CN208756727U

CN208756727U - The compound laryngeal mask respiratory system of zero dead space

Info

Publication number: CN208756727U
Application number: CN201721631729.4U
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: 2019-04-19
Anticipated expiration: 2027-11-29

Abstract

The utility model relates to a kind of compound laryngeal mask respiratory systems of zero dead space, including laryngeal mask component, L shape connector, breathing circuit filter, connection wye and Anesthesia machine connecting tube, laryngeal mask component includes cover, the conduit of drainage lumens and laryngeal mask snorkel is equipped in it, inflating catheter and charge valve, laryngeal mask snorkel is sequentially communicated L shape connector, connection wye and connection Anesthesia machine connecting tube, be characterized in: laryngeal mask snorkel inner axes position is equipped with expiration chamber, being equipped with section by the outer side of expiration chamber is semi-moon shaped suction chamber, expiration chamber and the adjacent of suction chamber are equipped with gas sampling chamber, drainage lumens are additionally provided in the conduit of the other side outside expiration chamber, the laryngeal mask snorkel other end is connected to multi-cavity L shape connector, multi-cavity L shape connector connects multi-cavity connection wye, multi-cavity connection wye connects Anesthesia machine connecting tube.Advantage is: can eliminate mechanical inefficiencies chamber, respiration inhibition caused by anaesthetic is effectively relieved in the general anesthesia for retaining autonomous respiration, improve breath function due, correct 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 utility model belongs to clinical treatment equipment technology field, breathes more particularly to a kind of compound laryngeal mask of zero dead space System.

Background technique

Clinically, dead space also known as breathes dead space, refers to the space that gas exchanges are not participated in respiratory, including life Manage dead space and mechanical inefficiencies chamber.Physiological dead space includes bronchus, tracheae, oral cavity, nasal cavity；Mechanical inefficiencies chamber includes that laryngeal mask is logical 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 not can avoid, and physiological dead space is adapted to by patient, not influence on anesthesia； How to eliminate mechanical inefficiencies chamber or reduce the bring adverse effect of mechanical inefficiencies chamber have become in clinical anesthesia one it is urgently to be resolved The problem of.Currently, breathing pattern of the patient under generalized anesthetic state is divided into autonomous respiration and Mechanical course breathes two ways. Autonomous respiration refers to that patient breathes by itself strength, since the respiration inhibition of arcotic acts on the presence with mechanical inefficiencies chamber, Gas concentration lwevel in blood samples of patients can be made to increase, show as blood pressure raising, increased heart rate, respiratory rate is accelerated；Mechanical course Breathing refers to that patient's autonomous respiration suspends, and carrys out assisted respiartion by ventilator, due to the presence of mechanical inefficiencies chamber, ventilator need to be provided more Big ventilatory capacity 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 etc..It is breathed every time in infant's anesthesia and often there was only tens Milliliter gas, due to the presence of mechanical inefficiencies chamber, make suck in gas every time have close to half be oneself be discharged but without absorption The exhaust gas of filtering；Although will not anoxic, carbon dioxide in blood can be made to increase and bring adverse reaction.Eliminate mechanical inefficiencies Chamber can alleviate respiration inhibition caused by anaesthetic in the general anesthesia for retaining autonomous respiration, improve respiratory function, correct Body acid-base imbalance, and then improve vital sign situation；Ventilatory capacity can be reduced in the general anesthesia of control breathing, reduction is exhaled Pressure in road is inhaled, respiratory rate is slowed down, reduces respiratory system damage.Patient age weight is smaller, and physical condition is poorer, when operation Between it is longer, eliminate mechanical inefficiencies chamber clinical meaning it is bigger.

Utility model content

The utility model is technical problem present in solution well-known technique and mechanical inefficiencies chamber can be eliminated, delay by providing one kind Respiration inhibition caused by anaesthetic is solved, improves respiratory function, correct patient's body acid-base imbalance, and then improves life entity symptom The compound laryngeal mask respiratory system of zero dead space of condition.

The utility model is adopted the technical scheme that solve technical problem present in well-known technique:

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

The utility model can also adopt the following technical scheme that

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

The connection wye includes second shell, is equipped with patient interface end, Anesthesia machine output end and anesthesia on the second housing Machine input terminal, the second shell are provided with the second filter core, are connected on the outside of connection wye and connect with second gas sampling cavity Logical second gas sampling joint, it is intracavitary equipped with third filter core, the second gas sampling cavity and gas sampling in gas sampling Chamber connection.One end that the L shape connector is connect with laryngeal mask snorkel is equipped with the round expiration chamber corresponding to laryngeal mask snorkel, half a month Shape suction chamber and gas sampling chamber, the expiration chamber of one end that the L shape connector is connect with connection wye and suction chamber section are half It is round.

