Patent ID: 9084643
Filing Date: 2015-07-21
Classification: A61B

Abstract:
1. A device for treating fractures, comprising: an intramedullary member sized and shaped for insertion along a longitudinal axis of a bone within a medullary canal thereof, the intramedullary member including an opening extending obliquely therethrough, the opening, when the intramedullary member is in a desired position within a bone, aligning with a desired axis along which an implant is to be inserted into a bone, the intramedullary member including a channel formed therewithin, the channel extending along a longitudinal axis of the nail and open to the opening; an implant sized to be slidably received through the opening and inserted along the desired axis, the implant including an implant abutting structure; and a locking mechanism mounted in the channel including a locking mechanism abutting structure extending into the opening aligned to engage the implant abutting structure permitting lateral movement of the implant relative to the intramedullary member while preventing medial movement of the implant relative to the intramedullary member, wherein the locking mechanism abutting structure is formed as a pawl which moves relative to the intramedullary nail along the longitudinal axis between a first configuration in which the pawl disengages from the implant abutting structure and a second configuration in which the pawl engages the implant abutting structure to prevent medial movement of the implant, wherein the locking mechanism includes a biasing member biasing the pawl toward the second configuration, and wherein the implant further includes a longitudinal groove along a portion of a length thereof, the longitudinal groove being positioned to align with a projection of the locking mechanism when the implant is in a locked configuration wherein, when the implant is in an insertion orientation, contact between the projection and the implant moves the pawl to the first configuration.