CN209967321U

CN209967321U - External laryngeal mask of decompression pipe

Info

Publication number: CN209967321U
Application number: CN201920626540.9U
Authority: CN
Inventors: 高宏; 俞卫锋; 黄东晓; 丁娴
Original assignee: Wuxi Sannoa Technology Co Ltd
Current assignee: Wuxi Sannoa Technology Co Ltd
Priority date: 2019-05-01
Filing date: 2019-05-01
Publication date: 2020-01-21
Anticipated expiration: 2029-05-01

Abstract

The utility model relates to a laryngeal mask with an external decompression tube, which comprises a mask body and a breathing tube; the mask body comprises a mask body bottom plate and a mask body, wherein a mask body cavity is arranged in the center area in the mask body, the mask body also comprises a negative pressure suction connecting pipe and an auxiliary pipeline, the negative pressure suction connecting pipe can realize suction and removal of liquid in the throat part while supporting respiration, the auxiliary pipeline is communicated with the negative pressure suction connecting pipe, the auxiliary pipeline is positioned on the back side of the mask body bottom plate, and the negative pressure suction connecting pipe and the auxiliary pipeline are mutually isolated from a respiratory tube cavity and the mask body cavity; set up at least one respectively and the lumen of respiratory tube and the lateral part that the cover body chamber was kept apart and attract the water conservancy diversion structure in cover body head end both sides portion, the lateral part attracts the water conservancy diversion structure and attracts connecting pipe and auxiliary line intercommunication with the negative pressure, and the liquid that produces in the oral cavity, the liquid that flows back in the stomach can be attracted the connecting pipe by the negative pressure and carry out the negative pressure and attract and clear away. The utility model discloses compact structure can effectively clear up the endocrine in oral cavity during breathing support, convenient to use, safe and reliable.

Description

External laryngeal mask of decompression pipe

Technical Field

The utility model relates to a laryngeal mask, in particular to a laryngeal mask with an external decompression tube, which belongs to the technical field of medical instruments.

Background

Laryngeal masks, as a medical device for maintaining the respiratory ventilation of patients, are widely used in clinical anesthesia, emergency or resuscitation due to their non-invasive airway characteristics. With the advance of materials and technology, various improved laryngeal masks are applied clinically, but the oral endocrine is not effectively cleaned during the respiratory support period.

Laryngeal masks are more commonly used in general anesthesia for children and the elderly; the children have more oral secretion, the children have not developed and matured gastric cardia sphincter, and the possibility of vomiting and reflux is higher, so the child has higher probability of aspiration. The vertical distance between the upper and lower teeth of children and old people is small, loose teeth are mostly existed, and the too thick respiratory tube part of the laryngeal mask easily causes the injury of the oral and dental parts, even the teeth fall off.

Disclosure of Invention

The utility model aims at overcoming the deficiencies that exist among the prior art, provide an external laryngeal mask of decompression pipe, its compact structure can effectively clear up the endocrine in oral cavity during breathing support, convenient to use, safe and reliable.

According to the technical scheme provided by the utility model, the laryngeal mask with the external decompression tube comprises a mask body which can cover oral mucosa around the glottis and a breathing tube which is hermetically connected with the mask body; the mask body comprises a mask body bottom plate and a mask main body arranged on the front surface of the mask body bottom plate, a mask body cavity which can be communicated with the breathing tube is arranged in the center area in the mask main body,

the negative pressure suction connecting pipe and the auxiliary pipeline are mutually isolated from the cavity of the breathing tube and the cavity of the mask body; set up at least one respectively and the lumen of respiratory tube and the lateral part that the cover body chamber was kept apart and attract the water conservancy diversion structure in cover body head end both sides portion, the lateral part attracts the water conservancy diversion structure and attracts connecting pipe and auxiliary line intercommunication with the negative pressure, and the liquid that produces in the oral cavity, the liquid that flows back in the stomach can be attracted the connecting pipe by the negative pressure and carry out the negative pressure and attract and clear away.

The lateral part attracts the diversion structure to include the lateral part that link up the lateral part of the cover body attracts the diversion hole and with the lateral part attracts the lateral part drainage groove that the diversion hole communicates.

