A multi-channel oropharyngeal ventilation device

Abstract

The present invention discloses a multi-channel oropharyngeal ventilation device, including a protective cover and a fixing plate, wherein the fixing plate is arranged on the inner side of the protective cover, a ventilation tube is longitudinally penetrated in the middle of the fixing plate, and a pressure plate is arranged below the ventilation tube; a guide hole for accommodating the ventilation tube is arranged in the middle of the fixing plate, and an inverted "T"-shaped slide groove is connected at the bottom of the guide hole, and the pressure plate longitudinally penetrates the slide groove and slides with the slide groove. The beneficial effect is that the present invention inserts a pressure plate into the oral cavity as a support structure for pressing down the tongue surface before inserting the ventilation tube, and in the process of inserting the ventilation tube into the pharynx under the support of the fixing plate, the gear is driven to rotate by the gradual insertion of the ventilation tube, and the pressure plate is driven to slide outward along the slide groove by the meshing tooth groove of the gear, and the tongue is pulled and dragged outward by the pressure plate pressed against the tongue surface, thereby overcoming the problem of the tongue root being pushed back and falling caused by the ventilation tube passing through the pharynx, and ensuring the unobstructed state of the respiratory tract during the placement of the ventilation tube.

Description

Technical Field

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

[0002] For patients who have undergone general anesthesia after the end of anesthesia surgery, the effects of general anesthetics and muscle relaxants have not completely disappeared, and the protective reflexes have not fully recovered. Complications such as airway obstruction, tongue prolapse, insufficient ventilation, vomiting aspiration, or unstable circulatory function are often prone to occur. Therefore, some patients will have an oropharyngeal airway placed after the endotracheal tube is removed after general anesthesia and enter the anesthesia recovery room to prevent the risk of suffocation due to respiratory obstruction.

[0003] The applicant has discovered that there are at least the following technical problems in the prior art: the existing oropharyngeal airway mainly consists of three parts: a wing edge, a tooth pad and a pharyngeal curve. During use, the pharyngeal curve of the airway needs to be sent along the tongue surface to the upper pharynx to separate the tongue root from the posterior wall of the oropharynx. During this process, the end of the airway is likely to contact the tongue and push the tongue surface to move, causing the tongue to fall back. It is necessary to use a tongue retractor or a tongue depressor as an auxiliary tool to press down on the tongue surface to maintain the tongue position. However, the space in the oral cavity is small, and the tongue retractor or the tongue depressor is inconvenient to operate after the airway is placed. It is still easy to push the tongue root backward during the insertion of the airway, thereby aggravating the airway obstruction. Summary of the invention

[0004] The purpose of the present invention is to provide a multi-channel oropharyngeal ventilation device in order to solve the above-mentioned problems. The gradual insertion of the ventilation tube is used to drive the gear to rotate, and the gear meshing tooth groove is used to drive the pressure plate to slide outward along the slide groove. The pressure plate pressed against the tongue surface is used to pull and drag the tongue outward, thereby overcoming the problem of the tongue root being pushed back caused by the ventilation tube passing through the pharynx, thereby ensuring the patency of the respiratory tract during the placement of the ventilation tube. Details are described below.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The present invention provides a multi-channel oropharyngeal ventilation device, comprising a protective cover and a fixing plate, wherein the fixing plate is arranged inside the protective cover, a ventilation tube is longitudinally penetrated through the middle of the fixing plate, and a pressure plate is arranged below the ventilation tube;

[0007] A guide hole for accommodating the ventilation pipe is provided in the middle of the fixed plate, and an inverted "T"-shaped slide groove is connected to the bottom of the guide hole. The pressure plate longitudinally penetrates the slide groove and slides with the slide groove. A rack extending along the length direction of the ventilation pipe is provided on the bottom side of the ventilation pipe, and transversely extending shaft holes are provided on both sides of the inside of the slide groove. A rotating shaft is transversely penetrated between the two groups of shaft holes, and the rotating shaft is gap-matched with the rotating shaft hole. A plurality of groups of tooth grooves extending along the length direction of the pressure plate are provided on the top side of the pressure plate, and gears are fixed to the middle of the rotating shaft, and the upper and lower sides respectively mesh with the rack and the tooth groove.