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

One end of the L shape connector is Anesthesia machine interface end, and the other end is patient end, is equipped in the patient end and laryngeal mask Snorkel suction chamber and corresponding two chamber of expiration chamber, respectively the expiration chamber of circular cross-section and the suction chamber of half-moon cross-section.

The external gas sampling joint includes third shell, input end connector, output end connector and the 4th filter core, the Three shells are provided with the 4th filter core, and third shell one end is connected with input end connector, and the third shell 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 shape connector, detachable Y shape Connector and Anesthesia machine connecting tube, the laryngeal mask component include cover, its interior laryngeal mask airway for being equipped with drainage lumens and being connected to cover The conduit of pipe, the inflating catheter being connected to cover and the charge valve being connected to inflating catheter are equipped in patient's insertion end of cover Draining hole, it is characterised in that: it is circular expiration chamber that the shaft core position in the laryngeal mask snorkel, which is equipped with section, outside expiration chamber Section is equipped with by side as semi-moon shaped suction chamber, the adjacent position of the expiration chamber and suction chamber is equipped with gas sampling chamber, Drainage lumens, the drainage at drainage lumens one end connection cover patient insertion end are additionally provided in the conduit of the other side outside expiration chamber Mouthful, the other end of the laryngeal mask snorkel is communicated with the breathing circuit filter of multi-cavity, and the L shape of the breathing circuit filter connection multi-cavity connects Head, the detachable connection wye of the L shape connector connection multi-cavity, the connection wye connect Anesthesia machine connecting tube.

It is circular expiration chamber that shaft core position in the laryngeal mask snorkel, which is equipped with section, is equipped with by side outside expiration chamber Section is semi-moon shaped suction chamber, and the adjacent position of the expiration chamber and suction chamber is equipped with gas sampling chamber, outside expiration chamber Drainage lumens, the draining hole at drainage lumens one end connection cover patient insertion end, the gas are additionally provided in the conduit of the other side One end of sampler body chamber is connected to the gas sampling mouth being arranged on cover, is equipped with and laryngeal mask snorkel pair in the breathing circuit filter Three chambers answered, are additionally provided with the gas sampling joint being connected to 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 shape connector of the breathing circuit filter connection two-chamber, the L shape connector The connection wye of two-chamber is connected, the connection wye connects Anesthesia machine connecting tube；

One end of the L shape connector is the interface end connecting with connection wye, and the other end is the trouble being connected to breathing circuit filter Person end is equipped with and breathing circuit filter machine end semicircle exhaled gas filter chamber and sucking gas filtration chamber phase in L shape connector Corresponding exhaled gas filter chamber and sucking gas filtration chamber.

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

It is circular expiration chamber that shaft core position in close one section of cover of the laryngeal mask snorkel, which is equipped with section, is being exhaled Section is equipped with as semi-moon shaped suction chamber by the outer side of chamber, and the adjacent position of the expiration chamber and suction chamber is equipped with gas sampling Chamber, is additionally provided with drainage lumens outside expiration chamber in the conduit of the other side, described drainage lumens one end is connected at cover patient insertion end Draining hole, one end of the gas sampling chamber are connected to the gas sampling mouth being arranged on cover, the gas sampling chamber other end with set The external gas sampler connection outside laryngeal mask snorkel is set, the external gas sampler connects external gas by connector Sampling joint；The laryngeal mask snorkel is double cavity structure, respectively suction chamber and expiration chamber, institute close to one section of breathing circuit filter It states laryngeal mask snorkel and is directly connected to breathing circuit filter, the breathing circuit filter connects L shape connector, and the L shape connector connects Y shape Connector, the connection wye connect Anesthesia machine connecting tube, and the breathing circuit filter, L shape connector and connection wye are two-chamber knot Structure.

