Patent ID: 8114110

Claim:
A transseptal needle, comprising: an elongate needle body having a distal end and a proximal end; a cannular needle tip located proximate the distal end of the elongate needle body, the needle tip having a distal segment, a proximal segment, and a longitudinal axis extending through at least a portion of the distal segment and the proximal segment, the needle tip comprising: an inner surface defining a passageway spanning at least a portion of the needle tip; an outer surface, the inner surface and the outer surface defining therebetween a wall; a wedge surface at the distal segment of the needle tip, the wedge surface forming a wedge angle of other than 90 degrees relative to the longitudinal axis of the needle tip; a dome-shaped region at the distal segment of the needle tip; a first bevel in the dome-shaped region; and a second bevel in the dome-shaped region, wherein the first bevel and the second bevel intersect at one or more points on the needle tip, and wherein a puncture tip leading edge is at least partially defined by an intersection of the first bevel, the second bevel, and the wedge surface.