Patent ID: 8685044
Filing Date: 2014-04-01
Classification: A61B,A61F

Abstract:
1. A tool for applying an implantation force to a helical fastener sized and configured for penetration in tissue comprising: a tool body comprising internal threads; a driven member carried by the tool body and operable to apply the implantation force; a carrier on the driven member configured to couple the fastener to the driven member to transfer the implantation force from the driven member to the fastener, the carrier comprising a distal portion wherein the distal portion remains within the tool body during implantation of the fastener; and wherein the tool is configured to operate in phases including: an initial phase operating the carrier to partially implant the fastener into tissue such that a proximal portion of the fastener remains coupled to the carrier, wherein the proximal portion of the fastener is retained within the internal threads of the tool body at the end of the initial phase; a lull phase interrupting operation of the carrier, wherein the fastener may be removed; and a final phase operating the carrier to release the fastener therefrom and implant the fastener in tissue.