CN209751855U - Gas purification device for anesthesia department - Google Patents
Gas purification device for anesthesia department Download PDFInfo
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- CN209751855U CN209751855U CN201822261216.XU CN201822261216U CN209751855U CN 209751855 U CN209751855 U CN 209751855U CN 201822261216 U CN201822261216 U CN 201822261216U CN 209751855 U CN209751855 U CN 209751855U
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Abstract
The utility model discloses a gas purification device for anesthesia department relates to the medical instrument field. The utility model comprises a base; a partition board is vertically arranged in the middle of the upper surface of the base, surrounding plates are vertically arranged on the upper surface of the base at two sides of the partition board respectively, and a supporting plate is horizontally arranged on the side surface of one surrounding plate; the upper surface of the supporting plate is provided with two first limiting seats, a second limiting seat and a gas compressor, and an anesthetic gas storage tank and an oxygen storage tank are respectively installed on the two first limiting seats in a clamping mode; a gas liquefaction storage tank is clamped on the second limiting seat. The utility model provides a contain particulate matter such as dust in the anesthetic gas of patient incoming call, the anesthetic gas temperature is low excessively, and the anesthetic composition that contains in the gas of exhalation does not carry out effectual purification treatment, causes the problem of threat to operation in-process medical personnel's work, the problem of low and inconvenient removal of automatic control level.
Description
Technical Field
the utility model belongs to the field of medical equipment, especially, relate to a gas purification device for department of anesthesia.
Background
The anesthesia discipline is a comprehensive discipline and contains knowledge of many disciplines. The existing range is wider, the requirement of the operation is not only met, but also the rescue work of all departments is participated in, and the like; the anesthesia can relieve the pain of a patient in the operation, and the current anesthesia technology comprises surface anesthesia and gas anesthesia, and the anesthesia is carried out by an eye dropping method, a nasal coating method, a throat and trachea spraying method and a urethra pouring method.
At present, the anesthetic used in the anesthesia department is generally used for general or local anesthesia of a patient by isoflurane group, enflurane group and the like, the isoflurane group and the enflurane group have the characteristics of low boiling point and easy solubility in organic solvents, the use of the isoflurane group and the enflurane group can reduce the operation pain of the patient, but the patient inhales anesthetic gas into the body through an anesthetic mask or a breathing mask, the anesthetic gas can not be completely absorbed and can diffuse into an operating room or external air, threatens and influences medical staff, and particles such as dust and the like can be annularly doped in anesthetic gas inhaled by a patient, the potential safety hazard of respiratory tract is generated to the patient, the anesthetic gas is generally mixed with the oxygen and supplied to the patient for absorption, the gas temperature in the transmission process is lower, the phenomenon of uneven mixing of the oxygen and the anesthetic gas exists, therefore, it is important to provide a gas purification apparatus for anesthesia department to solve the above problems.
