Other

Virginia Technologies, Inc

Josef K Hudson

Robert A Ross

Stephen H Jones

James M Beach

Robert G Kelly

The present invention relates generally to a therapeutic pulse generator system used to provide energy efficient stimulation/pacing by causing controlled cellular depolarization based on pre-measured charge transfer. This is accomplished by periodic electrical characterization of the electrode-tissue interface. Each channel of stimulation is programmed individually enabling the clinician to customize the therapeutic protocol. Energy efficiency may also be further improved through the use of a multi-channel lead in which the amount of energy required for each subsequent channel may be set to be less than the previous channel. The total energy required for multi-channel stimulation/pacing has also been shown to be less than that required by a single channel for the same therapeutic benefit.

Energy efficient therapeutic pulse generator system

The disclosed light standard system provides flat field illumination through the use of an integrating light chamber which is in communication with a microprocessor. The light chamber has at least one high performance light source, such as LED's, recessed within the walls and positioned to prevent light from directly exiting the chamber. A photosensor monitors multiple parameters within the chamber and interacts with the microprocessor to control intensity, temperature and wavelengths. The lights standard operates in benchmark, ratio light, linearity and transient response modes with all parameters being programmable and storable within said microprocessor.

Light standard for microscopy

A system for monitoring the material changes in a structure is disclosed through the use monitoring instruments embedded within the structure. The instruments have at least one sensor with electrodes in contact with the surrounding material and electronics that are contained within the instrument. The sensor signals are converted to digital and transmitted to an external data logger or computer for display of the digitized signals. The connection between the microcontroller and the data logger can be either through hardwire or RF. Power is provided to the electronic sensors through either external or local methods. A power management system can be used to place the electronics into a sleep mode when not in use. The electronics are encapsulated within potting material within an instrument case that is manufactured from a material having a flexural modulus equal to, or greater than, the surrounding material to prevent mechanical failure of the device before failure of the surrounding material. The case has protective trays to protect the electrodes and rounded adjacent connection lengths to prevent the case from developing cracks.

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Charlottesville, VA, United States of America

Josef K Hudson