Arrow International Investment Corp.

Microwave Medical Systems, Inc.

Timothy J Lenihan

Kevin Norman Taylor

Philip F Latzgo

Kenneth L Carr

Mark Guetersloh

A kink-resistant steerable catheter assembly suitable for microwave ablation includes a handle, a catheter and a steering control. The catheter has (a) a flexible, torque-transmitting and axially incompressible proximal or body portion terminating in a proximal end attached to the handle, and (b) a flexible and axially compressible distal or tip portion terminating in a distal end. A coaxial cable is disposed in and extends through a large aperture in the catheter proximal portion, and a coaxial cable extension is generally centrally disposed in, substantially fills, and snugly extends through a large lumen in the catheter distal portion to reduce kinking. The control is disposed in and actuatable from the handle, for placing tension on one of a pair of steering wires while relaxing tension on the other of the pair of steering wires, thereby to bend the distal end of the coaxial cable extension toward the tensed one of the steering wires.

Kink-resistant steerable catheter assembly for microwave ablation

A helical antenna, which is matched to the desired microwave frequency of 915 MHz, comprises a helix having a linear length which is in the range of 74 to 112 mm or a non-zero integer multiple thereof, and which delivers microwave energy in an optimal heating pattern with little reflected power.

Microwave antenna catheter

Kink-resistant steerable catheter assembly

Growing community of inventors

Reading, PA, United States of America

Timothy J Lenihan