Norman L Williams

Address:

2037 Whitedove Dr, Dallas, TX 75224

VIN:

1C3CC4FB9AN162142

Make:

CHRYSLER

Model:

SEBRING

Year:

2010

US Patent:

57163960, Feb 10, 1998

Filed:

Jun 16, 1995

Appl. No.:

8/491279

Inventors:

Norman F. Williams - Miami FL

Assignee:

Cordis Corporation - Miami Lakes FL

International Classification:

A61F 206

US Classification:

623 1

Abstract:

An endoprosthesis is provided which presents an endoprosthesis body of a helically wound strand of generally malleable material exhibiting a repeating pattern of undulations that follow a generally helically wrapped axis. Adjacent full circle windings each have at least one weld joining together apex-like portions of adjacent full circle windings. In a preferred arrangement, a plurality of these welds define a substantially in-line helical pattern of welds along the endoprosthesis or stent. One, two, three or more of these substantially in-line helical patterns of welds can be provided. Also provided is a method for forming the endoprosthesis which includes fusion welding, typically within an inert gas atmosphere and in a manner such that the entirety of the stent lies along the same generally cylindrical three-dimensional plane. A procedure is included whereby the endoprosthesis or stent is implanted by deployment with a suitable expansion device, the deployment expanding the pattern of undulations in a uniform manner to provide an especially consistent support surface throughout the endoprosthesis.