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

The utility model has the advantages and positive effects of: by adopting the above technical scheme due to the utility model, i.e., logical Crossing the supraglottic breather pipe design of laryngeal mask is two-chamber or segment section three-cavity structure, and L shape connector one end is designed as three chambers, the other end It is designed as double cavity structure, consequently facilitating being correspondingly connected with three lumen laryngeal masks, original connection wye is designed as removable by breathing circuit Formula double cavity structure is unloaded to be connected with L shape connector.In this way, from patient's glottis, it is independent by the two-chamber or three chamber snorkels of laryngeal mask It is connected with the connecting tube of Anesthesia machine, there is no share lumen；Due to, with the presence of unidirectional valve, making this system inside Anesthesia machine Two independent air-breathings and exhalation path are formed, and forms loop in each respiratory.When the patient inhales, inspiratory valve Open expiratory valve is closed, and the live gas of volatile anesthetic mixture of oxygen enters patient body from air suction way.Patient exhales When gas, inspiratory valve is closed expiratory valve and is opened, and is mixed with carbon dioxide, the exhaled gas of volatile anesthetic and partial oxidation Enter the exhaust gas absorption device in Anesthesia machine from exhalation path, fully absorbing becomes virgin gas with oxygen mix after carbon dioxide Body is inhaled by a patient in next respiratory cycle.In this way, the mechanical inefficiencies chamber in breathing dead space is completely eliminated.Elimination machine Tool dead space can alleviate respiration inhibition caused by anaesthetic in the general anesthesia for retaining autonomous respiration, improve work of breathing Can, body acid-base imbalance is corrected, and then improve vital sign situation；Ventilation can be reduced in the general anesthesia of control breathing Amount reduces pressure in respiratory tract, slows down respiratory rate, reduces respiratory system damage.Patient age weight is smaller, and physical condition is got over Difference, operating time is longer, and the clinical meaning for eliminating mechanical inefficiencies chamber is bigger.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model embodiment 1；

Fig. 2 is the right view of Fig. 1；

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

Fig. 3 a is the A-A cross-sectional view of Fig. 3；

Fig. 3 b is the A direction view of Fig. 3；

Fig. 3 c is the B direction view of Fig. 3；

Fig. 4 is the top view of Fig. 3；

Fig. 5 is looking up for Fig. 3；

Fig. 6 is the structural schematic diagram of L shape connector in the utility model embodiment 1；

Fig. 6 a is the left view of Fig. 6；

Fig. 6 b is the right view of Fig. 6；

Fig. 6 c is the bottom view of Fig. 6；

Fig. 7 is the structural schematic diagram of connection wye in the utility model embodiment 1；

Fig. 7 a is the left view of Fig. 7；

Fig. 7 b is the top view of Fig. 7；

Fig. 8 is the structural schematic diagram of the utility model embodiment 2；

Fig. 9 is the right view of Fig. 8；

Figure 10 is the laryngeal mask component structure diagram of the utility model embodiment 2；

Figure 10 a is the C direction view of Figure 10；

Figure 10 b is the portion the A enlarged drawing of Figure 10；

Figure 11 is the top view of Figure 10；

Figure 12 is the bottom view of Figure 10；

Figure 13 is the L-type joint structure schematic diagram of the utility model embodiment 2；

Figure 13 a is the left view of Figure 13；

Figure 13 b is the right view of Figure 13；

Figure 13 c is the bottom view of Figure 13；

Figure 14 is the external gas sampling joint structural schematic diagram of the utility model embodiment 2；

Figure 15 is the connection wye structural schematic diagram of the utility model embodiment 2；

Figure 15 a is the left view of Figure 15；

Figure 15 b is the top view of Figure 15；

Figure 16 is the structural schematic diagram of the utility model embodiment 3；

Figure 17 is the right view of Figure 16；

Figure 18 is the structural schematic diagram of 3 breathing circuit filter of the utility model embodiment；

Figure 18 a is the right view of Figure 18；

Figure 18 b is the top view of Figure 18；

Figure 18 c is the bottom view of Figure 18；

Figure 18 d is the B-B cross-sectional view of Figure 18；

Figure 18 e is the rearview of Figure 18；

Figure 19 is the structural schematic diagram of L shape connector in utility model embodiment 3；

Figure 19 a is the right view of Figure 19；

Figure 19 b is the bottom view of Figure 19；

Figure 20 is the structural schematic diagram of the utility model embodiment 4；

Figure 21 is the right view of Figure 20；

Figure 22 is the structural schematic diagram of breathing circuit filter in the utility model embodiment 4；

Figure 22 a is the side view of Figure 22；

Figure 22 b is the top view of Figure 22

Figure 22 c is the bottom view of Figure 22；

Figure 22 d is Figure 22 C-C cross-sectional view；

Figure 23 is the structural schematic diagram of the utility model embodiment 5；

Figure 24 is the right view of Figure 23；

Figure 25 is the structural schematic diagram of breathing circuit filter in the utility model embodiment 5；

Figure 25 a is the side view of Figure 25；

Figure 25 b is the B-B cross-sectional view of Figure 25；

Figure 25 c is the C direction view of Figure 25；

Figure 25 d is the D direction view of Figure 25；

Figure 26 is the structural schematic diagram of the utility model embodiment 6；

Figure 27 is the right view of Figure 25；

Figure 28 is the structural schematic diagram of breathing circuit filter in the utility model embodiment 6；

Figure 28 a is the side view of Figure 28；

Figure 28 b is the C-C cross-sectional view of Figure 28；

Figure 28 c is the E direction view of Figure 28；

Figure 28 d is the F direction view of Figure 28；

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

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

3, L shape connector；3-1, Anesthesia machine interface end；3-2, patient end；

4, 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, third filter core；4-7, second gas sampling joint；4-8, second shell；

