CN111330126A

CN111330126A - Disinfection respirator

Info

Publication number: CN111330126A
Application number: CN202010148942.XA
Authority: CN
Inventors: 尹文生
Original assignee: Huazhong University of Science and Technology
Current assignee: Huazhong University of Science and Technology
Priority date: 2020-03-05
Filing date: 2020-03-05
Publication date: 2020-06-26

Abstract

The invention belongs to the field of medical equipment, and particularly discloses a disinfection respirator, which comprises a face mask, a main case and a disinfection case, wherein the face mask is provided with a breathing port for a user to breathe; the main case comprises a case body, and an air suction cylinder body and an air exhaust cylinder body which are arranged in the case body, wherein an air suction piston and an air exhaust piston are respectively arranged in the air suction cylinder body and the air exhaust cylinder body; the main machine breathing pipe joint is communicated with the breathing port and is respectively communicated with the air suction cylinder body and the air exhaust cylinder body through the one-way air exhaust port and the one-way air inlet, and each one-way air inlet and the one-way air exhaust port have one-way opening functions. The invention can effectively kill pathogens in the respiratory tract of a patient and prevent the gas with the pathogens from being directly discharged to the external space, thereby effectively blocking the transmission of the pathogens.

Description

Disinfection respirator

Technical Field

The invention belongs to the field of medical instruments, and particularly relates to a disinfection respirator.

Background

Respiratory infectious diseases (such as Severe Acute Respiratory Syndrome (SARS) and novel coronavirus pneumonia (COVID-19)) are a group of infectious diseases with relatively high transmission speed, and are mainly characterized in that pathogens are latent, live and propagate in the respiratory tract, then spread into the air through droplets formed by coughing and sneezing, and then inhaled into the respiratory tract by other people to realize the spread of the pathogens, namely, the main transmission path of the respiratory infectious diseases is the droplets. Of course, respiratory infections can also be transmitted by other means, such as contact transmission, fecal oral transmission, eyelid transmission, etc., but airborne transmission is the primary route of respiratory infections.

When a patient becomes infected with a pathogen of an upper respiratory infectious disease, the infection process usually has a latent phase and an attack phase. Generally, patients are not or less contagious in the latent phase, but are very contagious during and around the onset. For the novel coronavirus pneumonia, the virus has strong infectivity even in a latent period. Since respiratory infections are mainly carried out by droplet transmission, a large number of pathogens are present in the respiratory tract of patients, which if left uncontrolled, on the one hand are released in the outside air and make more healthy people become infected with pathogens, and on the other hand are extremely harmful to the patient himself, since pathogens in the respiratory tract can undoubtedly infect the patient himself and can be airborne to all organs in the respiratory tract.

In the traditional prevention and treatment of respiratory infectious diseases, the control of pathogen multiplication in patients is placed at the first place, and the killing of pathogens in the respiratory tract of patients is placed at the second place, because during the growth of many respiratory infectious pathogens, the release of pathogens is mainly carried out in patients. For example, influenza virus often attacks the respiratory tract, is released into the patient and propagates, and when it occurs, it releases a large amount of virus into saliva or the like in the respiratory tract of the patient, and then it spreads to the outside by sneezing or coughing, thereby showing infectivity. Although the pathogens of respiratory infectious diseases propagate in the body of a patient and release a large amount of pathogens only in the attack period, and the control of growth and propagation in the body is the key problem, timely killing of the pathogens in the respiratory air of the patient is very effective, because the concentration of the pathogens in the respiratory air is very high, and the self illness of the patient is aggravated if the pathogens are not killed in time.

Therefore, effective killing of pathogens in the respiratory tract of a patient is important for the control of infectious diseases, and there is a great need in the art to devise an effective disinfecting respirator to kill pathogens in the respiratory tract of a patient.

Disclosure of Invention

In view of the above-mentioned drawbacks and needs of the prior art, the present invention provides a disinfection respirator, which is designed to have an air inlet piston and an air outlet piston that move synchronously, and to open and close the air inlet and the air outlet of each piston along with the synchronous movement of the pistons, so as to exhaust the air exhaled by the patient into a sterilization box, thereby effectively killing the pathogens in the respiratory tract of the patient.