Disclosure of Invention
The utility model aims to provide a gas purification device for department of anesthesia, through providing a gas hardcover device which is separated by a baffle and is provided with a patient gas purification structure of admitting air and a patient gas purification structure of exhaling air, the gas purification structure of admitting air comprises a first gas purification chamber provided with an ultraviolet germicidal lamp and an air heating rod, a second gas purification chamber provided with an ultraviolet germicidal lamp, an active carbon filter screen layer and a dust adsorption filter screen, the gas purification structure of exhaling air comprises a third gas purification chamber provided with a condensation tank and a condensate recovery box, a fourth gas purification chamber provided with a first organic solvent, a fifth gas purification chamber provided with a second organic solvent, and finally the exhaling air is pressed into a gas liquefaction storage tank or exhausted outside air through a gas compressor, thereby solving the problem that the narcosis gas which is inhaled by the patient contains particles such as dust, the temperature of the anesthetic gas is too low, the anesthetic-containing components in the exhaled gas are not effectively purified, and the problems of threat to the work of medical staff in the operation process, low automation control level and inconvenient movement are solved.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
The utility model relates to a gas purification device for anesthesia department, which comprises a base;
a partition board is vertically arranged in the middle of the upper surface of the base, surrounding plates are vertically arranged on the upper surface of the base at two sides of the partition board respectively, and a supporting plate is horizontally arranged on the side surface of one of the surrounding plates;
The upper surface of the supporting plate is provided with two first limiting seats, a second limiting seat and a gas compressor, and an anesthetic gas storage tank and an oxygen storage tank are respectively installed on the two first limiting seats in a clamping mode; a gas liquefaction storage tank is clamped on the second limiting seat and connected with a gas compressor through an L-shaped connecting pipe; the top of the anesthetic gas storage tank is provided with a first electromagnetic valve, the top of the oxygen storage tank is provided with a second electromagnetic valve, the first electromagnetic valve is connected with a first gas pipe, the second electromagnetic valve is connected with a second gas pipe, and the first gas pipe and the second gas pipe respectively penetrate through the enclosing plate and extend out; one end of the first gas pipe and one end of the second gas pipe are communicated with a collecting pipe;
A first gas purification chamber and a second gas purification chamber are sequentially arranged on the upper surface of the base on one side of the partition plate; one end of the collecting pipe is communicated with the first gas purifying chamber, and the first gas purifying chamber is communicated with the second gas purifying chamber through a first connecting pipe; the side wall of the second gas purification chamber is communicated with a first gas outlet pipe, one end of the first gas outlet pipe penetrates through the surrounding plate to extend out, and one end of the first gas outlet pipe is connected with the anaesthetic mask;
a third gas purification chamber, a fourth gas purification chamber and a fifth gas purification chamber are sequentially arranged on the upper surface of the base on the other side of the partition plate; a third gas pipe is communicated with the side wall of the third gas purification chamber, one end of the third gas pipe is communicated with a gas outlet of the anaesthetic mask, the other end of the third gas pipe penetrates through the coaming and is communicated with the third gas purification chamber, the third gas purification chamber is communicated with the fourth gas purification chamber through a second L-shaped connecting pipe, and the fourth gas purification chamber is communicated with the fifth gas purification chamber through a Z-shaped connecting pipe; and the side wall of the fifth gas purification chamber is communicated with a second gas outlet pipe, one end of the second gas outlet pipe is connected with a first gas outlet branch pipe and a second gas outlet branch pipe, one end of the second gas outlet branch pipe is connected with a gas compressor, and a gas outlet of the first gas outlet branch pipe is communicated with outside air.
Furthermore, a plurality of first ultraviolet germicidal lamps are arranged on the inner top wall of the first gas purification chamber, and a plurality of heating rods are arranged on one inner side wall of the first gas purification chamber; the inner bottom surface of the first gas purification chamber is provided with a first fan, the other inner side wall of the first gas purification chamber is provided with a second fan, and a wind direction port of the second fan is right opposite to a pipe port of the first connecting pipe.
furthermore, a plurality of second ultraviolet germicidal lamps are arranged on the inner top wall of the second gas purification chamber, and a dust adsorption filter screen and a plurality of activated carbon filter screen layers are vertically arranged between the two inner side walls of the second gas purification chamber.
furthermore, the inner peripheral side wall of the third gas purification chamber is provided with a condensation groove, the inner bottom surface of the third gas purification chamber is provided with a through hole, and the bottom of the base is provided with a condensate recovery box communicated with the through hole.
Furthermore, a first organic solvent liquid is loaded in the fourth gas purification chamber, and one end of the second L-shaped connecting pipe extends into the first organic solvent liquid.
Furthermore, a second organic solvent liquid is loaded in the fifth gas purification chamber, and one end of the Z-shaped connecting pipe extends into the second organic solvent liquid.
furthermore, a third electromagnetic valve is installed on the first air outlet branch pipe, and a fourth electromagnetic valve is installed on the second air outlet branch pipe.