The auxiliary pipeline is positioned at the back side of the cover body bottom plate and comprises a stomach tube groove concavely arranged at the back side of the cover body bottom plate, the stomach tube groove is positioned at the head end of the cover body bottom plate on the cover body bottom plate, the long axis direction of the stomach tube groove is consistent with the long axis direction of the cover body bottom plate, the stomach tube groove is positioned in the central area of the cover body bottom plate, and the stomach tube groove penetrates through the head end of the cover body; the length of the stomach tube groove is not less than 3 cm.

The bottom of the hood body cavity is provided with a supporting lug which comprises a stomach tube groove bulge corresponding to the stomach tube groove.

The auxiliary pipeline also comprises a decompression pipe communicated with the gastric tube groove, the decompression pipe can allow a gastric tube to be placed in, and the gastric tube can move in the gastric tube groove after being pushed to enter the decompression pipe;

the decompression pipe is located the respiratory tube outside, and decompression pipe and respiratory tube, negative pressure suction connecting pipe are the syntropy and distribute in the outside of cover main part tail end.

At least one circle of sealing body is arranged on the cover main body, and the sealing body is distributed on the outer ring of the cover main body and/or the inner ring of the cover body cavity in a surrounding manner; when the cover main body is annularly covered around the glottis for breathing support, the air in the cover cavity can be prevented from escaping through the joint part of the sealing body and the mucosa around the glottis by the sealing body.

The seal includes sealed gasbag or seal membrane, and when the seal was the seal membrane, the outer lane edge of seal membrane was to keeping away from the direction perk of cover body bottom plate.

The mask also comprises an image information acquisition mechanism arranged in the mask body cavity, and the image information acquisition mechanism can acquire and output required image information.

The image information acquisition mechanism comprises a camera positioned in the cover body cavity and a display screen positioned outside the cover body cavity, wherein the display screen is in adaptive connection with the camera and can display and output image information acquired by the camera through the display screen.

A temperature sensing probe for monitoring the temperature of the throat is embedded at the head end of the bottom plate of the cover body.

The utility model has the advantages that: set up the lateral part and attract water conservancy diversion structure in the cover main part, the lateral part attracts water conservancy diversion structure can be attracted the water conservancy diversion hole by the lateral part and lateral part drainage groove constitutes, attract the water conservancy diversion hole through the lateral part, the lateral part drainage groove can be with covering the secretion water conservancy diversion in the main part to the stomach tube inslot, then attract after being connected with outside negative pressure equipment through attracting the connecting pipe, ensure can effective oral endocrine between breathing support, can conveniently realize breathing the temperature acquisition during supporting through set up temperature-sensing probe in the stomach tube inslot, can realize image information's collection through image information acquisition mechanism, realize the effect of visual laryngeal mask, high durability and convenient use, safety and reliability.

Drawings

Fig. 1 is a perspective view of the side of the present invention.

Fig. 2 is a front perspective view of the present invention.

Fig. 3 is a perspective view of the back of the present invention.

Fig. 4 is an enlarged view of B in fig. 3.

Description of reference numerals: 1-cover body bottom plate, 2-cover body, 3-breathing tube, 4-pressure reducing tube, 5-pressure reducing tube connecting block, 6-tube body handle, 7-respirator interface, 8-suction connecting tube, 9-suction connecting head, 10-internal groove, 11-internal sealing film, 12-side suction flow guide hole, 13-side drainage groove, 14-stomach tube groove, 15-supporting lug, 16-cover body cavity, 17-main body external sealing film and 18-cover body opening.

Detailed Description

The invention is further described with reference to the following specific drawings and examples.

As shown in fig. 1, 2, 3 and 4: in order to effectively clean the incretion in the oral cavity during the period of breathing support, the utility model comprises a cover body which can cover the oral mucosa around the glottis and a breathing tube 3 which is connected with the cover body in a sealing way; the mask body comprises a mask body bottom plate 1 and a mask main body 2 arranged on the front surface of the mask body bottom plate 1, a mask body cavity 16 capable of being communicated with the breathing tube 3 is arranged in the center area in the mask main body 2,

the mask is characterized by further comprising a negative pressure suction connecting pipe 8 and an auxiliary pipeline, wherein the negative pressure suction connecting pipe 8 can realize suction and removal of liquid in the throat part while supporting respiration, the auxiliary pipeline is communicated with the negative pressure suction connecting pipe 8, the auxiliary pipeline is positioned on the back side of the mask body bottom plate 1, and the negative pressure suction connecting pipe 8 and the auxiliary pipeline are isolated from the tube cavity of the breathing tube 3 and the mask body cavity 16; at least one side suction flow guide structure isolated from the tube cavity of the breathing tube 3 and the mask body cavity 16 is respectively arranged at the two sides of the head end of the mask body, the side suction flow guide structure is communicated with the negative pressure suction connecting tube 8 and the auxiliary pipeline, and liquid generated in the oral cavity and liquid flowing back in the stomach can be sucked and removed by the negative pressure suction connecting tube 8.

