CN111265753A - Negative pressure hood for transporting respiratory infectious disease patient - Google Patents
Negative pressure hood for transporting respiratory infectious disease patient Download PDFInfo
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- CN111265753A CN111265753A CN202010202681.5A CN202010202681A CN111265753A CN 111265753 A CN111265753 A CN 111265753A CN 202010202681 A CN202010202681 A CN 202010202681A CN 111265753 A CN111265753 A CN 111265753A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/06—Respiratory or anaesthetic masks
- A61M16/0605—Means for improving the adaptation of the mask to the patient
- A61M16/0627—Means for improving the adaptation of the mask to the patient with sealing means on a part of the body other than the face, e.g. helmets, hoods or domes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/18—General characteristics of the apparatus with alarm
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
- A61M2205/3337—Controlling, regulating pressure or flow by means of a valve by-passing a pump
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/35—Communication
- A61M2205/3576—Communication with non implanted data transmission devices, e.g. using external transmitter or receiver
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/35—Communication
- A61M2205/3576—Communication with non implanted data transmission devices, e.g. using external transmitter or receiver
- A61M2205/3584—Communication with non implanted data transmission devices, e.g. using external transmitter or receiver using modem, internet or bluetooth
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/35—Communication
- A61M2205/3576—Communication with non implanted data transmission devices, e.g. using external transmitter or receiver
- A61M2205/3592—Communication with non implanted data transmission devices, e.g. using external transmitter or receiver using telemetric means, e.g. radio or optical transmission
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- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The negative pressure hood comprises a hood body, an exhaust pipe and an exhaust purification device, wherein the upper end of the exhaust pipe is arranged in the hood body, and the lower end of the exhaust pipe is connected with the exhaust purification device; the head cover body comprises a cover shell, a neck limiting sealing belt, a shoulder and chest lower hem and a fixing belt thereof, a face transparent elastic air bag, an oxygen inlet pipe and two side transparent elastic air storage bags; the cover body supports the periphery of the head of a transported patient, the transparent air bag with the face elasticity and the transparent air storage bags with the two side elasticity are made of elastic films, the transparent air bag with the face elasticity is located in the front of the eyes of the transported patient, the transparent air storage bags with the two side elasticity are respectively located on the two outer sides of the ears of the transported patient, the negative pressure hood can be worn by the patient, air exhaust and purification devices can be started to exhaust air outside the air inside the negative pressure hood, negative pressure can be kept inside the negative pressure hood, and the sunken degrees of the elastic films of the transparent air bag with the face elasticity and the two side elasticity can display the negative pressure condition in the negative pressure. It has good isolation effect and low transportation cost.
Description
Technical Field
The invention relates to the field of medical protective articles, in particular to a negative pressure hood for transporting respiratory infectious disease patients.
Background
It is known that the recent new type of coronavirus, referred to as SARS and ebola, has been a trend of more and more severe infectious diseases in recent years, which not only seriously affects the production and life of people, but also brings great risk to first-line medical care personnel, and even enables people to spread through droplets and aerosols. Therefore, the transport of such respiratory infectious patients must be extremely strict to avoid infection of close-distance contagions. At present, the transfer of the respiratory infectious disease patient is mainly completed by a mask and a negative pressure chamber, so that pathogenic microorganisms (such as viruses) exhaled by the patient are prevented from polluting the surrounding air and infecting diseases to surrounding healthy people (medical care personnel and other people). However, the negative pressure chamber is relatively bulky (requiring the entire patient to be placed and sealed), making transport difficult, and also greatly limiting patient movement (including urination and defecation), making patient transport complicated, expensive, and difficult to replace in the event of a failure. On the other hand, respiratory diseases are also easily transmitted by touching the mouth and nose with the hands of the patient and then touching other objects or people. At the same time, there is excessive protection against respiratory diseases that are primarily airborne and contact-borne. While others, such as masks and protective clothing, cannot completely avoid extremely fine pathogens (such as viruses) leaking from gaps of masks and the like, and are difficult to block transmission paths of aerosols and the like. But the infectious disease patients who need and can transport the infectious disease patients are not particularly serious, and most of the infectious disease patients can move by themselves or can transport the infectious disease patients by using a wheelchair. These patients, if placed in a negative pressure cabin, would greatly increase transport difficulty and psychological resistance of the patients.