5, external gas sampling joint；5-1, third shell；5-2, input end connector；5-3, output end connector；5-4, Four filter cores；

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

Specific embodiment

For the utility model content, feature and effect that can further appreciate that the utility model, the following examples are hereby given, and It is described in detail with the accompanying drawings as follows:

Embodiment 1,

Please 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 shape connector 3, detachable Formula connection wye 4 and Anesthesia machine connecting tube 7, the laryngeal mask component include cover 1-1, are equipped with drainage lumens 1-2D and and cover in it The conduit of the laryngeal mask snorkel 1-2 of connection, the inflating catheter 1-3 being connected to cover and the charge valve 1-4 being connected to inflating catheter, Draining hole is equipped in patient's insertion end of cover.Shaft core position in the laryngeal mask snorkel is equipped with expiration chamber 1-2A, is exhaling Section is equipped with as semi-moon shaped suction chamber 1-2B by the outer side of chamber, and the adjacent position of the expiration chamber and suction chamber is equipped with gas Sampling cavity 1-2C, is additionally provided with drainage lumens 1-2D outside expiration chamber in the conduit of the other side, drainage lumens one end connection cover 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 shape connector 3 of multi-cavity, the L shape connector The connection wye 4 of detachable multi-cavity is connected, the connection wye connects Anesthesia machine connecting tube 7.

It is circular expiration chamber 1-2A that shaft core position in the laryngeal mask snorkel, which is equipped with section, outside expiration chamber by side It is semi-moon shaped suction chamber 1-2B equipped with section, the adjacent position of the expiration chamber and suction chamber is equipped with gas sampling chamber position 1- 2C, is additionally provided with drainage lumens 1-2D outside expiration chamber in the conduit of the other side, described drainage lumens one end is connected to cover patient insertion end The draining hole 1-1A at place.One end of the gas sampling chamber is connected to the gas sampling mouth being arranged on cover, gas sampling chamber The L shape connector of other end connection multi-cavity.The other end of the laryngeal mask snorkel is connected with and expiration chamber, suction chamber and gas sampling The L shape connector of corresponding three chamber of chamber and the connection wye of three chambers, the connection wye outside is equipped with to be connect 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 shape connector 3 is Anesthesia machine interface end 3-1, and the other end is patient end 3-2, described Patient end is connect with laryngeal mask snorkel, and the patient end is equipped with the round expiration chamber 1-2A corresponding to laryngeal mask snorkel, semilune Suction chamber 1-2B and gas sampling chamber 1-2C, the Anesthesia machine interface end 3-1 are connect with connection wye, the Anesthesia machine interface end Expiration chamber and suction chamber section be semicircle.

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

The working principle of the utility model embodiment 1 are as follows:

After the completion of entire patient's anesthesia induction, it is placed in laryngeal mask, is sequentially connected L shape connector and the connection wye with filter core, Y Shape connector 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 chamber 1-2B and the gas sampling of laryngeal mask snorkel Chamber 1-2C is connected by the L shape connector, three chamber connection wyes and Anesthesia machine connecting tube 7 of three chambers with Anesthesia machine, and share pipe is not present Chamber；Due to 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 gas sampling chamber 1-2C, L shape connector of laryngeal mask snorkel 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 into Supravasal drainage lumens can implement drainage to patient.

When patient breaths, the open expiratory valve of inspiratory valve is closed, the live gas of volatile anesthetic mixture of oxygen from Air suction way enters patient body.When patient expiration, inspiratory valve is closed expiratory valve and is opened, and is mixed with carbon dioxide, volatilizees The exhaled gas of property arcotic and partial oxidation enters the exhaust gas absorption device in Anesthesia machine from exhalation path, fully absorbs two Become live gas with oxygen mix after carbonoxide to be inhaled by a patient in next respiratory cycle.In this way, in breathing dead space Mechanical inefficiencies chamber be completely eliminated.

Embodiment 2,

Please 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 shape connector 3, removable Unload formula connection wye 4 and Anesthesia machine connecting tube 7, the laryngeal mask component include cover 1-1, be equipped in it drainage lumens 1-2D and with cover Conduit, the inflating catheter 1-3 being connected to cover and the charge valve 1- being connected to inflating catheter of the laryngeal mask snorkel 1-2 of body connection 4, draining hole is equipped in patient's insertion end of cover.Shaft core position in the laryngeal mask snorkel is equipped with expiration chamber 1-2A, is exhaling Section is equipped with as semi-moon shaped suction chamber 1-2B by the outer side of air cavity, and the adjacent position of the expiration chamber and suction chamber is equipped with gas Sampler body chamber 1-2C, is additionally provided with drainage lumens 1-2D outside expiration chamber in the conduit of the other side, described drainage lumens one end is connected to cover Draining hole 1-1A at patient's insertion end.The other end of the laryngeal mask snorkel is communicated with the L shape connector 3 of two-chamber, and the L shape connects Head connects the connection wye 4 of detachable two-chamber, and the connection wye connects Anesthesia machine connecting tube 7.

