Medical Treatment Devices Having Adjustable Length and/or Diameter

摘要

The present embodiments enable the length and/or diameter of the heating segment of a medical treatment device to be adjusted on the fly during a treatment procedure, without a need to interrupt the procedure, thus allowing a single catheter to be used at different locations in a hollow anatomical structure.

主权项

1. A tissue treatment device, comprising:
an elongate shaft having a distal end; a heating element disposed at the distal end of the shaft, the heating element having a proximal end and a distal end; a first electrical pathway configured to extend between a power source, the proximal end of the heating element, and the distal end of the heating element, and defining a first treatment length extending between the proximal and distal ends of the heating element; and a second electrical pathway configured to extend between the power source, the distal end of the heating element, and an intermediate point along the heating element intermediate the proximal and distal ends thereof, and defining a second treatment length extending between the intermediate point and the distal end of the heating element.