Needles Including Coatings and Methods of Forming

A medical device, comprising:

• a needle, including:
• a metal cannula including an interior surface and an exterior surface, and
• a coating disposed on at least one of the interior surface and the exterior surface, wherein
• the coating is formed from a composition including a head group and a tail,
• wherein the head group includes at least one of a thiol, a sulfide, a disulfide, a phosphonic acid, and a silane exhibiting the formula (—SiX3), wherein X is at least one of a hydroxyl (—OH), an alkoxyl including in the range of 1 carbon to 6 carbons, and a halogen selected from at least one of chlorine, bromine, and iodine, and
• wherein the tail includes at least one of an alkyl including in the range of 4 carbons to 18 carbons, a cyclic group including 6 carbons, a polycyclic group including 10 carbons, and a fluoroalkyl including in the range of 4 carbons to 18 carbons.

A method of coating a needle, comprising:

• mixing a composition with a first medium to form a mixture, wherein the composition includes a head group and a tail and the head group includes at least one of a thiol, a sulfide, a disulfide, a phosphonic acid, and a silane exhibiting the formula (—SiX3), wherein X is at least one of a hydroxyl (—OH), an alkoxyl including in the range of 1 carbon to 6 carbons, and a halogen selected from at least one of chlorine, bromine, and iodine, and the tail includes at least one of an alkyl including in the range of 4 carbons to 18 carbons, a cyclic group including 6 carbons, a polycyclic group including 10 carbons, and a fluoroalkyl including in the range of 4 carbons to 18 carbons;
• immersing a needle including a metal cannula in the mixture, wherein the metal cannula includes an interior surface and an exterior surface;
• and
• forming a coating on at least one of the interior surface and the exterior surface of the metal cannula.