Patents by Inventor Khoi A. Le

Khoi A. Le 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: 11026789
    Abstract: A delivery device for an implantable medical device having a retention member at an end thereof may include a shaft extending in a longitudinal direction and defining a longitudinal axis, an elongated sheath surrounding a longitudinal portion of the shaft, a compartment defined inside the sheath and adapted to receive the medical device in an assembled condition, a retainer positioned at one end of the compartment, and an energy storage element positioned on the longitudinal portion of the shaft and configured to be radially compressed by the medical device when the elongated sheath covers the compartment containing the medical device. The sheath may be slidable relative to the shaft in the longitudinal direction. The retainer may include a recess adapted to receive the retention member of the medical device in the assembled condition.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: June 8, 2021
    Assignee: St. Jude Medical, Cardiology Division, Inc.
    Inventors: Valerie J. Glazier, Ralph Joseph Thomas, Khoi A. Le
  • Patent number: 10758351
    Abstract: A delivery device for a collapsible prosthetic heart valve includes an operating handle and a catheter assembly. The operating handle may include a housing defining a movement space therein, a carriage assembly moveable in a longitudinal direction within the movement space, a deployment actuator coupled to the housing and rotatable relative to the housing, and a coupling assembly rotationally fixed to the deployment actuator. The catheter assembly may include a first shaft around which a compartment is defined and a distal sheath operatively connected to the carriage assembly. Movement of the carriage assembly in the longitudinal direction in the movement space may move the distal sheath between the closed condition and the open condition. The coupling assembly may have an engaged position in which rotation of the deployment actuator moves the carriage assembly, and a disengaged position in which rotation of the deployment actuator does not move the carriage assembly.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: September 1, 2020
    Assignee: St. Jude Medical, Cardiology Division, Inc.
    Inventors: Benjamin E. Morris, Eric E. Bielefeld, Gregory R. Furnish, Ralph Joseph Thomas, Khoi A. Le, Bradley Charles Knippel, Valerie J. Glazier
  • Publication number: 20180200057
    Abstract: A delivery device for an implantable medical device having a retention member at an end thereof may include a shaft extending in a longitudinal direction and defining a longitudinal axis, an elongated sheath surrounding a longitudinal portion of the shaft, a compartment defined inside the sheath and adapted to receive the medical device in an assembled condition, a retainer positioned at one end of the compartment, and an energy storage element positioned on the longitudinal portion of the shaft and configured to be radially compressed by the medical device when the elongated sheath covers the compartment containing the medical device. The sheath may be slidable relative to the shaft in the longitudinal direction. The retainer may include a recess adapted to receive the retention member of the medical device in the assembled condition.
    Type: Application
    Filed: March 14, 2018
    Publication date: July 19, 2018
    Applicant: St. Jude Medical, Cardiology Division, Inc.
    Inventors: Valerie J. Glazier, Ralph Joseph Thomas, Khoi A. Le
  • Publication number: 20180078369
    Abstract: A delivery device for a collapsible prosthetic heart valve includes an operating handle and a catheter assembly. The operating handle may include a housing defining a movement space therein, a carriage assembly moveable in a longitudinal direction within the movement space, a deployment actuator coupled to the housing and rotatable relative to the housing, and a coupling assembly rotationally fixed to the deployment actuator. The catheter assembly may include a first shaft around which a compartment is defined and a distal sheath operatively connected to the carriage assembly. Movement of the carriage assembly in the longitudinal direction in the movement space may move the distal sheath between the closed condition and the open condition. The coupling assembly may have an engaged position in which rotation of the deployment actuator moves the carriage assembly, and a disengaged position in which rotation of the deployment actuator does not move the carriage assembly.
    Type: Application
    Filed: November 28, 2017
    Publication date: March 22, 2018
    Applicant: St. Jude Medical, Cardiology Division, Inc.
    Inventors: Benjamin E. Morris, Eric E. Bielefeld, Gregory R. Furnish, Ralph Joseph Thomas, Khoi A. Le, Bradley Charles Knippel, Valerie J. Glazier