CN210873523U - Oxygen and carbon dioxide mixed oxygen inhalation device - Google Patents
Oxygen and carbon dioxide mixed oxygen inhalation device Download PDFInfo
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- CN210873523U CN210873523U CN201820928564.5U CN201820928564U CN210873523U CN 210873523 U CN210873523 U CN 210873523U CN 201820928564 U CN201820928564 U CN 201820928564U CN 210873523 U CN210873523 U CN 210873523U
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Abstract
An oxygen and carbon dioxide mixed oxygen inhalation device for the oxygen inhalation method is provided with a flexible hood capable of sealing the head of a patient in the oxygen inhalation device, wherein one side of the flexible hood is provided with an air inlet pipe, the air inlet pipe is provided with an oxygen supply flow regulating valve and an oxygen flow instrument, the other side of the flexible hood is provided with an exhaust pipe, and the exhaust pipe is provided with an exhaust balance valve; has the advantages of improving blood circulation and blood oxygen tension.
Description
Technical Field
The invention relates to the technical field of oxygen inhalation devices, in particular to an oxygen and carbon dioxide mixed oxygen inhalation method, an oxygen inhalation device and a using method thereof, which can improve blood circulation and blood oxygen tension.
Background
In the clinical development of treatment, many diseases need to be treated by oxygen, sometimes, a mask oxygen inhalation method is clinically needed to be adopted for a human body to obtain more oxygen, and particularly, a medical high-pressure oxygen cabin is adopted for patients to carry out oxygen inhalation treatment, so that the human body can obtain the blood oxygen tension which is ten times or even twenty times as high as the normal pressure in a very short time. However, this method mostly uses pure oxygen for treatment and mostly completes the oxygen inhalation process by carrying a mask to the patient. For example, an air-pressurized oxygen chamber is a typical device for patients to carry mask oxygen therapy in a high-pressure environment; in addition, the diving decompression chamber is used for decompression of divers and used for the diving disease treatment process, and the mask is used for breathing pure oxygen for human bodies, and the method can enable the human bodies to obtain the pure oxygen treatment effect. The high-purity oxygen can play an extremely remarkable curative effect in assisting clinical treatment of critical patients. At present, the method of clinically adopting a mask to breathe pure oxygen is also very popular, and particularly, the application of manned pressure vessels such as a medical air pressurization oxygen chamber, a diving decompression chamber and the like is particularly prominent or common. However, the mask can be used for breathing high-purity oxygen, and the therapeutic effect on chronic ischemia and hypoxia diseases is difficult to be achieved. It is known that when a person breathes high purity oxygen, the condition of the person can cause slow heartbeat, vasoconstriction and blood flow reduction, which is not favorable for treating patients with chronic ischemia and hypoxia diseases. When patients suffering from chronic ischemia and hypoxia diseases are clinically treated, firstly, the treatment conditions of improving blood circulation and increasing blood oxygen tension are established.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provide an oxygen and carbon dioxide mixed oxygen inhalation method and an oxygen inhalation device which can generate double treatment effects of improving blood circulation and blood oxygen tension.
The technical scheme adopted by the invention for solving the defects of the prior art is as follows:
a method for absorbing oxygen by mixing oxygen and carbon dioxide, which is characterized by comprising the following steps,
a. the head of the patient is arranged in the flexible hood, the flexible hood is in sealing fit with the skin at the neck of the patient at the neck, and the head is completely sealed in the flexible hood;
b. the oxygen supply flow is controlled by using an oxygen supply flow control valve, and oxygen is supplied into the flexible hood through the air inlet pipe;
c. discharging redundant gas in the hood outside the flexible hood through an exhaust pipeline of the flexible hood and an exhaust valve on the exhaust pipeline;
d. the concentration of carbon dioxide in the flexible head cover is controlled by the matching of the oxygen flow control valve and the exhaust valve, so that the concentration of the carbon dioxide in the flexible head cover is between 2% and 5%.
The invention controls the flow of oxygen supplied to the flexible hood through the oxygen supply flow control valve, and the opening degree of the valve is automatically adjusted by the exhaust valve according to the pressure in the flexible hood or the flow of oxygen supplied to the flexible hood.
The oxygen supply flow controlled by the oxygen supply flow control valve in the step b of the invention is equivalent to 8-30L/min under normal pressure.
