CN113663246A

CN113663246A - Anesthetic gas purification device

Info

Publication number: CN113663246A
Application number: CN202111231291.1A
Authority: CN
Inventors: 刘希江; 牛新环
Original assignee: Shandong Provincial Hospital Affiliated to Shandong First Medical University
Current assignee: Shandong Provincial Hospital Affiliated to Shandong First Medical University
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2021-11-19
Anticipated expiration: 2041-10-22
Also published as: CN113663246B

Abstract

The application discloses an anesthetic gas purification device, which comprises purification equipment, a breathing mask assembly, a disposable mask, a first gas storage soft bag and a second gas storage soft bag, wherein the first gas storage soft bag is arranged in the breathing mask assembly; the disposable mask is communicated with the first air storage soft bag and the second air storage soft bag through pipelines; the first gas storage soft bag is used for buffering and storing anesthetic gas required to be inhaled by a patient; the purifying equipment comprises a suction cylinder, a filter tank and a suction one-way valve; the suction cylinder is of a piston type structure, one end of the suction cylinder is provided with a suction one-way valve, and the other end of the suction cylinder provided with the suction one-way valve sucks gas in the second gas storage soft bag; the filter tank is communicated with the suction cylinder body, so that when the piston in the suction cylinder compresses gas, the gas can flow out through the filter tank. This purifier, the filter effect is better.

Description

Anesthetic gas purification device

Technical Field

The invention relates to an air purification device for an anesthesia department, in particular to a filtration and purification device for anesthetic gas.

Background

The anesthetic gas purifying device utilizes purifying substances to carry out effective physical and chemical filtration on air exhaled by a patient using anesthetic so as to protect the personal safety of medical staff and the patient.

The existing large hospitals are equipped with special indoor air purification equipment, but the machines basically perform air suction treatment on the indoor overall environment, and the treatment mode only performs purification on the large environment of the indoor environment and does not fundamentally prevent the anesthesia waste gas from being absorbed by medical care personnel and patients, so that the life health and safety of the patients and the medical care personnel are threatened; in addition, a general breathing auxiliary tool is basically adopted in the aspect of breathing of the patient, so that the patient has great defects in medical comfort; in addition, the existing filtering equipment has the advantages that the gas conveying process is continuous, a channel with small resistance is easily formed in the filtering material, most of gas passes through the filtering material through the channel with small resistance, the utilization rate of most of the filtering material is low, the filtering effect is poor after the filtering equipment is used for a while, and the content of anesthetic gas in the filtered air is gradually increased.

Disclosure of Invention

In order to solve the problems, the invention discloses a comprehensive purification device for treating the anesthetic waste gas generated by different patients.

In order to achieve the purpose, the invention provides the following technical scheme that the device for purifying the waste anesthetic gas comprises a purifying device, a breathing mask component, a disposable mask, a first gas storage soft bag and a second gas storage soft bag;

the disposable mask is communicated with the first air storage soft bag and the second air storage soft bag through pipelines;

the volumes of the first air storage soft bag and the second air storage soft bag are not less than 1.5L;

the first gas storage soft bag is used for buffering and storing anesthetic gas required to be inhaled by a patient; the communication pipeline of the first air storage soft bag and the disposable mask is provided with a one-way valve, so that air can only flow from the first air storage soft bag to the disposable mask;

the second gas storage soft bag is used for buffering and storing gas exhaled by the patient, and a communication pipeline between the second gas storage soft bag and the disposable mask is provided with a one-way valve, so that the gas can only flow from the disposable mask to the second gas storage soft bag;

the purifying equipment comprises a suction cylinder, a filter tank and a suction one-way valve;

the suction cylinder is of a piston type structure, one end of the suction cylinder is provided with a suction one-way valve, and the other end of the suction cylinder provided with the suction one-way valve sucks gas in the second gas storage soft bag;

the filter tank is communicated with the suction cylinder body, so that when the piston in the suction cylinder compresses gas, the gas can flow out through the filter tank.

Further, the air bag comprises a unit air bag; the unit air bags are connected into a strip shape;

the inflation and deflation component is used for inflating the unit air bag; the air inlet pipe of the charging and discharging assembly is communicated with the second air storage soft bag.

Furthermore, the charging and discharging assembly is an automatic air column roll inflator, and the unit air bag is a rolled air column.

