Patents by Inventor Hanh Ho

Hanh Ho 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: 7229454
    Abstract: Methods and devices for blocking orifices and occluding cavities within a patient are provided. The device in one variation comprises first and second tubular members attached to a collapsible sealing element. The device can be placed through an orifice and the collapsible sealing element can be collapsed to seal the orifice. An embolic may be introduced distal to the sealing element to occlude a cavity. The device may incorporate a locking mechanism which can be engaged to lock the sealing element into the collapsed position. The device may incorporate a valve to prevent flow through the tubular members, for example to prevent egress of the embolic from a cavity. The device can be detached to provide a permanent seal of the orifice, and can retain the embolic within the cavity. The device may be used in conjunction with a stent or other retention device to assist the sealing element in maintaining the seal.
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: June 12, 2007
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Tri Tran, Kim Nguyen, Hanh Ho, My Doan, Richard Murphy, Michael P. Wallace, Clifford Teoh
  • Publication number: 20040133222
    Abstract: Methods and devices for blocking orifices and occluding cavities within a patient are provided. The device in one variation comprises first and second tubular members attached to a collapsible sealing element. The device can be placed through an orifice and the collapsible sealing element can be collapsed to seal the orifice. An embolic may be introduced distal to the sealing element to occlude a cavity. The device may incorporate a locking mechanism which can be engaged to lock the sealing element into the collapsed position. The device may incorporate a valve to prevent flow through the tubular members, for example to prevent egress of the embolic from a cavity. The device can be detached to provide a permanent seal of the orifice, and can retain the embolic within the cavity. The device may be used in conjunction with a stent or other retention device to assist the sealing element in maintaining the seal.
    Type: Application
    Filed: January 7, 2003
    Publication date: July 8, 2004
    Applicant: Scimed Life Systems, Inc.
    Inventors: Tri Tran, Kim Nguyen, Hanh Ho, My Doan, Richard Murphy, Michael P. Wallace, Clifford Teoh
  • Publication number: 20040093014
    Abstract: A vaso-occlusive device is disclosed. The device includes a vaso-occlusive member having a coating disposed thereon. In accordance with one embodiment, the coating comprises a polyacrylic material. In accordance with another embodiment, the coating comprises a polyvinyl alcohol-based material. In accordance with other embodiments, various other materials and coatings are applied to at least a portion of a vaso-occlusive device.
    Type: Application
    Filed: April 9, 2003
    Publication date: May 13, 2004
    Inventors: Hanh Ho, Kenneth W. Quan, Clifford Teoh, Robert M. Abrams, Joseph C. Eder, Paul C. Slaikeu, Michael P. Wallace, James Barry
  • Patent number: 6723112
    Abstract: One aspect of the present invention pertains to an implantable medical device for at least partially obstructing a neck portion of a vascular aneurysm. The device includes an occlusion subassembly comprising a base section and at least one lateral protrusion fixedly attached to the base section. A therapeutic agent is disposed upon at least one portion of at least one lateral protrusion.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: April 20, 2004
    Assignee: SciMed Life Systems, Inc.
    Inventors: Hanh Ho, Kenneth W. Quan, Jr., Clifford Teoh, Robert M. Abrams, Joseph C. Eder, Paul C. Slaikeu, Michael P. Wallace, James Barry
  • Publication number: 20030171739
    Abstract: In one embodiment, a neck bridge for bridging the neck of an aneurysm includes a junction region, a number of radially extending array elements attached to the junction region, and a cover attached to one or both of the junction region and an array element. The array elements are configured to be positioned within the aneurysm after the neck bridge is deployed from a delivery device. In a second embodiment, the neck bridge includes a junction region and a braided or mesh-like structure secured to the junction region. The braided or mesh-like structure is made from an elastic material.
    Type: Application
    Filed: December 13, 2002
    Publication date: September 11, 2003
    Inventors: Richard Murphy, Michael P. Wallace, Tri Tran, Kim Nguyen, Hanh Ho, My Doan, Robert M. Abrams, Harold F. Carrison
  • Patent number: 6569179
    Abstract: One aspect of the present invention pertains to an implantable medical device for at least partially obstructing a neck portion of a vascular aneurysm. The implantable medical device includes an occlusion subassembly having a central tubular member and at least one lateral protrusion fixedly attached to the central tubular member. The lateral protrusion(s) and the central tubular member are of a size and overall flexibility to lodge at the neck portion of the vascular aneurysm. A coil is attached to the lateral protrusion.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: May 27, 2003
    Assignee: SciMed Life Systems, Inc.
    Inventors: Clifford Teoh, Hanh Ho, Kenneth W. Quan, Jr.
  • Publication number: 20020004681
    Abstract: One aspect of the present invention pertains to an implantable medical device for at least partially obstructing a neck portion of a vascular aneurysm. The implantable medical device includes an occlusion subassembly having a central tubular member and at least one lateral protrusion fixedly attached to the central tubular member. The lateral protrusion(s) and the central tubular member are of a size and overall flexibility to lodge at the neck portion of the vascular aneurysm. A coil is attached to the lateral protrusion.
    Type: Application
    Filed: August 16, 2001
    Publication date: January 10, 2002
    Inventors: Clifford Teoh, Hanh Ho, Kenneth W. Quan
  • Publication number: 20010034531
    Abstract: One aspect of the present invention pertains to an implantable medical device for at least partially obstructing a neck portion of a vascular aneurysm. The device includes an occlusion subassembly comprising a base section and at least one lateral protrusion fixedly attached to the base section. A therapeutic agent is disposed upon at least one portion of at least one lateral protrusion.
    Type: Application
    Filed: April 6, 2001
    Publication date: October 25, 2001
    Inventors: Hanh Ho, Kenneth W. Quan, Clifford Teoh, Robert M. Abrams, Joseph C. Eder, Paul C. Slaikeu, Michael P. Wallace, James Barry