The auxiliary pipeline comprises a stomach tube groove 14 which is concavely arranged on the back surface of the cover body bottom plate 1, the stomach tube groove 14 is arranged at the head end of the cover body bottom plate 1 on the cover body bottom plate 1, the long axis direction of the stomach tube groove 14 is consistent with the long axis direction of the cover body bottom plate 1, the stomach tube groove 14 is arranged in the central area of the cover body bottom plate 1, and the stomach tube groove 14 penetrates through the head end of the cover body; the length of the gastric canal 14 is not less than 3 cm.

Specifically, the cover body, respiratory tube 3 all adopt the material that accords with medical standard to make, when using, the cover body can encircle the cage at the oral cavity mucosa around the glottis, generally, the tip that the cover body is connected with respiratory tube 3 is the tail end of the cover body, the other end of the cover body forms the head end of the cover body promptly, the shape etc. that the cooperation formed between the cover body and the respiratory tube 3 is the same with current laryngeal mask, the cover body is heart-shaped or oval promptly, the regional bending that is close to the cover body of respiratory tube 3, utilize the bending of respiratory tube 3 can be convenient for realize operations such as air feed insertion.

The embodiment of the utility model provides an in, cover body bottom plate 1, cover main part 2 form the structure of the cover body, and cover main part 2 sets up on cover body bottom plate 1's front, utilizes cover main part 2 can encircle the oral mucosa of cage cover around the glottis. Generally, the cover body base plate 1 and the cover body 2 may adopt an integrally formed structure, the thickness of the cover body 2 is greater than that of the cover body base plate 1, and the cover body 2 and the cover body base plate 1 may be made of flexible materials such as medical silica gel, so that the air passage, glottis and the like are not damaged when in use. In order to meet the air supply requirement, a cover body cavity 16 is arranged in the cover main body 2, the cover body cavity 16 is located in the center of the cover main body 2, the breathing tube 3 is communicated with the cover body cavity 16 and can be connected with a respirator and the like through the breathing tube 3, and an air supply channel can be formed through the connection and matching of the breathing tube 3 and the cover body cavity 16 after the cover main body 2 covers oral mucosa around a glottis.

The negative pressure suction connecting pipe 8, the auxiliary pipeline, the lumen of the breathing tube 3 and the mask cavity 16 are isolated from each other, specifically, the negative pressure suction connecting pipe 8, the lumen of the breathing tube 3 and the mask cavity 16 are in a non-communicating state, and the auxiliary pipeline, the lumen of the breathing tube 3 and the mask cavity 16 also need to be in a non-communicating state. When the lateral suction diversion structure is communicated with the negative pressure suction connection pipe 8 and the auxiliary pipeline, the lateral suction diversion structure is also in a non-communicated state with the lumen of the breathing tube 3 and the mask body cavity 16.

When the negative pressure suction is performed through the negative pressure suction connecting pipe 8, the liquid generated in the oral cavity can be sucked and removed through the side suction flow guide structure and/or the auxiliary pipeline, the liquid flowing back in the stomach can be sucked and removed through the auxiliary pipeline, the specific suction path can be determined by the position relationship between the negative pressure suction connecting pipe 8 and the side suction flow guide structure, and the auxiliary pipeline, if the negative pressure suction connecting pipe 8 is close to the side suction flow guide structure, the liquid generated in the oral cavity can be directly sucked by the negative pressure suction connecting pipe 8, and when the negative pressure suction connecting pipe 8 is communicated with the side suction flow guide structure through the auxiliary pipeline, the liquid generated in the oral cavity needs to enter the auxiliary pipeline to be sucked under the negative pressure, and as shown in fig. 3 and 4, the communication condition of the negative pressure suction connecting pipe 8 with the side suction flow guide.