Furthermore, a display screen and a control button group are arranged on the outer side face of one enclosing plate.
Furthermore, a plurality of universal moving wheels are respectively installed at the bottoms of the base and the supporting plate.
the utility model discloses following beneficial effect has:
The utility model provides a gas hardcover device which is separated by a clapboard and is provided with a patient gas-in purification structure and a patient gas-out purification structure, the gas-in purification structure comprises a first gas purification chamber provided with an ultraviolet sterilizing lamp and an air heating rod, a second gas purification chamber provided with an ultraviolet sterilizing lamp, an active carbon filter screen layer and a dust adsorption filter screen, the gas-out purification structure comprises a third gas purification chamber provided with a condensation tank and a condensate recovery box, a fourth gas purification chamber provided with a first organic solvent, a fifth gas purification chamber provided with a second organic solvent, and finally the gas-out is pressed into a gas liquefaction storage tank or discharged outside air through a gas compressor, the gas-in purification device has the functions of efficient particulate matter filtration and temperature heating treatment of the gas-in the patient, the gas-out of the patient is efficiently collected and condensed and recovered, and dissolve through the solvent, finally compress the gas that has anesthetic composition of expired and retrieve or discharge outdoor, reduced patient's expired gas and led to the fact the threat for medical personnel, automated control is competent, moves convenient advantage.
of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
in order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a gas purification device for anesthesia department of the present invention.
Fig. 2 is a schematic view of the structure at view angle a in fig. 1.
Fig. 3 is a front view of the structure of fig. 1.
Fig. 4 is a front view of the structure of fig. 2.
Fig. 5 is a right side view of the structure of fig. 2.
Fig. 6 is a top view of the structure of fig. 2.
In the drawings, the components represented by the respective reference numerals are listed below:
1-base, 101-coaming, 102-clapboard, 103-display screen, 104-control button group, 105-universal moving wheel, 2-support plate, 201-first limit seat, 202-second limit seat, 203-anesthetic gas storage tank, 2031-first gas pipe, 2032-first electromagnetic valve, 204-oxygen storage tank, 2041-second gas pipe, 2042-second electromagnetic valve, 205-gas liquefaction storage tank, 2051-L-shaped connecting pipe, 206-gas compressor, 2061-second gas outlet branch pipe, 2062-fourth electromagnetic valve, 3-first gas purification chamber, 301-collecting pipe, 302-first ultraviolet sterilizing lamp, 303-second fan, 304-heating rod, 305-first fan, 4-second gas purification chamber, 401-a first connecting pipe, 402-a second ultraviolet germicidal lamp, 403-a first air outlet pipe, 404-an active carbon filter screen layer, 405-a dust adsorption filter screen, 5-a third gas purification chamber, 501-a condensate recovery tank, 5011-a through hole, 502-a condensation tank, 503-a third air delivery pipe, 6-a fourth gas purification chamber, 601-a second L-shaped connecting pipe, 602-a Z-shaped connecting pipe, 7-a fifth gas purification chamber, 701-a first air outlet branch pipe, 702-a third electromagnetic valve and 703-a second air outlet pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper surface", "two sides", "vertical", "intermediate position", "bottom", "top", and the like, indicate orientations or positional relationships for convenience of description, and to simplify the description, but do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Referring to fig. 1-6, the gas purifying device for anesthesia department of the present invention comprises a base 1;
A partition plate 102 is vertically arranged in the middle of the upper surface of the base 1, surrounding plates 101 are vertically arranged on the upper surface of the base 1 at two sides of the partition plate 102 respectively, and a supporting plate 2 is horizontally arranged on the side surface of one surrounding plate 101;