Further, the unit airbag includes a main body portion, a treatment portion, and a connecting portion;

the main body part is used for accommodating gas;

the two processing parts are communicated with the main body part at two sides of the main body part in the length direction;

the connecting part is used for being fixedly connected with the adjacent unit air bags to form a series of unit air bag groups;

the charging and discharging assembly comprises a shell, a guide pipe, a needle tube, an air pump, a telescopic device and an adsorption device;

the shell is used for bearing other parts in the charging and discharging assembly;

the guide pipe is fixed on the shell; the guide tube can point to the end face of the processing part, so that subsequent needle tube puncture operation is facilitated;

the needle tube and the guide tube are coaxially arranged; the telescopic device is provided with a telescopic end, and the moving direction of the telescopic end is parallel to the axis of the guide tube; the telescopic end of the telescopic device is fixedly connected with the needle tube through a connecting rod, and the telescopic device can drive the needle tube to penetrate through the guide tube;

the air pump is fixed in the shell; the air pump is communicated with the tail end of the needle tube through a hose;

the adsorption device is used for attracting the end surface of the positioning processing part; the adsorption device comprises a negative pressure ring which is coaxially fixed at the end of the guide tube close to the treatment part; the negative pressure ring is communicated with a negative pressure pump in the adsorption device and can adsorb the treatment part;

the first air bag is used for containing anesthetic gas to be inhaled by a patient, the second air bag is used for extracting the anesthetic gas in the unit air bag and injecting the anesthetic gas into the first air bag, and the third air bag is used for extracting gas exhaled by the patient in the second air bag and injecting the gas into the unit air bag;

the hot-pressing plastic package assembly comprises a hot-pressing fixture and a soft surface layer;

the hot-pressing clamp is used for carrying out hot-pressing sealing on the processing part to ensure that the hole formed by the needle tube on the processing part is sealed again in an airtight manner;

the soft surface layer is used for wrapping and clamping the needle tube, so that the processing part keeps sealing during hot-press plastic packaging.

Furthermore, the adsorption device is provided with three switches which are respectively a first light touch switch, a second light touch switch and a gas flow switch;

the first tact switch is fixed at the end opening of the guide pipe, and when the processing part contacts the first tact switch, the first tact switch starts a negative pressure pump in the adsorption device, so that the negative pressure ring adsorbs the processing part, and simultaneously, the telescopic device is started to extend; when the unit air bag is removed, the first tact switch closes the negative pressure pump of the adsorption device;

the second light touch switch is fixed on the guide tube and positioned on the moving path of the telescopic device, when the telescopic device drives the needle tube to be inserted into the processing part, the telescopic device contacts the second light touch switch, and the second light touch switch starts the air pump to inflate or deflate the unit air bag; the telescopic device contacts the second light touch switch and stops moving continuously;

the air pump is provided with an air flow switch, when the flow of the inflation gas and the deflation gas reaches a preset value, the air pump is closed, meanwhile, the air flow switch opens the telescopic device to withdraw, and simultaneously, the hot-pressing plastic package assembly is opened to work, and the hot-pressing clamp clamping processing part carries out hot-pressing operation.

Further, the device also comprises a winding assembly;

the winding assembly is used for storing and conveying the unit airbag group;

the winding assembly comprises a first roller, a second roller and a third roller; the first roller, the second roller and the third roller are driven by chains, gears or belts and are driven by a stepping motor to synchronously rotate;

the first roller winding unit air bag group;

the second roller receives the unit airbag group on the first roller, and the third roller receives the unit airbag group on the second roller;

the first roller, the second roller and the third roller unit air bags are continuous;

the first inflation and deflation component is arranged at the endpoint of the second roller receiving air bag and is used for filling anesthetic gas into the unit air bag,

the second inflation and deflation component is positioned at the end point of the unit air bag away from the second roller and is used for pumping out the air filled in the anesthesia air unit air bag and filling the anesthesia air into the first air storage soft bag through an air pump in the second inflation and deflation component;

the third charging and discharging assembly is positioned at one side of the area of the third roller conveying unit air bag and is used for charging the air exhaled by the patient in the second air storage soft bag into the unit air bag.

