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  • Chambers designed for single patient (i.e., monoplace) treatment in which the air pressure is raised more than two times above the atmospheric pressure while the patient breathes near 100% medical grade oxygen. The elevated ambient pressure of the hyperbaric chamber reduces the size of gas bubbles trapped in vascular beds and accelerates their dissipation. Circulation is thereby restored to tissue in which the blood supply has been blocked or compromised. Typically, pure oxygen is delivered for patient breathing, either by a mask or hood or by oxygen pressurization of the chamber. These chambers typically consist of a metal or plastic horizontal cylinder with a metal hatch at one end. The patient sits on a chair or lies on a stretcher within the chamber. Throughhull access ports provide for patient support, such as electrical connections for patient monitoring and delivery of IV fluids. Viewports in the metal chamber allow observation. Monoplace hyperbaric chambers are used to treat any condition in which gas bubbles form in the blood, including pulmonary and cerebral air embolism, altitude and decompression sickness, and less frequently iatrogenic gas embolism that may occur during hospital procedures.
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