To achieve the above object, the present invention provides a disinfecting respirator comprising a face mask, a main chassis and a disinfecting chassis, wherein:

the mask is used for being worn on the face of a user and is provided with a breathing port for the user to breathe;

the mainframe box comprises a box body, and an air suction cylinder body and an exhaust cylinder body which are arranged in the box body, wherein an air suction piston is arranged in the air suction cylinder body, and an exhaust piston which moves synchronously with the air suction piston is arranged in the exhaust cylinder body; the box body is provided with a main engine breathing pipe joint, a first one-way air inlet communicated with the air suction cylinder body and a first one-way air outlet communicated with the air exhaust cylinder body, wherein the main engine breathing pipe joint is communicated with the breathing port, communicated with the air suction cylinder body through a second one-way air outlet and communicated with the air exhaust cylinder body through a second one-way air inlet; the first one-way air inlet, the second one-way air inlet, the first one-way air outlet and the second one-way air outlet all have one-way opening functions, the first one-way air inlet and the second one-way air inlet move synchronously with the inspiration piston and the exhaust piston and are opened when a user exhales and closed when the user inhales, and the first one-way air outlet and the second one-way air outlet move synchronously with the inspiration piston and the exhaust piston and are opened when the user inhales and closed when the user exhales;

the killing box is connected with the first one-way exhaust port and is used for disinfecting gas exhausted by a user.

Preferably, the first one-way air inlet is sleeved with an air suction cover, and the air suction cover is provided with a filter screen for filtering outside air.

Further preferably, the inhalation cover is connected to a drug solution tube or an oxygen tube.

As a further preferred feature, the first one-way air inlet, the second one-way air inlet, the first one-way air outlet and the second one-way air outlet preferably implement a one-way opening function through one-way valves.

Preferably, the check valve comprises a valve plate, a spring and a valve body with a through hole, the valve plate is mounted on the valve body and used for sealing the through hole of the valve body, one end of the spring is connected with the valve plate, the other end of the spring is connected with the inner wall of the through hole of the valve body and used for tensioning the valve plate to enable the valve plate to tightly seal the through hole of the valve body.

It is further preferred that the intake piston and the exhaust piston are connected to the same piston drive rod for synchronous movement of the two.

As a further preference, the piston drive rod is driven manually or electrically.

As a further preferred, the killing box is an electric heating killing box or a solution killing box.

As a further preferred, the electric heating killing box comprises a killing box body and a killing pipe arranged in the killing box body, wherein the killing pipe is internally provided with an electric heating wire and is used for disinfecting gas discharged by a user.

As a further preferred, the kill tube is serpentine or spiral.

As a further preferred, the solution killing tank comprises a killing tank for storing the killing solution, and a killing tube disposed in the killing tank, an inlet of the killing tube being connected to the first one-way exhaust port, and an outlet of the killing tube being immersed in the killing solution.

Preferably, the killing box body is provided with a killing box ventilating cover, and the killing box ventilating cover is provided with a dust screen.

As a further preferred, the mask comprises a mask body and mask straps arranged on both sides of the mask body.

Preferably, a sealing ring is provided on a rim of the cover body.

Generally, compared with the prior art, the above technical solution conceived by the present invention mainly has the following technical advantages:

the respirator with the air suction piston and the air exhaust piston which move synchronously is designed, and the air inlets and the air outlets of the pistons are opened or closed along with the synchronous movement of the pistons, so that the gas exhaled by a patient is discharged into the killing box, the purpose of effectively killing pathogens in the respiratory tract of the patient is further realized, the gas with viruses is prevented from being directly discharged to an external space, and the transmission of the pathogens is effectively blocked.

According to the invention, the air suction cover with the filter screen is arranged at the first one-way air inlet, so that the phenomenon that a user inhales air containing pathogens through breathing can be effectively avoided.

The one-way valve realizes the one-way opening function of each one-way air inlet and each one-way air outlet through the one-way valve, is simple and practical, is designed into a valve body comprising the valve block, the spring and the through hole so as to manufacture the one-way valve into a universal integral part, can change the installation direction of the valve block according to the use requirement, can obtain the one-way valves with different opening directions by plugging the valve block into the air inlet, and is convenient to install.

According to the invention, two killing boxes are designed according to actual use requirements, the killing effect can be improved by using the electric heating killing box, and the portability of the disinfection respirator can be improved by using the solution killing box.

The invention designs the killing pipe in the killing box into a snake shape or a spiral shape, which can prolong the killing time and improve the killing effect.