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

In the present embodiment, one end of the L shape connector 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 chamber 1-2B and expiration chamber 1-2A, the respectively expiration of circular cross-section are equipped in patient end The suction chamber 1-2B of chamber 1-2A and half-moon cross-section.

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 is equipped with the second filter core 4-4 in Anesthesia machine output end 4-2 and anesthesia machine input terminal 4-3.

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

The working principle of the utility model embodiment 2 are as follows:

After the completion of entire patient's anesthesia induction, it is placed in laryngeal mask, is sequentially connected L shape connector and the connection wye with filter core, Y Shape connector connects Anesthesia machine by Anesthesia machine connecting tube 7, the gas sampler and laryngeal mask band mistake that Anesthesia machine or patient monitor are connected The external gas sampler of filter connects.From on patient's glottis, expiration chamber 1-2A, the suction chamber 1-2B of laryngeal mask snorkel pass through L shape connector, connection wye and Anesthesia machine connecting tube 7 are connected with Anesthesia machine, and there is no share lumen；Due to having inside Anesthesia machine Unidirectional valve exists, and so that this system is formed two independent air-breathings and exhalation path, and form ring in each respiratory Road.Gas sampling passes through gas sampling chamber 1-2C, external gas sampler 6 and the external gas sampling joint 5 of laryngeal mask snorkel To realize.When needing to implement drainage procedure to patient, drainage tube can be inserted into supravasal drainage lumens to implement patient Drainage.

Embodiment 3,

Please 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 connector 3, detachable connection wye 4 and Anesthesia machine connecting tube 7, the laryngeal mask component includes cover 1-1, is equipped in it and cover Conduit, the inflating catheter 1-3 being connected to cover and the charge valve 1- being connected to inflating catheter of the laryngeal mask snorkel 1-2 of body connection 4.It is circular expiration chamber 1-2A that shaft core position in the laryngeal mask snorkel, which is equipped with section, is equipped with and cuts by side outside expiration chamber Face is semi-moon shaped suction chamber 1-2B, and the adjacent position of the expiration chamber and suction chamber is equipped with gas sampling chamber 1-2C, is exhaling Drainage lumens 1-2D, the drainage at drainage lumens one end connection cover patient insertion end are additionally provided in the conduit of the outer other side of air cavity 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 shape connector of chamber, the detachable connection wye of the L shape connector connection multi-cavity, the connection wye connect Anesthesia machine connecting tube.

In the present embodiment, it is circular expiration chamber 1-2A that the shaft core position in the laryngeal mask snorkel, which is equipped with section, is being exhaled Section is equipped with as semi-moon shaped suction chamber 1-2B by the outer side of air cavity, and the adjacent position of the expiration chamber and suction chamber is equipped with gas Sampler body chamber 1-2C, one end of the gas sampling chamber are connected to the gas sampling mouth being arranged on cover.The side outside expiration chamber Side is equipped with section as semi-moon shaped suction chamber 1-2B, and the adjacent position of the expiration chamber and suction chamber is equipped with gas sampling chamber 1- 2C.Drainage lumens 1-2D is additionally provided in the conduit of the other side outside expiration chamber, described drainage lumens one end is connected to cover patient insertion end The draining hole 1-1A at place.Three chambers corresponding with laryngeal mask snorkel are equipped in the breathing circuit filter, on the outside of breathing circuit filter It is additionally provided with the gas sampling joint 2-4 being connected to 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 shape connector 3 of the breathing circuit filter connection two-chamber, the connection wye 4 of the L shape connector connection two-chamber, institute State connection wye connection Anesthesia machine connecting tube.

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

In the present embodiment, one end of the L shape connector 3 is the interface end 3-1 connecting with connection wye, and the other end is and exhales It is drawn through the patient end 3-2 of filter connection, is equipped in L shape connector 3 and is filtered with breathing circuit filter machine end semicircle exhaled gas The corresponding exhaled gas filter chamber and sucking gas filtration chamber of chamber and sucking 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 working principle of the utility model embodiment 3 are as follows:

After the completion of entire patient's anesthesia induction, it is placed in laryngeal mask, is sequentially connected breathing circuit filter 2, L shape connector 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 chamber 1-2B of laryngeal mask snorkel pass through breathing Filter 2, L shape connector, connection wye and Anesthesia machine connecting tube 7 are connected with Anesthesia machine, and there is no share lumen；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, its interior breathing for being equipped with the first filter core 2-8 Filter 2 and the gas sampling joint 2-4 being arranged in outside breathing circuit filter shell are realized.When need to patient implement drain When operation, drainage tube can be inserted into supravasal drainage lumens to implement drainage to patient.

