CN105498061A - Laryngeal mask capable of sucking sputum - Google Patents

Laryngeal mask capable of sucking sputum Download PDF

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Publication number
CN105498061A
CN105498061A CN201610043854.7A CN201610043854A CN105498061A CN 105498061 A CN105498061 A CN 105498061A CN 201610043854 A CN201610043854 A CN 201610043854A CN 105498061 A CN105498061 A CN 105498061A
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CN
China
Prior art keywords
relief
channel
chamber
laryngeal mask
attraction channel
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Granted
Application number
CN201610043854.7A
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Chinese (zh)
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CN105498061B (en
Inventor
高宏
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WUXI SHENGNUOYA TECHNOLOGY Co.,Ltd.
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高宏
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Priority to CN201610043854.7A priority Critical patent/CN105498061B/en
Publication of CN105498061A publication Critical patent/CN105498061A/en
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Publication of CN105498061B publication Critical patent/CN105498061B/en
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04Tracheal tubes
    • A61M16/0463Tracheal tubes combined with suction tubes, catheters or the like; Outside connections
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2210/00Anatomical parts of the body
    • A61M2210/06Head
    • A61M2210/0625Mouth
    • A61M2210/065Throat; Pharynx

Abstract

The invention discloses a laryngeal mask capable of sucking sputum. The laryngeal mask capable of sucking the sputum comprises a respiratory channel, a sucking channel and a decompression channel, wherein the respiratory channel is used for being communicated with a respiratory tract and an aditus glottidis of a patient for ventilation, the sucking channel is used for sucking the sputum or gastric fluid, and the decompression channel is used for decompression of the sucking channel. The respiratory channel comprises a laryngeal mask body, a ventilation duct and a respirator connector which are communicated hermetically sequentially. The sucking channel is a closed duct, a head-end sucking port is arranged at a gastric decompression duct outlet position close to the head end of the mask body, and a tail-end sucking port is arranged at the portion, outside an oral cavity, of the respiratory channel. The decompression channel is provided with a plurality of decompression holes containing the sucking channel and distributed along a long axis of the sucking channel. The laryngeal mask capable of sucking the sputum is simple in structure, safe and practical, is capable of cleaning the sputum and backflow gastric fluid in the oral cavity during ventilation, and cannot cause injuries to the oropharynx wall due to negative pressure when the fluids are cleaned.

Description

Can suction sputum laryngeal mask
Technical field
The present invention relates to a kind of breather laryngeal mask, especially one can suction sputum laryngeal mask, belongs to the technical field of medical apparatus and instruments.
Background technology
Breather laryngeal mask is one of ventilation consumptive material commonly used at present, has many advantages: (1) uses simple, can set up artificial airway rapidly; (2) be placed to power high, the success rate of unbred medical personnel is 87%, total success rate 99.81%; (3) ventilation is reliable; (4) throat and tunica mucosa tracheae damage is avoided; (5) stimulate little, cardiovascular response is little; (6) air flue when can be used for first aid is set up.
But current clinical laryngeal mask used imperfection, total shortcoming is: can not clear up the sputum in oral cavity before needing to extract laryngeal mask after patient awoke, and laryngeal mask adds the risk that patient inhales after extracting, may cause patient's laryngospasm, bronchospasm etc. by mistake.
Although the two-tube laryngeal mask of LMA is provided with stomach relief chamber, inserts stomach tube by stomach relief chamber or gastric juice is cleared up, can not clear up by boil on the nape opposite the mouth luminal sectetion thing, can not reduce that oral secretion causes and occur and risk.
Produce by using anticholinergic agent to reduce oral secretion although clinical, anticholinergic agent limited efficiency, and the restless risk of waking up period patient may be increased, make patient's sputum too thickness can not get rid of, be unfavorable for patient postoperative rehabilitation.
