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US 6,918,882 B2Granted
Guidewire with stiffness blending connection
AssigneeSciMed Life Systems, Inc.
InventorsPeter Skujins, Brian Reynolds, Greg Schultz
Life of this patent
Estimating the term…
Abstract
Alternative designs and materials suitable for connecting different guidewire sections together. More particularly, connecting two portions of a guidewire having different material compositions with a connector having a third composition which is readily weldable to each of the dissimilar portions of the guidewire. A transition area may be designed to provide a region of desired flexibility characteristics.
Claims15
A guidewire, comprising:
- a proximal section having a distal portion, the proximal section comprising a first material, wherein the first material comprises stainless steel;
- a distal section having a proximal portion, the distal section comprising a second material, wherein the second material comprises a nickel-titanium alloy;
- and
- a connector disposed adjacent and welded to the distal portion of the proximal section and the proximal portion of the distal section, the connector comprising a third material different from the first material and the second material, the third material comprising nickel-chromium-molybdenum alloy, C276, or B2 alloy that is compatible for welding to both stainless steel and nickel-titanium alloy.
1 more element
A guidewire, comprising:
- a proximal section having a distal portion, the proximal section comprising stainless steel;
- a distal section having a proximal portion, the distal section comprising a nickel-titanium alloy;
- and
- a connector disposed adjacent and welded to the distal portion of the proximal section and the proximal portion of the distal section, the connector comprising a nickel-chromium-molybdenum alloy.
1 more element
A guidewire, comprising:
- a proximal section comprising stainless steel;
- a distal section comprising nickel-titanium alloy;
- and
- a connector comprising a nickel-chromium-molybdenum alloy which is welded to and connects the proximal and distal sections.
1 more element
Dependencies are inferred from the claim text.