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| Number | Title | Issue Date |
| 6631714 | Tissue dilator devices, methods of fabrication of tissue dilators, and methods of use for tissue dilators The invention is directed to devices and methods for tissue dilators. The present invention encompasses a large variety of discrete structure, all intended to be applied externally to a subject for the purpose of dilating, or lifting, tissue adjacent to n... | 10/14/2003 |
| 6357436 | Nasal dilator A nasal dilator for dilating a first nasal passage and a second nasal passage of a nose, including an elastic element having a first end and a second end, the elastic element movable toward an expanded configuration wherein the length of the elastic eleme... | 03/19/2002 |
| 4817627 | Electroencephalographic monitoring A method and apparatus for obtaining an indication of the extent and duration of reduced power in electroencephalographic signals as a basis for determining whether blood flow to the human brain providing such signals needs to be increased.... | 04/04/1989 |
| 4794533 | System activity change indicator A system for measuring changes in the number of maxima and minima occurring in a signal over time which changes indicate activity changes in a subject from which the signal measured is obtained.... | 12/27/1988 |
| 4776345 | Interactive determination of sleep stages Such representations may include the average frequency value of electroencephalographic signals, the logarithm of the power of electromyographic signals, and eye movement indications from electrooculographic signals. Criteria for dividing the records of s... | 10/11/1988 |
| 4610259 | EEG signal analysis system An electroencephalograph (EEG) signal analyzer allows the examination of the changes in EEG cerebral activity at various sites in response to an event (e.g. a stimulus or task). The analyzer includes one or more signal processing modules which periodicall... | 09/09/1986 |
| 4579125 | Real-time EEG spectral analyzer An electroencephelograph (EEG) signal analysis system automatically determines and displays, on a real-time basis, the frequency content of spontaneous EEG signals from the brain. The analog EEG signals from a plurality of channels are sampled and convert... | 04/01/1986 |
