Method of attaching radiopaque markers to intraluminal medical devices, and devices formed using the same
First Claim
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1. A method of attaching radiopaque markers to an intraluminal medical device frame formed of a superelastic alloy, the method including the steps of:
- providing an intraluminal medical device frame, the frame having first and second open ends, the frame comprising at least one cavity, the cavity defined by the frame, the at least one cavity for receiving a marker element;
providing at least one marker element in said at least one cavity; and
swaging said at least one marker element into said at least one cavity by applying a first force greater than about 90 pounds to said frame defining the at least one cavity and to the at least one marker element;
applying a second force less than about 75 pounds to said marker element; and
thermally conditioning said frame at said marker element at a temperature that is greater than about 200°
C.
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Abstract
A method of attaching radiopaque markers to an intraluminal medical device frame formed from a shape memory metal or alloy thereof, the process conducted during the shape recovery process of said shape memory metal or alloy thereof.
57 Citations
20 Claims
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1. A method of attaching radiopaque markers to an intraluminal medical device frame formed of a superelastic alloy, the method including the steps of:
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providing an intraluminal medical device frame, the frame having first and second open ends, the frame comprising at least one cavity, the cavity defined by the frame, the at least one cavity for receiving a marker element; providing at least one marker element in said at least one cavity; and swaging said at least one marker element into said at least one cavity by applying a first force greater than about 90 pounds to said frame defining the at least one cavity and to the at least one marker element; applying a second force less than about 75 pounds to said marker element; and thermally conditioning said frame at said marker element at a temperature that is greater than about 200°
C. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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- 15. A method of providing an intraluminal medical device with radiopacity, the intraluminal medical device comprising a frame having first and second open ends, the method comprising the step of inserting at least one radiopaque marker element into at least one housing, the at least one housing defined by said frame of said intraluminal medical device, applying a first force greater than about 90 pounds to the housing and the radiopaque marker element, the force induces expansion of the housing into a stress induced martensite condition, the frame formed from a shape memory metal or alloy thereof, said inserting step conducted before a shape recovery process of said shape memory metal or alloy thereof, applying a second force less than about 75 pounds to said radiopaque marker element and thermally conditioning said housing and said marker element at a temperature greater than 200°
Specification