Surgical stapling instrument with staples having crown features for increasing formed staple footprint

摘要

A staple having a crown, a deformable leg extending from the crown, and a spring extending from the crown configured to compress tissue between the spring and the deformable member. Owing to the flexibility of the spring, the staple can accommodate a wide range of tissue thicknesses while still compressing the tissue captured therein. As a result, a single staple design can be used in a wide variety of surgical procedures thereby reducing the amount of staple designs that must be provided to the surgeon. In at least one embodiment, the staple includes a crushable member. This crushable member can include a plastically deformable first portion and an elastically deformable second portion. The present invention can also include, in various embodiments, a crown, a first deformable member extending from the crown, and means for compressing the tissue against the first deformable member.

主权项

1. A surgical staple assembly, comprising:
(a) at least one wire defining a pair of staple legs, wherein the at least one wire is comprised of a first material; and (b) a crown secured to the staple legs, wherein the crown extends between the staple legs, wherein the crown is comprised of a second material that is different than the first material, wherein the crown includes staple forming features configured to deform the staple legs in response to the staple legs being driven into the crown; wherein the staple further comprises a single wire defining both of the staple legs and a base extending between the staple legs, wherein the crown comprises a pair of recesses defining the staple forming features operable to deform the staple legs to positions that are laterally offset relative to both the longitudinal axis defined by the crown and the respective staple driving path; wherein the at least one wire and the crown are configured to cooperate to form a surgical staple.