Patent ID: 8967077
Filing Date: 2015-03-03
Classification: A61L,C08F,C08J,C08L,C09D

Abstract:
1. A grafting station for grafting a coating polymer onto a surface of a wet photoinitiator-coated device, said station comprising; i) a grafting tank, for submerging said device into a polymerizable solution; ii) a diffuser coupled to a gas feed, disposed within said grafting tank for bubbling an oxygen-scavenging gas from said gas feed into said polymerizable solution; iii) a UV light source, positioned to expose said device to UV light for activating the photoinitiator on said device; and iv) a rail for supporting and submerging said device into said polymerizable solution, wherein said rail comprises a mandrel for removably attaching said device to said rail, and wherein said rail and mandrel are hollow, defining a contiguous bore ending at an aperture in said mandrel, through which said oxygen-scavenging gas flows from said rail, into said mandrel, and into said polymerizable solution; wherein said grafting is effected by submerging said device in said solution while bubbling said gas therethrough and exposing said device to said UV light source.