CN2812964Y

CN2812964Y - Automatic collecting device for anaesthetic waste gas

Info

Publication number: CN2812964Y
Application number: CN 200520056347
Authority: CN
Inventors: 吴泽民; 吴迪勉
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-01
Filing date: 2005-04-01
Publication date: 2006-09-06
Anticipated expiration: 2015-04-01

Abstract

The utility model discloses an automatic collecting device for anesthetic waste gas, which comprises a gas inlet, a gas outlet, an air pressure buffering unit connected between the gas inlet and the gas outlet and a vacuum electromagnetic valve, wherein the air pressure buffering unit is connected with a pipeline at one end of the gas inlet in parallel, and the vacuum electromagnetic valve is arranged at one end of the gas outlet of the pipeline. The air pressure buffering unit is provided with a switching structure controlling the opening of the vacuum electromagnetic valve, and the pipeline between the gas inlet and the air pressure buffering unit is provided with a positive pressure safety valve and a negative pressure safety valve. The automatic collecting device for anesthetic waste gas can collect under the normal air pressure, and has no influence on the normal operation of the anesthetic machine. The utility model has low collecting and purifying cost and high efficiency, and can almost exhaust 100% anesthetic waste gas flowing through the anesthetic machine waste gas exhausting pipe and the waste gas breathed out by a patient after collection and treatment.

Description

The waste gas of anesthesia automatic collecting device

Technical field

This utility model relates to a kind of medical gas sampling device, particularly a kind of waste gas of anesthesia gathering-device.

Background technology

Along with gas anesthesia is widely used in all kinds of operations as a kind of effective anesthesia means, waste gas of anesthesia is handled problems and more and more is subjected to people's attention, a large amount of zooperies, Epidemiological study and clinical observation show that all more non-operation room work personnel of sickness rate such as operation room work personnel's miscarriage, bone marrow depression and malignant tumor are high; Anesthesia is polluted and is meant the pollution of volatile anesthetic to operating room air.Generally implementing to suck in the general anesthesia process, adopt open or anesthesia,semiopen method, anesthetic gases directly and room air mix, cause operating room air to pollute, even select semi-closed formula or closing type anesthetic machine for use, anesthetic gases still can be discharged the contaminated operation environment from face shield, exhaust pition, corrugated tubing etc.Obvious different anesthetis and anesthesias, its pollution level has nothing in common with each other, and in same operating room, the degree that anesthesia is polluted is also different everywhere.The highest near near concentration anesthetic machine and the patient respiration road, so the anesthesia personnel is bigger than operative doctor, the contaminated influence of nurse.Reported literature is arranged, compared the concentration of anesthesia personnel and surgeon's nasal cavity local anesthesia medicine, the two has notable difference, and the high 5-70 of the former the concentration ratio latter doubly.It is only accidental once that patient accepts inhalation anesthetic, and the narcot officer worked in the environment midium or long term of polluting, frequent contact anesthesia gas, thereby, even the anesthesia pollution concentration is low, still can influence healthy.Have the interior recovery room of report operating room, corridor, office, doctors and nurses's rest etc. all can record anesthetic gases again, visible anesthesia is polluted and has been related generally near many places.

Anesthesia is polluted and can be worked the mischief to human body by following approach, (1) the anesthetics molecule is to the direct detrimental effect of body cell, anesthetics enters and suppresses organism immune response in the human body, and phagocytotic leukocyte and lymphocyte transformation activity are suppressed, and weakens Abwehrkraft des Koepers; (2) in the GENERAL ANESTHETICS suction body, its metabolite directly or indirectly damages body cell.Many data think that the anesthesia pollution can cause operation room work personnel spontaneous current productive rate, infertility and monster incidence rate to raise, and comparing with matched group can be up to 1.3-2.0 doubly.Agnogenic infertility incidence rate is 12% among the Anesthetist, and matched group then is 6%.At the report of the relevant investigation Anesthetist cause of death, lymphsystem is died from discovery and reticuloendothelial system malignant tumor person is higher than matched group, and is higher with leukemic mortality rate among the women Anesthetist.Many survey results are thought the morbidity of operation room work personnel cancerous protuberance except that outside the Pass having with factors such as work strain, fatigues, may be relevant with the anesthetics cell growth inhibiting, cell division is slowed down and produce abnormal cleavage substance, influence the synthetic of DNA (deoxyribonucleic acid) (DNA) and restrain immune function in the body.

