CN113144360A - Anesthetic gas recovery device for anesthesia machine - Google Patents
Anesthetic gas recovery device for anesthesia machine Download PDFInfo
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- CN113144360A CN113144360A CN202110448487.XA CN202110448487A CN113144360A CN 113144360 A CN113144360 A CN 113144360A CN 202110448487 A CN202110448487 A CN 202110448487A CN 113144360 A CN113144360 A CN 113144360A
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- 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
- A61M16/0087—Environmental safety or protection means, e.g. preventing explosion
- A61M16/009—Removing used or expired gases or anaesthetic vapours
- A61M16/0093—Removing used or expired gases or anaesthetic vapours by adsorption, absorption or filtration
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- 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
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- Anesthesiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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Abstract
The invention discloses an anesthetic gas recovery device for an anesthesia machine, which comprises a bottom plate, wherein the upper surface of the bottom plate is fixedly connected with a box body, the inner wall of the bottom of the box body is fixedly connected with a filter box, the upper surface of the filter box is fixedly connected with a stepping motor, the output end of the stepping motor is fixedly connected with a stirring shaft, the outer side surface of the bottom end of the stirring shaft is provided with a rotating rod, and the outer end of the rotating rod is provided with a rotating cylinder. Through utilizing step motor to drive the (mixing) shaft and then make a rotation section of thick bamboo and the sponge that absorbs water rotate, absorb the steam in the anesthetic gas of retrieving, make gaseous drier, it is better to make the filter effect, gaseous filters through double-deck active carbon adsorption board, make gaseous inside impurity carry out the edulcoration and retrieve, it is better to make gaseous edulcoration effect, the lid is opened to the active carbon adsorption board accessible simultaneously and is changed, the difficult step-down of efficiency that makes the active carbon adsorption board is favorable to the long-time use of active carbon adsorption board.
Description
Technical Field
The invention belongs to the technical field of gas recovery equipment of an anesthesia machine, and particularly relates to an anesthesia gas recovery device for the anesthesia machine.
Background
Anesthesia as a medical treatment has been increasingly recognized and practiced by the medical community. Therefore, high-tech support is provided for anesthesia techniques. One of them is an anesthesia machine. The book of anesthesia machine provides the structure of anesthesia machine for the medical students as the audio-visual teaching material of the variety and the medical department of health of the national key voice publishing and planning, which comprises the basic components of anesthesia machine, the additional part of anesthesia machine, the safety device of anesthesia machine and the using method of anesthesia machine which is prepared and checked before use and takes general anesthesia as an example. The local film is suitable for anesthesia professionals and students and clinicians to learn and use.
When the existing anesthesia machine is used, the anesthesia gas can not be completely absorbed by a patient when being discharged, so that the gas leaks, certain influence is caused to the external environment, and even the surrounding environment is polluted.
Disclosure of Invention
In view of the above, the present invention provides an anesthetic gas recovery apparatus for an anesthesia machine, which can effectively solve the above problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: an anesthetic gas recovery device for an anesthesia machine comprises a bottom plate, wherein the upper surface of the bottom plate is fixedly connected with a box body, the bottom inner wall of the box body is fixedly connected with a filter box, the upper surface of the filter box is fixedly connected with a stepping motor, the output end of the stepping motor is fixedly connected with a stirring shaft, the bottom outer side surface of the stirring shaft is provided with a rotating rod, the outer end of the rotating rod is provided with a rotating cylinder, the front inner wall and the rear inner wall of the filter box are fixedly connected with a guide rail and an active carbon adsorption plate, the left side wall of the box body is provided with a cover body and is movably connected with the active carbon adsorption plate, the bottom inner wall of the box body is fixedly connected with a purification box at the right side of the filter box, the lower end of the purification box is fixedly connected with a drain pipe and extends to the inside of the bottom plate, the right side inner wall of the box is fixedly connected with a detection box, and the left and right inner walls of the detection box are movably connected with a rolling mechanism, the gas detector of rear side inner wall fixed connection of detection case, the last fixed surface of detection case is connected with the circulating pipe, the right side inner wall of box and the below that is located the detection case are equipped with the drying cabinet, the inside air discharge fan that is equipped with of right side wall of box, be equipped with the blast pipe between detection case and the drying cabinet and be connected.
Further, the lower surface of the bottom plate is fixedly connected with a fixing frame, the inner wall of the fixing frame is provided with a collecting box, the outer wall of the left side of the collecting box is fixedly connected with a drain pipe, the drain pipe is fixedly connected with the collecting box, and a first electromagnetic valve is arranged inside the drain pipe.
