Donald M Rowe

US Patent:

48906239, Jan 2, 1990

Filed:

Mar 14, 1988

Appl. No.:

7/167878

Inventors:

William Cook - Billerica MA
Jack Herman - Andover MA
Donald Rowe - Lowell MA
John Sylvanowicz - Andover MA

Assignee:

C. R. Bard, Inc. - Murray Hill NJ

International Classification:

A61B 504

US Classification:

128642

Abstract:

A printed circuit biopotential sensing device is provided which is particularly adapted for endocardial or other deep body applications. The device has a predetermined printed circuit pattern formed on a thin film substrate, the pattern having at least one electrode pad at its distal end, at least one terminal pad at the proximal end, and conductor means selectively interconnecting the electrode pads and terminal pads. The substrate is secured to, and is preferably wrapped around an elongated member which is preferably tube-shaped in a manner such that the electrodes are exposed at the distal end of the member, and the terminal pads at the proximal end of the substrate are utilized in forming a suitable connector from the device. By forming the conductors on only a selected fraction of the width of the substrate and overlapping the portion of the substrate containing the conductors during the helical wrapping process, the substrate insulates and protects the conductors and eliminates the need for a separate protective layer. The device may, for example, be a percutaneous catheter with the electrodes being formed at the distal end thereof, or may be a sensing probe which includes a sensing support member, such as a solid plastic member or a balloon which has the distal end of the substrate containing the electrode pads secured thereto.

US Patent:

55406793, Jul 30, 1996

Filed:

Jul 1, 1994

Appl. No.:

8/270060

Inventors:

Daniel B. Fram - West Hartford CT
Ellison Berns - West Hartford CT
Susan M. Ropiak - Hanscom Air Force Base MA
Donald S. Rowe - Belmont MA

Assignee:

Boston Scientific Corporation - Watertown MA

International Classification:

A61B 504

US Classification:

606 27

Abstract:

A balloon catheter is provided that includes a catheter shaft constructed for insertion into a blood vessel, a balloon mounted on the catheter shaft, and a heating device located within the balloon and arranged for heating fluid inside the balloon to permit heating of tissue by thermal conduction from the fluid to the tissue through a wall of the balloon. The balloon catheter is inserted into a blood vessel and the balloon is passed through the right atrium of the heart and into the coronary sinus of the heart. The balloon is inflated with the fluid, and the fluid is heated inside the balloon through use of the heating device, to cause heat to pass from the fluid to surrounding tissue by thermal conduction through the wall of the balloon.