Dynamic spectral phonocardiograph
Patent 4967760 Issued on November 6, 1990. Estimated Expiration Date: 
February 2, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 2, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3442264 Sector scanner display and recording system for ultrasonic diagnosis Monitoring system Heart rate detector Method for determining the starting point and the end point of closed spatial signal patterns Electronic stethoscope system and method Patent #: 4792145 InventorsApplicationNo. 306137 filed on 02/02/1989US Classes:600/528, Detecting heart sound600/512, Orthogonal heartbeat electric signals combined to form vector signal600/523Signal display or recordingExaminersPrimary: Jaworski, Francis J.Assistant: Manuel, George Attorney, Agent or FirmInternational ClassA61B 005/02AbstractA system of generating a spectral phonocardiogram which summarizes time-dependent changes in the heart sounds throughout the heart cycle. The system is based on the projection of spectral surfaces of the Fourier transform of heart sounds as a function of time and is a useful diagnostic tool both for a cardiologist and a general practitioner. Permanent copies of the spectral phonocardiograms can provide useful records for monitoring the development of heart disease in a given individual. The system provides a useful means for rapid screening of large groups of people for heart disease by non-specialists in cardiology. A variant of the system provides automated computer diagnosis of the probable nature of the heart disease. | |