Further, the lower surface of bottom plate and the outside that is located fixed frame are equipped with the supporting leg, the lower extreme fixedly connected with base of supporting leg, department is equipped with the gyro wheel through the minor axis in the middle of the lower extreme of base.
Furthermore, the inner wall of the rotating cylinder is provided with a water-absorbing sponge, and a through hole is formed in the rotating cylinder.
Furthermore, the other end of the circulating pipe is fixedly connected with the filter box, and a second electromagnetic valve is arranged inside the circulating pipe.
Further, the last fixed surface of box is connected with anesthesia machine and oxygen cylinder, the last fixed surface of anesthesia machine is connected with the operation panel, the upper surface of box and the right side that is located the oxygen cylinder are equipped with the liquid reserve tank, the upper surface of liquid reserve tank is equipped with into liquid fill, the left side outer wall fixedly connected with feed liquor pipe of liquid reserve tank, and the other end and purifying box fixed connection, the left side inner wall fixedly connected with level gauge of purifying box.
Further, be equipped with the connecting pipe between rose box and the purifying box and be connected, the connecting pipe extends to the inside of purifying box, and the top of connecting pipe is equipped with the filter core, the outside surface of connecting pipe is equipped with the heating pipe, be equipped with communicating pipe between purifying box and the detection case and be connected.
Further, the inside fixedly connected with intake pipe of the left side wall of box extends to the inside of rose box, the left end of intake pipe is equipped with the breather pipe, and the junction is equipped with the thread bush.
Further, the front side surface of the box body is provided with a fixing mechanism, the fixing mechanism comprises a fixing sleeve and a fixing plate, the fixing sleeve is fixedly connected with the box body, the inner wall of the fixing sleeve is provided with a fixing rod, the lower surface of the fixing rod is provided with a fastening spring, and the fixing rod is fixedly connected with the fixing plate.
Compared with the prior art, the invention has the beneficial effects that:
(1) through utilizing step motor to drive the (mixing) shaft and then make and rotate a section of thick bamboo and the sponge that absorbs water rotates, absorb the steam in the anesthetic gas of retrieving, make gas drier, it is better to make the filter effect, it filters through double-deck activated carbon adsorption board, make gaseous inside impurity carry out the edulcoration and retrieve, it is better to make gaseous edulcoration effect, the lid is opened to the activated carbon adsorption board accessible simultaneously and is changed, make the difficult step-down of efficiency of activated carbon adsorption board, be favorable to using for a long time of activated carbon adsorption board, utilize the circulating pipe simultaneously, make gas can carry out filtration purification operation once more, make gaseous edulcoration more thorough, accord with emission standard.
(2) Waste water is collected by the collecting box, waste water is prevented from being directly drained, waste water is favorably recycled, waste water is convenient to concentrate for one-time treatment, and the working efficiency is higher.
(3) Through making waste gas through liquid purification back, the impure gas in the waste gas absorbs more fully, and the reaction is more thorough, is favorable to discharging fast, improves gas recovery's efficiency, utilizes the level gauge simultaneously, and the use amount of the control liquid of being convenient for is favorable to the rational utilization purifying liquid, avoids extravagant.
