Blood flow measurement catheter

Surgery – Truss – Pad

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128772, 604 96, A61B 1000

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active

047336692

ABSTRACT:
A catheter having a mechanism for positioning a doppler shift transducer carried by the catheter against a side wall of a blood vessel. A portion of the catheter near the distal end is adjustable for movement between a first position in line with the axis of the catheter and a second position in which such catheter portion is in the shape of an arc extending outward from the axis of the catheter such that the arcuate portion will wedge the body of the catheter against the other wall of the blood vessel. The adjustable portion can be manipulated using a mechanism near the proximal end of the catheter outside of a patient's body.

REFERENCES:
patent: 625382 (1899-05-01), Clark
patent: 3448739 (1969-06-01), Stark et al.
patent: 3554030 (1971-01-01), Peronneau
patent: 3566682 (1971-03-01), Winkler, Jr.
patent: 3580983 (1971-05-01), Jackson
patent: 3734083 (1970-09-01), Kolin
patent: 3746003 (1973-07-01), Blake et al.
patent: 3865118 (1975-02-01), Bures
patent: 3935864 (1976-02-01), Lagergren
patent: 3938530 (1976-02-01), Santomieri
patent: 3939843 (1976-02-01), Smyth
patent: 3995623 (1976-12-01), Blake et al.
patent: 4029104 (1977-06-01), Kerber
patent: 4137906 (1979-02-01), Akiyama et al.
patent: 4299226 (1981-11-01), Banka
patent: 4328806 (1982-05-01), Cooper
patent: 4329993 (1982-05-01), Lieber
patent: 4329994 (1982-05-01), Cooper
patent: 4354500 (1982-10-01), Colley et al.
patent: 4375818 (1983-03-01), Suwaki et al.
patent: 4407271 (1983-10-01), Schiff
patent: 4448195 (1984-05-01), LeVeen
patent: 4545244 (1985-10-01), Yasuda et al.
patent: 4582067 (1986-04-01), Silverstein et al.
patent: 4584874 (1986-04-01), Ruhovets
Martin et al, "An Ultrasonic Catheter for Intravascular Measurement of Blood Flow", Transactions on Sonics and Ultrasonics, vol. SU-27, No. 6, Nov. 1980, pp. 277-286.
Allen et al, "Integrated Circuits for a Bidirectional Implantable Pulsed Doppler Ultrasonic Blood Flowmeter", IEEE Journal of Solid State Circuits, vol. SC-13, No. 6, Dec. 1978, pp. 853-856.
"Catheter-Tip Gauge for Measuring Blood Flow Velocity and Vessel Diameter in Dogs," H. P. Piper & Lawrence T. Paul, Journal of Applied Physiology, vol. 24, No. 2, Feb. 1968.
"A Cathether-Tip Pressure and Velocity Sensor," H. F. Stegall, H. L. Stone & V. S. Bishop, 20th Annual Conf. on Engineering in Medicine & Biology, 11/15/67.
"Aortic Flow Velocity in Man During Cardiac Arrhythmias Measured with the Doppler Catheter-Flowmeter System," A. Benchimol, H. F. Stegall, P. R. Maroko, J. L. Gartlan, L. Brener; American Heart Journal, tl vol. 78, No. 5, pp. 649-659, Nov. 1969.
"A New Approach to Electromagnetic Blood Flow Determination by Means of Catheter in an External Magnetic Field," A. Kolin, Proceedings of the National Academy of Sciences, vol. 65, No. 3, pp. 521-527, Mar. 1970.
"An Electromagnetic Catheter Blood Flow Meter of Minimal Lateral Dimensions," A. Kolin, Proceedings of the National Academy of Sciences, vol. 66, No. 1, pp. 53-56, May 1970.
"A Removable Extraluminal Doppler Probe for Continuous Monitoring of Changes in Cardiac Output," B. A. Keagy, C. L. Lucas, H. S. Hsiao, B. R. Wilcox, J. Ultrasound Medicine, vol. 2, pp. 357-362, Aug. 1983.
"Bidirectional Blood Flow Velocity in the Cardiac Chambers and Great Vessels Studied with the Doppler Ultrasonic Flowmeter," A Benchimol, K. B. Desser, J. L. Gartlan, Jr.; The American Journal of Medicine, vol. 52, pp. 467-473, Apr., 1972.
"A Single-Crystal Ultrasonic Catheter-Tip Velocity Probe," G. J. Hartley & J. S. Cole, Medical Instrumentation, vol. 8, No. 4, Jul.-Aug., 1974, pp. 241-243.
"Totally Implantable Bidirectional Pulsed Doppler Blood Flow Telemetry: Integrated Timer-Exciter Circuitry and Doppler Frequency Estimation," H. B. Allen, Tech. Report No. 4958-4, PHS Research Grant PQ1 GM17940, pp. iii-147, May 1977.
"Totally Implantable Bidirectional Pulsed Doppler Blood Flow Telemetry: Integrated Ultrasonic Receiver, Diameter Detection, and Volume Flow Estimation," J. W. Knutti, Tech. Rept. No. 4958-5, PHS Research Grant P01 GM17940, pp. iii-iv, and Chapters I, II, III, pp. 66-80, 121-137, 151-165.
"The Pulsed Doppler Coronary Artery Catheter," J. S. Cole & C. J. Hartley; Circulation, vol. 56, No. 1, Jul. 1977.

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