In order to effectively isolate, the negative pressure hood is also applied in the prior industry, but the prior negative pressure hood has a very complex structure, the negative pressure is maintained by using very large-flow airflow, the endurance time of the mobile power supply is short, and the eyes and ears of a user are hard to dry quickly; or the air flow is not enough, especially the internal negative pressure is difficult to maintain when the patient exhales, the accurate barometer is needed to monitor at any time, and the structure is complex. Tidal fluctuation of the demand of gas in the hood during expiration and inspiration and the challenge of maintaining the internal negative pressure all the time are formed, overlarge airflow is not easy to lose the internal negative pressure but is difficult to blow, the endurance time of equipment is shortened, and the monitoring of a real-time barometer is complex and unreliable.
Therefore, it has become a difficult problem that it is difficult to solve in the conventional portable device how to solve the problem that the air supply amount is basically unchanged, the air demand amount greatly fluctuates, and the negative pressure is kept at the minimum.
Disclosure of Invention
In order to solve the technical problem, a negative pressure hood for transporting patients with respiratory infectious diseases is provided, the negative pressure hood can basically keep the respiratory air supply quantity unchanged and the air demand quantity fluctuates greatly when the patients transport and wear the negative pressure in the hood, and the negative pressure hood can be conveniently carried and has low manufacturing cost on the premise of not influencing isolation protection, so that the transportation cost is lowered.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a negative pressure hood for transporting respiratory infectious disease patients comprises a hood body, an exhaust pipe and an exhaust purification device, wherein the upper end of the exhaust pipe is arranged in the hood body, and the lower end of the exhaust pipe is connected with the exhaust purification device;
the head cover body comprises a cover shell, a neck limiting sealing band, a shoulder and chest hem, a face elastic transparent air bag and two side elastic transparent air storage bags; the periphery of the bottom edge of the housing is connected with a shoulder-chest hem and a fixing belt thereof, and a neck limiting sealing belt is arranged at the joint of the shoulder-chest hem and the housing; the front part of the housing is provided with a face elastic transparent air bag;
the air extraction and purification device comprises a battery pack, a filter and an exhaust fan which are arranged in a containing box, and the top of the containing box is also provided with an air volume adjusting knob which is electrically connected with the exhaust fan through an electric control board and can control the rotating speed of the exhaust fan; the filter is arranged at the air inlet of the exhaust fan, and the air outlet of the exhaust fan faces outwards; the battery pack is electrically connected with the exhaust fan through a control circuit on the electric control board;
the cover body supports the head periphery of a transported patient, the transparent air bag with the elasticity of the face and the transparent air bag with the two side positions are made of elastic films, the transparent air bag with the elasticity of the face is located in the front of the eyes of the transported patient, the transparent air bags with the elasticity of the two side positions are respectively located on the outer sides of the two ears of the transported patient, and the negative pressure hood can be worn by the patient when the exhaust fan is started to exhaust and filter the internal gas of the exhaust fan, so that the negative pressure hood keeps negative pressure, and the degree of invagination of the elastic films of the transparent air bag with the elasticity of the face and the two side positions shows the negative pressure condition in the negative pressure.
Preferably, the housing comprises the inner skin layer and the outer skin layer that are formed with the gasbag in the middle of aerifing the back, just inner skin layer and outer skin layer are the soft materials shaping to be equipped with charging connector and inflation plug on the outer skin layer, and the housing is in facial elasticity transparent gasbag top department is equipped with the oxygen intake pipe.
Preferably, the cover is made of hard transparent material, and an oxygen inlet pipe is arranged above the elastic transparent facial air bag.
Preferably, the shoulder-chest lower hem is downwards connected with two shoulder straps and a chest strap at the shoulder part worn by the patient, and the lower ends of the shoulder straps extend towards two sides of the waist part of the patient.
Preferably, the upper end of the air exhaust pipe is connected to the cover shell below the face elastic transparent air bag, and the air exhaust opening of the air exhaust pipe is close to the outside of the mouth and nose part of the patient.
Preferably, a waistband is fixedly arranged on the back of the containing box of the air extraction and purification device, and the air extraction and purification device is fixed on the chest and abdomen of the patient by being tied on the waist of the patient.
Preferably, the containing box is further provided with a sound-light alarm for voltage and load abnormity, the sound-light alarm is in signal connection with the exhaust fan through a control circuit and can send out a sound-light alarm signal when the exhaust fan is stopped accidentally or the exhaust pipe is blocked.
Preferably, the whole or part of the face elastic transparent air bag and the two side elastic transparent air storage bags are of flexible film structures, and at least one elastic belt is fixed on the surface of the flexible film.
Preferably, the electric control board is provided with a wireless communication positioning module, the inner side of one side elastic transparent air storage bag is provided with a micro-headset microphone, and the micro-headset microphone can be in bidirectional interconnection and intercommunication with an external intelligent command system through the wireless communication positioning module by adopting WiFi.
Preferably, a circular through hole penetrating through the interior of the hood is formed in the rear portion or the side face of the hood shell, an outer ring made of hard materials is arranged on the periphery of the outer opening face of the circular through hole, and a layer of radially-cut elastic film is arranged in the circular through hole, so that an air suction pipe can conveniently enter the hood and obvious air leakage is avoided.
According to the technical scheme, the front part and two sides of the negative pressure hood are designed into the face elastic transparent air bag and the two side elastic transparent air storage bags by using the elastic film or the flexible film and the elastic belt, and the inside of the hood is used as a negative pressure storage air chamber which is used for adjusting the air flow and is supported only by the internal air pressure. The exhaust fan is started to exhaust air to enable the hood to form negative pressure when a patient is transferred, the negative pressure in the hood is increased by increasing the invagination through the elastic film or the flexible film when the patient inhales, the negative pressure environment is still formed in the hood by reducing the invagination through the elastic film or the flexible film when the patient exhales, and the negative pressure reserve in the hood is reduced (but still a small amount of invagination). As long as elastic film or flexible film keep the invagination of certain degree, just can guarantee the inside negative pressure of hood, elastic film's the degree of invagination also is the reliable instruction of inside atmospheric pressure simultaneously, if the negative pressure is too little (invagination is not obvious), the inspection neck gap and discharge gap are too big back, and the user can improve the air extraction volume of exhaust fan through adjust knob. If the elastic films or the flexible films of the face elastic transparent air bag and the two side elastic transparent air storage bags are too large in inward sinking, even the elastic films or the flexible films of the face elastic transparent air bag touch the nose, or the elastic films or the flexible films of the side elastic transparent air storage bags are too large in inward sinking and touch two ears, the situation that air is exhausted too much is shown, the air exhaust amount of the exhaust fan can be properly adjusted, the air in the hood is kept to be exhausted outside and filtered into clean air, the wearing comfort level is improved, and the service life of the battery is prolonged. The negative pressure hood can prevent the spread of diseases transmitted through the air, protect healthy people working in the surrounding environment, and can draw out the air from the semi-closed hood, filter the air and discharge the air to the surrounding environment, so that the negative pressure hood can completely avoid the infection of pathogens in the air exhaled by a patient to the surrounding healthy people when a user breathes smoothly. Meanwhile, after the patient wears the head cover, the hands are sanitary, and the patient can not contact the mouth and nose parts with pathogens after changing cleaning clothes, so that the way of contacting infection is cut off. Through the improvements, the purposes of novel design, reasonable structure and good application effect are achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a negative pressure hood for transporting respiratory infectious disease patients according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a negative pressure hood for transporting patients with respiratory infectious diseases, disclosed in embodiment 2 of the present invention.