Drawings
FIG. 1 is a schematic structural view of an anesthetic gas recovery apparatus for an anesthesia machine according to the present invention;
FIG. 2 is a front view of a rotary cylinder of an anesthetic gas recovery apparatus for an anesthesia machine according to the present invention;
FIG. 3 is a side view of an activated carbon adsorption plate of an anesthetic gas recovery apparatus for an anesthesia machine according to the present invention;
FIG. 4 is an enlarged view of the anesthetic gas recovery device for an anesthesia machine of FIG. 1 at A;
FIG. 5 is a front view of an anesthetic gas recovery apparatus for an anesthesia machine in accordance with the present invention;
FIG. 6 is a perspective view of a fixing mechanism of the anesthetic gas recovery apparatus for an anesthesia machine according to the present invention;
description of reference numerals:
1. a base plate; 2. a threaded sleeve; 3. supporting legs; 4. a roller; 5. a base; 6. a guide rail; 7. heating a tube; 8. a connecting pipe; 9. a drain pipe; 10. a first solenoid valve; 11. a purification box; 12. a filter box; 13. a cover body; 14. rotating the rod; 15. a rotating cylinder; 16. an air inlet pipe; 17. a breather pipe; 18. a liquid inlet hopper; 19. a stepping motor; 20. an anesthesia machine; 21. an operation table; 22. an oxygen cylinder; 23. a liquid storage tank; 24. a liquid inlet pipe; 25. a circulation pipe; 26. a gas detector; 27. a detection box; 28. a rolling mechanism; 29. an exhaust pipe; 30. a drying oven; 31. an exhaust fan; 32. a box body; 33. an activated carbon adsorption plate; 34. a collection box; 35. a fixing mechanism; 36. a stirring shaft.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1-6, an anesthetic gas recovery device for an anesthesia machine comprises a bottom plate 1, wherein a box body 32 is fixedly connected to the upper surface of the bottom plate 1, a filter box 12 is fixedly connected to the inner bottom wall of the box body 32, a stepping motor 19 is fixedly connected to the upper surface of the filter box 12, a stirring shaft 36 is fixedly connected to the output end of the stepping motor 19, a rotating rod 14 is arranged on the outer surface of the bottom end of the stirring shaft 36, a rotating cylinder 15 is arranged at the outer end of the rotating rod 14, a guide rail 6 and an activated carbon adsorption plate 33 are fixedly connected to the front and rear inner walls of the filter box 12, a cover body 13 is arranged on the left side wall of the box body 32 and movably connected to the activated carbon adsorption plate 33, a purification box 11 is fixedly connected to the right side of the filter box 12 and is arranged on the inner bottom wall of the box 32, a drain pipe 9 is fixedly connected to the lower end of the purification box 11 and extends into the bottom plate 1, the right side inner wall fixedly connected with detection case 27 of box 32, inner wall swing joint has the mechanism 28 that rolls about detection case 27, the gaseous detector 26 of rear side inner wall fixed connection of detection case 27, the last fixed surface of detection case 27 is connected with circulating pipe 25, the right side inner wall of box 32 and the below that is located detection case 27 are equipped with drying cabinet 30, the inside air discharge fan 31 that is equipped with of right side wall of box 32, be equipped with blast pipe 29 between detection case 27 and the drying cabinet 30 and be connected.
In above-mentioned technical scheme, through utilizing step motor 19 to drive (mixing) shaft 36 and then make a rotation section of thick bamboo 15 and the sponge that absorbs water rotate, absorb the steam in the anesthetic gas of retrieving, make gas drier, it is better to make the filter effect, gas filters through double-deck active carbon adsorption plate 33, make gaseous inside impurity carry out the edulcoration and retrieve, it is better to make gaseous edulcoration effect, active carbon adsorption plate 33 accessible is opened lid 13 and is changed simultaneously, make the difficult step-down of efficiency of active carbon adsorption plate 33, be favorable to active carbon adsorption plate 33's long-time use, utilize circulating pipe 25 simultaneously, make gas can carry out secondary filter purification operation, it is more thorough to make gaseous edulcoration, accord with emission standard.
Preferably, a fixing frame is fixedly connected to the lower surface of the bottom plate 1, a collecting box 34 is arranged on the inner wall of the fixing frame, a drain pipe is fixedly connected to the outer wall of the left side of the collecting box 34, the drain pipe 9 is fixedly connected to the collecting box 34, and a first electromagnetic valve 10 is arranged inside the drain pipe 9.
In the above technical scheme, utilize collecting box 34 to collect waste water, avoid waste water directly to excrete, be favorable to the recovery of waste water to recycle, the waste water of being convenient for is concentrated disposable, makes work efficiency higher.
Preferably, the lower surface of the bottom plate 1 is provided with support legs 3 located on the outer side of the fixed frame, the lower ends of the support legs 3 are fixedly connected with a base 5, and rollers 4 are arranged in the middle of the lower ends of the base 5 through short shafts, so that the device can be moved conveniently.
Preferably, the inner wall of the rotating cylinder 15 is provided with a water-absorbing sponge, and the rotating cylinder 15 is provided with a through hole inside, so that moisture in the gas can be absorbed.
Preferably, the other end of the circulation pipe 25 is fixedly connected with the filter tank 12, and the second electromagnetic valve is arranged inside the circulation pipe 25, so that the pipeline can be conveniently communicated or closed, and the operation is simpler and more convenient.
As the preferred of above-mentioned technical scheme, the last fixed surface of box 32 is connected with anesthesia machine 20 and oxygen cylinder 22, the last fixed surface of anesthesia machine 20 is connected with operation panel 21, the right side that the upper surface of box 32 just is located oxygen cylinder 22 is equipped with liquid reserve tank 23, the upper surface of liquid reserve tank 23 is equipped with into liquid fill 18, the left side outer wall fixedly connected with feed liquor pipe 24 of liquid reserve tank 23, and the other end and purifying box 11 fixed connection, the left side inner wall fixedly connected with level gauge of purifying box 11.