The upper surface of the supporting plate 2 is provided with two first limiting seats 201, a second limiting seat 202 and a gas compressor 206, and an anesthetic gas storage tank 203 and an oxygen storage tank 204 are respectively clamped and mounted on the two first limiting seats 201; a gas liquefaction storage tank 205 is clamped on the second limiting seat 202, and the gas liquefaction storage tank 205 is connected with a gas compressor 206 through an L-shaped connecting pipe 2051; a first electromagnetic valve 2032 is arranged at the top of the anesthetic gas storage tank 203, a second electromagnetic valve 2042 is arranged at the top of the oxygen storage tank 204, a first gas transmission pipe 2031 is connected to the first electromagnetic valve 2032, a second gas transmission pipe 2041 is connected to the second electromagnetic valve 2042, and the first gas transmission pipe 2031 and the second gas transmission pipe 2041 respectively penetrate through the enclosing plate 101 to extend out; one end of the first air delivery conduit 2031 and one end of the second air delivery conduit 2041 are communicated with a collecting conduit 301;
A first gas purification chamber 3 and a second gas purification chamber 4 are sequentially arranged on the upper surface of the base 1 on one side of the partition plate 102; one end of the collecting pipe 301 is communicated with the first gas purification chamber 3, and the first gas purification chamber 3 is communicated with the second gas purification chamber 4 through a first connecting pipe 401; a first air outlet pipe 403 is communicated with the side wall of the second gas purification chamber 4, one end of the first air outlet pipe 403 penetrates through the coaming 101 to extend out, and one end of the first air outlet pipe 403 is connected with the anaesthetic mask;
the upper surface of the base 1 positioned at the other side of the partition plate 102 is sequentially provided with a third gas purification chamber 5, a fourth gas purification chamber 6 and a fifth gas purification chamber 7; a third gas pipe 503 is communicated with the side wall of the third gas purification chamber 5, one end of the third gas pipe 503 is communicated with the gas outlet of the anaesthetic mask, the other end of the third gas pipe 503 penetrates through the coaming 101 and is communicated with the third gas purification chamber 5, the third gas purification chamber 5 is communicated with the fourth gas purification chamber 6 through a second L-shaped connecting pipe 601, and the fourth gas purification chamber 6 is communicated with the fifth gas purification chamber 7 through a Z-shaped connecting pipe 602; the side wall of the fifth gas purification chamber 7 is communicated with a second gas outlet pipe 703, one end of the second gas outlet pipe 703 is connected with a first gas outlet branch pipe 701 and a second gas outlet branch pipe 2061, one end of the second gas outlet branch pipe 2061 is connected with the gas compressor 206, and the gas outlet of the first gas outlet branch pipe 701 is communicated with the outside air.
Wherein, the inner top wall of the first gas purification chamber 3 is provided with four first ultraviolet germicidal lamps 302, and one inner side wall of the first gas purification chamber 3 is provided with seven heating rods 304; the inner bottom surface of the first gas purification chamber 3 is provided with a first fan 305, the other inner side wall of the first gas purification chamber 3 is provided with a second fan 303, and the wind direction opening of the second fan 303 is opposite to the pipe opening of the first connecting pipe 401.
Wherein, the inner top wall of the second gas purification chamber 4 is provided with three second ultraviolet germicidal lamps 402, and a dust adsorption filter screen 405 and three active carbon filter screen layers 404 are vertically arranged between two inner side walls of the second gas purification chamber 4.
Wherein, the inner peripheral side wall of the third gas purification chamber 5 is provided with a condensation groove 502, the inner bottom surface of the third gas purification chamber 5 is provided with a through hole 5011, and the bottom of the base 1 is provided with a condensate recovery tank 501 communicated with the through hole 5011.
Wherein, the fourth gas purification chamber 6 is loaded with the first organic solvent liquid, and one end of the second L-shaped connection pipe 601 extends into the first organic solvent liquid.
wherein, the fifth gas purification chamber 7 is loaded with the second organic solvent liquid, and one end of the Z-shaped connection pipe 602 extends into the second organic solvent liquid.
A third electromagnetic valve 702 is installed on the first gas outlet branch pipe 701, and a fourth electromagnetic valve 2062 is installed on the second gas outlet branch pipe 2061.
