The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 27, 2010
Filed:
Sep. 02, 2003
Timothy B. Petrick, Brooklyn Park, MN (US);
Steven N. Willard, Brooklyn Center, MN (US);
Peter T. Keith, St. Paul, MN (US);
Dennis W. Wahr, Minnetonka, MI (US);
Timothy B. Petrick, Brooklyn Park, MN (US);
Steven N. Willard, Brooklyn Center, MN (US);
Peter T. Keith, St. Paul, MN (US);
Dennis W. Wahr, Minnetonka, MI (US);
St. Jude Medical, Cardiology Division, Inc., St. Paul, MN (US);
Abstract
A catheter comprises an elongate tubular member having a proximal end and a distal end, and a deflectable tip at the distal end of the elongate tubular member. The deflectable tip comprises a first helical coil having a first diameter and a second helical coil having a second diameter, the first diameter being larger than the second diameter. The first and second helical coils are arranged in the manner of a double helix. When viewed in cross-section, the first helical coil and the second helical coil are aligned at a first point on a circumference of each coil and misaligned at a second point on the circumference of each coil, where the second point is approximately 180 degrees from the first point. In certain embodiments the catheter further includes a dilatation balloon. Methods of use for crossing a chronic total occlusion are also described.