Clinical needs are a kind of can at anesthetic stage and the laryngeal mask that can carry out effectively cleaning before terminating Breathing Suppotion to oral cavity and laryngeal mask airway chamber liquid.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide one can suction sputum laryngeal mask, be provided with attraction channel laryngeal mask airway passage is other, effectively can clear up intraoral sputum; Bag is received attraction channel and is arranged relief passage and effectively can reduce pressure to attraction channel, and avoid attraction channel to attract negative pressure to cause damage to oral mucosa, structure is simple, and cost is low, safe and reliable.
According to technical scheme provided by the invention, can suction sputum laryngeal mask, comprise to be communicated with breathing pipeline and patient's glottis mouth for ventilating respiration channel, for aspirating sputum or the attraction channel of the gastric juice that backflows and the relief passage for regulating attraction channel negative pressure pressure.Described respiration channel comprises the laryngeal mask cover body of airtight connection successively, breather and respirator interface.Described laryngeal mask cover body arranges the relief pipe for reducing pressure to gastral cavity foremost, and the head end suction port of described attraction channel is arranged on and closes on relief pipe exit, exports be not communicated with relief pipe.The tail end of described attraction channel attracts interface to be arranged at outside oral cavity.The head end of described attraction channel or attraction channel is contained in the relief chamber of relief passage.The relief chamber of described relief passage is arranging some vents away from the offside chamber wall bottom laryngeal mask wall cover body.
Relief passage inner chamber transverse section is that class is oblate, and described attraction channel inner chamber is similar round, and described attraction channel is arranged in relief passage inner chamber.
Attraction channel is connected with the front and rear wall median line of relief passage, and the relief chamber transverse section of described relief passage is attracted channel segmentation and becomes two symmetrical class crescent relief chambers.
The sidewall median line that attraction channel and relief passage close on laryngeal mask cover body side is connected, and the relief chamber transverse section of described relief passage is attracted passage and is reduced to a symmetrical meniscate relief chamber of class.
Attraction channel Bao Na is arranged in the relief chamber of relief passage, is not connected with chamber, the inner side wall of relief passage.
The transverse section of the attraction chamber of attraction channel and the inner chamber of relief pipe comprises similar round, and the attraction chamber of described attraction channel is connected with the central axis of the inner chamber of relief pipe is round and smooth, and when stomach tube is inserted in the attraction chamber along attraction channel, stomach tube can enter the inner chamber of relief pipe smoothly.
The attraction chamber of attraction channel and the inner chamber of relief pipe connect as one tract, but arrange at the joining place of described relief pipe and attraction channel the head end suction port that STH forms described attraction channel.
Some vent areas of relief chamber are all greater than the attraction chamber area of section of attraction channel.
Attraction channel and relief passage are set to the radian curved surface of the surface irregularity mated with palate in oral cavity with palate mucosa contact site in oral cavity.
Advantage of the present invention: being cleared up by attraction channel boil on the nape opposite the mouth intracavity sputum and the gastric juice that backflows when anaesthetizing mechanical ventilation, by relief passage, suction pressure being reduced pressure during cleaning, avoiding negative pressure to tender and lovely oral mucosa damage.Can to oral cavity sputum and the gastric juice that backflows cleaning before operation terminates, avoid laryngeal mask to extract mistiming and inhale the risk caused, this invention structure is simple, and cost is low, safe and reliable.
Accompanying drawing explanation
Fig. 1 is that structural representation is seen in side of the present invention;
Fig. 2 is dorsal view structural representation of the present invention;
Fig. 3 is A tangent plane cross section of the present invention;
Fig. 4 is B tangent plane cross section of the present invention;
Fig. 5 is C tangent plane cross section of the present invention;
Fig. 6 is the B tangent plane cross section of another embodiment of the present invention;
Fig. 7 is the C tangent plane cross section of another embodiment of the present invention.
Description of symbols: 1-respiration channel, 11-laryngeal mask cover body, 12-breather, 13-respirator interface, 2-attraction channel, 21-relief pipe, 22-head end suction port, 23-tail end attract interface, 3-relief passage, 31-relief chamber and 32-vent.
Detailed description of the invention
Below in conjunction with concrete accompanying drawing, the invention will be further described.