The utility model content

The purpose of this utility model provides a kind of novel waste gas of anesthesia automatic collecting device that can effectively overcome the problems referred to above generation, it can remain under the normal pressure and collect, can not influence the operate as normal of anesthetic machine, collection and purification cost are low, the efficient height almost can be discharged the waste gas of anesthesia and the patient expired gas sampling processing back of the anesthetic machine waste gas exhaust pipe interior 100% of flowing through outdoor.

The purpose of this utility model is achieved in that it comprises inlet, outlet and is connected between the two pressure buffer unit and vacuum solenoid, and the pressure buffer unit is parallel to the pipeline of air inlet one end, and vacuum solenoid is installed in pipeline gas outlet one end; The pressure buffer unit is provided with the construction of switch of control vacuum electromagnetic opening of valves; Pipeline between air inlet and the pressure buffer unit is provided with malleation relief valve and negative pressure relief valve;

In the said structure, the pressure buffer unit adopts the folded airbag cavity configuration, and folded airbag is enclosed in the cavity, and cavity wall is provided with and detects the photoswitch that the folded airbag stroke is used for controlling the vacuum electromagnetic opening of valves;

In the said structure, the pressure buffer unit adopts the swelling gasbag cavity configuration, it comprises swelling gasbag, swelling gasbag one side is provided with baffle plate, opposite side is provided with the removable cover that the upper end is rotationally connected and can swings in vertical direction, the long-armed opposite side that slides on removable cover of contact switch of control vacuum electromagnetic opening of valves;

When using this utility model, air inlet is linked to each other with the anesthetic machine outlet port, the gas outlet is connected with the negative pressure of vacuum source; When waste gas of anesthesia produces for a long time, pressure buffer arrangement works (folded airbag elongation or swelling gasbag become big), the construction of switch closure makes the vacuum solenoid unlatching that powers on it on, waste gas of anesthesia just can be by direct sucking-off under the negative pressure of vacuum source acts on; After waste gas of anesthesia is by a large amount of the discharge, loine pressure diminishes, pressure buffer arrangement works (folded airbag shorten or swelling gasbag diminish), and construction of switch is opened vacuum solenoid and is cut off the power supply and close it on, the negative pressure of vacuum source is cut off, to guarantee the relatively stable of pipeline air pressure; The positive negative pressure relief valve that is installed in the air inlet end can make gas circuit and atmosphere conducting when the vacuum solenoid operational failure, thereby avoids stopping to collect and too collecting the generation of phenomenon, guarantees the personal safety in the medical procedure.

Description of drawings

Below in conjunction with accompanying drawing in detail concrete structure of the present utility model is described in detail

Fig. 1 is the structural representation of this utility model embodiment one

Fig. 2 is the structural representation of another embodiment of this utility model

Fig. 3 has the structural representation of treatment facilities embodiment for this utility model

Fig. 4 has the structural representation of another embodiment of treatment facilities for this utility model

