Endplate punch template and method of use

摘要

An instrument for penetrating an endplate of a vertebra having a first plate including a first endplate engaging surface and a second surface. The first endplate engaging surface and the second surface are oriented so as to face in opposing directions. The first plate has a plurality of extensions projecting from the first endplate engaging surface to form a first extension template. The first extension template includes a centrally disposed extension and at least one extension radially disposed about the centrally disposed extension. The first extension template is configured to penetrate an endplate surface of a first vertebra when advanced into the endplate surface of the first vertebra.

主权项

1. An instrument for penetrating an endplate surface of a vertebra comprising:
a first plate having an endplate engaging surface comprising a plurality of extensions projecting therefrom to form a first extension template, the first extension template including a centrally disposed extension and at least one extension radially disposed about the centrally disposed extension wherein the first extension template is configured to penetrate a first endplate surface of a vertebra when advanced into the first endplate surface of the vertebra; and a second plate having an endplate engaging surface comprising a plurality of extensions projecting therefrom to form a second extension template, the second extension template including a centrally disposed extension and at least one extension radially disposed about the centrally disposed extension wherein the second extension template is configured to penetrate a second endplate surface of the vertebra when advanced into the second endplate surface of the vertebra, wherein at least one of the plurality of extensions projecting from the first and second extension endplates is rotatable relative to the first and second plates in communication with at least one of the plurality of extensions, wherein the rotation of the at least one extension relative to the first and second plates is about a longitudinal axis of the extension which passes along a length of the extension.