CN212262851U - Anesthesia exhaust emission device - Google Patents

Abstract

The utility model relates to an anesthesia exhaust emission device, including buffer and purifier, still be provided with the check valve, buffer is for using a confined container, is provided with two through-holes and relief valve on the top cap of this container, is provided with the purification chamber in the purifier, purifies the intracavity and is provided with cotton layer of washing water, activated carbon layer, HEPA filter screen and micro vacuum pump. The utility model discloses a buffer can prevent that the negative pressure from too big damage anesthesia machine, produces the return air in the time of the check valve can prevent to bleed simultaneously, prevents the gas refluence, causes the patient secondary to inhale to influence the inhaled dose of anesthetic. Residual moisture is absorbed through the cotton layer that absorbs water in the purifying cavity, peculiar smell and anesthetic waste gas in the anesthetic waste gas are got rid of through the active carbon layer, are further ensured anesthetic waste gas by the complete absorption through the HEPA filter screen to realize the innoxious emission of anesthetic waste gas.

Description

Anesthesia exhaust emission device

Technical Field

The utility model relates to a medical waste gas discharges technical field, especially relates to an anesthesia exhaust emission device.

Background

In medical surgery, anesthesia technology is often required to be applied to relieve pain of patients and facilitate surgery, and at present, two methods for implementing anesthesia are mainly used in anesthesia surgery: intravenous injection or anesthesia with an anesthesia ventilator. The anesthesia of the anesthesia respirator is realized by mixing anesthetic gas into air in a required proportion, so that the anesthetic gas enters the lung of a patient through a respiratory system and enters the body of the patient through gas exchange of the lung, and redundant anesthetic gas and expired carbon dioxide are discharged from an outlet of the respiratory system.

Aiming at the problem that in the process of anesthesia, the anesthetic waste gas is inevitably and finally discharged into the atmosphere, and the anesthetic gas is greenhouse gas, which causes great damage to the ecological environment and brings great harm to the bodies of medical workers, Chinese patent ZL201721639446.4 discloses an anesthetic waste gas discharger which comprises a discharger and a vacuum pump, wherein the left side of the discharger is connected with a waste gas port, the waste gas port is connected with the discharger through a bolt, the right side of the waste gas port is provided with a leather hose which is tightly connected with the waste gas port, the right side of the leather hose is provided with a tank body, the left side of the tank body is provided with a cone, the left side of the cone is provided with an air inlet, the cone is connected with the air inlet through a bolt, the inner side of the tank body is symmetrically provided with fixing plates, both sides of the inner side of each fixing plate are provided with water-absorbing, the vacuum pump right side is provided with the blast pipe, through its the anesthesia waste gas emission ware that discloses, and the cotton that absorbs water can carry out prefilter with anesthesia waste gas to filter once more at the afterbody of emission ware, ensure the filterable abundant of anesthesia waste gas. The device sucks the waste gas discharged from the waste gas outlet of the anesthesia machine through negative pressure, but the anesthesia machine is damaged by the larger negative pressure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anesthesia exhaust emission device to solve the damage that the great negative pressure that provides causes anesthesia machine easily in the above-mentioned background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:

the utility model relates to an anesthesia waste gas discharge device, which comprises a buffer device and a purification device, and is characterized in that the buffer device is a closed container, two through holes and a pressure release valve are arranged on the top cover of the container, one of the through holes is connected with a waste gas discharge port of an anesthesia machine through a first connecting pipe, the other through hole is connected with the bottom of the purification device through a second connecting pipe, a sodium hydroxide solution is arranged in the container, the end of the part of the first connecting pipe, which is positioned in the container, is immersed in the sodium hydroxide solution, the end of the part of the second connecting pipe, which is positioned in the container, is positioned above the liquid level of the sodium hydroxide solution, a waste gas discharge valve is arranged on the first connecting pipe, a purification cavity is arranged in the purification device, a first clapboard, a second clapboard and a third clapboard are sequentially arranged in the purification cavity from top to bottom, wherein a, the intake pipe of micro vacuum pump runs through first baffle, is provided with the HEPA filter screen between first baffle and second baffle, is provided with the activated carbon layer between second baffle and third baffle, is provided with the cotton layer that absorbs water between the diapire in purification chamber and third baffle.

Preferably, the pressure relief valve comprises a flow blocking plate provided with a reed below, the flow blocking plate bends under the action of external atmospheric pressure when the air pressure in the container is less than one atmosphere, and the flow blocking plate resets under the action of the reed when the air pressure is balanced. Through the technical characteristics, the external air flows into the container, the air pressure in the container is prevented from being further reduced, and the anesthesia machine is prevented from being damaged by large negative pressure.

Preferably, the second partition plate and the third partition plate are uniformly provided with filtering holes.

Preferably, the first connecting pipe is provided with a check valve. Through the technical characteristics, the generation of return air during air exhaust is prevented, the air backflow is prevented, the secondary inhalation of a patient is caused, and the inhalation dosage of anesthetic is influenced.

Preferably, the bottom of the micro vacuum pump is provided with a buffer pad. Through the technical characteristics, the vibration and the noise generated when the micro vacuum pump works can be absorbed through the buffer pad.

The utility model has the advantages that:

(1) the utility model discloses a buffer can prevent that the negative pressure from too big damage anesthesia machine, produces the return air in the time of the check valve can prevent to bleed simultaneously, prevents the gas refluence, causes the patient secondary to inhale to influence the inhaled dose of anesthetic.

