Jason N Hill

US Patent:

6638468, Oct 28, 2003

Filed:

Dec 26, 2000

Appl. No.:

09/748417

Inventors:

Jason P. Hill - Brooklyn Park MN
James R. Lininger - New Hope MN
Brian J. Brown - Hanover MN

Assignee:

SciMed Life Systems, Inc. - Maple Grove MN

International Classification:

B29B 1110

US Classification:

264291, 2642091, 2642101, 26421112, 2642112, 264234, 2642884, 264345, 264635

Abstract:

A thin wall PTFE tube is formed from an extruded green tube. The PTFE tube includes an inner tubular surface and an opposed outer tubular surface defining a tubular wall of a first thickness. The tubular wall is compressed to uniformly reduce the wall-thickness and circumferentially orient the tube. The PTFE tube is positioned over a first elongate roller with the inner tubular surface being in contact therewith. A second roller is positioned against the outer tubular surface of the PTFE tube. The pair of rollers are counter rotated so as to circumferentially compress the tubular wall between the rollers. This results in the uniform reduction in the tubular wall from the first thickness to a lesser second thickness and a circumferential orientation otherwise not occurring in an extruded PTFE paste extrusion.

US Patent:

6827737, Dec 7, 2004

Filed:

Sep 25, 2001

Appl. No.:

09/962062

Inventors:

Jason Peter Hill - Brooklyn Park MN
David John Sogard - Edina MN
David Tseng - Santa Rosa CA

Assignee:

SciMed Life Systems, Inc. - Maple Grove MN

International Classification:

A61B 1700

US Classification:

623 14, 623 113

Abstract:

An implantable composite device for regulated delivery of bioactive agents to the site of implantation includes at least two zones of distinct porosities through its cross-section. One zone is of a sufficient porosity to permit regulated transport of bioactive agents associated with the device to an area of the body in need of treatment. The bioactive agent associated with the device can be either a therapeutic or diagnostic agent. In a particular embodiment of the invention, the device includes a tubular body consisting of a first luminal layer of ePTFE having a porosity sufficient to promote cell endothelization along the luminal surface; and a second polymeric layer disposed on the first layer of a porosity permitting regulated transport of the bioactive agents.

US Patent:

6939119, Sep 6, 2005

Filed:

Sep 23, 2003

Appl. No.:

10/668517

Inventors:

Jason P. Hill - Brooklyn Park MN, US
James R. Lininger - New Hope MN, US
Brian J. Brown - Hanover MN, US

Assignee:

SciMed Life Systems, Inc. - Maple Grove MN

International Classification:

B29C055/22

US Classification:

425363, 425367, 425393

Abstract:

A thin wall PTFE tube is formed from an extruded green tube. The PTFE tube includes an inner tubular surface and an opposed outer tubular surface defining a tubular wall of a first thickness. The tubular wall is compressed to uniformly reduce the wall-thickness and circumferentially orient the tube. The PTFE tube is positioned over a first elongate roller with the inner tubular surface being in contact therewith. A second roller is positioned against the outer tubular surface of the PTFE tube. The pair of rollers are counter rotated so as to circumferentially compress the tubular wall between the rollers. This results in the uniform reduction in the tubular wall from the first thickness to a lesser second thickness and a circumferential orientation otherwise not occurring in an extruded PTFE paste extrusion.

US Patent:

6945991, Sep 20, 2005

Filed:

Nov 28, 2000

Appl. No.:

09/723852

Inventors:

Christopher Brian Brodeur - Andover MN, US
Jason Peter Hill - Cottage Grove MN, US
David John Sogard - Edina MN, US
Susan M. Shoemaker - Elk River MN, US

Assignee:

Boston Scientific/SciMed Life Systems, Inc. - Maple Grove MN

International Classification:

A61F002/06

US Classification:

623 113

Abstract:

A tubular implantable prosthesis is formed of porous expanded polytetrafluoroethylene. The tubular prosthesis includes a substantially continuous ePTFE tubular first body and perimetrically non-continuous second tubular body. A circumferentially deformable support structure is interposed between the inner and outer tubular bodies. The second tubular body is formed of a plurality of elongate PTFE strips. The strips are secured to the first body and arranged longitudinally in a non-overlapping relationship. The prosthesis provides for both axial and radial compliance.

US Patent:

7550003, Jun 23, 2009

Filed:

Jul 23, 2002

Appl. No.:

10/200997

Inventors:

David Sogard - Edina MN, US
Susan Shoemaker - Elk River MN, US
Jason Hill - Cottage Grove MN, US
Bruce A. Parsons - Pompano Beach FL, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

A61F 2/06

US Classification:

623 113

Abstract:

A method and apparatus for forming a covered endoprosthesis employs a conformed polymeric coating about an expandable stent. The expandable stent has an open tubular construction. A first polymeric liner is positioned about an inner surface of the tubular stent and a second polymeric liner is positioned about an outer surface of the tubular stent. The first and second polymeric liners are conformed to the tubular stent and laminated together through the open construction of the stent at a location coextensive with the inner surface of the tubular stent.

US Patent:

7569071, Aug 4, 2009

Filed:

Sep 21, 2005

Appl. No.:

11/232403

Inventors:

Patrick A. Haverkost - Brooklyn Center MN, US
Jason P. Hill - Brooklyn Park MN, US
Susan M. Shoemaker - Elk River MN, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

A61F 2/06

US Classification:

623 124

Abstract:

A venous valve with a frame and valve leaflets that provide a sinus pocket. The venous valve provides for unidirectional flow of a liquid through the valve.

US Patent:

7597775, Oct 6, 2009

Filed:

Oct 30, 2001

Appl. No.:

10/012919

Inventors:

David J. Sogard - Edina MN, US
Jason P. Hill - Brooklyn Park MN, US
Timothy S. Girton - Maple Grove MN, US
Christopher B. Brodeur - Andover MN, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

B32B 37/00

US Classification:

156294, 156293, 15624411

Abstract:

The present invention is directed to a green fluoropolymer tube which has a wall thickness of about 250 microns or less, preferably about 200 microns or less, and more preferably about 125 microns or less. With such thinness, the green tube may be formed into a tube of expanded fluoropolymer having a wall thickness of about 250 microns or less, preferably about 200 μm or less and more preferably about 125 microns or less. Such an expanded fluoropolymer tube is particularly well-suited for use as an endovascular prosthesis, such as a graft, or in a stent-graft, because of its flexibility and strength.

US Patent:

7670368, Mar 2, 2010

Filed:

Feb 7, 2005

Appl. No.:

11/052655

Inventors:

Jason P. Hill - Cottage Grove MN, US
Joseph M. Thielen - Buffalo MN, US
William J. Drasler - Minnetonka MN, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

A61F 2/06
A61F 2/24

US Classification:

623 124

Abstract:

A venous valve with a frame and a cover on the frame for unidirectional flow of a liquid through the valve.