Patents by Inventor Alex Grafov

Alex Grafov 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: 10034751
    Abstract: A delivery system for an implantable medical device having at least one retention member at an end thereof includes a shaft extending in a longitudinal direction. An elongated sheath surrounds the shaft. The sheath is slidable relative to the shaft in the longitudinal direction. A space is defined inside of the sheath and is adapted to receive the medical device in an assembled or collapsed condition. A retainer is positioned at a first end of the space. At least one recess is provided in the retainer and is adapted to receive the retention member of the medical device in the assembled condition. A selectively activable member is disposed in the compartment between the longitudinal shaft and the medical device. When in an activated state, the member expands radially relative to the shaft, thereby urging the retention member to disengage from the recess.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: July 31, 2018
    Assignee: St. Jude Medical, Cardiology Division, Inc.
    Inventors: Valerie J. Glazier, Huisun Wang, Alex Grafov
  • Patent number: 9603732
    Abstract: The invention provides for intra-luminal stents, especially stent having controlled fracture connection, as well as, methods of making and using the same. In one embodiment, a stent for implantation into a vessel has a plurality of annular segments collectively forming tubular shape, characterized by at least first and second adjacent annular segments each defined by a plurality of struts and at least one joint interconnecting respective struts of the first and second segments on a non-permanent basis.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: March 28, 2017
    Assignee: Covidien LP
    Inventors: Jianlu Ma, Ott Khouengboua, Alex Grafov
  • Publication number: 20160256273
    Abstract: A delivery system for an implantable medical device having at least one retention member at an end thereof includes a shaft extending in a longitudinal direction. An elongated sheath surrounds the shaft. The sheath is slidable relative to the shaft in the longitudinal direction. A space is defined inside of the sheath and is adapted to receive the medical device in an assembled or collapsed condition. A retainer is positioned at a first end of the space. At least one recess is provided in the retainer and is adapted to receive the retention member of the medical device in the assembled condition. A selectively activable member is disposed in the compartment between the longitudinal shaft and the medical device. When in an activated state, the member expands radially relative to the shaft, thereby urging the retention member to disengage from the recess.
    Type: Application
    Filed: May 12, 2016
    Publication date: September 8, 2016
    Applicant: St. Jude Medical, Cardiology Division, Inc.
    Inventors: Valerie J. Glazier, Huisun Wang, Alex Grafov
  • Patent number: 9339385
    Abstract: A delivery system for an implantable medical device having at least one retention member at an end thereof includes a shaft extending in a longitudinal direction. An elongated sheath surrounds the shaft. The sheath is slidable relative to the shaft in the longitudinal direction. A space is defined inside of the sheath and is adapted to receive the medical device in an assembled or collapsed condition. A retainer is positioned at a first end of the space. At least one recess is provided in the retainer and is adapted to receive the retention member of the medical device in the assembled condition. A selectively activable member is disposed in the compartment between the longitudinal shaft and the medical device. When in an activated state, the member expands radially relative to the shaft, thereby urging the retention member to disengage from the recess.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: May 17, 2016
    Assignee: St. Jude Medical, Cardiology Division, Inc.
    Inventors: Valerie J. Glazier, Huisun Wang, Alex Grafov
  • Patent number: 9119717
    Abstract: A delivery device for an implantable medical device having at least one retention member at an end thereof includes a shaft extending in a longitudinal direction, an elongated sheath surrounding a longitudinal portion of the shaft, a compartment defined inside of the sheath and adapted to receive the medical device in an assembled condition, a retainer positioned at one end of the compartment, and at least one acceptance in the retainer adapted to receive the retention member of the medical device in the assembled condition. The sheath is slidable relative to the shaft in the longitudinal direction to uncover and deploy the medical device. The retainer may be rotatable relative to the shaft to reduce torsional forces in the medical device during delivery and deployment. The retainer may have at least one recess facing the compartment for receiving a strut at an end of a stent of the medical device.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: September 1, 2015
    Assignee: St. Jude Medical, Inc.
    Inventors: Huisun Wang, Valerie J. Glazier, Alex Grafov
  • Publication number: 20150230952
    Abstract: The invention provides for intra-luminal stents, especially stent having controlled fracture connection, as well as, methods of making and using the same. In one embodiment, a stent for implantation into a vessel has a plurality of annular segments collectively forming tubular shape, characterized by at least first and second adjacent annular segments each defined by a plurality of struts and at least one joint interconnecting respective struts of the first and second segments on a non-permanent basis.