In above-mentioned technical scheme, make waste gas through liquid purification back, the impure gas in the waste gas absorbs more fully, and the reaction is more thorough, is favorable to discharging fast, improves gas recovery's efficiency, utilizes the level gauge simultaneously, and the use amount of the control liquid of being convenient for is favorable to rational utilization purifying liquid, avoids extravagant.
Preferably, as the above technical scheme, a connecting pipe 8 is arranged between the filter box 12 and the purification box 11 for connection, the connecting pipe 8 extends to the inside of the purification box 11, a filter element is arranged at the top end of the connecting pipe 8, a heating pipe 7 is arranged on the outer side surface of the connecting pipe 8, a communicating pipe is arranged between the purification box 11 and the detection box 27 for connection, and the heating pipe 7 is utilized to enable the reaction rate of waste gas to be faster and the reaction to be more sufficient, and a waterproof valve core is utilized to prevent the purified liquid from being guided.
Preferably, the air inlet pipe 16 is fixedly connected to the inside of the left side wall of the box body 32 and extends into the filter box 12, the air vent pipe 17 is arranged at the left end of the air inlet pipe 16, the threaded sleeve 2 is arranged at the joint, the connection is more stable by the threaded sleeve 2, and the air vent pipe 17 is not easy to fall off.
Preferably, the front side surface of the box 32 is provided with a fixing mechanism 35, the fixing mechanism 35 comprises a fixing sleeve and a fixing plate, the fixing sleeve is fixedly connected with the box 32, the inner wall of the fixing sleeve is provided with a fixing rod, the surface below the fixing rod is provided with a fastening spring, the fixing rod is fixedly connected with the fixing plate, the device and the wall can be fixed, and the device is prevented from displacing, so that the use of the device is further influenced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The utility model provides an anesthetic gas recovery unit for anesthesia machine which characterized in that: the water purifier comprises a bottom plate (1), wherein the upper surface of the bottom plate (1) is fixedly connected with a box body (32), the bottom inner wall of the box body (32) is fixedly connected with a filter box (12), the upper surface of the filter box (12) is fixedly connected with a stepping motor (19), the output end of the stepping motor (19) is fixedly connected with a stirring shaft (36), the bottom outer side surface of the stirring shaft (36) is provided with a rotating rod (14), the outer end of the rotating rod (14) is provided with a rotating cylinder (15), the front inner wall and the rear inner wall of the filter box (12) are fixedly connected with a guide rail (6) and an active carbon adsorption plate (33), the left side wall of the box body (32) is provided with a cover body (13) and is movably connected with the active carbon adsorption plate (33), the bottom inner wall of the box body (32) is positioned on the right side of the filter box (12), the lower end of the purification box (11) is fixedly connected with a drain pipe (9) and extends to the inside of the bottom plate (1), the utility model discloses a solar water heater, including box (32), the right side inner wall fixedly connected with detection case (27), inner wall swing joint has rolling mechanism (28) about detection case (27), the gaseous detector of rear side inner wall fixed connection (26) of detection case (27), the last fixed surface of detection case (27) is connected with circulating pipe (25), the right side inner wall of box (32) and the below that is located detection case (27) are equipped with drying cabinet (30), the inside exhaust fan (31) that is equipped with of right side wall of box (32), be equipped with between detection case (27) and drying cabinet (30) blast pipe (29) and be connected.
2. An anesthetic gas recovery apparatus for an anesthesia machine according to claim 1, characterized in that: the lower surface of the bottom plate (1) is fixedly connected with a fixing frame, the inner wall of the fixing frame is provided with a collecting box (34), the outer wall of the left side of the collecting box (34) is fixedly connected with a drain pipe, the drain pipe (9) is fixedly connected with the collecting box (34), and a first electromagnetic valve (10) is arranged inside the drain pipe (9).
3. An anesthetic gas recovery apparatus for an anesthesia machine according to claim 2, characterized in that: the lower surface of bottom plate (1) and the outside that is located fixed frame are equipped with supporting leg (3), the lower extreme fixedly connected with base (5) of supporting leg (3), department is equipped with gyro wheel (4) through the minor axis in the middle of the lower extreme of base (5).
4. An anesthetic gas recovery apparatus for an anesthesia machine according to claim 1, characterized in that: the inner wall of the rotating cylinder (15) is provided with a water-absorbing sponge, and a through hole is formed in the rotating cylinder (15).
