Charles L Davidson

US Patent:

6689156, Feb 10, 2004

Filed:

Sep 22, 2000

Appl. No.:

09/669060

Inventors:

Charles J. Davidson - Winnetka IL
Gil M. Vardi - Chesterfield MO
Eric Williams - Evanston IL
Stephen Kao - Mountain View CA
Niyazi U. Behyan - Santa Clara CA

Assignee:

Advanced Stent Technologies, Inc. - Pleasanton CA

International Classification:

A61F 206

US Classification:

623 111, 606108, 606194

Abstract:

A system and method for delivering and positioning a stent within a bifurcated body lumen includes a stent delivery system including a catheter, expansion device, a stent with a side hole disposed on the expansion device, and an ultrasound transducer disposed between the expansion device and the stent. The ultrasound transducer is configured for transmitting and receiving signals and for imaging of a body lumen so as to locate an ostium of a branch vessel and facilitate alignment of the stent side hole with the ostium.

US Patent:

6835203, Dec 28, 2004

Filed:

Jan 7, 2002

Appl. No.:

09/600348

Inventors:

Gil M. Vardi - Chicago IL
Charles J. Davidson - Winnetka IL
Eric Elam - Evanston IL
Stuart Lin - Seabrook TX

Assignee:

Advanced Stent Technologies, Inc. - Pleasanton CA

International Classification:

A61F 206

US Classification:

623 134, 623 135

Abstract:

The bifurcating double stent apparatus ( ) of the present invention comprises a generally cylindrical main stent ( ), a generally cylindrical branch stent ( ), which are shown as fully dilated in a subject main vessel ( ), and a subject branch vessel ( ). The main stent ( ) is deployed prior to the branch stent ( ) which is then aligned with the side opening ( ) of the main stent ( ), and attached at that location.

US Patent:

6962602, Nov 8, 2005

Filed:

Jan 18, 2002

Appl. No.:

10/050524

Inventors:

Gil M. Vardi - Chicago IL, US
Charles J. Davidson - Winnetka IL, US

International Classification:

A61F002/06

US Classification:

623 111, 623 135, 606108

Abstract:

An imageable extendable stent apparatus for insertion into a bifurcating vessel or a vessel opening. The stent apparatus comprises a main stent and a flared stent, which may used individually or in combination with each other. The flared stent may be interlocked with the main stent to provide stent coverage over the entire region of a bifurcation. The main stent of the apparatus may be deployed at the bifurcation point of a vessel, allowing unimpeded future access to the side branch of the bifurcated vessel. The flared stent may be employed at vessel openings. Also disclosed and claimed are methods for implanting the extendable stent apparatus into the bifurcation point or the ostium of a subject vessel.

US Patent:

7118593, Oct 10, 2006

Filed:

Oct 14, 2003

Appl. No.:

10/683165

Inventors:

Charles J. Davidson - Winnetka IL, US
Eric Williams - Pleasanton CA, US
Gil M. Vardi - Town and Country MI, US
Stuart Lin - Sunnyvale CA, US

Assignee:

Advanced Stent Technologies, Inc. - Concord CA

International Classification:

A61F 2/06

US Classification:

623 115, 623 135

Abstract:

The present invention concerns novel stent apparatuses for use in treating lesions at or near the bifurcation point in bifurcated cardiac, coronary, renal, peripheral vascular, gastrointestinal, pulmonary, urinary and neurovascular vessels and brain vessels. More particularly, the invention concerns a stent apparatus with at least one side opening which may further comprise an extendable stent portion laterally extending from the side opening and at least partly in registry with the wall of the side opening. Devices constructed in accordance with the invention include, singularly or in combination, a main expandable stent comprising at least one substantially circular side opening located between its proximal and distal end openings, which side opening may further comprise an expandable portion extending radially outward from the edges of the side opening; and a branch stent comprising proximal and distal end openings and which may further comprise a contacting portion at its proximal end, and which may optionally be constructed to form either a perpendicular branch or a non-perpendicular branch when inserted through a side opening of the main stent. The stents of the invention are marked with, or at least partially constructed of, a material which is imageable during intraluminal catheterization techniques, most preferably but not limited to ultrasound and x-ray.