An oxygen and carbon dioxide mixed oxygen inhalation device for the oxygen inhalation method is provided with a flexible hood capable of sealing the head of a patient in the oxygen inhalation device, wherein one side of the flexible hood is provided with an air inlet pipe, the air inlet pipe is provided with an oxygen supply flow regulating valve and an oxygen flow instrument, the other side of the flexible hood is provided with an exhaust pipe, and the exhaust pipe is provided with an exhaust balance valve; the structure of the exhaust balance valve is as follows: the air inlet and outlet device is provided with a silica gel air bag, the lower side of the silica gel air bag is provided with an air inlet and outlet, a four-bar linkage support is arranged in the silica gel air bag and comprises an upper hinge seat, a lower hinge seat, a left hinge seat and a right hinge seat, the left hinge seat and the right hinge seat are respectively and fixedly connected with the side wall of the middle part of the silica gel air bag, a connecting pipe is arranged on the air inlet and outlet, an air inlet interface is arranged on one side of the connecting pipe, the lower end of the connecting pipe is connected with an air valve box, a connecting guide pipe is arranged on the lower hinge seat, the lower end of the connecting pipe is connected with; an exhaust port is arranged on one side of the valve box, a mounting baffle plate is arranged in the valve box between the exhaust port and the lower end part of the connecting pipe, a guide mounting hole is formed in the mounting baffle plate at the position opposite to the exhaust port, a valve rod is arranged in the guide mounting hole, a valve seat capable of sealing the exhaust port is arranged at one end of the valve rod opposite to the exhaust port, and a sealing pressure spring is arranged on the valve rod between the valve seat and the mounting baffle plate; the lower end of the pull rod is provided with a connecting sheet, the connecting sheet is provided with a pulling sliding hole, and the valve rod penetrates into the pulling sliding hole. When the valve rod is horizontal, the exhaust port is sealed by the valve seat, the lower side surface of the valve rod is attached to the lower side part of the pulling slide hole, namely the diameter of the pulling slide hole is larger than that of the valve rod, and the valve rod can move radially in the pulling slide hole. The exhaust pipe is connected with an air inlet interface of the exhaust balance valve. When the silica gel gasbag is full of the inflation, deformation takes place for the four-bar linkage support, and the pull rod glides in connecting conduit, drives the connection piece and moves down, promotes valve rod and its junction and moves down, and the disk seat inclines on the gas vent, appears the exhaust gap between the two, and the balanced valve of exhaust is opened to discharge the unnecessary gas in the hood outside the hood. When the oxygen supply amount in the hood is increased or continuously increased, the opening angle of the exhaust balance valve is increased, and the gas in the hood with the amount equal to that of oxygen supply is always discharged out of the hood, so that the gas in the hood is always in a balance state with the air intake amount equal to that of exhaust amount.
The lower middle part of the front side of the flexible head cover is provided with a gas detection hole. An oxygen and/or carbon dioxide concentration detector can be connected to the detection hole and is used for detecting the concentration of oxygen or carbon dioxide in the flexible hood.
The flexible head cover is a film type transparent head cover, the flexible head cover comprises an upper flexible transparent head cover and a lower elastic neck cover, the flexible transparent head cover is made of a non-toxic transparent film material (a transparent silica gel film material), the elastic neck cover is made of a soft ultra-thin silica gel material, the elastic neck cover is an elastic conical cover, the lower end of the elastic neck cover can be tightly attached to the skin of the neck of a human body, and the head and the neck of the human body are sealed in the flexible transparent head cover. The human body directly breathes the air in the hood and directly disperses the exhaled air in the flexible hood. A circular injection molding ring is arranged between the flexible transparent head cover and the elastic neck cover so as to fixedly connect the flexible transparent head cover and the elastic neck cover.
The using method of the oxygen inhalation device comprises the following steps: under normal pressure (one standard atmospheric pressure), a patient wears a flexible hood (the flexible hood seals the head and the neck of the patient in the flexible hood, and the patient breathes gas in the flexible hood), an oxygen supply flow regulating valve is opened, a carbon dioxide concentration detector is used for detecting the concentration of carbon dioxide in the gas in the flexible hood, and the oxygen supply flow is changed by regulating the opening degree of the oxygen supply flow regulating valve, so that the concentration of carbon dioxide in the flexible hood is regulated; when the concentration of carbon dioxide in the flexible hood reaches a treatment required value and is stable, the flow value (the value) of oxygen supplied to the hood by the oxygen flow instrument is recorded as a relative calibration value; the treatment calibration value of the human body in the hyperbaric oxygen chamber during treatment is obtained according to the calibration value and the pressure in the hyperbaric oxygen chamber during treatment, and when the human body enters the hyperbaric oxygen chamber for oxygen inhalation treatment, the oxygen supply flow is adjusted through the oxygen supply flow adjusting valve, so that the value of the oxygen flow instrument is displayed as the treatment calibration value. The relative calibration value of the oxygen flow can be measured in advance and the treatment calibration value can be calculated according to different groups of people and different treatment schemes (the required carbon dioxide concentration and the pressure in the hyperbaric oxygen chamber), and the corresponding treatment calibration value measured in advance is selected for direct treatment according to the human body characteristics and the treatment schemes during use.
