CN112369737A - Positive-pressure ventilation medical protective clothing and working method thereof - Google Patents
Positive-pressure ventilation medical protective clothing and working method thereof Download PDFInfo
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- CN112369737A CN112369737A CN202011083243.8A CN202011083243A CN112369737A CN 112369737 A CN112369737 A CN 112369737A CN 202011083243 A CN202011083243 A CN 202011083243A CN 112369737 A CN112369737 A CN 112369737A
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- protective clothing
- gas
- booster pump
- protective
- air
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/12—Surgeons' or patients' gowns or dresses
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/002—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches with controlled internal environment
- A41D13/0025—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches with controlled internal environment by means of forced air circulation
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D27/00—Details of garments or of their making
- A41D27/28—Means for ventilation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2200/00—Components of garments
- A41D2200/20—Hoods
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2600/00—Uses of garments specially adapted for specific purposes
- A41D2600/20—Uses of garments specially adapted for specific purposes for working activities
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
Abstract
The invention discloses a positive pressure ventilation medical protective clothing and a working method thereof, and the positive pressure ventilation medical protective clothing comprises a protective clothing body and a transparent cover arranged on the protective clothing body and positioned on the face, wherein a humidity sensor is arranged inside the protective clothing body, an air outlet is formed in the protective clothing body and positioned at the trouser leg, a one-way valve is arranged in a passage of the air outlet, an exhalation device is arranged at the mouth of the transparent cover and comprises an air inlet, a booster pump and a controller, the output end of the booster pump is communicated with an air inlet of the protective clothing, the controller is electrically connected with the booster pump and the humidity sensor, and the controller is also connected with a power supply. The invention utilizes the gas booster pump to feed filtered nontoxic gas into the protective clothing, so that positive pressure is formed in the protective clothing, external polluted gas is prevented from entering the protective clothing, and the safety of medical staff is ensured; the pressurized gas can reduce the resistance to inhalation, reduce the work done by breathing, and the air flow can take away the exhausted carbon dioxide, reduce the dead space of breathing, and simultaneously take away the sweat, and relieve fatigue.
Description
Technical Field
The invention relates to the technical field of protective clothing, in particular to positive pressure ventilation medical protective clothing and a working method thereof.
Background
Because the protective clothing is used in a special working environment before epidemic prevention, the protective clothing is disposable, has high cost and is useless after being taken off, and the resources of the protective clothing are limited, medical workers often wear the protective clothing for tens of hours. In order to effectively block viruses, the medical protective clothing must have good tightness, and thus, the medical protective clothing blocks the exchange with other gases, so that dry air outside the protective clothing cannot enter, and water discharged from the respiratory system and the skin surface of a user cannot be discharged. In addition, under the normal pressure state, the tightness of the medical protective clothing has the following defects:
1. the respiratory dead space is large. During expiration, a part of exhaled gas stops on the face of a user, and during inspiration, the part of gas is inhaled again to form a breathing dead space, so that people wear the mask for a long time and feel insufficient oxygen, and feel smooth breathing immediately after taking off the mask.
2. Due to the high temperature and moisture of the air exhaled from the lungs, when encountering the low temperature goggles or protective suit windows, water or mist can condense and affect the view of the doctor, thereby impeding medical operations.
3. After medical staff wear protective clothing and protective mask, have the resistance of breathing in and increase, the carbon dioxide gas of exhaling can not all be got rid of to the outside, can be breathed in again when breathing in next time problem. Therefore, the medical staff feels abnormal sultriness and sweat down when wearing the airtight protective clothing for a long time, and the back of the body is soaked through after the work of one day, which is equivalent to sauna bath in one day, and in a special working environment, the psychological stress is large, the fatigue is easy to occur, and the fighting capacity is reduced.
4. Because the protective clothing is closed, medical personnel need to increase the inspiratory strength to meet the requirement of oxygen, so that the breathing work is increased, and negative pressure is formed in the protective clothing, thereby increasing the risk of infection and invisibly increasing the psychological pressure of the medical personnel.
Therefore, a new medical protective garment is needed to solve the above problems.
Disclosure of Invention
In view of the above-mentioned defects in the prior art, the present invention provides a positive pressure ventilation medical protective garment and a working method thereof, so as to solve the defects in the prior art.
In order to achieve the purpose, the invention provides positive pressure ventilation medical protective clothing which comprises a protective clothing body and a transparent cover arranged on the protective clothing body and positioned on the face, wherein a humidity sensor is arranged inside the protective clothing body, an air outlet is formed in the protective clothing body and positioned at the trouser leg, a one-way valve is arranged in a passage of the air outlet, an exhalation device is arranged at the mouth of the transparent cover and comprises an air inlet, a booster pump and a controller, the output end of the booster pump is communicated with an air inlet of the protective clothing, the controller is electrically connected with the booster pump and the humidity sensor, and the controller is further connected with a power supply.
Preferably, the controller is a single chip microcomputer.
Preferably, the booster pump is a micro gas booster pump.
