Patents by Inventor Frederick S. Keller
Frederick S. Keller has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8613763Abstract: A multiple-sided medical device comprises a frame comprising wire or other resilient material and having a series of bends and interconnecting sides. The device has both a flat configuration and a second, folded configuration which a generally serpentine shape. The device is pushed from a delivery catheter into the lumen of a duct or vessel and may include one or more barbs for anchoring purposes. A full or partial covering of fabric or other flexible material such as DACRON, PTFE, or a collagen-based material such as small intestinal submucosa (SIS), may be sutured or attached to the frame to form an occlusion device, a stent graft, or an implantable, intraluminal valve such as for correcting incompetent veins in the lower legs and feet.Type: GrantFiled: October 27, 2008Date of Patent: December 24, 2013Assignees: Cook Medical Technologies LLC, Cook Biotech Incorporated, Oregon Health Science UniversityInventors: Dusan Pavcnik, Frederick S. Keller, Josef Rosch, Thomas A. Osborne, Brian L. Bates, John A. DeFord, Christopher G. Dixon, Andrew K. Hoffa, Raymond B. Leonard, II, Joseph F. Obermiller
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Patent number: 8444687Abstract: A multiple-sided medical device comprises a frame comprising wire or other resilient material and having a series of bends and interconnecting sides. The device has both a flat configuration and a second, folded configuration which a generally serpentine shape. The device is pushed from a delivery catheter into the lumen of a duct or vessel and may include one or more barbs for anchoring purposes. A full or partial covering of fabric or other flexible material such as DACRON, PTFE, or a collagen-based material such as small intestinal submucosa (SIS), may be sutured or attached to the frame using heat or pressure welding crimping, adhesive, or other techniques to form an occlusion device, a stent graft, or an implantable, intraluminal valve such as for correcting incompetent veins in the lower legs and feet.Type: GrantFiled: February 26, 2009Date of Patent: May 21, 2013Assignees: Cook Medical Technologies LLC, Cook Biotech Incorporated, Oregon Health Science UniversityInventors: Dusan Pavcnik, Frederick S. Keller, Josef Rosch, Thomas A. Osborne, Brian L. Bates, Christopher G. Dixon, Andrew K. Hoffa, Raymond B. Leonard, II, Joseph F. Obermiller, John A. DeFord, Joseph W. Roberts
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Patent number: 7918882Abstract: A multiple-sided valve for implantation within a body vessel comprising a frame comprising a bioabsorbable material is provided. The devices can be pushed from a delivery catheter into the lumen of a duct or vessel and may include one or more barbs for anchoring purposes. A full or partial covering of fabric or other flexible material, or a bioabsorbable material, including a collagen-based material such as small intestinal submucosa (SIS), may be attached to the frame to form an occlusion device, a graft, or an implantable, intraluminal valve such as for correcting incompetent veins in the lower legs and feet.Type: GrantFiled: July 19, 2005Date of Patent: April 5, 2011Assignee: Cook Medical Technologies LLCInventors: Dusan Pavcnik, Frederick S. Keller, Josef Rosch, Thomas A. Osborne
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Patent number: 7686842Abstract: A stent graft (10) with a stent frame (12) having a plurality of stents (16) connected together with monofilament line (22). A covering (14) of collagen having an extracellular matrix (ECM), such as small intestine submucosa (SIS), is disposed through the inside and over the outside of the stent frame. The covering (14) is affixed to the stent frame (12) such as by being sutured onto the stent frame at the ends of the stent frame and also at the connections of the stent bodies, such as at eyelets (24).Type: GrantFiled: May 4, 2001Date of Patent: March 30, 2010Assignee: Oregon Health Sciences UniversityInventors: Dusan Pavcnik, Josef Rösch, Frederick S. Keller
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Publication number: 20090157169Abstract: A multiple-sided medical device comprises a frame comprising wire or other resilient material and having a series of bends and interconnecting sides. The device has both a flat configuration and a second, folded configuration which a generally serpentine shape. The device is pushed from a delivery catheter into the lumen of a duct or vessel and may include one or more barbs for anchoring purposes. A full or partial covering of fabric or other flexible material such as DACRON, PTFE, or a collagen-based material such as small intestinal submucosa (SIS), may be sutured or attached to the frame using heat or pressure welding crimping, adhesive, or other techniques to form an occlusion device, a stent graft, or an implantable, intraluminal valve such as for correcting incompetent veins in the lower legs and feet.Type: ApplicationFiled: February 26, 2009Publication date: June 18, 2009Inventors: Dusan Pavcnik, Frederick S. Keller, Josef Rosch, Thomas A. Osborne, Brian L. Bates, Christopher G. Dixon, Andrew K. Hoffa, Raymond B. Leonard, II, Joseph F. Obermiller, John A. DeFord, Joseph W. Roberts
