David Lentz

US Patent:

7766934, Aug 3, 2010

Filed:

Jul 11, 2006

Appl. No.:

11/484464

Inventors:

Dharmendra Pal - Wilmington MA, US
David C. Lentz - Bloomington IN, US

Assignee:

Cook Incorporated - Bloomington IN

International Classification:

A61M 29/00

US Classification:

606200

Abstract:

An embolic protection device includes a basket defined by a section of a set of wires arranged as a plurality of struts. These struts are coupled together at their distal ends as well as to the distal end of a core wire or mandrel. Another section of the wires spirals around the core wire to define a hollow channel in which the core wire can reciprocate. Thus, pulling or pushing a proximal end of the core wire relative to the struts expands or contracts the basket. A filter bag is attached to the basket for capturing clots when the basket is in an expanded configuration.

US Patent:

7771452, Aug 10, 2010

Filed:

Jul 11, 2006

Appl. No.:

11/484425

Inventors:

Dharmendra Pal - Wilmington MA, US
David Christian Lentz - Bloomington IN, US

Assignee:

Cook Incorporated - Bloomington IN

International Classification:

A61M 29/00

US Classification:

606200, 606191

Abstract:

An embolic protection device includes a basket defined by a section of a set of wires arranged as a plurality of struts. These struts are coupled together at the distal end of the basket in a manner to define an opening at the distal end through which a core wire can reciprocate. Another section of the wires spirals around the core wire to define a hollow channel in which the core wire can reciprocate. A filter bag is attached to the distal end of the core wire such that pulling a proximal end of the core wire relative to the spiraled section engages the filter bag with the distal end of the basket to expand the basket and filter bag for capturing clots, and pushing the core wire disengages the filter bag from the distal end of the basket to collapse the basket and filter bag.

US Patent:

7867247, Jan 11, 2011

Filed:

Feb 26, 2010

Appl. No.:

12/714265

Inventors:

Dharmendra Pal - Wilmington MA, US
David Christian Lentz - Bloomington IN, US

Assignee:

Cook Incorporated - Bloomington IN

International Classification:

A61M 29/00

US Classification:

606200, 606191

Abstract:

A method for embolic protection during treatment of a stenotic lesion in a body vessel is provided. The method comprises disposing an embolic protection device in an undeployed state in the body vessel. The device comprises a basket with a set of struts extending from a distal end to a proximal end of the basket, the struts being arranged to define an opening at the distal end, the basket having an expanded state and a collapsed state. A core wire with a distal end and a proximal end is able to reciprocate through the opening at the distal end of the basket. A filter bag is attached only at the distal end of the core wire, the filter bag being located distally to the distal end of the basket when in the collapsed state. The method further comprises moving the core wire relative to the basket to expand the basket and the filter bag in a deployed state downstream from the stenotic lesion to capture emboli during treatment of the stenotic lesion.

US Patent:

20060259118, Nov 16, 2006

Filed:

Apr 20, 2006

Appl. No.:

11/408121

Inventors:

Dharmendra Pal - Wilmington MA, US
Charles Agnew - West Lafayette IN, US
Jacob Flagle - Indianapolis IN, US
David Lentz - Bloomington IN, US
Jeffry Melsheimer - Springville IN, US
Thomas Osborne - Bloomington IN, US
Fred Parker - Unionville IN, US

International Classification:

A61F 2/06

US Classification:

623001110

Abstract:

Delivery systems for self-expanding devices are provided having a system proximal portion with a handle, an elongate middle section delivery device with an outer sheath and inner compression member, and a system distal portion including an outer guide channel member with first and second end portions defining a guide channel that slidably receives an inner guide channel member having a guide channel, the guide channels being substantially aligned. A mounting region for self-expanding devices is disposed radially between the inner and outer guide channel members. The outer guide channel member has a stepped profile from a first outer diameter to a second smaller outer diameter located near a transition region having a breech position opening for passage of a wire guide, catheter, or other medical instrument. The outer member is axially slideable relative to the inner member to deploy a self-expanding device. Methods of using and manufacturing are also provided.

US Patent:

60011254, Dec 14, 1999

Filed:

Mar 18, 1998

Appl. No.:

9/040880

Inventors:

Ellen Golds - Hastings-on-Hudson NY
David J. Lentz - Andover MA
Jamie Henderson - Oakland NJ
Edward J. Dormier - Rockaway NJ
Richard J. Zdrahala - Bloomington MN

Assignee:

Meadox Medicals, Inc. - Oakland NJ

International Classification:

A61F 206

US Classification:

623 1

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. The stent provides patency to the endoprosthesis.