Process and apparatus for the real time adaptive filtering of ca

Details Process and apparatus for the real time adaptive filtering of ca Process and apparatus for the real time adaptive filtering of ca

1980-05-15

1982-04-20

Michell, Robert W.

Surgery

Truss

Pad

73 4R, 367, A61B 502

Patent

active

043253822

ABSTRACT:
A process and apparatus for measuring the catheter fluid pressure of a patient wherein a pressure transducer is used to convert the pressure into an electrical signal and a pressure indicator indicates the pressure corresponding to the electrical signal. A turnable active filter is disposed in the signal path between the transducer and the pressure indicator and the frequency parameters of the filter are adapted to that of the catheter in real time.

REFERENCES:
patent: 4232373 (1980-11-01), Jackson et al.
Brower, R. W. et al., "A Fully Automotic Device for Compensating for Artifacts in Conventional Catheter-Monometer Pressure Recordings", BME (GB) V10#8 Aug. 1972. pp. 305-310.
Parson, I.D. et al., "Negative Feedback Applied to Pressure Transducers" MBE vol. 14 #6 pp. 591-598 Nov. 1976.
Damenstein, A. et al., "Electronic Compensator for Pressure Waveform Distortion by Fluid-filled Catheters", MBE vol. 14#2 pp. 186-192 Mar. 1976.

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