Surgical staples with plated anvils
AssigneeUnited States Surgical Corporation
InventorsDavid T. Green, Henry Bolanos, Gary S. Kappel, Karl H. Ehrenfels
Life of this patent
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Abstract
The present invention relates to anvils for surgical fastener applicators having a fastener forming surface for forming surgical fasteners, an intermediate surface formed of a metallic alloy disposed on at least a portion of the fastener forming surface and a polytetrafluorethylene coating disposed on the intermediate surface. The polytetrafluorethylene coating is provided to reduce the force necessary to form the fasteners.
Claims17
An anvil for surgical fastener applicators, said anvil comprising a fastener forming support member at least a portion thereof including a surgical fastener forming surface having fastener forming depressions to form at least one surgical fastener driven thereagainst, said surgical fastener forming surface having an intermediate surface portion formed of a hardened material disposed on at least a portion of said fastener forming depressions and an outer surface portion formed of a friction reducing material disposed on said intermediate surface portion of hardened material.
An anvil for a surgical stapler which comprises:
- an anvil plate of monolithic construction having a staple forming surface defined thereby;
- a plurality of staple forming depressions formed on said staple forming surface for forming a plurality of surgical staples;
- an intermediate surface portion formed of a metallic alloy disposed on at least a portion of said staple forming depressions;
- and
- an outer surface portion formed of PTFE disposed at least on said intermediate surface portion.
Dependencies are inferred from the claim text.