United States Patent  [li] Patent Number: 4,969,458
Wiktor  Date of Patent: Nov. 13,1990
 INTRACORONARY STENT AND METHOD OF SIMULTANEOUS ANGIOPLASTY AND STENT IMPLANT
 Inventor: Dominik M. Wiktor, Cranford, N.J.
 Assignee: Medtronic, Inc., Minneapolis, Minn.
 Appl. No.: 69,636
 Filed: Jul. 6,1987
 Int.C1.5 A61M 29/02
 UJS.C1 606/194; 623/13;
 Field of Search 128/334 R, 341-344;
 References Cited
U.S. PATENT DOCUMENTS
3,842,441 10/1974 Kaiser 128/334 R X
4,553,545 11/1985 Maass et al 128/341
4,560,374 12/1985 Hammerslag 128/344 X
4,649,922 3/1987 Wiktor 128/344
4,665,918 5/1987 Garza et al 128/343
4,800,882 1/1989 Gianturco 128/343
FOREIGN PATENT DOCUMENTS
1205743 9/1970 United Kingdom 128/343
Primary Examiner—Dalton L. Truluck
Attorney, Agent, or Firm—Robert J. Klepinski; Joseph
A device to be used as a vascular stent comprising a cylindrical open-ended wire component made of a low memory metal such as copper alloy, titanium, or gold, providing a radial support from within a blood vessel after implantation therein. The coronary stent is characterized by its ability to be expanded radially to a larger diameter after initial implantation and means for causing said stent to expand to a larger diameter and a method for transporting, positioning and implantation of such coronary stent transluminally to have said stent act as a permanent prosthesis to assure vascular patency. And method for simultaneous angipolasty and stent implant procedure.
10 Claims, 2 Drawing Sheets