Surgery – Truss – Pad
Patent
1992-06-25
1993-12-21
Howell, Kyle L.
Surgery
Truss
Pad
12866206, 12866109, 7386125, A61B 812
Patent
active
052714047
ABSTRACT:
An apparatus for generating a velocity spectrogram is described. The apparatus includes a transducer which is positionable within a vessel. The transducer receives a time-varying Doppler signal which contains information related to fluid velocity values within the vessel. A Fourier transformation device processes the time-varying Doppler signal to generate a sequence of spectra. Each spectrum corresponds to a segment of the time-varying Doppler signal and defines a set of velocities and their corresponding spectral values. A device is used to identify the instantaneous spectral peak velocity within each spectra. The peak velocity corresponds to the highest velocity within a spectra which has a spectral value above a defined threshold value which is related to the background noise level. The sequence of spectral peak velocities is plotted on a visual interface device to form an instantaneous spectral peak velocity waveform.
REFERENCES:
patent: 4608993 (1986-09-01), Albert
patent: 4848354 (1989-07-01), Angelsen et al.
patent: 5111823 (1992-05-01), Cohen
Instruction Manual, MedaSonics, Vascular Spectrum Analyzer, Model SP25A, Version 5.0.
Service Manual, MedaSonics, Vascular Spectrum Analyzer, Model SP25A; Jul., 1986.
Corl Paul D.
Kaiser David
Lifshitz Ilan
Cardiometrics Inc.
Howell Kyle L.
Manuel George
LandOfFree
Method and apparatus for processing signal data to form an envel does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for processing signal data to form an envel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for processing signal data to form an envel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-303123