CN107823767A - The classic laryngeal mask respiratory system of zero dead space - Google Patents
The classic laryngeal mask respiratory system of zero dead space Download PDFInfo
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- CN107823767A CN107823767A CN201711223364.6A CN201711223364A CN107823767A CN 107823767 A CN107823767 A CN 107823767A CN 201711223364 A CN201711223364 A CN 201711223364A CN 107823767 A CN107823767 A CN 107823767A
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- chamber
- laryngeal mask
- joint
- gas sampling
- patient
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- 210000002345 respiratory system Anatomy 0.000 title claims abstract description 21
- 206010002091 Anaesthesia Diseases 0.000 claims abstract description 93
- 230000037005 anaesthesia Effects 0.000 claims abstract description 93
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 71
- 238000005070 sampling Methods 0.000 claims description 105
- 210000004704 glottis Anatomy 0.000 claims description 29
- 238000001914 filtration Methods 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 210000000867 larynx Anatomy 0.000 claims 6
- 230000005764 inhibitory process Effects 0.000 abstract description 5
- 208000001889 Acid-Base Imbalance Diseases 0.000 abstract description 4
- 230000003444 anaesthetic effect Effects 0.000 abstract description 4
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 139
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 17
- 229960004424 carbon dioxide Drugs 0.000 description 11
- 230000000241 respiratory effect Effects 0.000 description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
- 230000003434 inspiratory effect Effects 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- 229910052760 oxygen Inorganic materials 0.000 description 10
- 239000001301 oxygen Substances 0.000 description 10
- 210000003128 head Anatomy 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 description 6
- 239000001569 carbon dioxide Substances 0.000 description 6
- 239000003983 inhalation anesthetic agent Substances 0.000 description 6
- 229910002090 carbon oxide Inorganic materials 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 238000002695 general anesthesia Methods 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 230000036387 respiratory rate Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 210000004072 lung Anatomy 0.000 description 3
- 230000004202 respiratory function Effects 0.000 description 3
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 230000037396 body weight Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010067484 Adverse reaction Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006838 adverse reaction Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 210000000621 bronchi Anatomy 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 210000003928 nasal cavity Anatomy 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/01—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes specially adapted for anaesthetising
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/12—Preparation of respiratory gases or vapours by mixing different gases
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/22—Carbon dioxide-absorbing devices ; Other means for removing carbon dioxide
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
Abstract
The present invention relates to a kind of classic laryngeal mask respiratory system of zero dead space, it is characterised by：Including laryngeal mask component, L-shaped joint, connection wye and Anesthesia machine connecting tube, laryngeal mask component includes cover body, the laryngeal mask snorkel being connected with cover body, the inflating catheter and charge valve connected with cover body, laryngeal mask component passes through laryngeal mask snorkel fittings L-shaped joint, L-shaped joint connects connection wye, connection wye connects Anesthesia machine connecting tube, the cross sectional shape of laryngeal mask snorkel is oblateness, at least provided with two chambers in laryngeal mask snorkel, L-shaped joint is two-chamber or three-cavity structure, and connection wye is the Demountable in it at least provided with two chambers.Advantage is：Mechanical inefficiencies chamber can be eliminated, respiration inhibition caused by effectively alleviating anaesthetic, improves breath function due, corrects patient's body acid-base imbalance, and then can significantly improve vital sign situation.The elimination mechanical inefficiencies chamber especially in infant, critical patient or prolonged operationses, and ICU management etc. are especially significant.
Description
Technical field
The invention belongs to clinical treatment equipment technology field, more particularly to a kind of classic 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 classic 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 classic laryngeal mask respiratory system of zero dead space, it is characterised in that：Including laryngeal mask component, L-shaped joint, detachable Y shape
Joint and Anesthesia machine connecting tube, laryngeal mask component includes cover body, the laryngeal mask snorkel being connected with cover body, the inflation that is connected with cover body are led
Pipe and charge valve, the laryngeal mask component connect connection wye by laryngeal mask snorkel fittings L-shaped joint, the L-shaped joint,
The connection wye connects Anesthesia machine connecting tube, and the cross sectional shape of the laryngeal mask snorkel is oblate, in the laryngeal mask snorkel
At least provided with two chambers, the L-shaped joint is two-chamber or three-cavity structure, at least provided with the removable of two chambers in the connection wye
Unload formula structure.
