CN107737397A

CN107737397A - The compound laryngeal mask respiratory system of zero dead space

Info

Publication number: CN107737397A
Application number: CN201711224020.7A
Authority: CN
Inventors: 杨明; 曹常在; 王铭; 张媛媛; 张东惠
Original assignee: TIANJIN PLASTICS RESEARCH INSTITUTE
Current assignee: Yang Ming
Priority date: 2017-11-29
Filing date: 2017-11-29
Publication date: 2018-02-27

Abstract

The present invention relates to a kind of compound laryngeal mask respiratory system of zero dead space, including laryngeal mask component, L-shaped joint, breathing circuit filter, connection wye and Anesthesia machine connecting tube, laryngeal mask component includes cover body, conduit, inflating catheter and charge valve provided with drainage lumens and laryngeal mask snorkel in it, laryngeal mask snorkel is sequentially communicated L-shaped joint, connection wye and connection Anesthesia machine connecting tube, is characterized in：Laryngeal mask snorkel inner axes position is provided with expiration chamber, the outer side side of expiration chamber is semi-moon shaped suction muffler provided with section, the adjacent of expiration chamber and suction muffler is provided with gas sampling chamber, outside expiration chamber drainage lumens are additionally provided with the conduit of opposite side, the laryngeal mask snorkel other end connects multi-cavity L-shaped joint, multi-cavity L-shaped joint connects multi-cavity connection wye, multi-cavity connection wye connection Anesthesia machine connecting tube.Advantage is：Mechanical inefficiencies chamber can be eliminated, respiration inhibition caused by effectively alleviating anaesthetic in the general anesthesia for retaining autonomous respiration, improves breath function due, corrects patient's body acid-base imbalance, and then can significantly improve vital sign situation.

Description

The compound laryngeal mask respiratory system of zero dead space

Technical field

The invention belongs to clinical treatment equipment technology field, more particularly to a kind of compound laryngeal mask breathing system of zero dead space System.

Background technology

Clinically, dead space also known as breathes dead space, refers to the space for not participating in gas exchanges in respiratory, including life Manage dead space and mechanical inefficiencies chamber.Physiological dead space includes bronchus, tracheae, oral cavity, nasal cavity；Mechanical inefficiencies chamber leads to including laryngeal mask Tracheae, tracheal catheter, breathe breathing circuit filter, breathing circuit breeches joint.In each respiratory, exhalation process discharge Exhaust gas section rests on dead space, and breathing process can suck human body again, cannot get gas exchanges.

Clinically, breathing dead space problem can not be avoided, and physiological dead space is adapted to by patient, and anesthesia is not influenceed； It is urgently to be resolved hurrily as one in clinical anesthesia how harmful effect that mechanical inefficiencies chamber or reduction mechanical inefficiencies chamber bring is eliminated The problem of.At present, breathing pattern of the patient under generalized anesthetic state is divided into autonomous respiration and Mechanical course breathing two ways. Autonomous respiration refers to patient and breathed by itself strength, because the respiration inhibition of arcotic acts on the presence with mechanical inefficiencies chamber, It can raise gas concentration lwevel in blood samples of patients, show as blood pressure rise, increased heart rate, respiratory rate is accelerated；Mechanical course Breathing refers to patient's autonomous respiration pause, carrys out assisted respiartion by lung ventilator, due to the presence of mechanical inefficiencies chamber, lung ventilator need to provide more Big throughput and airway pressure, or respiratory rate maintains effectively to breathe faster, there is the wind for causing respiratory tract and injury of lungs Danger.The capacity of mechanical inefficiencies chamber is from tens milliliters to milliliters up to a hundred.Breathing often only has tens every time in infant's anesthesia Milliliter gas, due to the presence of mechanical inefficiencies chamber, make suck in gas that to have close to half oneself discharged but without absorption every time The waste gas of filtering；Although will not anoxic, carbon dioxide in blood can be made to raise and bring adverse reaction.Eliminate mechanical inefficiencies Chamber, respiration inhibition caused by can alleviating anaesthetic in the general anesthesia for retaining autonomous respiration, improve respiratory function, correct Body acid-base imbalance, and then improve vital sign situation；Throughput can be reduced in the general anesthesia of control breathing, reduction is exhaled Pressure in road is inhaled, slows down respiratory rate, reduces respiratory system damage.Patient age body weight is smaller, and health is poorer, during operation Between it is longer, eliminate mechanical inefficiencies chamber clinical meaning it is bigger.

The content of the invention

The present invention provides one kind for technical problem present in solution known technology can eliminate mechanical inefficiencies chamber, alleviation fiber crops Liquor-saturated drug induced respiration inhibition, improve respiratory function, correct patient's body acid-base imbalance, and then improving vital sign situation The compound laryngeal mask respiratory system of zero dead space.

The present invention is adopted the technical scheme that to solve technical problem present in known technology：

The compound laryngeal mask respiratory system of zero dead space, including laryngeal mask component, L-shaped joint, detachable connection wye and Anesthesia machine Connecting tube, the laryngeal mask component include cover body, the conduit provided with drainage lumens and the laryngeal mask snorkel connected with cover body in it, with covering The inflating catheter of body connection and the charge valve connected with inflating catheter, draining hole, its feature are provided with patient's insertion end of cover body It is：Shaft core position in the laryngeal mask snorkel is provided with expiration chamber, and it is semi-moon shaped to be provided with section by side outside expiration chamber Suction muffler, the adjacent position of the expiration chamber and suction muffler is provided with gas sampling chamber, outside expiration chamber in the conduit of opposite side Be additionally provided with drainage lumens, the draining hole at drainage lumens one end connection cover body patient's insertion end, the laryngeal mask snorkel it is another End is communicated with the L-shaped joint of multi-cavity, and the L-shaped joint connects the connection wye of detachable multi-cavity, the connection wye connection fiber crops Liquor-saturated machine connecting tube.

The present invention can also adopt the following technical scheme that：

Shaft core position in the laryngeal mask snorkel is provided with section as circular expiration chamber, is provided with outside expiration chamber by side Section is semi-moon shaped suction muffler, and the adjacent position of the expiration chamber and suction muffler is provided with gas sampling chamber position, in expiration chamber Drainage lumens are additionally provided with the conduit of outer opposite side, described drainage lumens one end connects the draining hole at cover body patient's insertion end, described One end connection of gas sampling chamber is arranged on the gas sampling mouth on cover body, the L-shaped of the other end connection multi-cavity of gas sampling chamber Joint；The other end of the laryngeal mask snorkel is connected with the L-shaped of three chambers corresponding with expiration chamber, suction muffler and gas sampling chamber The connection wye of joint and three chambers, the connection wye outside are provided with the second gas sampling joint being connected with gas sampling chamber, The connection wye connects Anesthesia machine connecting tube；

The connection wye includes the second housing, on the second housing provided with patient interface end, Anesthesia machine output end and anesthesia Machine input, the second shell body is interior to be equipped with the second filter core, is connected with the outside of connection wye and second gas sampling cavity connects Logical second gas sampling joint, the 3rd filter core, the second gas sampling cavity and gas sampling are housed in gas sampling intracavitary Chamber connects.