The ratio of the relative calibration value of the oxygen flow and the treatment calibration value of the oxygen flow in the invention is inversely proportional to the pressure in the hyperbaric oxygen chamber under normal pressure (one standard atmospheric pressure) and treatment, namely, the relative calibration value: treatment calibration = pressure in hyperbaric oxygen chamber during treatment: atmospheric pressure (one standard atmosphere).
When the mask is used, when a patient inhales, oxygen in the flexible mask is inhaled into the body, exhaled gas is dispersed in the mask, and the user can not feel breathing resistance completely; when the patient exhales, carbon dioxide and moisture in the exhaled air are mixed with oxygen entering the flexible hood, so that carbon dioxide in the hood does not need to be obtained from the outside. The water vapor in the human body exhaled air can be mixed with the oxygen in the flexible hood, so that the moisture of the raw materials for humidifying the oxygen is realized, and the moisture supplement from the outside is not needed. The oxygen flow is adjusted through the adjustment of the oxygen flow adjusting valve and the observation of the oxygen flow instrument according to the treatment calibration value of the oxygen flow, so that the carbon dioxide content in the flexible hood is controlled, and the carbon dioxide concentration in the flexible hood can be always kept in the treatment calibration value. When the gas in the flexible hood is excessive, the exhaust balance valve can automatically exhaust the excessive gas out of the flexible hood; the greater the flow of oxygen into the flexible hood, the greater the amount of carbon dioxide that the exhaust balance valve will exhaust from the flexible hood. The invention can control the concentration of carbon dioxide in the flexible hood according to the treatment calibration value. The invention can realize the double treatment functions of improving blood circulation and improving blood oxygen tension through carbon dioxide mixed oxygen, can quickly relieve the anoxic state in each tissue of the human body, and can avoid the improper state of reducing blood flow generated when the human body breathes pure oxygen. The invention can be used for manned pressure vessels such as air pressurization oxygen chambers, diving decompression chambers and the like, is used for the air pressurization oxygen chambers, and can play the therapeutic role of improving blood circulation and blood oxygen tension for chronic ischemic and anoxic diseases; the pressure reducing chamber is used for a diving decompression chamber, and can play a role in improving the blood circulation in a diver and promoting the nitrogen dissolved in the body to be rapidly discharged out of the body.
The invention is suitable for the treatment support under the condition that the chronic ischemia and hypoxia diseases need carbon dioxide mixed oxygen; the device is suitable for decompression support under the conditions of diving decompression and needing carbon dioxide mixed oxygen under the treatment state of diving decompression.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure of the exhaust balance valve of the present invention.
Detailed Description
A method for absorbing oxygen by mixing oxygen and carbon dioxide, which is characterized by comprising the following steps,
a. the head of the patient is arranged in the flexible hood, the flexible hood is in sealing fit with the skin at the neck of the patient at the neck, and the head is completely sealed in the flexible hood;
b. controlling oxygen supply flow by using an oxygen supply flow control valve, and supplying oxygen into one side of the flexible hood through an air inlet pipe, wherein the oxygen supply flow control valve controls the oxygen supply flow to be equivalent to 8-30L/min under normal pressure;
c. the redundant gas in the hood is discharged out of the flexible hood through the exhaust pipeline on the other side of the flexible hood and the exhaust valve on the exhaust pipeline;
d. the concentration of carbon dioxide in the flexible head cover is controlled by the matching of the oxygen flow control valve and the exhaust valve, so that the concentration of the carbon dioxide in the flexible head cover is between 2% and 5%.