Drawings

FIG. 1 is a schematic diagram of a sterile respirator in accordance with an embodiment of the present invention;

FIG. 2 is a schematic view of a mask according to an embodiment of the present invention;

FIG. 3 is a sectional view taken along line A-A of FIG. 1;

FIG. 4 is a sectional view taken along line B-B of FIG. 1;

fig. 5 is a schematic structural diagram of a check valve provided in an embodiment of the present invention.

The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein:

101-cover body, 102-sealing ring, 103-cover belt, 104-connecting pipe joint, 105-breathing connecting pipe, 106-main machine breathing pipe joint, 107-second one-way air inlet, 108-first one-way air outlet, 109-air exhaust cylinder body, 110-air exhaust connecting pipe, 111-piston sealing ring, 112-air exhaust piston, 113-killing box ventilation cover, 114-killing box body, 115-electric heating wire, 116-killing pipe, 118-piston pull rod, 119-box body, 120-piston driving rod, 121-air suction cylinder body, 122-air suction piston, 123-first one-way air inlet, 124-air suction cover, 125-second one-way air outlet, 201-breathing opening, 301-valve plate, 302-spring, 303-steel wire, 304-valve body.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1, an embodiment of the present invention provides a sterilized respirator, which comprises a face mask to be worn on a user's head and having a size and a shape corresponding to the user's face, a main cabinet connected to the face mask and the sterilizing cabinet, respectively, for supplying external air into the user's body and supplying air exhaled from the user into the sterilizing cabinet, and a sterilizing cabinet for sterilizing and discharging clean air exhaled from the user.

The details of each component are described below one by one.

As shown in fig. 1-2, the mask is adapted to be worn on the face of a user and has a breathing opening 201 for the user to breathe. The mask comprises a mask body 101 and mask belts 103 arranged on two sides of the mask body 101, wherein the mask body 101 is used for isolating an inner space and an outer space, can be made of plastics, is matched with a facial structure below human eyes in shape, particularly, a mask edge part is matched with the mask edge part, a certain inner space is reserved between the mask body and the nose and the mouth of a person, and is similar to a mask, and particularly, a breathing hole 201 is arranged on the mask body 101. The straps 103 are used to secure the mask to the user's ears and are made of elastic cord, or non-elastic cord may be used.

To improve comfort, avoid damage to the skin by the mask, and improve the sealing of the mask, a sealing ring 102 is provided on the rim of the mask body 101. The sealing ring 102 is made of elastic soft cloth and the like, has a certain width, and can be tightened to a certain extent after being worn by a user, so that the sealing performance of the mask is ensured.

As shown in fig. 1, 3 and 4, the main cabinet includes a housing 119, and a suction cylinder 121 and a discharge cylinder 109 provided in the housing 119, wherein a suction piston 122 is provided in the suction cylinder 121, a discharge piston 112 is provided in the discharge cylinder 109, and the discharge piston 112 moves in synchronization with the suction piston 122. The box 119 is provided with a main breathing pipe joint 106, a first one-way air inlet 123 and a first one-way air outlet 108, wherein the main breathing pipe joint 106 is communicated with the breathing port 201, for example, the main breathing pipe joint 106 is connected with the connecting pipe joint 104 through a breathing connecting pipe 105 (e.g., a plastic hose), and then is connected with the breathing port 201 through the connecting pipe joint 104. The first one-way air inlet 123 is communicated with the inhalation cylinder 121, the first one-way exhaust port 108 is connected with the killing box and communicated with the exhaust cylinder 109, and the main machine breathing pipe joint 106 is communicated with the inhalation cylinder 121 through the second one-way exhaust port 125 and communicated with the exhaust cylinder 109 through the second one-way air inlet 107.

The inhalation piston 122 is used for delivering clean air or mixed gas of medicine, water, oxygen, etc. into the user, and the exhaust piston 112 is used for pressing the gas exhaled by the user into the sterilization chamber. The sizes of the suction cylinder body 121 and the exhaust cylinder body 109 can be determined according to the vital capacity of a user, the respiratory capacity of each time cannot be too large or too small and should exceed the ordinary respiratory capacity at ordinary times, the respiratory capacity can be controlled through the motion stroke of the piston when the respirator is used, the specific size is determined according to actual needs, and details are omitted here.

