Edward J Dormier

US Patent:

6428571, Aug 6, 2002

Filed:

Mar 14, 2000

Appl. No.:

09/525710

Inventors:

David Lentz - LaJolla CA
Jamie Henderson - Oakland NJ
Edward Dormier - Rockaway NJ
Richard Zdrahala - Eden Prairie MN
Gary Loomis - Morristown NJ
Ronald Rakos - Neshanic Station NJ
Krzysztof Sowinski - Wallington NJ

Assignee:

Scimed Life Systems, Inc. - Maple Grove MN

International Classification:

A61F 206

US Classification:

623 14

Abstract:

An implantable microporous ePTFE tubular vascular graft exhibits long term patency, superior radial tensile strength and suture hole elongation resistance. The graft includes a first ePTFE tube and a second ePTFE tube circumferentially disposed over the first tube. The first ePTFE tube exhibits a porosity sufficient to promote cell endothelization, tissue ingrowth and healing. The second ePTFE tube exhibits enhanced radial strength in excess of the radial tensile strength of the first tube.

US Patent:

6530765, Mar 11, 2003

Filed:

Jun 16, 2000

Appl. No.:

09/595548

Inventors:

Richard J. Zdrahala - Montville NJ
Nick Popadiuk - Hillsborough NJ
David J. Lentz - Randolph NJ
Edward J. Dormier - Rockaway NJ

Assignee:

Meadox Medicals, Inc. - Oakland NJ

International Classification:

B29C 4724

US Classification:

425144, 425381, 4253781, 425467

Abstract:

An improved method and apparatus is provided for extruding ePTFE tube for use in medical applications. A tube of PTFE is extruded, preferably in an extrusion process, using counter-rotated die components. The die component is maintained at a constant temperature during processing. The resulting green tube has enhanced fibrous state formation in a direction perpendicular to the direction of extrusion. The PTFE green tube is then subjected to secondary operations such as stretching and expansion to yield medical product. The ePTFE tube structure is defined by nodes interconnected by elongate fibrils. Both the nodes and fibrils are substantially randomly tilted with respect to the longitudinal axis of the tube. This particular structure yields a tube which exhibits a high degree of radial tear strength useful in medical applications.

US Patent:

6719783, Apr 13, 2004

Filed:

Aug 5, 2002

Appl. No.:

10/212609

Inventors:

David Lentz - LaJolla CA
Jamie Henderson - Oakland NJ
Edward Dormier - Rockaway NJ
Richard Zdrahala - Eden Prairie MN
Gary Loomis - Morristown NJ
Ronald Rakos - Neshanic Station NJ
Krzysztof Sowinski - Wallington NJ

Assignee:

SciMed Life Systems, Inc. - Maple Grove MN

International Classification:

A61F 206

US Classification:

623 14, 623 149

Abstract:

An implantable microporous ePTFE tubular vascular graft exhibits long term patency, superior radial tensile strength and suture hole elongation resistance. The graft includes a first ePTFE tube and a second ePTFE tube circumferentially disposed over the first tube. The first ePTFE tube exhibits a porosity sufficient to promote cell endothelization, tissue ingrowth and healing. The second ePTFE tube exhibits enhanced radial strength in excess of the radial tensile strength of the first tube.

US Patent:

7044961, May 16, 2006

Filed:

Sep 21, 2001

Appl. No.:

09/957964

Inventors:

David J. Lentz - Randolph NJ, US
Edward Dormier - Rockaway NJ, US

Assignee:

Meadox Medicals, Inc. - Oakland NJ

International Classification:

A61F 2/82

US Classification:

623 113, 623 117

Abstract:

An implantable intraluminal device includes a multilayer composite tubular device supporting one or more stents between the layer thereof. A first porous elongate tube includes an exterior surface and an interior luminal surface. A radially expandable member is disposed about the exterior surface of the first tube. A second porous elongate tube is disposed concentrically over the first tube and is secured thereto so that the radially expandable member is longitudinally immobilized therebetween.

US Patent:

7244271, Jul 17, 2007

Filed:

Apr 9, 2004

Appl. No.:

10/822200

Inventors:

David Lentz - LaJolla CA, US
Jamie Henderson - Oakland NJ, US
Edward Dormier - Rockaway NJ, US
Richard Zdrahala - Eden Prairie MN, US
Gary Loomis - Morristown NJ, US
Ronald Rakos - Neshanic Station NJ, US
Krzysztof Sowinski - Wallington NJ, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

A61F 2/06

US Classification:

623 144, 623 11

Abstract:

An implantable microporous ePTFE tubular vascular graft exhibits long term patency, superior radial tensile strength and suture hole elongation resistance. The graft includes a first ePTFE tube and a second ePTFE tube circumferentially disposed over the first tube. The first ePTFE tube exhibits a porosity sufficient to promote cell endothelization, tissue ingrowth and healing. The second ePTFE tube exhibits enhanced radial strength in excess of the radial tensile strength of the first tube.

US Patent:

8083790, Dec 27, 2011

Filed:

Mar 29, 2006

Appl. No.:

11/392461

Inventors:

David J. Lentz - Randolph NJ, US
Edward Dormier - Rockaway NJ, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

A61F 2/06

US Classification:

623 113, 623 117

Abstract:

An implantable intraluminal device includes a multilayer composite tubular device supporting one or more stents between the layer thereof. A first porous elongate tube includes an exterior surface and an interior luminal surface. A radially expandable member is disposed about the exterior surface of the first tube. A second porous elongate tube is disposed concentrically over the first tube and is secured thereto so that the radially expandable member is longitudinally immobilized therebetween.

US Patent:

20070244539, Oct 18, 2007

Filed:

Jun 7, 2007

Appl. No.:

11/810755

Inventors:

David Lentz - LaJolla CA, US
Jamie Henderson - Oakland NJ, US
Edward Dormier - Rockaway NJ, US
Richard Zdrahala - Eden Prairie MN, US
Gary Loomis - Morristown NJ, US
Ronald Rakos - Neshanic Station NJ, US
Krzysztof Sowinski - Wallington NJ, US

International Classification:

A61F 2/06

US Classification:

623001400, 623001440

Abstract:

An implantable microporous ePTFE tubular vascular graft exhibits long term patency, superior radial tensile strength and suture hole elongation resistance. The graft includes a first ePTFE tube and a second ePTFE tube circumferentially disposed over the first tube. The first ePTFE tube exhibits a porosity sufficient to promote cell endothelization, tissue ingrowth and healing. The second ePTFE tube exhibits enhanced radial strength in excess of the radial tensile strength of the first tube.

US Patent:

56074786, Mar 4, 1997

Filed:

Mar 14, 1996

Appl. No.:

8/616047

Inventors:

David J. Lentz - Randolph NJ
Nick Popadiuk - Hillsborough NJ
Peter Schmitt - Garnerville NY
Edward J. Dormier - Rockaway NJ
Richard J. Zdrahala - Montville NJ

Assignee:

Meadox Medicals Inc. - Oakland NJ

International Classification:

A61F 204
A61F 206

US Classification:

623 12

Abstract:

An implantable microporous ePTFE tubular vascular graft exhibits long-term patency, superior radial tensile strength, reduction in tear propagation, and increases in suture retention strength and crush resistance. The graft includes an ePTFE tubular structure having a preselected microporous structure. The tubular structure is wrapped externally with a PTFE yarn in a helical fashion. The helical wrap of yarn is bonded to the exterior surface of the tubular structure by application of heat or heat in combination with force to form a composite structure which substantially maintains the porosity of the underlying tubular structure while increasing the suture retention strength, radial tensile strength, crush resistance, and tear propagation resistance.