Richard S Swift

US Patent:

8574284, Nov 5, 2013

Filed:

May 26, 2009

Appl. No.:

12/472082

Inventors:

Blayne A. Roeder - Lafayette IN, US
Jarin Kratzberg - Lafayette IN, US
William K. Dierking - Louisville KY, US
Erik E. Rasmussen - Slagelse, DK
Bent Oehlenschlaeger - Skensved, DK
Kim Mogelvang Jensen - Kobenhavn SV, DK
David Brocker - Carmel IN, US
Alan R. Leewood - Lafayette IN, US
Timothy A. Chuter - San Francisco CA, US
Steven J. Charlebois - West Lafayette IN, US
Richard A. Swift - South Bend IN, US
Sharath Gopalakrishnamurthy - Bangalore, IN
Matthew S. Huser - West Lafayette IN, US

Assignee:

Cook Medical Technologies LLC - Bloomington IN

International Classification:

A61F 2/06

US Classification:

623 113, 623 116, 623 115, 623 136

Abstract:

A stent graft for use in a medical procedure to treat a dissection of a patient's ascending thoracic aorta. The stent graft includes bare alignment stents at least at a proximal end, and often with a stent at both ends, each stent having opposing sets of curved apices, where the curved section of one broader set of apices has a radius of curvature that is greater than the curved section of the other narrower set of apices. The proximal stent is flared in a manner such that its broad apices occupy a larger circumference around the stent than do its narrower apices, where this flared feature provides for anchoring engagement near the aortic root in a manner not interfering with the coronary arteries or the aortic valve.

US Patent:

20070185560, Aug 9, 2007

Filed:

Nov 27, 2006

Appl. No.:

11/604573

Inventors:

Blayne Roeder - Lafayette IN, US
Richard Swift - South Bend IN, US
David Grewe - West Lafayette IN, US

Assignee:

Cook Incorporated - Bloomington IN

International Classification:

A61F 2/06

US Classification:

623001150, 623001160

Abstract:

An expandable stent for medical implantation is described which has a generally cylindrical structure with a central longitudinal axis. At least a portion of the generally cylindrical structure is formed from an arrangement of circumferentially curved structural members. The portion expands from a compressed state to an expanded state by a spiraling motion of each of the structural members about the central longitudinal axis. In the compressed state, each of the structural members may nest within an open region formed by segments composing the structural member, such that the portion of the generally cylindrical structure has no overlapping regions. A ratio of a circumferential length of each structural member to a spacing between adjacent structural members may be in the range of about 1.8 to about 2.3.

US Patent:

20080195193, Aug 14, 2008

Filed:

Jan 30, 2008

Appl. No.:

12/022390

Inventors:

James D. Purdy - Lafayette IN, US
Richard A. Swift - South Bend IN, US
Blayne A. Roeder - Lafayette IN, US
Alan R. Leewood - Lafayette IN, US
Jichao Sun - West Lafayette IN, US

Assignee:

Cook Incorporated - Bloomington IN

International Classification:

A61F 2/06

US Classification:

623 116, 623 146

Abstract:

A balloon expandable covered stent consists of a plurality of primary stent units, each having an undulating shape defined by a series of primary strut members converging to form peaks and valleys. The primary stent units are assembled into a single cylindrical structure of the stent by connecting corresponding peaks with secondary strut members. Generally, surfaces of the stent may then coated with a polymeric, hyper-elastic material, preferably Thoralon, by pre-expanding the stent prior to coating.

US Patent:

20090171437, Jul 2, 2009

Filed:

Dec 11, 2008

Appl. No.:

12/332904

Inventors:

David Brocker - Carmel IN, US
William K. Dierking - West Lafayette IN, US
Timothy A.M. Chuter - San Francisco CA, US
Blayne A. Roeder - Lafayette IN, US
Steven J. Charlebois - Lafayette IN, US
Richard A. Swift - South Bend IN, US
Matthew S. Huser - West Lafayette IN, US

Assignee:

Cook Incorporated - Bloomington IN
MED Institute, Inc. - West Lafayette IN

International Classification:

A61F 2/82

US Classification:

623 113

Abstract:

A stent for use in a medical procedure having opposing sets of curved apices, where the curved section of one set of apices has a radius of curvature that is greater than the curved section of the other set of apices. One or more such stents may be attached to a graft material for use in endovascular treatment of, for example, aneurysm, thoracic dissection, or other body vessel condition.

