Compound barb medical device and method
AssigneeCovidien LP
InventorsAhmad Robert Hadba, Gerald Hodgkinson, Seth Gleiman, Matthew D. Cohen, Nicholas Maiorino, Timothy D. Kosa, Mark S. Buchter, Michael Primavera
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Abstract
Barbed medical devices include a crown interconnecting a pair of legs and at least one barb extending from each of the legs. The at least one barb may define an inner surface with a first portion disposed at a first orientation relative to a longitudinal axis of the leg, a second portion disposed at a second orientation relative to the longitudinal axis, and optionally, a third portion disposed at a third orientation relative to the longitudinal axis of the leg.
Claims18
A method of forming a compound barb on a staple comprising:
- providing a staple having a pair of legs, each leg defining a longitudinal axis;
- and
- applying vibrational energy to a cutting element to form a compound barb on at least a portion of each leg including:
- forming a first cut in the leg, the first cut having a first ratio of cut depth to diameter of the leg;
- and
- forming a second cut in the leg, the second cut having a second ratio of cut depth to diameter of the leg.
Dependencies are inferred from the claim text.