CN112190805B - Department of anesthesia laryngeal mask with intelligence is admitted air - Google Patents
Department of anesthesia laryngeal mask with intelligence is admitted air Download PDFInfo
- Publication number
- CN112190805B CN112190805B CN202011225202.8A CN202011225202A CN112190805B CN 112190805 B CN112190805 B CN 112190805B CN 202011225202 A CN202011225202 A CN 202011225202A CN 112190805 B CN112190805 B CN 112190805B
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- Prior art keywords
- air
- air inlet
- channel
- inlet channel
- mask
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- 206010002091 Anaesthesia Diseases 0.000 title claims abstract description 12
- 230000037005 anaesthesia Effects 0.000 title claims abstract description 12
- 230000008859 change Effects 0.000 claims abstract description 14
- 238000010586 diagram Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000004877 mucosa Anatomy 0.000 description 1
- 210000003097 mucus Anatomy 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
Images
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
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
-
- A61M1/0023—
-
- 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
- A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
Landscapes
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention discloses an anesthesia department laryngeal mask with intelligent air inlet, which comprises a mask body and a mask tube, wherein an air inlet control device is arranged on the mask tube and used for controlling air inlet flow of the mask tube into the mask body, the air inlet control device comprises a stop block, the stop block forms a first air inlet channel and a second air inlet channel in the mask tube, the first air inlet channel is communicated with the second air inlet channel, the sectional area of the second air inlet channel is smaller than that of the first air inlet channel, the air flow entering the mask body through the mask tube needs to sequentially pass through the first air inlet channel and the second air inlet channel, a sliding sheet is arranged in the first air inlet channel, an air passing hole is formed in the sliding sheet, a sliding groove is formed in the side wall of the first air inlet channel, the edge of the sliding sheet is positioned in the sliding groove, and the sliding sheet can move in the sliding groove to change the size of the air passing hole positioned.
Description
Technical Field
The invention relates to the field of anesthesia department.
Background
The laryngeal mask is successfully developed and used in clinic in the middle of 80 years, and is introduced in 90 years in China. The application of the laryngeal mask is greatly developed at present, and the application range is wider and wider.
The laryngeal mask has many advantages of (1) simple use and rapid establishment of artificial airway; (2) the success rate of placing is high, the success rate of untrained medical care personnel is 87%, the assembly power is 99.81%, and (3) the ventilation is reliable; (4) avoid the injury of throat and tracheal mucosa; (5) small stimulation and small cardiovascular reaction; (6) can be used for emergency treatment.
The air inflow of the existing laryngeal mask is difficult to control accurately, the ventilation is unstable, and manual approach adjustment is sometimes needed.
Disclosure of Invention
The invention aims to disclose an anesthesia department laryngeal mask with intelligent air inlet, which comprises a mask body, a mask pipe, an air inlet pipe and a drainage pipe, wherein the mask pipe supplies air to the mask body, the air inlet pipe inflates the mask body, the drainage pipe is connected with the mask body and conducts drainage, and the laryngeal mask is characterized in that an air inlet control device is arranged on the mask pipe to control the air inlet flow of the mask pipe to the mask body, the air inlet control device comprises a stop block, the stop block forms a first air inlet channel and a second air inlet channel in the mask pipe, the first air inlet channel is communicated with the second air inlet channel, the sectional area of the second air inlet channel is smaller than that of the first air inlet channel, the air flow entering the mask body through the mask pipe needs to sequentially pass through the first air inlet channel and the second air inlet channel, a sliding sheet is arranged in the first air inlet channel, an air passing hole is arranged on the sliding sheet, a sliding groove is arranged on the side wall, the sliding piece can move in the sliding groove to change the size of the air passing hole positioned in the first air inlet channel, an air pressure channel