One end that the L-shaped joint is connected with laryngeal mask snorkel is provided with the circular expiration chamber corresponding to laryngeal mask snorkel, half Month shape suction muffler and gas sampling chamber, the expiration chamber of one end that the L-shaped joint is connected with connection wye and suction muffler section are It is semicircle.

Shaft core position in the laryngeal mask snorkel of close one section of the cover body is provided with expiration chamber, is set outside expiration chamber by side It is semi-moon shaped suction muffler to have section, and the adjacent position of the expiration chamber and suction muffler is provided with gas sampling chamber position, exhaled Drainage lumens are additionally provided with the conduit of the outer opposite side of chamber, described drainage lumens one end connects the draining hole at cover body patient's insertion end, institute The one end for stating gas sampling chamber connects the gas sampling mouth being arranged on cover body, and the section of the expiration chamber is circular, the suction The section of air cavity is semilune, and one end connection of the gas sampling chamber is arranged on the gas sampling mouth on cover body, gas sampling The chamber other end connects with the external gas sampler being arranged on outside laryngeal mask snorkel, and the external gas sampler passes through joint Connect external gas sampling joint, the laryngeal mask snorkel is double cavity structure close to one section of L-shaped joint, respectively suction muffler and Expiration chamber, the laryngeal mask snorkel connect L-shaped joint by joint, and the L-shaped joint connects connection wye, and the connection wye connects Anesthesia machine connecting tube is connect, L-shaped joint and Y the shape joint is double cavity structure；

One end of the L-shaped joint is Anesthesia machine interface end, and the other end is patient end, is provided with the patient end and laryngeal mask Two chambers corresponding to breather pipe suction muffler and expiration chamber, respectively the expiration chamber of circular cross-section and the suction muffler of half-moon cross-section.

The external gas sampling joint includes the 3rd housing, input end connector, output end connector and the 4th filter core, the For three housings built with the 4th filter core, the 3rd shell one end is connected with input end connector, and the 3rd housing other end is affixed There is output end connector.

The compound laryngeal mask respiratory system of zero dead space, including laryngeal mask component, breathing circuit filter, L-shaped joint, detachable Y shape Joint and Anesthesia machine connecting tube, the laryngeal mask component include cover body, drainage lumens and the laryngeal mask airway connected with cover body are provided with it The conduit of pipe, the inflating catheter connected with cover body and the charge valve connected with inflating catheter, it is provided with patient's insertion end of cover body Draining hole, it is characterised in that：Shaft core position in the laryngeal mask snorkel is provided with section as circular expiration chamber, outside expiration chamber Side side is semi-moon shaped suction muffler provided with section, and the adjacent position of the expiration chamber and suction muffler is provided with gas sampling chamber, Drainage lumens are additionally provided with the conduit of opposite side outside expiration chamber, described drainage lumens one end connects the drainage at cover body patient's insertion end Mouthful, the other end of the laryngeal mask snorkel is communicated with the breathing circuit filter of multi-cavity, and the L-shaped of the breathing circuit filter connection multi-cavity connects Head, the detachable connection wye of the L-shaped joint connection multi-cavity, the connection wye connect Anesthesia machine connecting tube.

Shaft core position in the laryngeal mask snorkel is provided with section as circular expiration chamber, is provided with outside expiration chamber by side Section is semi-moon shaped suction muffler, and the adjacent position of the expiration chamber and suction muffler is provided with gas sampling chamber, outside expiration chamber Drainage lumens are additionally provided with the conduit of opposite side, described drainage lumens one end connects the draining hole at cover body patient's insertion end, the gas One end connection of sampler body chamber is arranged on the gas sampling mouth on cover body, is provided with and laryngeal mask snorkel pair in the breathing circuit filter Three chambers answered, are additionally provided with the gas sampling joint connected with the gas sampling chamber of laryngeal mask snorkel on the outside of breathing circuit filter； The laryngeal mask snorkel connects direct breathing circuit filter, the L-shaped joint of the breathing circuit filter connection two-chamber, the L-shaped joint The connection wye of two-chamber is connected, the connection wye connects Anesthesia machine connecting tube；

One end of the L-shaped joint is the interface end being connected with connection wye, and the other end is the trouble connected with breathing circuit filter Person end, it is provided with L-shaped joint and breathing circuit filter machine end semicircle exhaled gas filter chamber and suction gas filtration chamber phase Corresponding exhaled gas filter chamber and suction gas filtration chamber.

The breathing circuit filter includes the first housing, is provided with machine end in the first shell one end, the first housing other end is set There is patient end, the patient end is provided with corresponding with laryngeal mask snorkel circle expiration chamber, semilune suction muffler and gas sampling chamber Exhaled gas filter chamber, suction gas filtration chamber and first gas sampling cavity, it is symmetrical that the machine end is provided with section semicircular in shape The exhaled gas filter chamber and suction gas filtration chamber, the first gas sampling cavity of setting connect the gas in laryngeal mask snorkel Sampling cavity, suction gas filtration chamber, exhaled gas filter chamber and the gas sampling intracavitary are equipped with the first filter core；Described first The affixed first gas sampling joint of hull outside, the first gas sampling joint connect with first gas sampling cavity；The machine The semicircle exhaled gas filter chamber and the L-shaped fittings of suction gas filtration chamber and two-chamber at device end.

Shaft core position in the laryngeal mask snorkel of close one section of the cover body is provided with section as circular expiration chamber, is exhaling The outer side side of chamber is semi-moon shaped suction muffler provided with section, and the adjacent position of the expiration chamber and suction muffler is provided with gas sampling Chamber, is additionally provided with drainage lumens outside expiration chamber in the conduit of opposite side, described drainage lumens one end is connected at cover body patient's insertion end Draining hole, one end connection of the gas sampling chamber are arranged on the gas sampling mouth on cover body, and the gas sampling chamber other end is with setting The external gas sampler connection outside laryngeal mask snorkel is put, the external gas sampler connects external gas by joint Sampling joint；The laryngeal mask snorkel is double cavity structure, respectively suction muffler and expiration chamber close to one section of breathing circuit filter, institute State laryngeal mask snorkel and be directly connected to breathing circuit filter, the breathing circuit filter connects L-shaped joint, and the L-shaped joint connects Y shape Joint, the connection wye connect Anesthesia machine connecting tube, and the breathing circuit filter, L-shaped joint and connection wye are two-chamber knot Structure.

The breathing circuit filter includes the first housing, is provided with machine end in the first shell one end, the first housing other end is set There is patient end, the patient end filters provided with exhaled gas corresponding with laryngeal mask snorkel circle expiration chamber and semilune suction muffler Chamber, suction gas filtration chamber, the machine end are provided with the symmetrically arranged exhaled gas filter chamber of section semicircular in shape and suction gas Body filter chamber, the first filter core, the breathing circuit filter machine are equipped with the suction gas filtration chamber, exhaled gas filter chamber The semicircle exhaled gas filter chamber and the L-shaped joint of suction gas filtration chamber and two-chamber at end.

