2 inside the air delivery chamber 101, and rotate the control knob 15 to make the sector-shaped limit plate 16 stuck on one side of the limit ring 4 to limit the docking tube 3 and prevent the docking tube 3 from detaching from the air delivery end 2 during air delivery. Then open the patient's mouth and insert the outlet end of the oxygen delivery tube 5 into the patient's oropharynx.

[0033] During gas delivery: Turn on the ventilator 1, so that the ventilator 1 delivers gas to the inside of the oxygen delivery tube 5 through the gas delivery end 2 and the docking tube 3, and the oxygen-rich air is delivered to the patient's trachea through the central channel 501. The ventilator 1 conducts the first gas delivery. At this time, part of the oxygen-rich air will be delivered to the multiple fan-shaped support air bags 6 through the multiple first ventilation holes 503 on the circumferential side of the oxygen delivery tube 5. At the same time, the oxygen-rich air gradually fills the two third ventilation holes 901 through the second ventilation holes 601 and the third ventilation holes 901, causing the fan-shaped support air bags 6 and the annular air bag 9 to gradually expand, thereby slightly expanding the patient's oropharynx, facilitating the medical staff to adjust the insertion position of the oxygen delivery tube 5, and preventing the soft tissues of the patient's oropharynx from pressing the oxygen delivery tube 5, resulting in difficult gas delivery or insufficient gas delivery volume. After a single gas delivery, stop the delivery and open the exhalation valve, so that the patient's lungs retract autonomously and exhale gas for gas exchange to achieve ventilation. When the ventilator 1 delivers gas to the inside of the oxygen delivery tube 5, the gas will be input into the cylindrical folding air bag 7 through each fan-shaped support air bag 6, causing the cylindrical folding air bag 7 to stretch and drive each arc-shaped massage plate 8 to expand outwards, thereby internally supporting the patient's oropharynx. At the same time, the gas escapes outwards through the exhaust holes 701 at the top of the cylindrical folding air bag 7, enabling the residual gas in the fan-shaped support air bag 6 and inside the oxygen delivery tube 5 to continue to be discharged during a single gas delivery. When the ventilator 1 stops delivering gas, the fan-shaped support air bag 6, the annular air bag 9, and the cylindrical folding air bag 7 will gradually contract. Then, with the intermittent gas delivery of the ventilator 1, the fan-shaped support air bag 6, the annular air bag 9, and the cylindrical folding air bag 7 expand and contract regularly, thereby massaging the patient's oropharynx and reducing the discomfort of the patient after the operation;

[0034] When the oxygen delivery volume is insufficient: The medical staff can first pull out the docking tube 3 from the inside of the gas delivery end 2, then open the sealing flip cover 17, and insert each positioning insert block 13 into the positioning slots 1401 on the winding shaft 14 in sequence for magnetic attraction fixation. At this time, start the drive motor inside the ventilator 1, so that the winding shaft 14 drives each pull rope 11 to wind, pull out each sealing plug block 10 and the inner support frame 12 from the fan-shaped side channels 502, and then reconnect the docking tube 3 and the gas delivery end 2, so that the multiple fan-shaped side channels 502 also participate in gas delivery to achieve multi-channel gas delivery and solve the problem of insufficient single oxygen delivery volume.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-channel oropharyngeal ventilation device for anesthesia, characterized in that, The invention comprises a ventilator (1), wherein a gas delivery chamber (101) is provided on one side of the ventilator (1), a gas delivery end (2) is provided inside the gas delivery chamber (101), a docking pipe (3) is fixedly connected to one side of the gas delivery end (2), a limiting ring (4) is fixedly sleeved on the docking pipe (3), and a multi-channel gas delivery component is provided at one end of the docking pipe (3) away from the gas delivery end (2); The multi-channel gas delivery component is used for internal support expansion and multi-channel gas delivery of the patient's oropharynx. The multi-channel gas delivery component includes an oxygen delivery tube (5) fixedly plugged into one end of the docking tube (3). A central channel (501) and a plurality of fan-shaped side channels (502) are provided inside the oxygen delivery tube (5). The plurality of fan-shaped side channels (502) are evenly distributed around the central channel (501). A plurality of evenly distributed fan-shaped support airbags (6) are fixedly installed around the oxygen delivery tube (5). The positions of the plurality of fan-shaped support airbags (6) respectively correspond to the positions of the plurality of fan-shaped side channels (502). A plurality of evenly distributed first ventilation holes (503) are provided between the fan-shaped side channels (502) and the fan-shaped support airbags (6).

