CN112438848A - Medical hyperbaric oxygen chamber protective clothing - Google Patents
Medical hyperbaric oxygen chamber protective clothing Download PDFInfo
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- CN112438848A CN112438848A CN202011234697.0A CN202011234697A CN112438848A CN 112438848 A CN112438848 A CN 112438848A CN 202011234697 A CN202011234697 A CN 202011234697A CN 112438848 A CN112438848 A CN 112438848A
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- protective clothing
- protective
- cavity
- air pressure
- clothing body
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- 230000001681 protective effect Effects 0.000 title claims abstract description 66
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 239000001301 oxygen Substances 0.000 title claims abstract description 18
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 18
- 210000005069 ears Anatomy 0.000 claims abstract description 5
- 229920001971 elastomer Polymers 0.000 claims description 16
- 101001010782 Drosophila melanogaster Fez family zinc finger protein erm Proteins 0.000 claims description 9
- 230000005236 sound signal Effects 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 210000000038 chest Anatomy 0.000 abstract description 8
- 230000008451 emotion Effects 0.000 abstract description 4
- 239000003381 stabilizer Substances 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 206010013954 Dysphoria Diseases 0.000 abstract description 2
- 210000000115 thoracic cavity Anatomy 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 230000036651 mood Effects 0.000 description 4
- 206010070511 Hypoxic-ischaemic encephalopathy Diseases 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 210000000959 ear middle Anatomy 0.000 description 2
- 206010067484 Adverse reaction Diseases 0.000 description 1
- 206010001526 Air embolism Diseases 0.000 description 1
- 206010061688 Barotrauma Diseases 0.000 description 1
- 208000002381 Brain Hypoxia Diseases 0.000 description 1
- 201000006474 Brain Ischemia Diseases 0.000 description 1
- 206010008479 Chest Pain Diseases 0.000 description 1
- 230000006838 adverse reaction Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002490 cerebral effect Effects 0.000 description 1
- 208000026106 cerebrovascular disease Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000000302 ischemic effect Effects 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G10/00—Treatment rooms or enclosures for medical purposes
- A61G10/02—Treatment rooms or enclosures for medical purposes with artificial climate; with means to maintain a desired pressure, e.g. for germ-free rooms
- A61G10/023—Rooms for the treatment of patients at over- or under-pressure or at a variable pressure
- A61G10/026—Rooms for the treatment of patients at over- or under-pressure or at a variable pressure for hyperbaric oxygen therapy
-
- 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
-
- 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
- A41D13/0518—Chest
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
- A61F11/06—Protective devices for the ears
-
- 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
- A61M21/00—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
- A61M21/02—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis for inducing sleep or relaxation, e.g. by direct nerve stimulation, hypnosis, analgesia
-
- 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
- A61M21/00—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
- A61M2021/0005—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus
- A61M2021/0027—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus by the hearing sense
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Textile Engineering (AREA)
- Physical Education & Sports Medicine (AREA)
- Biomedical Technology (AREA)
- Acoustics & Sound (AREA)
- Anesthesiology (AREA)
- Psychology (AREA)
- Physics & Mathematics (AREA)
- Emergency Medicine (AREA)
- Pain & Pain Management (AREA)
- Pulmonology (AREA)
- Hematology (AREA)
- Biophysics (AREA)
- Otolaryngology (AREA)
- Vascular Medicine (AREA)
- Environmental & Geological Engineering (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
Abstract
A kind of medical hyperbaric oxygen chamber protective clothing, including the protective clothing body, regulate the pressure stabilizer between human body and the protective clothing body, protective device to the ear of human body, the protective device connects to the body collarband both sides of the protective clothing, the protective clothing body has cavity pocket to protect human thorax position with the contact site of the human thorax, the cavity pocket communicates with protective clothing body, and the inside has pressure stabilizer; the cavity is formed by connecting the shell and the protective suit body, so that the internal air pressure is adjusted, so that after people wear the protective suit, the air pressure is not different from the external air pressure, and discomfort caused by compression of the air pressure on the thoracic cavity part is reduced; the damage to the ears is reduced through the earmuffs, the light music can be listened to inside, the emotion of people can be relieved, and the dysphoria emotion caused by the environment is relieved.
Description
Technical Field
The invention relates to a protective garment of a medical hyperbaric oxygen chamber.
Background
The hyperbaric oxygen chamber is used as treatment equipment which has great significance to patients in real life, has wide application range and is mainly used for treating anaerobic infection, CO poisoning, air embolism disease, decompression disease, ischemic and anoxic encephalopathy, cerebral trauma, cerebrovascular disease and the like; however, in the treatment process, some patients need to be accompanied by family members, and the internal pressurization and decompression of oxygen have certain side effects, such as chest distress, middle ear barotrauma and the like, which can affect the state of accompanying personnel and can not better care for the patients.