5. An anesthetic gas recovery apparatus for an anesthesia machine according to claim 1, characterized in that: the other end of the circulating pipe (25) is fixedly connected with the filtering tank (12), and a second electromagnetic valve is arranged inside the circulating pipe (25).
6. An anesthetic gas recovery apparatus for an anesthesia machine according to claim 1, characterized in that: the utility model discloses a medical anesthesia machine, including box (32), upper surface fixedly connected with anesthesia machine (20) and oxygen cylinder (22) of box (32), the upper surface fixedly connected with operation panel (21) of anesthesia machine (20), the upper surface of box (32) and the right side that is located oxygen cylinder (22) are equipped with liquid reserve tank (23), the upper surface of liquid reserve tank (23) is equipped with into liquid fill (18), the left side outer wall fixedly connected with feed liquor pipe (24) of liquid reserve tank (23), and the other end and purifying box (11) fixed connection, the left side inner wall fixedly connected with level gauge of purifying box (11).
7. An anesthetic gas recovery apparatus for an anesthesia machine according to claim 1, characterized in that: be equipped with connecting pipe (8) between rose box (12) and purifying box (11) and be connected, connecting pipe (8) extend to the inside of purifying box (11), and the top of connecting pipe (8) is equipped with the filter core, the outside surface of connecting pipe (8) is equipped with heating pipe (7), be equipped with communicating pipe between purifying box (11) and detection case (27) and be connected.
8. An anesthetic gas recovery apparatus for an anesthesia machine according to claim 1, characterized in that: the inside fixedly connected with intake pipe (16) of the left side wall of box (32) and extend to the inside of rose box (12), the left end of intake pipe (16) is equipped with breather pipe (17), and the junction is equipped with thread bush (2).
9. An anesthetic gas recovery apparatus for an anesthesia machine according to claim 1, characterized in that: the front side surface of box (32) is equipped with fixed establishment (35), fixed establishment (35) are including fixed cover and fixed plate, fixed cover and box (32) fixed connection, the inner wall of fixed cover is equipped with the dead lever, the below surface of dead lever is equipped with fastening spring, dead lever and fixed plate fixed connection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110448487.XA CN113144360A (en) | 2021-04-25 | 2021-04-25 | Anesthetic gas recovery device for anesthesia machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110448487.XA CN113144360A (en) | 2021-04-25 | 2021-04-25 | Anesthetic gas recovery device for anesthesia machine |
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| CN113144360A true CN113144360A (en) | 2021-07-23 |
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| CN202110448487.XA Pending CN113144360A (en) | 2021-04-25 | 2021-04-25 | Anesthetic gas recovery device for anesthesia machine |
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| CN210964520U (en) * | 2019-09-11 | 2020-07-10 | 黄键 | Special waste gas pumping device for anesthesia |
| CN211963735U (en) * | 2020-02-04 | 2020-11-20 | 林保东 | Anesthesia department is with anesthesia waste gas pump drainage device |
| CN112121266A (en) * | 2020-09-30 | 2020-12-25 | 赵允起 | Anesthesia waste gas purification recovery unit in operating room |
| CN213032157U (en) * | 2020-05-20 | 2021-04-23 | 青岛大学附属医院 | Anesthesia waste gas pumping device for anesthesia machine |
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2021
- 2021-04-25 CN CN202110448487.XA patent/CN113144360A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206881460U (en) * | 2017-07-04 | 2018-01-16 | 张培华 | A kind of anesthesia in operating room exhaust extractor |
| CN108434940A (en) * | 2018-05-07 | 2018-08-24 | 唐在荣 | One kind is for indoor waste gas of anesthesia purifier of performing the operation |
| CN208911789U (en) * | 2018-07-25 | 2019-05-31 | 白银市第一人民医院 | A kind of waste gas of anesthesia processing unit |
| CN210964520U (en) * | 2019-09-11 | 2020-07-10 | 黄键 | Special waste gas pumping device for anesthesia |
| CN211963735U (en) * | 2020-02-04 | 2020-11-20 | 林保东 | Anesthesia department is with anesthesia waste gas pump drainage device |
| CN213032157U (en) * | 2020-05-20 | 2021-04-23 | 青岛大学附属医院 | Anesthesia waste gas pumping device for anesthesia machine |
| CN112121266A (en) * | 2020-09-30 | 2020-12-25 | 赵允起 | Anesthesia waste gas purification recovery unit in operating room |
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Application publication date: 20210723 |
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