Specifically, the first one-way air inlet 123, the second one-way air inlet 107, the first one-way air outlet 108 and the second one-way air outlet 125 all have a one-way opening function, wherein the first one-way air inlet 123 and the second one-way air inlet 107 are opened when a user exhales and closed when the user inhales along with the synchronous motion of the inhalation piston 122 and the exhaust piston 112, and the first one-way air outlet 108 and the second one-way air outlet 125 are opened when the user inhales and closed when the user exhales along with the synchronous motion of the inhalation piston 122 and the exhaust piston 112.

In the present invention, it is preferable to adopt one-way valves to realize the one-way opening function of the first one-way air inlet 123, the second one-way air inlet 107, the first one-way air outlet 108 and the second one-way air outlet 125, that is, the one-way valves are respectively arranged in the first one-way air inlet 123, the second one-way air inlet 107, the first one-way air outlet 108 and the second one-way air outlet 125 to realize the one-way opening function. Of course, other structures capable of realizing the one-way opening function may be adopted, which is not described herein.

As shown in fig. 5, the check valve includes a valve plate 301, a spring 302, and a valve body 304 having a through hole, and the valve plate 301 is mounted on the valve body 304, for example, by a steel wire 303, for closing the through hole of the valve body. Specifically, one end of the steel wire 303 is connected to the valve plate 301, and the other end is connected to the upper end of the valve body 304, so that the valve plate 301 does not deviate from the through hole of the valve body 304 when opening and closing. One end of the spring 302 is connected with the valve plate 301, and the other end is connected with the inner wall of the through hole of the valve body 304, so as to tension the valve plate to tightly close the through hole of the valve body, and when the check valve is not used, the check valve is in a closed state (namely the valve plate closes the through hole of the valve body). During assembly, the check valves are inserted into the first one-way air inlet 123, the second one-way air inlet 107, the first one-way air outlet 108 and the second one-way air outlet 125 according to the direction of opening required in practice, for example, as shown in fig. 1, the check valves in the first one-way air inlet 123 and the second one-way air inlet 107 are installed with the valve body facing upward and the valve sheet facing downward, and the check valves in the first one-way air outlet 108 and the second one-way air outlet 125 are installed with the valve body facing downward and the valve sheet facing upward.

The working process of the check valves is briefly explained below, and when not in use, all the check valves are in a closed state. Specifically, the check valve in the first one-way intake port 123 is defined as a first intake valve, the check valve in the second one-way exhaust port 125 is defined as a first exhaust valve, the check valve in the second one-way intake port 107 is defined as a second intake valve, and the check valve in the first one-way exhaust port 108 is defined as a second exhaust valve. In use, through the synchronous movement of the intake piston 122 and the exhaust piston 112, for example, as shown in fig. 1, the intake piston 122 and the exhaust piston 112 move downwards synchronously, a user exhales with the intake, a first intake valve opens under the action of the internal-external pressure difference, a first exhaust valve closes, external gas enters the intake block 121, a second intake valve opens under the action of the internal-external pressure difference, a second exhaust valve closes, and gas exhaled by the user enters the exhaust block 109 through the exhalation port 201; the air suction piston 122 and the air exhaust piston 112 move upwards synchronously to compress the air in the air suction cylinder body and the air exhaust cylinder body, a user inhales air along with the air suction piston, the first air inlet valve is closed under the action of airflow and spring restoring force, the first air exhaust valve is opened under the action of internal and external pressure difference, the external air inhaled in the air suction cylinder body 121 enters the mask through the breathing port 201 and is inhaled into the body by the user, the second air inlet valve is closed under the action of airflow and spring restoring force, the second air exhaust valve is opened under the action of internal and external pressure difference, and the air exhaled by the user inhaled in the air exhaust cylinder body 109 enters the sterilization box through the first one-way air exhaust port 108.

In order to prevent the polluted air from being sucked, the first one-way air inlet 123 is sleeved with the air suction cover 124, the air suction cover 124 is provided with a filter screen to filter the external air sucked by a user, only the filter membrane on the filter screen can be replaced, and other components can be reused. Preferably, the inhalation cover 124 is connected to a medicine tube so that medicine or the like can be squeezed into the case 119, and the medicine can be inhaled into the air upon inhalation and then delivered into the patient. An oxygen tube can also be inserted into the inspiration cover to provide oxygen for the patient.