Disclosure of Invention
In view of the above, the present invention provides a protective garment for a medical hyperbaric oxygen chamber, so as to solve at least one problem in the prior art.
According to one aspect of the invention, the medical hyperbaric oxygen chamber protective clothing comprises a protective clothing body, a pressure stabilizing device for adjusting air pressure between the protective clothing body and a human body and a protective device for protecting ears of the human body, wherein the protective device is connected to two sides of a neckline of the protective clothing body; the cavity is formed by connecting the shell and the protective clothing body; the pressure stabilizing device comprises an air pressure sensor, an air pump and a microcontroller, wherein the air pump can be used for inflating and deflating to adjust the air pressure in the cavity; protection device is including reducing the ear muff of high pressure to the ear influence, storing the accumulator of light music, the microphone of receiving outside doctor sound signal, the first switch of control music broadcast, the inside speaker that is equipped with of ear muff, and symmetric distribution are inside protective clothing body collarband both sides, and accumulator, microphone setting are inside the cavity, and first switch setting is outside the cavity, and microphone, speaker all with microcontroller electric connection.
Preferably, the first rubber band, the second rubber band and the third rubber band are respectively arranged at the sleeve opening, the collar opening and the lower end opening of the protective clothing body and are all positioned in the protective clothing body.
Preferably, the protective clothing body is made of soft and air-tight fabric.
Preferably, the housing is made of a flexible material, and the pressure inside the housing is the same as the atmospheric pressure.
Preferably, a rechargeable battery is further arranged in the cavity, and a USB interface for charging the rechargeable battery and a second switch for controlling the voltage regulator are arranged on the housing.
The beneficial effects of the invention are that: by adjusting the internal air pressure, the pressure of the protective clothing is not different from the external air pressure after people wear the protective clothing, so that the discomfort caused by the compression of the air pressure on the thoracic cavity part is reduced; the damage to the ears is reduced through the earmuffs, the light music can be listened to inside, the emotion of people can be relieved, and the dysphoria emotion caused by the environment is relieved.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic diagram of the circuit of the present invention.
In the figure, 1, a protective clothing body, 2, a shell, 3, a storage, 4, an air pump, 5, a microcontroller, 6, an earmuff, 7, an air pressure sensor, 8, a first switch, 9, a microphone, 10, a second switch, 11, a rechargeable battery, 12, a USB interface, 13, a first rubber band, 14, a third rubber band, 15, a second rubber band, 16 and a loudspeaker.
Detailed Description
In fig. 1-2, a medical hyperbaric oxygen chamber protective suit comprises a protective suit body 1, a pressure stabilizer for adjusting air pressure between the protective suit body 1 and a human body, and a protective device for protecting ears of the human body, wherein the protective device is connected to two sides of a neckline of the protective suit body 1, a cavity for protecting the chest part of the human body is arranged at the contact part of the protective suit body 1 and the chest part of the human body, the cavity is communicated with the protective suit body 1, and the pressure stabilizer is arranged inside the cavity; the cavity is formed by connecting the shell 2 and the protective suit body 1; the pressure stabilizing device comprises an air pressure sensor 7, an air pump 4 capable of inflating and deflating to adjust the air pressure in the cavity and a microcontroller 5, wherein the air pressure sensor 7 and the air pump 4 are electrically connected with the microcontroller 7; protection device is including reducing the ear muff 6 of high pressure to the ear influence, storing the first switch 8 of the microphone 9, the control music broadcast of the accumulator 3 of light music, the receipt outside doctor sound signal, 6 inside speakers 16 that are equipped with of ear muff, and symmetric distribution is in 1 collarband both sides of protective clothing body, and accumulator 3, microphone 9 set up inside the cavity, and first switch 8 sets up outside the cavity, and microphone 9, speaker 16 all with 5 electric connection of microcontroller.
In this embodiment, the effect of cavity is through pressure regulator device regulation atmospheric pressure to play the effect of protecting the thorax position, prevent that thorax department atmospheric pressure is too high, oppress the thorax position.
In this embodiment, a first rubber band 13, a second rubber band 15 and a third rubber band 14 are respectively arranged at the sleeve opening, the collar opening and the lower end opening of the protective clothing body 1 and are all positioned in the protective clothing body 1; the first rubber band 13, the second rubber band 15 and the third rubber band 14 are used for reducing gas in the hyperbaric oxygen chamber to enter a space between the protective suit body 1 and a human body as much as possible and directly oppressing the position of the chest of the human body.