The present invention has the advantages and positive effects of：Because the present invention uses above-mentioned technical proposal, i.e., by by laryngeal mask Supraglottic breather pipe design is two-chamber or segment section three-cavity structure, and L-shaped joint one end is designed as three chambers, and the other end is designed as double Cavity configuration, consequently facilitating original connection wye is designed as detachable two-chamber by connection corresponding with three lumen laryngeal masks, breathing circuit Structure is connected with L-shaped joint.So, from patient's glottis, by the two-chamber of laryngeal mask or three chamber breather pipes individually and Anesthesia machine Connecting tube be connected, in the absence of shared tube chamber；Due to, with the presence of unidirectional valve, making this system form two inside Anesthesia machine Independent air-breathing and exhalation path, and form loop in each respiratory.When the patient inhales, inspiratory valve, which opens, exhales Flap valve is closed, and the live gas of volatile anesthetic mixture of oxygen enters patient body from air suction way.During patient expiration, air-breathing Flap valve is closed expiratory valve and opened, and is mixed with carbon dioxide, and the exhaled gas of volatile anesthetic and partial oxidation is logical from exhaling The exhaust gas absorption device that road enters in Anesthesia machine, fully absorb and be changed into live gas next with oxygen mix after carbon dioxide It is inhaled by a patient in the individual respiratory cycle.So, the mechanical inefficiencies chamber breathed in dead space is completely eliminated.Eliminate mechanical inefficiencies Chamber, respiration inhibition caused by can alleviating anaesthetic in the general anesthesia for retaining autonomous respiration, improve respiratory function, correct Body acid-base imbalance, and then improve vital sign situation；Throughput can be reduced in the general anesthesia of control breathing, reduction is exhaled Pressure in road is inhaled, slows down respiratory rate, reduces respiratory system damage.Patient age body weight is smaller, and health is poorer, during operation Between it is longer, eliminate mechanical inefficiencies chamber clinical meaning it is bigger.

Brief description of the drawings

Fig. 1 is the structural representation of the embodiment of the present invention 1；

Fig. 2 is Fig. 1 right view；

Fig. 3 is laryngeal mask component structure diagram in Fig. 1；

Fig. 3 a are Fig. 3 A-A sectional views；

Fig. 3 b are Fig. 3 A direction views；

Fig. 3 c are Fig. 3 B direction views；

Fig. 4 is Fig. 3 top view；

Fig. 5 is looking up for Fig. 3；

Fig. 6 is the structural representation of L-shaped joint in the embodiment of the present invention 1；

Fig. 6 a are Fig. 6 left views；

Fig. 6 b are Fig. 6 right views；

Fig. 6 c are Fig. 6 upward views；

Fig. 7 is the structural representation of connection wye in the embodiment of the present invention 1；

Fig. 7 a are Fig. 7 left views；

Fig. 7 b are Fig. 7 top views；

Fig. 8 is the structural representation of the embodiment of the present invention 2；

Fig. 9 is Fig. 8 right view；

Figure 10 is the laryngeal mask component structure diagram of the embodiment of the present invention 2；

Figure 10 a are Figure 10 C direction views；

Figure 10 b are Figure 10 A portions enlarged drawings；

Figure 11 is Figure 10 top view；

Figure 12 is Figure 10 upward view；

Figure 13 is the L-type joint design schematic diagram of the embodiment of the present invention 2；

Figure 13 a are Figure 13 left views；

Figure 13 b are Figure 13 right views；

Figure 13 c are Figure 13 upward views；

Figure 14 is the external gas sampling joint structural representation of the embodiment of the present invention 2；

Figure 15 is the connection wye structural representation of the embodiment of the present invention 2；

Figure 15 a are Figure 15 left views；

Figure 15 b are Figure 15 top views；

Figure 16 is the structural representation of the embodiment of the present invention 3；

Figure 17 is Figure 16 right view；

Figure 18 is the structural representation of the breathing circuit filter of the embodiment of the present invention 3；

Figure 18 a are Figure 18 right views；

Figure 18 b are Figure 18 top views；

Figure 18 c are Figure 18 upward views；

Figure 18 d are Figure 18 B-B sectional views；

Figure 18 e are Figure 18 rearviews；

Figure 19 is the structural representation of L-shaped joint in inventive embodiments 3；

Figure 19 a are Figure 19 right views；

Figure 19 b are Figure 19 upward views；

Figure 20 is the structural representation of the embodiment of the present invention 4；

Figure 21 is Figure 20 right view；

Figure 22 is the structural representation of breathing circuit filter in the embodiment of the present invention 4；

Figure 22 a are Figure 22 side views；

Figure 22 b are Figure 22 top views

Figure 22 c are Figure 22 upward views；

Figure 22 d are Figure 22 C-C sectional views；

Figure 23 is the structural representation of the embodiment of the present invention 5；

Figure 24 is Figure 23 right view；

Figure 25 is the structural representation of breathing circuit filter in the embodiment of the present invention 5；

Figure 25 a are Figure 25 side views；

Figure 25 b are Figure 25 B-B sectional views；

Figure 25 c are Figure 25 C direction views；

Figure 25 d are Figure 25 D direction views；

Figure 26 is the structural representation of the embodiment of the present invention 6；

Figure 27 is Figure 25 right view；

Figure 28 is the structural representation of breathing circuit filter in the embodiment of the present invention 6；

Figure 28 a are Figure 28 side views；

Figure 28 b are Figure 28 C-C sectional views；

Figure 28 c are Figure 28 E direction views；

Figure 28 d are Figure 28 F direction views；

In figure：1st, laryngeal mask component；1-1, cover body；1-1A, draining hole；1-2, laryngeal mask snorkel；1-2A, expiration chamber；1- 2B, suction muffler；1-2C, gas sampling chamber；1-2D, drainage lumens；1-3, inflating catheter；1-4, charge valve；

2nd, breathing circuit filter；2-1, the first housing；2-2, machine end；2-3, patient end；2-4, first gas sampling joint； 2-5, first gas sampling cavity；2-6, suction gas filtration chamber；2-7, exhaled gas filter chamber；2-8, the first filter core；

3rd, L-shaped joint；3-1, Anesthesia machine interface end；3-2, patient end；

4th, connection wye；4-1, patient interface end；4-2, Anesthesia machine output end；4-3, anesthesia machine input terminal；4-4, the second filter Core；4-5, second gas sampling cavity；4-6, the 3rd filter core；4-7, second gas sampling joint；4-8, the second housing；

5th, external gas sampling joint；5-1, the 3rd housing；5-2, input end connector；5-3, output end connector；5-4, Four filter cores；

6th, external gas sampler；7th, Anesthesia machine connecting tube.

Embodiment

In order to further understand the content, features and effects of the present invention, hereby enumerating following examples, and coordinate accompanying drawing Describe in detail as follows：

Embodiment 1,

Refer to Fig. 1-Fig. 7 b, the compound laryngeal mask respiratory system of zero dead space, including it is laryngeal mask component 1, L-shaped joint 3, detachable Formula connection wye 4 and Anesthesia machine connecting tube 7, the laryngeal mask component include cover body 1-1, are provided with drainage lumens 1-2D and and cover body in it The laryngeal mask snorkel 1-2 of connection conduit, the inflating catheter 1-3 connected with cover body and the charge valve 1-4 connected with inflating catheter, Draining hole is provided with patient's insertion end of cover body.Shaft core position in the laryngeal mask snorkel is provided with expiration chamber 1-2A, is exhaling The outer side side of chamber is semi-moon shaped suction muffler 1-2B provided with section, and the adjacent position of the expiration chamber and suction muffler is provided with gas Sampling cavity 1-2C, is additionally provided with drainage lumens 1-2D outside expiration chamber in the conduit of opposite side, drainage lumens one end connection cover body is suffered from Draining hole 1-1A at person's insertion end.The other end of the laryngeal mask snorkel is communicated with the L-shaped joint 3 of multi-cavity, the L-shaped joint Connect the connection wye 4 of detachable multi-cavity, the connection wye connection Anesthesia machine connecting tube 7.

Shaft core position in the laryngeal mask snorkel is provided with section as circular expiration chamber 1-2A, outside expiration chamber by side It is semi-moon shaped suction muffler 1-2B provided with section, the adjacent position of the expiration chamber and suction muffler is provided with gas sampling chamber position 1- 2C, is additionally provided with drainage lumens 1-2D outside expiration chamber in the conduit of opposite side, described drainage lumens one end connects cover body patient's insertion end The draining hole 1-1A at place.One end connection of the gas sampling chamber is arranged on the gas sampling mouth on cover body, gas sampling chamber The other end connects the L-shaped joint of multi-cavity.The other end of the laryngeal mask snorkel is connected with and expiration chamber, suction muffler and gas sampling The L-shaped joint of three corresponding chambers of chamber and the connection wye of three chambers, the connection wye outside is provided with to be connected with gas sampling chamber Second gas sampling joint 4-7, the connection wye connects Anesthesia machine connecting tube.

In the present embodiment, one end of the L-shaped joint 3 is Anesthesia machine interface end 3-1, and the other end is patient end 3-2, described Patient end is connected with laryngeal mask snorkel, and the patient end is provided with the circular expiration chamber 1-2A corresponding to laryngeal mask snorkel, semilune Suction muffler 1-2B and gas sampling chamber 1-2C, the Anesthesia machine interface end 3-1 are connected with connection wye, the Anesthesia machine interface end Expiration chamber and suction muffler section be semicircle.

In the present embodiment, the connection wye includes the second housing 4-8, on the second housing provided with patient interface end 4-1, Anesthesia machine output end 4-2 and anesthesia machine input terminal 4-3, the second shell body is interior to be equipped with the second filter core 4-4, in the outer of connection wye The second gas sampling joint 4-7 connected with second gas sampling cavity 4-5 is connected with side, the 3rd is equipped with gas sampling intracavitary Filter core 4-6, the second gas sampling cavity 4-5 connect with gas sampling chamber 1-2C.

The operation principle of the embodiment of the present invention 1 is：

After the completion of entire patient's anesthesia induction, laryngeal mask is inserted, is sequentially connected L-shaped joint and the connection wye with filter core, Y Shape joint is by the connection Anesthesia machine of Anesthesia machine connecting tube 7, on the gas sampler and connection wye that Anesthesia machine or patient monitor are connected Gas sampling joint connection.From on patient's glottis, expiration chamber 1-2A, suction muffler 1-2B and the gas sampling of laryngeal mask snorkel Chamber 1-2C is connected by the L-shaped joint, three chamber connection wyes and Anesthesia machine connecting tube 7 of three chambers with Anesthesia machine, in the absence of share pipe Chamber；Due to, with the presence of unidirectional valve, making this system form two independent air-breathings and exhalation path inside Anesthesia machine, and every Loop is formed in secondary respiratory.Gas sampling is by the gas sampling chamber 1-2C of laryngeal mask snorkel, L-shaped joint and with filter The gas sampling joint 4-7 of the connection wye of core is realized.When needing to implement drainage procedure to patient, drainage tube can be inserted Supravasal drainage lumens can implement drainage to patient.

During patient breaths, inspiratory valve opens expiratory valve and closed, the live gas of volatile anesthetic mixture of oxygen from Air suction way enters patient body.During patient expiration, inspiratory valve is closed expiratory valve and opened, and is mixed with carbon dioxide, volatilizees Property arcotic and partial oxidation exhaled gas from exhalation path enter Anesthesia machine in exhaust gas absorption device, fully absorb two It is changed into live gas with oxygen mix after carbonoxide to be inhaled by a patient in next respiratory cycle.So, breathe in dead space Mechanical inefficiencies chamber be completely eliminated.

Embodiment 2,

Refer to Fig. 8-Figure 15 b, the compound laryngeal mask respiratory system of zero dead space, including it is laryngeal mask component 1, L-shaped joint 3, removable Unload formula connection wye 4 and Anesthesia machine connecting tube 7, the laryngeal mask component includes cover body 1-1, drainage lumens 1-2D is provided with it and with cover The laryngeal mask snorkel 1-2 of body connection conduit, the inflating catheter 1-3 connected with cover body and the charge valve 1- connected with inflating catheter 4, it is provided with draining hole in patient's insertion end of cover body.Shaft core position in the laryngeal mask snorkel is provided with expiration chamber 1-2A, is exhaling The outer side side of air cavity is semi-moon shaped suction muffler 1-2B provided with section, and the adjacent position of the expiration chamber and suction muffler is provided with gas Sampler body chamber 1-2C, is additionally provided with drainage lumens 1-2D outside expiration chamber in the conduit of opposite side, described drainage lumens one end connects cover body Draining hole 1-1A at patient's insertion end.The other end of the laryngeal mask snorkel is communicated with the L-shaped joint 3 of two-chamber, and the L-shaped connects Head connects the connection wye 4 of detachable two-chamber, the connection wye connection Anesthesia machine connecting tube 7.

In the present embodiment, the shaft core position in the laryngeal mask snorkel of close one section of the cover body is provided with expiration chamber 1-2A, The outer side side of expiration chamber is semi-moon shaped suction muffler 1-2B provided with section, and the adjacent position of the expiration chamber and suction muffler is provided with Gas sampling chamber 1-2C, drainage lumens 1-2D, drainage lumens one end connection cover are additionally provided with the conduit of opposite side outside expiration chamber Draining hole 1-1A at body patient's insertion end.The section of the expiration chamber is circle, and the section of the suction muffler is semilune.Institute The one end for stating gas sampling chamber connects the gas sampling mouth being arranged on cover body, and the gas sampling chamber other end leads to being arranged on laryngeal mask External gas sampler 6 outside tracheae connects, and the external gas sampler connects external gas sampling joint by joint 5.The laryngeal mask snorkel 1-2 is double cavity structure, respectively suction muffler 1-2B and expiration chamber 1-2A close to one section of L-shaped joint, The laryngeal mask snorkel connects L-shaped joint by joint, and the L-shaped joint connects connection wye, the connection wye connection anesthesia Machine connecting tube, the L-shaped joint and connection wye are double cavity structure.