The corresponding part names indicated by the numbers and letters in the drawings:
1. air pumping pipe 21, cover 22, neck limiting sealing belt 23, shoulder and chest lower hem 24, face elastic transparent air bag 25, oxygen air inlet pipe 26, side elastic transparent air storage bag 27, inflating nozzle 28, inflating plug 29, elastic belt 31, accommodating box 32, battery pack 33, filter 34, exhaust fan 35, air volume adjusting knob 4, shoulder belt 5, waist belt 6, audible and visual alarm 7, micro earphone microphone 8, circular through hole 9, outer ring
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention will be described in further detail with reference to examples and specific embodiments.
Example 1.
As shown in fig. 1, a negative pressure hood for transporting respiratory infectious disease patients comprises a hood body, an air exhaust pipe 1 and an air exhaust purification device, wherein the upper end of the air exhaust pipe 1 is arranged in the hood body, and the lower end of the air exhaust pipe is connected with the air exhaust purification device;
the head cover body comprises a cover shell 21, a neck limiting sealing band 22, a shoulder and chest lower hem 23, a face elastic transparent air bag 24, an oxygen inlet pipe 25 and two side elastic transparent air storage bags 26; the periphery of the bottom of the housing 21 is connected with a shoulder-chest lower hem 23 and a fixing belt thereof, and a neck limiting sealing belt 22 is arranged at the joint of the shoulder-chest lower hem 23 and the housing 21; the front part of the cover 21 is provided with a face elastic transparent air bag 24, and the cover 21 above the face elastic transparent air bag 24 is provided with an oxygen inlet pipe 25;
the air extraction and purification device comprises a battery pack 32, a filter 33 and an exhaust fan 34 which are arranged in a containing box 31, the top of the containing box 31 is also provided with an air volume adjusting knob 35, the air volume adjusting knob 35 is electrically connected with the exhaust fan and the exhaust fan 34 through an electric control board, and the rotating speed of the exhaust fan 34 can be controlled; the filter 33 is arranged at the air inlet of the exhaust fan 34, and the air outlet of the exhaust fan 34 faces outwards; the battery pack 32 is electrically connected with the exhaust fan 34 through a control circuit on the electric control board;
the cover 21 props up the head periphery being transported the patient, the transparent gasbag of facial elasticity 24 and the transparent gas storage bag of two side position elasticity 26 are the elastic film material, and the transparent gasbag of facial elasticity 24 is located the eye the place ahead of transporting the patient, and two transparent gas storage bags of side position elasticity 26 are located the both ears outside of transporting the patient respectively, and can wear at the patient the negative pressure hood makes the inside negative pressure that keeps of negative pressure hood when starting exhaust fan 34 and take out its inside gas outward and filter, and the elastic film invagination degree of the transparent gasbag of facial elasticity 24 and the transparent gas storage bag of two side position elasticity 26 shows the negative pressure condition in the negative pressure hood.
Meanwhile, the housing 21 is composed of an inner skin layer and an outer skin layer which are formed with an air bag in the middle after inflation, and the inner skin layer and the outer skin layer are both formed by soft materials and are provided with an inflation nozzle 27 and an inflation plug 28. When in use, the cover 21 can be supported by filling the air bag with air under certain pressure from the inflating nozzle 27 and plugging the air bag by the inflating plug 28.
In order to be convenient to fix on the patient during transfer, the shoulder-chest lower hem 23 is also connected with two shoulder belts 4 downwards on the shoulders worn by the patient, and the lower ends of the shoulder belts 4 extend towards the two sides of the waist of the patient, so that the shoulder belts can be tied and fixed around the armpits.
The upper end of the exhaust tube 1 is connected to the cover 21 below the face elastic transparent air bag 24, and the exhaust opening of the exhaust tube is close to the outside of the mouth and nose part of the patient, so that the gas exhaled by the patient can be exhausted and filtered out in time.
In addition, for better fixing the air extraction and purification device, the back of the containing box 31 of the air extraction and purification device is fixedly provided with a waistband 5, and the air extraction and purification device is fixed on the chest and abdomen of a patient by being tied on the waist of the patient, so that the damage caused by pulling the air extraction pipe 1 due to shaking during the transfer of the air extraction and purification device is prevented. And the containing box 31 is also provided with a sound-light alarm 6 for voltage and load abnormity, the sound-light alarm 6 is in signal connection with the exhaust fan 34 through a control circuit, and can send out a sound-light alarm signal when the exhaust fan 34 is stopped accidentally or the exhaust pipe 1 is blocked, so that a worker is reminded to take corresponding measures in time.
