Patents by Inventor Alex Khairkhahan

Alex 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).

  • Patent number: 8308765
    Abstract: Apparatus and methods for positioning and securing anchors are adapted to be delivered and implanted into or upon tissue, particularly tissue within the gastrointestinal system of a patient. The anchor is adapted to slide uni-directionally over suture such that a tissue plication may be cinched between anchors. A locking mechanism either within the anchor itself of positioned proximally of the anchor may allow for the uni-directional translation while enabling the anchor to be locked onto the suture if the anchor is pulled, pushed, or otherwise urged in the opposite direction along the suture. This unidirectional anchor locking mechanism facilitates the cinching of the tissue plication between the anchors and it may be utilized in one or several anchors in cinching a tissue fold.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: November 13, 2012
    Assignee: USGI Medical, Inc.
    Inventors: Vahid Saadat, Tracy D. Maahs, Richard C. Ewers, Marvin C. Elmers, Jesus Flores, Alex Khairkhahan, Ruey-Feng Peh, Cang C. Lam
  • Publication number: 20120197388
    Abstract: Implants, implant systems, and methods for treatment of mitral valve regurgitation and other valve diseases generally include a coaptation assist body which remains within the blood flow path as the leaflets of the valve move, the valve bodies often being relatively thin, elongate (along the blood flow path), and/or conformable structures which extend laterally from commissure to commissure, allowing the native leaflets to engage and seal against the large, opposed surfaces on either side of the valve body during the heart cycle phase when the ventricle contracts to empty that chamber of blood, and allows blood to pass around the valve body so that blood flows from the atrium to the ventricle during the filling phase of the heart cycle. Separate deployment of independent anchors near each of the commissures may facilitate positioning and support of an exemplary triangular valve body, with a third anchor being deployed in the ventricle.
    Type: Application
    Filed: May 3, 2011
    Publication date: August 2, 2012
    Inventors: Alex Khairkhahan, Michael D. Lesh
  • Patent number: 8206417
    Abstract: Apparatus and methods for optimizing anchoring force are described herein. In securing tissue folds, over-compression of the tissue directly underlying the anchors is avoided by utilizing tissue anchors having expandable arms configured to minimize contact area between the anchor and tissue. When the anchor is in its expanded configuration, a load is applied to the anchor until it is optimally configured to accommodate a range of deflections while the anchor itself exerts a substantially constant force against the tissue. Various devices, e.g., stops, spring members, fuses, strain gauges, etc., can be used to indicate when the anchor has been deflected to a predetermined level within the optimal range. Moreover, other factors to affect the anchor characteristics include, e.g., varying the number of arms or struts of the anchor, positioning of the arms, configuration of the arms, the length of the collars, etc.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: June 26, 2012
    Assignee: USGI Medical Inc.
    Inventors: Tracy D. Maahs, Richard C. Ewers, Vahid Saadat, Alex Khairkhahan, Kenneth J. Michlitsch
  • Patent number: 8057511
    Abstract: Apparatus and methods for positioning and securing anchors are disclosed herein. The anchors are adapted to be delivered and implanted into or upon tissue, particularly tissue within the gastrointestinal system of a patient. The anchor is adapted to slide uni-directionally over suture such that a tissue plication may be cinched between anchors. A locking mechanism either within the anchor itself of positioned proximally of the anchor may allow for the uni-directional translation while enabling the anchor to be locked onto the suture if the anchor is pulled, pushed, or otherwise urged in the opposite direction along the suture. This uni-directional anchor locking mechanism facilitates the cinching of the tissue plication between the anchors and it may be utilized in one or several anchors in cinching a tissue fold.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: November 15, 2011
    Assignee: USGI Medical, Inc.
    Inventors: Jesus Flores, Richard C. Ewers, Tracy D. Maahs, Alex Khairkhahan, Ruey-Feng Peh, Vahid Saadat
  • Publication number: 20050277981
    Abstract: Apparatus and methods for optimizing anchoring force are described herein. In securing tissue folds, over-compression of the tissue directly underlying the anchors is avoided by utilizing tissue anchors having expandable arms configured to minimize contact area between the anchor and tissue. When the anchor is in its expanded configuration, a load is applied to the anchor until it is optimally configured to accommodate a range of deflections while the anchor itself exerts a substantially constant force against the tissue. Various devices, e.g., stops, spring members, fuses, strain gauges, etc., can be used to indicate when the anchor has been deflected to a predetermined level within the optimal range. Moreover, other factors to affect the anchor characteristics include, e.g., varying the number of arms or struts of the anchor, positioning of the arms, configuration of the arms, the length of the collars, etc.
    Type: Application
    Filed: June 9, 2004
    Publication date: December 15, 2005
    Applicant: USGI Medical Inc.