As shown in Figures 1 and 2, described one can suction sputum laryngeal mask, comprise to be communicated with breathing pipeline and patient's glottis mouth for ventilating respiration channel 1, for aspirating sputum or the attraction channel of the gastric juice that backflows 2 and the relief passage 3 for regulating attraction channel 2 negative pressure pressure.Described respiration channel 1 comprises the laryngeal mask cover body 11 of airtight connection successively, breather 12 and respirator interface 13.Described laryngeal mask cover body 11 arranges the relief pipe 21 be used for gastral cavity decompression foremost, and the head end suction port 22 of described attraction channel 2 is arranged on and closes on relief pipe 21 exit, exports be not communicated with relief pipe 21.The tail end of described attraction channel 2 attracts interface 23 to be arranged at outside oral cavity.The head end of described attraction channel 2 or attraction channel 2 is contained in the relief chamber 31 of relief passage 3.The relief chamber 31 of described relief passage 3 is arranging some vents 32 away from the offside chamber wall bottom laryngeal mask wall cover body 11.
Respiration channel 1 is the apokoinou construction of current laryngeal mask, and laryngeal mask is put outside patient's glottis by laryngeal mask cover body 11 cover of respiration channel 1, is communicated with, for patient provides Breathing Suppotion by breather 12 and respirator interface 13 with anesthetic machine or respirator.No longer further specific descriptions are done to respiration channel 1 herein.
Arrange relief pipe 21 at the most head end of described laryngeal mask cover body 11 in the present invention, position is identical in use to insert tube head end with the stomach tube of LMA laryngeal mask, is all to insert patient's esophageal aperture portion.Unlike, the stomach tube of LMA is inserted Guan Weiyi closed conduit and is opened on patient's extrabuccal respiration channel 1 top, and insert pipe by stomach tube and can only insert stomach tube or insert sputum aspirator tube and reduce pressure to gastral cavity, there is no other use for it.And relief pipe 21 length is shorter in the present invention, be only 5mm-20mm, namely form the outlet of relief pipe 21.In use, described relief pipe 21 major part or all insert patient's esophageal aperture portion.When stomach cavity pressure is higher, liquid or gas can be discharged by relief pipe 21 through esophagus.
The head end suction port 22 of attraction channel 2 is arranged on and closes on relief pipe 21 exit, and tail end attracts interface 23 to be arranged at respiration channel 2 and is positioned at extrabuccal breather 12 position.The liquid that gastral cavity is got rid of or gas are after esophagus and relief pipe 21 are discharged, and the head end suction port 22 by attraction channel 2 enters attraction channel 2 inner chamber, attract interface 23 to excrete eventually through tail end.Certainly, being operating as during concrete discharge: attract interface 23 to insert attraction channel 2 inner chamber by tail end sputum aspirator tube and stretch out head end suction port 22, under the effect of suction pump negative pressure, liquid is discharged through sputum aspirator tube.
Attraction channel 2 is contained in the relief chamber 31 of relief passage 3, and relief passage 3 arranges some vents 32 away from the back side wall that respiration channel 1 and palate mucosa in oral cavity fully contact.During use, described can suction sputum laryngeal mask patient oral cavity, the head end suction port 22 of described attraction channel 2 is positioned at the lowest part of relief chamber 31, relief chamber 31 is vertical, in oral cavity, the sputum of glandular secretion can enter relief chamber 31 through some vents 32 of relief passage 3 under gravity, and be collected at the lowest part of relief chamber 31, i.e. the position of the head end suction port 22 of attraction channel 2.When needing cleaning, directly attract interface 23 to connect adapter for suction unit at the tail end of attraction channel 2, or attract interface 23 to insert sputum aspirator tube cleaning by the tail end of attraction channel 2.
Now, the meaning that arranges of described relief passage 3 is to make the mucosa of the dorsal part of laryngeal mask cover body 11 and oral cavity palate form certain gap, to make in oral cavity liquid can through gap, the inner chamber of some vents 32 and relief passage 3 accumulates to the head end suction port 22 of attraction channel 2.When the tail end of attraction channel 2 attracts interface 23 to connect negative-pressure suction pipeline, negative pressure conducts to head end suction port 22 through attraction channel 2, and the relief chamber 31 further through relief passage 3 is transmitted to each vent 32.Under suction function, in oral cavity, sputum everywhere enters relief chamber 31 through each vent 32, accelerates to be transmitted to head end suction port 22, and then attracts interface 23 to discharge through attraction channel 2 by tail end.
