Recompression chamber


Recompression chamber

A recompression chamber is a pressure vessel used to treat divers suffering from certain diving disorders such as decompression sickness.

Often the terms "recompression chamber", "decompression chamber", "hyperbaric chamber", and "hyperbaric oxygen therapy chamber" are used interchangeably. The names reflect the different purposes that the chambers are designed for, rather than their capability. Each is capable, within limits, of operating in the others' role:
* A decompression chamber is used in surface supplied diving to allow the divers to complete their decompression stops at the end of a dive on the surface rather than underwater.
* A hyperbaric oxygen therapy chamber is used in a hospital or sporting context to treat patients whose condition might benefit from hyperbaric oxygen treatment, including divers. Hyperbaric chambers capable of admitting more than one patient (multiplace) and an inside attendant have advantages for the treatment of decompression sickness and are preferred by the U.S. Coast Guard. Divers with serious complications or injuries may be attended to in this manner during recompression. In addition, multiplace chambers are generally capable of greater depth of recompression, should the need arise. For less seriously ill divers, the more common monoplace chamber is often used, especially if it is the only one available. A modified treatment regimen is then used.
* Treatment is ordered by the treating physician (medical diving officer), and is usually in accordance with the U.S. Navy Diving Manual (U.S Navy Diving Tables). Other treatment tables have been developed, including the Catalina Tables, and others, including proprietary tables.
** Test of pressure. If the diagnosis of decompression illness is considered questionable, the diving officer may order a test of pressure. This typically consists of a recompression to 60 feet seawater for up to 20 minutes. If the diver notes significant improvement in symptoms, or the operator can detect changes in the physical examination, a recompression algorithm is followed.
*Representative diving tables:
** U.S. Navy Table 6. This diving table consists of compression to the depth of 60 feet seawater with the patient on oxygen. The diver is later decompressed to 30 feet on oxygen, then slowly pushed to surface pressure. This table typically takes over 7 hours and may be extended further. It is the most common treatment for type 2 decompression illness.
** U.S. Navy Table 5. This diving table is similar to Table 6 above, but is shorter in duration. It may be used in divers with less severe complaints (type 1 decompression illness).
** U.S. Navy Table 9. This diving table consists of compression to 45 feet seawater with the patient on oxygen, with later decompression to surface pressure. This table is often used by monoplace hyperbaric chambers, or as a follow-up treatment in multiplace chambers.

ee also

*Diving chamber


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Look at other dictionaries:

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  • recompression chamber — See hyperbaric chamber …   Military dictionary

  • recompression chamber — /ree keuhm presh euhn/. See hyperbaric chamber. [1950 55; RE + COMPRESSION] * * * …   Universalium

  • recompression chamber — /ree keuhm presh euhn/. See hyperbaric chamber. [1950 55; RE + COMPRESSION] …   Useful english dictionary

  • recompression chamber — /rikəmˈprɛʃən tʃeɪmbə/ (say reekuhm preshuhn chaymbuh) noun a room in which a diver suffering from the bends may be placed, in which the air pressure is increased to minimise the effects of the disorder, and then gradually brought to normal …   Australian English dictionary

  • chamber — /chaym beuhr/, n. 1. a room, usually private, in a house or apartment, esp. a bedroom: She retired to her chamber. 2. a room in a palace or official residence. 3. the meeting hall of a legislative or other assembly. 4. chambers, Law. a. a place… …   Universalium

  • Diving chamber — The decompression chamber at the Neutral Buoyancy Lab A diving chamber has two main functions: as a simpler form of submersible vessel to take divers underwater and to provide a temporary base and retrieval system in the depths; as a land or ship …   Wikipedia

  • In-water recompression — or underwater oxygen treatment (IWR) is the emergency treatment of decompression sickness (DCS) of sending the diver back underwater to allow the gas bubbles in the tissues, which are causing the symptoms, to resolve. It is a risky procedure that …   Wikipedia

  • hyperbaric chamber — 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… …   Universalium

  • caisson de recompression — 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


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