2. The multi-channel oropharyngeal ventilation device for anesthesia according to claim 1, wherein, A plurality of evenly distributed cylindrical folding airbags (7) are fixedly mounted on one side of the fan-shaped support airbag (6) away from the oxygen supply tube (5), and the cylindrical folding airbags (7) are all connected to the interior of the fan-shaped support airbag (6), and one end of the plurality of cylindrical folding airbags (7) located on the same fan-shaped support airbag (6) is fixedly sleeved with the same arc-shaped massage plate (8).

3. The multi-channel oropharyngeal ventilation device for anesthesia according to claim 2, characterized in that, An exhaust hole (701) is provided at one end of the columnar folding airbag (7) away from the fan-shaped supporting airbag (6).

4. A multi-channel oropharyngeal ventilation device for anesthesia according to claim 1, characterized in that, Two annular airbags (9) are fixedly sleeved on one end of the oxygen supply tube (5) away from the gas supply end (2), a second ventilation hole (601) is provided between one of the annular airbags (9) and the plurality of fan-shaped support airbags (6), and a plurality of evenly distributed third ventilation holes (901) are provided between the two annular airbags (9).

5. The multi-channel oropharyngeal ventilation device for anesthesia according to claim 1, characterized in that, A sealing plug (10) is placed inside each of the fan-shaped side channels (502). The sealing plug (10) is located inside the end of the oxygen supply pipe (5) away from the gas supply end (2). A pull rope (11) is fixedly installed on one side of the sealing plug (10).

6. The multi-channel oropharyngeal ventilation device for anesthesia according to claim 5, characterized in that, A plurality of evenly distributed inner support frames (12) are placed inside the fan-shaped side channel (502), and the plurality of inner support frames (12) located inside the same fan-shaped side channel (502) are all fixedly sleeved on the draw rope (11).

7. The multi-channel oropharyngeal ventilation device for anesthesia according to claim 6, characterized in that, One end of each of the draw ropes (11) penetrates through the docking pipe (3) and is fixedly installed with a positioning plug (13). The positioning plugs (13) are all located inside the gas transmission end (2). A winding shaft (14) horizontally arranged is rotatably connected inside the gas transmission chamber (101). A driving motor is arranged inside the ventilator (1). The output shaft of the driving motor is drivingly connected to one end of the winding shaft (14). A plurality of positioning slots (1401) adapted to the positioning plugs (13) are formed on the side wall of the winding shaft (14).

8. A multi-channel oropharyngeal ventilation device for anesthesia according to claim 7, characterized in that, A magnetic core is arranged inside the winding shaft (14). The sealing plug block (10), the inner support frame (12) and the positioning plug (13) are all internally supported by magnetic metal.

9. The multi-channel oropharyngeal ventilation device for anesthesia according to claim 7, wherein A sealing flap (17) adapted to the gas transmission chamber (101) is rotatably installed inside the gas transmission chamber (101). The winding shaft (14) is located inside the sealing flap (17).

10. The multi-channel oropharyngeal ventilation device for anesthesia according to claim 1, characterized in that, A horizontally arranged control knob (15) is rotatably installed inside the gas transmission chamber (101). A sector-shaped limiting plate (16) is fixedly sleeved on the control knob (15).

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