Patents by Inventor Richard S. Stack

Richard S. Stack 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).

  • Patent number: 7217255
    Abstract: An embolic protection device for use in a blood vessel when an interventional procedure is being performed in a stenosed or occluded region to capture any embolic material which may be created and released into the bloodstream during the procedure. The device includes a filtering assembly having a self-expanding strut assembly and a filter element attached thereto. In one embodiment, the filtering assembly is attached to the distal end of a guide wire and is deployed within the patient's vasculature as the guide wire is manipulated into the area of treatment. A restraining sheath placed over the filtering assembly in a coaxial arrangement maintains the filtering assembly in its collapsed position until it is ready to be deployed by the physician. Thereafter, the sheath can be retracted to expose the filtering assembly which will then self-expand within the patient's vasculature.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: May 15, 2007
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: William J. Boyle, Andy E. Denison, Benjamin C. Huter, Scott J. Huter, Richard S. Stack, Kent C. B. Stalker, Christopher Tarapata, John D. Whitfield
  • Patent number: 7152607
    Abstract: A device for inducing weight loss in a patient includes a tubular prosthesis positionable at the gastro-esophageal junction region, preferably below the z-line. In a method for inducing weight loss, the prosthesis is placed such that an opening at its proximal end receives masticated food from the esophagus, and such that the masticated food passes through the pouch and into the stomach via an opening in its distal end.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: December 26, 2006
    Assignee: Synecor, L.L.C.
    Inventors: Richard S. Stack, Richard A. Glenn, William L. Athas, Michael S. Williams
  • Patent number: 7146984
    Abstract: A prosthetic device is described that is positionable within the gastro-esophageal junction region of a patient. The prosthetic device includes a proximal opening and a distal orifice that is adjustable in size prior to and/or following implantation. During use, the prosthetic device is attached to tissue of the gastro-esophageal junction region of the patient, with the device positioned such that food ingested by the patient passes from the esophagus through the proximal opening into the interior of the prosthetic device, and eventually exits the prosthetic device via the distal opening.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: December 12, 2006
    Assignee: Synecor, LLC
    Inventors: Richard S. Stack, Fred E. Silverstein, Nathan Every, William L. Athas, Michael S. Williams, Richard A. Glenn, John Lunsford, Dan Balbierz
  • Patent number: 7121283
    Abstract: A device for inducing weight loss in a patient includes a tubular prosthesis self-expandable from a collapsed position in which the prosthesis has a first diameter to an expanded position in which the prosthesis has a second, larger, diameter. In a method for inducing weight loss, the prosthesis is placed in the collapsed position and inserted into a stomach of a patient. The prosthesis is allowed to self-expand from the collapsed position to the expanded position and into contact with the walls of the stomach, where it induces feelings of satiety and/or inhibits modulation of satiety-controlling factors such as Ghrelin.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: October 17, 2006
    Assignee: Synecor, LLC
    Inventors: Richard S. Stack, Richard A. Glenn, Trevor J. Moody, Fred E. Silverstein, Nathan Every, William S. Eubanks, Jr.
  • Patent number: 7111627
    Abstract: A device for inducing weight loss in a patient includes a tubular prosthesis self-expandable from a collapsed position in which the prosthesis has a first diameter to an expanded position in which the prosthesis has a second, larger, diameter. In a method for inducing weight loss, the prosthesis is placed in the collapsed position and inserted into a stomach of a patient. The prosthesis is allowed to self-expand from the collapsed position to the expanded position and into contact with the walls of the stomach, where it induces feelings of satiety and/or inhibits modulation of satiety-controlling factors such as Ghrelin.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: September 26, 2006
    Assignee: Synecor, LLC
    Inventors: Richard S. Stack, Richard A. Glenn, Trevor J. Moody, Fred E. Silverstein, Nathan Every, William S. Eubanks, Jr.
