SOFT TISSUE CORING DEVICES AND METHODS

摘要

An excisional device may comprise a work element configured to rotate at a first rotation rate and comprising a first and a second articulable beak configured to cut tissue. A first helical element, configured to transport tissue cut by the first and second articulable beaks, may be co-axially disposed relative to the work element and operative to rotate at a second rotation rate that is different than the work element. A proximal sheath may be co-axially disposed relative to the work element and the first helical element, and may be configured to rotate the work element and to actuate the first and second articulable beaks.

主权项

1. An excisional device, comprising:
a distal sheath defining a longitudinal axis; a work element configured to at least partially fit within the distal sheath, the work element comprising first and second articulable beaks configured to rotate within the distal sheath about the longitudinal axis, the first and second articulable beaks defining respective first and second curved distal surfaces configured to cut tissue, a portion of both of the first and second curved surfaces being configured to rotate outside of the distal sheath.