Be equipped with wireless communication orientation module on the automatically controlled board, one of them side position elasticity transparent gas storage bag 26 inboard is equipped with miniature earphone microphone 7, miniature earphone microphone 7 accessible wireless communication orientation module adopts two-way interconnection of wiFi and outside intelligent command system to outside intelligent command system can in time know the position of wearing person and equipment operating conditions such as exhaust fan 34 or the affairs of giving up an appointment, also can artifical warning the user of wearing to the headgear, the person of wearing has emergency simultaneously and also can reports to outside intelligent command system.
The rear part or the side surface of the housing 21 is provided with a circular through hole 8 penetrating through the interior of the head cover, the periphery of the outer opening surface of the circular through hole 8 is provided with an outer ring 9 made of hard material, and a layer of radially-cut elastic film is arranged in the circular through hole, so that an external standby air suction pipe can conveniently enter the head cover and obvious air leakage can be avoided.
Example 2.
As shown in fig. 2, a negative pressure hood for transporting respiratory infectious disease patients comprises a hood body, an air exhaust pipe 1 and an air exhaust purification device, wherein the upper end of the air exhaust pipe 1 is arranged in the hood body, and the lower end of the air exhaust pipe is connected with the air exhaust purification device;
the head cover body comprises a cover shell 21, a neck limiting sealing band 22, a shoulder and chest lower hem 23, a face elastic transparent air bag 24, an oxygen inlet pipe 25 and two side elastic transparent air storage bags 26; the bottom edge of the housing 21 is connected with a shoulder-chest lower hem 23 towards the periphery, and a neck limiting sealing strip 22 is arranged at the joint of the shoulder-chest lower hem 23 and the housing 21; the front part of the cover 21 is provided with a face elastic transparent air bag 24, and the cover 21 above the face elastic transparent air bag 24 is provided with an oxygen inlet pipe 25;
the air extraction and purification device comprises a battery pack 32, a filter 33 and an exhaust fan 34 which are arranged in a containing box 31, the top of the containing box 31 is also provided with an air volume adjusting knob 35, and the air volume adjusting knob 35 is electrically connected with the exhaust fan 34 and can control the rotating speed of the exhaust fan 34; the filter 33 is arranged at the air inlet of the exhaust fan 34, and the air outlet of the exhaust fan 34 faces outwards; the battery pack 32 is electrically connected with the exhaust fan 34 through a control circuit;
cover 21 is the transparent form material shaping of stereoplasm, and it is peripheral at the head of being transported the patient to prop up when wearing, the transparent gasbag of facial elasticity 24 and two side position elasticity transparent gas storage bags 26 the transparent gasbag of facial elasticity and two side position elasticity transparent gas storage bags are flexible film structure, and flexible film is fixed with elastic belt 29 on the surface, and the transparent gasbag of facial elasticity 24 is located the eye the place ahead of transporting the patient, and two side position elasticity transparent gas storage bags 26 are located the both ears outside of transporting the patient respectively to can be worn at the patient the negative pressure hood is started when exhaust fan 34 takes out its inside gas and filters, makes the inside negative pressure that keeps of negative pressure hood, and the flexible film of the transparent gasbag of facial elasticity 24 and two side position elasticity transparent gas storage bags 26 sunken degree under elastic belt 29's effect shows the negative pressure condition in the negative pressure hood.
In order to be convenient to fix on the patient during transfer, the shoulder-chest lower hem 23 is also connected with two shoulder belts 4 downwards on the shoulders worn by the patient, and the lower ends of the shoulder belts 4 extend towards the two sides of the waist of the patient, so that the shoulder belts can be tied and fixed around the armpits.
The upper end of the exhaust tube 1 is connected to the cover 21 below the face elastic transparent air bag 24, and the exhaust opening of the exhaust tube is close to the outside of the mouth and nose part of the patient, so that the gas exhaled by the patient can be exhausted and filtered out in time.
