Patents by Inventor Alexander K. Khairkhahan

Alexander K. Khairkhahan 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).

  • Publication number: 20120065662
    Abstract: A device and method for obliterating or occluding a body cavity or passageway, in particular, the left atrial appendage of a patient's heart. The procedure can be carried out intraoperatively, but is preferably carried out percutaneously by use of a delivery catheter to position an occluding device adjacent a patient's left atrial appendage. The occluding device may prevent the passage of embolic or other material to or from the left atrial appendage by volumetrically filling the appendage, closing the opening of the appendage with an occluding member, or pulling the tissue around the opening of the appendage together and fixing it in a closed state.
    Type: Application
    Filed: November 18, 2011
    Publication date: March 15, 2012
    Applicant: ATRITECH, INC.
    Inventors: Erik J. van der Burg, Dino DeCicco, Andrew G.C. Frazier, Alexander K. Khairkhahan, Marc S. Kreidler, Michael D. Lesh, Chad C. Roue
  • Publication number: 20120035643
    Abstract: Disclosed is an adjustable occlusion device for use in a body lumen such as the left atrial appendage. The occlusion device is removably carried by a deployment catheter. The device may be enlarged or reduced to facilitate optimal placement or removal. Methods are also disclosed.
    Type: Application
    Filed: October 17, 2011
    Publication date: February 9, 2012
    Applicant: ATRITECH, INC.
    Inventors: Alexander K. Khairkhahan, Andrew G.C. Frazier, Alan R. Klenk, Marc S. Kreidler, Stewart M. Kume, Darrell H. Ogi, Chad C. Roue, Erik J. van der Burg, Dino DeCicco, Michael D. Lesh
  • Patent number: 8080032
    Abstract: A device and method for obliterating or occluding a body cavity or passageway, in particular, the left atrial appendage of a patient's heart. The procedure can be carried out intraoperatively, but is preferably carried out percutaneously by use of a delivery catheter to position an occluding device adjacent a patient's left atrial appendage. The occluding device may prevent the passage of embolic or other material to or from the left atrial appendage by volumetrically filling the appendage, closing the opening of the appendage with an occluding member, or pulling the tissue around the opening of the appendage together and fixing it in a closed state.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: December 20, 2011
    Assignee: Atritech, Inc.
    Inventors: Erik J. van der Burg, Dino De Cicco, Andrew G. C. Frazier, Alexander K. Khairkhahan, Marc S. Kreidler, Michael D. Lesh, Chad C. Roue
  • Patent number: 8043329
    Abstract: Disclosed is an adjustable occlusion device for use in a body lumen such as the left atrial appendage. The occlusion device is removably carried by a deployment catheter. The device may be enlarged or reduced to facilitate optimal placement or removal. Methods are also disclosed.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: October 25, 2011
    Assignee: Atritech, Inc.
    Inventors: Alexander K. Khairkhahan, Andrew G. C. Frazier, Alan R. Klenk, Marc S. Kreidler, Stewart M. Kume, Darrell H. Ogi, Chad C. Roue, Erik J. van der Burg
  • Publication number: 20100234885
    Abstract: A patent foramen ovale closure device, method of delivering and a delivery system are provided. The device may include a closure device releasably connectable to an actuator. The device may include a proximal segment, an intermediate segment and a distal segment. When delivered, the proximal segment and intermediate segment form a first clip-shaped portion sized and configured to be positioned over a septum secundum of the patent foramen ovale, and the intermediate segment and distal segment form a second clip-shaped portion sized and configured to be positioned over a septum primum of the patent foramen ovale.
    Type: Application
    Filed: June 1, 2010
    Publication date: September 16, 2010
    Applicant: EV3 ENDOVASCULAR, INC.
