Negative Pressure

	Negative Pressure Negative pressure may refer to: * Negative value of a Pressure#Negative pressures, pressure variable * Negative room pressure, a ventilation technique used to avoid contaminating outside areas * Negative pressure ventilator, also known as an iron lung * Negative-pressure wound therapy {{Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Pressure Pressure (symbol: ''p'' or ''P'') is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure (also spelled ''gage'' pressure)The preferred spelling varies by country and even by industry. Further, both spellings are often used ''within'' a particular industry or country. Industries in British English-speaking countries typically use the "gauge" spelling. is the pressure relative to the ambient pressure. Various units are used to express pressure. Some of these derive from a unit of force divided by a unit of area; the SI unit of pressure, the pascal (Pa), for example, is one newton per square metre (N/m2); similarly, the pound-force per square inch (psi) is the traditional unit of pressure in the imperial and U.S. customary systems. Pressure may also be expressed in terms of standard atmospheric pressure; the atmosphere (atm) is equal to this pressure, and the torr is defined as of this. Manometric u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Negative Room Pressure Negative room pressure is an isolation technique used in hospitals and medical centers to prevent cross-contamination from room to room.Negative Room Pressure to Prevent Cross-Contamination Clean Air Solutions, Camil Farr, Retrieved 2010-03-10. It includes a ventilation that generates negative pressure (pressure lower than of the surroundings) to allow air to flow into the isolation room but not escape from the room, as air will naturally flow fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Negative Pressure Ventilator A negative pressure ventilator (NPV) is a type of mechanical ventilator that stimulates an ill person's breathing by periodically applying negative air pressure to their body to expand and contract the chest cavity.Shneerson, Dr. John M., Newmarket General Hospital, (Newmarket, England, Newmarket, Suffolk, U.K.)"Non-invasive and domiciliary ventilation: negative pressure techniques,"#5 of series "Assisted ventilation" in ''Thorax (journal), Thorax,'' 1991;46: pp.131-135, retrieved April 12, 2020Grum, Cyril M., MD, and Melvin L. Morganroth, MD"Initiating Mechanical Ventilation,"in ''Intensive Care Medicine'' 1988;3:6-20, retrieved April 12, 2020Rockoff, Mark, M.D."The Iron Lung and Polio," video (8 minutes), January 11, 2016, OPENPediatrics and Boston Children's Hospital on YouTube, retrieved April 11, 2020 (historical background and images, explanatory diagrams, and live demonstrations) [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]