[0008] The above-mentioned multi-channel oropharyngeal ventilation device is used. During use, the mounting frame of the protective cover is extended into the patient's mouth, and it is ensured that the patient's upper and lower teeth are engaged on the upper and lower sides of the bite pad. Then, the pressure plate is extended into the patient's mouth along the slide groove, and the patient's tongue surface is covered by the arc-shaped pressure plate. At this time, one end of the side hole of the ventilation tube is passed through the guide hole and extended into the patient's mouth, and the ventilation tube is separated from the tongue by the pressure plate. When the rack of the ventilation tube contacts and meshes with the gear, the rack moves with the ventilation tube to drive the gear to rotate. At this time, the gear meshes with the tooth groove through the bottom side to drive the pressure plate to move out of the patient's mouth through the gear. Then, in the process of the ventilation tube being extended into the patient's throat position, the extension action of the ventilation tube and the transmission action of the gear are used to synchronously drive the pressure plate pressed on the tongue surface to move in the direction of extending out of the mouth, and then the tongue is dragged and pulled outward by the pressure plate, thereby avoiding the problem of tongue posterior fall caused by anesthesia of the patient himself and avoiding the problem of tongue posterior fall caused by pushing the tongue root during the insertion of the ventilation tube.

[0009] Preferably, a guide groove for accommodating the rack is provided on the bottom side of the ventilation pipe, the top side of the gear extends into the guide groove, and the bottom side of the rack is flush with the opening of the guide groove.

[0010] Preferably, the enclosure comprises a rectangular frame-shaped installation frame fixed to the outside of the fixing plate, a peripheral edge is fixed at the front opening of the installation frame, and the peripheral edge is an arc-shaped structure with a gradually expanding front opening.

[0011] Preferably, a bite pad is provided on the outside of the enclosure cover. The bite pad is made of medical rubber and is a rectangular frame structure clamped on the outside of the mounting frame. The front and rear side edges of the bite pad are provided with retaining edges for limiting the tooth occlusal position.

[0012] Preferably, holes are longitudinally penetrated in the middle of both sides of the surrounding edge, and an auxiliary belt is provided on the rear side of the protective cover, and the auxiliary belt comprises a U-shaped belt body with an opening facing forward, and two groups of holes are respectively penetrated at both ends of the belt body, and one end of the belt body is connected to the surrounding edge by a lock buckle, and the other end of the belt body is provided with a tearable Velcro adhered to any position of the outer side of the belt body in the length direction.

[0013] Preferably, the belt body is an elastic belt structure, and a plurality of groups of anti-skid convex strips are evenly distributed on the inner side of the belt body along its length direction, and the anti-skid convex strips are right-angled folded line structures.

[0014] Preferably, the fixing plates on both sides of the ventilation pipe are longitudinally penetrated with accommodating grooves, and two groups of shifting rods are symmetrically arranged in the two groups of accommodating grooves. A vertical shaft vertically penetrating the accommodating grooves is fixed in the middle of the shifting rods, and the vertical shaft is rotatably matched with the fixing plates.

[0015] Preferably, two groups of C-shaped hoop plates with openings facing each other are fixed to the rear ends of the two groups of levers, the inner sides of the hoop plates are pressed against the outer walls of the ventilation pipes, arc-shaped limiting grooves are arranged on the outer sides of the hoop plates, and annular rubber belts are hooped inside the two groups of limiting grooves of the two groups of hoop plates.

[0016] Preferably, the ventilation pipe is provided with a plurality of side holes around the outer wall of one end away from the enclosure, a "human" shaped partition is provided inside the ventilation pipe, and the interior of the ventilation pipe is divided into a plurality of cavities by the partition, and a screw sleeve is provided on the outer side of one end of the ventilation pipe close to the enclosure, and the screw sleeve cooperates with the ventilation pipe thread.

[0017] Preferably, a filter screen covering the opening at the end of the vent pipe is fixed to the end of the screw sleeve, the pressure plate is an arc-shaped structure, and the pressure plate is made of medical stainless steel, and one end of the pressure plate that penetrates into the enclosure is penetrated by a rectangular grabbing groove.

