Patent ID: 9095325
Filing Date: 2015-08-04
Classification: A61B

Abstract:
1. A tissue cutting member for separating a tissue specimen from a target site within a patient's body comprising: a. a tubular portion having an inclined distal tip having a beveled front face with a leading outer tissue cutting edge and a trailing edge, an inner tissue receiving aperture, a longitudinal axis and an inner lumen having an outwardly flared distal tubular portion, said outwardly flared distal tubular portion being outwardly flared in a distal direction to the leading outer tissue cutting edge; b. a single longitudinally oriented opening in the outwardly flared distal tubular portion that has an open distal end which opens to the inner tissue receiving aperture and that extends from a closed proximal end to the open distal end, the closed proximal end having a relief opening with a transverse dimension larger than a transverse dimension of the single longitudinally oriented opening adjacent the relief opening, the single longitudinally oriented opening diverging from the closed proximal end to intersect the trailing edge of the beveled front face of the distal tip of the distal tubular portion and configured to facilitate formation of the outwardly flared distal tubular portion; and c. a second opening at least in part in a wall of the outwardly flared distal tubular portion which is circumferentially spaced from the single longitudinally oriented opening about the longitudinal axis, which has closed proximal and distal ends and which is spaced proximally from the leading outer tissue cutting edge.