Back to results
US 4,534,363 AGranted
Coating for angiographic guidewire
AssigneeCordis Corporation
InventorPhilip Gold
Life of this patent
Estimating the term…
Abstract
There is disclosed an improved coating for an angiographic guidewire and a method of manufacturing the guidewire. The guidewire takes the form of a coiled wire which is coated with copolymers of methylsiloxane and aminoalkylsiloxane units to enhance the lubricity of the guidewire when it is inserted into a catheter.
Claims6
An angiographic guide wire adapted to guide a catheter into the body of a patient;
- said guide wire comprising:
- an elongate wire which has a circular cross-section and which is wound into a coil spring of consecutive adjacent coils;
- a proximal tip fixed ot one end of said coiled wire;
- a distal tip fixed to the other end of said coiled wire;
- a core wire fixed to and between the tips;
- and a thin continuous coating of low friction, slippery material completely encasing and interconnecting said coiled wire and the individual coils thereof, and extending between adjacent coils, said coating consisting essentially of an organosiloxane copolymer.
3 more elements
Dependencies are inferred from the claim text.