[0018] The beneficial effect is that the present invention inserts a pressure plate into the oral cavity as a support structure for pressing down the tongue surface before inserting the ventilation tube. During the process of inserting the ventilation tube into the pharynx under the support of the fixed plate, the gear is driven to rotate by the gradual insertion of the ventilation tube, and the pressure plate is driven to slide outward along the slide groove by the meshing tooth groove of the gear. The tongue is pulled and dragged outward by the pressure plate pressed against the tongue surface, thereby overcoming the problem of the tongue root being pushed back and falling caused by the ventilation tube being inserted into the pharynx, thereby ensuring the unobstructed state of the respiratory tract during the placement of the ventilation tube.

[0019] Two sets of detachable hoops are arranged on the fixed plate, and the two sets of hoops are tightened by rubber belts to press against the outside of the ventilation tube, so that the ventilation tube can be inserted into the patient's mouth and locked in position after the set length, thereby facilitating the use of patients with different intubation lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a right view structural diagram of the present invention;

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 3 It is a schematic diagram of the structural decomposition of the present invention;

[0024] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0025] Figure 5 It is a schematic diagram of the partial structure splitting of the present invention;

[0026] Figure 6 It is a schematic diagram of the structural disassembly of the fixing plate of the present invention;

[0027] Figure 7 It is a schematic diagram of the structural disassembly of the enclosure cover and the bite pad of the present invention.

[0028] The following are the descriptions of the reference numerals:

[0029] 1. Enclosure; 101. Mounting frame; 102. Surrounding edge; 102a. Through hole; 2. Fixing plate; 201. Guide hole; 202. Slide groove; 202a. Rotating shaft hole; 203. Rotating shaft; 204. Gear; 205. Accommodating groove; 206. Vertical shaft; 207. Push rod; 208. Hoop; 208a. Limiting groove; 209. Rubber belt; 3. Ventilation pipe; 301. Guide groove; 302. Rack; 303. Side hole; 304. Partition plate; 305. Screw sleeve; 306. Filter; 4. Press plate; 401. Tooth groove; 402. Grasping groove; 5. Bite pad; 501. Retaining edge; 6. Auxiliary belt; 601. Belt body; 602. Velcro; 603. Anti-slip convex strip. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0031] See also Figure 1-Figure 7 As shown, the present invention provides a multi-channel oropharyngeal ventilation device, including a protective cover 1 and a fixing plate 2, wherein the fixing plate 2 is arranged inside the protective cover 1, a ventilation tube 3 is longitudinally penetrated through the middle of the fixing plate 2, and a pressing plate 4 is arranged below the ventilation tube 3, and the pressing plate 4 is used to maintain the tongue position to prevent the patient from having a tongue fall problem and affecting breathing;

[0032] A guide hole 201 for accommodating the vent pipe 3 is provided in the middle of the fixed plate 2. The guide hole 201 and the vent pipe 3 are clearance-matched to ensure that the vent pipe 3 can move in the guide hole 201. An inverted "T"-shaped slide groove 202 is connected to the bottom of the guide hole 201. The pressing plate 4 longitudinally penetrates the slide groove 202 and slides with the slide groove 202. A rack 302 extending along the length direction is provided on the bottom side of the vent pipe 3. Both sides of the slide groove 202 are provided with transversely extending shaft holes 202a. A rotating shaft 203 is transversely penetrated between the two groups of shaft holes 202a, and the rotating shaft 203 and the shaft hole 202a are clearance-matched. The top side of the pressing plate 4 is provided with multiple The group has a tooth groove 401 extending along its length direction, and a gear 204 is fixed to the middle of the rotating shaft 203, which meshes with the rack 302 and the tooth groove 401 on the upper and lower sides respectively, to ensure that in the process of moving the ventilation tube 3 to the pharynx, the gear 204 can be driven by the rack 302 to rotate and then drive the pressure plate 4 to move out of the oral cavity. Furthermore, a guide groove 301 for accommodating the rack 302 is provided on the bottom side of the ventilation tube 3, and the top side of the gear 204 extends into the guide groove 301, and the bottom side of the rack 302 is flush with the opening of the guide groove 301, and the rack 302 is retracted into the inner side of the guide groove 301 to avoid friction damage to the pharynx during the process of the ventilation tube 3 extending into the pharynx.