The oxygen supply flow is controlled by controlling the oxygen supply flow control valve, the opening degree of the valve is automatically adjusted by the exhaust valve according to the pressure in the flexible head cover,
an oxygen and carbon dioxide mixed oxygen inhalation device for the oxygen inhalation method is provided with a flexible head cover 5 which can seal the head of a patient in the oxygen inhalation device, one side of the flexible head cover 5 is provided with an air inlet pipe 4, the air inlet pipe 4 is provided with an oxygen supply regulating valve 2 and an oxygen flow meter 3, the other side of the flexible head cover is provided with an exhaust pipe 6, and the exhaust pipe 6 is provided with an exhaust balance valve 7; the structure of the exhaust balance valve 7 is as follows: be equipped with and be and erect football-shaped silica gel gasbag 13, silica gel gasbag 13 is the elasticity gasbag that silica gel material made, silica gel gasbag downside is equipped with the air inlet and outlet, inside is equipped with the four-bar linkage support that is the rhombus, four-bar linkage support includes, four connecting rods, go up articulated seat 33, articulated seat 18 down, articulated seat 15 in a left side and right articulated seat 31, two left connecting rods are articulated with articulated seat in a left side, two connecting rods on right side are articulated with articulated seat in the right side, connecting rod 14 and the connecting rod 32 other end of right side top in the left side top are articulated in last articulated seat respectively, connecting rod 17 and the connecting rod 30 other end of right side below in the left side below are articulated seat with articulating down. The left hinged seat 15 and the right hinged seat 31 are respectively fixedly connected with two opposite left and right side walls of the middle part of a silica gel air bag (in the vertical direction), a longitudinal connecting pipe 20 is arranged on an air inlet and outlet, an air inlet interface 29 is arranged on one side of the connecting pipe 20, a valve box 21 is connected with the lower end part of the connecting pipe 20, the lower end of the connecting pipe 20 is positioned in the valve box 21, a connecting guide pipe 19 which penetrates through the middle part of the lower hinged seat 18 and is coaxial with the connecting pipe is vertically arranged on the middle part of the lower hinged seat, the lower end of the connecting guide pipe 19 is in threaded connection with the connecting pipe, a pull rod 16 capable of sliding up and down in the connecting guide pipe 19 is arranged in the connecting guide pipe 19, the upper end of the pull rod 16; an exhaust port 26 is arranged on one side of the valve box, a mounting baffle plate 23 is arranged in the valve box between the exhaust port 26 and the lower end part of the connecting pipe, a conical guide mounting hole with the diameter gradually reduced from the lower end of the connecting pipe to the exhaust port is arranged on the middle part of the mounting baffle plate 23 opposite to the exhaust port, a valve rod 28 which is in clearance fit with the guide mounting hole and is horizontally arranged is arranged in the guide mounting hole, a circular sheet-shaped valve seat 25 capable of sealing the exhaust port is arranged at one end of the valve rod 28 opposite to the exhaust port, and a sealing pressure spring 24 for pressing the valve seat on the exhaust port to seal the valve seat is arranged on the; the pull rod lower extreme is equipped with connection piece 22, is equipped with the pulling slide opening on the connection piece 22, and valve stem clearance fit wears to penetrate in the pulling slide opening, and when the valve stem was horizontal, the disk seat sealed the gas vent, and valve stem downside laminates with pulling slide opening downside part, and the diameter of pulling slide opening is greater than the diameter of valve stem promptly, and valve stem can be at the radial removal in the pulling slide opening. The exhaust pipe is connected with an air inlet interface of the exhaust balance valve. When the silica gel airbag is inflated and expanded, the four-bar support deforms, the pull rod slides downwards in the connecting guide pipe to drive the connecting piece to move downwards, the valve rod of the valve is pushed to move downwards to be connected with the connecting piece, the valve rod of the valve rotates around the lowest part of the valve seat, which is in contact with the valve box, to drive the valve seat to incline on the exhaust port, an exhaust gap is formed between the valve rod of the valve and the exhaust port, and the exhaust balance valve is opened, so that redundant gas in the hood is exhausted out of the; as can be seen from the figure, the valve box is provided with the exhaust seat 27, the exhaust seat 27 is conical, the exhaust port is arranged on the exhaust seat, the valve seat is attached to the small-diameter end of the conical exhaust seat, the exhaust port is sealed, and the valve seat is easier to rotate and open. When the oxygen supply amount in the hood is increased or continuously increased, the opening angle of the exhaust balance valve is increased, and the gas in the hood with the amount equal to that of oxygen supply is always discharged out of the hood, so that the gas in the hood is always in a balance state with the air intake amount equal to that of exhaust amount. The flexible head cover is characterized in that a gas detection hole 10 is formed in the lower middle of the front side of the flexible head cover, and a carbon dioxide concentration detector can be connected to the detection hole 10 and is used for detecting the concentration of oxygen or carbon dioxide in the flexible head cover. The flexible hood be the transparent hood of film type, flexible