In addition, for better fixing the air extraction and purification device, the back of the containing box 31 of the air extraction and purification device is fixedly provided with a waistband 5, and the air extraction and purification device is fixed on the chest and abdomen of a patient by being tied on the waist of the patient, so that the damage caused by pulling the air extraction pipe 1 due to shaking during the transfer of the air extraction and purification device is prevented. And the containing box 31 is also provided with a sound-light alarm 6 for voltage and load abnormity, the sound-light alarm 6 is in signal connection with the exhaust fan 34 through a control circuit, and can send out a sound-light alarm signal when the exhaust fan 34 is stopped accidentally or the exhaust pipe 1 is blocked, so that a worker is reminded to take corresponding measures in time.
Be equipped with wireless communication orientation module on the automatically controlled board, one of them side position elasticity transparent gas storage bag 26 inboard is equipped with miniature earphone microphone 7, miniature earphone microphone 7 accessible wireless communication orientation module adopts two-way interconnection of wiFi and outside intelligent command system to outside intelligent command system can in time know the position of wearing person and equipment operating conditions such as exhaust fan 34 or the affairs of giving up an appointment, also can artifical warning the user of wearing to the headgear, the person of wearing has emergency simultaneously and also can reports to outside intelligent command system.
The rear part or the side surface of the housing 21 is provided with a circular through hole 8 penetrating through the interior of the head cover, the periphery of the outer opening surface of the circular through hole 8 is provided with an outer ring 9 made of hard material, and a layer of radially-cut elastic film is arranged in the circular through hole, so that an external standby air suction pipe can conveniently enter the head cover and obvious air leakage can be avoided.
In the practical use process of the negative pressure hood of the embodiment, when a patient exhales during transportation, if the air exhaust amount is just slightly rebounded (the invagination is reduced) by using (basically balanced) an elastic film or a flexible film, the internal negative pressure can still be maintained (otherwise, in the existing hard hood, if the air exhaust flow exceeds the air exhaust flow instantaneously, the internal negative pressure fails to infect surrounding people); the patient inhales the time inside negative pressure keeps easily, but still outwards takes out gas simultaneously, and the negative pressure increases, and the elastic film invagination increases and can reduce the hood volume and alleviate the patient that the negative pressure sharply increases and arouse and inhale the difficulty to negative pressure preparation is done well for exhaling the time. As long as the elastic film is not excessively flat and still remains sunken, the negative pressure in the hood can be ensured, harmful substances in the hood can be prevented from entering the surrounding environment, the large-amplitude fluctuation of the air pressure in the hood can be automatically relieved by the elastic force, the very obvious indication of whether the air pressure is suitable or not is given, and even the far medical personnel can see the air pressure. The air entering the negative pressure hood mainly comes from a small gap between the neck and the hood and a small amount of oxygen input from the oxygen inlet pipe 25. The part of the shoulder and chest lower hem 23 without pathogenic microorganism releasing ability below the neck of the patient can be covered by common cleaning cloth or isolation clothes. The shoulder-chest skirt 23 continuing with the hood further reduces the possibility of negative pressure loss and improves safety. The oxygen that oxygen intake pipe 25 carried in to the hood blows to the transparent gasbag 24 of facial elasticity, can avoid the haze to influence the patient and observe. The device can prolong the battery endurance time to a great extent under the condition of using the same electric quantity as the previous similar device, and can very simply and reliably indicate whether the air pressure in the hood is suitable or not, so that the safety and the comfort level are improved.