is arranged in the stop block, one end of the air pressure channel extends to the second air inlet channel, the other end of the air pressure channel extends into the sliding groove, a first pull rod is arranged at one end of the sliding piece, a first piston positioned in the air pressure channel is arranged at the tail end of the first pull rod, a second pull rod is arranged at the other end of the sliding piece, a second piston is arranged at the tail end of the second pull rod, an air pressure control unit is arranged in the stop block, and the air pressure control unit can control the air pressure on the end part of the second piston so that the air pressure on the end part can keep a constant state; the gas flow rate of the second gas inlet channel changes, so that the gas pressure in the gas pressure channel changes, the first piston moves to drive the sliding sheet to move, and the sliding sheet moves to change the size of the gas hole in the first gas inlet channel so as to inhibit the change of the gas flow rate of the second gas inlet channel. The pneumatic control unit comprises a control cavity, a second piston is located in the control cavity, the second piston divides the control cavity into a first part and a second part, the second piston can move in the control cavity to change the volume of the first part and the volume of the second part, the first part is communicated with the outside, when the second piston moves, the pneumatic pressure of the second part can be fixed, the second piston is connected with an abutting rod located in the second part, and when the pneumatic pressure of the second part is smaller than that of the first part, the abutting rod can prevent the second piston from moving towards the second part. The second part is connected with an air pressure sensor, the air pressure sensor is connected with a controller, the second part is connected with a first air pipe communicated with the outside, an air pump is installed on the first air pipe, the controller controls the air pump according to data of the air pressure sensor, and the air pressure of the second part is further kept to be a set value. The shape of the air passing hole is circular or oval. The control cavity is communicated with the sliding groove through a second pull rod channel, and the second pull rod penetrates through the channel. A first pull rod channel is arranged between the air pressure channel and the sliding groove, the first pull rod is located in the first pull rod channel, the sectional area of the first pull rod is smaller than that of the first piston, and the first piston cannot pass through the first pull rod channel.
Drawings
Figure 1 is a schematic diagram of a laryngeal mask construction;
FIG. 2 is a schematic view of an intake manifold;
FIG. 3 is a schematic view of an air bag;
FIG. 4 is a schematic view of an elbow;
FIG. 5 is a schematic diagram of an intake air control device;
FIG. 6 is a schematic view of one end of a slider;
FIG. 7 is a schematic view of the other end of the slider;
FIG. 8 is a cross-sectional view of the stop;
FIG. 9 is a schematic view of a sliding channel;
FIG. 10 is a schematic view of a slider
FIG. 11 is a schematic view of a sliding channel;
the labels in the figure are: 10-mask body, 11-air inlet, 12-close face, 13-mask cavity, 14-cavity, 15-air bag, 16-opening, 17-elbow, 18-tube wall cavity, 20-mask tube, 21-connecting tube, 30-air inlet tube, 40-drainage tube, 41-drainage port, 50-air inlet control device, 51-stop, 52-first air inlet channel, 53-second air inlet channel, 54-air pressure channel, 55-sliding sheet, 551-first pull rod, 552-first piston, 553-second pull rod, 554-second piston, 555-touch rod, 556-air vent, 56-air pressure control unit, 561-control cavity, 562-controller, 563-first air tube, 564-air pump, 565-second air tube, 57-sliding groove.
Detailed Description
As shown in fig. 1-11, this embodiment discloses a department of anesthesia laryngeal mask with intelligence is admitted air, including the cover body 10, cover pipe 20, intake pipe 30, drainage tube 40, cover pipe is to the cover body air feed, and the intake pipe is aerifyd the cover body, drainage tube and cover body coupling and drainage, the drainage tube extend to the inside of the cover body, the end that the drainage tube is located the cover body is the drainage mouth, the drainage tube be used for the drainage, intake pipe 30 extends to the inside of the cover body, the end that the intake pipe is located the cover body is air inlet 11, the intake pipe is used for carrying out air transportation to the human body, the cover body 10 is connected with intake pipe 30, the intake pipe is to the internal gas transmission of cover.