US Patent:

20100161026, Jun 24, 2010

Filed:

Nov 19, 2009

Appl. No.:

12/622351

Inventors:

David Brocker - Carmel IN, US
William K. Dierking - West Lafayette KY, US
Alan R. Leewood - Lafayette IN, US
Timothy A.M. Chuter - San Francisco CA, US
Blayne A. Roeder - Lafayette IN, US
Steven J. Charlesbois - Lafayette IN, US
Richard A. Swift - South Bend IN, US
Matthew Huser - West Lafayette IN, US
Jarin Kratzberg - Lafayette IN, US
Erik E. Rasmussen - Slagelse, DK
Bent Oehlenschlaeger - Skensved, DK
Kim Møgelvang Jensen - København, DK

International Classification:

A61F 2/06
A61F 2/82

US Classification:

623 113, 623 116

Abstract:

A stent for use in a medical procedure having opposing sets of curved apices, where the curved section of one set of apices has a radius of curvature that is greater than the curved section of the other set of apices. One or more such stents may be attached to a graft material for use in endovascular treatment of, for example, aneurysm, thoracic dissection, or other body vessel condition.

US Patent:

20100256736, Oct 7, 2010

Filed:

Jun 17, 2010

Appl. No.:

12/817845

Inventors:

JAMES D. PURDY - Lafayette IN, US
Richard A. Swift - South Bend IN, US
Blayne A. Roeder - Lafayette IN, US
Alan R. Leewood - Lafayette IN, US
Jichao Sun - West Lafayette IN, US

International Classification:

A61F 2/82
B05D 3/12

US Classification:

623 115, 623 144, 427 225

Abstract:

A balloon expandable covered stent consists of a plurality of primary stent units, each having an undulating shape defined by a series of primary strut members converging to form peaks and valleys. The primary stent units are assembled into a single cylindrical structure of the stent by connecting corresponding peaks with secondary strut members. Generally, surfaces of the stent may then coated with a polymeric, hyper-elastic material, preferably Thoralon, by pre-expanding the stent prior to coating.

US Patent:

20100292778, Nov 18, 2010

Filed:

May 15, 2009

Appl. No.:

12/467047

Inventors:

Blayne A. Roeder - Lafayette IN, US
Seoggwan Kim - West Lafayette IN, US
Richard A. Swift - South Bend IN, US

Assignee:

MED Institute, Inc. - West Lafayette IN

International Classification:

A61F 2/06

US Classification:

623 117

Abstract:

An expandable stent for use in a body vessel comprises a thin-walled tubular framework including two or more circumferentially adjacent end members extending in a longitudinal direction from an end of the framework. In a delivery configuration of the tubular framework, the end members have an interlocking configuration. Each end member has a first interlocking side and a second interlocking side, where the first interlocking side has a circumferentially directed protrusion and the second interlocking side has a circumferentially directed recess. The protrusion of a first end member mates with the recess of a second end member. In an expanded configuration of the tubular framework, the end members are disengaged from the interlocking configuration. Each end member may be an eyelet including an opening for a radiopaque rivet. A method of preparing the expandable stent for delivery into a body vessel is also described.

US Patent:

20110118821, May 19, 2011

Filed:

Oct 14, 2010

Appl. No.:

12/904452

Inventors:

David Brocker - Carmel IN, US
William K. Dierking - Louisville KY, US
Alan R. Leewood - Lafayette IN, US
Timothy A.M. Chuter - San Francisco CA, US
Blayne A. Roeder - Lafayette IN, US
Steven J. Charlebois - West Lafayette IN, US
Richard A. Swift - South Bend IN, US
Matthew S. Huser - West Lafayette IN, US

Assignee:

Cook Incorporated - Bloomington IN
MED Institute, Inc. - West Lafayette IN

International Classification:

A61F 2/82

US Classification:

623 116, 623 115

Abstract:

Various stents and stent-graft systems for treatment of medical conditions are disclosed. In one embodiment, an exemplary stent-graft system may be used for endovascular treatment of a thoracic aortic aneurysm. The stent-graft system may comprise proximal and distal components, each comprising a graft having proximal and distal ends, where upon deployment the proximal and distal components at least partially overlap with one another to provide a fluid passageway therebetween. The proximal component may comprise a proximal stent having a plurality of proximal and distal apices connected by a plurality of generally straight portions, where a radius of curvature of at least one of the proximal apices may be greater than the radius of curvature of at least one of the distal apices. The distal component may comprise a proximal z-stent coupled to the graft, where the proximal end of the graft comprises at least scallop formed therein that generally follows the shape of the proximal z-stent. Further, the distal component may comprise at least one z-stent stent coupled to the distal end of the graft and extending distally therefrom that reduces proximal migration of the distal component.