Abstract: This invention relates to method and apparatus for collection of the complete fluorescence emission spectrum and the transient decay of a selected spectral band simultaneously with data acquisition times of less that one second. This invention is useful for studying human tissues and cells in vivo.

Abstract: This invention relates to method and apparatus for collection of the complete fluorescence emission spectrum and the transient decay of a selected spectral band simultaneously with data acquisition times of less that one second. This invention is useful for studying human tissues and cells in vivo.

Abstract: This invention relates to method and apparatus for collection of the complete fluorescence emission spectrum and the transient decay of a selected spectral band simultaneously with data acquisition times of less that one second. This invention is useful for studying human tissues and cells in vivo.

Abstract: This invention provides devices and apparatuses comprising the same, for windowless optical detection of particle-laden samples, for example aerosols or fluid suspensions. The devices make use of passive sheath flow as a mechanism for containing aerosol/fluid suspension flow. The operation of the device reduces particle loss inherent to conventional windowless optical detection schemes. Methods of optical detection and/or analysis of or the particles in a sample using devices of this invention are described.

Abstract: This invention provides devices and apparatuses comprising the same, for windowless optical detection of particle-laden samples, for example aerosols or fluid suspensions. The devices make use of passive sheath flow as a mechanism for containing aerosol/fluid suspension flow. The operation of the device reduces particle loss inherent to conventional windowless optical detection schemes. Methods of optical detection and/or analysis of or the particles in a sample using devices of this invention are described.

Abstract: Sensor means for monitoring the awareness status of an individual within a monitored environment (50) comprising means (55) for determining the attainment of at least one predetermined condition identifying the requirement for the awareness of an individual to be monitored, and operative to trigger an alarm (70), means (15) operable by the monitored individual for inhibiting the operation of the alarm, and delay means for delaying the triggering of the alarm (70) for a predetermined period after the attainment of the said predetermined condition.

Abstract: This invention relates to method and apparatus for collection of the complete fluorescence emission spectrum and the transient decay of a selected spectral band simultaneously with data acquisition times of less that one second. This invention is useful for studying human tissues and cells in vivo.

Abstract: A method of diagnosing pulmonary congestion is provided. At least one decrease in a trans-thoracic impedance value from a baseline trans-thoracic impedance value is sensed. At least one increase in a heart rate value from a baseline heart rate value is also sensed. Pulmonary congestion is diagnosed if the decrease in the trans-thoracic impedance value corresponding to the increase in the heart rate does not increase after a predetermined interval. Systems and programs incorporating the method are also provided.

Abstract: A method of diagnosing pulmonary congestion is provided. At least one decrease in a trans-thoracic impedance value from a baseline trans-thoracic impedance value is sensed. At least one increase in a heart rate value from a baseline heart rate value is also sensed. Pulmonary congestion is diagnosed if the decrease in the trans-thoracic impedance value corresponding to the increase in the heart rate does not increase after a predetermined interval. Systems and programs incorporating the method are also provided.

Abstract: A device and method useful in the diagnosis and treatment of congestive heart failure. Specifically the present invention senses the trans-thoracic impedance as well as patient posture. By correlating changes in posture with trans-thoracic impedance changes, the present invention is able to diagnose and assess the degree of congestive heart failure. The present invention is described in the context of an implantable pulse generator system, but it may also be practiced in conjunction with various types of implantable devices.