U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Ultrasonic angioplasty device incorporating improved transmission member and ablation probe

Patent 5304115 Issued on April 19, 1994. Estimated Expiration Date: Icon_subject April 19, 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.

Patent References

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Inventors

Assignee

Application

No. 640190 filed on 01/11/1991

US Classes:

604/22, With means for cutting, scarifying, or vibrating (e.g., ultrasonic, etc.) tissue606/169Cutter having vibratory drive means

Examiners

Primary: Rosenbaum, C. Fred
Assistant: Rafa, Michael

Attorney, Agent or Firm

Foreign Patent References

  • 189329 EP. 07/25/1986
  • 208175 EP. 01/25/1987
  • 234951 EP. 02/25/1987
  • 0316796 EP. 11/25/1988
  • 293472 EP 12/25/1988
  • 316796 EP. 05/25/1989
  • 347098 EP. 06/25/1989
  • 443256 EP. 12/25/1990
  • 472368 EP. 02/25/1992
  • 2438648 DE. 08/25/1974
  • 2349120 DE. 04/25/1975
  • 3707567 DE. 09/25/1987
  • 3707921 DE. 09/25/1987
  • 3812836 DE. 04/25/1988
  • 3826414 DE. 02/25/1989
  • 2424733 FR. 01/25/1980
  • 264193 FR. 07/25/1990
  • 2643272 FR. 08/25/1990
  • 9001300 WO. 02/25/1990
  • WO 87/01276 WO. 03/25/1987
  • 8705793 WO. 10/25/1987
  • WO 89/05123 WO. 06/25/1989
  • 8906515 WO. 07/25/1989
  • WO 89/07419 WO. 08/25/1989
  • WO 90/07303 WO. 07/25/1990
  • WO 91/02489 WO. 03/25/1991
  • WO 91/14401 WO. 10/25/1991

International Class

A61B 017/70

Abstract

An ultrasonic angioplasty device comprising an elongate ultrasound transmission member having a proximal end attachable to an ultrasound generating device and a bulbous distal head or probe formed on the distal end thereof for effecting ablative treatment of an occluding lesion. The ultrasound transmission member may be formed of one or more superelastic metal alloys such as NiTi (50 at. % Ni). A guidewire lumen may be formed in the distal head or probe to permit passage of a guidewire therethrough. Portions of the ultrasound transmission member may be curved or bent. Portions of the ultrasound transmission member may be tapered or narrowed. One or more surface disruptions may be formed on the distal head or probe to improve treatment efficacy. An increased hardness coating or outer skin may be formed on the ultrasound transmission member. The device of the present invention may be incorporated into an angioscopic device.

Other References

  • Doc. No. 2208138, Mar. 1, 1989, Abstract
  • Doc. No. 2453058, May 20, 1976, Abstract
  • Doc. No. 2703486, Dec. 1, 1977, Abstract
  • Doc. No. 2541919, Mar. 24, 1977, Abstract
  • Doc. No. 8119209, Sep. 17, 1981, Abstract
  • Doc. No. 1531659, Jul. 21, 1977, Abstract
  • Doc. No. 2212267, Jul. 19, 1989, Abstract
  • Doc. No. 315290, Oct. 23, 1987, Abstrac
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