hood includes the flexible transparent hood on upper portion and the elasticity neck cover of lower part, the transparent hood of flexibility is made by nontoxic transparent film material (transparent silica gel film material), the elasticity neck cover is made by soft ultra-thin type silica gel material, the elasticity neck cover is for having elastic toper cover, elasticity neck cover lower extreme can paste tightly with the skin of human neck, seals human head neck portion in the transparent hood of flexibility. The human body directly breathes the air in the hood and directly disperses the exhaled air in the flexible hood. A circular injection molding ring 11 is arranged between the flexible transparent head cover and the elastic neck cover so as to fixedly connect the flexible transparent head cover and the elastic neck cover. An oxygen uniform distribution duct 9 surrounding the head is arranged in the flexible transparent hood, air outlet holes are uniformly distributed on the oxygen uniform distribution duct 9, an air inlet pipe is connected with the oxygen uniform distribution duct, and oxygen uniformly enters the flexible transparent hood. The flexible transparent hood is made of medical transparent films, a window 12 is arranged in front of the flexible transparent hood, and the window 12 is made of a film material which is thicker than other films, so that a patient can observe external conditions or read through the window conveniently.
The using method of the oxygen inhalation device comprises the following steps: the patient wears the flexible hood under normal pressure (one standard atmospheric pressure), the head and the neck of the patient are sealed in the flexible hood by the flexible hood, the patient breathes gas in the flexible hood, the oxygen supply regulating valve is opened, the carbon dioxide concentration of the gas in the flexible hood is detected by using the carbon dioxide concentration detector, the oxygen supply flow is changed by regulating the opening degree of the oxygen supply regulating valve, and therefore the carbon dioxide concentration in the flexible hood is regulated; when the concentration of carbon dioxide in the flexible head cover reaches the treatment requirement and is stable, recording the numerical value of the oxygen flow meter, wherein the numerical value is a relative calibration value; and when the hyperbaric oxygen chamber is used for treatment, the oxygen supply flow is regulated by the oxygen supply flow regulating valve, so that the value of the oxygen flow instrument is displayed as the treatment calibration value. The relative calibration value of the oxygen flow can be measured in advance and the treatment calibration value can be calculated according to different groups of people and different treatment schemes (the required carbon dioxide concentration and the pressure in the hyperbaric oxygen chamber), and the corresponding treatment calibration value measured in advance is selected for direct treatment according to the human body characteristics and the treatment schemes during use.
The ratio of the relative calibration value of the oxygen flow and the treatment calibration value of the oxygen flow in the invention is inversely proportional to the pressure in the hyperbaric oxygen chamber under normal pressure (one standard atmospheric pressure) and treatment, namely, the relative calibration value: treatment calibration = pressure in hyperbaric oxygen chamber during treatment: atmospheric pressure (one standard atmosphere). The treatment calibration value of the oxygen flow is obtained according to the above.
When the mask is used, when a patient inhales, oxygen in the flexible mask is inhaled into the body, exhaled gas is dispersed in the mask, and the user can not feel breathing resistance completely; when the patient exhales, carbon dioxide and moisture in the exhaled air are mixed with oxygen entering the flexible hood, so that carbon dioxide in the hood does not need to be obtained from the outside. The water vapor in the human body exhaled air can be mixed with the oxygen in the flexible hood, so that the moisture of the raw materials for humidifying the oxygen is realized, and the moisture supplement from the outside is not needed. The oxygen flow is adjusted through the oxygen supply adjusting valve and the observation of the oxygen flow instrument according to the treatment calibration value of the oxygen flow, so that the content of carbon dioxide in the flexible hood is controlled, and the concentration of the carbon dioxide can be always kept in the index required by clinical medical treatment. When excessive gas is in the flexible hood, the excessive gas is automatically discharged through the exhaust balance valve; the greater the amount of oxygen supplied to the flexible hood, the greater the amount of carbon dioxide discharged by the exhaust balance valve. The invention can control the oxygen concentration and the carbon dioxide concentration in the flexible hood according to the requirement. The invention can realize the dual treatment effects of improving blood circulation and improving blood oxygen tension. Can rapidly relieve anoxia of human body tissues, and avoid improper blood flow reduction state caused by pure oxygen breathing. The invention can be used for manned pressure vessels such as air pressurization oxygen chambers, diving decompression chambers and the like, is used for the air pressurization oxygen chambers, and can play the therapeutic role of improving blood circulation and blood oxygen tension for chronic ischemic and anoxic diseases; the pressure reducing chamber is used for a diving decompression chamber, and can play a role in improving the blood circulation in a diver and promoting the nitrogen dissolved in the body to be rapidly discharged out of the body.