In the present embodiment, one end of the L-shaped joint 3 is Anesthesia machine interface end 3-1, and the other end is patient end 3-2, described Two chamber corresponding with laryngeal mask snorkel suction muffler 1-2B and expiration chamber 1-2A, the respectively expiration of circular cross-section are provided with patient end Chamber 1-2A and half-moon cross-section suction muffler 1-2B.

In the present embodiment, one end of the connection wye 4 is patient interface end 4-1, and the other end is respectively Anesthesia machine output end 4-2 and anesthesia machine input terminal 4-3, the second filter core 4-4 is provided with Anesthesia machine output end 4-2 and anesthesia machine input terminal 4-3.

In the present embodiment, the external gas sampling joint 5 includes the 3rd housing 5-1, input end connector 5-2, output end Joint 5-3 and the 4th filter core 5-4, in the 3rd housing built with the 4th filter core, the 3rd shell one end is connected with input termination Head, the 3rd housing other end are connected with output end connector.

The operation principle of the embodiment of the present invention 2 is：

After the completion of entire patient's anesthesia induction, laryngeal mask is inserted, is sequentially connected L-shaped joint and the connection wye with filter core, Y Shape joint connects Anesthesia machine by Anesthesia machine connecting tube 7, the gas sampler that Anesthesia machine or patient monitor are connected and laryngeal mask band mistake The external gas sampler connection of filter.From on patient's glottis, expiration chamber 1-2A, the suction muffler 1-2B of laryngeal mask snorkel pass through L-shaped joint, connection wye and Anesthesia machine connecting tube 7 are connected with Anesthesia machine, in the absence of shared tube chamber；Due to having inside Anesthesia machine Unidirectional valve is present, and this system is formed two independent air-breathings and exhalation path, and form ring in each respiratory Road.Gas sampling chamber 1-2C, external gas sampler 6 and the external gas sampling joint 5 that gas sampling passes through laryngeal mask snorkel To realize.When needing to implement drainage procedure to patient, drainage tube can be inserted to supravasal drainage lumens to be implemented to patient Drainage.

Embodiment 3,

Refer to Figure 16-Figure 19 b, the compound laryngeal mask respiratory system of zero dead space, including laryngeal mask component 1, breathing circuit filter 2, L Shape joint 3, detachable connection wye 4 and Anesthesia machine connecting tube 7, the laryngeal mask component includes cover body 1-1, is provided with it and cover The laryngeal mask snorkel 1-2 of body connection conduit, the inflating catheter 1-3 connected with cover body and the charge valve 1- connected with inflating catheter 4.Shaft core position in the laryngeal mask snorkel is provided with section as circular expiration chamber 1-2A, is provided with and cuts by side outside expiration chamber Face is semi-moon shaped suction muffler 1-2B, and the adjacent position of the expiration chamber and suction muffler is provided with gas sampling chamber 1-2C, exhaled Drainage lumens 1-2D is additionally provided with the conduit of the outer opposite side of air cavity, described drainage lumens one end connects the drainage at cover body patient's insertion end Mouth 1-1A.The other end of the laryngeal mask snorkel is directly communicated with the breathing circuit filter 2 of multi-cavity, and the breathing circuit filter connection is more The L-shaped joint of chamber, the detachable connection wye of the L-shaped joint connection multi-cavity, the connection wye connect Anesthesia machine connecting tube.

In the present embodiment, the shaft core position in the laryngeal mask snorkel is provided with section as circular expiration chamber 1-2A, is exhaling The outer side side of air cavity is semi-moon shaped suction muffler 1-2B provided with section, and the adjacent position of the expiration chamber and suction muffler is provided with gas Sampler body chamber 1-2C, one end connection of the gas sampling chamber are arranged on the gas sampling mouth on cover body.The side outside expiration chamber Side is semi-moon shaped suction muffler 1-2B provided with section, and the adjacent position of the expiration chamber and suction muffler is provided with gas sampling chamber 1- 2C.Drainage lumens 1-2D is additionally provided with the conduit of opposite side outside expiration chamber, described drainage lumens one end connects cover body patient's insertion end The draining hole 1-1A at place.Three chambers corresponding with laryngeal mask snorkel are provided with the breathing circuit filter, on the outside of breathing circuit filter It is additionally provided with the gas sampling joint 2-4 connected with the gas sampling chamber of laryngeal mask snorkel；The laryngeal mask snorkel is directly connected to exhale It is drawn through filter 2, the L-shaped joint 3 of the breathing circuit filter connection two-chamber, the connection wye 4 of the L shapes joint connection two-chamber, institute State connection wye connection Anesthesia machine connecting tube.

In the present embodiment, the breathing circuit filter includes the first housing 2-1, and machine end 2-2 is provided with the first shell one end, The first housing other end is provided with patient end 2-3, and the patient end is provided with and laryngeal mask snorkel circle expiration chamber, semilune suction muffler With gas sampling chamber corresponding to exhaled gas filter chamber 2-7, suction gas filtration chamber 2-6 and first gas sampling cavity 2-5, exhaling The machine end for being drawn through filter is provided with the symmetrically arranged exhaled gas filter chamber of section semicircular in shape and suction gas filtration chamber, described Gas sampling chamber 1-2C in first gas sampling cavity connection laryngeal mask snorkel, the suction gas filtration chamber, exhaled gas mistake Filter chamber and gas sampling intracavitary are equipped with the first filter core 2-8.The affixed first gas sampling joint 2-4 of first hull outside, The first gas sampling joint connects with first gas sampling cavity 2-5；The semicircle exhaled gas filter chamber of the machine end With suction gas filtration chamber and the L-shaped fittings of two-chamber.

In the present embodiment, one end of the L-shaped joint 3 is the interface end 3-1 being connected with connection wye, and the other end is with exhaling The patient end 3-2 of filter connection is drawn through, is provided with L-shaped joint 3 and is filtered with breathing circuit filter machine end semicircle exhaled gas The corresponding exhaled gas filter chamber and suction gas filtration chamber of chamber and suction gas filtration chamber.

In the present embodiment, one end of the connection wye 4 is patient interface end 4-1, and the other end is respectively Anesthesia machine output end 4-2 and anesthesia machine input terminal 4-3.

The operation principle of the embodiment of the present invention 3 is：

After the completion of entire patient's anesthesia induction, laryngeal mask is inserted, is sequentially connected breathing circuit filter 2, L-shaped joint and connection wye, Connection wye connects Anesthesia machine, the gas sampler and breath that Anesthesia machine or patient monitor are connected by Anesthesia machine connecting tube 7 Gas sampler connection on device.From on patient's glottis, expiration chamber 1-2A, the suction muffler 1-2B of laryngeal mask snorkel pass through breathing Filter 2, L-shaped joint, connection wye and Anesthesia machine connecting tube 7 are connected with Anesthesia machine, in the absence of shared tube chamber；Due to anesthesia With the presence of unidirectional valve inside machine, this system is set to form two independent air-breathings and exhalation path, and in each respiratory Middle formation loop.Gas sampling passes through the gas sampling chamber 1-2C in laryngeal mask snorkel, the breathing provided with the first filter core 2-8 in it Filter 2 and the gas sampling joint 2-4 that is arranged on outside breathing circuit filter housing are realized.When need to patient implement drain During operation, drainage tube can be inserted to supravasal drainage lumens to implement drainage to patient.

