Ultrasonic and interventional catheter and method

Patent 5325860 Issued on July 5, 1994. Estimated Expiration Date:

November 8, 2011. 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.

Abstract Claims Description Full Text

Patent References

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Inventors

Assignee

Mayo Foundation for Medical Education and Research

Application

No. 790580 filed on 11/08/1991

US Classes:

600/468, With blood flow measurement or detection600/439With therapeutic device

Examiners

Primary: Jaworski, Francis J.

Attorney, Agent or Firm

Merchant, Gould, Smith, Edell, Welter & Schmidt

International Class

A61B 008/12

Abstract

A catheter having a catheter body with a proximal and distal end. The catheter including an ultrasonic transducer proximate its distal end. An access port being provided in the catheter for delivery of a therapeutic device or the like to proximate the distal end of the catheter body. A guide wire port being further provided for insertion therethrough of a guide wire.

Other References

Masahito Moriuchi et al.: Transvenous Echarcardiography Experimental Feasibility Study. Published on Jpn. Med. Ultrasonic in 1992, vol. 19, No. 3, pp. 229-235. (Exhibit I)
Pandian, N. G. et al., "Intracardiac Echocardiography. Experimental Observations on Intracavitary Imaging of Cardiac Structures with 20-MHz Ultrasound Catheters", Echocardiography, vol. 8: pp. 127-134, Jan. 1991. (Exhibit A)
Seward, J. B. et al., "Transvacular and Intracardiac Two-Dimensional Echocardiography", Echocardiography, vol. 7, Jul. 1990. (Exhibit B)
Schwartz, S. L., (Pandian), et al.: Real-Time Intracardiac Two-Dimensional Echocardiography: An Experimental Study of In Vivo Feasibility, Imaging Planes, and Echocardiographic Anatomy. Echocardiography, 7:4443-455, 1990. (Exhibit C)
Pandian, N. G., et al.: Transvacular and Intracardiac Two-Dimensional High-Frequency Ultrasound Imaging of Pulmonary Artery and Its Branches in Humans and Animals. (Exhibit D)
Copy of a MDDI Reports (Exhibit H), publisher: F-D-C Reports, Inc. dated Mar. 30, 1992, I&W7 (2 pages)
Weintraub A., (Pandian), et al.: Realtime intracardiac Two-Dimensional Echocardiography in the Catheterization Laboratory in Humans. Abstract JACC 15:No. 2: 16A, 1990, (Feb.), is attached. (Exhibit E)
Nishimura, R. A., (Tajik/Mayo), et al.: Intravascular Ultrasound Imaging: In Vitro Validation and Pathologic Correlation, JACC, 16:145-154, 1990. (Exhibit F)
Schwartz, S., (Panadian), et al.: Intracardiac Echocardiographic Guidance and Monitoring During Aoric and Mitral Balloon Valvuloplasty: In Vivo Experimental Studies. Abstract JACC, 5: No. 2: 104A, 1990, (Feb.). (Exhibit G)
Schwartz et al., "Intracardiac Echocardiography in Humans Using a Small-Sized (6F), Low Frequence (12.5 MH) Ultrasound Catheter", JACC, 21:189-198 (1993