In the embodiment of the present invention, the auxiliary pipeline includes a stomach tube groove 14 recessed in the back of the cover body bottom plate 1, the stomach tube groove 14 is located at the head end of the cover body bottom plate 1 on the cover body bottom plate 1, the long axis direction of the stomach tube groove 14 is consistent with the long axis direction of the cover body bottom plate 1, the stomach tube groove 14 is located in the central area of the cover body bottom plate 1, and the stomach tube groove 14 penetrates through the head end of the cover body; the length of the gastric canal 14 is not less than 3 cm.

The trough bottom of the stomach tube trough 14 is close to the mask body 2, namely the stomach tube trough 14 is positioned on the back of the mask body bottom plate 1. The tail part of the suction connecting pipe 8 is provided with a suction connector 9, the auxiliary pipeline further comprises a decompression pipe 4 communicated with the gastric tube groove 14, the decompression pipe 4 can allow a gastric tube to be placed in, and the gastric tube can move in the gastric tube groove 14 after being pushed to enter the decompression pipe 4;

decompression pipe 4 is located the respiratory tube 3 outside, and decompression pipe 4 and respiratory tube 3, negative pressure suction connecting pipe 8 are the syntropy and distribute in the outside of cover main part 2 tail end.

When in specific use, the decompression tube 4 and the gastric tube groove 14 can be matched with a gastric tube; the gastric tube can be embedded in the gastric tube groove 14, or can pass through the decompression tube 4 and can be pushed to be placed into the esophagus through the gastric tube groove 14. When the stomach tube is placed into the stomach through the decompression tube 4 and the stomach tube groove 14, the stomach tube can drain gastric juice, so that flatulence and reflux aspiration are prevented. Stomach tube groove 14 with the stomach tube adaptation, after the stomach tube inlays to be put in stomach tube groove 14, utilize stomach tube and stomach tube groove 14's cooperation to avoid the stomach tube to insert the location of back influence cover main part 2 and glottis, and can not influence the leakproofness of cover main part 2 and glottis joint portion. The decompression pipe 4 is located outside the respiratory tube 3, generally, decompression pipe 4 and respiratory tube 3 and attract connecting pipe 8 to be the syntropy and arrange, when decompression pipe 4 is located outside respiratory tube 3, can effectively reduce the external diameter of respiratory tube 3, when using, children, the left and right sides space between the upper and lower teeth of old man is great, can effectively hold respiratory tube 3 and decompression pipe 4, reduce the damage to the oro-dental part when guaranteeing to breathe and support, improve adaptability and the security of using.

In order to meet the requirement of negative pressure suction during the air supply process of the laryngeal mask, the suction connecting pipe 8 can be connected with external negative pressure suction equipment through the suction connector 9, and secretions and the like in the oral cavity during the air supply process can be sucked out through the matching of the negative pressure equipment and the suction connecting pipe 8. Specifically, the head of the suction connecting pipe 8 connected with the suction mechanism is arranged in the cover body base plate 1, the end part of the suction connecting pipe 8 close to the head end of the cover body base plate 1 is communicated with the gastric tube groove 14, the end part of the suction connecting pipe 8 far away from the cover body base plate 1 can be connected with a negative pressure suction device, after the suction connecting pipe 8 is connected with the negative pressure suction device, negative pressure can be formed in the gastric tube groove 14 through the suction connecting pipe 8, after negative pressure is formed in the gastric tube groove 14, and gas, gastric juice or oral secretion and the like in the stomach can enter the gastric tube groove 14 and are sucked out.

When concrete implementation, attract connecting pipe 8 to pass through to attract connector 9 and the negative pressure to attract equipment can adopt to dismantle to be connected, and the negative pressure attracts equipment can adopt current common structural style, specifically can select as required, and this place is no longer repeated.

The embodiment of the utility model provides an in, the lateral part attracts water conservancy diversion structure can symmetric distribution in the head of cover main part 2, or only sets up in one side of cover main part 2, and particular case can select as required, and here is no longer repeated. The lateral suction diversion structure comprises a lateral suction diversion hole 12 which penetrates through the lateral part of the cover body and a lateral drainage groove 13 which is communicated with the lateral suction diversion hole 12.