To ensure synchronous movement of the intake piston 122 and the exhaust piston 112, the intake piston 122 and the exhaust piston 112 are connected to the same piston drive rod 120, and the particular intake piston 122 and the exhaust piston 112 may be connected to the same piston drive rod 120 by a piston rod 118. A support rod can be arranged between the two piston pull rods to keep the translation and the stability of the two piston pull rods. Specifically, the piston driving rod 120 is driven manually or electrically, for example, manually, i.e., manually pulling and pushing the piston driving rod to drive the piston to move, or a motor may be installed at the position, and the piston driving rod 120 is connected to an output shaft connector of the motor, so as to adjust the rotation speed of the motor, and the motor drives the piston to move.

In order to ensure airtightness and prevent gas leakage from the cylinder, piston seal rings 111 are provided on both the intake piston 122 and the exhaust piston 112.

As shown in fig. 1, the sterilizing compartment is connected to a first one-way exhaust port 108 for sterilizing gas discharged from a user, and is connected to the first one-way exhaust port 108 via an exhaust connection pipe 110.

Specifically, the killing box is preferably an electric heating killing box suitable for severe patients, as shown in fig. 1, the electric heating killing box comprises a killing box body 114 and a killing tube 116 arranged in the killing box body 114, and a heating wire 115 is arranged in the killing tube 116 for disinfecting gas exhausted by a user and killing pathogens in the gas. The killing tube 116 has an inlet connected to the first one-way vent 108, and in particular, to the first one-way vent 108 via an exhaust connection tube 110, and an outlet located within the killing chamber 114. Preferably, kill tube 116 is serpentine or spiral shaped to increase gas sterilization time. The heating wire 115 is electrically connected to reach the required temperature, and the temperature can be adjusted by controlling the temperature control plate.

In order to improve the portability of the disinfection respirator, the killing box can also be designed as a solution killing box, is suitable for mild patients and is convenient for the patients to walk. The solution killing box comprises a killing box body 114 and a killing pipe 116 arranged in the killing box body 114, wherein the killing box body 114 is used for storing a killing solution, the killing solution is used for killing pathogens in gas, the inlet of the killing pipe 116 is connected with the first one-way exhaust port 108, particularly connected with the first one-way exhaust port 108 through an exhaust connecting pipe 110, and the outlet of the killing pipe 116 is immersed in the killing solution, so that the gas exhaled by a user is discharged into the killing solution, and the pathogens are effectively killed. When in use, the killing box is carried on the body of a patient, which is simple and convenient. The killing solution is a solution for killing pathogens, and can be medical alcohol, strong acid, etc.

In order to facilitate the gas after sterilization to be discharged out of the sterilization box and to prevent dust from entering the sterilization box, a sterilization box ventilation cover 113 is provided on the sterilization box body 114, and a dust screen is provided on the sterilization box ventilation cover 113 to prevent dust from entering the sterilization box body.

The working process of the disinfection respirator of the invention is as follows:

after the user wears the disinfection respirator, the breathing of the user follows the movement of the piston. When the exhaust piston 112 is pulled downward, the user exhales, the first one-way exhaust port 108 is closed, the second one-way intake port 107 is opened, and the exhaust gas in the body enters the exhaust piston 112 through the second one-way intake port 107 via the breathing connection pipe 105. Meanwhile, the air suction piston 122 synchronously moves downwards, the first one-way air inlet 123 is opened, the second one-way air outlet 125 is closed, the external air is filtered by the air suction cover 124 and is sucked into the air suction piston 122 through the first one-way air inlet 123, and the liquid medicine and the like in the liquid medicine pipe are adsorbed by the sucked air to form mixed gas; when the two pistons are pushed upwards at the same time, the first one-way air inlet 123 and the second one-way air inlet 107 are closed at the same time, the first one-way air outlet 108 and the second one-way air outlet 125 are opened at the same time, the waste gas passes through the first one-way air outlet 108 and is conveyed to the killing box through the exhaust connecting pipe 110 to be killed and discharged to the external space, and the mixed gas absorbed with the liquid medicine passes through the second one-way air outlet 125 and enters the body of the user through the breathing connecting pipe 105 and the mask. The above processes are repeated, so that the aims of killing and discharging pathogens in the waste gas can be fulfilled, the user is ensured to inhale air without pathogens, and the pathogens in the discharged gas are effectively killed.

