Patent ID: 7993286
Filing Date: 2011-08-09
Classification: A61L,A61M

Abstract:
1. A guidewire comprising: an elongate core including a distal portion and a proximal portion, the distal portion comprising a linear elastic nickel-titanium alloy and the proximal portion comprising a metallic material different from the linear elastic nickel-titanium alloy; wherein the linear elastic nickel-titanium alloy includes linear elastic nitinol; wherein the distal portion and the proximal portion are attached together by a connector; wherein the distal portion extends distally from the connector; a super elastic nickel-titanium alloy section connected to the distal portion and extending distally beyond the distal portion, wherein the distal portion includes a distal end, and the super elastic nickel-titanium alloy section comprises a separate member attached to the distal end of the distal portion, wherein the super elastic nickel-titanium alloy section includes super elastic nitinol; and a polymer sheath disposed over the distal portion and the super elastic nickel-titanium alloy section, the polymer sheath forming a polymer tip.