    Inventors: Andrew G.C. Frazier, Alan R. Klenk, Alexander K. Khairkhahan, Chad C. Roue, Erik J. van der Burg
  • Patent number: 7780700
    Abstract: A patent foramen ovale closure device, method of delivering and a delivery system are provided. The device may include a closure device releasably connectable to an actuator. The device may include a proximal segment, an intermediate segment and a distal segment. When delivered, the proximal segment and intermediate segment form a first clip-shaped portion sized and configured to be positioned over a septum secundum of the patent foramen ovale, and the intermediate segment and distal segment form a second clip-shaped portion sized and configured to be positioned over a septum primum of the patent foramen ovale.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: August 24, 2010
    Assignee: ev3 Endovascular, Inc
    Inventors: Andrew G. C. Frazier, Alan R. Klenk, Alexander K. Khairkhahan, Chad C. Roue, Erik J. van der Burg
  • Patent number: 7735493
    Abstract: A device for containing emboli within a left atrial appendage of a patient includes a frame that is expandable from a reduced cross section to an enlarged cross section and a slider assembly. The frame extends between a proximal hub and a distal hub, and the slider assembly is coupled to the distal hub of the frame. The slider assembly includes a guide tube that has a channel extending proximally away from the distal hub, and a nut. The nut is longitudinally moveable within the channel of the guide tube over a predetermined distance relative to the guide tube. The nut is operable to be releasably coupled with an elongate core, and movement of the nut relative to the guide tube is at least partially limited by interference between a portion of the nut and a portion of the guide tube.
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: June 15, 2010
    Assignee: Atritech, Inc.
    Inventors: Erik J. van der Burg, Alexander K. Khairkhahan, Alan R. Klenk, Chad C. Roue, Andrew G. C. Frazier
  • Patent number: 7713282
    Abstract: Disclosed is an adjustable occlusion device for use in a body lumen such as the left atrial appendage. The occlusion device is removably carried by a deployment catheter. The device may be enlarged or reduced to facilitate optimal placement or removal. Methods are also disclosed.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: May 11, 2010
    Assignee: Atritech, Inc.
    Inventors: Andrew G. C. Frazier, Alexander K. Khairkhahan, Erik J. van der Burg, Chad C. Roue, Alan R. Klenk
  • Patent number: 7597704
    Abstract: An adjustable occlusion device and methods of deploying the device, comprising an actively expandable anchor for use in customizing the fit in a body lumen such as the left atrial appendage. Some embodiments of the actively expandable anchor include a positive force expander as an adjustable occlusion device using intertwining adjustable coils, engageable helical ribbons, or threaded tubes.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: October 6, 2009
    Assignee: Atritech, Inc.
    Inventors: Andrew G. C. Frazier, Alexander K. Khairkhahan, Erik J. van der Burg, Chad C. Roue, Alan R. Klenk
  • Patent number: 7192439
    Abstract: Disclosed is an adjustable occlusion device for use in a body lumen such as the left atrial appendage. The occlusion device is removably carried by a deployment catheter. The device may be enlarged or reduced to facilitate optimal placement or removal. Methods are also disclosed.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: March 20, 2007
    Assignee: EV3 Endovascular, Inc.
    Inventors: Alexander K. Khairkhahan, Andrew G. C. Frazier, Alan R. Klenk, Marc S. Kreidler, Stewart M. Kume, Darrell H. Ogi, Chad C. Roue, Erik J. van der Burg
  • Patent number: 7152605
    Abstract: Disclosed is an adjustable occlusion device for use in a body lumen such as the left atrial appendage. The occlusion device is removably carried by a deployment catheter. The device may be enlarged or reduced to facilitate optimal placement or removal. Methods are also disclosed.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: December 26, 2006
    Assignee: ev3 Endovascular, Inc.
    Inventors: Alexander K. Khairkhahan, Andrew G. C. Frazier, Alan R. Klenk, Marc S. Kreidler, Stewart M. Kume, Darrell H. Ogi, Chad C. Roue, Erik J. van der Burg
  • Patent number: 7056294
    Abstract: Disclosed is an apparatus for facilitating access to the left atrium, and specifically the left atrial appendage. The apparatus may comprise a sheath with first and second curved sections that facilitate location of the fossa ovalis and left atrial appendage. The apparatus may further comprise tissue piercing and dilating structures. Methods are also disclosed.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: June 6, 2006
    Assignee: ev3 Sunnyvale, Inc
    Inventors: Alexander K. Khairkhahan, Andrew G. C. Frazier, Alan R. Klenk, Marc S. Kreidler, Stewart M. Kume, Darrell H. Ogi, Chad C. Roue, Erik J. van der Burg
  • Patent number: 7044134
    Abstract: An adjustable occlusion device and a method of implanting the device in a body lumen such as the left atrial appendage. The occlusion device is removably carried by a deployment catheter. The device may be enlarged or reduced to facilitate optimal placement or removal. Methods are also disclosed.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: May 16, 2006
    Assignee: ev3 Sunnyvale, Inc
    Inventors: Alexander K. Khairkhahan, Andrew G. C. Frazier, Alan R. Klenk, Marc S. Kreidler, Stewart M. Kume, Darrell H. Ogi, Chad C. Roue, Erik J. van der Burg
  • Patent number: 6994092
    Abstract: Disclosed is an occlusion device for use in a body lumen such as the left atrial appendage. The occlusion device includes an occlusion member and a plurality of tissue retention structures. The tissue retention structures inhibits movement of the device from the left atrial appendage. Methods are also disclosed.