Preferably, the protective body suit gas inlet is located in front of the eyes opposite the transparent cover.
Preferably, the pipeline at the front end of the gas input port of the protective clothing is made of food-grade silica gel.
A working method of a positive pressure ventilation medical protective suit comprises the following steps:
the micro gas booster pump works to suck external gas into the protective clothing, so that the internal gas of the protective clothing flows, a positive pressure state is maintained, and an N95 filter plate is additionally arranged at the air inlet to prevent viruses from entering the protective clothing;
sending outside air with proper temperature into the protective clothing by using a food-grade silicone tube, and directly blowing the outside air to a transparent area in front of eyes; the external air flows through the whole body to keep the skin dry and comfortable, the humidity sensor detects the humidity condition in the protective clothing, and if the humidity exceeds a preset value, the controller controls the micro air booster pump to increase the air inflow so as to accelerate the air flow in the protective clothing;
the gas is finally exhausted through the lower exhaust port, and the exhaust port is provided with a one-way valve to prevent outdoor polluted air from entering the protective clothing.
The invention has the beneficial effects that:
firstly, filtered nontoxic gas is fed into the protective clothing by using a gas booster pump, so that positive pressure is formed in the protective clothing, external polluted gas is prevented from entering the protective clothing, and the safety of medical personnel is ensured;
secondly, air entering the protective clothing directly faces the face screen and is positioned in front of eyes, so that the situation that the eyes are not clear due to atomization is avoided, and the wearing comfort level of medical workers is greatly improved;
and thirdly, the pressurized gas can reduce the resistance to inspiration and reduce the work done by breathing, and the discharged carbon dioxide can be taken away by the airflow, so that the dead space of breathing is reduced, sweat is taken away, and fatigue is relieved.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
Figure 1 is a schematic view of the structure of the protective garment of the present invention.
Fig. 2 is a schematic block diagram of the system of the present invention.
Detailed Description
As shown in figure 1, the medical protective clothing of positive pressure ventilation, including protective clothing body 1 and setting are located facial transparent cover 2 at protective clothing body 1, its characterized in that: the protective suit comprises a protective suit body 1 and is characterized in that a humidity sensor 4 is arranged inside the protective suit body 1, an air outlet 5 is formed in the position, located at trouser legs, of the protective suit body 1, a one-way valve is arranged in a passage of the air outlet 5, a transparent cover 2 is located at a mouth and provided with an exhalation device 3, the exhalation device 3 comprises an air inlet, a booster pump and a controller, the output end of the booster pump is communicated with a gas inlet of the protective suit, the controller is electrically connected with the booster pump and the humidity sensor.
In this embodiment, the controller is the singlechip for receive the humidity condition in the protective clothing that humidity transducer detected, and according to the work of humidity condition control booster pump, in order to keep the interior ventilation drying of protective clothing.
In this embodiment, the booster pump is a micro gas booster pump. The air outside the room is pressurized by the micro air booster pump and then is input into the protective clothing, and the air pump is utilized to make the air inside the protective clothing flow and maintain the positive pressure state.
In this embodiment, the gas entry port of the suit is located in front of the eye opposite the transparent cover 2. The food-grade silicone tube is used for sending cold air with proper temperature into the protective clothing, and the cold air is directly blown to a transparent area in front of eyes, so that the phenomenon that moist air exhaled from the lung forms fog on transparent plastic to influence the visual field is avoided.
The invention also provides a working method of the positive pressure ventilation medical protective clothing, which comprises the following steps:
the micro gas booster pump works to suck external gas into the protective clothing, so that the internal gas of the protective clothing flows, a positive pressure state is maintained, and an N95 filter plate is additionally arranged at the air inlet to prevent viruses from entering the protective clothing;
sending outside air with proper temperature into the protective clothing by using a food-grade silicone tube, and directly blowing the outside air to a transparent area in front of eyes; the external air flows through the whole body to keep the skin dry and comfortable, the humidity sensor detects the humidity condition in the protective clothing, and if the humidity exceeds a preset value, the controller controls the micro air booster pump to increase the air inflow so as to accelerate the air flow in the protective clothing;
the gas is finally exhausted through the lower exhaust port, and the exhaust port is provided with a one-way valve to prevent outdoor polluted air from entering the protective clothing.
The minute ventilation is tidal volume x respiratory rate, and the average data is given by: the average value of the tidal volume is 500ml, the average value of the respiratory rate is 18 times/min, the ventilation volume per minute is 9000ml/min, the air density is 1.293g/L, and therefore the inhaled air mass per minute is about 11.64 g.
