1
Peter Stasz: Ultrasonically enhanced RF ablation catheter. Everest Medical Corporation, Haugen and Nikolai, June 26, 1990: US04936281 (580 worldwide citation)

An electrosurgical angioplasty catheter with ultrasonic enhancement is described. It comprises an elongated, flexible plastic tubular body having located at its distal tip an electrode structure for effecting rf cutting along with a transducer for ultrasonically driving the rf cutting electrodes and ...


2
Frank I Marcus, Kullervo H Hynynen: Apparatus and method for intra-cardiac ablation of arrhythmias. Arizona Board of Regents for and on Behalf of the University of Arizona, Rosenbaum & Associates, March 22, 1994: US05295484 (548 worldwide citation)

The present invention employs ultrasonic energy delivered to myocardial tissue at frequencies sufficient to destroy the myocardial tissue implicated in the arrhythmic. More specifically, the present invention comprises an ultrasonic transducer mounted on a distal end of a catheter and at least one e ...


3
Preston E Blair, Frank S Preston: TV animation interactively controlled by the viewer. September 22, 1987: US04695953 (497 worldwide citation)

The motion picture branching method is superseded by an animation method which enables rapid and repeated switching of multiple tracks of different camera-originated animation of the same character during continuous action in a scene, and enables branching at the termination of an action to multiple ...


4
Paul G Yock: Catheter apparatus, system and method for intravascular two-dimensional ultrasonography. Cardiovascular Imaging Systems, Flehr Hohbach Test Albritton & Herbert, January 3, 1989: US04794931 (492 worldwide citation)

Ultrasonic apparatus, system and method for high resolution intravascular imaging to assist indovascular lesions and to monitor the results of interventional therapy. An ultrasonic transducer is carried by the distal end of a catheter adapted for insertion into a vessel, and either the transducer or ...


5
David G Wuchinich, Robert Brendolan, Louis Katz, Donald R Krawitt: Endoscopic ultrasonic aspirators. Sonomed Technology, Pennie & Edmonds, June 14, 1988: US04750902 (415 worldwide citation)

A method and apparatus for endoscopic removal of compliant biological tissues utilizing an endoscopic ultrasonic aspirator comprising irrigation and aspiration means, a piezoelectric ultrasonic transducer, a first resonator such as a half-wave stepped velocity transformer, a probe including a second ...


6
Lev M Lipkovker: Ultrasonic transdermal system for withdrawing fluid from an organism and determining the concentration of a substance in the fluid. Endodermic Medical Technologies Company, Christensen O Connor Johnson & Kindness PLLC, April 8, 1997: US05617851 (395 worldwide citation)

A noninvasive method and apparatus for withdrawing fluid from an organism and determining the concentration of a substance in the fluid is disclosed. The noninvasive apparatus comprises a substance concentration sensor (120) that includes an extraction transducer (126) and a substance sensing transd ...


7
Kouji Fujio, Isami Hirao, Sakae Takehana, Yasuhiro Ueda, Takashi Tsukaya, Yoshinao Oaki, Seiji Kuramoto: Ultrasonic diagnosis and therapy system in which focusing point of therapeutic ultrasonic wave is locked at predetermined position within observation ultrasonic scanning range. Olympus Optical, Armstrong Westerman Hattori McLeland & Naughton, December 5, 1995: US05471988 (383 worldwide citation)

Provided on the side of a distal end of an insertion part are an observation ultrasonic transducer for acquiring an ultrasonic image and a therapeutic ultrasonic transducer for outputting a therapeutic ultrasonic wave so as to be focused. Positioning or the like between the observation ultrasonic tr ...


8
Paul G Yock: Method for intravascular two-dimensional ultrasonography and recanalization. Cardiovascular Imaging Systems, Townsend and Townsend, March 19, 1991: US05000185 (378 worldwide citation)

Ultrasonic apparatus, system and method for high resolution intravascular imaging to assist indovascular lesions and to monitor the results of interventional therapy. An ultrasonic transducer is carried by the distal end of a catheter adapted for insertion into a vessel, and either the transducer or ...


9
George W Keilman, George E Cimochowski: Implantable therapeutic device and method. VascuSense, Brian L Johnson, George C Rondeau Jr, Davis Wright Tremaine, July 1, 2003: US06585763 (361 worldwide citation)

A system includes a first coil, a signal source and a first control module. The first control module regulates coupling between the signal source and the first coil. The system also includes an implantable device having a second coil coupled to a therapeutic transducer comprising an ultrasonic trans ...


10
Todd Fjield, Edward Paul Harhen, David E Acker, Patrick David Lopath: Thermal treatment methods and apparatus with focused energy application. Transurgical, Lerner David Littenberg Krumholz & Mentlik, October 21, 2003: US06635054 (340 worldwide citation)

A collapsible ultrasonic reflector incorporates a gas-filled reflector balloon, a liquid-filled structural balloon an ultrasonic transducer disposed within the structural balloon. Acoustic energy emitted by the transducer is reflected by a highly reflective interface between the balloons. In a cardi ...