Patent ID: 7762960

Claim:
A device for obtaining a tissue sample, comprising: a proximal actuator; a distal assembly having first and second jaws, wherein the first jaw includes an inner surface including a plurality of curved surfaces each extending from an edge of the first jaw to a tip of a pyramid-shaped spike, each curved surface defining a distinct cavity recessed below a base of the pyramid-shaped spike, each distinct cavity curving down below the base of the pyramid-shaped spike and curving back up to the edge of the first jaw for providing increased retention of the tissue sample, wherein the second jaw defines a hole, the tip of the pyramid-shaped spike pointing towards the hole when the first jaw and the second jaw are in a closed position, and wherein, in the closed position, the edge of the first jaw mates with an edge of the second jaw, and the tip is aligned directly opposite the hole and does not enter the hole; and an elongate member connecting the proximal actuator to the distal assembly, wherein actuation of the proximal actuator causes the first and second jaws to pivot relative to one another.