In the embodiment, the protective clothing body 1 is made of soft and air-tight fabric; the air-tight fabric is adopted, and the phenomenon that high-pressure air enters a space between clothes and a human body, so that the essential parts of the human body are pressed and uncomfortable is mainly reduced.
In this embodiment, the airtight fabric is a latex fabric or a compression gel coat fabric, and the protective clothing is worn in the same manner as the short-sleeved shirt in real life.
In the present embodiment, the housing 2 is made of a flexible material, and the internal pressure of the housing 2 is the same as the atmospheric pressure; adopt flexible material can increase the comfort of protective clothing dress on human body, the inside atmospheric pressure of shell 2 keeps the same with outside atmospheric pressure, can guarantee that family members get into the hyperbaric oxygen cabin under the condition of wearing this protective clothing, can with in normal environment usually the same, avoid appearing the adverse reaction.
In this embodiment, the flexible material is a rubber material or a plastic material with a certain supporting force.
In this embodiment, a rechargeable battery 11 is further disposed inside the cavity, and a USB interface 12 for charging the rechargeable battery 11 and a second switch 10 for controlling the voltage regulator are disposed on the housing 2; the rechargeable battery 11 is connected with the USB interface 12 through an external power supply to charge the rechargeable battery.
In this embodiment, the microcontroller 5 is a programmable single chip microcomputer of AT89C2051 or TMS320VC5509A, and the like.
In this embodiment, the air pressure sensor 7 monitors the air pressure in real time, transmits the sensing signal to the microcontroller 5, the microcontroller 5 receives the sensing signal and converts the sensing signal into an electrical signal, and the air pump 4 receives the electrical signal and adjusts the air pressure in the space between the protective clothing body 1 and the human body; when the air pressure of the space between the protective suit body 1 and the human body is larger than the external air pressure, the air pump 4 can exhaust air outwards until the air pressure is stabilized to be the same as the atmospheric pressure; when the air pressure in the space between the protective clothing body 1 and the human body is smaller than the external air pressure, the air pump 4 can draw air inwards until the air pressure is stabilized to be the same as the atmospheric pressure.
In this embodiment, the effect of ear muff 6 is that prevent the middle ear of the damage of atmospheric pressure to can listen to the music, alleviate people's mood under the enclosed environment, the opening of music is controlled to first switch 8, presses the switch, and microcontroller 5 receives the signal of telecommunication to read the inside information of accumulator 3, with signal of telecommunication transmission to speaker 16, speaker 16 converts the signal of telecommunication into sound signal, plays some light music and alleviates the mood.
In this embodiment, the microphone 9 is used for collecting external sound information, so that external sound can be heard under the condition of wearing the ear muffs 6, and the patient or doctor can communicate with the external sound information in time; the microphone 9 collects external sound signals and transmits the sound signals to the micro controller 5, the micro controller 5 receives the sound signals, converts the sound signals into electric signals and transmits the electric signals to the loudspeaker 16, and the loudspeaker 16 converts the electric signals into sound signals to play.
In the embodiment, in specific implementation: when getting into the hyperbaric oxygen cabin, dressing this protective clothing, medical personnel open second switch 10, take earmuff 6, get into inside the hyperbaric oxygen cabin, the atmospheric pressure in space between protective clothing body 1 and the human body is adjusted by the voltage regulator, maintains the state the same with atmospheric pressure all the time, when human mood is unstable, opens first switch 8 by oneself, can listen to the music, the mood of releiving.
It is worth mentioning that: in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; mechanical connection is possible, and a person of ordinary skill in the art can understand the specific meaning of the above terms in the present invention according to specific situations.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. The utility model provides a hyperbaric oxygen chamber protective clothing for medical treatment which characterized in that: the protective clothing comprises a protective clothing body, a pressure stabilizing device for adjusting air pressure between the protective clothing body and a human body and a protective device for protecting ears of the human body, wherein the protective device is connected to two sides of a neckline of the protective clothing body; the cavity is formed by connecting the shell and the protective clothing body; the pressure stabilizing device comprises an air pressure sensor, an air pump and a microcontroller, wherein the air pump can be used for inflating and deflating to adjust the air pressure in the cavity; protection device is including reducing the ear muff of high pressure to the ear influence, storing the accumulator of light music, the microphone of receiving outside doctor sound signal, the first switch of control music broadcast, the inside speaker that is equipped with of ear muff, and symmetric distribution are inside protective clothing body collarband both sides, and accumulator, microphone setting are inside the cavity, and first switch setting is outside the cavity, and microphone, speaker all with microcontroller electric connection.
