George A Roberts

US Patent:

20130274685, Oct 17, 2013

Filed:

Jun 7, 2013

Appl. No.:

13/912437

Inventors:

Gary J. Leanna - Holden MA, US
George Tom Roberts - Lincoln MA, US

International Classification:

A61F 2/95

US Classification:

604264

Abstract:

Devices for palliating gastrointestinal strictures using rapid exchange type enteral stent placement catheters. The catheter may include an inner member and an outer member, with the two members being slidable with respect to one another. In various device embodiments, a ramp for directing a guidewire out from within the catheter is provided using portions of the outer member or a shaped mandrel. The inner member may take a number of forms, including a tubular distal portion, a skived or integrally attached elongate midsection, and a proximal portion. A mandrel can be used in a portion proximal of the guidewire ramp, with the mandrel taking one of several disclosed forms.

US Patent:

20140074220, Mar 13, 2014

Filed:

Nov 18, 2013

Appl. No.:

14/082729

Inventors:

Paul K. Norton - Lunenburg MA, US
Michael E. Zupkofska - Rockland MA, US
Gary J. Leanna - Holden MA, US
George Tom Roberts - Lincoln MA, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

A61F 2/90

US Classification:

623 115

Abstract:

A prosthesis including a composite wire forming a mesh, the mesh having a variable diameter wherein at least one end region has a larger diameter than a middle portion; the mesh having an exterior surface and an interior surface, wherein at least one of the surfaces is covered with silicone; and a retrieval loop positioned at at least one end of the mesh.

US Patent:

20200352764, Nov 12, 2020

Filed:

Jul 28, 2020

Appl. No.:

16/940855

Inventors:

- Maple Grove MN, US
GARY J. LEANNA - Holden MA, US
GEORGE T. ROBERTS - Lincoln MA, US

Assignee:

BOSTON SCIENTIFIC SCIMED, INC. - Maple Grove MN

International Classification:

A61F 2/966
A61F 2/95
A61F 2/844
A61F 2/90
A61M 25/00

Abstract:

Devices for palliating gastrointestinal strictures using rapid exchange type enteral stent placement catheters. The catheter may include an inner member and an outer member, with the two members being slidable with respect to one another. In various device embodiments, a ramp for directing a guidewire out from within the catheter is provided using portions of the outer member or a shaped mandrel. The inner member may take a number of forms, including a tubular distal portion, a skived or integrally attached elongate midsection, and a proximal portion. A mandrel can be used in a portion proximal of the guidewire ramp, with the mandrel taking one of several disclosed forms.

US Patent:

20180064568, Mar 8, 2018

Filed:

Nov 10, 2017

Appl. No.:

15/809308

Inventors:

- Maple Grove MN, US
GARY J. LEANNA - Holden MA, US
GEORGE T. ROBERTS - Lincoln MA, US

Assignee:

BOSTON SCIENTIFIC SCIMED, INC. - Maple Grove MN

International Classification:

A61F 2/966
A61M 25/00
A61F 2/90
A61F 2/95

Abstract:

Devices for palliating gastrointestinal strictures using rapid exchange type enteral stent placement catheters. The catheter may include an inner member and an outer member, with the two members being slidable with respect to one another. In various device embodiments, a ramp for directing a guidewire out from within the catheter is provided using portions of the outer member or a shaped mandrel. The inner member may take a number of forms, including a tubular distal portion, a skived or integrally attached elongate midsection, and a proximal portion. A mandrel can be used in a portion proximal of the guidewire ramp, with the mandrel taking one of several disclosed forms.

US Patent:

20160296356, Oct 13, 2016

Filed:

Jun 22, 2016

Appl. No.:

15/189047

Inventors:

- Maple Grove MN, US
GARY J. LEANNA - Holden MA, US
GEORGE T. ROBERTS - Lincoln MA, US

International Classification:

A61F 2/966
A61F 2/844
A61F 2/90
A61M 25/00

Abstract:

Devices for palliating gastrointestinal strictures using rapid exchange type enteral stent placement catheters. The catheter may include an inner member and an outer member, with the two members being slidable with respect to one another. In various device embodiments, a ramp for directing a guidewire out from within the catheter is provided using portions of the outer member or a shaped mandrel. The inner member may take a number of forms, including a tubular distal portion, a skived or integrally attached elongate midsection, and a proximal portion. A mandrel can be used in a portion proximal of the guidewire ramp, with the mandrel taking one of several disclosed forms.