    Inventors: Tracy Maahs, Richard Ewers, Vahid Saadat, Alex Khairkhahan, Kenneth Michlitsch
  • Publication number: 20050277983
    Abstract: Systems for optimizing anchoring force are described herein. In securing tissue folds, over-compression of the tissue directly underlying the anchors is avoided by utilizing tissue anchors having expandable arms configured to minimize contact area between the anchor and tissue. When the anchor is in its expanded configuration, a load is applied to the anchor until it is optimally configured to accommodate a range of deflections while the anchor itself exerts a substantially constant force against the tissue. Various devices, e.g., stops, spring members, fuses, strain gauges, etc., can be used to indicate when the anchor has been deflected to a predetermined level within the optimal range. Moreover, other factors to affect the anchor characteristics include, e.g., varying the number of arms or struts of the anchor, positioning of the arms, configuration of the arms, the length of the collars, etc.
    Type: Application
    Filed: June 9, 2004
    Publication date: December 15, 2005
    Applicant: USGI Medical INC.
    Inventors: Vahid Saadat, Richard Ewers, Tracy Maahs, Alex Khairkhahan, Kenneth Michlitsch
  • Publication number: 20050251207
    Abstract: Apparatus and methods for positioning and securing anchors are disclosed herein. The anchors are adapted to be delivered and implanted into or upon tissue, particularly tissue within the gastrointestinal system of a patient. The anchor is adapted to slide uni-directionally over suture such that a tissue plication may be cinched between anchors. A locking mechanism either within the anchor itself of positioned proximally of the anchor may allow for the uni-directional translation while enabling the anchor to be locked onto the suture if the anchor is pulled, pushed, or otherwise urged in the opposite direction along the suture. This uni-directional anchor locking mechanism facilitates the cinching of the tissue plication between the anchors and it may be utilized in one or several anchors in cinching a tissue fold.
    Type: Application
    Filed: May 7, 2004
    Publication date: November 10, 2005
    Inventors: Jesus Flores, Richard Ewers, Tracy Maahs, Alex Khairkhahan, Ruey-Feng Peh, Vahid Saadat
  • Publication number: 20050251205
    Abstract: Apparatus and methods for positioning and securing anchors are disclosed herein. The anchors are adapted to be delivered and implanted into or upon tissue, particularly tissue within the gastrointestinal system of a patient. The anchor is adapted to slide uni-directionally over suture such that a tissue plication may be cinched between anchors. A locking mechanism either within the anchor itself of positioned proximally of the anchor may allow for the uni-directional translation while enabling the anchor to be locked onto the suture if the anchor is pulled, pushed, or otherwise urged in the opposite direction along the suture. This uni-directional anchor locking mechanism facilitates the cinching of the tissue plication between the anchors and it may be utilized in one or several anchors in cinching a tissue fold.
    Type: Application
    Filed: May 7, 2004
    Publication date: November 10, 2005
    Applicant: USGI Medical Inc.
    Inventors: Richard Ewers, Tracy Maahs, Jesus Flores, Alex Khairkhahan, Ruey-Feng Peh, Vahid Saadat
  • Publication number: 20050251157
    Abstract: Apparatus and methods for positioning and securing anchors are disclosed herein. The anchors are adapted to be delivered and implanted into or upon tissue, particularly tissue within the gastrointestinal system of a patient. The anchor is adapted to slide uni-directionally over suture such that a tissue plication may be cinched between anchors. A locking mechanism either within the anchor itself of positioned proximally of the anchor may allow for the uni-directional translation while enabling the anchor to be locked onto the suture if the anchor is pulled, pushed, or otherwise urged in the opposite direction along the suture. This unidirectional anchor locking mechanism facilitates the cinching of the tissue plication between the anchors and it may be utilized in one or several anchors in cinching a tissue fold.
    Type: Application
    Filed: May 7, 2004
    Publication date: November 10, 2005
    Inventors: Vahid Saadat, Tracy Maahs, Richard Ewers, Marvin Elmers, Jesus Flores, Alex Khairkhahan, Ruey-Feng Peh, Cang Lam
  • Publication number: 20050251206
    Abstract: Apparatus and methods for positioning and securing anchors are disclosed herein. The anchors are adapted to be delivered and implanted into or upon tissue, particularly tissue within the gastrointestinal system of a patient. The anchor is adapted to slide uni-directionally over suture such that a tissue plication may be cinched between anchors. A locking mechanism either within the anchor itself of positioned proximally of the anchor may allow for the uni-directional translation while enabling the anchor to be locked onto the suture if the anchor is pulled, pushed, or otherwise urged in the opposite direction along the suture. This uni-directional anchor locking mechanism facilitates the cinching of the tissue plication between the anchors and it may be utilized in one or several anchors in cinching a tissue fold.
    Type: Application
    Filed: May 7, 2004
    Publication date: November 10, 2005
    Inventors: Tracy Maahs, Richard Ewers, Jesus Flores, Alex Khairkhahan, Ruey-Feng Peh, Vahid Saadat, Cang Lam