| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that during certain procedures, it can be difficult to assess the extent to which the microwave energy radiates into the surrounding tissue, making it difficult to determine the area or volume of surrounding tissue to be ablated. <P>SOLUTION: A device for directing energy to tissue includes a feedline 110 and a radiating portion 12 electrically coupled to the feedline. The radiating portion includes a distal radiating section and a proximal radiating section. The feedline includes an inner conductor, an outer conductor and a first dielectric material disposed therebetween. The device also includes a choke disposed around at least a portion of the feedline. The choke includes: a second dielectric material disposed around at least a portion of the outer conductor, wherein the second dielectric material includes at least one opening defined therein, and an electrically-conductive member disposed in the at least one opening electrically coupled to the outer conductor, wherein the electrically-conductive member is configured to contact tissue. <P>COPYRIGHT: (C)2011,JPO&INPIT |