  • Patent number: 7097665
    Abstract: Described herein is a positioning tool having an elongate portion for carrying a medical implant. Also described is a method of positioning a medical implant using an elongate positioning tool. One form of the method includes positioning a medical implant on a distal portion of an elongate positioning tool, inserting the positioning tool with the implant thereon into a body cavity, manipulating the positioning tool to position the implant into contact with tissue at an attachment location, attaching the implant to surrounding tissue at the attachment location, separating the implant from the positioning tool, and withdrawing the positioning tool from the body. In a preferred embodiment, the position of the implant is visually confirmed using an endoscope before the implant is attached to surrounding tissue. In one embodiment, the implant is a satiation device and the body cavity is the esophagus and/or stomach.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: August 29, 2006
    Assignee: Synecor, LLC
    Inventors: Richard S. Stack, Richard A. Glenn, Dan Balbierz, John Lunsford, William L. Athas
  • Patent number: 7087709
    Abstract: Disclosed are novel polymers derivatized with at least one —NOx group per 1200 atomic mass unit of the polymer. X is one or two. In one embodiment, the polymer is an S-nitrosylated polymer and is prepared by reacting a polythiolated polymer with a nitrosylating agent under conditions suitable for nitrosylating free thiol groups. The polymers of the present invention can be used to coat medical devices to deliver nitric oxide in vivo to treatment sites.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: August 8, 2006
    Assignee: Duke University
    Inventors: Jonathan S. Stamler, Eric J. Toone, Richard S. Stack
  • Patent number: 7018393
    Abstract: A system for enabling the insertion and removal of an embolic protection device, for capturing and retaining embolic debris which may be created during the performance of a therapeutic interventional procedure in a stenosed or occluded region of a blood vessel. The system, in an embodiment thereof, enables the device to be compressed for insertion thereof through a patient's vasculature so as to cross the stenosis in a low profile, and to enable release of compression thereof for expansion and deployment of the device at a location distal to the interventional procedure site.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: March 28, 2006
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: William J. Boyle, Richard S. Stack
  • Patent number: 6875840
    Abstract: Disclosed are novel polymers derivatized with at least one —NOx group per 1200 atomic mass unit of the polymer. X is one or two. In one embodiment, the polymer is an S-nitrosylated polymer and is prepared by reacting a polythiolated polymer with a nitrosylating agent under conditions suitable for nitrosylating free thiol groups. The polymers of the present invention can be used to coat medical devices to deliver nitric oxide in vivo to treatment sites.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: April 5, 2005
    Assignee: Duke University
    Inventors: Jonathan S. Stamler, Eric J. Toone, Richard S. Stack
  • Patent number: 6860898
    Abstract: The invention is directed to a self-expanding stent for implantation into a body lumen, such as an artery. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common longitudinal stent axis and interconnected by a plurality of interconnecting members placed on the stent in a collinear arrangement such as to create at least one continuous spine which extends along the length of the stent. The invention is also directed to a stent delivery system for implantation of a stent in a vessel which includes an outer tubular member having a restraining sheath and an inner tubular member having a distal end which has a compressed stent mounted thereto. The proximal end of the inner tubular member is connected to a housing assembly which prevents the inner tubular member from moving when the outer tubular member is retracted to deploy the stent.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: March 1, 2005
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Richard S. Stack, Matthew J. Fitz, Christopher J. Tarapata
  • Patent number: 6845776
    Abstract: A device for inducing weight loss in a patient includes a tubular prosthesis positionable at the gastro-esophageal junction region, preferably below the z-line. In a method for inducing weight loss, the prosthesis is placed such that an opening at its proximal end receives masticated food from the esophagus, and such that the masticated food passes through the pouch and into the stomach via an opening in its distal end.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: January 25, 2005
    Inventors: Richard S. Stack, Richard A. Glenn, William L. Athas, Michael S. Williams
  • Patent number: 6833002
    Abstract: A deformable sheath is attached to a catheter and introduced intravascularly to be expanded against an arterial wall and entrap plaque therebetween. A stent is subsequently deployed within the expanded sheath and the sheath is then withdrawn from within the vasculature to leave the stent expanded against the arterial wall with the plaque entrapped therebetween.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: December 21, 2004
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Richard S. Stack, Udayan Patel, William J. Boyle, Kent C. B. Stalker, Paul F. Muller
  • Publication number: 20040181242
    Abstract: Described herein is a system for delivering a fastener to body tissue. The system includes an elongate flexible shaft extendable into a body cavity, a fastener-applying head on a distal portion of the shaft, a bending member in contact with the shaft, the bending member moveable into a first position imparting bending forces against the shaft to cause the shaft to bend. Methods for using the system are also described.
    Type: Application
    Filed: March 12, 2003
    Publication date: September 16, 2004
    Inventors: Richard S. Stack, William L. Athas, Dan Balbierz, John Lunsford
  • Publication number: 20040172142
    Abstract: A device for inducing weight loss in a patient includes a tubular prosthesis self-expandable from a collapsed position in which the prosthesis has a first diameter to an expanded position in which the prosthesis has a second, larger, diameter. In a method for inducing weight loss, the prosthesis is placed in the collapsed position and inserted into a stomach of a patient. The prosthesis is allowed to self-expand from the collapsed position to the expanded position and into contact with the walls of the stomach, where it induces feelings of satiety and/or inhibits modulation of satiety-controlling factors such as Ghrelin.