But the meaning that relief passage 3 is arranged never is limited to be convenient to sputum and to gather cleaning, prior effect is the intensity regulating attraction channel 2 head end suction port 22 negative pressure pressure when clearing up sputum, avoids that negative pressure pressure is excessive to cause damage to tender and lovely oral cavity palate mucosa.
It regulates the principle of the negative pressure intensity of pressure to be: when intraoral sputum or the gastric juice that backflows is more still do not have cleaned time, liquid is detained in the relief chamber 31 of relief passage 3, in relief passage 3 bottom chamber, in relief pipe 21 or head end suction port 22 place of attraction channel 2, when directly attracting attraction channel 2 or attract to clear up liquid by sputum aspirator tube, liquid secretion thing is discharged under suction function.Meanwhile, the part sputum of being detained in relief chamber 31 is cleaned, and it is unobstructed that the relief chamber 31 of relief passage 3 becomes, and the gas outside laryngeal mask enters in relief chamber 31 through each vent 32, and then enters in attraction channel 2 through head end suction port 22.Now, although the head end suction port 22 of attraction channel 2 there is no sputum, but because the relief chamber 31 of relief passage 3 is unblocked, large quantity of air enters attraction channel 2 through the relief chamber 31 of relief passage 3, the negative pressure of the head end suction port 22 of attraction channel 2 reduces, tightly can not be adsorbed in the mucosa of oral cavity palate, even if extract described can also can not causing damage to the mucosa of oral cavity palate by suction sputum laryngeal mask under attraction channel 2 tail end attracts interface 23 to connect the situation of negative-pressure suction pipeline.
As mentioned above, reached by the relief passage 3 attraction channel 2 head end Bao Na being provided with to some vents 32: when very moment intracavity is by more secretions, the vent 32 of relief passage 3 makes relief chamber 31 blocked because secretions flows into, the negative pressure of attraction channel 2 does not flow into by air and reduces, the negative pressure of attraction channel 2 can reach the maximum of vacuum suction path, under this negative pressure, liquid secretion thing is discharged through attraction channel 2 rapidly; When secretions part is discharged, because the secretions in the part reduced pressure hole 32 of relief passage 3 is eliminated, relief chamber 31 stopping state is taken a turn for the better to some extent, air enters relief passage 3 with suitable speed through part reduced pressure hole 32, the negative pressure of attraction channel 2 reduces to some extent, but still can clear up secretions residual in relief passage 3; After secretions drains, the secretions of all vents 32 is all eliminated, the relief chamber 31 of relief passage 3 is unblocked, large quantity of air enters attraction channel 2 through the relief chamber 31 of relief passage 3, the negative pressure of the head end suction port 22 of attraction channel 2 is reduced to the lowest limit, forms a suck and does not attract or the object of more weak attraction oral mucosa.Finally reach oral secretion more time attraction channel 2 attract oral secretion, when oral secretion is cleaned out attraction channel 2 only suck do not attract the object of oral mucosa.
As shown in Figure 1, Figure 2, shown in Fig. 4, Fig. 5, Fig. 6 and Fig. 7, described attraction channel 2 and relief passage 3 are all arranged on side bottom respiration channel 1 laryngeal mask cover body 11.Described can suction sputum laryngeal mask when being used for Breathing Suppotion, the opening of laryngeal mask cover body 11 shrouds at glottis mouth, and described attraction channel 2 effectively will be cleared up sputum, and its head end suction port 22 need be arranged on intraoral lowest part, i.e. position foremost bottom laryngeal mask cover body 11.Putting before this, make attraction channel 2 arrangement optimization, attract unobstructed, namely optimum position is arranged on the bottom side of respiration channel 1 away from laryngeal mask cover body 11 opening.And relief passage 3 preferably bag receive attraction channel 2 and arrange, the dorsal part of respiration channel 1 away from laryngeal mask cover body 11 opening should be arranged side by side in attraction channel 2.