(2) The utility model discloses a cotton layer of absorbing water in the purification chamber absorbs remaining moisture, gets rid of peculiar smell and anesthetic waste gas in the anesthetic waste gas through the active carbon layer, further ensures anesthetic waste gas by the complete absorption through the HEPA filter screen to realize the innoxious emission of anesthetic waste gas.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention. Wherein, 1 buffer, 2 purifier, 3 relief valves, 4 first connecting pipes, 5 second connecting pipes, 6 exhaust-gas discharge valves, 7 first baffles, 8 second baffles, 9 third baffles, 10 micro vacuum pumps, 11 HEPA filter screen, 12 activated carbon layer, 13 cotton layer that absorbs water, 14 check valves.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1, an anesthesia waste gas discharging device comprises a buffer device 1 and a purifying device 2, and is characterized in that the buffer device is a closed container, two through holes and a pressure release valve 3 are arranged on a top cover of the container, one of the through holes is connected with a waste gas discharging port of an anesthesia machine through a first connecting pipe 4, the other through hole is connected with the bottom of the purifying device through a second connecting pipe 5, a sodium hydroxide solution is arranged inside the container, the tail end of the part of the first connecting pipe, which is positioned inside the container, is immersed into the sodium hydroxide solution, the tail end of the part of the second connecting pipe, which is positioned inside the container, is positioned above the liquid level of the sodium hydroxide solution, a waste gas discharging valve 6 is arranged on the first connecting pipe, a purifying cavity is arranged inside the purifying device, a first partition plate 7, a second partition plate 8 and a third partition plate 9 are sequentially arranged inside the purifying cavity from top to bottom, the intake pipe of micro vacuum pump runs through first baffle, is provided with HEPA filter screen 11 between first baffle and second baffle, is provided with activated carbon layer 12 between second baffle and third baffle, is provided with the cotton layer 13 that absorbs water between the diapire in purification chamber and third baffle. The pressure relief valve comprises a flow blocking sheet, a reed is arranged below the flow blocking sheet, when the air pressure in the container is smaller than one atmospheric pressure, the flow blocking sheet bends under the action of the external atmospheric pressure, and when the air pressure is balanced, the flow blocking sheet can reset under the action of the reed. Through the technical characteristics, the external air flows into the container, the air pressure in the container is prevented from being further reduced, and the anesthesia machine is prevented from being damaged by large negative pressure. And the second partition plate and the third partition plate are uniformly provided with filter holes. The first connecting pipe is provided with a check valve 14. The bottom of the micro vacuum pump is provided with a buffer pad.

The utility model discloses when using, open the exhaust-gas discharge valve, produce the negative pressure under miniature vacuum pump's effect, anesthesia waste gas gets into buffer through first connecting pipe, the sodium hydroxide solution among the buffer absorbs the carbon dioxide in the waste gas, then waste gas gets into purifier through the second connecting pipe, at first the cotton layer that absorbs water in the purifier absorbs remaining water powder in with waste gas and removes, peculiar smell and anesthetic waste gas in the anesthesia waste gas are got rid of to activated carbon layer after that, further ensure anesthetic waste gas by absorbing completely through the HEPA filter screen, thereby realize the innoxious emission of anesthesia waste gas. Through the check valve, the generation return air is prevented when pumping air, the gas backflow is prevented, the secondary inhalation of a patient is caused, and the inhalation dosage of anesthetic is influenced. When the air pressure in the container is less than one atmosphere, the spoiler bends under the action of the external atmosphere, and when the air pressure is balanced, the spoiler resets under the action of the reed. Through the technical characteristics, the external air flows into the container, the air pressure in the container is prevented from being further reduced, and the anesthesia machine is prevented from being damaged by large negative pressure.

Moreover, it should be understood that the above description is only exemplary of the preferred embodiments of the present invention, and is not intended to limit the invention in any way. All the simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims (5)

1. An anesthesia waste gas discharge device comprises a buffer device (1) and a purification device (2), and is characterized in that the buffer device is a closed container, two through holes and a pressure release valve (3) are arranged on a top cover of the container, one through hole is connected with a waste gas discharge port of an anesthesia machine through a first connecting pipe (4), the other through hole is connected with the bottom of the purification device through a second connecting pipe (5), a sodium hydroxide solution is arranged inside the container, the tail end of the part of the first connecting pipe, which is positioned inside the container, is immersed into the sodium hydroxide solution, the tail end of the part of the second connecting pipe, which is positioned inside the container, is positioned above the liquid level of the sodium hydroxide solution, a waste gas discharge valve (6) is arranged on the first connecting pipe, a purification cavity is arranged inside the purification device, and a first partition plate (7), a second partition plate (8) and a third partition plate (9) are sequentially arranged, wherein, a micro vacuum pump (10) is arranged on the first clapboard, an air inlet pipe of the micro vacuum pump penetrates through the first clapboard, an HEPA filter screen (11) is arranged between the first clapboard and the second clapboard, an activated carbon layer (12) is arranged between the second clapboard and the third clapboard, and a water absorption cotton layer (13) is arranged between the bottom wall of the purification cavity and the third clapboard.

2. The apparatus as claimed in claim 1, wherein the pressure release valve comprises a flow blocking plate having a spring plate disposed thereunder, the flow blocking plate being bent by the external atmospheric pressure when the pressure in the container is less than an atmospheric pressure, and the flow blocking plate being reset by the spring plate when the pressure is balanced.

3. The waste gas discharging device for anesthesia as claimed in claim 1 or 2, wherein said second partition plate and said third partition plate are uniformly provided with filtering holes.

4. An anesthetic gas discharge device as claimed in claim 1 or 2, characterized in that said first connecting pipe is provided with a non-return valve (14).

5. An exhaust device for anesthesia as claimed in claim 1 or 2, wherein said micro vacuum pump is provided with a cushion at the bottom thereof.

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