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: February 7, 2006
    Assignee: ev3 Sunnyvale, Inc.
    Inventors: Erik J. van der Burg, Dino De Cicco, Andrew G. C. Frazier, Alexander K. Khairkhahan, Marc S. Kreidler, Michael D. Lesh, Chad C. Roue
  • Publication number: 20040230222
    Abstract: Disclosed is an occlusion device for use in a body lumen such as the left atrial appendage. The occlusion device includes an occlusion member and may also include a stabilizing member. The stabilizing member inhibits compression of the left atrial appendage, facilitating tissue in-growth onto the occlusion member. Methods are also disclosed.
    Type: Application
    Filed: January 30, 2004
    Publication date: November 18, 2004
    Inventors: Erik J. van der Burg, Dino De Cicco, Andrew G.C. Frazier, Alexander K. Khairkhahan, Marc S. Kreidler, Michael D. Lesh, Chad C. Roue
  • Publication number: 20040220596
    Abstract: A patent foramen ovale closure device, method of delivering and a delivery system are provided. The device may include a closure device releasably connectable to an actuator. The device may include a proximal segment, an intermediate segment and a distal segment. When delivered, the proximal segment and intermediate segment form a first clip-shaped portion sized and configured to be positioned over a septum secundum of the patent foramen ovale, and the intermediate segment and distal segment form a second clip-shaped portion sized and configured to be positioned over a septum primum of the patent foramen ovale.
    Type: Application
    Filed: February 4, 2004
    Publication date: November 4, 2004
    Inventors: Andrew G.C. Frazier, Alan R. Klenk, Alexander K. Khairkhahan, Chad C. Roue, Erik J. van der Burg
  • Publication number: 20040215230
    Abstract: Disclosed is an active anchor for an adjustable occlusion device for use in a body lumen such as the left atrial appendage. A positive force expander for an adjustable occlusion device is also disclosed. Methods of deploying such devices are also disclosed.
    Type: Application
    Filed: April 28, 2003
    Publication date: October 28, 2004
    Inventors: Andrew G. C. Frazier, Alexander K. Khairkhahan, Erik J. van der Burg, Chad C. Roue, Alan R. Klenk
  • Publication number: 20040098031
    Abstract: A device and method for obliterating or occluding a body cavity or passageway, in particular, the left atrial appendage of a patient's heart. The procedure can be carried out intraoperatively, but is preferably carried out percutaneously by use of a delivery catheter to position an occluding device adjacent a patient's left atrial appendage. The occluding device may prevent the passage of embolic or other material to or from the left atrial appendage by volumetrically filling the appendage, closing the opening of the appendage with an occluding member, or pulling the tissue around the opening of the appendage together and fixing it in a closed state.
    Type: Application
    Filed: September 30, 2003
    Publication date: May 20, 2004
    Inventors: Erik J. van der Burg, Dino De Cicco, Andrew G. C. Frazier, Alexander K. Khairkhahan, Marc S. Kreidler, Michael D. Lesh, Chad C. Roue
  • Publication number: 20040044361
    Abstract: Disclosed is an adjustable occlusion device for use in a body lumen such as the left atrial appendage. The occlusion device is removably carried by a deployment catheter. The device may be enlarged or reduced to facilitate optimal placement or removal. Methods are also disclosed.
    Type: Application
    Filed: April 28, 2003
    Publication date: March 4, 2004
    Inventors: Andrew G.C. Frazier, Alexander K. Khairkhahan, Erik J. van der Burg, Chad C. Roue, Alan R. Klenk
  • Publication number: 20040034366
    Abstract: Disclosed is an occlusion device for use in a body lumen such as the left atrial appendage. The occlusion device includes an occlusion member and a plurality of tissue retention structures. The tissue retention structures inhibits movement of the device from the left atrial appendage. Methods are also disclosed.
    Type: Application
    Filed: August 15, 2003
    Publication date: February 19, 2004
    Applicant: EV3 SUNNYVALE, INC., a California corporation
    Inventors: Erik J. van der Burg, Dino De Cicco, Andrew G. C. Frazier, Alexander K. Khairkhahan, Marc S. Kreidler, Michael D. Lesh, Chad C. Roue