Has the advantages that:

1) because the inspiration and expiration are buffered by the air storage soft bag, the inspiration and expiration of the patient are performed under no pressure, and the comfort level is higher;

2) the use of the gas storage soft bag is convenient for flexibly adjusting the air input, buffering and storing the exhaled gas and convenient for anesthesia operation;

3) the exhaled air is conveyed in a drawing mode, discontinuous negative pressure suction is convenient to generate on the air, the air is changed from no pressure to the highest value, a channel with low resistance is not easy to generate due to continuous air conveying, pressure change can be formed in the suction process, and the filtering material, particularly the powdery and granular filtering material, can be fully mixed and contacted with the air, so that the filtering is more sufficient;

4) the air storage soft bag and the face mask form a closed air flow path together, so that the leakage of anesthetic gas is avoided, the integral air filtration treatment in an operating room can be reduced or not required, and the safety of doctors and patients is improved;

5) the anesthesia gas can be stored in a unitized way through the unit air bag, the filtration operation of the anesthesia gas can be slowed down or delayed after the anesthesia gas is stored, the requirement on a filter material is reduced, and the problem that the filtration is unqualified due to continuous filtration is avoided;

6) the anesthetic gas stored in the unit can also be pretreated by ultraviolet irradiation, so that the load of single filtration treatment is reduced, and the content of the anesthetic gas in the filtered gas is further reduced.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic view of an anesthetic gas purification apparatus;

FIG. 2 is a schematic view of gas delivery and storage through a cell bladder;

FIG. 3 is a schematic view of a structure of a charge/discharge assembly;

FIG. 4 is a schematic view of a hot pressing operation;

FIG. 5 is a schematic view of a cell bladder configuration;

FIG. 6 is a schematic structural view of a hot-press plastic package assembly;

FIG. 7 is an illustration of the tact switch, the second tact switch, the gas flow switch starting conditions and the on/off settings;

FIG. 8 is an operational schematic of the winding assembly;

in the figure, a breathing mask assembly 10, a disposable mask 11, a first air storage soft bag 12 and a second air storage soft bag 13;

a purification apparatus 100, a suction cylinder 110, a canister 120, a suction check valve 130;

an intake tank 300;

a winding assembly 400, a first roller 410, a second roller 420, a third roller 430;

a unit airbag 500, a main body portion 510, a processing portion 520, a mold sealing portion 530, and a connecting portion 540;

the inflation and deflation assembly 600, the housing 610, the guide tube 620, the needle tube 630, the air pump 640, the expansion device 650, the adsorption device 660, the negative pressure ring 661, the first tact switch 670, the second tact switch 680 and the air flow switch 690;

a hot-press plastic package assembly 700, a hot-press fixture 710, a soft surface layer 720;

an exhaust tank 900.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-2, an anesthetic gas exhaust purification apparatus comprises a breathing mask assembly 10, a disposable mask 11, a first gas storage soft bag 12, and a second gas storage soft bag 13;

the disposable mask 11 is communicated with the first air storage soft bag 12 and the second air storage soft bag 13 through pipelines;

the volumes of the first air storage soft bag 12 and the second air storage soft bag 13 are not less than 1.5L;

the first gas storage soft bag 12 is communicated with an anesthetic gas source and is used for buffering and storing anesthetic gas required to be inhaled by a patient; the communication pipeline between the first air storage soft bag 12 and the disposable mask 11 is provided with a one-way valve, so that air can only flow from the first air storage soft bag 12 to the disposable mask 11;

the second air storage soft bag 13 is used for buffering and storing the air exhaled by the patient, and a communication pipeline between the second air storage soft bag 13 and the disposable mask 11 is provided with a one-way valve, so that the air can only flow from the disposable mask 11 to the second air storage soft bag 13.

The gas in the second gas storage soft bag 13 is the gas to be conveyed to the purification equipment.

The purification apparatus 100 includes a suction cylinder 110, a canister 120, a suction check valve 130;

the suction cylinder 110 is of a piston structure, one end of the suction cylinder is provided with a suction one-way valve 130, and the other end of the suction cylinder provided with the suction one-way valve 130 sucks the gas in the second gas storage soft bag 13;

the canister 120 is in communication with the body of the suction cylinder 110 such that when the piston in the suction cylinder 110 compresses the gas, the gas can flow out through the canister 120.

Because the inspiration and expiration are buffered by the air storage soft bag, the inspiration and expiration of the patient are performed under no pressure, and the comfort level is higher; the use of the air storage soft bag is convenient for flexibly adjusting the air input, the inspiration and expiration of the patient are different, the inspiration and expiration volume is also changed in different states, the soft bag is used for buffering, the buffering and storage of air are convenient, and the anesthesia operation is convenient.