The present invention can also adopt the following technical scheme that：
The laryngeal mask snorkel of the laryngeal mask component is provided with three chambers, respectively suction muffler, expiration chamber and gas sampling chamber, institute
The one end for stating gas sampling chamber is located at position between the inflatable cuff of cover body and breather pipe, and described suction muffler one end corresponds to patient
Glottis upper bit, described expiration chamber one end correspond to patient glottis upper bit, the L-shaped joint and connection wye are equipped with
Corresponding three chambers, the connection wye outside are provided with the gas sampling being connected with gas sampling chamber respectively with laryngeal mask snorkel
Joint, the laryngeal mask snorkel connect the L-shaped joint of three chambers by joint, and the Y shape of L-shaped joint three chambers of connection of three chamber connects
Head, the connection wye connection Anesthesia machine connecting tube of three chamber；
One end of the L-shaped joint is the interface end being connected with connection wye, and the other end is patient end, is provided with L-shaped joint
Three-cavity structure corresponding with each chamber of laryngeal mask snorkel, respectively expiration chamber, suction muffler and gas sampling chamber；
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 what is connected with gas sampling chamber on the outside of connection wye
Gas sampling joint, the 3rd filter core is housed in gas sampling intracavitary.
The laryngeal mask snorkel of the laryngeal mask component is provided with three chambers close to one section of cover body, respectively suction muffler, expiration chamber and
Gas sampling chamber, one end of the gas sampling chamber are located at position between the inflatable cuff of cover body and breather pipe, the suction muffler
One end corresponds to the glottis upper bit of patient, and described expiration chamber one end corresponds to the glottis upper bit of patient, the gas sampling
The chamber other end is connected with external gas sampler, and the external gas sampler connects external gas sampling joint by joint；
The laryngeal mask snorkel is two-chamber, respectively suction muffler and expiration chamber close to one section of L-shaped joint, and the laryngeal mask snorkel passes through
Joint connects two-chamber L-shaped joint, and the two-chamber L-shaped joint connects two-chamber connection wye, and the two-chamber 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 patient end, is provided with L-shaped joint
Double cavity structure corresponding with each chamber of laryngeal mask snorkel, respectively expiration chamber and suction muffler；
One end of the connection wye is patient interface end, and the other end is respectively Anesthesia machine output end and anesthesia machine input terminal,
The second filter core is provided with Anesthesia machine output end and anesthesia machine input terminal.
The external gas sampling joint includes the 3rd housing, input end connector, output end connector and the 4th filter core, the
For two housings built with the 4th filter core, the 3rd shell one end is connected with input end connector, and the second housing other end is affixed
There is output end connector.
The classic laryngeal mask respiratory system of zero dead space, it is characterised in that：Including laryngeal mask component, breathing circuit filter, L-shaped joint, Y
Shape joint and Anesthesia machine connecting tube, laryngeal mask component include cover body, the laryngeal mask snorkel being connected with cover body, the inflation connected with cover body
Conduit and charge valve, the laryngeal mask component connect breathing circuit filter by laryngeal mask snorkel, and the breathing circuit filter connection L-shaped connects
Head, the L-shaped joint connect connection wye, and the connection wye connects Anesthesia machine connecting tube, the section shape of the laryngeal mask snorkel
Shape is oblateness, and at least provided with two chambers in the laryngeal mask snorkel, the L-shaped joint is two-chamber or three-cavity structure, described to exhale
It is drawn through in filter and connection wye at least provided with two chambers.