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Patent number: 7520894Abstract: A multiple-sided medical device comprises a frame comprising wire or other resilient material and having a series of bends and interconnecting sides. The device has both a flat configuration and a second, folded configuration which a generally serpentine shape. The device is pushed from a delivery catheter into the lumen of a duct or vessel and may include one or more barbs for anchoring purposes. A full or partial covering of fabric or other flexible material such as DACRON, PTFE, or a collagen-based material such as small intestinal submucosa (SIS), may be sutured or attached to the frame using heat or pressure welding crimping, adhesive, or other techniques to form an occlusion device, a stent graft, or an implantable, intraluminal valve such as for correcting incompetent veins in the lower legs and feet.Type: GrantFiled: June 22, 2005Date of Patent: April 21, 2009Assignees: Cook Incorporated, Cook Biotech Incorporated, Oregon Health & Science UniversityInventors: Dusan Pavcnik, Frederick S. Keller, Josef Rosch, Thomas A. Osborne, Brian L. Bates, Christopher G. Dixon, Andrew K. Hoffa, Raymond B. Leonard, II, Joseph F. Obermiller, John A. DeFord, Joseph W. Roberts
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Publication number: 20090048662Abstract: A multiple-sided medical device comprises a frame comprising wire or other resilient material and having a series of bends and interconnecting sides. The device has both a flat configuration and a second, folded configuration which a generally serpentine shape. The device is pushed from a delivery catheter into the lumen of a duct or vessel and may include one or more barbs for anchoring purposes. A full or partial covering of fabric or other flexible material such as DACRON, PTFE, or a collagen-based material such as small intestinal submucosa (SIS), may be sutured or attached to the frame to form an occlusion device, a stent graft, or an implantable, intraluminal valve such as for correcting incompetent veins in the lower legs and feet.Type: ApplicationFiled: October 27, 2008Publication date: February 19, 2009Inventors: Dusan Pavcnik, Frederick S. Keller, Josef Rosch, Thomas A. Osborne, Brian L. Bates, John A. DeFord, Christopher G. Dixon, Andrew K. Hoffa, Raymond B. Leonard, II, Joseph F. Obermiller
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Patent number: 7452371Abstract: A multiple-sided medical device comprises a frame comprising wire or other resilient material and having a series of bends and interconnecting sides. The device has both a flat configuration and a second, folded configuration which a generally serpentine shape. The device is pushed from a delivery catheter into the lumen of a duct or vessel and may include one or more barbs for anchoring purposes. A full or partial covering of fabric or other flexible material such as DACRON, PTFE, or a collagen-based material such as small intestinal submucosa (SIS), may be sutured or attached to the frame to form an occlusion device, a stent graft, or an implantable, intraluminal valve such as for correcting incompetent veins in the lower legs and feet.Type: GrantFiled: February 5, 2001Date of Patent: November 18, 2008Assignees: Cook Incorporated, Oregon Health & Science University, Cook Biotech, Inc.Inventors: Dusan Pavcnik, Frederick S. Keller, Josef Rosch, Thomas A. Osborne, Brian L. Bates, Christopher G. Dixon, Andrew K. Hoffa, Raymond B. Leonard, II, Joseph F. Obermiller, John A. DeFord, Joseph W. Roberts
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Patent number: 6974474Abstract: A multiple-sided medical device comprises a closed frame of a single piece of wire or other resilient material and having a series of bends and interconnecting sides. The device has both a flat configuration and a second, folded configuration that comprises a self-expanding stent. The stent is pushed from a delivery catheter into the lumen of a duct or vessel. One or more barbs are attached to the frame of the device for anchoring or to connect additional frames. A covering of fabric or other flexible material such as DACRON, PTFE, or collagen, is sutured or attached to the frame to form an occlusion device, a stent graft, or an artificial valve such as for correcting incompetent veins in the lower legs and feet. A partial, triangular-shaped covering over the lumen of the device allows the valve to open with normal blood flow and close to retrograde flow.Type: GrantFiled: November 14, 2002Date of Patent: December 13, 2005Assignee: Cook IncorporatedInventors: Dusan Pavcnik, Frederick S. Keller, Josef Rosch, Thomas A. Osborne
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Publication number: 20030125795Abstract: A multiple-sided medical device comprises a closed frame of a single piece of wire or other resilient material and having a series of bends and interconnecting sides. The device has both a flat configuration and a second, folded configuration that comprises a self-expanding stent. The stent is pushed from a delivery catheter into the lumen of a duct or vessel. One or more barbs are attached to the frame of the device for anchoring or to connect additional frames. A covering of fabric or other flexible material such as DACRON, PTFE, or collagen, is sutured or attached to the frame to form an occlusion device, a stent graft, or an artificial valve such as for correcting incompetent veins in the lower legs and feet. A partial, triangular-shaped covering over the lumen of the device allows the valve to open with normal blood flow and close to retrograde flow.Type: ApplicationFiled: November 14, 2002Publication date: July 3, 2003Applicant: Cook IncorporatedInventors: Dusan Pavcnik, Frederick S. Keller, Josef Rosch, Thomas A. Osborne
