Baxter International Inc.

Lauralan T Grisoni

Harold Alexander Heitzmann

Jeffrey S Dove

Sheryl W Higgins

Jim-Son J Chou

Hal Heitzmann

Jeffery S Dove

A catheter combination is described using a percutaneous transluminal transmitter for transmitting energy to a localized area. The combination includes a catheter having a hollow tubular member. A transmitter combination for partial insertion into the catheter includes a continuous central conductor terminating in a tip for receiving and transmitting a signal to the tip. A dielectric material surrounds at least a significant portion of the central conductor, and a continuous coaxial conductor surrounds the dielectric material for receiving and transmitting a signal to a point adjacent the tip to form an antenna for transmitting energy to tissue when the transmitter is placed into biologic tissue. A coating around the coaxial conductor covers the coaxial conductor. A signal generator is coupled to the central conductor and the coaxial conductor for applying a signal between the central and coaxial conductors to transmit energy from the tip of the central conductor.

Percutaneous transluminal catheter and transmitter therefor

An apparatus for determining fluid pressure and inflation diameter in the balloon of a dilation catheter includes a pressure sensing transducer in fluid communication with the interior of the catheter balloon. The transducer provides a balloon pressure signal which is processed by a microcomputer to determine a balloon diameter or circumference as a function of the balloon pressure. The microcomputer produces a signal representing the balloon diameter or circumference. A digital display responds to the pressure signal and diameter signal to display both balloon pressure and diameter in order to provide an added degree of safety and control to a vascular physician conducting balloon angioplasty or similar procedures.

Balloon catheter inflation pressure and diameter display apparatus and

Growing community of inventors

Aliso Viejo, CA, United States of America

Lauralan T Grisoni