Wherein, a display screen 103 and a control button group 104 are arranged on the outer side surface of a coaming 101.
Wherein, four and two universal moving wheels 105 are respectively installed at the bottom of the base 1 and the supporting plate 2.
Has the advantages that:
The utility model provides a gas hardcover device which is separated by a clapboard and is provided with a patient gas-in purification structure and a patient gas-out purification structure, the gas-in purification structure comprises a first gas purification chamber provided with an ultraviolet sterilizing lamp and an air heating rod, a second gas purification chamber provided with an ultraviolet sterilizing lamp, an active carbon filter screen layer and a dust adsorption filter screen, the gas-out purification structure comprises a third gas purification chamber provided with a condensation tank and a condensate recovery box, a fourth gas purification chamber provided with a first organic solvent, a fifth gas purification chamber provided with a second organic solvent, and finally the gas-out is pressed into a gas liquefaction storage tank or discharged outside air through a gas compressor, the gas-in purification device has the functions of efficient particulate matter filtration and temperature heating treatment of the gas-in the patient, the gas-out of the patient is efficiently collected and condensed and recovered, and dissolve through the solvent, finally compress the gas that has anesthetic composition of expired and retrieve or discharge outdoor, reduced patient's expired gas and led to the fact the threat for medical personnel, automated control is competent, moves convenient advantage.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. A gas purification device for anesthesia department is characterized by comprising a base (1);
A partition plate (102) is vertically arranged in the middle of the upper surface of the base (1), enclosing plates (101) are vertically arranged on the two sides of the partition plate (102) of the upper surface of the base (1), and a supporting plate (2) is horizontally arranged on the side surface of one enclosing plate (101);
The upper surface of the supporting plate (2) is provided with two first limiting seats (201), a second limiting seat (202) and a gas compressor (206), and an anesthetic gas storage tank (203) and an oxygen storage tank (204) are respectively clamped and mounted on the two first limiting seats (201); a gas liquefaction storage tank (205) is clamped on the second limiting seat (202), and the gas liquefaction storage tank (205) is connected with a gas compressor (206) through an L-shaped connecting pipe (2051); a first electromagnetic valve (2032) is arranged at the top of the anesthetic gas storage tank (203), a second electromagnetic valve (2042) is arranged at the top of the oxygen storage tank (204), a first gas transmission pipe (2031) is connected to the first electromagnetic valve (2032), a second gas transmission pipe (2041) is connected to the second electromagnetic valve (2042), and the first gas transmission pipe (2031) and the second gas transmission pipe (2041) respectively penetrate through the enclosing plate (101) to extend out; one end of the first air conveying pipe (2031) and one end of the second air conveying pipe (2041) are communicated with a collecting pipe (301);
a first gas purification chamber (3) and a second gas purification chamber (4) are sequentially arranged on the upper surface of the base (1) on one side of the partition plate (102); one end of the collecting pipe (301) is communicated with the first gas purifying chamber (3), and the first gas purifying chamber (3) is communicated with the second gas purifying chamber (4) through a first connecting pipe (401); a first air outlet pipe (403) is communicated with the side wall of the second gas purification chamber (4), one end of the first air outlet pipe (403) penetrates through the enclosing plate (101) to extend out, and one end of the first air outlet pipe (403) is connected with an anaesthetic mask;
The upper surface of the base (1) positioned at the other side of the partition plate (102) is sequentially provided with a third gas purification chamber (5), a fourth gas purification chamber (6) and a fifth gas purification chamber (7); the side wall of the third gas purification chamber (5) is communicated with a third gas pipe (503), one end of the third gas pipe (503) is communicated with a gas outlet of the anaesthetic mask, the other end of the third gas pipe (503) penetrates through the enclosing plate (101) and is communicated with the third gas purification chamber (5), the third gas purification chamber (5) is communicated with the fourth gas purification chamber (6) through a second L-shaped connecting pipe (601), and the fourth gas purification chamber (6) is communicated with the fifth gas purification chamber (7) through a Z-shaped connecting pipe (602); the side wall of the fifth gas purification chamber (7) is communicated with a second gas outlet pipe (703), one end of the second gas outlet pipe (703) is connected with a first gas outlet branch pipe (701) and a second gas outlet branch pipe (2061), one end of the second gas outlet branch pipe (2061) is connected with the gas compressor (206), and a gas outlet of the first gas outlet branch pipe (701) is communicated with outside air.