The laryngeal mask snorkel of the laryngeal mask component is provided with three chambers, respectively suction muffler, expiration chamber and gas sampling chamber, institute
The one end for stating gas sampling chamber is located at position between the inflatable cuff of cover body and breather pipe, and described suction muffler one end corresponds to patient
Glottis upper bit, described expiration chamber one end corresponds to the glottis upper bit of patient, is provided with the breathing circuit filter and laryngeal mask
Three chambers corresponding to breather pipe, the L-shaped joint and connection wye are double cavity structure, are provided with breathing circuit filter and are adopted with gas
The gas sampling joint of sample chamber connection；The laryngeal mask snorkel connects breathing circuit filter by joint, and the breathing circuit filter connects
Logical two-chamber L-shaped joint, the two-chamber L-shaped joint connect two-chamber connection wye, and the two-chamber connection wye connects Anesthesia machine connecting tube.
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 middle part of first housing is more than machine end and patient end, and suction is provided with the first housing middle part
Gas filtration chamber, exhaled gas filter chamber and gas sampling chamber, suction gas filtration chamber, exhaled gas filter chamber and the gas
The first filter core 2-8, the affixed gas sampling joint of the first housing upper outside are equipped with sampling cavity, the gas sampling connects
Head connects with gas sampling chamber.
The laryngeal mask snorkel of the laryngeal mask component is provided with three chambers close to one section of cover body, respectively suction muffler, expiration chamber and
Gas sampling chamber, one end of the gas sampling chamber are located at position between the inflatable cuff of cover body and breather pipe, the suction muffler
One end corresponds to the glottis upper bit of patient, and described expiration chamber one end corresponds to the glottis upper bit of patient, the gas sampling
The chamber other end is connected with external gas sampler, and the external gas sampler connects external gas sampling joint by joint；
The laryngeal mask snorkel is double cavity structure, respectively suction muffler and expiration chamber close to one section of breathing circuit filter, and the laryngeal mask leads to
Tracheae connects breathing circuit filter by joint, and the breathing circuit filter connects two-chamber L-shaped joint, the two-chamber L-shaped joint connection
Two-chamber connection wye, the two-chamber connection wye connect Anesthesia machine connecting tube.
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 middle part of first housing is more than machine end and patient end, and suction is provided with the first housing middle part
Gas filtration chamber, exhaled gas filter chamber and gas sampling chamber, it is described to suck in gas filtration chamber and exhaled gas filter chamber
Provided with the first filter core.
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 is designed as two-chamber or three chambers, so that and double lumen tube
Laryngeal mask is corresponding to be connected, and original connection wye is designed as detachable double cavity structure and is connected with L-shaped joint by breathing circuit.So,
From on patient's glottis, individually it is connected by the bicavity air pipe of laryngeal mask with the connecting tube of 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.When the patient inhales, inspiratory valve opens expiratory valve and closed, volatile anesthetic mixture of oxygen
Live gas enter patient body from air suction way.During patient expiration, inspiratory valve is closed expiratory valve and opened, and is mixed with two
The exhaust gas absorption device that the exhaled gas of carbonoxide, volatile anesthetic and partial oxidation enters in Anesthesia machine from exhalation path,
Fully absorb and be changed into live gas with oxygen mix after carbon dioxide and be inhaled by a patient in next respiratory cycle.So,
Mechanical inefficiencies chamber in breathing dead space is completely eliminated.Mechanical inefficiencies chamber is eliminated, in the general anesthesia for retaining autonomous respiration
Respiration inhibition caused by anaesthetic can be alleviated, 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, pressure in respiratory tract is reduced, slows down respiratory rate, is reduced
Respiratory system damages.Patient age body weight is smaller, and health is poorer, and operating time is longer, eliminates the clinic of mechanical inefficiencies chamber
Meaning 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. 4 is Fig. 3 top view；