In conclusion, the invention has the following beneficial effects:
firstly, filtered nontoxic gas is fed into the protective clothing by using a gas booster pump, so that positive pressure is formed in the protective clothing, external polluted gas is prevented from entering the protective clothing, and the safety of medical personnel is ensured;
secondly, air entering the protective clothing directly faces the face screen and is positioned in front of eyes, so that the situation that the eyes are not clear due to atomization is avoided, and the wearing comfort level of medical workers is greatly improved;
and thirdly, the pressurized gas can reduce the resistance to inspiration and reduce the work done by breathing, and the discharged carbon dioxide can be taken away by the airflow, so that the dead space of breathing is reduced, sweat is taken away, and fatigue is relieved.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (6)
1. The utility model provides a medical protective clothing of malleation ventilation, includes protective clothing body (1) and sets up transparent cover (2) that are located face at protective clothing body (1), its characterized in that: the protective suit is characterized in that a humidity sensor (4) is arranged inside a protective suit body (1), the protective suit body (1) is located in trouser legs and is provided with a gas outlet (5), a one-way valve is arranged in a passage of the gas outlet (5), a transparent cover (2) is located in a mouth and is provided with an exhalation device (3), the exhalation device (3) comprises a gas inlet, a booster pump and a controller, the output end of the booster pump is communicated with a gas inlet of the protective suit, the controller is electrically connected with the booster pump and the humidity sensor (4), and the controller is also connected with a power supply.
2. The positive airway pressure medical protective garment of claim 1, wherein: the controller is a single chip microcomputer.
3. The positive airway pressure medical protective garment of claim 1, wherein: the booster pump is a micro gas booster pump.
4. The positive airway pressure medical protective garment of claim 1, wherein: the protective suit gas inlet is opposite to the transparent cover (2) and is positioned in front of eyes.
5. The positive airway pressure medical protective garment of claim 1, wherein: the pipeline at the front end of the gas input port of the protective suit is made of food-grade silica gel.
6. A working method of a positive pressure ventilation medical protective suit is characterized by comprising the following steps:
the micro gas booster pump works to suck external gas into the protective clothing, so that the internal gas of the protective clothing flows, a positive pressure state is maintained, and an N95 filter plate is additionally arranged at the air inlet to prevent viruses from entering the protective clothing;
sending outside air with proper temperature into the protective clothing by using a food-grade silicone tube, and directly blowing the outside air to a transparent area in front of eyes; the external air flows through the whole body to keep the skin dry and comfortable, the humidity sensor detects the humidity condition in the protective clothing, and if the humidity exceeds a preset value, the controller controls the micro air booster pump to increase the air input so as to accelerate the air flow in the protective clothing;
the gas is finally exhausted through the lower exhaust port, and the exhaust port is provided with a one-way valve to prevent outdoor polluted air from entering the protective clothing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011083243.8A CN112369737A (en) | 2020-10-12 | 2020-10-12 | Positive-pressure ventilation medical protective clothing and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011083243.8A CN112369737A (en) | 2020-10-12 | 2020-10-12 | Positive-pressure ventilation medical protective clothing and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112369737A true CN112369737A (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011083243.8A Pending CN112369737A (en) | 2020-10-12 | 2020-10-12 | Positive-pressure ventilation medical protective clothing and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112369737A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112999789A (en) * | 2021-03-15 | 2021-06-22 | 恩平市超弦膜技术有限公司 | Molecular membrane gas purification method applied to positive pressure respiratory system of closed protective clothing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4403608A (en) * | 1980-04-23 | 1983-09-13 | Dragerwerk Aktiengesellschaft | Pressure gas ventilated protective suit and method of operating the suit |
| WO2001074449A1 (en) * | 2000-04-03 | 2001-10-11 | Safety Equipment Sweden Ab | Ventilation system for a protective suit |
| CN105054387A (en) * | 2015-09-11 | 2015-11-18 | 中国人民解放军军事医学科学院卫生装备研究所 | Full-covered positive-pressure biological protective suit with built-in air supply system |
| CN111248552A (en) * | 2020-04-10 | 2020-06-09 | 济南秦沃商贸有限公司 | Medical protective clothing internal environment regulating system |
| CN210696088U (en) * | 2020-04-01 | 2020-06-09 | 尹成松 | Full-closed integrated medical protective clothing for inflation and exhaust |
-
2020
- 2020-10-12 CN CN202011083243.8A patent/CN112369737A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4403608A (en) * | 1980-04-23 | 1983-09-13 | Dragerwerk Aktiengesellschaft | Pressure gas ventilated protective suit and method of operating the suit |
| WO2001074449A1 (en) * | 2000-04-03 | 2001-10-11 | Safety Equipment Sweden Ab | Ventilation system for a protective suit |
| CN105054387A (en) * | 2015-09-11 | 2015-11-18 | 中国人民解放军军事医学科学院卫生装备研究所 | Full-covered positive-pressure biological protective suit with built-in air supply system |
| CN210696088U (en) * | 2020-04-01 | 2020-06-09 | 尹成松 | Full-closed integrated medical protective clothing for inflation and exhaust |
| CN111248552A (en) * | 2020-04-10 | 2020-06-09 | 济南秦沃商贸有限公司 | Medical protective clothing internal environment regulating system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112999789A (en) * | 2021-03-15 | 2021-06-22 | 恩平市超弦膜技术有限公司 | Molecular membrane gas purification method applied to positive pressure respiratory system of closed protective clothing |
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