Surgery – Instruments – Internal pressure applicator
Patent
1995-06-07
1997-03-11
Shay, David M.
Surgery
Instruments
Internal pressure applicator
606191, 606171, 606169, 604 22, A61B 1700
Patent
active
056096062
ABSTRACT:
An angioplasty balloon catheter particularly adapted for ablation of a stenosis in vivo has a balloon which may be inflated with a conductive contrast fluid injected proximally to the balloon, and is furthermore metalized on the outside of the balloon and catheter shaft. The balloon has piezoelectric properties, and may be excited by application of an ultrasonic signal across the balloon between the metalized surface and the contrast fluid. The catheter is guided by a centrally located guide wire to the site of the stenosis. If the distal tip of the catheter shaft cannot pass through the stenosis, excitation of the piezoelectric balloon in a deflated state at the site of the stenosis causes ultrasonic hammering vibrations at the tip of the catheter shaft which ablate the stenosis. After the tip of the catheter has hammered its way across the stenosis, and while maintaining the ultrasonic excitation signal, the balloon is inflated to keep the vibrating balloon surface in contact with the stenosis. Unlike the case with other inflatable balloon catheters which simply press the stenosis against the blood vessel wall, the stenosis is broken up by ultrasonic vibrations and is carried away by the blood flow, minimizing the risk of re-stenosis.
REFERENCES:
patent: 2615865 (1952-10-01), Gilbert et al.
patent: 2615866 (1952-10-01), Gilbert et al.
patent: 2615867 (1952-10-01), Gilbert et al.
patent: 2615868 (1952-10-01), Miller
patent: 2615869 (1952-10-01), Folt
patent: 2615870 (1952-10-01), Folt
patent: 2615871 (1952-10-01), Folt
patent: 2615872 (1952-10-01), Averill
patent: 2615873 (1952-10-01), Averill
patent: 2615874 (1952-10-01), Gilbert et al.
patent: 2615875 (1952-10-01), Gilbert et al.
patent: 2615876 (1952-10-01), Gilbert et al.
patent: 2615877 (1952-10-01), Folt
patent: 2615878 (1952-10-01), Folt
patent: 2615879 (1952-10-01), Folt et al.
patent: 2615880 (1952-10-01), Folt
patent: 2628954 (1953-02-01), Gilbert
patent: 2650911 (1953-09-01), Gilbert et al.
patent: 2654728 (1953-10-01), Gilbert et al.
patent: 2657197 (1953-10-01), Carlson
patent: 2716104 (1955-08-01), Gilbert et al.
patent: 2716105 (1955-08-01), Gilbert et al.
patent: 2716106 (1955-08-01), Gilbert et al.
patent: 2740769 (1956-05-01), Gilbert et al.
patent: 3506991 (1970-05-01), Adams, Jr. et al.
patent: 4490421 (1981-12-01), Levy
patent: 4522194 (1985-06-01), Normann
patent: 4637401 (1987-01-01), Johnston
patent: 4638287 (1987-01-01), Radice
patent: 4674336 (1987-06-01), Johnston
patent: 4698058 (1987-10-01), Greenfeld et al.
patent: 4802490 (1989-02-01), Johnston
patent: 4841977 (1989-06-01), Griffith et al.
patent: 4843275 (1989-06-01), Radice
patent: 4869263 (1989-09-01), Segal et al.
patent: 4878898 (1989-11-01), Griffin et al.
patent: 4889128 (1989-12-01), Millar
patent: 4911170 (1990-03-01), Thomas et al.
patent: 4920967 (1990-05-01), Cottonaro et al.
patent: 4951677 (1990-08-01), Crowley et al.
patent: 4957111 (1990-09-01), Millar
patent: 4991588 (1991-02-01), Pflueger et al.
patent: 5009662 (1991-04-01), Wallace et al.
patent: 5046503 (1991-09-01), Schneiderman
patent: 5076268 (1991-12-01), Weber
patent: 5109861 (1992-05-01), Walinsky et al.
patent: 5112347 (1992-05-01), Taheri
patent: 5135001 (1992-08-01), Sinofsky et al.
patent: 5443495 (1995-08-01), Buscemi et al.
