Patent ID: 7416757

Claim:
A method of applying a polymeric coating to at least one embolic coil, which comprises: passing one end of the embolic coil through an aperture in a spreading member to straighten the coil; attaching said one end of the embolic coil to an upper holder positioned above said spreading member, the embolic coil portion that extends from the upper holder to said aperture being generally vertical and straight; applying to said embolic coil a dispersion of a polymeric coating formulation in a solvent; and passing portions of said embolic coil which are below said spreading member through said spreading member, to cause substantially the entire embolic coil, with said polymeric coating formulation applied, to be vertical and straight; removing the spreading member and the upper holder while in fixed position relative to each other and removing the embolic coil from further contact with said coating formulation; and drying said embolic coil.