In the two embodiments, the front part and two sides of the negative pressure hood are designed into a face elastic transparent air bag 24 and two side elastic transparent air storage bags 26 by using an elastic film or a flexible film and an elastic belt, and the inside of the hood is used as a negative pressure air storage chamber which is supported only by internal air pressure and used for adjusting the air flow. When the patient is transferred, the exhaust fan 34 is started to exhaust air to enable the hood to form negative pressure, when the patient inhales, the elastic film or the flexible film can increase invagination to increase the negative pressure in the hood, when the patient exhales, the elastic film or the flexible film reduces the invagination, the negative pressure environment still exists in the hood, and the negative pressure reserve in the hood is reduced (but the negative pressure reserve is still slightly invaginated). As long as elastic film or flexible film keep the invagination of certain degree, just can guarantee the inside negative pressure of hood, elastic film's the degree of invagination also is the reliable instruction of inside atmospheric pressure simultaneously, if the negative pressure is too little (invagination is not obvious), the inspection neck gap and discharge gap are too big back, and the user can improve the air extraction volume of exhaust fan through adjust knob. If the elastic film or the flexible film of the face elastic transparent air bag 24 and the two side elastic transparent air storage bags 26 is too large to be sunken in, even the elastic film or the flexible film of the face elastic transparent air bag 24 touches the nose, or the elastic film or the flexible film of the side elastic transparent air storage bags 26 is too large to be sunken in and touches two ears, which indicates that the air is exhausted too much, the air exhaust amount of the exhaust fan 34 can be properly adjusted to be low, the air in the hood is kept to be exhausted outside and filtered into clean air, the wearing comfort is improved, and the service life of the battery is prolonged. The negative pressure hood can prevent the spread of diseases transmitted through the air, protect healthy people working in the surrounding environment, and can draw out the air from the semi-closed hood, filter the air and discharge the air to the surrounding environment, so that the negative pressure hood can completely avoid the infection of pathogens in the air exhaled by a patient to the surrounding healthy people when a user breathes smoothly. Meanwhile, after the patient wears the head cover, the hands are sanitary, and the patient can not contact the mouth and nose parts with pathogens after changing cleaning clothes, so that the way of contacting infection is cut off. Through the improvements, the purposes of novel design, reasonable structure and good application effect are achieved.
While the foregoing is directed to a preferred embodiment of the present invention of a negative pressure hood for transporting patients with respiratory infections, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A negative pressure hood for transporting respiratory infectious disease patients is characterized by comprising a hood body, an exhaust pipe and an exhaust purification device, wherein the upper end of the exhaust pipe is arranged in the hood body, and the lower end of the exhaust pipe is connected with the exhaust purification device;
the head cover body comprises a cover shell, a neck limiting sealing band, a shoulder and chest hem, a face elastic transparent air bag and two side elastic transparent air storage bags; the periphery of the bottom edge of the housing is connected with a shoulder-chest hem and a fixing belt thereof, and a neck limiting sealing belt is arranged at the joint of the shoulder-chest hem and the housing; the front part of the housing is provided with a face elastic transparent air bag;
the air extraction and purification device comprises a battery pack, a filter and an exhaust fan which are arranged in a containing box, and the top of the containing box is also provided with an air volume adjusting knob which is electrically connected with the exhaust fan through an electric control board and can control the rotating speed of the exhaust fan; the filter is arranged at the air inlet of the exhaust fan, and the air outlet of the exhaust fan faces outwards; the battery pack is electrically connected with the exhaust fan through a control circuit on the electric control board;
the cover body supports the head periphery of a transported patient, the transparent air bag with the elasticity of the face and the transparent air bag with the two side positions are made of elastic films, the transparent air bag with the elasticity of the face is located in the front of the eyes of the transported patient, the transparent air bags with the elasticity of the two side positions are respectively located on the outer sides of the two ears of the transported patient, and the negative pressure hood can be worn by the patient when the exhaust fan is started to exhaust and filter the internal gas of the exhaust fan, so that the negative pressure hood keeps negative pressure, and the degree of invagination of the elastic films of the transparent air bag with the elasticity of the face and the two side positions shows the negative pressure condition in the negative pressure.
2. The negative pressure hood for transporting respiratory infectious disease patients of claim 1, wherein the hood comprises an inner skin layer and an outer skin layer which are formed with air bags in the middle after inflation, the inner skin layer and the outer skin layer are both made of soft materials, an inflation nozzle and an inflation plug are arranged on the outer skin layer, and an oxygen inlet pipe is arranged above the face elastic transparent air bag.
3. The hood of claim 1, wherein the cover is made of a hard transparent material and has an oxygen inlet tube above the elastic transparent air bag.
