Eric M Lang

US Patent:

7182779, Feb 27, 2007

Filed:

Jul 2, 2004

Appl. No.:

10/884616

Inventors:

Pablo Acosta - Newark CA, US
Bernard Andreas - Redwood City CA, US
Stephen Kao - Sunnyvale CA, US
Joe Karratt - Millbrae CA, US
Steve Landreville - Mountain View CA, US
Eric Lang - Foster City CA, US
David Sanderson - Burlingame CA, US
Craig Welk - Tracy CA, US
David Snow - Menlo Park CA, US

Assignee:

Xtent, Inc. - Menlo Park CA

International Classification:

A61F 2/06

US Classification:

623 111

Abstract:

Apparatus for delivering stents to body lumens include a flexible catheter shaft, an expandable member, a tubular prosthesis selectively movable in an axial direction over the expandable member, and a stop member disposed on the catheter shaft near the distal end of the catheter shaft for stopping the prosthesis at a deployment position on the expandable member. A variety of different stop members are provided according to various embodiments, such as stop members disposed outside the expandable member, stop members disposed inside the expandable member, movable stop members, and the like. Methods of delivering stents are also provided.

US Patent:

8083788, Dec 27, 2011

Filed:

Nov 28, 2006

Appl. No.:

11/563793

Inventors:

Pablo Acosta - Newark CA, US
Bernard Andreas - Redwood City CA, US
Stephen Kao - Sunnyvale CA, US
Joe Karratt - Millbrae CA, US
Steve Landreville - Mountain View CA, US
Eric Lang - Foster City CA, US
David Sanderson - Burlingame CA, US
Craig Welk - Tracy CA, US
David W. Snow - Menlo Park CA, US

Assignee:

Xtent, Inc. - Menlo Park CA

International Classification:

A61F 2/06

US Classification:

623 111

Abstract:

Apparatus for delivering stents to body lumens include a flexible catheter shaft, an expandable member, a tubular prosthesis selectively movable in an axial direction over the expandable member, and a stop member disposed on the catheter shaft near the distal end of the catheter shaft for stopping the prosthesis at a deployment position on the expandable member. A variety of different stop members are provided according to various embodiments, such as stop members disposed outside the expandable member, stop members disposed inside the expandable member, movable stop members, and the like. Methods of delivering stents are also provided.

US Patent:

20070281117, Dec 6, 2007

Filed:

Jun 1, 2007

Appl. No.:

11/757093

Inventors:

Stephen Kaplan - San Carlos CA, US
Patrick Ruane - Redwood City CA, US
Eric Lang - Foster City CA, US
Torsten Kimura - Belmont CA, US

Assignee:

Xtent, Inc. - Menlo Park CA

International Classification:

A61L 33/00
B32B 1/08
B32B 27/08
A61F 2/06

US Classification:

428035700, 427002100, 427002240, 427002250, 623001100

Abstract:

Metallic stents are treated with a gaseous species in a plasma state under conditions causing the species to polymerize and to be deposited in polymerized form on the metallic stent surface prior to the application of a drug-polymer mixture, which is done by conventional non-plasma deposition methods. The drug-polymer mixture once applied forms a coating on the stent surface that releases the drug in a time-release manner and gradually erodes, leaving only the underlying plasma-deposited polymer. In certain cases, the plasma-deposited polymer itself erodes or dissolves into the physiological medium over an extended period of time, leaving only the metallic stent. While the various polymers and drug remain on the stent, the plasma-deposited polymer enhances the adhesion of the drug-polymer anchor coating and maintains the coating intact upon exposure to the mechanical stresses encountered during stent deployment.

US Patent:

20110093056, Apr 21, 2011

Filed:

Dec 23, 2010

Appl. No.:

12/977472

Inventors:

Stephen L. Kaplan - San Carlos CA, US
Patrick H. Ruane - Redwood City CA, US
Eric A. Lang - Foster City CA, US
Torsten Kimura - Belmont CA, US

Assignee:

Xtent, Inc. - Menlo Park CA

International Classification:

A61F 2/84
C23C 16/50
A61F 2/82

US Classification:

623 111, 427 221, 623 146

Abstract:

Metallic stents are treated with a gaseous species in a plasma state under conditions causing the species to polymerize and to be deposited in polymerized form on the metallic stent surface prior to the application of a drug-polymer mixture, which is done by conventional non-plasma deposition methods. The drug-polymer mixture once applied forms a coating on the stent surface that releases the drug in a time-release manner and gradually erodes, leaving only the underlying plasma-deposited polymer. In certain cases, the plasma-deposited polymer itself erodes or dissolves into the physiological medium over an extended period of time, leaving only the metallic stent. While the various polymers and drug remain on the stent, the plasma-deposited polymer enhances the adhesion of the drug-polymer anchor coating and maintains the coating intact upon exposure to the mechanical stresses encountered during stent deployment.