Fig. 5 is Fig. 3 A portions enlarged drawing；
Fig. 6 is Fig. 3 A-A sectional views；
Fig. 7 is Fig. 3 B portions enlarged drawing；
Fig. 8 is Fig. 5 A direction views；
Fig. 9 is Fig. 3 B to enlarged drawing；
Figure 10 is Fig. 3 C direction views；
Figure 11 is Figure 10 B-B profiles；
Figure 12 is the structural representation of 1Y shape joints of the embodiment of the present invention；
Figure 12 a are Figure 12 left views；
Figure 12 b are Figure 12 top views；
Figure 13 is the structural representation of 1L shape joints of the embodiment of the present invention；
Figure 13 a are Figure 13 right views；
Figure 13 b are Figure 13 upward views；
Figure 14 is the structural representation of the embodiment of the present invention 2；
Figure 15 is Figure 14 right view；
Figure 16 is the laryngeal mask component structure diagram of the embodiment of the present invention 2；
Figure 16 a are Figure 16 C portions enlarged drawings；
Figure 17 is Figure 16 top view；
Figure 17 a are the external gas sampling joint structural representations of the embodiment of the present invention 2；
Figure 18 is the L-type joint design schematic diagram of the embodiment of the present invention 2；
Figure 18 a are Figure 18 right views；
Figure 18 b are Figure 18 upward views；
Figure 19 is the structural representation of 2Y shape joints of the embodiment of the present invention；
Figure 19 a are Figure 19 left views；
Figure 19 b are Figure 19 top views；
Figure 20 is the structural representation of the embodiment of the present invention 3；
Figure 21 is Figure 20 right view；
Figure 22 is the structural representation of the breathing circuit filter of the embodiment of the present invention 3；
Figure 22 a are Figure 22 left views；
Figure 22 b are Figure 22 C-C sectional views；
Figure 22 c are Figure 22 D direction views；
Figure 22 d are Figure 22 E direction views；
Figure 23 is the structural representation of the embodiment of the present invention 4；
Figure 24 is Figure 23 right view；
Figure 25 is the structural representation of the filter of the embodiment of the present invention 4；
Figure 25 a are Figure 25 side views；
Figure 25 b are Figure 25 D-D sectional views；
Figure 25 c are Figure 25 F direction views；
Figure 25 d are Figure 25 G direction views.
In figure：1st, laryngeal mask component；1-1, cover body；1-2, laryngeal mask snorkel；1-2A, expiration chamber；1-2B, suction muffler；1-2C、
Gas sampling chamber；1-3, inflating catheter；1-4, laryngeal mask airway pipe joint；1-5, charge valve；
2nd, breathing circuit filter；2-1, the first housing；2-2, machine end；2-3, patient end；2-4, gas sampling joint；2-5、
Gas sampling chamber；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, gas sampling chamber；4-6, the 3rd filter core；4-7, 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,
Fig. 1-Figure 13 b, the classic laryngeal mask respiratory system of zero dead space, including laryngeal mask component 1, L-shaped joint 3, Y shape is referred to connect
First 4 and Anesthesia machine connecting tube 7, laryngeal mask component includes cover body 1-1, the laryngeal mask snorkel 1-2 that is connected with cover body, is connected with cover body
Inflating catheter 1-3 and charge valve 1-5, the laryngeal mask component connect L-shaped joint by laryngeal mask airway pipe joint 1-4, and the L-shaped connects
Head connection connection wye, the connection wye connect Anesthesia machine connecting tube, and the cross sectional shape of the laryngeal mask snorkel is oblate, institute
State and three chambers are provided with laryngeal mask snorkel, the L-shaped joint is three-cavity structure, and the connection wye is that three chambers are provided with it
Demountable.
In the present embodiment, the laryngeal mask snorkel 1-2 of the laryngeal mask component is provided with three chambers, respectively expiration chamber 1-2A, inhales
Air cavity 1-2B and gas sampling chamber 1-2C, one end of the gas sampling chamber are located between inflatable cuff and the breather pipe of cover body
Position, described suction muffler one end correspond to the glottis upper bit of patient, and described expiration chamber one end corresponds to the glottis upper bit of patient,
The L-shaped joint and connection wye are equipped with three chambers corresponding with laryngeal mask snorkel difference.
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 patient
3-2 is held, three-cavity structure corresponding with each chamber of laryngeal mask snorkel, respectively expiration chamber 1-1A, suction muffler 1- are provided with L-shaped joint 3
1B and gas sampling chamber 1-1C.
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 gas sampling joint 4-7 connected with gas sampling chamber 4-5 is connected with side, the 3rd filter core 4-6 is housed in gas sampling intracavitary.