In addition, compared with the continuous flow mode of the fan, the suction type gas flow mode is matched with the intermittent processing gas at the edge of the second gas storage soft bag 13 on one hand, and on the other hand, the suction type processing is convenient for adjusting the gas pressure during filtering, so that impact can be formed on the filter material such as particles and fibers, and the gas can be conveniently and fully contacted with the filter material.

When the device is actually used, the second gas storage soft bag 13 is communicated with a gas purification device to purify the gas exhaled by a patient.

The movement and operation of the soft bag are inconvenient, so that an air intake tank 300 and an air exhaust tank 900 are added, the air intake tank 300 being a rigid tank for limiting the maximum volume of the first air storage soft bag 12; the air discharge tank 900 is a rigid tank for limiting the maximum volume of the second air storage bladder 13.

Example two

In the actual use process, the requirement on the continuous handling capacity of the filter material is very high when the exhaled air is filtered, and the problem of leakage still exists when the filter material is completely difficult to filter in the use process. Therefore, the treatment of anesthetic gases envisages a storage process of the expired gases as in figures 2 to 8.

The gas exhaled by the patient is first stored in a unitized manner, and after being stored in the unit airbag 500, the exhaled gas can be stored first and then pumped out for filtering operation, so that the anesthetic gas can be finally eliminated. Therefore, the harmful gas with anesthetic ingredients exhaled by the patient can be filtered without an operating room, and the exhaled gas is prevented from leaking. Meanwhile, the unit cell 500 is in a form convenient for storage and subsequent operations. If a large reservoir bag is used, the volume of exhaled air is relatively large, and it is inconvenient to move the bag to the treatment area. The unit airbag 500 can cut the gas, and can move and handle a part of the gas, thereby providing higher safety.

Therefore, an inflation and deflation assembly 600 is required in addition to the cell airbag 500, and the inflation and deflation assembly 600 is used to perform an inflation operation on the cell airbag 500. The air inlet pipe of the charging and discharging assembly 600 is communicated with the second air storage soft bag 13. The unit cells 500 are plural and connected in a stripe shape. The inflation and deflation assembly 600 may be an automatic air pillar roll inflator, and the unit airbag 500 may be a rolled air pillar, which may continuously inflate the unit airbag 500.

The unit airbag 500 stores the gas in the second gas storage soft bag 13, and the gas in the unit airbag 500 can be discharged into a storage container in a safe operation space and then introduced into the purification apparatus 100 for filtration and purification. Even if leakage exists, the operation space can be subjected to secondary purification operation, patients and medical workers are not harmed, and the operation of filtration and purification is not influenced. Namely, the purification operation of the anesthetic gas is carried out space transfer, and the risk of the anesthetic gas leaking in the operating room can be fundamentally avoided.

EXAMPLE III

When the anesthetic gas is prepared, the actual effective components are mixed with air and inhaled by the patient, and if one air bag is used for buffering, namely the first air storage soft bag 12, the actual inhalation uniformity of the anesthetic gas can be changed due to the size of the first air storage soft bag, the air intake speed of the anesthetic gas and air, the inhalation amount of the patient, the breathing frequency of the patient and the like. Therefore, the anesthetic gas which needs to be inhaled by the patient is also treated in a unitized manner. The gas encapsulation operation may be the same as in the embodiment, with the same amount of anesthetic gas and air being injected into the cell bladder simultaneously. Then, the unit air bag 500 is fed into the first air-storing soft bag 12 at a predetermined rate.

In practice, air may be pre-charged into the cell bladders 500 such that the cell bladders 500 may be charged with only a fixed metered amount of anesthetic gas. Thus, when the device is operated continuously, the efficiency is faster, the metering is more accurate, and the gas is injected separately and is safer.

As shown in fig. 2 to 8, the inflation and deflation assembly 600 needs to have a deflation function, so as to pump out the air in the unit airbag 500 and inject the air into the first air storage soft bag 12; the air bag 500 is designed to avoid leakage and therefore facilitate the deflation operation of the inflation and deflation assembly 600.

Thus, the unit airbag 500 includes a main body portion 510, a treatment portion 520, and a connecting portion 540;

the main body 510 is used for accommodating gas;

two treatment parts 520 are provided, and communicate with the main body part 510 at both sides in the longitudinal direction of the main body part 510; the extended treatment portion 520 serves as a subsequent inflation and deflation tip to facilitate the inflation and deflation operation.