Embodiment 4,

Refer to Figure 20-Figure 22 d, the compound laryngeal mask respiratory system of zero dead space, including laryngeal mask component 1, breathing circuit filter 2, L Shape joint 3, detachable connection wye 4 and Anesthesia machine connecting tube 7, the laryngeal mask component includes cover body 1-1, its interior is provided with drains Chamber 1-2D and the laryngeal mask snorkel 1-2 connected with cover body conduit, the inflating catheter 1-3 connected with cover body and with inflating catheter connect Logical charge valve 1-4.Shaft core position in the laryngeal mask snorkel is provided with section as circular expiration chamber 1-2A, outside expiration chamber Side side is semi-moon shaped suction muffler 1-2B provided with section, and the adjacent position of the expiration chamber and suction muffler is provided with gas sampling Chamber 1-2C.Drainage lumens 1-2D is additionally provided with the conduit of opposite side outside expiration chamber, drainage lumens one end connection cover body patient inserts Enter the draining hole 1-1A at end.The L-shaped joint of the breathing circuit filter connection two-chamber, the L-shaped joint connection two-chamber are detachable The connection wye of formula, the connection wye connect Anesthesia machine connecting tube.

In the present embodiment, the shaft core position in the laryngeal mask snorkel is provided with section as circular expiration chamber 1-2A, is exhaling The outer side side of air cavity is semi-moon shaped suction muffler 1-2B provided with section, and the adjacent position of the expiration chamber and suction muffler is provided with gas Sampler body chamber 1-2C, one end connection of the gas sampling chamber are arranged on the gas sampling mouth on cover body.It is another outside expiration chamber Drainage lumens 1-2D is additionally provided with the conduit of side, described drainage lumens one end connects the draining hole 1-1A at cover body patient's insertion end.Institute State in breathing circuit filter and be provided with two chambers corresponding with laryngeal mask snorkel.The laryngeal mask snorkel connects direct breathing circuit filter, The L-shaped joint of the breathing circuit filter connection two-chamber, the connection wye of the L-shaped joint connection two-chamber, the connection wye connection Anesthesia machine connecting tube.

In the present embodiment, the breathing circuit filter includes the first housing 2-1, and machine end 2-2 is provided with the first shell one end, The first housing other end is provided with patient end 2-3, and the patient end is provided with and laryngeal mask snorkel circle expiration chamber, semilune suction muffler Corresponding exhaled gas filter chamber 2-7, suction gas filtration chamber 2-6.The machine end of the breathing circuit filter is in provided with section The exhaled gas filter chamber and suction gas filtration chamber that dome symmetric is set, in the suction gas filtration chamber, exhaled gas The first filter core 2-8 is equipped with filter chamber.The semicircle exhaled gas filter chamber of the machine end and suction gas filtration chamber with The L-shaped fittings of two-chamber.

In the present embodiment, the structure of the L-shaped joint 3 and connection wye 4 and the L-shaped joint and connection wye knot of embodiment 3 Structure is identical.

The operation principle of the embodiment of the present invention 4 is：

After the completion of entire patient's anesthesia induction, laryngeal mask is inserted, is sequentially connected breathing circuit filter 2, L-shaped joint and connection wye, Connection wye connects Anesthesia machine by Anesthesia machine connecting tube 7, the gas sampler that Anesthesia machine or patient monitor are connected and laryngeal mask band mistake The external gas sampler connection of filter.From on patient's glottis, expiration chamber 1-2A, the suction muffler 1-2B of laryngeal mask snorkel pass through Breathing circuit filter 2, L-shaped joint, connection wye and Anesthesia machine connecting tube 7 are connected with Anesthesia machine, in the absence of shared tube chamber；Due to With the presence of unidirectional valve inside Anesthesia machine, this system is set to form two independent air-breathings and exhalation path, and breathing every time During form loop.Gas sampling is provided with the first filter core 2-8's by the gas sampling chamber 1-2C in laryngeal mask snorkel, in it Breathing circuit filter 2, external gas sampler 6 and external gas sampling joint 5 are realized.Grasped when needing to drain patient's implementation When making, drainage tube can be inserted to supravasal drainage lumens to implement drainage to patient.

Embodiment 5,

Refer to Figure 23-Figure 25 d, in the present embodiment, the shaft core position in the laryngeal mask snorkel is provided with section as circle Expiration chamber 1-2A, by side provided with section be semi-moon shaped suction muffler 1-2B outside expiration chamber, the expiration chamber and suction muffler Adjacent position be provided with gas sampling chamber 1-2C, one end connection of the gas sampling chamber is arranged on the gas sampling on cover body Mouthful.Drainage lumens 1-2D is additionally provided with the conduit of opposite side outside expiration chamber, described drainage lumens one end connects cover body patient's insertion end The draining hole 1-1A at place.Three chambers corresponding with L-shaped joint are provided with the breathing circuit filter, in the outside of breathing circuit filter 2 also The gas sampling joint 2-4 connected provided with the gas sampling chamber 1-2C with L-shaped joint.The laryngeal mask snorkel connects the L of three chambers Shape joint 3, circular expiration chamber, the semilune suction muffler that three chambers in the L-shaped joint 3 correspond respectively to laryngeal mask snorkel are gentle Sampler body chamber.The L-shaped joint connects breathing circuit filter 2, the connection wye 4 of the breathing circuit filter connection two-chamber, the Y shape Joint connects Anesthesia machine connecting tube.

In the present embodiment, the structure of the L-shaped joint is identical with the L-shaped joint design of embodiment 1,

In the present embodiment, the structure of the connection wye 4 is identical with the connection wye structure of embodiment 3.

In the present embodiment, the breathing circuit filter 2 includes the first housing 2-1, and machine end 2- is provided with the first shell one end 2, the first housing other end is provided with patient end 2-3, and the middle part of first housing is more than machine end 2-2 and patient end 2-3, Suction gas filtration chamber 2-6, exhaled gas filter chamber 2-7 and first gas sampling cavity 2-5 are provided with the first housing middle part, The first filter core 2-8 is equipped with the suction gas filtration chamber 2-6, exhaled gas filter chamber 2-7 and gas sampling chamber 2-5.Institute The affixed first gas sampling joint 2-4 of the first housing upper outside is stated, the first gas sampling joint connects with gas sampling chamber It is logical.