The sterile respirator of the present invention is suitable for use with confirmed or suspected patients, particularly patients who have experienced dyspnea. In order to reduce the physical consumption, an electric driving mode can be adopted, namely, an electric motor is arranged to drive the piston to move. The larger the volume per breath, the more beneficial the elimination of pathogens, insofar as the patient can tolerate, but care must be taken in the case of the patient during the procedure. If an electric driving mode is used, the rotating speed of the motor and the stroke of the piston need to be adjusted, so that a patient has a better treatment effect when using the electric respirator, a certain comfort level is ensured, and possible harm caused by forced breathing is prevented. Whether manual or electric, the state of the patient must be closely followed and timely adjusted according to the situation. As the device is mainly used for patients, the position of the killing box can be fixed, so that a more effective and longer-lasting killing mode can be used, namely an electrothermal killing mode is used, namely the discharged waste gas passes through a high-heat electric heating wire to physically and directly kill pathogens. The killing solution can also be used, so that electric energy is not needed, and the application place is wider.

The disinfection respirator designed by the invention essentially helps patients to breathe deeply and eliminates pathogens in the air of the respiratory tract of the patients during the breathing process by using the disinfection respirator. The air-breathing-type sterilization device is characterized in that waste gas in a patient body is sucked out when the patient exhales, then the waste gas is sent to a sterilization box for pathogen sterilization, and finally the sterilized gas is discharged into an external space. When helping the patient to inhale, filter the inspiratory outside air through the filter screen to mix into mist with medicine liquid, oxygen etc. and press in the patient respiratory at last. In short, the respirator increases the respiratory capacity of a patient or helps the patient to breathe, and pathogen killing is carried out on the exhaust gas exhausted by the patient, so that the clean air exhausted to the outside is ensured.

The disinfection respirator of the invention can not only provide air filtered by pathogens for a patient, but also exhaust the exhaust gas exhaled by the patient to the outside air after being killed, thereby achieving the effects of preventing the patient from polluting the air in the external space and treating the patient, and the function of the disinfection respirator is different from that of the existing commonly used respirator.

The disinfection respirator has simple manufacturing structure, convenient operation and low price, can be applied to patients in large quantity, effectively blocks each patient, namely an infection source, from releasing pathogens to the outside, thereby keeping the outside air clean, and simultaneously reducing the concentration of the pathogens in the air in the patient body, thus being beneficial to the prevention and treatment of the whole epidemic situation and the individual patients.

The disinfection respirator mainly aims at patients with mild symptoms or less serious illness, and is mainly designed for killing pathogens in the bodies of the patients and reducing the pollution of air in the external space, so that the disinfection respirator has a protection effect and a treatment effect. For patients with mild symptoms or less serious illness, the protective effect of the disinfection respirator is to kill the toxic gas exhaled by the disinfection respirator and prevent the toxic gas from polluting the external air, so that the concentration of pathogens in the respiratory tract space of the patients is effectively reduced, and the infection of the pathogens to the uninfected organisms in the patients is avoided. Because the disinfection respirator can kill pathogens in the body of a patient, the air transmission path of the pathogens can be effectively blocked, the number of the pathogens which are transmitted from one part of the lung to another part which is not adjacent to the lung through air transmission is reduced, and thus large-area infection of the lung of the patient is effectively avoided.

The effect of the disinfection respirator depends on the air infection rate of infectious diseases, and if the proportion of pathogens which are propagated and released in the air is large, the treatment effect is very ideal. Even if the proportion of pathogens released in the air is not large, the ability to kill this portion of pathogens can serve as a very valuable adjunct therapy. Because the disinfection respirator also has the functions of adding liquid medicine, oxygen and the like, the disinfection respirator also has the atomization effect. In a word, the disinfection respirator has positive effects on prevention and treatment of respiratory infectious diseases, and is particularly suitable for prevention and treatment of infectious diseases such as novel coronavirus pneumonia.

The invention has simple structure and convenient manufacture, and is a device for helping patients to breathe deeply so as to suck out toxic gas in the bodies of the patients as much as possible, and the toxic gas is discharged into the air in the external space after being disinfected, thereby saving the patients, protecting the air in the external space, blocking the spread of diseases, effectively blocking the pathogen release of the patients to the external space and protecting the external air. Because of simple structure, easy manufacture and convenient operation, the manufacturing cost is low, and the device can be produced in large scale to meet the treatment requirements of mild or non-critical patients. Because the only required to be replaced is the filter screen, the mask and other parts can be directly cleaned by the disinfectant and can be reused, the use cost can be greatly reduced, and the invention has great economic benefit.