The connecting part 540 is used for being fixedly connected with the adjacent unit airbags 500 to form a series of unit airbag 500 groups;

the charging and discharging assembly 600 comprises a shell 610, a guide pipe 620, a needle tube 630, an air pump 640, a telescopic device 650 and an adsorption device 660;

the housing 610 is used for bearing other components in the charging and discharging assembly 600;

the guide tube 620 is fixed to the housing 610; the guide tube 620 can point to the end face of the processing part 520, so that the subsequent puncturing operation of the needle tube 630 is facilitated;

the needle tube 630 is coaxially arranged with the guide tube 620; the telescopic device 650 is provided with a telescopic end (an electric telescopic rod, an air cylinder and an oil cylinder are all available), and the moving direction of the telescopic end is parallel to the axis of the guide tube 620; the telescopic end of the telescopic device 650 is fixedly connected with the needle tube 630 through a connecting rod, and the telescopic device 650 can drive the needle tube 630 to pass through the guide tube 620;

the air pump 640 is fixed in the housing 610; the air pump 640 is communicated with the tail end of the needle tube 630 through a hose;

the suction device 660 is used for sucking the end face of the positioning processing part 520; the adsorption device 660 comprises a negative pressure ring 661, and the negative pressure ring 661 is coaxially fixed at the end of the guide tube 620 close to the treatment part 520; the negative pressure ring 661 communicates with the negative pressure pump in the suction device 660, and can suck the processing unit 520.

Since the unit air cells 500 are individually inflated and deflated, the number of the inflation and deflation assembly 600 is required to be three, the first is used for inflating the unit air cells 500 with the anesthetic gas that the patient should inhale, the second is used for extracting the anesthetic gas from the unit air cells 500 and injecting the extracted anesthetic gas into the first air storage soft bag 12, and the third is used for extracting the gas exhaled from the patient in the second air storage soft bag 13 and injecting the extracted anesthetic gas into the unit air cells 500.

After the inflation and deflation are completed, the airbag needs to be subjected to plastic packaging, so that the airbag further comprises a hot-press plastic packaging assembly 700. The hot-press plastic package assembly 700 comprises a hot-press fixture 710 and a soft surface layer 720;

the hot-pressing jig 710 is used for hot-pressing and sealing the processing unit 520 to hermetically close the hole formed in the needle tube 630 of the processing unit 520;

the soft surface layer 720 is used for sandwiching the needle tube 630, so that the processing unit 520 is kept sealed during the hot-press molding.

The operation of inflating the cell balloon 500 may be performed in an operating room or a separate preparation area. That is, the anesthetic gas can be used as a finished product. The gas in the unit cell 500 may be directly collected after being exhausted, may be disposed of, or may be reused for the operation of injecting the exhaled gas. When it is not necessary to inject the exhaled gas again, the exhaled gas may complete the exhaled gas injection operation using the new unit cell 500.

In actual use, the unit airbag 500 needs to be continuously inflated and deflated. Therefore, it is necessary for the apparatus to be able to automatically perform continuous inflation and deflation operations. There are various ways to implement, and two ways are provided below:

the first method comprises the following steps: the adsorption device 660 is provided with three switches, namely a first tact switch 670, a second tact switch 680 and a gas flow switch 690;

the first tact switch 670 is fixed at the end of the guiding tube 620, when the processing part 520 contacts the first tact switch 670, the first tact switch 670 starts the negative pressure pump in the adsorption device 660, so that the negative pressure ring 661 adsorbs the processing part 520, and simultaneously the expansion device 650 is started to perform the extending operation (the motor of the electric expansion rod rotates forwards, so that the expansion rod extends); the force of movement when the unit airbag 500 is conveyed is far greater than the suction force of the negative pressure ring 661, and when the unit airbag 500 is removed, the first tact switch 670 turns off the negative pressure pump of the suction device 660;

the second tact switch 680 is fixed to the guide tube 620 and located on a moving path of the telescopic device 650, when the telescopic device 650 drives the needle tube 630 to be inserted into the processing part 520, the telescopic device 650 contacts the second tact switch 680, and the second tact switch 680 turns on the air pump 640, so that the air pump 640 inflates or deflates the unit airbag 500; the telescoping device 650 contacts the second tact switch and stops the telescoping device 650 from moving (taking the electric telescopic rod as an example, the second tact switch is connected in series with the circuit of the first tact switch 670 and the electric telescopic rod, when the second tact switch 680 contacts the telescoping device 650, the circuit is disconnected, the electric telescopic rod stops moving, when using hydraulic or pneumatic device, the same principle is applied)