[0033] As an optional embodiment, the enclosure 1 includes a rectangular frame-shaped mounting frame 101 fixed to the outside of the fixing plate 2, a peripheral edge 102 is fixed to the front opening of the mounting frame 101, and the peripheral edge 102 is an arc-shaped structure with a gradually expanding front opening, and a bite pad 5 is arranged on the outside of the enclosure 1. The bite pad 5 is made of medical rubber and is a rectangular frame structure clamped on the outside of the mounting frame 101. The front and rear side edges of the bite pad 5 are both provided with retaining edges 501 for limiting the occlusal position of the teeth, thereby increasing the stability of the patient's teeth occluding on the bite pad;

[0034] A through hole 102a is longitudinally penetrated in the middle of both sides of the surrounding edge 102, and an auxiliary belt 6 is arranged at the rear side of the surrounding cover 1. The auxiliary belt 6 includes a U-shaped belt body 601 with an opening facing forward, and two groups of through holes 102a are respectively penetrated at both ends of the belt body 601, and one end of the belt body 601 is connected to the surrounding edge 102 through a lock buckle, and the other end of the belt body 601 is provided with a Velcro 602 which can be torn and adhered to any position in the length direction of the outer side of the belt body 601. The belt body 601 is an elastic belt structure, and a plurality of groups of anti-slip convex strips 603 are uniformly distributed on the inner side of the belt body 601 along its length direction. The anti-slip convex strips 603 are right-angled folded line bending structures. By passing the belt body 601 around the back of the patient's head, the device can be fixed to the patient's head as a whole through the auxiliary belt 6;

[0035] The fixing plates 2 on both sides of the ventilating pipe 3 are longitudinally penetrated with accommodating grooves 205, and two groups of levers 207 are symmetrically penetrated in the two groups of accommodating grooves 205. A vertical shaft 206 vertically penetrating the accommodating grooves 205 is fixed in the middle of the levers 207. The vertical shaft 206 is rotatably matched with the fixing plate 2. Two groups of C-shaped hoop pieces 208 with openings facing each other are fixed at the rear ends of the two groups of levers 207. The inner side of the hoop piece 208 is pressed against the outer wall of the ventilating pipe 3. The outer side of the hoop piece 208 is provided with an arc-shaped limiting groove 208a. The two groups of limiting grooves 208 of the two groups of hoop pieces 208 The inner hoop has a circular rubber band 209, and the two groups of hoop pieces 208 are tightened by the rubber band 209 to fit tightly to the outside of the ventilating tube 3. The lever 207 and the hoop piece 208 are supported by the vertical shaft 206 to rotate. When the ventilating tube 3 needs to be moved, the two groups of levers 207 are pressed in a direction away from one end of the hoop piece 208 and toward each other, and then the lever 207 is rotated under the support of the vertical shaft 206 to release the tightening state of the hoop piece 208 on the ventilating tube 3, so as to adjust the length of the ventilating tube 3 passing through the guide hole 201 and extending into the patient's mouth;

[0036] A plurality of side holes 303 are arranged around the outer wall of one end of the ventilation tube 3 away from the enclosure 1, so as to increase the unobstructed effect of the ventilation tube 3 extending into the pharynx. A "human" shaped partition 304 is arranged inside the ventilation tube 3, and the interior of the ventilation tube 3 is divided into a plurality of cavities by the partition 304, so that the interior of the ventilation tube 3 is divided into a plurality of cavities, so as to facilitate the insertion of a suction tube, an oxygen supply tube and other pipelines into the ventilation tube 3. A screw sleeve 305 is arranged on the outer side of one end of the ventilation tube 3 close to the enclosure 1, and the screw sleeve 305 is threadedly matched with the ventilation tube 3. A filter screen 306 covering the opening at the end of the ventilation tube 3 is fixed at the end of the screw sleeve 305, so that the ventilation tube 3 is only used as a breathing passage. When the air is sucked into the ventilation tube 3, the screw sleeve 305 is connected to the end of the ventilation tube 3 and then the air sucked into the ventilation tube 3 is filtered through the filter screen 306 to prevent foreign matter from entering the patient's respiratory tract. When it is necessary to insert a suction tube or other pipeline into the ventilation tube 3, the screw sleeve 305 is unscrewed from the end of the ventilation tube 3 to completely expose the end of the ventilation tube 3, so as to facilitate the insertion of other medical pipelines into the ventilation tube 3; the pressing plate 4 is an arc-shaped structure, and the pressing plate 4 is made of medical stainless steel. A rectangular grasping groove 402 is passed through one end of the pressing plate 4 that penetrates into the protective cover 1. The grasping groove 402 is provided to facilitate the position of the pressing plate 4 on the tongue surface to be adjusted before the ventilation tube 3 is inserted.

