Siliconized surgical needles and methods for their manufacture
AssigneeTyco Healthcare Group LP
InventorsMark S. Roby, John J. Kennedy, Nicholas Maiorino, Alan Cabezas
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Abstract
A siliconized surgical needle is provided which requires significantly less force to effect tissue penetration than a standard siliconized needle.
Claims29
A method for manufacturing a siliconized surgical needle comprising the steps of:
- providing a surgical needle having a surface;
- applying a coating mixture on the surface of the needle, the coating mixture comprising at least one polydialkylsiloxane having a molecular weight sufficient to provide a viscosity of the coating mixture of at least about 10,000 cp and at least one other siliconization material;
- and,
- curing the coating mixture on the surface of the needle to provide a silicone coating thereon.
A method for manufacturing a siliconized surgical needle comprising the steps of:
- providing a surgical needle having a surface;
- applying a coating mixture on the surface of the needle, the coating mixture comprising at least one polydialkylsiloxane and at least one other siliconization material which does not covalently bond with the polydialkylsiloxane;
- and,
- subjecting the coating mixture on the surface of the needle to curing conditions such that the siliconization material cross-links thereby interlocking the polydialkylsiloxane in the coating to provide an interpenetrating networked coating.
A surgical needle having a coating thereon, the coating formed from a coating mixture comprising at least one polydialkylsiloxane having a molecular weight sufficient to provide a viscosity of the coating mixture of at least about 10,000 cp and at least one siliconization material.
A surgical needle having an interpenetrating networked coating thereon, the coating formed from a coating mixture comprising at least one polydialkylsiloxane and at least one other siliconization material which does not covalently bond with the polydialkylsiloxane.
Dependencies are inferred from the claim text.