There is disclosed a method and system for determining the partial pressure of at least one gas in a mixture of gasses contained in a pressure vessel, the mixture being pressurised to a level which is above local atmospheric pressure. The method comprises the steps of positioning a gas analysis sensor (14) within a pressure vessel (10); exposing the sensor to the mixture of gasses at the pressure level found in the pressure vessel; operating the sensor to measure the actual partial pressure of the at least one gas in the mixture contained in the vessel; and periodically calibrating the sensor by directing a calibrating gas mixture (20, 22) to the sensor in the chamber, the calibrating gas mixture being breathable by a human being.

The present invention is a mobile hyperbaric unit including a vehicle having a vehicle chassis with a front cabin and a rear bed. A partition can extend upwardly from the rear bed at a position next to the cabin. A pod can be removably attachable to the vehicle chassis, the pod can be sized and shaped to occupy and rest upon the rear bed. A detachable connection can enable attachment or detachment of the pod from the vehicle chassis. The partition can have a portion that extends at least partially over the pod top wall. A pod chassis enables the pod to be transported independently of the vehicle chassis. A control station that has ambient pressure can be located in between the partition and the pod. A desired pressure that is not ambient pressure can be maintained within the pod interior by support systems on the vehicle.

The present invention relates to a hyperbaric ambulance and transfer-under-pressure (TUP) unit. More particularly, the present invention relates to a vehicle for emergency transport and treatment of a patient that is capable of providing hyperbaric oxygen treatment to the patient, and a mobile unit for transferring the patient from the vehicle to a medical care facility. More particularly, the present invention includes a vehicle having a driver section and a vehicle chassis having a patient section that includes a hyperbaric treatment chamber. An entrance module can be positioned in between the driver section and the patient section, the entrance module having a communication and control compartment and a pressure module. The pressure module can have at least two pressure hatches, wherein at least one of the at least two pressure hatches allows personnel to enter the pressure module from the control compartment, and at least one of the at least two pressure hatches allows personnel to enter the treatment chamber from the pressure module. The pressure module enables a user to selectively enter or exit the entrance module while simultaneously maintaining a selected elevated pressure value in said patient section, and preferably enables a user to selectively enter or exit said hyperbaric treatment chamber from the entrance module while simultaneously maintaining a selected elevated pressure value in the patient section.

A portable and compact hyperbaric chamber includes an inflatable chamber, a weighted base, a dump valve, at least one auxiliary port, an external pressure gage, a plurality of fill valves, and a plurality of pressure relief valves. The access opening is integrated into a lateral panel of the inflatable chamber and provide in and out access to the inflatable chamber. The weighted base is mounted to the base panel and functions as a stable base. The plurality of fill valves is in fluid communication with the inflatable chamber to provide compressed air from a compressor so that the inflatable chamber can be pressurized. The plurality of pressure relief valves is in fluid communication with the inflatable chamber to maintain a specific pressure within the inflatable chamber. The dump valve, the auxiliary port, and the external pressure gage are in fluid communication with the inflatable chamber to optimize the functionality.

An exhaust gas flow control system for an oxygenator of an extracorporeal ventilation system connected to an oxygenation gas supply line and to an exhaust line for removal of exhaust gas comprises a flow control path, a pressure control path, an exhaust flow regulator responsive to the controller, and an exhaust gas pressure regulator responsive to a controller configured to maintain a pre-determined pressure level in the exhaust line. This provides a better degree of control over the pressure across the oxygenator from oxygenation gas inlet to exhaust.

The present application provides a radiation damage protecting agent comprising hydrogen gas as an active ingredient at a concentration of 18.5% by volume or less, for treating or alleviating, in a hyperbaric capsule under a pressure higher than standard atmospheric pressure, radiation damage in a human patient who has been exposed to radiation or who has received or receives radiotherapy, and a hyperbaric capsule for administering a hydrogen gas-containing therapeutic agent such as the radiation damage protecting agent to a patient including a human.

The present application provides a radiation damage protecting agent comprising hydrogen gas as an active ingredient at a concentration of 18.5% by volume or less, for treating or alleviating, in a hyperbaric capsule under a pressure higher than standard atmospheric pressure, radiation damage in a human patient who has been exposed to radiation or who has received or receives radiotherapy, and a hyperbaric capsule for administering a hydrogen gas-containing therapeutic agent such as the radiation damage protecting agent to a patient including a human.

A patient isolation unit (PIU) for use in marine rescues. The PIU of this invention is useful to safely transport personnel exposed to, or potentially exposed to, an identified and/or known infectious agent or chemical warfare agent (CWA) on marine vessels and/or aircraft such as Coast Guard boasts, cutters and aircraft. The PIU has a generally tapered tubular shape compatible with wire rescue baskets conforming in shape to the human body and into which an injured, sick, or disabled person can be safely strapped, such as the Stokes litter rescue basket for hoisting and fit in rotary wing aircraft.

A patient isolation unit (PIU) for use in marine rescues. The PIU of this invention is useful to safely transport personnel exposed to, or potentially exposed to, an identified and/or known infectious agent or chemical warfare agent (CWA) on marine vessels and/or aircraft such as Coast Guard boasts, cutters and aircraft. The PIU has a generally tapered tubular shape compatible with wire rescue baskets conforming in shape to the human body and into which an injured, sick, or disabled person can be safely strapped, such as the Stokes litter rescue basket for hoisting and fit in rotary wing aircraft.

A DAP unweighting system comprising an unweighting assembly and an exercise machine wherein the unweighting system is adaptable to the exercise machine and uses existing framing elements of the exercise machine to achieve an effective and user friendly DAP unweighting system assembly.