Patent ID: 8192425

Claim:
A radiofrequency perforation apparatus for creating a channel at a target location in a body of a patient, said radiofrequency perforation apparatus comprising: a handle; a distal portion, said distal portion defining a distal portion length and a distal tip, said distal tip including an electrode and said distal portion including an electrical insulator extending from said electrode; and a force transmitting portion extending between said distal portion and said handle, said force transmitting portion defining a force transmitting portion length, said force transmitting portion length being larger than said distal portion length, said force transmitting portion having a force transmitting portion flexural rigidity of at least about 0.016 Nm 2 ; whereby said force transmitting portion has a force transmitting portion flexural rigidity allowing the transmission to said handle of contact forces exerted on said distal portion when said distal portion contacts said target location to provide tactile feedback to said intended user.