US Patent:

7220275, May 22, 2007

Filed:

Aug 21, 2003

Appl. No.:

10/644550

Inventors:

Charles J. Davidson - Winnetka IL, US
Gil M. Vardi - Town and Country MO, US
Eric Williams - Fairfield CA, US
Amnon Yadin - Pleasanton CA, US
Yossi Morik - Chicago IL, US
Eitan Konstantino - Pleasanton CA, US
Tanhum Feld - Moshav Merhavia, IL

Assignee:

Advanced Stent Technologies, Inc. - Pleasanton CA

International Classification:

A61F 2/06

US Classification:

623 135

Abstract:

The present invention is directed to a stent for use in a bifurcated body lumen having a main branch and a side branch. The stent comprises a radially expandable generally tubular stent body having proximal and distal opposing ends with a body wall having a surface extending therebetween. The surface has a geometrical configuration defining a first pattern, and the first pattern has first pattern struts and connectors arranged in a predetermined configuration. The stent also comprises a branch portion comprised of a second pattern, wherein the branch portion is at least partially detachable from the stent body.

US Patent:

7220407, May 22, 2007

Filed:

Oct 27, 2003

Appl. No.:

10/694579

Inventors:

Jayesh Mehta - Chicago IL, US
Seema Singhal - Chicago IL, US
Charles Davidson - Winnetka IL, US
Nirat Beohar - Chicago IL, US
Robert Bonow - Glencoe IL, US

Assignee:

Amgen Inc. - Thousand Oaks CA

International Classification:

A61K 38/19
A61K 38/20
A61K 38/18
A61K 45/00

US Classification:

424 851, 424 852, 435 12, 514 12

Abstract:

The present invention relates to methods of using Granulocyte Colony Stimulating Factor (G-CSF) polypeptide in conjunction with reperfusion therapy in the treatment of acute myocardial infarction or other ischemic events. This treatment can be used alone or in combination with other well-known methods of treatment.

US Patent:

7341598, Mar 11, 2008

Filed:

Mar 17, 2004

Appl. No.:

10/802036

Inventors:

Charles J. Davidson - Winnetka IL, US
Gil M. Vardi - Town and Country MO, US
Eric Williams - Fairfield CA, US
Amnon Yadin - Pleasanton CA, US
Yossi Morik - Chicago IL, US
Eitan Konstantino - Orinda CA, US
Tanhum Feld - Moshav Merhavia, IL

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

A61F 2/06

US Classification:

623 135, 623 116

Abstract:

The present invention is directed to a stent for use in a bifurcated body lumen having a main branch and a side branch. The stent comprises a radially expandable generally tubular stent body having proximal and distal opposing ends with a body wall having a surface extending therebetween. The surface has a geometrical configuration defining a first pattern, and the first pattern has first pattern struts and connectors arranged in a predetermined configuration. The stent also comprises a branch portion comprised of a second pattern, wherein the branch portion is at least partially detachable from the stent body.

US Patent:

7537609, May 26, 2009

Filed:

Oct 10, 2006

Appl. No.:

11/545254

Inventors:

Charles J. Davidson - Winnetka IL, US
Eric Williams - Pleasanton CA, US
Gil M. Vardi - Town and Country MO, US
Stuart Lin - Sunnyvale CA, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

A61F 2/06

US Classification:

623 135, 623 115

Abstract:

The present invention concerns novel stent apparatuses for use in treating lesions at or near the bifurcation point in bifurcated cardiac, coronary, renal, peripheral vascular, gastrointestinal, pulmonary, urinary and neurovascular vessels and brain vessels. More particularly, the invention concerns a stent apparatus with at least one side opening which may further comprise an extendable stent portion laterally extending from the side opening and at least partly in registry with the wall of the side opening. Devices constructed in accordance with the invention include, singularly or in combination, a main expandable stent comprising at least one substantially circular side opening located between its proximal and distal end openings, which side opening may further comprise an expandable portion extending radially outward from the edges of the side opening; and a branch stent comprising proximal and distal end openings and which may further comprise a contacting portion at its proximal end, and which may optionally be constructed to form either a perpendicular branch or a non-perpendicular branch when inserted through a side opening of the main stent. The stents of the invention are marked with, or at least partially constructed of, a material which is imageable during intraluminal catheterization techniques, most preferably but not limited to ultrasound and x-ray.