As shown in Fig. 4, Fig. 5, Fig. 6 and Fig. 7, relief passage 3 transverse section is that class is oblate, and described attraction channel 2 is connected with the sidewall of relief passage 3.In Fig. 4 and Fig. 5, described attraction channel 2 is connected with the front and rear wall median line of relief passage 3, relief chamber 31 transverse section of described relief passage 3 is attracted passage 2 and is divided into two symmetrical class crescent relief chambers 31, and described attraction channel 2 is fixed in relief passage 3 by safe.Simultaneously, described attraction channel 2 pairs of relief passages 3 are played a supporting role, the relief chamber 31 of relief passage 3 is made to be divided into two symmetrical class crescent, distortion is not easy under the pressure effect of oral mucosa, decrease the movement of the laryngeal mask cover body 11 caused therefrom, reduce laryngeal mask cover body 11 gas leakage Probability when mechanical ventilation further.
In Fig. 6 and Fig. 7, the sidewall median line that attraction channel 2 and relief passage 3 close on laryngeal mask cover body 11 side is connected, and relief chamber 31 transverse section of described relief passage 3 is attracted passage 2 and is reduced to a meniscate relief chamber 31 of symmetrical class.In this embodiment, when relief passage 3 receives larger pressure, the back side wall that relief passage 3 dissociates with attraction channel 2 may be out of shape, and abuts on the tube wall of attraction channel 2.But the advantage of this embodiment is that relief passage 3 lateral wall increases for the area arranging vent 32, can be more comprehensive to oral cavity liquid secretion thing cleaning everywhere.
Attraction channel 2 can also be arranged in the relief chamber 31 of relief passage 3 by Bao Na, is not connected with chamber, the inner side wall of relief passage 3.Its concrete result of use and above-mentioned two schemes there is no significantly different, just a kind of viable solution.
In addition, it is noted that: attraction channel 2 removes head end suction port 22 and must be arranged in the relief chamber 31 of relief passage 3, the suction pipeline of attraction channel 2 and tail end attract interface 23 can be arranged on outside relief passage 3, and being even arranged on also is feasible in respiration channel 1.Just from best ventilatory effect and optimal appearance, attraction channel 2 is preferably arranged in the relief chamber 31 of relief passage 3.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the transverse section of the attraction chamber of described attraction channel 2 and the inner chamber of relief pipe 21 comprises similar round, the attraction chamber of described attraction channel 2 is connected with the central axis of the inner chamber of relief pipe 21 is round and smooth, when stomach tube is inserted in attraction chamber along attraction channel 2, stomach tube can enter the inner chamber of relief pipe 21 smoothly.
The inner chamber of attraction channel 2 and relief pipe 21 arranges similar round, is convenient to sputum aspirator tube and inserts in tube chamber and clear up backflow gastric juice or the saliva that are collected in attraction channel 2 and relief pipe 21.Certainly, the inner chamber of attraction channel 2 and relief pipe 21 also can be arranged to other shapes, but its tract size need be enough to hold sputum aspirator tube insert.
The attraction chamber of attraction channel 2 and the central axis of the inner chamber of relief pipe 21 be round and smooth to be connected to be convenient to insert when sputum aspirator tube clears up sputum and to draw the attraction chamber of passage 2 and the inner chamber of relief pipe 21, is also convenient to stomach tube and inserts Stomach in Patients intracavity and implement gastral cavity decompression.If the central axis of attraction channel 2 and the inner chamber of relief pipe 21 is not on a slur, when stomach tube or sputum aspirator tube are inserted, to be inevitablely obstructed drawing between the head end of passage 2 and relief pipe 21 tail end, ill effect is caused to result of use.
