Surgery – Diagnostic testing – Flexible catheter guide
Patent
1997-08-12
1999-11-16
O'Connor, Cary
Surgery
Diagnostic testing
Flexible catheter guide
604 95, 604 96, 604280, 604281, A61B 500
Patent
active
059848782
ABSTRACT:
This is a surgical instrument. It is a guidewire made of a stainless steel alloy core which is coated with a non-hydrophilic lubricious polymer on the majority of its length located proximally and a hydrophilic polymer located at the majority of the remaining distal length of the guidewire. Preferably, the guidewire has a polymeric tie layer located between the metallic core of the guidewire assembly and the hydrophilic polymeric layer. The metallic core is one of a number of stainless steels so to preserve its torque transmitting capabilities. Desirably the outside diameter of the guidewire is constant from the distal end to the proximal end. The metallic core may be tapered at appropriate locations along the guidewire assembly.
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O'Connor Cary
Target Therapeutics Inc.
Wingood Pamela L.
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