    Type: Application
    Filed: February 23, 2015
    Publication date: August 20, 2015
    Inventors: Jianlu Ma, Ott Khouengboua, Alex Grafov
  • Patent number: 8961585
    Abstract: The invention provides for intra-luminal stents, especially stent having controlled fracture connection, as well as, methods of making and using the same. In one embodiment, a stent for implantation into a vessel has a plurality of annular segments collectively forming tubular shape, characterized by at least first and second adjacent annular segments each defined by a plurality of struts and at least one joint interconnecting respective struts of the first and second segments on a non-permanent basis.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: February 24, 2015
    Assignee: Covidien LP
    Inventors: Jianlu Ma, Ott Khouengboua, Alex Grafov
  • Publication number: 20140257457
    Abstract: A delivery system for an implantable medical device having at least one retention member at an end thereof includes a shaft extending in a longitudinal direction. An elongated sheath surrounds the shaft. The sheath is slidable relative to the shaft in the longitudinal direction. A space is defined inside of the sheath and is adapted to receive the medical device in an assembled or collapsed condition. A retainer is positioned at a first end of the space. At least one recess is provided in the retainer and is adapted to receive the retention member of the medical device in the assembled condition. A selectively activable member is disposed in the compartment between the longitudinal shaft and the medical device. When in an activated state, the member expands radially relative to the shaft, thereby urging the retention member to disengage from the recess.
    Type: Application
    Filed: March 6, 2014
    Publication date: September 11, 2014
    Applicant: St. Jude Medical, Cardiology Division, Inc.
    Inventors: Valerie J. Glazier, Huisun Wang, Alex Grafov
  • Publication number: 20120078350
    Abstract: A delivery device for an implantable medical device having at least one retention member at an end thereof includes a shaft extending in a longitudinal direction, an elongated sheath surrounding a longitudinal portion of the shaft, a compartment defined inside of the sheath and adapted to receive the medical device in an assembled condition, a retainer positioned at one end of the compartment, and at least one acceptance in the retainer adapted to receive the retention member of the medical device in the assembled condition. The sheath is slidable relative to the shaft in the longitudinal direction to uncover and deploy the medical device. The retainer may be rotatable relative to the shaft to reduce torsional forces in the medical device during delivery and deployment. The retainer may have at least one recess facing the compartment for receiving a strut at an end of a stent of the medical device.
    Type: Application
    Filed: July 12, 2011
    Publication date: March 29, 2012
    Applicant: ST. JUDE MEDICAL, INC.
    Inventors: Huisun Wang, Valerie J. Glazier, Alex Grafov
  • Publication number: 20120065571
    Abstract: A gastrointestinal device for implanting within a patient's gastrointestinal tract includes first and second expandable anchoring rings configured to be disposed on either side of a patient's pylorus. The first expandable anchoring ring has a collapsed configuration and an expanded configuration, wherein in the expanded configuration the first expandable anchoring ring has a diameter larger than a maximum opening diameter of the pylorus. The second expandable anchoring ring also has a collapsed configuration and an expanded configuration, wherein in the expanded configuration the second expandable anchoring ring has a diameter larger than a maximum opening diameter of the pylorus. An intestinal bypass sleeve couples the first expandable anchoring ring and the second expandable anchoring ring, so as to allow a distance between the anchoring rings to exceed a width of the pylorus.
    Type: Application
    Filed: November 17, 2011
    Publication date: March 15, 2012
    Applicant: MetaModix, Inc.
    Inventors: Paul J. Thompson, Kedar R. Belhe, Alex Grafov
  • Publication number: 20090036970
    Abstract: The invention provides for intra-luminal stents, especially stent having controlled fracture connection, as well as, methods of making and using the same. In one embodiment, a stent for implantation into a vessel has a plurality of annular segments collectively forming tubular shape, characterized by at least first and second adjacent annular segments each defined by a plurality of struts and at least one joint interconnecting respective struts of the first and second segments on a non-permanent basis.
    Type: Application
    Filed: April 25, 2006
    Publication date: February 5, 2009
    Applicant: Ev3, Inc
    Inventors: Jianlu Ma, Ott Khouengboua, Alex Grafov
  • Publication number: 20080312664
    Abstract: A medical device is disclosed for tissue, body lumen and/or cavity closure inside a body of a patient. In one particular application, the medical device can be used for minimally invasive access and closure of a left atrial appendage of the heart. The medical device generally includes a tool used for grasping the appendage, a closure member, and at least one tool to deploy, control, and position the closure member for closing the appendage. The device can also include an expander tool for expanding the working area around the left atrial appendage to improve visibility during the procedure. In other embodiments, the medical device may include other tools, for example an imaging tool for viewing the target area and/or other tools that are considered useful in a left atrial appendage closure procedure.
    Type: Application
    Filed: May 12, 2008
    Publication date: December 18, 2008
    Applicant: EPITEK, INC.
    Inventors: Earl Bardsley, Jianlu Ma, Jean Paul Rasschaert, Thomas J. McEvoy, Dave Johnson, Alex Grafov, Anthony Huynh, Rob Swain