The HMS-4000 is a Class A, pressure vessel for human occupancy (PVHO) that is designed in a horizontal cylindrical geometry. Configurations vary from one (1) to three (3) compartments. These chambers are capable of administering hyperbaric oxygen therapy treatments to four (4) up to twenty-four (24) patients simultaneously. These chamber models comprise the HMS 4000 Horizontal Cylindrical Multiplace Hyperbaric Chamber System Product Family. Each system consists of a multiplace hyperbaric chamber with several major subsystems that are interconnected to form a complete system, which includes an operation control system that uses computer control technology. Design pressures range from 3ATA (~29.4psi) up to 6ATA (~73.5psi). The HMS-4000 multiplace hyperbaric chamber is designed, fabricated, and tested in compliance with the following FDA consensus standards: American Society of Mechanical Engineers / Pressure Vessel for Human Occupancy (ASME/PVHO-1) and the National Fire Protection Agency (NFPA) 99, Health Care Facilities.
A mains electricity (AC-powered) hard-shelled vessel (e.g., metal, acrylic) in which a patient is placed to receive hyperbaric oxygen therapy (HBOT), the medical use of oxygen (O2) at a higher than atmospheric pressure. The device increases environmental O2 pressure above normal to promote movement of O2 into a patient's tissues. It typically includes an airlock(s) for patient/object entry, view ports, air valves, and a control panel. It is used to treat disorders that typically include decompression sickness, carbon monoxide poisoning, air/gas embolism, necrotizing tissue infections, and various injuries/wounds; it can also be used to study effects of pressure and decompression.