Patent ID: 7983765

Claim:
A sensor lead comprising: a lead body having a distal end comprising an end cap, a flexible outer wall proximal the end cap, and an inner core partially within the flexible outer wall and separated there from by an enclosed interior space defined by the end cap, the outer wall and the inner core, the inner core having an extended section positioned distal the end cap; a sensor, at least a portion of which extends from the extended section of the inner core; and a set of tines extending from the extended section of the inner core; wherein the flexible outer wall is configured to transition from a natural position to a compressed position in response to axial force applied to the end cap, wherein the flexible outer wall has a first diameter when it is in its natural position and second diameter that is greater than the first diameter, when it is in its compressed position; and the inner core is slideable relative to the end cap of the lead body such that the end cap of the lead body is axially displaced from the tip of the inner core in response to axial force applied to the end cap.