CN1552485A

CN1552485A - Positive ventilated body separating system

Info

Publication number: CN1552485A
Application number: CNA03127059XA
Authority: CN
Inventors: 王沙维; 张连生; 孙晓莉; 时亚明; 王金国; 单纯玉
Original assignee: China-Japan Union Hospital of Jilin University
Current assignee: China-Japan Union Hospital of Jilin University
Priority date: 2003-06-04
Filing date: 2003-06-04
Publication date: 2004-12-08

Abstract

A positive-pressure ventilating whole-body isolation system for preventing the respiratory infection of infectious disease features that a check valve is arranged at upper half of sealed helmet, a flexible air inlet tube is connected between compressed air source and the sealed helmet and sealed clothing of body, said helmet has a transparent window for eyes, and said sealed clothing has exhaust holes. Its advantages are good ventilation and now ay that bacteria come in the isolating clothing.

Description

Positive airway pressure whole body shielding system

Technical field:

The invention belongs to healthy prevention technical field.

Background technology:

At present, the clinical medical and nursing personnel that directly contact with patient SARS, though all be installed with protective garment, and the isolation that can accomplish medical personnel and contaminated environment on the existing protective garment surface is sealed, but have one mortally deficiency be that medical personnel still need the air in the aspiration contamination environment, though on the structure of mouth mask or the number of plies, improve, can therefore cause more medical personnel to be subjected to cross-infection owing to contaminated area inner virus density is big, medical personnel need again to work in the contaminated area for a long time, the SARS virus appeal is strong.

Summary of the invention:

Technical problem to be solved by this invention is:

The positive airway pressure whole body shielding system that provides a kind of respiratory gas source that needs protected personnel and contaminated area air to separate.

Technical scheme of the present invention is:

The first half in airtight head-shield is provided with non-return valve, the breathing position of head-shield and body enclosed hood upper part all are connected with air induction hose, flexible pipe is communicated with compressed air source by pressure-reducing valve, the eyes position of head-shield is that transparent material is made, enclose in the tippet along on stickup glue is arranged, on the body enclosed hood, have steam vent.

The interior hood of non-return valve is the tubular-shaped structures that has the outer, interior hood is with tubular outer hood outward, interior hood and outer hood are connected and fixed by annular base, the hood sidewall has steam vent outside, the import department of outer hood is airtight glued membrane, in the outlet of hood, protective cover is arranged outside glued membrane in glued membrane covers fully, protective cover is slidingly matched with outer hood sleeve pipe.

The invention has the beneficial effects as follows:

1, realized that protected personnel does not use the contaminated area air, cut off by this main route of transmission of respiratory tract infection;

2, it is good to isolate in the clothes aeration, and make to isolate in the clothes and effectively taken a breath, user of service's no feeling of oppression and heat comfortable and easy to wear, because of isolating the clothes internal pressure greater than ambient pressure, so virus can't enter from the outside and isolates in the clothes.

Description of drawings:

Fig. 1 is a structure chart of the present invention;

Fig. 2 is a non-return valve structure cutaway view of the present invention;

Wherein: hood, 18 inlet channels, 19 leakage ports in 1 non-return valve, 2 cephalic protection covers, 3 visual field windows, 4 steam vents, 5 body enclosed hoods, 6 pressure-reducing valves, 7 air induction hoses, 11 glued membranes, 12 snap rings, 13 protective covers, 14 outer hoods, 15 steam vents, 16 bases, 17.

The specific embodiment:

Head-shield and body enclosed hood can adopt airtight medical plastic to make, visual field window part can adopt lucite or transparent medical grade plastic and head-shield driving fit, or the whole transparent medical grade plastic that all adopts of head-shield is made, it is better that non-return valve is located at head-shield forehead position, after protected personnel enters the contaminated area, flexible pipe is docked with indoor external air source mouth, or flexible pipe directly docks with the compressed air bottle that is equipped with, head-shield and body enclosed hood are interior along with exhaling or air-breathing air pressure change, regulate by pressure-reducing valve, air pressure is remained between the 0--50mm water column, guarantee to remain malleation in head-shield and the body enclosed hood.

The glued membrane of non-return valve adopts the medical latex film, and in the outlet of hood, air flue was cut off in glued membrane covered fully and is enclosed in when human body is air-breathing, forms the isolation of the inside and outside gas of head-shield, and glued membrane is backed down when human body is exhaled, and forms an outlet passageway; Glued membrane can adopt snap ring to be fixed on outer hood import department; Adopting protective cover is when preventing that glued membrane is run-down, protective cover is pushed close interior hood outlet, so that protected personnel has the sufficient time to leave the contaminated area.

Claims

1, a kind of positive airway pressure whole body shielding system, it is characterized in that: the first half in airtight head-shield is provided with non-return valve, the breathing position of head-shield and body enclosed hood upper part all are connected with air induction hose, flexible pipe is communicated with compressed air source by pressure-reducing valve, the eyes position of head-shield is that transparent material is made, enclose in the tippet along on stickup glue is arranged, on the body enclosed hood, have steam vent.

2, a kind of positive airway pressure whole body shielding system according to claim 1, it is characterized in that: the interior hood of non-return valve is the tubular-shaped structures that has the outer, interior hood is with tubular outer hood outward, interior hood and outer hood are connected and fixed by annular base, the hood sidewall has steam vent outside, the import department of outer hood is airtight have glued membrane, glued membrane cover fully in the outlet of hood, protective cover is arranged outside glued membrane, and protective cover is slidingly matched with outer hood sleeve pipe.