The gas sampling joint 4- being connected with gas sampling chamber 1-2C is provided with the present embodiment, on the outside of the connection wye
7, the laryngeal mask snorkel connects the L-shaped joint of three chambers by joint, and the L-shaped joint of three chamber connects the connection wye of three chambers,
The three chambers connection wye connects Anesthesia machine connecting tube.
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, the expiration chamber 1-2A of laryngeal mask snorkel, suction muffler 1-2B, gas sampling
Joint 4-7 is connected by three chamber L-shaped joints, three chamber connection wyes and Anesthesia machine connecting tube 7 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 core
The gas sampling joint 4-7 of connection wye realize.
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 Figure 14-Figure 19 b, the classic laryngeal mask respiratory system of zero dead space, including laryngeal mask component 1, L-shaped joint 3, Y shape
Joint 4 and Anesthesia machine connecting tube 7, laryngeal mask component connect including cover body 1-1, the laryngeal mask snorkel 1-2 being connected with cover body, with cover body
Inflating catheter 1-3 and charge valve 1-5, the laryngeal mask component pass through laryngeal mask airway pipe joint 1-4 connect L-shaped joint, the L-shaped
Joint connects connection wye, and the connection wye connects Anesthesia machine connecting tube, and the cross sectional shape of the laryngeal mask snorkel is oblateness,
Three chambers are provided with the laryngeal mask snorkel, the L-shaped joint is double cavity structure, and the connection wye is to be provided with two chambers in it
Demountable.
In the present embodiment, the laryngeal mask snorkel of the laryngeal mask component is provided with three chambers for one section close to cover body, respectively exhales
Chamber 1-2A, suction muffler 1-2B and gas sampling chamber 1-2C, one end of the gas sampling chamber are located at the inflatable cuff of cover body with leading to
Position between tracheae, described suction muffler 1-2B one end correspond to the glottis upper bit of patient, and described expiration chamber 1-2A one end is corresponding
In the glottis upper bit of patient, the gas sampling chamber other end is connected with external gas sampler 6, the external gas sampling
Pipe connects external gas sampling joint 5 by joint；The laryngeal mask snorkel is two-chamber close to one section of L-shaped joint, is respectively
Expiration chamber 1-2A and suction muffler 1-2B, the laryngeal mask snorkel connect two-chamber L-shaped joint 3, the two-chamber L-shaped joint by joint
Connect two-chamber connection wye 4, the two-chamber connection wye connection Anesthesia machine connecting tube 7.
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 patient
3-2 is held, double cavity structure corresponding with each chamber of laryngeal mask snorkel, respectively expiration chamber 1-2A and suction muffler 1- are provided with L-shaped joint 3
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.
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 3,
Refer to Figure 20-Figure 22 d, including laryngeal mask component 1, breathing circuit filter 2, L-shaped joint 3, connection wye 4 and Anesthesia machine
Connecting tube 7, the laryngeal mask component includes cover body 1-1, the laryngeal mask snorkel 1-2 being connected with cover body, the inflation that is connected with cover body are led
Pipe 1-3 and charge valve 1-5, the laryngeal mask component connects breathing circuit filter 2 by laryngeal mask airway pipe joint 1-4, described to breathe
Filter connects L-shaped joint, and the L-shaped joint connects connection wye, and the connection wye connects Anesthesia machine connecting tube.The laryngeal mask leads to
The cross sectional shape of tracheae is oblateness, and the laryngeal mask snorkel is interior, and at least provided with two chambers, the L-shaped joint is double cavity structure,
Two chambers are provided with the breathing circuit filter and connection wye.
In the present embodiment, the laryngeal mask snorkel of the laryngeal mask component is provided with three chambers, respectively expiration chamber 1-2A, suction muffler
1-2B and gas sampling chamber 1-2C, one end of the gas sampling chamber are located at position between the inflatable cuff of cover body and breather pipe,
Described suction muffler one end corresponds to the glottis upper bit of patient, and described expiration chamber one end corresponds to the glottis upper bit of patient.Institute
To state in breathing circuit filter 2 and be provided with three chambers corresponding with laryngeal mask snorkel, the L-shaped joint and connection wye are double cavity structure,
Breathing circuit filter is provided with the gas sampling joint 2-4 being connected with gas sampling chamber.The laryngeal mask snorkel is connected by joint
Breathing circuit filter, the breathing circuit filter connect two-chamber L-shaped joint, and the two-chamber L-shaped joint connects two-chamber connection wye, described
Two-chamber connection wye connects Anesthesia machine connecting tube.