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Patent number: 6508833Abstract: A multiple-sided medical device comprises a closed frame of a single piece of wire or other resilient material and having a series of bends and interconnecting sides. The device has both a flat configuration and a second, folded configuration that comprises a self-expanding stent. The stent is pushed from a delivery catheter into the lumen of a duct or vessel. One or more barbs are attached to the frame of the device for anchoring or to connect additional frames. A covering of fabric or other flexible material such as DACRON, PTFE, or collagen, is sutured or attached to the frame to form an occlusion device, a stent graft, or an artificial valve such as for correcting incompetent veins in the lower legs and feet. A partial, triangular-shaped covering over the lumen of the device allows the valve to open with normal blood flow and close to retrograde flow.Type: GrantFiled: March 12, 2001Date of Patent: January 21, 2003Assignee: Cook IncorporatedInventors: Dusan Pavcnik, Frederick S. Keller, Josef Rosch, Thomas A. Osborne
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Patent number: 6325819Abstract: An endovascular graft prosthesis for arrangement at an aneurysm positioned in the vicinity of a bifurcation in an arterial system having a main lumen and a first and a second branch lumen. The endovascular graft prosthesis includes a prosthetic device with at least one expandable tubular frame body for arrangement in the main lumen and a first and a second graft limb. The frame body is contractible into a first shape with a smaller diameter for introduction to a vascular site upstream of the aneurysm and is radially expandable into a second shape having a larger diameter and an inner lumen. The frame body is provided with a covering which extends across the inner lumen of the tubular frame body and has two apertures each of which has a diameter of less than half the larger diameter of the frame body. The first and second limbs have a cranial end for mounting at one of the apertures and a caudal end for arrangement in one of the branch lumens.Type: GrantFiled: August 19, 1996Date of Patent: December 4, 2001Assignee: Cook IncorporatedInventors: Dusan Pavcnik, Frederick S. Keller, Barry T. Uchida
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Publication number: 20010041928Abstract: A stent graft (10) with a stent frame (12) having a plurality of stents (16) connected together with monofilament line (22). A covering (14) of collagen having an extracellular matrix (ECM), such as small intestine submucosa (SIS), is disposed through the inside and over the outside of the stent frame. The covering (14) is affixed to the stent frame (12) such as by being sutured onto the stent frame at the ends of the stent frame and also at the connections of the stent bodies, such as at eyelets (24).Type: ApplicationFiled: May 4, 2001Publication date: November 15, 2001Applicant: Oregon Health Services UniversityInventors: Dusan Pavcnik, Josef Rosch, Frederick S. Keller
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Publication number: 20010039450Abstract: A multiple-sided medical device comprises a frame comprising wire or other resilient material and having a series of bends and interconnecting sides. The device has both a flat configuration and a second, folded configuration which a generally serpentine shape. The device is pushed from a delivery catheter into the lumen of a duct or vessel and may include one or more barbs for anchoring purposes. A full or partial covering of fabric or other flexible material such as DACRON, PTFE, or a collagen-based material such as small intestinal submucosa (SIS), may be sutured or attached to the frame to form an occlusion device, a stent graft, or an implantable, intraluminal valve such as for correcting incompetent veins in the lower legs and feet.Type: ApplicationFiled: February 5, 2001Publication date: November 8, 2001Inventors: Dusan Pavcnik, Frederick S. Keller, Josef Rosch, Thomas A. Osborne, Brian L. Bates, John A. Deford, Christopher G. Dixon, Andrew K. Hoffa, Raymond B. Leonard, Joseph F. Obermiller
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Publication number: 20010011187Abstract: A multiple-sided medical device comprises a closed frame of a single piece of wire or other resilient material and having a series of bends and interconnecting sides. The device has both a flat configuration and a second, folded configuration that comprises a self-expanding stent. The stent is pushed from a delivery catheter into the lumen of a duct or vessel. One or more barbs are attached to the frame of the device for anchoring or to connect additional frames. A covering of fabric or other flexible material such as DACRON, PTFE, or collagen, is sutured or attached to the frame to form an occlusion device, a stent graft, or an artificial valve such as for correcting incompetent veins in the lower legs and feet. A partial, triangular-shaped covering over the lumen of the device allows the valve to open with normal blood flow and close to retrograde flow.Type: ApplicationFiled: March 12, 2001Publication date: August 2, 2001Inventors: Dusan Pavcnik, Frederick S. Keller, Josef Rosch, Thomas A. Osborne
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Patent number: 6200336Abstract: A multiple-sided medical device comprises a closed frame of a single piece of wire or other resilient material and having a series of bends and interconnecting sides. The device has both a flat configuration and a second, folded configuration that comprises a self-expanding stent. The stent is pushed from a delivery catheter into the lumen of a duct or vessel. One or more barbs are attached to the frame of the device for anchoring or to connect additional frames. A covering of fabric or other flexible material such as DACRON, PTFE, or collagen, is sutured or attached to the frame to form an occlusion device, a stent graft, or an artificial valve such as for correcting incompetent veins in the lower legs and feet. A partial, triangular-shaped covering over the lumen of the device allows the valve to open with normal blood flow and close to retrograde flow.Type: GrantFiled: June 2, 1999Date of Patent: March 13, 2001Assignee: Cook IncorporatedInventors: Dusan Pavcnik, Frederick S. Keller, Josef Rosch, Thomas A. Osborne