Abstract: In a first aspect, a therapy device is provided. The therapy device includes (1) a hyperbaric chamber adapted to expose at least a target tissue area of a patient to a hyperbaric environment; and (2) a light therapy device adapted to expose the target tissue area of the patient to one or more doses of light energy while the target tissue area is within the hyperbaric chamber. Numerous other aspects are provided.

Abstract: In a first aspect, an apparatus for use in light therapy is provided that includes (1) at least one light emitting diode array adapted to emit a wavelength of light; and (2) a targeting mechanism coupled to the at least one light emitting diode array so as to allow light emitted from the at least one light emitting diode array to be repeatably positioned on a target area during non-contact light therapy. Numerous other aspects are provided.

Abstract: In a first aspect, an apparatus for use in light therapy is provided that includes (1) at least one light emitting diode array adapted to emit a wavelength of light; and (2) a targeting mechanism coupled to the at least one light emitting diode array so as to allow light emitted from the at least one light emitting diode array to be repeatably positioned on a target area during non-contact light therapy. Numerous other aspects are provided.

Abstract: A mattress and temperature control system for preventing pressure ulcers is provided. The mattress and temperature control system may include at least two chambers that may be alternately pressurized to each independently support a patient's body reclined on the mattress at different times. In some embodiments, the chambers may be implemented as an inflatable tubing system including at least two inflatable tubing circuits each having inflatable tubes disposed adjacent one another in an alternating manner. The tubes may be inflated with liquid or gas fluids. The system may include a tube pressurizing control device for controlling the inflation of the at least two inflatable tubing circuits in an alternating manner. A gas permeable membrane may encapsulate the inflatable tubing system and may be used to move air between the patient and the mattress for cooling and to remove any moisture.

Abstract: In a first aspect, a monoplace hyperbaric chamber providing Venturi induced gas circulation and ventilation is disclosed. The chamber includes a control and monitoring system that offers reduced oxygen consumption, duplex pressure gauges, referenced flow control, a patient activated stop function, an independent pressure time recorder, and/or a precise pressure control circuit that uses a 1:1 forced-balanced volume amplifier adapted to supply gas to and exhaust gas from the chamber through different penetrators and/or use flow-control check valves supplied with static reference or set pressures. A computer control and monitoring subsystem is also disclosed. Numerous other aspects are provided.

Abstract: In one aspect, a wound management system is provided. The wound management system includes a multi-lumen cannula adapted to be disposed in a wound site. The multi-lumen cannula includes (1) a fiber optic light distribution system adapted to irradiate the wound site with light; (2) one or more catheters adapted to deliver a fluid to the wound site; and (3) one or more evacuation lines adapted to remove fluid from the wound site. Numerous other aspects are provided.

Abstract: In a first aspect, a therapy device is provided. The therapy device includes (1) a hyperbaric chamber adapted to expose at least a target tissue area of a patient to a hyperbaric environment; and (2) a light therapy device adapted to expose the target tissue area of the patient to one or more doses of light energy while the target tissue area is within the hyperbaric chamber. Numerous other aspects are provided.

Abstract: In a first aspect, an apparatus for use in light therapy is provided that includes (1) at least one light emitting diode array adapted to emit a wavelength of light; and (2) a targeting mechanism coupled to the at least one light emitting diode array so as to allow light emitted from the at least one light emitting diode array to be repeatably positioned on a target area during non-contact light therapy. Numerous other aspects are provided.

Abstract: The present invention provides an improvement in a card reader type audio visual teaching device. The device employs a card handling mechanism for moving an information card which may contain both audio and visual information, across a record/playback transducing head. A dual track magnetic stripe on the information card carries instructor information or a question on one track to be audibly reproduced by the device which a student can hear through a speaker or preferably a set of headphones. A microphone permits a student to record an attempted repetition or response on the second track. The improvement comprises a multispeed card transport drive mechanism which permits either the student track or both the instructor track and the student track to be driven past the record/playback head at a substantially reduced rate. Additionally, the transport drive mechanism includes a repeat mechanism for returning the card to an initial position.

Abstract: An improvement is provided in an audio visual teaching device which is particularly suitable for teaching the proper and correct pronunciation of words, phrases, etc. The device employs a card handling mechanism for moving an information card across a record/playback transducing head. A dual track magnetic stripe on the card carries information on one track indicating the correct pronunciation of a particular word or group of words which the student can hear through a speaker or preferably a set of headphones. Additionally, the device includes a microphone and record portion so that the student can practice speaking a word which then is simultaneously recorded on a second track on the magnetic stripe so that the student may replay the second track and listen to his own pronunciation and compare it to the model on the first track.

Abstract: Low density nuclear fuel pellets are produced by mixing uranium dioxide powder and/or plutonium dioxide powder with ammonium oxalate, forming the mixture into pellets and sintering the pellets.

Abstract: Sintered nuclear fuel pellets of improved dimensional stability under irradiation are produced by controlling the production of voidage in the pellets during manufacture of the pellets.