The present invention is specifically designed to accommodate the manufacture of sterile respirator products in general. It will be apparent to one of ordinary skill in the art that the product structure, material selection, and manufacturing method of the present invention can be implemented in a general manufacturing facility, for example, any manufacturing facility such as a medical device manufacturing facility, a plastic product manufacturing facility, and the like.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A disinfecting respirator, which is characterized by comprising a face mask, a main case and a killing case, wherein:

the mask is used for being worn on the face of a user and is provided with a breathing port (201) for the user to breathe;

the main case comprises a case body (119), and an air suction cylinder body (121) and an air exhaust cylinder body (109) which are arranged in the case body (119), wherein an air suction piston (122) is arranged in the air suction cylinder body (121), and an air exhaust piston (112) which moves synchronously with the air suction piston (122) is arranged in the air exhaust cylinder body (109); the box body (119) is provided with a main machine breathing pipe joint (106), a first one-way air inlet (123) communicated with the air suction body (121) and a first one-way air outlet (108) communicated with the air discharge body (109), wherein the main machine breathing pipe joint (106) is communicated with the breathing port (201), communicated with the air suction body (121) through a second one-way air outlet (125) and communicated with the air discharge body (109) through a second one-way air inlet (107); the first one-way air inlet (123), the second one-way air inlet (107), the first one-way air outlet (108) and the second one-way air outlet (125) have a one-way opening function, the first one-way air inlet (123) and the second one-way air inlet (107) are opened along with the synchronous motion of the air suction piston (122) and the air discharge piston (112) when a user exhales air and are closed during inhalation, and the first one-way air outlet (108) and the second one-way air outlet (125) are opened along with the synchronous motion of the air suction piston (122) and the air discharge piston (112) when the user inhales air and are closed during exhalation;

the killing box is connected with the first one-way exhaust port (108) and is used for disinfecting gas exhausted by a user.

2. The sterilizing respirator of claim 1, wherein the first one-way air inlet (123) is sleeved with an air suction cover (124), and the air suction cover (124) is provided with a filter screen to filter external air; preferably, the inhalation cover (124) is connected with a drug water tube or an oxygen tube.

3. The disinfecting respirator of claim 1, wherein the first one-way air inlet (123), the second one-way air inlet (107), the first one-way air outlet (108), and the second one-way air outlet (125) perform a one-way opening function, preferably through one-way valves.

4. A disinfecting respirator as claimed in claim 3, characterized in that said one-way valve comprises a valve plate (301), a spring (302) and a valve body (304) with a through hole, said valve plate (301) is mounted on the valve body (304) for closing the through hole of the valve body, one end of said spring (302) is connected with the valve plate (301), and the other end is connected with the inner wall of the through hole of the valve body (304) for tightening said valve plate (301) to tightly close the through hole of the valve body.

5. The sterilizing respirator of claim 1, wherein the inhalation piston (122) and the exhalation piston (112) are connected to the same piston drive rod (120) for synchronous movement; preferably, the piston drive rod (120) is driven manually or electrically.

6. The sterilized respirator of claim 1, wherein the kill chamber is an electro-thermal kill chamber or a solution kill chamber.

7. The sterilizing respirator of claim 6, wherein the electrically heated sterilizing compartment comprises a sterilizing compartment (114) and a sterilizing duct (116) disposed within the sterilizing compartment (114), the sterilizing duct (116) having an electrically heated wire (115) disposed therein for sterilizing gas exhausted from a user; preferably, the kill tube (116) is serpentine or spiral.

8. The sterilizing respirator of claim 6, wherein the solution kill tank comprises a kill tank (114) and a kill tube (116) disposed within the kill tank (114), the kill tank (114) for storing the kill solution, the kill tube (116) having an inlet connected to the first one-way vent (108), the kill tube (116) having an outlet submerged in the kill solution.

9. A disinfecting respirator as claimed in claim 7 or 8, characterized in that said disinfecting chamber body (114) is provided with a disinfecting chamber vent cover (113), and said disinfecting chamber vent cover (113) is provided with a dust screen.

10. The sterile respirator of any of claims 1-9, wherein the face mask comprises a mask body (101) and mask straps (103) disposed on either side of the mask body (101); preferably, a sealing ring (102) is arranged on the cover edge of the cover body (101).