The invention is suitable for the treatment support under the condition that the chronic ischemia and hypoxia diseases need carbon dioxide mixed oxygen; the device is suitable for decompression support under the conditions of diving decompression and needing carbon dioxide mixed oxygen under the treatment state of diving decompression.
Claims (3)
1. An oxygen and carbon dioxide mixed oxygen inhalation device is characterized by being provided with a flexible hood capable of sealing the head of a patient in the oxygen and carbon dioxide mixed oxygen inhalation device, wherein one side of the flexible hood is provided with an air inlet pipe, the air inlet pipe is provided with an oxygen supply flow regulating valve and an oxygen flow instrument, the other side of the flexible hood is provided with an exhaust pipe, and the exhaust pipe is provided with an exhaust balance valve; the structure of the exhaust balance valve is as follows: the air inlet and outlet device is provided with a silica gel air bag, the lower side of the silica gel air bag is provided with an air inlet and outlet, a four-bar linkage support is arranged in the silica gel air bag and comprises an upper hinge seat, a lower hinge seat, a left hinge seat and a right hinge seat, the left hinge seat and the right hinge seat are respectively and fixedly connected with the side wall of the middle part of the silica gel air bag, a connecting pipe is arranged on the air inlet and outlet, an air inlet interface is arranged on one side of the connecting pipe, the lower end of the connecting pipe is connected with an air valve box, a connecting guide pipe is arranged on the lower hinge seat, the lower end of the connecting pipe is connected with; an exhaust port is arranged on one side of the valve box, a mounting baffle plate is arranged in the valve box between the exhaust port and the lower end part of the connecting pipe, a guide mounting hole is formed in the mounting baffle plate at the position opposite to the exhaust port, a valve rod is arranged in the guide mounting hole, a valve seat capable of sealing the exhaust port is arranged at one end of the valve rod opposite to the exhaust port, and a sealing pressure spring is arranged on the valve rod between the valve seat and the mounting baffle plate; the lower end of the pull rod is provided with a connecting sheet, the connecting sheet is provided with a pulling sliding hole, and the valve rod penetrates into the pulling sliding hole.
2. The oxygen and carbon dioxide mixed oxygen inhalation device of claim 1, wherein the lower middle part of the front side of the flexible hood is provided with a gas detection hole.
3. The oxygen and carbon dioxide mixed oxygen inhalation device according to claim 1 or 2, wherein the flexible head cover is a film-type transparent head cover, the flexible head cover comprises an upper flexible transparent head cover and a lower elastic neck cover, the flexible transparent head cover is made of a non-toxic transparent film material, the elastic neck cover is made of a soft ultra-thin silica gel material, the elastic neck cover is an elastic conical cover, the lower end of the elastic neck cover can be tightly attached to the skin of the neck of a human body, and the head and neck of the human body are sealed in the flexible transparent head cover.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820928564.5U CN210873523U (en) | 2018-06-15 | 2018-06-15 | Oxygen and carbon dioxide mixed oxygen inhalation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820928564.5U CN210873523U (en) | 2018-06-15 | 2018-06-15 | Oxygen and carbon dioxide mixed oxygen inhalation device |
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| CN210873523U true CN210873523U (en) | 2020-06-30 |
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| CN201820928564.5U Expired - Fee Related CN210873523U (en) | 2018-06-15 | 2018-06-15 | Oxygen and carbon dioxide mixed oxygen inhalation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108785812A (en) * | 2018-06-15 | 2018-11-13 | 威海威高海盛医用设备有限公司 | A kind of oxygen, carbon dioxide mix ways of oxygen inhalation, inhalation device and its application method |
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2018
- 2018-06-15 CN CN201820928564.5U patent/CN210873523U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108785812A (en) * | 2018-06-15 | 2018-11-13 | 威海威高海盛医用设备有限公司 | A kind of oxygen, carbon dioxide mix ways of oxygen inhalation, inhalation device and its application method |
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Granted publication date: 20200630 Termination date: 20210615 |