Embodiment 4,

Please 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 connector 3, detachable connection wye 4 and Anesthesia machine connecting tube 7, the laryngeal mask component include cover 1-1, are equipped with drainage in it The conduit of chamber 1-2D and the laryngeal mask snorkel 1-2 being connected to cover, the inflating catheter 1-3 being connected to cover and with inflating catheter connect Logical charge valve 1-4.It is circular expiration chamber 1-2A that shaft core position in the laryngeal mask snorkel, which is equipped with section, outside expiration chamber Section is equipped with by side as semi-moon shaped suction chamber 1-2B, the adjacent position of the expiration chamber and suction chamber is equipped with gas sampling Chamber 1-2C.Drainage lumens 1-2D is additionally provided in the conduit of the other side outside expiration chamber, drainage lumens one end connection cover patient inserts Enter the draining hole 1-1A at end.The L shape connector of the breathing circuit filter connection two-chamber, the L shape connector connection two-chamber are detachable The connection wye of formula, the connection wye connect Anesthesia machine connecting tube.

In the present embodiment, it is circular expiration chamber 1-2A that the shaft core position in the laryngeal mask snorkel, which is equipped with section, is being exhaled Section is equipped with as semi-moon shaped suction chamber 1-2B by the outer side of air cavity, and the adjacent position of the expiration chamber and suction chamber is equipped with gas Sampler body chamber 1-2C, one end of the gas sampling chamber are connected to the gas sampling mouth being arranged on cover.It is another outside expiration chamber Drainage lumens 1-2D, the draining hole 1-1A at drainage lumens one end connection cover patient insertion end are additionally provided in the conduit of side.Institute It states and is equipped with two chambers corresponding with laryngeal mask snorkel in breathing circuit filter.The laryngeal mask snorkel connects direct breathing circuit filter, The L shape connector of the breathing circuit filter connection two-chamber, the connection wye of the L shape connector connection two-chamber, the connection wye connection Anesthesia machine connecting tube.

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

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

In the present embodiment, the structure of the L shape connector 3 and connection wye 4 and the L shape connector and connection wye knot of embodiment 3 Structure is identical.

The working principle of the utility model embodiment 4 are as follows:

After the completion of entire patient's anesthesia induction, it is placed in laryngeal mask, is sequentially connected breathing circuit filter 2, L shape connector and connection wye, Connection wye connects Anesthesia machine by Anesthesia machine connecting tube 7, the gas sampler and laryngeal mask band mistake that Anesthesia machine or patient monitor are connected The external gas sampler of filter connects.From on patient's glottis, expiration chamber 1-2A, the suction chamber 1-2B of laryngeal mask snorkel pass through Breathing circuit filter 2, L shape connector, connection wye and Anesthesia machine connecting tube 7 are connected with Anesthesia machine, and there is no share lumen；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 Loop is formed in the process.Gas sampling by gas sampling chamber 1-2C in laryngeal mask snorkel, in it equipped with the first filter core 2-8 Breathing circuit filter 2, external gas sampler 6 and external gas sampling joint 5 are realized.It is grasped when needing to implement to drain to patient When making, drainage tube can be inserted into supravasal drainage lumens to implement drainage to patient.

Embodiment 5,

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

In the present embodiment, the structure of the L shape connector and the L shape joint structure of embodiment 1 are identical,

In the present embodiment, the structure of the connection wye 4 and the connection wye structure of embodiment 3 are identical.

In the present embodiment, the breathing circuit filter 2 includes first shell 2-1, is equipped with machine end 2- in first shell one end 2, the first shell other end is equipped with patient end 2-3, and the intermediate position of the first shell is greater than machine end 2-2 and patient end 2-3, Position is equipped with sucking gas filtration chamber 2-6, exhaled gas filter chamber 2-7 and first gas sampling cavity 2-5 among first shell, The first filter core 2-8 is equipped in the sucking 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 first shell upper outside is stated, the first gas sampling joint and gas sampling chamber connect It is logical.

The working principle of the utility model embodiment 5 are as follows:

After the completion of entire patient's anesthesia induction, it is placed in laryngeal mask, is sequentially connected L shape connector, breathing circuit filter 2 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 chamber 1-2B of laryngeal mask snorkel pass through L shape Connector, breathing circuit filter 2, connection wye and Anesthesia machine connecting tube 7 are connected with Anesthesia machine, and there is no share lumen；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 is equipped with the first filter core by gas sampling chamber 1-2C, L shape connector in laryngeal mask snorkel, in it The breathing circuit filter 2 of 2-8 and the gas sampling joint 2-4 being arranged in outside breathing circuit filter shell are realized.When needing to patient When implementing drainage procedure, drainage tube can be inserted into supravasal drainage lumens to implement drainage to patient.