During concrete enforcement, the attraction chamber of described attraction channel 2 and the inner chamber of relief pipe 21 can also be set to the tract connected as one, but arrange at the joining place of described relief pipe 21 and attraction channel 2 the head end suction port 22 that STH forms described attraction channel 2.This is a kind of embodiment of optimization, the attraction chamber of attraction channel 2 and the inner chamber of relief pipe 21 is made to form one tract in some sense, technique is more succinct, now, attraction channel 2 must arrange STH at attraction channel 2 and relief pipe 21 joining place from different being a bit similar but important to the gastral cavity relief pipe of LMA on the associating pipeline configuration of relief pipe 21.The STH herein arranged functionally is equivalent to the head end suction port 22 of attraction channel 2.During cleaning liquid secretions, intraoral liquid enters in the relief chamber 31 of relief passage 3 through vent 32, and then arranges STH via attraction channel 2 and relief pipe 21 joining place and enter attraction channel 2, is finally discharged under suction function.
Some vents 32 area of relief chamber 31 is all greater than the attraction chamber area of section of attraction channel 2.Enough large vent 32 area is arranged, and makes the effect of easing stress that relief chamber 31 can ensure attraction channel 2, avoids vent 32 to be adsorbed in oral mucosa and damage when extracting laryngeal mask.
In order to further illustrate described can suction sputum laryngeal mask, as shown in Figures 1 and 2, tangent plane A, tangent plane B and tangent plane C have been done respectively to the corrugated hose position of relief pipe 21 position of laryngeal mask, laryngeal mask cover body 11 position and respiration channel 1.Tangent plane A sectional view as shown in Figure 3, front side is the head end of laryngeal mask cover body 11, dorsal part is relief pipe 21, during use relief pipe 21 major part or all insert in esophageal aperture, the head end of laryngeal mask cover body 11 holds on front side of esophageal aperture, sealing esophageal aperture, when reducing or avoid ventilating, gastric juice backflows and enters respiration channel 1.Tangent plane B sectional view is as shown in Fig. 4 and Fig. 6, and front side is the central part of laryngeal mask cover body 11, and during use, the ventilation seal of laryngeal mask cover body 11 both sides covers respectively and puts at glottis left and right sides oral mucosa wall; Dorsal part is that relief chamber 31 and the bag attraction channel 2 be contained in relief chamber 31 attract chamber, and the rear wall of relief chamber 31 is provided with some vents 32.As shown in Figure 5 and 7, front side is the breather 12 of respiration channel 1 to tangent plane C sectional view, is fixed in oral cavity away from the oral cavity space of glottis or be positioned at outside oral cavity; Dorsal part is that relief chamber 31 and the bag attraction channel 2 be contained in relief chamber 31 attract chamber, and the rear wall of relief chamber 31 is provided with some vents 32.
Further, attraction channel 2 and relief passage 3 dorsal part of suction sputum laryngeal mask can form the radian curved surface mated with palate in oral cavity described, when described can in suction sputum laryngeal mask patient oral cavity time can better mate, safe is fixing, reaches better result of use.Described radian curved surface preferably arranges some projection blocks and intersects alternate rough radian curved surface with depression, like this, the present invention can in suction sputum laryngeal mask patient oral cavity time, form the gap dredged mutually in laryngeal mask dorsal part radian curved surface and patient oral cavity palate mucosa, be convenient to mouthful intracavity liquid and flow in relief chamber 31 through vent 31 by the gap of dredging mutually.
In a word: structure of the present invention is simple, cleared up by attraction channel boil on the nape opposite the mouth intracavity sputum and the gastric juice that backflows when anaesthetizing mechanical ventilation, avoid laryngeal mask to extract mistiming and inhale the risk caused, by relief passage, suction pressure is reduced pressure, avoid negative pressure to tender and lovely oral mucosa damage, this invention structure is simple, and cost is low, safe and reliable.