    Type: Application
    Filed: March 4, 2004
    Publication date: September 2, 2004
    Inventors: Richard S. Stack, Richard A. Glenn, Trevor J. Moody, Fred E. Silverstein, Nathan Every, William S. Eubanks
  • Publication number: 20040172141
    Abstract: A device for inducing weight loss in a patient includes a tubular prosthesis positionable at the gastro-esophageal junction region, preferably below the z-line. In a method for inducing weight loss, the prosthesis is placed such that an opening at its proximal end receives masticated food from the esophagus, and such that the masticated food passes through the pouch and into the stomach via an opening in its distal end.
    Type: Application
    Filed: March 4, 2004
    Publication date: September 2, 2004
    Inventors: Richard S. Stack, Richard A. Glenn, William L. Athas, Michael S. Williams
  • Publication number: 20040158331
    Abstract: A prosthetic device is described that is positionable within the gastro-esophageal junction region of a patient. The prosthetic device includes a proximal opening and a distal orifice that is adjustable in size prior to and/or following implantation. During use, the prosthetic device is attached to tissue of the gastro-esophageal junction region of the patient, with the device positioned such that food ingested by the patient passes from the esophagus through the proximal opening into the interior of the prosthetic device, and eventually exits the prosthetic device via the distal opening.
    Type: Application
    Filed: March 12, 2003
    Publication date: August 12, 2004
    Inventors: Richard S. Stack, Fred E. Silverstein, Nathan Every, William L. Athas, Michael S. Williams, Richard A. Glenn, John Lunsford, Dan Balbierz
  • Publication number: 20040153167
    Abstract: Described herein is a positioning tool having an elongate portion for carrying a medical implant. Also described is a method of positioning a medical implant using an elongate positioning tool. One form of the method includes positioning a medical implant on a distal portion of an elongate positioning tool, inserting the positioning tool with the implant thereon into a body cavity, manipulating the positioning tool to position the implant into contact with tissue at an attachment location, attaching the implant to surrounding tissue at the attachment location, separating the implant from the positioning tool, and withdrawing the positioning tool from the body. In a preferred embodiment, the position of the implant is visually confirmed using an endoscope before the implant is attached to surrounding tissue. In one embodiment, the implant is a satiation device and the body cavity is the esophagus and/or stomach.
    Type: Application
    Filed: January 16, 2003
    Publication date: August 5, 2004
    Inventors: Richard S. Stack, Richard A. Glenn, Dan Balbierz, John Lunsford, William L. Athas
  • Publication number: 20040143342
    Abstract: A pouch positionable within the gastro-esophageal region of a patient, such as for use as a satiation device, is described herein. The pouch includes a proximal opening and an exit port, and is positionable such that food ingested by the patient passes into the interior of the pouch and subsequently out the exit port. A barrier on the proximal portion of the pouch contacts surrounding tissue and thereby minimizes passage of food from the esophagus around the exterior of the pouch—thereby substantially preventing food from bypassing the pouch. In preferred forms of the embodiment, the barrier is adaptable in response to movement of the surrounding tissue to maintain contact between the barrier and the surrounding tissue.
    Type: Application
    Filed: January 16, 2003
    Publication date: July 22, 2004
    Inventors: Richard S. Stack, William L. Athas, Richard A. Glenn, Dan Balbierz, John Lunsford, Michael S. Williams
  • Publication number: 20040138761
    Abstract: A device for inducing weight loss in a patient includes a tubular prosthesis positionable at the gastro-esophageal junction region, preferably below the z-line. In a method for inducing weight loss, the prosthesis is placed such that an opening at its proximal end receives masticated food from the esophagus, and such that the masticated food passes through the pouch and into the stomach via an opening in its distal end.
    Type: Application
    Filed: January 5, 2004
    Publication date: July 15, 2004
    Inventors: Richard S. Stack, Richard A. Glenn, William L. Athas, Michael S. Williams
  • Publication number: 20040132904
    Abstract: Disclosed are novel polymers derivatized with at least one —NOx group per 1200 atomic mass unit of the polymer. X is one or two. In one embodiment, the polymer is an S-nitrosylated polymer and is prepared by reacting a polythiolated polymer with a nitrosylating agent under conditions suitable for nitrosylating free thiol groups. The polymers of the present invention can be used to coat medical devices to deliver nitric oxide in vivo to treatment sites.
    Type: Application
    Filed: September 23, 2003
    Publication date: July 8, 2004
    Applicant: Duke University
    Inventors: Jonathan S. Stamler, Eric J. Toone, Richard S. Stack