Fixation assembly

摘要

A fixation assembly having a driver, a holding sleeve, and an alignment mechanism is disclosed. The driver may include a driver body and a coupling extending from a distal end of the driver body. The holding sleeve may have a holding sleeve body, a channel extending through the holding sleeve body, and a fixation element coupler disposed at a distal portion of the holding sleeve body. The channel may be configured to receive the driver, and the fixation element coupler may be configured to temporarily hold a fixation element. The alignment mechanism may extend from the holding sleeve, and may have at least one alignment member configured to engage an underlying structure to which the fixation element is to be affixed so as to align the fixation element and driver assembly with respect to the underlying structure.

主权项

1. An assembly for providing fixation to an implant having a threaded bore, comprising:
a fixation element comprising a head with an external first thread and a shaft with a second thread configured to mate with the threaded bore of the implant; and a driver configured to drive the fixation element into the threaded bore of the implant; a holding sleeve comprising an internal channel configured to receive the driver, the holding sleeve further comprising a fixation element coupler configured to temporarily hold the fixation element, the fixation element coupler comprising an internal thread located at a distal end of the holding sleeve that mates with the first thread of the head of the fixation element; wherein at least one of the driver and the fixation element coupler is translatable relative to the other; and an alignment mechanism having at least one alignment member configured to mate with an alignment feature of the implant to align the fixation element with the threaded bore of the implant.