EEA anvil snap ring activator

摘要

A surgical fastening apparatus and associated method of use is disclosed. The surgical fastening apparatus includes a handle assembly, a central body portion extending from the handle assembly, and a distal head portion including an anvil head assembly. The anvil head assembly includes an anvil head defining an interior recess, an activator plate, a deformable member, and a securing member. The anvil center rod assembly defines a longitudinal axis and is pivotably connected to the anvil head assembly about a pivot axis. The anvil center rod assembly includes a configured to contact the anvil head assembly upon an actuation of the surgical fastening apparatus. Upon the actuation of the surgical fastening apparatus, the deformable member is configured to deform such that the activator plate is advanced distally into the interior recess to facilitate the anvil head pivoting about the pivot axis.

主权项

1. A surgical fastening apparatus, comprising:
a handle assembly; a central body portion extending from the handle assembly; and a distal head portion including a shell assembly and an anvil assembly, the anvil assembly including:
an anvil head assembly including an anvil head defining an interior recess supporting an activator plate, a deformable member positioned distally of the activator plate, and a securing member positioned proximally of the activator plate, the anvil head having a post extending proximally therefrom; andan anvil center rod assembly defining a longitudinal axis, the anvil head being pivotably connected to the anvil center rod assembly about a pivot axis, the anvil center rod assembly including a plunger in mechanical communication with the anvil head, the plunger configured to contact the anvil head assembly upon actuation of the handle assembly to cause pivoting of the anvil head about the pivot axis; wherein, upon actuation of the handle assembly, the deformable member is configured to deform such that the activator plate is advanced distally into the interior recess to a distal position disengaged from the anvil head to permit the anvil head to pivot about the pivot axis in response to movement of the plunger while the securing member is moved distally to securely engage the post extending from the anvil head to maintain the activator plate in the distal position.