The lateral suction diversion hole 12 penetrates through the cover main body 2, the lateral suction diversion hole 12 is communicated with the gastric canal groove 14, and secretions and the like on the cover main body 2 can be guided into the gastric canal groove 14 through the lateral suction diversion hole 12, so that the subsequent suction of the secretions in the gastric canal groove 14 is facilitated. When the lateral suction guiding hole 12 penetrates the mask body 2 and is communicated with the gastric tube groove 14, the lateral suction guiding hole 12 and the mask body cavity 16 are not communicated, namely the breathing support of the mask body cavity 16 is not influenced, and the mutual isolation between the breathing support and the negative pressure suction can be realized without mutual influence.

In addition, lateral part drainage groove 13 and lateral part suction diversion hole 12 intercommunication, the degree of depth of lateral part drainage groove 13 is less than the wall thickness of cover main part 2, lateral part drainage groove 13 can not link up cover main part 2 promptly, the length direction of lateral part drainage groove 13 is unanimous with the length direction of cover main part 2, when sucking the secretion on the cover main part 2 through the lateral part and leading diversion hole 12 and carrying out the water conservancy diversion, utilize lateral part drainage groove 13 and lateral part suction diversion hole 12 cooperation can avoid the secretion to attract the lateral part and lead diversion hole 12 shutoff, improve the stability and the reliability of the water conservancy diversion of secretion suction.

The head end and the cover main part 2 of respiratory tube 3 are connected, and the tail end of respiratory tube 3 sets up breathing machine interface 7, still sets up body handle 6 at the afterbody of respiratory tube 3. The embodiment of the utility model provides an in, respiratory tube 3 can be connected with outside breathing machine through breathing machine interface 7, and the gas that the breathing machine provided can be through respiratory tube 3 entering cover body cavity 16 in, realize required breathing and support. The breathing tube 3 can be conveniently held through the tube body handle 6, and the tube body handle 6 corresponds to the back of the cover body bottom plate 1 on the breathing tube 3. The ventilator interface 7 may specifically take the form of a structure adapted to a ventilator, which is well known to those skilled in the art and will not be described in detail herein. The inner wall of the mask main body 2 can be provided with a plurality of inner grooves 10, the wall thickness of the mask main body 2 can be reduced through the inner grooves 10, and the laryngeal mask can be properly bent and adjusted in height according to the width of a patient sound channel when in use.

Furthermore, the stomach tube groove 14 is located in the central area of the cover body bottom plate 1, the length direction of the stomach tube groove 14 is consistent with the length direction of the cover body bottom plate 1, the stomach tube groove 14 penetrates through the head end of the cover body bottom plate 1, the decompression tube 4 is fixed with the breathing tube 3, and a temperature sensing probe for monitoring the temperature of the throat is embedded in the head end of the cover body bottom plate 1.

The embodiment of the utility model provides an in, the length of stomach tube groove 14 is less than the length of the cover body bottom plate 1, and the width of stomach tube groove 14 is less than the width of the cover body bottom plate 1, generally, the size and the stomach tube size adaptation in stomach tube groove 14, the stomach tube can be inlayed in stomach tube groove 14 promptly. The stomach tube groove 14 runs through the head end of the cover body bottom plate 1, namely the head end of the cover body bottom plate 1 is provided with an opening, and when a stomach tube is arranged in the stomach tube groove 14, the stomach tube can not enter the stomach. After the decompression pipe 4 communicates with the stomach tube groove 14, when the decompression pipe 4 is not embedded with the stomach tube, the negative pressure state in the stomach tube groove 14 can be adjusted through the size of the tail end opening of the decompression pipe 4, namely when external negative pressure is fixed, the negative pressure in the stomach tube groove 14 can be reduced, and the decompression purpose is realized. Stomach tube groove 14 runs through at cover body bottom plate 1 back the head end of cover body bottom plate 1, the length of stomach tube groove 14 is not less than 3cm to can make the stomach tube effectively inlay and put in stomach tube groove 14, and realize and the effective cooperation between stomach tube groove 14.