2. The gas purification apparatus for anesthesia department as claimed in claim 1, wherein said first gas purification chamber (3) is provided with a plurality of first ultraviolet germicidal lamps (302) on its inner top wall, and said first gas purification chamber (3) is provided with a plurality of heating rods (304) on its inner side wall; the inner bottom surface of the first gas purification chamber (3) is provided with a first fan (305), the other inner side wall of the first gas purification chamber (3) is provided with a second fan (303), and a wind direction opening of the second fan (303) is opposite to a pipe opening of the first connecting pipe (401).
3. the gas purification apparatus for anesthesia department as claimed in claim 1, wherein said second gas purification chamber (4) is provided with a plurality of second uv germicidal lamps (402) on the inner top wall, and a dust adsorbing filter screen (405) and a plurality of activated carbon filter screen layers (404) are vertically arranged between two opposite inner side walls of said second gas purification chamber (4).
4. The gas purification apparatus for anesthesia department as claimed in claim 1, wherein the inner peripheral sidewall of said third gas purification chamber (5) is provided with a condensation tank (502), the inner bottom surface of said third gas purification chamber (5) is provided with a through hole (5011), and the bottom of said base (1) is provided with a condensate recovery tank (501) communicating with said through hole (5011).
5. the gas purification apparatus for anesthesia department as claimed in claim 1, wherein said fourth gas purification chamber (6) is loaded with a first organic solvent liquid, and one end of said second L-shaped connection pipe (601) is extended into said first organic solvent liquid.
6. The gas purification apparatus for anesthesia department as claimed in claim 1, wherein said fifth gas purification chamber (7) is loaded with a second organic solvent liquid, and one end of said Z-shaped connection pipe (602) is extended into said second organic solvent liquid.
7. The gas purification apparatus for anesthesia department as claimed in claim 1, wherein said first outlet branch pipe (701) is installed with a third electromagnetic valve (702), and said second outlet branch pipe (2061) is installed with a fourth electromagnetic valve (2062).
8. The gas purification device for anesthesia department as claimed in claim 1, wherein a display screen (103) and a control button set (104) are provided on the outer side of said enclosure (101).
9. the gas purification apparatus for anesthesia department as claimed in claim 1, wherein a plurality of universal moving wheels (105) are respectively installed at the bottom of said base (1) and said supporting plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822261216.XU CN209751855U (en) | 2018-12-30 | 2018-12-30 | Gas purification device for anesthesia department |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822261216.XU CN209751855U (en) | 2018-12-30 | 2018-12-30 | Gas purification device for anesthesia department |
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| Publication Number | Publication Date |
|---|---|
| CN209751855U true CN209751855U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822261216.XU Expired - Fee Related CN209751855U (en) | 2018-12-30 | 2018-12-30 | Gas purification device for anesthesia department |
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| CN (1) | CN209751855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114504893A (en) * | 2022-01-28 | 2022-05-17 | 河南大学第一附属医院 | Anesthesia exhaust emission processing apparatus |
-
2018
- 2018-12-30 CN CN201822261216.XU patent/CN209751855U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114504893A (en) * | 2022-01-28 | 2022-05-17 | 河南大学第一附属医院 | Anesthesia exhaust emission processing apparatus |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191210 Termination date: 20201230 |
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| CF01 | Termination of patent right due to non-payment of annual fee |