Stent and catheter assembly and method for treating bifurcations

(12) United States Patent

Wilson et al.

US006264682B1

(io) Patent No.: US 6,264,682 Bl (45) Date of Patent: Jul. 24,2001

(54) STENT AND CATHETER ASSEMBLY AND METHOD FOR TREATING BIFURCATIONS

(75) Inventors: W. Stan Wilson, Missoula, MT (US);

Kevin M. Mauch, San Jose, CA (US)

(73) Assignee: Advanced Cardiovascular Systems, Inc., Santa Clara, CA (US)

( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days.

(21) Appl. No.: 09/412,113

(22) Filed: Oct. 5, 1999

Related U.S. Application Data

(63) Continuation of application No. 08/910,857, filed on Aug. 13, 1997, now Pat. No. 6,165,195.

(51) Int. CI. A61F 2/06

(52) U.S. CI 623/1.11; 623/1.35

(58) Field of Search 606/194, 192,

606/191, 198, 195, 108; 604/96.1, 101.01, 101.02, 101.03; 623/1.11, 1.35

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Primary Examiner—Gary Jackson
Assistant Examiner—Kevin Truong

(74) Attorney, Agent, or Firm—Fulwider Patton Lee & Utecht, LLP

An apparatus and method is provided for stenting bifurcated vessels. Aproximal angled stent is configured for implanting in a side-branch vessel wherein the proximal angled stent has an angulated portion that corresponds to the angle formed by the intersection of the side-branch vessel and the main vessel so that all portions of the side-branch vessel at the bifurcation are covered by the proximal angled stent. A main-vessel stent is provided for implanting in the main vessel, wherein the main-vessel stent has an aperture or stent cell that aligns with the opening to the side-branch vessel to permit unobstructed blood flow between the main vessel and the side-branch vessel. Side-branch and main-vessel catheter assemblies are advanced over a pair of guide wires for delivering, appropriately orienting, and implanting the proximal angled stent and the apertured stent.

4 Claims, 39 Drawing Sheets

Page 2

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