Air pump 640 has gas flow switch 690, and when the flow of filling the gassing reached the default, air pump 640 closed, and gas flow switch 690 opens telescoping device 650 simultaneously and withdraws the operation (taking electric telescopic handle as an example, gas flow switch opens motor reverse circuit, makes electric telescopic handle withdraw, and pneumatic or hydraulic means is the same), and opens hot pressing plastic envelope subassembly 700 work simultaneously, and hot pressing anchor clamps 710 centre gripping processing portion 520 carries out hot pressing operation.

And the second method comprises the following steps: the control of the actions of the components through the switch is one implementation mode, and the control can be performed through a timing switch. Since the movement of the unit airbag is intermittent, the intermittent time, which is actually the time for inflating and deflating the unit airbag 500, can be adjusted. Thus, the air inflation operation of the air bag is divided into the operations of adsorption of the negative pressure ring 661, insertion of the needle tube 630, inflation/deflation, retraction of the needle tube 630, pressure loss of the negative pressure ring 661, and hot-press sealing of the needle hole by the hot-press plastic package assembly 700, and the seven links are realized by presetting time for each link and controlling the opening and closing of the negative pressure pump, the expansion device 650 and the air pump 640 in cooperation with the movement interval time of the unit air bag. In practice, the parameters to be adjusted are basically only intermittent time, and because the volume of the unit airbag 500 is fixed and the inflation time is determined, the operation time interval of each component is determined, and only the time interval of the unit airbag 500 for conveying needs to be determined.

Example four

The delivery of the unit cells 500 requires relatively precise location and time intervals. Thus, the winding assembly 400 is added as shown in fig. 2 and 8.

The winding assembly 400 is used to store and transport the unit airbag 500 set;

the winding assembly 400 includes a first roller 410, a second roller 420, a third roller 430; the first roller 410, the second roller 420 and the third roller 430 are driven by chains, gears or belts and synchronously rotated by the transmission of a stepping motor;

the first roller 410 winds the unit airbag 500 group;

the second roller 420 receives the unit air cells 500 on the first roller 410, and the third roller 430 receives the unit air cells 500 on the second roller 420;

the unit airbag 500 on the first roller 410, the second roller 420, and the third roller 430 are continuous;

the stepping motor drives, the rotation process is intermittent movement; since the subsequent cell airbag 500 needs to be inflated and deflated, the intermittent movement is performed to leave the time for inflating and deflating the airbag;

the longitudinal direction of the unit airbag 500 is parallel to the axial direction of the roller, and the treatment portion 520 extends to both sides of the roller.

This arrangement is to reuse the unit airbag 500, so the position of the inflation and deflation assembly 600 needs to be matched with the delivery position of the unit chamber 500.

The number of the inflation and deflation components 600 is three, the first inflation and deflation component 600 is arranged at the end point of the second roller 420 for receiving the air bag and is used for filling the anesthesia gas into the unit air bag 500,

the second inflation and deflation assembly 600 is located at the end point of the unit airbag 500 away from the second roller 420 and is used for pumping out the gas filled in the anesthetic gas unit airbag 500 and filling the anesthetic gas into the first gas storage soft bag 12 through the gas pump 640 in the second inflation and deflation assembly 600;

the third inflation and deflation assembly 600 is located at one side of the region where the third roller 430 conveys the unit airbag 500, and is used for inflating the patient's exhaled air in the second air storage soft bag 13 into the unit airbag 500.

The steps of gas treatment using the above apparatus are as follows:

1) the air for expiration is stored through the unit air bags 500, each air bag 300-;

2) the first roller 410 winds and stores the unit air bags 500, and the second roller 420 winds the unit air bags 500 as a carrying device for injecting anesthetic gas into the unit air bags one by one; the first roller 410, the second roller 420 and the third roller 430 are all driven by a stepping motor to intermittently rotate, the same angle is synchronously rotated each time, and the outer diameters of the three rollers are also the same, so that the same number of unit air bags 500 are driven to enter an inflation or deflation process by each rotation and stay for the same time for the inflation and deflation assembly to work;