The specific embodiment

As shown in Figure 1, 2, this utility model comprises inlet, outlet 1,6 and is connected between the two pressure buffer unit 4 and vacuum solenoid 5; Pressure buffer unit 4 is parallel to the pipeline of air inlet 1 one ends, which is provided with the construction of switch that control vacuum solenoid 5 is opened, pressure buffer unit 4 can adopt folded airbag cavity configuration as shown in Figure 2, folded airbag 430 is enclosed in the cavity 410, cavity 410 sidewalls are provided with and detect the photoswitch 420 that folded airbag 430 strokes are used for controlling vacuum solenoid 5 unlatchings, also can adopt swelling gasbag cavity configuration as shown in Figure 1, it comprises swelling gasbag 421, swelling gasbag 421 1 sides are provided with baffle plate 411, opposite side is provided with removable cover 451, removable cover 451 can swing in vertical direction around its upper end pin joint, the opposite side of removable cover 451 contacts with long-armed 441 of contact switch 431, and contact switch 431 long-armed 441 is slidably on removable cover 451; After swelling gasbag 421 inflation, can promote removable cover 451 to contact switch 431 1 side oscillations, be synchronized with the movement thereby make it go up long-armed 441, and then make contact switch 431 work.

Vacuum solenoid 5 is installed in pipeline gas outlet 6 one ends, the break-make of control piper; In order to guarantee to make gas circuit and atmosphere conducting keep normal barometric pressure when vacuum solenoid 5 operational failures, to avoid waste gas of anesthesia is stopped to collect and too collecting the generation of phenomenon, guarantee the personal safety in the medical procedure, on pipeline between air inlet 1 and the pressure buffer unit 4, be provided with malleation relief valve 3 and negative pressure relief valve 2; When vacuum electromagnetic valve 5 meets accident when quitting work, the air pressure in the pipeline can rise, when air pressure reaches 0.05Kpa to 0.1Kpa, and 3 work of malleation relief valve, gas circuit and atmosphere conducting, the gas in the pipeline directly enters atmosphere; When vacuum electromagnetic valve 5 meets accident can't work the time, can form lasting aerofluxus, the air pressure in the pipeline can descend, when air pressure drop to-0.05Kpa is during to-0.1Kpa, negative pressure relief valve work, gas circuit and atmosphere conducting, extraneous air just can enter pipeline.

Shown in Fig. 3,4, in order to increase clean-up effect, on the pipeline between pressure buffer unit 4 and the vacuum solenoid 5, be in series with filtration, purification unit 7, present embodiment adopts the liquid cleaner structure, it comprises the cavity 710 of a sealing, is loaded with anesthetic gases dissolving liquid 740 in it, and the air inlet 720 of pipeline stretches into liquid level, on 730 liquid levels in gas outlet, this part also can require to use different structure such as activated carbon adsorption structure etc. according to concrete purification.

Claims

1, a kind of waste gas of anesthesia automatic collecting device, it is characterized in that: it comprises inlet, outlet and is connected between the two pressure buffer unit and vacuum solenoid, the pressure buffer unit is parallel to the pipeline of air inlet one end, and vacuum solenoid is installed in pipeline gas outlet one end; The pressure buffer unit is provided with the construction of switch of control vacuum electromagnetic opening of valves; Pipeline between air inlet and the pressure buffer unit is provided with malleation relief valve and negative pressure relief valve.

2, waste gas of anesthesia automatic collecting device as claimed in claim 1, it is characterized in that: the pressure buffer unit adopts the folded airbag cavity configuration, folded airbag is in a cavity, and cavity wall is provided with and detects the photoswitch that the folded airbag stroke is used for controlling the vacuum electromagnetic opening of valves.

3, waste gas of anesthesia automatic collecting device as claimed in claim 1, it is characterized in that: the pressure buffer unit adopts the swelling gasbag cavity configuration, it comprises swelling gasbag, swelling gasbag one side is provided with baffle plate, opposite side is provided with the removable cover that the upper end is rotationally connected and can swings in vertical direction, the long-armed opposite side that slides on removable cover of contact switch of control vacuum electromagnetic opening of valves.

4, waste gas of anesthesia automatic collecting device as claimed in claim 1 is characterized in that: be in series with the filtration, purification unit on the pipeline between pressure buffer unit and the vacuum solenoid.

5, waste gas of anesthesia automatic collecting device as claimed in claim 4, it is characterized in that: the filtration, purification unit is the cavity of a sealing, is loaded with anesthetic gases dissolving liquid in it, and the air inlet of pipeline stretches into liquid level, and the gas outlet is positioned on the liquid level.