In the embodiment of the present invention, as shown in fig. 1, the cover tube is provided with an intake control device 50 to control the intake airflow of the cover tube 20 into the cover body 10, specifically, the intake airflow can be set at a stable value, when the airflow is large, the intake control device can reduce the intake airflow, when the airflow is small, the intake control device can increase the intake airflow, the intake control device of the present invention has a mechanical structure, has no or few electrifying devices, reduces power consumption, and can be applied to a laryngeal mask.
As shown in fig. 5, the intake control device 50 includes a stopper 51, the stopper forms a first intake passage (52) and a second intake passage (53) in the cover tube 20, the first intake passage and the second intake passage are located at the middle position of the stopper, as shown in fig. 5, the first intake passage 52 and the second intake passage 53 are communicated, and the sectional area of the second intake passage 53 is smaller than that of the first intake passage (52), so that the flow velocity of the air flow is increased when the air flow passes through the second intake passage, and the detection accuracy is further improved. The air flow entering the enclosure 10 through the hood duct needs to pass through the first air intake passage 52 and the second air intake passage 53 in order.
A sliding sheet 55 is arranged in the first air inlet channel, an air passing hole 556 is arranged on the sliding sheet, a sliding groove 57 is arranged on the side wall of the first air inlet channel, the sliding groove is annularly distributed, the edge of the sliding sheet is positioned in the sliding groove, the sliding sheet can move in the sliding groove to change the size of the air passing hole located in the first air inlet channel, an air pressure channel 54 is arranged in the block 51, one end of the air pressure channel extends to the second air inlet channel 53, the other end extends into the sliding groove, one end of the sliding sheet is provided with a first pull rod 551, the tail end of the first pull rod is provided with a first piston 552 located in the air pressure channel 54, the other end of the sliding sheet is provided with a second pull rod 553, the tail end of the second pull rod is provided with a second piston 554, an air pressure control unit 56 is arranged in the block 51, the air pressure control unit can control the air pressure on the end part of the second piston, so that the air pressure on the end part keeps a constant state when the second piston moves; the gas flow rate through the second inlet channel changes, and then the gas pressure in the gas pressure channel 54 changes, and then the first piston moves to drive the sliding piece to move, and the sliding piece moves to change the size of the gas hole in the first inlet channel so as to restrain the change of the gas flow rate of the second inlet channel.
As shown in fig. 7, the pneumatic control unit 56 includes a control chamber 561, the second piston is located in the control chamber 561, the second piston divides the control chamber into a first portion and a second portion, as shown in fig. 7, the left side of the second piston is the first portion, and the right side of the second piston is the second portion. The second piston can move in the control chamber to change the volume of first portion and second portion, first portion and outside intercommunication, and when the second piston moved, the atmospheric pressure of second portion can be fixed, and the second piston is connected with and is located interference rod 555 in the second portion, and when the atmospheric pressure of second portion was less than first portion, interference rod 555 can prevent the second piston to move towards the direction of second portion. When the gas flow rate in the second gas inlet channel needs to be controlled to be larger, the gas pressure of the second part can be controlled to be a lower value at this time, the slide plate can move only by the lower gas pressure value in the gas pressure channel, and then the gas flow rate in the second gas pressure channel is controlled to be a larger value (the larger the gas flow rate in the second gas pressure channel is, the larger negative pressure is generated in the pressure-exceeding cavity). By the same token, the steady air flow in the second air pressure passage can be reduced by increasing the constant air pressure of the second portion.
In a preferred embodiment, the second portion is connected to an air pressure sensor, the air pressure sensor is connected to a controller 562, the second portion is connected to a first air pipe 563 connected to the outside, the first air pipe is provided with an air pump 564, the controller controls the air pump, and the controller controls the air pump according to data of the air pressure sensor, so as to further maintain the air pressure of the second portion at a set value. The shape of the air passing hole is circular or oval. The control chamber 561 communicates with the slide groove through a second rod passage through which the second rod passes. A first pull rod channel is arranged between the air pressure channel and the sliding groove, the first pull rod is located in the first pull rod channel, the sectional area of the first pull rod is smaller than that of the first piston, and the first piston cannot pass through the first pull rod channel. The invention can accurately control the air flow of the air inlet, thereby being beneficial to the normal breathing of the patient.