In the present embodiment, breathing circuit filter 2 includes the first housing 2-1, and machine end 2-2 is provided with the first shell one end, the
The one 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,
One housing mid-section position is provided with suction gas filtration chamber 2-6, exhaled gas filter chamber 2-7 and gas sampling chamber 2-5, the suction
The first filter core 2-8 is equipped with gas filtration chamber 2-6, exhaled gas filter chamber 2-7 and gas sampling chamber 2-5.The first shell
The affixed gas sampling joint 2-4 of body upper outside, the gas sampling joint connect with gas sampling chamber.
In the present embodiment, the L-shaped joint is identical with the L-shaped joint design of embodiment 2.
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 sampling joint connection on device.From on patient's glottis, expiration chamber 1-2A, suction muffler 1-2B and the gas of laryngeal mask snorkel
Sampling cavity 1-2C is connected by breathing circuit filter 2, L-shaped joint, connection wye and Anesthesia machine connecting tube 7 with Anesthesia machine, is not present
Share 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 form loop in each respiratory.Gas sampling is provided with by the gas sampling chamber 1-2C in laryngeal mask snorkel, in it
First 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.
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 4,
Refer to Figure 23-Figure 25 d, including laryngeal mask component 1, breathing circuit filter 2, L-shaped joint 3, connection wye 4 and Anesthesia machine
Connecting tube 7, the laryngeal mask component includes cover body 1-1, the laryngeal mask snorkel 1-2 being connected with cover body, the inflation that is connected with cover body are led
Pipe 1-3 and charge valve 1-5, the laryngeal mask component connects breathing circuit filter 2 by laryngeal mask airway pipe joint 1-4, described to breathe
Filter connects L-shaped joint, and the L-shaped joint connects connection wye, and the connection wye connects Anesthesia machine connecting tube.The laryngeal mask leads to
The cross sectional shape of tracheae is oblateness, and the laryngeal mask snorkel is interior, and at least provided with two chambers, the L-shaped joint is double cavity structure,
Two chambers are provided with the breathing circuit filter and connection wye.
In the present embodiment, the laryngeal mask snorkel of the laryngeal mask component 1 is provided with three chambers for one section close to cover body, respectively exhales
Chamber 1-2A, suction muffler 1-2B and gas sampling chamber 1-2C, one end of the gas sampling chamber are located at the inflatable cuff of cover body with leading to
Position between tracheae, described suction muffler one end correspond to the glottis upper bit of patient, and described expiration chamber one end corresponds to patient's
Glottis upper bit.The gas sampling chamber other end is connected with external gas sampler, and the external gas sampler is by connecing
Head connects external gas sampling joint 5；The laryngeal mask snorkel is double cavity structure close to one section of breathing circuit filter, is respectively exhaled
Air cavity 1-2A and suction muffler 1-2B.The laryngeal mask snorkel connects breathing circuit filter 2, the breathing circuit filter connection by joint
Two-chamber L-shaped joint, the two-chamber L-shaped joint connect two-chamber connection wye, and the two-chamber connection wye connects Anesthesia machine connecting tube.
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 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.
In the present embodiment, the L-shaped joint is identical with the L-shaped joint design of embodiment 2.
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 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.
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 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 (9)
- A kind of 1. classic laryngeal mask respiratory system of zero dead space, it is characterised in that：Including laryngeal mask component, L-shaped joint, detachable Y Shape joint and Anesthesia machine connecting tube, laryngeal mask component include cover body, the laryngeal mask snorkel being connected with cover body, the inflation connected with cover body Conduit and charge valve, the laryngeal mask component are connect by laryngeal mask snorkel fittings L-shaped joint, the L-shaped joint connection Y shape Head, the connection wye connect Anesthesia machine connecting tube, and the cross sectional shape of the laryngeal mask snorkel is oblate, the laryngeal mask airway At least provided with two chambers in pipe, the L-shaped joint be two-chamber or three-cavity structure, and the connection wye is interior at least provided with two chambers Demountable.
