- a steel vessel in which atmospheric pressure can be raised or lowered by air compressors, used to treat divers or pilots afflicted with aeroembolism and to provide high-oxygen environments for certain medical treatments and operations. Also called recompression chamber, decompression chamber.[1960-65]
* * *or decompression chamber or recompression chamberSealed chamber supplying a high-pressure atmosphere.Breathing air at high pressure increases the oxygen level in tissues. This is used to inhibit growth of anaerobic bacteria (as in tetanus or gas gangrene); to increase the chance that babies with certain heart malformations will survive heart surgery; or to cause air bubbles (as in air embolism or decompression sickness) to be redissolved, carried to the lungs, and exhaled as pressure is gradually returned to normal.
* * *also called decompression chamber or recompression chambersealed chamber in which a high- pressure environment is used primarily to treat decompression sickness, gas embolism, carbon monoxide poisoning, gas gangrene resulting from infection by anaerobic bacteria, tissue injury arising from radiation therapy for cancer (see cancer: Radiation therapy (cancer)), and wounds that are difficult to heal.Experimental compression chambers first came into use about 1860. In its simplest form, the hyperbaric chamber is a cylindrical metal or acrylic tube large enough to hold one or more persons and equipped with an access hatch that retains its seal under high pressure. Air, another breathing mixture, or oxygen is pumped in by a compressor or allowed to enter from pressurized tanks. Pressures used for medical treatment are usually 1.5 to 3 times ordinary atmospheric pressure.The therapeutic benefits of a high-pressure environment derive from its direct compressive effects, from the increased availability of oxygen to the body (because of an increase in the partial pressure of oxygen), or from a combination of the two. In the treatment of decompression sickness, for example, a major effect of the elevated pressure is shrinkage in the size of the gas bubbles that have formed in the tissues. In the treatment of carbon monoxide poisoning, the increased oxygen speeds clearance of carbon monoxide from the blood and reduces damage done to cells and tissues.
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hyperbaric chamber — noun a large chamber in which the oxygen pressure is above normal for the atmosphere; used in treating breathing disorders or carbon monoxide poisoning • Hypernyms: ↑chamber * * * a steel vessel in which atmospheric pressure can be raised or… … Useful english dictionary
hyperbaric chamber — barokamera statusas T sritis Gynyba apibrėžtis Kamera, naudojama slėgiui keisti iki tokio, kuris būna vandenyje, leidžiantis žemiau jūros paviršiaus, ar ore. Ši kamera yra vienintelė priemonė kesoninei (dekompresinei) ligai, patirtai skrydžių ar… … NATO terminų aiškinamasis žodynas
hyperbaric chamber — A chamber used to induce an increase in ambient pressure as would occur in descending below sea level, in a water or air environment. It is the only type of chamber suitable for use in the treatment of decompression sickness in flying or diving.… … Military dictionary
hyperbaric chamber — /haɪpəbærɪk ˈtʃeɪmbə/ (say huypuhbarik chaymbuh) noun → decompression chamber … Australian English dictionary
hyperbaric chamber — noun A vessel containing air at an elevated pressure, especially one used to administer oxygen to a patient … Wiktionary
hyperbaric chamber — a compartment in which the air pressure may be raised to more than normal atmospheric pressure; used in treatment of gas gangrene and other anaerobic infections, or other conditions in which a high concentration of oxygen is desirable, and for… … Medical dictionary
hyperbaric chamber — hy′perbar′ic cham′ber n. med a steel vessel in which atmospheric pressure can be raised or lowered by air compressors, used to treat aeroembolism and to provide high oxygen environments for certain medical procedures • Etymology: 1960–65 … From formal English to slang
Hyperbaric medicine — Hyperbaric medicine, also known as hyperbaric oxygen therapy (HBOT) is the medical use of oxygen at a higher than atmospheric pressure. Uses Several therapeutic principles are made use of in HBOT: *The increased overall pressure is of therapeutic … Wikipedia
Hyperbaric — Hy per*bar ic, a. [hyper + baric.] 1. of, pertaining to, or using a pressure that is greater than normal atmospheric pressure; as, a hyperbaric chamber, where divers may decompress slowly to avoid the bends. [PJC] 2. of, pertaining to, or using… … The Collaborative International Dictionary of English
Hyperbaric — Pertaining to gas pressures greater than 1 atmosphere* of pressure. Also pertaining to solutions that are more dense than the medium to which they are added. The term hyperbaric is derived from Greek roots: hyper meaning high, beyond, excessive,… … Medical dictionary