Richard 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:

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:

20110125244, May 26, 2011

Filed:

Nov 12, 2010

Appl. No.:

12/945097

Inventors:

Blayne A. Roeder - Lafayette IN, US
Jarin Kratzberg - Lafayete IN, US
William K. Dierking - Louisville KY, US
Steven J. Charlebois - West Lafayette IN, US
Richard A. Swift - South Bend IN, US
Erik E. Rasmussen - Slagelse, DK
Bent Oehlenschlaeger - Skensved, DK
Kim Møgelvang Jensen - Frederiksberg, DK

International Classification:

A61F 2/84
A61F 2/82

US Classification:

623 111, 623 115

Abstract:

A stent graft () for treating Type-A dissections in the ascending aorta () is provided with a plurality of diameter-reducing suture loops (-) operable to constrain the stent graft during deployment thereof in a patient's aorta. The diameter-reducing loops (-) allow the stent graft () to be partially deployed, in such a manner that its location can be precisely adjusted in the patient's lumen. In this manner, the stent graft can be placed just by the coronary arteries () with confidence that these will not be blocked. The stent graft () is also provided with proximal and distal bare stents () for anchoring purposes.

US Patent:

20120022638, Jan 26, 2012

Filed:

Dec 14, 2009

Appl. No.:

13/139917

Inventors:

Alan R. Leewood - Lafayette IN, US
Shuo Yang - West Lafayette IN, US
William K. Dierking - Louisville KY, US
Richard A. Swift - South Bend IN, US

International Classification:

A61F 2/82

US Classification:

623 136

Abstract:

A barb for anchoring an implantable medical device to a body vessel comprises a thin-walled body portion for engagement with a structural element of an implantable medical device and a penetrating element extending from the body portion. The body portion has a longitudinal axis. The penetrating element includes a tip portion for anchoring into tissue and a base portion between the tip portion and the body portion. In a deployed configuration of the barb, the base portion curves away from the longitudinal axis at a first curvature and the tip portion curves toward the longitudinal axis at a second curvature which is opposite in sign from the first.

US Patent:

20130073052, Mar 21, 2013

Filed:

Feb 17, 2011

Appl. No.:

13/579172

Inventors:

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

Assignee:

Med Institute - West Lafayette IN
Cook Medical Technologies LLC - Bloomington IN

International Classification:

A61F 2/82

US Classification:

623 237

Abstract:

A stent () is provided with an improved structural member () at the end () of the stent structure () to minimize deformation of the stent structure when pushing forces are applied to the end of the stent. The improved structural member is wider than other structural members () in the stent structure. The improved structural member is better able to distribute pushing forces to the other structural members in the stent structure with minimal deformation.