[0037] With the above structure, during use, the mounting frame 101 of the enclosure 1 is inserted into the patient's mouth, and it is ensured that the patient's upper and lower teeth are engaged with the upper and lower sides of the bite pad 5, and then the pressing plate 4 is inserted into the patient's mouth along the slide groove 202, and the patient's tongue surface is covered by the arc-shaped pressing plate 4. At this time, one end of the side hole 303 of the ventilation tube 3 is passed through the guide hole 201 and inserted into the patient's mouth, and the ventilation tube 3 is separated from the tongue by the pressing plate 4. When the rack 302 of the ventilation tube 3 contacts and meshes with the gear 204, the rack 302 moves with the ventilation tube 3 to drive the gear 204. The wheel 204 rotates, and the gear 204 meshes with the tooth groove 401 through the bottom side, so as to drive the pressing plate 4 to move out of the patient's mouth through the gear 204. Then, when the ventilation tube 3 is inserted into the patient's throat, the insertion action of the ventilation tube 3 and the transmission action of the gear 204 are used to synchronously drive the pressing plate 4 pressed on the tongue surface to move out of the mouth, so as to drag and pull the tongue outward through the pressing plate 4, thereby avoiding the problem of tongue falling back caused by anesthesia of the patient himself and avoiding the problem of tongue falling back caused by pushing the tongue root during the insertion of the ventilation tube 3.

[0038] Before inserting the ventilating tube 3, a pressing plate 4 is inserted into the oral cavity as a supporting structure for pressing down the tongue surface. During the process of inserting the ventilating tube 3 into the pharynx under the support of the fixing plate 2, the gear 204 is driven to rotate by the gradual insertion of the ventilating tube 3. The gear 204 is engaged with the tooth groove 401 to drive the pressing plate 4 to slide outward along the slide groove 202. The pressing plate 4 pressed against the tongue surface is used to pull and drag the tongue outward, thereby overcoming the problem of the tongue root being pushed back due to the ventilating tube 3 being inserted into the pharynx, thereby ensuring the unobstructed state of the respiratory tract during the placement of the ventilating tube 3.

[0039] Two sets of detachable hoops 208 are arranged on the fixing plate 2, and the two sets of hoops 208 are tightened by rubber belts 209 to press against the outside of the ventilation tube 3, so that the ventilation tube 3 can be inserted into the patient's mouth and locked in position after the length is set, thereby facilitating the use of patients with different intubation lengths.

[0040] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A multi-channel oropharyngeal ventilation device, characterized in that: It comprises a protective cover (1) and a fixing plate (2), wherein the fixing plate (2) is arranged on the inner side of the protective cover (1), a vent pipe (3) is longitudinally passed through the middle of the fixing plate (2), and a pressing plate (4) is arranged below the vent pipe (3); The fixing plate (2) is provided with a guide hole (201) for accommodating the ventilation pipe (3) in the middle, and an inverted "T"-shaped slide groove (202) is connected to the bottom of the guide hole (201). The pressing plate (4) longitudinally penetrates the slide groove (202) and slides with the slide groove (202). The bottom side of the ventilation pipe (3) is provided with a rack (302) extending along its length direction. Both sides of the slide groove (202) are provided with transversely extending rotating shaft holes (202a). A rotating shaft (203) is transversely penetrated between the two groups of rotating shaft holes (202a), and the rotating shaft (203) and the rotating shaft hole (202a) are clearance-matched. The top side of the pressing plate (4) is provided with multiple groups of tooth grooves (401) extending along its length direction. A gear (204) is fixed to the middle of the rotating shaft (203), and the upper and lower sides respectively mesh with the rack (302) and the tooth groove (401).