During specific implementation, the head end of decompression pipe 4 is located cover body bottom plate 1 to decompression pipe 4 and stomach tube groove 14 intercommunication, except that the other parts outside the head all are located cover body bottom plate 1 and cover main part 2, also are located respiratory tube 3 promptly outside, and decompression pipe 4 is fixed with respiratory tube 3 through decompression pipe connecting block 5. After the decompression tube 4 is fixed with the breathing tube 3, the gastric tube is not influenced to be arranged in the decompression tube 4, and the gastric tube entering the decompression tube 4 is not influenced to be embedded in the gastric tube groove 14 and enter the stomach after being embedded in the gastric tube groove 14.

The embodiment of the utility model provides an in, temperature-sensing probe can set up on the lateral wall of stomach tube groove 14 or be located the cover body bottom plate 1 outside the 14 notches of stomach tube groove, when the stomach tube inlays to be put in stomach tube groove 14 promptly, also can not influence the collection to the throat temperature through temperature-sensing probe. The temperature-sensing probe can adopt the current form commonly used, if adopt temperature sensor, the temperature after the temperature-sensing probe gathers can be through wired or wireless mode transmission, and when the temperature that the temperature-sensing probe gathered was through wired mode transmission, the last cable that need set up of temperature-sensing probe, the cable can be buried underground in cover body bottom plate 1 and respiratory tube 3, but need ensure cable transmission signal's stability and avoid the safety problem that the cable brought in laryngeal mask use. When the temperature sensing probe transmits the temperature signal in a wireless manner, the specific wireless transmission form can be selected according to the requirement, and is not described again here.

The temperature can be acquired in real time through the temperature sensing probe, and the problem that the temperature of the throat cannot be effectively acquired in the respiratory support or operation process at present can be solved. The embodiment of the utility model provides an in, the temperature that temperature-sensing probe gathered can be received and handle by relevant treater, and the treater can be for an equipment or current medical treatment equipment that has display screen etc. as long as can realize receiving, handling and demonstration all can to the temperature data that temperature-sensing probe detected, and concrete conditions is known for this technical field personnel, and here is no longer repeated.

Further, a support lug 15 is provided at the bottom of the mask body cavity 16, and the support lug 15 includes a pressure regulating groove protrusion corresponding to the gastric canal groove 14.

The embodiment of the utility model provides an in, support lug 15 is located cover body chamber 16, and support lug 15 just corresponds with gastric canal groove 14, and support lug 15 is the arc in cover body chamber 16, and support lug 15 is in the protrusion in cover body bottom plate 1 in cover body chamber 14 to it is protruding to form the pressure regulating groove, and of course, support lug 15 also can adopt the not just position state that corresponds with gastric canal groove 14. Further, the support projection 15 may further include a suction connection tube protrusion corresponding to the suction connection tube 8, and the height of the suction connection tube protrusion may be smaller than the gastrostomy tube protrusion.

When the mask main body 2 covers the oral mucosa around the glottis, the matching of the supporting lug 15 and the epiglottis is utilized to avoid the epiglottis from blocking the communication between the breathing tube 3 and the mask body cavity 16, namely, the gas channel can not be blocked, and the stability and the reliability of ventilation are ensured.

Further, at least one circle of sealing body is arranged on the cover main body 2, and the sealing body is distributed around the outer ring of the cover main body 2 and/or the inner ring of the cover body cavity 16; when the cover main body 2 is used for breathing support around the glottis, the gas in the cover body cavity 16 is prevented from escaping through the joint portion between the sealing body and the mucous membrane around the glottis by the sealing body.

In order to ensure the air supply state, at least one circle of sealing body is arranged at the upper part of the cover main body 2, and the sealing body is distributed around the outer ring of the cover main body 2 and/or the inner ring of the cover body cavity 16; when the cover main body 2 is covered on the glottis, the joint portion between the cover main body 2 and the glottis can be sealed by the sealing body, and the ventilation effect can be ensured. That is, the sealing body may be uniformly distributed on and along the outer wall of the mask body 2, or the sealing body is disposed in the mask body cavity 16, the shape of the sealing body in the mask body cavity 16 is the same as that of the mask body cavity 16, and the normal ventilation state of the mask body cavity 16 is not affected by the sealing body in the mask body cavity 16; of course, the sealing body may be provided on the outer wall of the cover main body 2 and in the cover body cavity 16, and the distribution state of the sealing body on the cover main body 2 may be selected as needed.