the unit airbag 500 injects anesthetic gas through the first inflation and deflation assembly 600; the treatment part 520 of the unit airbag 500 enters the bell mouth at the front end of the guide tube 620 of the inflation and deflation assembly 600 along with the rotation of the second roller 420 during injection, and the negative pressure ring 661 fixed at the outer end of the bell mouth adsorbs the outer wall of the treatment part 520 to adsorb and position the treatment part; the telescopic device 650 drives the needle tube 630 to be inserted into the treatment part 520 through the guide tube 620, and when the telescopic device 650 moves to a preset position, the air pump 640 is started to fill a preset volume of anesthetic gas into the treatment part 520;

after the anesthetic gas with preset metering is filled, the hot-pressing clamp 710 of the hot-pressing plastic package assembly 700 heats and clamps the processing part 520, at the moment, the telescopic device 650 drives the needle tube 630 to retract, the soft surface layer 720 enables the processing part 520 to be always attached and sealed with the needle tube to avoid the anesthetic gas from leaking, until the needle tube 630 is drawn out, the processing part 520 is simultaneously clamped and sealed by the hot-pressing clamp 710 to form a plastic package part 530, and the unit airbag 500 is sealed again;

3) similarly, the unit airbag 500 filled with anesthetic gas is filled into the first gas storage soft bag 12 by the gas pumped out by the second inflation and deflation assembly 600, so that the patient can inhale without pressure;

4) the gas exhaled by the patient enters the second gas storage soft bag 13, and the third gas inflation and deflation assembly 600 inflates the gas in the second gas storage soft bag 13 into the gas cell 500 which has exhausted the gas;

after a preset amount of gas is filled, the hot-press plastic package assembly 700 seals the pin holes, and the unit air bags 500 are sealed again;

5) the unit air bags filled with the gas exhaled by the patient can be stored firstly, and then are slowly introduced into the purification assembly through the inflation and deflation assembly 600 to be filtered and separated, so that the phenomenon that the filtered air still contains a certain proportion of anesthetic gas due to continuous work of the filtration assembly is avoided.

Of course, the unit airbag filled with the gas exhaled by the patient can be pretreated by ultraviolet light, and for some anesthetic gases with unstable ultraviolet light, the anesthetic gases can be effectively decomposed due to extra space and treatment time, so that the decomposition and separation effects of the anesthetic gases are improved, and the safety of indoor air is improved.

In addition, for some high-temperature unstable anesthetic gases, the unit gas bag can be directly burnt, and after the anesthetic gases are burnt, the anesthetic gases are cooled and then filtered.

Claims

1. The device for purifying the waste anesthetic gas comprises a purifying device, and is characterized by further comprising a breathing mask assembly, a disposable mask, a first gas storage soft bag and a second gas storage soft bag;

the suction cylinder is of a piston structure, one end of the suction cylinder is provided with a suction one-way valve, and the other end of the suction cylinder provided with the suction one-way valve sucks the gas in the second gas storage soft bag;

2. The anesthetic gas exhaust gas purification apparatus according to claim 1, further comprising a cell balloon; the unit air bags are connected into a strip shape;

3. The waste anesthetic gas cleaning apparatus as claimed in claim 2, wherein the inflation and deflation module is an automatic gas column roll inflator, and the unit airbag is a rolled gas column.

4. The anesthetic gas exhaust gas purification apparatus according to claim 2, wherein the unit airbag includes a main body portion, a treatment portion, a connection portion;

the main body part is used for accommodating gas;

the connecting part is used for fixedly connecting with the adjacent unit air bags to form a series of unit air bag groups;

the guide tube is fixed on the shell; the guide tube can point to the end face of the processing part, so that subsequent needle tube puncture operation is facilitated;

5. The anesthetic gas exhaust gas purification device according to claim 4, wherein the adsorption device is provided with three switches, namely a first tact switch, a second tact switch and a gas flow switch;

the second light touch switch is fixed on the guide tube and positioned on the moving path of the telescopic device, when the telescopic device drives the needle tube to be inserted into the processing part, the telescopic device contacts the second light touch switch, and the second light touch switch starts the air pump to enable the air pump to inflate or deflate the unit air bag; the telescopic device contacts the second light touch switch and stops moving continuously;

6. The anesthetic gas exhaust gas purification apparatus according to claim 5, further comprising a winding assembly;

the winding assembly is used for storing and conveying the unit airbag group;

the winding assembly comprises a first roller, a second roller and a third roller;

the first roller, the second roller and the third roller are driven by chains, gears or belts and are driven by a stepping motor to synchronously rotate;

the first roller winding unit air bag group;