Patent ID: 8500654

Claim:
A biopsy needle for collecting a tissue specimen comprising: a housing; an outer cannula that is at least partially received within the housing; an inner tube received within the outer cannula and is configured to receive a stylet; and a snare coil being formed as part of the inner tube and being coupled to the outer cannula; wherein the needle has a first actuation stage and a second actuation stage that is automatically activated as a result of activation of the first actuation stage, wherein during the first actuation stage, a first mechanism contained at least partially within the housing is actuated to longitudinally and axially advance, in an automatic manner, both the outer cannula and the inner tube as well as causing the outer cannula and the inner tube to simultaneously rotate in unison as the two are longitudinally advanced, and wherein in the second stage, a second mechanism contained at least partially within the housing is actuated, as a result of and after the outer cannula and inner tube travel a first longitudinal distance in the first stage, to cause rotation of the inner tube relative to the outer cannula thereby causing activation of the snare coil.