The operation principle of the embodiment of the present invention 5 is：

After the completion of entire patient's anesthesia induction, laryngeal mask is inserted, L-shaped joint, breathing circuit filter 2 and Y shape is sequentially connected and connects Head, connection wye connect Anesthesia machine, the gas sampler and breathing that Anesthesia machine or patient monitor are connected by Anesthesia machine connecting tube 7 Gas sampler connection on filter.From on patient's glottis, expiration chamber 1-2A, the suction muffler 1-2B of laryngeal mask snorkel pass through L-shaped joint, breathing circuit filter 2, connection wye and Anesthesia machine connecting tube 7 are connected with Anesthesia machine, in the absence of shared tube chamber；Due to With the presence of unidirectional valve inside Anesthesia machine, this system is set to form two independent air-breathings and exhalation path, and breathing every time During form loop.Gas sampling by the gas sampling chamber 1-2C in laryngeal mask snorkel, L-shaped joint, first is provided with it Filter core 2-8 breathing circuit filter 2 and the gas sampling joint 2-4 that is arranged on outside breathing circuit filter housing are realized.When needs pair When patient implements drainage procedure, drainage tube can be inserted to supravasal drainage lumens to implement drainage to patient.

Embodiment 6,

Refer to Figure 26-Figure 28 d, zero dead space intubatton type laryngeal mask respiratory system, the laryngeal mask airway of close one section of the cover body Shaft core position in pipe is provided with expiration chamber 1-2A, by side provided with section is semi-moon shaped suction muffler 1-2B outside expiration chamber, institute The adjacent position for stating expiration chamber and suction muffler is provided with gas sampling chamber 1-2C, and one end connection of the gas sampling chamber is set Gas sampling mouth on cover body, the section of the expiration chamber is circle, and the section of the suction muffler is semilune.The gas One end connection of sampling cavity is arranged on the gas sampling mouth on cover body, and the gas sampling chamber other end is with being arranged on outside laryngeal mask snorkel The external gas sampler 6 in portion connects, and the external gas sampler connects external gas sampling joint 5 by joint.Exhaling Drainage lumens 1-2D is additionally provided with the conduit of the outer opposite side of air cavity, described drainage lumens one end connects the drainage at cover body patient's insertion end Mouth 1-1A.The laryngeal mask snorkel is double cavity structure, respectively suction muffler 1-2B and expiration chamber 1- close to one section of L-shaped joint 2A, the laryngeal mask snorkel connect L-shaped joint by joint, and the L-shaped joint connects breathing circuit filter 2, the breath Device 2 connects connection wye 3, and the connection wye connects Anesthesia machine connecting tube, and the breathing circuit filter, L-shaped joint and connection wye are equal For double cavity structure.

In the present embodiment, the breathing circuit filter 2 includes the first housing 2-1, and machine end 2- is provided with the first shell one end 2, the first housing other end is provided with patient end 2-3, and the middle part of first housing is more than machine end 2-2 and patient end 2-3, Suction gas filtration chamber 2-6, exhaled gas filter chamber 2-7 and gas sampling chamber 2-5 are provided with the first housing middle part, it is described The first filter core 2-8 is equipped with suction gas filtration chamber 2-6 and exhaled gas filter chamber 2-7.

In the present embodiment, the L-shaped joint is identical with the structure of L-shaped joint in embodiment 2, the structure of the Y shapes joint It is identical with the structure of connection wye in embodiment 3.

The operation principle of the embodiment of the present invention 6 is：

After the completion of entire patient's anesthesia induction, laryngeal mask is inserted, L-shaped joint, breathing circuit filter 2 and Y shape is sequentially connected and connects Head, connection wye connect Anesthesia machine, the gas sampler and laryngeal mask that Anesthesia machine or patient monitor are connected by Anesthesia machine connecting tube 7 External gas sampler connection with filter.From on patient's glottis, expiration chamber 1-2A, the suction muffler 1-2B of laryngeal mask snorkel It is connected by L-shaped joint, breathing circuit filter 2, connection wye and Anesthesia machine connecting tube 7 with Anesthesia machine, in the absence of shared tube chamber； Due to, with the presence of unidirectional valve, making this system form two independent air-breathings and exhalation path inside Anesthesia machine, and each Loop is formed in respiratory.Gas sampling is provided with the first filter core by the gas sampling chamber 1-2C in laryngeal mask snorkel, in it 2-8 breathing circuit filter 2, external gas sampler 6 and external gas sampling joint 5 is realized.When need to patient implement draw During stream operation, drainage tube can be inserted to supravasal drainage lumens to implement drainage to patient.

Embodiment described in accompanying drawing of the present invention is exemplary, is only used for explaining the present invention, and it is not intended that to this The limitation of invention.

Claims

1. a kind of compound laryngeal mask respiratory system of zero dead space, including laryngeal mask component, L-shaped joint, detachable connection wye and anesthesia Machine connecting tube, the laryngeal mask component include cover body, conduit provided with drainage lumens and laryngeal mask snorkel connect with cover body in it and The inflating catheter of cover body connection and the charge valve connected with inflating catheter, are provided with draining hole, it is special in patient's insertion end of cover body Sign is：Shaft core position in the laryngeal mask snorkel is provided with expiration chamber, by side provided with section is semilune outside expiration chamber Suction muffler, the adjacent position of the expiration chamber and suction muffler is provided with gas sampling chamber, the conduit of opposite side outside expiration chamber Inside be additionally provided with drainage lumens, the draining hole at drainage lumens one end connection cover body patient's insertion end, the laryngeal mask snorkel it is another One end is communicated with the L-shaped joint of multi-cavity, and the L-shaped joint connects the connection wye of detachable multi-cavity, the connection wye connection Anesthesia machine connecting tube.

2. the compound laryngeal mask respiratory system of zero dead space according to claim 1, it is characterised in that：In the laryngeal mask snorkel Shaft core position be provided with section as circular expiration chamber, by side provided with section be semi-moon shaped suction muffler outside expiration chamber, institute The adjacent position for stating expiration chamber and suction muffler is provided with gas sampling chamber position, is additionally provided with and draws in the conduit of opposite side outside expiration chamber Chamber is flowed, described drainage lumens one end connects the draining hole at cover body patient's insertion end, and one end connection of the gas sampling chamber is set Gas sampling mouth on cover body, the L-shaped joint of the other end connection multi-cavity of gas sampling chamber；The laryngeal mask snorkel it is another End is connected with the L-shaped joint of three chambers corresponding with expiration chamber, suction muffler and gas sampling chamber and the connection wye of three chambers, the Y The second gas sampling joint being connected with gas sampling chamber, the connection wye connection Anesthesia machine connection are provided with the outside of shape joint Pipe；

The connection wye includes the second housing, defeated provided with patient interface end, Anesthesia machine output end and Anesthesia machine on the second housing Enter end, the second filter core is housed in the second shell body, is connected with what is connected with second gas sampling cavity on the outside of connection wye Second gas sampling joint, the 3rd filter core is housed in gas sampling intracavitary, the second gas sampling cavity connects with gas sampling chamber It is logical.

3. the compound laryngeal mask respiratory system of zero dead space according to claim 2, it is characterised in that：The L-shaped joint and larynx One end of cover breather pipe connection is provided with circular expiration chamber, semilune suction muffler and gas sampling chamber corresponding to laryngeal mask snorkel, The expiration chamber of one end that the L-shaped joint is connected with connection wye and suction muffler section are semicircle.