In a preferred implementation, as shown in fig. 2, the bottom of the cover body is covered with a close attaching surface 12, the close attaching surface and the cover body are made of rubber materials, a cavity 14 is enclosed between the close attaching surface and the bottom of the cover body, a plurality of air bags 15 are arranged in the cavity, two ends of each air bag are respectively connected with the close attaching surface and the bottom surface of the cover body to prop open the cavity to prevent the bottom surface of the cover body from being attached with the close attaching surface, a plurality of openings 16 are arranged on the close attaching surface 12 to communicate the cavity with the outside, a pipe wall cavity 18 is arranged in a position where the air inlet pipe 30 is connected with the cover body, the pipe wall cavity is attached with the inner side pipe wall of the air inlet pipe, the pipe wall cavity is communicated with the cavity 14, a bent pipe 17 is arranged in the air inlet pipe, one end of the bent pipe is communicated with the pipe wall cavity 18 of the air inlet pipe, the other end of the bent, an air inlet control device is arranged on the cover pipe. According to the invention, when the cover body is expanded by conveying gas to the cover body through the gas inlet pipe, negative pressure can be formed in the bent pipe 17 and the pipe wall cavity by the gas flow of the gas inlet pipe, negative pressure is further generated in the cavity, mucus at the throat cavity part can enter the cavity through the opening 16 due to the generated negative pressure, so that the close contact surface can be tightly attached to the throat cavity of a human body on one hand, and the close contact surface can be tightly attached to the bottom of the cover body on the other hand, the elastic action is realized between the close contact surface and the bottom of the cover body due to the volume change of the cavity, and the bottom surface and the close contact surface are bonded by the.
Claims (6)
1. A laryngeal mask with intelligent air inlet for anesthesia department comprises a mask body (10), a mask tube (20), an air inlet tube (30) and a drainage tube (40), wherein the mask tube supplies air to the mask body, the air inlet tube inflates the mask body, the drainage tube is connected with the mask body and conducts drainage, the laryngeal mask is characterized in that an air inlet control device (50) is installed on the mask tube to control the mask tube (20) to supply air flow into the mask body (10), the air inlet control device (50) comprises a stop block (51) which forms a first air inlet channel (52) and a second air inlet channel (53) in the mask tube (20), the first air inlet channel (52) is communicated with the second air inlet channel (53), the sectional area of the second air inlet channel (53) is smaller than that of the first air inlet channel (52), and the air flow entering the mask body (10) through the mask tube needs to sequentially pass through the first air inlet channel (52) and the second air inlet channel (53), a sliding sheet (55) is arranged in the first air inlet channel, an air hole (556) is arranged on the sliding sheet, a sliding groove (57) is arranged on the side wall of the first air inlet channel, the edge of the sliding sheet is positioned in the sliding groove, the sliding sheet can move in the sliding groove to change the size of the air hole positioned in the first air inlet channel, an air pressure channel (54) is arranged in the block (51), one end of the air pressure channel extends to the second air inlet channel (53), the other end of the air pressure channel extends into the sliding groove, a first pull rod (551) is arranged at one end of the sliding sheet, a first piston (552) positioned in the air pressure channel (54) is arranged at the tail end of the first pull rod, a second pull rod (553) is arranged at the other end of the sliding sheet, a second piston (554) is arranged at the tail end of the second pull rod, an air pressure control unit (56) is arranged in the block (51), and, the air pressure on the end part is kept in a constant state; the gas flow rate of the gas passing through the second gas inlet channel changes, so that the gas pressure in the gas pressure channel (54) changes, the first piston moves to drive the sliding sheet to move, and the sliding sheet moves to change the size of the gas passing hole in the first gas inlet channel so as to restrain the change of the gas flow rate of the second gas inlet channel.