2. A multi-channel oropharyngeal ventilation device according to claim 1, characterized in that: The bottom side of the ventilation pipe (3) is provided with a guide groove (301) for accommodating the rack (302); the top side of the gear (204) extends into the inside of the guide groove (301); and the bottom side of the rack (302) is flush with the opening of the guide groove (301).

3. A multi-channel oropharyngeal ventilation device according to claim 1, characterized in that: The enclosure (1) comprises a rectangular frame-shaped installation frame (101) fixed to the outside of the fixing plate (2), a peripheral edge (102) being fixed at the front opening of the installation frame (101), and the peripheral edge (102) is an arc-shaped structure with a gradually expanding front opening.

4. A multi-channel oropharyngeal ventilation device according to claim 3, characterized in that: A bite pad (5) is arranged on the outside of the protective cover (1), and the bite pad (5) is made of medical rubber material. The bite pad (5) is a rectangular frame structure clamped on the outside of the installation frame (101), and the front and rear side edges of the bite pad (5) are both provided with retaining edges (501) for limiting the tooth occlusal position.

5. A multi-channel oropharyngeal ventilation device according to claim 3, characterized in that: The middle of both sides of the surrounding edge (102) are longitudinally penetrated by holes (102a), and the rear side of the protective cover (1) is provided with an auxiliary belt (6), and the auxiliary belt (6) comprises a U-shaped belt body (601) with an opening facing forward, and two ends of the belt body (601) respectively penetrate two groups of holes (102a), and one end of the belt body (601) is connected to the surrounding edge (102) through a lock buckle, and the other end of the belt body (601) is provided with a tearable Velcro (602) bonded to any position of the outer side of the belt body (601) in the length direction.

6. A multi-channel oropharyngeal ventilation device according to claim 5, characterized in that: The belt body (601) is an elastic belt structure, and a plurality of groups of anti-skid convex strips (603) are evenly distributed on the inner side of the belt body (601) along its length direction, and the anti-skid convex strips (603) are right-angled folded line structures.

7. A multi-channel oropharyngeal ventilation device according to claim 1, characterized in that: The fixing plates (2) on both sides of the ventilation pipe (3) are longitudinally penetrated with accommodating grooves (205), and two groups of shifting rods (207) are transversely symmetrically penetrated in the two groups of accommodating grooves (205). A vertical shaft (206) vertically penetrating the accommodating grooves (205) is fixed in the middle of the shifting rods (207), and the vertical shaft (206) is rotatably matched with the fixing plates (2).

8. A multi-channel oropharyngeal ventilation device according to claim 7, characterized in that: Two groups of C-shaped hoop sheets (208) with openings facing each other are fixed to the rear ends of the two groups of shifting rods (207); the inner sides of the hoop sheets (208) are pressed against the outer wall of the ventilation pipe (3); the outer sides of the hoop sheets (208) are provided with arc-shaped limiting grooves (208a); and circular rubber bands (209) are hooped inside the two groups of limiting grooves (208a) of the two groups of hoop sheets (208).

9. A multi-channel oropharyngeal ventilation device according to claim 1, characterized in that: The outer wall of the ventilation pipe (3) at one end away from the enclosure (1) is surrounded by a plurality of side holes (303); a herringbone-shaped partition (304) is provided inside the ventilation pipe (3), and the interior of the ventilation pipe (3) is divided into a plurality of cavities by the partition (304); a screw sleeve (305) is sleeved on the outer side of one end of the ventilation pipe (3) close to the enclosure (1), and the screw sleeve (305) is threadedly matched with the ventilation pipe (3).

10. A multi-channel oropharyngeal ventilation device according to claim 9, characterized in that: A filter screen (306) covering the end opening of the ventilation pipe (3) is fixed to the end of the screw sleeve (305); the pressing plate (4) is an arc-shaped structure and is made of medical stainless steel; one end of the pressing plate (4) that penetrates into the enclosure (1) is penetrated by a rectangular grabbing groove (402).

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