Embodiment 6,

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

In the present embodiment, the breathing circuit filter 2 includes first shell 2-1, is equipped with machine end 2- in first shell one end 2, the first shell other end is equipped with patient end 2-3, and the intermediate position of the first shell is greater than machine end 2-2 and patient end 2-3, Position is equipped with sucking gas filtration chamber 2-6, exhaled gas filter chamber 2-7 and gas sampling chamber 2-5 among first shell, described The first filter core 2-8 is equipped in sucking gas filtration chamber 2-6 and exhaled gas filter chamber 2-7.

In the present embodiment, the L shape connector is identical as the structure of L shape connector in embodiment 2, the structure of the Y shape connector It is identical as the structure of connection wye in embodiment 3.

The working principle of the utility model embodiment 6 are as follows:

After the completion of entire patient's anesthesia induction, it is placed in laryngeal mask, L shape connector, 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 chamber 1-2B of laryngeal mask snorkel It is connected by L shape connector, breathing circuit filter 2, connection wye and Anesthesia machine connecting tube 7 with Anesthesia machine, there is no share lumen； Due to 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 equipped with the first filter core by gas sampling chamber 1-2C in laryngeal mask snorkel, in it Breathing circuit filter 2, external gas sampler 6 and the external gas sampling joint 5 of 2-8 is realized.When need to patient implement draw When stream operation, drainage tube can be inserted into supravasal drainage lumens to implement drainage to patient.

Embodiment described in the utility model attached drawing is exemplary, and is only used for explaining the utility model, and cannot be managed Solution is limitations of the present invention.

Claims

1. a kind of compound laryngeal mask respiratory system of zero dead space, including laryngeal mask component, L shape connector, detachable connection wye and anesthesia Machine connecting tube, the laryngeal mask component include cover, conduit equipped with drainage lumens and laryngeal mask snorkel be connected to cover in it and The inflating catheter of cover connection and the charge valve being connected to inflating catheter are equipped with draining hole in patient's insertion end of cover, special Sign is: the shaft core position in the laryngeal mask snorkel is equipped with expiration chamber, and being equipped with section by side outside expiration chamber is semilune Suction chamber, the adjacent position of the expiration chamber and suction chamber is equipped with gas sampling chamber, the conduit of the other side outside expiration chamber Inside be additionally provided with drainage lumens, the draining hole at drainage lumens one end connection cover patient insertion end, the laryngeal mask snorkel it is another One end is communicated with the L shape connector of multi-cavity, and the L shape connector 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 equipped with section be circular expiration chamber, outside expiration chamber by side be equipped with section be semi-moon shaped suction chamber, institute The adjacent position for stating expiration chamber and suction chamber is equipped with gas sampling chamber position, is additionally provided with and draws in the conduit of the other side outside expiration chamber Chamber is flowed, the draining hole at drainage lumens one end connection cover patient insertion end, one end of the gas sampling chamber is connected to setting Gas sampling mouth on cover, the L shape connector of the other end connection multi-cavity of gas sampling chamber；The laryngeal mask snorkel it is another End is connected with the L shape connector of three chamber corresponding with expiration chamber, suction chamber and gas sampling chamber and the connection wye of three chambers, the Y The second gas sampling joint connecting with gas sampling chamber, the connection wye connection Anesthesia machine connection are equipped on the outside of shape connector Pipe；

The connection wye includes second shell, and it is defeated to be equipped with patient interface end, Anesthesia machine output end and Anesthesia machine on the second housing Enter end, the second shell is provided with the second filter core, is connected on the outside of connection wye and is connected to second gas sampling cavity Second gas sampling joint, it is intracavitary equipped with third filter core, the second gas sampling cavity and gas sampling chamber company in gas sampling 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 shape connector and larynx One end of cover snorkel connection is equipped with round expiration chamber, semilune suction chamber and gas sampling chamber corresponding to laryngeal mask snorkel, The expiration chamber of one end that the L shape connector is connect with connection wye and suction chamber section are semicircle.