- 2. the classic laryngeal mask respiratory system of zero dead space according to claim 1, it is characterised in that：The larynx of the laryngeal mask component Cover breather pipe is provided with three chambers, respectively suction muffler, expiration chamber and gas sampling chamber, and one end of the gas sampling chamber is positioned at cover Position between the inflatable cuff and breather pipe of body, described suction muffler one end correspond to the glottis upper bit of patient, the expiration chamber One end corresponds to the glottis upper bit of patient, and the L-shaped joint and connection wye are equipped with and laryngeal mask snorkel difference corresponding three Individual chamber, the connection wye outside are provided with the gas sampling joint being connected with gas sampling chamber, and the laryngeal mask snorkel is by connecing The L-shaped joint of head three chambers of connection, the L-shaped joint of three chamber connect the connection wye of three chambers, the connection wye connection of three chamber Anesthesia machine connecting tube；One end of the L-shaped joint is the interface end that is connected with connection wye, and the other end is patient end, is provided with L-shaped joint and larynx Three-cavity structure corresponding to each chamber of cover breather pipe, respectively expiration chamber, suction muffler and gas sampling chamber；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, the gas connected with gas sampling chamber is connected with the outside of connection wye Sampling joint, the 3rd filter core is housed in gas sampling intracavitary.
- 3. the classic laryngeal mask respiratory system of zero dead space according to claim 1, it is characterised in that：The larynx of the laryngeal mask component Cover breather pipe is provided with three chambers, respectively suction muffler, expiration chamber and gas sampling chamber, the gas sampling chamber for one section close to cover body One end be located at position between the inflatable cuff of cover body and breather pipe, described suction muffler one end corresponds to the glottis top of patient Position, described expiration chamber one end correspond to the glottis upper bit of patient, and the gas sampling chamber other end is connected with external gas and adopted Sample pipe, the external gas sampler connect external gas sampling joint by joint；The laryngeal mask snorkel is close to L-shaped joint One section be two-chamber, respectively suction muffler and expiration chamber, the laryngeal mask snorkel connects two-chamber L-shaped joint by joint, described Two-chamber L-shaped joint connects two-chamber connection wye, and the two-chamber connection wye connects Anesthesia machine connecting tube；One end of the L-shaped joint is the interface end that is connected with connection wye, and the other end is patient end, is provided with L-shaped joint and larynx Double cavity structure corresponding to each chamber of cover breather pipe, respectively expiration chamber and suction muffler；One end of the connection wye is patient interface end, and the other end is respectively Anesthesia machine output end and anesthesia machine input terminal, in fiber crops The second filter core is provided with liquor-saturated machine output end and anesthesia machine input terminal.
- 4. the classic laryngeal mask respiratory system of zero dead space according to claim 3, 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, and the 4th filter core, institute are housed in second shell body State the 3rd shell one end and be connected with input end connector, the second housing other end is connected with output end connector.
- A kind of 5. classic laryngeal mask respiratory system of zero dead space, it is characterised in that：Connect including laryngeal mask component, breathing circuit filter, L-shaped Head, connection wye and Anesthesia machine connecting tube, laryngeal mask component includes cover body, the laryngeal mask snorkel that is connected with cover body, is connected with cover body Inflating catheter and charge valve, the laryngeal mask component connect breathing circuit filter by laryngeal mask snorkel, and the breathing circuit filter connects L Shape joint, the L-shaped joint connect connection wye, and the connection wye connects Anesthesia machine connecting tube, and the laryngeal mask snorkel is cut Face is shaped as oblateness, and at least provided with two chambers in the laryngeal mask snorkel, the L-shaped joint is two-chamber or three-cavity structure, institute State in breathing circuit filter and connection wye at least provided with two chambers.
