Guidewire having hydrophilic coating

    公开(公告)号:US5840046A

    公开(公告)日:1998-11-24

    申请号:US665973

    申请日:1996-06-21

    申请人: Mark E. Deem

    发明人: Mark E. Deem

    摘要: A guidewire comprises a core wire having a coil tip at its distal end. The coil tip includes a helically wound filament having adjacent turns spaced apart by a preselected distance. The guidewire is coated with a polymeric material, typically a hydrophilic polysaccharide, such as hyaluronic acid or chondroitin sulfate. By properly selecting the spacing between adjacent turns of the coil tip, the hydrophilic coating will adhere to the coil tip in a manner which does not penetrate the coil and which does not significantly interfere with flexibility and bendability of the coil tip.