The embodiment of the utility model provides an in, the seal can adopt sealed gasbag or seal membrane, when the seal adopts sealed gasbag, still need including sealed gasbag connection the gasbag even manage and with the even tub seal valve of gasbag through the even pipe of gasbag and the even tub seal valve of gasbag can realize the gassing control of filling to sealed gasbag, and the process that concrete realization was filled the gassing to sealed gasbag is current the same, and here is no longer repeated.

The upper side of the cover main body 2 is provided with a cover body opening 18, the cover body cavity 16 can be in a ventilation state through the cover body opening 18, when the sealing body is arranged at the inner ring of the cover body cavity 16, namely, the sealing body is arranged at the inner ring of the cover body opening 18, namely, the sealing airbag or the sealing film is arranged in the cover body opening 18, the situation that the sealing body adopts the sealing film is shown in figures 1 and 2, namely, the sealing film 11 arranged in the cavity of the inner ring of the cover body opening 18 and the main body outer sealing film 17 positioned at the outer ring of the cover main body 2 are obtained, the sealing film 11 arranged in the cavity of the inner ring of the cover body opening 18 can adopt a multilayer form, and the specific number of.

When the sealing body adopts the sealing film, compared with the existing laryngeal mask, the mask body does not need to be provided with structures such as an air bag and the like, when the laryngeal mask is ventilated, the cavity 16 of the mask body is in a positive pressure state, the sealing film can be tightly attached to the joint part of the mask main body 2 and oral mucosa around the glottis by utilizing air pressure during air supply, namely the sealing film can surround the mucosa around the glottis and is used for sealing, and the using success rate and the safety of the laryngeal mask are improved under the condition that air is not required to be inflated and deflated; the extremely low pressure of the mucous membrane part can achieve enough sealing, and the throat pain of a patient after operation is reduced.

The sealing film can be made of a thin film and is matched with the mask main body 2, so that the complexity, the production cost and the use cost of the laryngeal mask can be effectively reduced. During the concrete implementation, the edge of seal membrane is to keeping away from the perk of cover body bottom plate 1, and after the edge perk of seal membrane, during the air feed, further can improve the sealed effect of seal membrane to cover main part 2 and glottis joint portion.

Further, the medical mask further comprises an image information acquisition mechanism arranged in the mask body cavity 16, and required image information can be acquired and output through the image information acquisition mechanism.

The embodiment of the utility model provides an in, through image information acquisition mechanism and the cooperation of the cover body, can realize the purpose of visual laryngeal mask. When the image information acquisition mechanism is specifically implemented, the image information acquisition mechanism can comprise a glass fiber tube and an image display screen detachably connected with the glass fiber tube, one end of the glass fiber tube is positioned in the cover body cavity 16, and after the other end of the glass fiber tube is connected with the image display screen, the image information can be displayed and output through the image display screen. One end of the glass fiber tube is positioned in the mask body cavity 16, the main body of the glass fiber tube can be embedded in the breathing tube 3, and the other end of the glass fiber tube penetrates out of the breathing tube 3. Generally, a fiber pipe joint can be arranged at the end part of the glass fiber pipe penetrating out of the breathing pipe 3, a display joint matched with the fiber pipe joint is arranged on the image display screen, after the display joint is in adaptive connection with the fiber pipe joint, the connection between the image display screen and the glass fiber pipe can be realized, and the disassembly connection between the image display screen and the glass fiber pipe can also be realized through the matching between the display joint and the fiber pipe joint.

During concrete implementation, can set up image sensor, light source and image display screen, image sensor, the required power of light source work in the demonstration connects, the form of power can be selected as required, if adopt lithium cell etc. through image sensor, light source etc. and glass fiber tube cooperation, can realize gathering the image of 16 corresponding positions of breathing pipe to show output through the image display screen. The image sensor can adopt a camera, the image display screen can adopt a display screen and the like, the cooperation of the glass fiber tube and the image display screen can be realized by utilizing the means of the prior art to realize the image acquisition and transmission process, the specific realization mode is well known by people in the technical field, and the details are not repeated here. Of course, the camera can also be directly arranged in the cover body cavity 16, the display screen matched with the camera is arranged outside the cover main body 2, the image collected by the camera is transmitted in a wired or wireless mode and the like, the collected image is received and then output through the display screen, the specific transmission mode of the image collected by the camera is the same as the prior mode, the specific matching process of the camera and the display screen is specifically known by people in the technical field, and the detailed description is omitted.

