Patent ID: 7981052
Filing Date: 2011-07-19
Classification: A61B

Abstract:
1. A device for collecting body tissue comprising: an inner member comprising a hollow portion to collect body tissue, the inner member having a distal end configured to both penetrate body tissue and define an opening of the hollow portion; and an outer member co-axially and slidably disposed around an exterior of the inner member, the outer member comprising a distal end portion configured to penetrate body tissue, prevent body tissue from exiting the hollow portion of the inner member through the opening of the hollow portion, and allow the distal end of the inner member to extend beyond the distal end portion of the outer member, wherein the opening of the hollow portion of the inner member is disposed in a plane that is not perpendicular to a longitudinal axis of the inner member, wherein a distalmost end of the outer member extends beyond the distalmost end of the inner member, and wherein the distalmost end of the outer member radially extends from one side of the inner member to a position beyond a longitudinal outer surface of a diametrically opposing side of the inner member to cover the entire opening of the hollow portion and close the opening.