Patents by Inventor Christopher P. Cheng

Christopher P. Cheng 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: 9629675
    Abstract: A hypotube based deliver system is used to position one or more elements in position for treatment within the body. The elements may include electrodes, sensors or injection ports or even anchors. The hypotubes may have pre-set shapes or are plastically deformed prior to positioning as they exit a positioning device. There are methods of providing therapy using the hypotubes including mixed mode therapies are also described.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: April 25, 2017
    Assignee: Confluent Medical Technologies, Inc.
    Inventors: Stephen J. Kleshinski, Christopher P. Cheng
  • Publication number: 20130103026
    Abstract: A hypotube based deliver system is used to position one or more elements in position for treatment within the body. The elements may include electrodes, sensors or injection ports or even anchors. The hypotubes may have pre-set shapes or are plastically deformed prior to positioning as they exit a positioning device. There are methods of providing therapy using the hypotubes including mixed mode therapies are also described.
    Type: Application
    Filed: October 19, 2012
    Publication date: April 25, 2013
    Inventors: Stephen J. KLESHINSKI, Christopher P. CHENG
  • Patent number: 8425586
    Abstract: A vascular prosthesis comprises generally tubular body placeable in contracted and expanded states and has an axial length and a circumferential dimension in the expanded state. The body includes a series of circumferential elements having first lengths. First and second connectors have connector lengths and join alternating ends of adjacent circumferential elements. The first length plus the connector lengths joined thereto equal a total circumferential length. Each connector length is between 2.5% and 25% of the total circumferential length. Adjacent circumferential elements and connectors extending therefrom are separated by a stress relief slot having a relief slot length of more than 50% and less than 95% of the total circumferential length. The stress relief slots have narrow width portions over a majority of the relief slot lengths, the narrow width portions having lateral dimensions of no greater than about 3 mm.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: April 23, 2013
    Assignee: NovoStent Corporation
    Inventors: Eric W. Leopold, Gerald Ray Martin, Eric Hsiang Yu, Alexander Arthur Lubinski, Michael C. Waldo, Christopher P. Cheng
  • Publication number: 20110218608
    Abstract: A vascular prosthesis delivery system comprises a radially self expandable vascular prosthesis and a delivery sheath with a lumen with a smaller diameter storage region and a larger diameter delivery region. A prosthesis is housed within the storage region and is movable into the delivery region for delivery at a target site within a patient. The delivery force required to move the prosthesis from the delivery region into the patient can be less than the force required to move the prosthesis from the storage region into the delivery region. In some examples, the storage region defines a tapered lumen expanding in diameter in a distal direction. In some examples, the storage and delivery regions are generally coextensive and define a tapered lumen expanding in diameter in a distal direction. A method stores a vascular prosthesis in the storage region and delivers it to a target site from the delivery region.
    Type: Application
    Filed: September 10, 2010
    Publication date: September 8, 2011
    Applicant: NovoStent Corporation
    Inventors: Christopher P. Cheng, Eric Hsiang Yu, Eric W. Leopold, Ethan A. Gilbert
  • Publication number: 20110054590
    Abstract: A vascular prosthesis comprises generally tubular body placeable in contracted and expanded states and has an axial length and a circumferential dimension in the expanded state. The body includes a series of circumferential elements having first lengths. First and second connectors have connector lengths and join alternating ends of adjacent circumferential elements. The first length plus the connector lengths joined thereto equal a total circumferential length. Each connector length is between 2.5% and 25% of the total circumferential length. Adjacent circumferential elements and connectors extending therefrom are separated by a stress relief slot having a relief slot length of more than 50% and less than 95% of the total circumferential length. The stress relief slots have narrow width portions over a majority of the relief slot lengths, the narrow width portions having lateral dimensions of no greater than about 3 mm.
    Type: Application
    Filed: August 27, 2010
    Publication date: March 3, 2011
    Applicant: NovoStent Corporation
    Inventors: Eric W. Leopold, Gerald Ray Martin, Eric Hsiang Yu, Alexander Arthur Lubinski, Michael C. Waldo, Christopher P. Cheng
  • Patent number: 4866063
    Abstract: 1-(5-Amino-7-phenyl-[1,2,4] triazolo [1,5,c]pyrimidin-8-yl)-1, 2-ethan diol, a novel glycol of a triazolopyrimidine diuretic which is a metabolite and which exhibits fewer cardiotoxic side effects than the parent compound, but with no decrease in diuretic activity. The invention further provides for compositions incorporating the metabolite, and methods of its use as well as pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: September 12, 1989
    Assignee: G. D. Searle & Co.
    Inventors: Earl G. Burton, Christopher P. Chengelis, Gerald M. Walsh
  • Patent number: D665500
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: August 14, 2012
    Assignee: NovoStent Corporation
    Inventors: Gerald Ray Martin, Stuart Huangyee Lin, Eric W. Leopold, Christopher P. Cheng, Alexander Arthur Lubinski