4. the compound laryngeal mask respiratory system of zero dead space according to claim 1, it is characterised in that：Close one section of the cover body Laryngeal mask snorkel in shaft core position be provided with expiration chamber, by side provided with section be semi-moon shaped suction muffler outside expiration chamber, The adjacent position of the expiration chamber and suction muffler is provided with gas sampling chamber position, is additionally provided with outside expiration chamber in the conduit of opposite side Drainage lumens, described drainage lumens one end connect the draining hole at cover body patient's insertion end, and one end connection of the gas sampling chamber is set Put the gas sampling mouth on cover body, the section of the expiration chamber is circle, and the section of the suction muffler is semilune, the gas One end connection of sampler body chamber is arranged on the gas sampling mouth on cover body, and the gas sampling chamber other end is with being arranged on laryngeal mask snorkel Outside external gas sampler connection, the external gas sampler connects external gas sampling joint by joint, described Laryngeal mask snorkel is double cavity structure, respectively suction muffler and expiration chamber close to one section of L-shaped joint, and the laryngeal mask snorkel passes through Joint connects L-shaped joint, and the L-shaped joint connects connection wye, and the connection wye connects Anesthesia machine connecting tube, and the L-shaped connects Head and connection wye are double cavity structure；

One end of the L-shaped joint is Anesthesia machine interface end, and the other end is patient end, is provided with the patient end and laryngeal mask airway Two chambers corresponding to pipe suction muffler and expiration chamber, respectively the expiration chamber of circular cross-section and the suction muffler of half-moon cross-section.

5. the compound laryngeal mask respiratory system of zero dead space according to claim 4, it is characterised in that：The external gas sampling Joint includes the 3rd housing, input end connector, output end connector and the 4th filter core, in the 3rd housing built with the 4th filter core, institute State the 3rd shell one end and be connected with input end connector, the 3rd housing other end is connected with output end connector.

6. a kind of compound laryngeal mask respiratory system of zero dead space, including laryngeal mask component, breathing circuit filter, L-shaped joint, detachable Y Shape joint and Anesthesia machine connecting tube, the laryngeal mask component include cover body, led in it provided with drainage lumens and the laryngeal mask connected with cover body The conduit of tracheae, the inflating catheter connected with cover body and the charge valve connected with inflating catheter, set in patient's insertion end of cover body There is draining hole, it is characterised in that：Shaft core position in the laryngeal mask snorkel is provided with section as circular expiration chamber, in expiration chamber Outer side side is semi-moon shaped suction muffler provided with section, and the adjacent position of the expiration chamber and suction muffler is provided with gas sampling Chamber, is additionally provided with drainage lumens outside expiration chamber in the conduit of opposite side, described drainage lumens one end is connected at cover body patient's insertion end Draining hole, the other end of the laryngeal mask snorkel are communicated with the breathing circuit filter of multi-cavity, the L of the breathing circuit filter connection multi-cavity Shape joint, the detachable connection wye of the L-shaped joint connection multi-cavity, the connection wye connect Anesthesia machine connecting tube.

7. the compound laryngeal mask respiratory system of zero dead space according to claim 6, it is characterised in that：In the laryngeal mask snorkel Shaft core position be provided with section as circular expiration chamber, by side provided with section be semi-moon shaped suction muffler outside expiration chamber, institute The adjacent position for stating expiration chamber and suction muffler is provided with gas sampling chamber, is additionally provided with drainage in the conduit of opposite side outside expiration chamber Chamber, described drainage lumens one end connect the draining hole at cover body patient's insertion end, and one end connection of the gas sampling chamber is arranged on Gas sampling mouth on cover body, the breathing circuit filter is interior to be provided with three chambers corresponding with laryngeal mask snorkel, in breathing circuit filter Outside is additionally provided with the gas sampling joint connected with the gas sampling chamber of laryngeal mask snorkel；The laryngeal mask snorkel connection is directly exhaled It is drawn through filter, the L-shaped joint of the breathing circuit filter connection two-chamber, the connection wye of the L-shaped joint connection two-chamber, the Y shape Joint connects Anesthesia machine connecting tube；

One end of the L-shaped joint is the interface end being connected with connection wye, and the other end is the patient connected with breathing circuit filter End, it is provided with L-shaped joint relative with breathing circuit filter machine end semicircle exhaled gas filter chamber and suction gas filtration chamber The exhaled gas filter chamber and suction gas filtration chamber answered.

8. the compound laryngeal mask respiratory system of zero dead space according to claim 7, it is characterised in that：The breathing circuit filter bag Include the first housing, machine end be provided with the first shell one end, the first housing other end is provided with patient end, the patient end be provided with Laryngeal mask snorkel circle expiration chamber, semilune suction muffler and exhaled gas filter chamber, suction gas mistake corresponding to gas sampling chamber Filter chamber and first gas sampling cavity, the machine end are provided with the symmetrically arranged exhaled gas filter chamber of section semicircular in shape and suction Gas filtration chamber, the gas sampling chamber in first gas sampling cavity connection laryngeal mask snorkel, the suction gas filtration chamber, Exhaled gas filter chamber and gas sampling intracavitary are equipped with the first filter core；The affixed first gas sampling of first hull outside connects Head, the first gas sampling joint connect with first gas sampling cavity；The semicircle exhaled gas filter chamber of the machine end With suction gas filtration chamber and the L-shaped fittings of two-chamber.

9. the compound laryngeal mask respiratory system of zero dead space according to claim 6, it is characterised in that：Close one section of the cover body Laryngeal mask snorkel in shaft core position be provided with section as circular expiration chamber, by side provided with section be first quarter moon outside expiration chamber The suction muffler of shape, the adjacent position of the expiration chamber and suction muffler are provided with gas sampling chamber, and opposite side leads outside expiration chamber Drainage lumens are additionally provided with pipe, described drainage lumens one end connects the draining hole at cover body patient's insertion end, the gas sampling chamber One end connection is arranged on the gas sampling mouth on cover body, and the gas sampling chamber other end is external outside laryngeal mask snorkel with being arranged on Gas sampler connects, and the external gas sampler connects external gas sampling joint by joint；The laryngeal mask snorkel One section close to breathing circuit filter is double cavity structure, respectively suction muffler and expiration chamber, and the laryngeal mask snorkel is directly connected to exhale Filter is drawn through, the breathing circuit filter connects L-shaped joint, and the L-shaped joint connects connection wye, the connection wye connection anesthesia Machine connecting tube, the breathing circuit filter, L-shaped joint and connection wye are double cavity structure.

10. the compound laryngeal mask respiratory system of zero dead space according to claim 9, it is characterised in that：The breathing circuit filter Including the first housing, machine end is provided with the first shell one end, the first housing other end is provided with patient end, and the patient end is provided with Exhaled gas filter chamber corresponding with laryngeal mask snorkel circle expiration chamber and semilune suction muffler, suction gas filtration chamber, it is described Machine end is provided with the symmetrically arranged exhaled gas filter chamber of section semicircular in shape and suction gas filtration chamber, the suction gas mistake The first filter core, the semicircle exhaled gas filtering of the breathing circuit filter machine end are equipped with filter chamber, exhaled gas filter chamber Chamber and the L-shaped joint of suction gas filtration chamber and two-chamber.