American Heritage Dictionary p. 67, definition of "ablation".
Fischell, T. A., et al., "Ultrasonic Energy, Effects on Vascular Function and Integrity", Circulation, vol. 84, No. 4, pp. 1783-1795. Oct. 1991.
Siegal, R. J., et al., "Percutaneous peripheral ultrasonic angioplasty: Results of the first pilot study and follow-up", Herz, 15:5, pp. 329-334 (1960).
Barry, K. J., et al., "The effect of radiofrequency-generated thermal energy on the mechanical and bioplasty characteristics of the arterial wall in vivo: Implications for radiofrequency angioplasty", American Hear Journal, vol. 117, No. 2, pp. 332-341 (Feb. 1989).
Siegel, R. J., et al., "Percutaneous Ultrasonic Angioplasty: Initial Clinical Experience", The Lancet, pp. 772-774, Sep. 30, 1989.
Avedissian, M. G., et al., "Percutaneous Transluminal Coronary Angioplasty: A Review of Current Balloon Dilation Systems", Catheterization & Cardiovascular Diagnosis, 18:263-275 (1989).
Langberg, J. J., et al., "The Echo-Transponder Electrode Catheter: A New Method for Mapping the Left Ventricle", J. Amer. Col. Cardiology, vol.. 12, No. 1, pp. 218-223 (Jul. 1988).
Barzilai, B., et al., "Quantitative Ultrasonic Characterization of the Nature of Atherosclerotic Plaques in Human Aorta", Circulation Research, vol. 60, No. 3, pp. 459-463 (Mar. 1987).
Reder, G. S., and Vliestra, R. E., "Coronary Angioplasty: 1986", Modern Concepts of Cardiovascular Disease, vol. 55, No. 10, pp. 49-53 (Oct. 1986).
Martin, R. W., and Watkins, D. W., "An Ultrasonic Catheter for Intravascular Measurement of Blood Flow: Technical Details", IEEE Trans. Sonics & Ultrasonics, vol, SU-27, No. 6, pp. 277-286 (Nov. 1980).
Cole, J. S., and Hartley, C. J., "The Pulsed Doppler Coronary Artery Catheter: Preliminary Report of a New Technique for Measuring Rapid Changes in Coronary Artery Flow Velocity in Man", Circulation, vol. 56, No. 1, pp. 18-25 (Jul. 1977).
Hartley, C. J., and Cole, J. S., "An ultrasonic pulsed Doppler system for measuring flood flow in small vessels", J. Applied Physiology, vol. 37, No. 4, pp. 626-629 (Oct. 1974).
Benchimol, A., et al., "Aortic flow velocity in man during cardiac arrhythmias measured with the Doppler catheter-flowmeter system", American Heart Journal, vol. 78, No. 5, pp. 649-659 (Nov. 1969).
American Edwards Laboratories Percutaneous Transluminal Angioplasty Catheters, "User's Reference Guide for Peripheral Applications", Brochure, unknown publication date.
Liaw, C. F., and Chen, I. C., "Poling of Multiple PVDF Films by Moving Corona Discharge", Ferroelectrics, vol. 99, pp. 127-132 (1989).
Carlisle, B. N., "Piezoelectric Plastics Promise New Sensors", unknown journal, Penton Publishing, 1986.
Schonhorn, H., and Hansen, R. H., "Surface Treatment of Polymers for Adhesive Bonding", Journal of applied Polymer Science, vol. 11, pp. 1461-1474 (1967).
Benderly, A. A., "Treatment of Teflon to Promote Bondability", Journal of Applied Polymer Science, vol. 6, No. 20, pp. 221-225 (1962).
Joe W. & Dorothy Dorsett Brown Foundation
Shay David M.
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