Surgical staples with plated anvils
First Claim
1. 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.
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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.
1854 Citations
17 Claims
- 1. 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.
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12. An anvil for a surgical stapler which comprises:
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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. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification