Patent ID: 9358370
Filing Date: 2016-06-07
CPC Classification: A61L,A61M,C23F

Claim Text:
1. A method of manufacturing a guidewire having a plurality of integral radiopaque markers formed therein, the method comprising the steps of: creating channels through an outer layer of an elongated wire to expose an innermost core of the elongated wire, wherein the innermost core is formed from a radiopaque material susceptible to erosion by an erosion agent and the outer layer is formed from a material non susceptible to erosion by the erosion agent; and subjecting the innermost core to the erosion agent via the channels to remove finite segments of the innermost core adjacent to the channels, thereby forming a guidewire having the outer layer which encloses a plurality of integral radiopaque markers with a plurality of voids therebetween, wherein segments of the innermost core that remain after subjection to the erosion agent form the plurality of integral radiopaque markers and the finite segments of the innermost core removed by the erosion agent form the plurality of voids.