Claims

1. A laryngeal mask with an external decompression tube comprises a mask body capable of covering oral mucosa around a glottis and a breathing tube (3) hermetically connected with the mask body; the cover body including cover body bottom plate (1) and set up in cover body main part (2) on cover body bottom plate (1) is positive, the center area in the cover main part (2) sets up cover body chamber (16) that can communicate with breathing tube (3), characterized by:

the device also comprises a negative pressure suction connecting pipe (8) which can realize suction and removal of liquid in the throat while supporting respiration and an auxiliary pipeline communicated with the negative pressure suction connecting pipe (8), wherein the negative pressure suction connecting pipe (8) and the auxiliary pipeline are isolated from the tube cavity of the breathing tube (3) and the mask body cavity (16); at least one side suction flow guide structure isolated from the tube cavity of the breathing tube (3) and the mask body cavity (16) is respectively arranged at the two sides of the head end of the mask body, the side suction flow guide structure is communicated with the negative pressure suction connecting tube (8) and the auxiliary pipeline, and liquid generated in the oral cavity and liquid flowing back in the stomach can be sucked by the negative pressure suction connecting tube (8) for negative pressure suction and removal.

2. A decompression tube external laryngeal mask according to claim 1, wherein: the lateral suction diversion structure comprises a lateral suction diversion hole (12) which penetrates through the lateral part of the cover body and a lateral drainage groove (13) which is communicated with the lateral suction diversion hole (12).

3. A decompression tube external laryngeal mask according to claim 1, wherein: the auxiliary pipeline is positioned on the back side of the cover body bottom plate (1), the auxiliary pipeline comprises a gastric canal groove (14) which is concavely arranged on the back side of the cover body bottom plate (1), the gastric canal groove (14) is positioned at the head end of the cover body bottom plate (1) on the cover body bottom plate (1), the long axis direction of the gastric canal groove (14) is consistent with the long axis direction of the cover body bottom plate (1), the gastric canal groove (14) is positioned in the central area of the cover body bottom plate (1), and the gastric canal groove (14) penetrates through the head end of the cover body; the length of the stomach tube groove (14) is not less than 3 cm.

4. A decompression tube external laryngeal mask according to claim 3, wherein: and a supporting lug (15) is arranged at the bottom of the mask body cavity (16), and the supporting lug (15) comprises a gastric canal bulge corresponding to the gastric canal (14).

5. A decompression tube external laryngeal mask according to claim 3, wherein: the auxiliary pipeline also comprises a decompression tube (4) communicated with the gastric tube groove (14), the decompression tube (4) can allow a gastric tube to be placed in, and the gastric tube can move in the gastric tube groove (14) after being pushed into the decompression tube (4);

decompression pipe (4) are located respiratory tube (3) outside, and decompression pipe (4) and respiratory tube (3), negative pressure suction connecting pipe (8) are the syntropy and distribute in the outside of cover main part (2) tail end.

6. A decompression tube external laryngeal mask according to claim 1, wherein: at least one circle of sealing body is arranged on the cover main body (2), and the sealing body is distributed around the outer ring of the cover main body (2) and/or the inner ring of the cover body cavity (16); when the cover main body (2) is annularly covered around the glottis for breathing support, the gas in the cover body cavity (16) can be prevented from escaping through the joint part of the sealing body and the mucosa around the glottis by the sealing body.

7. A decompression tube external laryngeal mask according to claim 6, wherein: the seal includes sealed gasbag or seal membrane, and when the seal was the seal membrane, the outer lane edge of seal membrane was to keeping away from the direction perk of cover body bottom plate (1).

8. A decompression tube external laryngeal mask according to claim 1, wherein: the medical mask further comprises an image information acquisition mechanism arranged in the mask body cavity (16), and required image information can be acquired and output through the image information acquisition mechanism.

9. A decompression tube external laryngeal mask according to claim 8, wherein: the image information acquisition mechanism comprises a camera positioned in the cover body cavity (16) and a display screen positioned outside the cover body cavity (16), wherein the display screen is in adaptive connection with the camera, and the image information acquired by the output camera can be displayed through the display screen.

10. A decompression tube external laryngeal mask according to claim 1, wherein: a temperature sensing probe for monitoring the temperature of the throat is embedded at the head end of the cover body bottom plate (1).