Claims (9)

1. can a suction sputum laryngeal mask, comprise to be communicated with breathing pipeline and patient's glottis mouth for ventilating respiration channel (1), for aspirating sputum or the attraction channel of the gastric juice that backflows (2) and the relief passage (3) for regulating attraction channel (2) negative pressure pressure; Described respiration channel (1) comprises the laryngeal mask cover body (11) of airtight connection successively, breather (12) and respirator interface (13), it is characterized in that: described laryngeal mask cover body (11) arranges the relief pipe (21) be used for gastral cavity decompression foremost; The head end suction port (22) of described attraction channel (2) is arranged on and closes on relief pipe (21) exit, exports be not communicated with relief pipe (21); The tail end of described attraction channel (2) attracts interface (23) to be arranged at outside oral cavity; The head end of described attraction channel (2) or attraction channel (2) is contained in the relief chamber (31) of relief passage (3); The relief chamber (31) of described relief passage (3) arranges some vents (32) at the offside chamber wall away from laryngeal mask wall cover body (11) bottom.
2. according to claim 1 can suction sputum laryngeal mask, it is characterized in that: described relief passage (3) inner chamber transverse section is that class is oblate, and described attraction channel (2) inner chamber is similar round, and described attraction channel (2) is arranged in relief passage (3) inner chamber.
3. according to claim 2 can suction sputum laryngeal mask, it is characterized in that: described attraction channel (2) is connected with the front and rear wall median line of relief passage (3), relief chamber (31) transverse section of described relief passage (3) is attracted passage (2) and is divided into two symmetrical class crescent relief chambers (31).
4. according to claim 2 can suction sputum laryngeal mask, it is characterized in that: the sidewall median line that described attraction channel (2) closes on laryngeal mask cover body (11) side with relief passage (3) is connected, relief chamber (31) transverse section of described relief passage (3) is attracted passage (2) and is reduced to a symmetrical meniscate relief chamber of class (31).
5. according to claim 2 can suction sputum laryngeal mask, it is characterized in that: described attraction channel (2) Bao Na is arranged in the relief chamber (31) of relief passage (3), be not connected with chamber, the inner side wall of relief passage (3).
6. according to claim 1 can suction sputum laryngeal mask, it is characterized in that: the transverse section of the attraction chamber of described attraction channel (2) and the inner chamber of relief pipe (21) comprises similar round, the attraction chamber of described attraction channel (2) is connected with the central axis of the inner chamber of relief pipe (21) is round and smooth, when stomach tube is inserted in attraction chamber along attraction channel (2), stomach tube can enter the inner chamber of relief pipe (21) smoothly.
7. according to claim 1 can suction sputum laryngeal mask, it is characterized in that: the attraction chamber of described attraction channel (2) and the inner chamber of relief pipe (21) connect as one tract, but the head end suction port (22) that STH forms described attraction channel (2) is set at the joining place of described relief pipe (21) and attraction channel (2).
8. according to claim 1 can suction sputum laryngeal mask, it is characterized in that: some vents (32) area of described relief chamber (31) is all greater than the attraction chamber area of section of attraction channel (2).
9. according to claim 2 can suction sputum laryngeal mask, it is characterized in that: described attraction channel (2) and relief passage (3) are set to the radian curved surface of the surface irregularity mated with palate in oral cavity with palate mucosa contact site in oral cavity.
CN201610043854.7A 2016-01-25 2016-01-25 Can suction sputum laryngeal mask Active CN105498061B (en)

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CN105999500A (en) * 2016-06-13 2016-10-12 南京医事达生物科技有限公司 Non-invasive back drainage laryngeal mask
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CN103316409A (en) * 2012-03-22 2013-09-25 田鸣 Novel multifunctional laryngeal mask
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WO2005046751A2 (en) * 2003-10-16 2005-05-26 De Oliveira Fortuna, Armando A combination artficial airway device and esophageal obturator
WO2010066001A1 (en) * 2008-12-10 2010-06-17 Thomas Ernest Havas Laryngeal hood
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CN205386271U (en) * 2016-01-25 2016-07-20 高宏 Can inhale phlegm laryngeal mask

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105999500A (en) * 2016-06-13 2016-10-12 南京医事达生物科技有限公司 Non-invasive back drainage laryngeal mask
CN113694331A (en) * 2021-09-03 2021-11-26 无锡圣诺亚科技有限公司 Air sac phlegm-sucking laryngeal mask

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