4. The hood of claim 2 or 3, wherein two shoulder straps and a chest strap are further connected to the shoulder-chest skirt downward from the shoulders of the patient, and lower ends of the shoulder straps extend to both sides of the waist of the patient.
5. The negative pressure hood for transporting respiratory infectious disease patient according to claim 4, wherein the upper end of the air suction pipe is connected to the cover shell below the face elastic transparent air bag, and the air suction port is close to the outside of the mouth and nose part of the patient.
6. The negative pressure hood for transporting respiratory infectious disease patient of claim 5, wherein the suction purification device is fastened to the chest and abdomen by being tied to the waist of the patient by a belt fastened to the back of the containing box of the suction purification device.
7. The negative pressure hood for transporting respiratory infectious disease patients of claim 6, wherein the containing box is further provided with a sound-light alarm for abnormal voltage and load, the sound-light alarm is in signal connection with the exhaust fan through a control circuit and can send out a sound-light alarm signal when the exhaust fan is stopped accidentally or the exhaust pipe is blocked.
8. The negative pressure head cover for transporting respiratory infectious disease patient according to claim 7, wherein the face elastic transparent air bag and the two side elastic transparent air storage bags are all or partially of flexible film structure, and at least one elastic belt is fixed on the surface of the flexible film.
9. The negative pressure hood for transporting respiratory infectious disease patients of claim 8, wherein the electric control board is provided with a wireless communication positioning module, and a micro-earphone microphone is arranged inside one of the side elastic transparent air storage bags, and the micro-earphone microphone can be interconnected with an external intelligent command system in two directions through the wireless communication positioning module by using WiFi.
10. The negative pressure hood for transporting respiratory infectious disease patients of claim 9, wherein the rear or side of the housing is provided with a circular through hole penetrating the interior of the hood, the outer periphery of the outer opening of the circular through hole is provided with an outer ring of hard material, and a radially cut elastic membrane is provided in the circular through hole to facilitate the intake of the breathing tube into the hood and prevent significant air leakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010202681.5A CN111265753A (en) | 2020-03-20 | 2020-03-20 | Negative pressure hood for transporting respiratory infectious disease patient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010202681.5A CN111265753A (en) | 2020-03-20 | 2020-03-20 | Negative pressure hood for transporting respiratory infectious disease patient |
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| Publication Number | Publication Date |
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| CN111265753A true CN111265753A (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010202681.5A Pending CN111265753A (en) | 2020-03-20 | 2020-03-20 | Negative pressure hood for transporting respiratory infectious disease patient |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112022518A (en) * | 2020-08-21 | 2020-12-04 | 中国人民解放军中部战区疾病预防控制中心 | Epidemic disease scene patient transfer device |
| CN112056649A (en) * | 2020-07-10 | 2020-12-11 | 美埃(中国)环境科技股份有限公司 | Respiratory infectious disease isolation device |
| CN112057279A (en) * | 2020-09-17 | 2020-12-11 | 山东大学齐鲁医院 | Noninvasive ventilator hood |
| CN115487435A (en) * | 2022-10-08 | 2022-12-20 | 上海市东方医院（同济大学附属东方医院） | Negative pressure air inlet breathing mask and using method thereof |
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2020
- 2020-03-20 CN CN202010202681.5A patent/CN111265753A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112056649A (en) * | 2020-07-10 | 2020-12-11 | 美埃(中国)环境科技股份有限公司 | Respiratory infectious disease isolation device |
| CN112022518A (en) * | 2020-08-21 | 2020-12-04 | 中国人民解放军中部战区疾病预防控制中心 | Epidemic disease scene patient transfer device |
| CN112057279A (en) * | 2020-09-17 | 2020-12-11 | 山东大学齐鲁医院 | Noninvasive ventilator hood |
| CN115487435A (en) * | 2022-10-08 | 2022-12-20 | 上海市东方医院（同济大学附属东方医院） | Negative pressure air inlet breathing mask and using method thereof |
| CN115487435B (en) * | 2022-10-08 | 2023-11-17 | 上海市东方医院（同济大学附属东方医院） | Negative pressure air inlet breathing mask and use method thereof |
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