2. The protective clothing for a medical hyperbaric oxygen chamber of claim 1, wherein: the protective clothing body sleeve opening, the collar opening and the lower end opening are respectively provided with a first rubber band, a second rubber band and a third rubber band which are all positioned in the protective clothing body.
3. The protective clothing for a medical hyperbaric oxygen chamber of claim 1, wherein: the protective clothing body is made of soft and air-tight fabric.
4. The protective clothing for a medical hyperbaric oxygen chamber of claim 1, wherein: the shell is made of flexible materials, and the air pressure inside the shell is the same as the atmospheric pressure.
5. The protective clothing for a medical hyperbaric oxygen chamber of claim 1, wherein: the cavity is internally provided with a rechargeable battery, and the shell is provided with a USB interface for charging the rechargeable battery and a second switch for controlling the voltage stabilizing device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019221076297 | 2019-11-29 | ||
| CN201922107629 | 2019-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112438848A true CN112438848A (en) | 2021-03-05 |
Family
ID=74735876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011234697.0A Pending CN112438848A (en) | 2019-11-29 | 2020-11-07 | Medical hyperbaric oxygen chamber protective clothing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112438848A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3769972A (en) * | 1972-04-14 | 1973-11-06 | Calhene | Protective clothing for an operator working in a hermetic enclosure |
| US5309901A (en) * | 1990-11-27 | 1994-05-10 | Intertechnique | Individual protective equipment including a pressure suit and a self-contained breathing apparatus |
| CN1451450A (en) * | 2003-05-15 | 2003-10-29 | 苏祥忠 | Multifunctional protection garment |
| EP1894604A2 (en) * | 2006-08-28 | 2008-03-05 | AMAREG GmbH | Protective clothing |
| CN102166045A (en) * | 2011-03-15 | 2011-08-31 | 中国人民解放军军事医学科学院卫生装备研究所 | Whole-body type positive-pressure biological protective clothing with monitoring system |
| CN202173694U (en) * | 2011-08-09 | 2012-03-28 | 湖北华强科技有限责任公司 | Positive-pressure protective clothes |
| US20130296768A1 (en) * | 2012-05-04 | 2013-11-07 | Microlin, Llc. | Hydrogen suit for skin exposure |
| CN204861273U (en) * | 2015-07-28 | 2015-12-16 | 石狮市荣威警备器材有限公司 | Integration formula protective clothing |
| CN106820310A (en) * | 2016-12-28 | 2017-06-13 | 深圳沃海森科技有限公司 | Four permanent air-ventilating garments of extraneous high pressure can be alleviated |
| CN207605064U (en) * | 2017-05-22 | 2018-07-13 | 尚祎辰 | Air pressure self-balancing ear muffler |
| CN110141813A (en) * | 2019-05-31 | 2019-08-20 | 深圳市中天潜水装备有限公司 | A kind of confined space life-support system |
-
2020
- 2020-11-07 CN CN202011234697.0A patent/CN112438848A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3769972A (en) * | 1972-04-14 | 1973-11-06 | Calhene | Protective clothing for an operator working in a hermetic enclosure |
| US5309901A (en) * | 1990-11-27 | 1994-05-10 | Intertechnique | Individual protective equipment including a pressure suit and a self-contained breathing apparatus |
| CN1451450A (en) * | 2003-05-15 | 2003-10-29 | 苏祥忠 | Multifunctional protection garment |
| EP1894604A2 (en) * | 2006-08-28 | 2008-03-05 | AMAREG GmbH | Protective clothing |
| CN102166045A (en) * | 2011-03-15 | 2011-08-31 | 中国人民解放军军事医学科学院卫生装备研究所 | Whole-body type positive-pressure biological protective clothing with monitoring system |
| CN202173694U (en) * | 2011-08-09 | 2012-03-28 | 湖北华强科技有限责任公司 | Positive-pressure protective clothes |
| US20130296768A1 (en) * | 2012-05-04 | 2013-11-07 | Microlin, Llc. | Hydrogen suit for skin exposure |
| CN204861273U (en) * | 2015-07-28 | 2015-12-16 | 石狮市荣威警备器材有限公司 | Integration formula protective clothing |
| CN106820310A (en) * | 2016-12-28 | 2017-06-13 | 深圳沃海森科技有限公司 | Four permanent air-ventilating garments of extraneous high pressure can be alleviated |
| CN207605064U (en) * | 2017-05-22 | 2018-07-13 | 尚祎辰 | Air pressure self-balancing ear muffler |
| CN110141813A (en) * | 2019-05-31 | 2019-08-20 | 深圳市中天潜水装备有限公司 | A kind of confined space life-support system |
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