- 6. the classic laryngeal mask respiratory system of zero dead space according to claim 5, it is characterised in that：The larynx of the laryngeal mask component Cover breather pipe is provided with three chambers, respectively suction muffler, expiration chamber and gas sampling chamber, and one end of the gas sampling chamber is positioned at cover Position between the inflatable cuff and breather pipe of body, described suction muffler one end correspond to the glottis upper bit of patient, the expiration chamber One end corresponds to the glottis upper bit of patient, and three chambers corresponding with laryngeal mask snorkel, the L are provided with the breathing circuit filter Shape joint and connection wye are double cavity structure, and the gas sampling joint being connected with gas sampling chamber is provided with breathing circuit filter；Institute State laryngeal mask snorkel and breathing circuit filter is connected by joint, the breathing circuit filter connects two-chamber L-shaped joint, the two-chamber L-shaped Joint connects two-chamber connection wye, and the two-chamber connection wye connects Anesthesia machine connecting tube.
- 7. the classic laryngeal mask respiratory system of zero dead space according to claim 6, it is characterised in that：The breathing circuit filter bag The first housing is included, machine end is provided with the first shell one end, the first housing other end is provided with patient end, in first housing Between position be more than machine end and patient end, suction gas filtration chamber, exhaled gas filter chamber are provided with the first housing middle part With gas sampling chamber, suction gas filtration chamber, exhaled gas filter chamber and the gas sampling intracavitary are equipped with the first filter core 2- 8, the affixed gas sampling joint of the first housing upper outside, the gas sampling joint connects with gas sampling chamber.
- 8. the classic laryngeal mask respiratory system of zero dead space according to claim 5, it is characterised in that：The larynx of the laryngeal mask component Cover breather pipe is provided with three chambers, respectively suction muffler, expiration chamber and gas sampling chamber, the gas sampling chamber for one section close to cover body One end be located at position between the inflatable cuff of cover body and breather pipe, described suction muffler one end corresponds to the glottis top of patient Position, described expiration chamber one end correspond to the glottis upper bit of patient, and the gas sampling chamber other end is connected with external gas and adopted Sample pipe, the external gas sampler connect external gas sampling joint by joint；The laryngeal mask snorkel is close to be breathed One section of filter is double cavity structure, respectively suction muffler and expiration chamber, and the laryngeal mask snorkel connects breath by joint Device, the breathing circuit filter connect two-chamber L-shaped joint, and the two-chamber L-shaped joint connects two-chamber connection wye, and the two-chamber Y shape connects Head connection Anesthesia machine connecting tube.
- 9. the classic laryngeal mask respiratory system of zero dead space according to claim 8, it is characterised in that：The breathing circuit filter bag The first housing is included, machine end is provided with the first shell one end, the first housing other end is provided with patient end, in first housing Between position be more than machine end and patient end, suction gas filtration chamber, exhaled gas filter chamber are provided with the first housing middle part With gas sampling chamber, described suck in gas filtration chamber and exhaled gas filter chamber is equipped with the first filter core.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711223364.6A CN107823767A (en) | 2017-11-29 | 2017-11-29 | The classic laryngeal mask respiratory system of zero dead space |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711223364.6A CN107823767A (en) | 2017-11-29 | 2017-11-29 | The classic laryngeal mask respiratory system of zero dead space |
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| CN107823767A true CN107823767A (en) | 2018-03-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113164701A (en) * | 2018-12-06 | 2021-07-23 | 奇斯药制品公司 | Laryngeal mask airway device and method of administering a drug through a laryngeal mask airway device |
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| TW200533399A (en) * | 2004-02-12 | 2005-10-16 | Atsuo F Fukunaga | Multifunctional integrated filter and breathing conduit |
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Effective date of registration: 20191029 Address after: 300210 305-306, No. 11, lixinli, Lishui, Hexi District, Tianjin Applicant after: Yang Ming Address before: 300350, No. 24, Keda Road, TEDA (Jinnan) microelectronic industry zone, Tianjin, Jinnan Applicant before: Tianjin Plastics Research Institute Co.,Ltd. Applicant before: Yang Ming |
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