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

One end of the L shape connector is Anesthesia machine interface end, and the other end is patient end, is equipped in the patient end and laryngeal mask airway Pipe suction chamber and corresponding two chamber of expiration chamber, respectively the expiration chamber of circular cross-section and the suction chamber 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 Connector includes third shell, input end connector, output end connector and the 4th filter core, is provided with the 4th filter core, institute in third shell It states third shell one end and is connected with input end connector, the third shell 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 shape connector, detachable Y Shape connector and Anesthesia machine connecting tube, the laryngeal mask component include cover, lead to equipped with drainage lumens and laryngeal mask be connected to cover in it The conduit of tracheae, the inflating catheter being connected to cover and the charge valve being connected to inflating catheter are set in patient's insertion end of cover There is draining hole, it is characterised in that: it is circular expiration chamber that the shaft core position in the laryngeal mask snorkel, which is equipped with section, in expiration chamber Section is equipped with by outer side as semi-moon shaped suction chamber, the adjacent position of the expiration chamber and suction chamber is equipped with gas sampling Chamber, is additionally provided with drainage lumens outside expiration chamber in the conduit of the other side, described drainage lumens one end is connected at cover patient 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 connector, the detachable connection wye of the L shape connector 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 equipped with section be circular expiration chamber, outside expiration chamber by side be equipped with section be semi-moon shaped suction chamber, institute The adjacent position for stating expiration chamber and suction chamber is equipped with gas sampling chamber, is additionally provided with drainage in the conduit of the other side outside expiration chamber Chamber, described drainage lumens one end are connected to the draining hole at cover patient insertion end, and one end connection setting of the gas sampling chamber exists Gas sampling mouth on cover, the breathing circuit filter is interior to be equipped with three chambers corresponding with laryngeal mask snorkel, in breathing circuit filter Outside is additionally provided with the gas sampling joint being connected to the gas sampling chamber of laryngeal mask snorkel；The laryngeal mask snorkel connection is directly exhaled It is drawn through filter, the L shape connector of the breathing circuit filter connection two-chamber, the connection wye of the L shape connector connection two-chamber, the Y shape Connector connects Anesthesia machine connecting tube；

One end of the L shape connector is the interface end connecting with connection wye, and the other end is the patient being connected to breathing circuit filter End is equipped with opposite with breathing circuit filter machine end semicircle exhaled gas filter chamber and sucking gas filtration chamber in L shape connector The exhaled gas filter chamber and sucking 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 packet Include first shell, first shell one end be equipped with machine end, the first shell other end be equipped with patient end, the patient end be equipped with Laryngeal mask snorkel circle expiration chamber, semilune suction chamber and the corresponding exhaled gas filter chamber of gas sampling chamber, sucking gas mistake Filter chamber and first gas sampling cavity, the machine end are equipped with the symmetrically arranged exhaled gas filter chamber of section semicircular in shape and sucking Gas filtration chamber, the gas sampling chamber in first gas sampling cavity connection laryngeal mask snorkel, the sucking gas filtration chamber, Exhaled gas filter chamber and gas sampling is intracavitary is equipped with the first filter core；Affixed first gas sampling connects on the outside of the first shell Head, the first gas sampling joint are connected to first gas sampling cavity；The semicircle exhaled gas filter chamber of the machine end With the L shape fittings of sucking gas filtration chamber and two-chamber.

9. the compound laryngeal mask respiratory system of zero dead space according to claim 6, it is characterised in that: described close one section of cover Laryngeal mask snorkel in shaft core position be equipped with section be circular expiration chamber, outside expiration chamber by side be equipped with section be half a month The adjacent position of the suction chamber of shape, the expiration chamber and suction chamber is equipped with gas sampling chamber, and the other side leads outside expiration chamber Drainage lumens are additionally provided in pipe, described drainage lumens one end is connected to the draining hole at cover patient insertion end, the gas sampling chamber One end is connected to the gas sampling mouth that is arranged on cover, the gas sampling chamber other end be arranged in it is external outside laryngeal mask snorkel Gas sampler connection, the external gas sampler connect external gas sampling joint by connector；The laryngeal mask snorkel One section close to breathing circuit filter is double cavity structure, and respectively suction chamber and expiration chamber, the laryngeal mask snorkel is directly connected to exhale It is drawn through filter, the breathing circuit filter connects L shape connector, and the L shape connector connects connection wye, the connection wye connection anesthesia Machine connecting tube, the breathing circuit filter, L shape connector 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 first shell, it is equipped with machine end in first shell one end, the first shell other end is equipped with patient end, and the patient end is equipped with Exhaled gas filter chamber corresponding with laryngeal mask snorkel circle expiration chamber and semilune suction chamber, sucking gas filtration chamber, it is described Machine end is equipped with the symmetrically arranged exhaled gas filter chamber of section semicircular in shape and sucking gas filtration chamber, the sucking gas mistake The first filter core, the semicircle exhaled gas filtering of the breathing circuit filter machine end are equipped in filter chamber, exhaled gas filter chamber Chamber and the L shape connector for sucking gas filtration chamber and two-chamber.