2. The anesthesia department laryngeal mask with smart inlet of claim 1, wherein the pneumatic control unit (56) comprises a control chamber (561), the second piston is located in the control chamber (561), the second piston divides the control chamber into a first portion and a second portion, the second piston can move in the control chamber to change the volume of the first portion and the second portion, the first portion is communicated with the outside, when the second piston moves, the pneumatic pressure of the second portion can be fixed, the second piston is connected with an interference rod (555) located in the second portion, when the pneumatic pressure of the second portion is smaller than that of the first portion, the interference rod (555) can prevent the second piston from moving towards the second portion.
3. The anesthesia department laryngeal mask with intelligent air intake of claim 2, wherein the second part is connected with an air pressure sensor, the air pressure sensor is connected with a controller (562), the second part is connected with a first air pipe (563) communicated with the outside, the first air pipe is provided with an air pump (564), the controller controls the air pump, and the controller controls the air pump according to data of the air pressure sensor so as to further enable the air pressure of the second part to be kept at a set value.
4. The anesthesia department laryngeal mask with smart inlet of claim 3, wherein the through-air holes are circular or oval in shape.
5. The anesthesia department laryngeal mask with smart inlet of claim 4, wherein the control lumen (561) and the sliding slot communicate through a second pull rod channel through which the second pull rod passes.
6. The anesthesia department laryngeal mask with intelligent air intake of claim 5, wherein a first pull rod channel is provided between the air pressure channel and the sliding groove, the first pull rod is located in the first pull rod channel, the cross-sectional area of the first pull rod is smaller than that of the first piston, and the first piston cannot pass through the first pull rod channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011225202.8A CN112190805B (en) | 2020-11-05 | 2020-11-05 | Department of anesthesia laryngeal mask with intelligence is admitted air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011225202.8A CN112190805B (en) | 2020-11-05 | 2020-11-05 | Department of anesthesia laryngeal mask with intelligence is admitted air |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112190805A CN112190805A (en) | 2021-01-08 |
| CN112190805B true CN112190805B (en) | 2021-05-25 |
Family
ID=74033338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011225202.8A Expired - Fee Related CN112190805B (en) | 2020-11-05 | 2020-11-05 | Department of anesthesia laryngeal mask with intelligence is admitted air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112190805B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9622880D0 (en) * | 1996-11-02 | 1997-01-08 | Smiths Industries Plc | Laryngeal mask airways and thier manufacture |
| CN107606264B (en) * | 2017-08-30 | 2019-03-15 | 宁波景珍堂生物科技有限公司 | Medical air volume regulating device |
| CN209075778U (en) * | 2018-05-24 | 2019-07-09 | 四川大学华西第二医院 | A kind of tracheostomy catheter plugging cap |
| CN209679224U (en) * | 2018-12-26 | 2019-11-26 | 南通市第二人民医院 | A kind of artificial nose monitoring air humidity |
| CN211383288U (en) * | 2019-07-24 | 2020-09-01 | 浙江大学 | Safe adjustable airway blockage testing device |
| CN110624166A (en) * | 2019-10-28 | 2019-12-31 | 上海吉甫医疗科技有限公司 | Folding laryngeal mask structure |
-
2020
- 2020-11-05 CN CN202011225202.8A patent/CN112190805B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN112190805A (en) | 2021-01-08 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20210427 Address after: 273199 Room 207, Unit 4, Building 1, No. 3, Guide North Road, Qufu City, Jining City, Shandong Province Applicant after: Han Wei Address before: 210000 No. 200 Xiaolingwei street, Xuanwu District, Jiangsu, Nanjing Applicant before: Zhang Xingrong |
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