Patents by Inventor Byron C. Shen

Byron C. Shen 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: 8034369
    Abstract: The invention provides a controlled release bioactive agent delivery device for treatment of an eye that includes a body member having a direction of extension, a longitudinal axis along the direction of extension, and a proximal end and a distal end, wherein at least a portion of the body member deviates from the direction of extension, and a polymeric coated composition in contact with a surface of the body member, the polymeric coated composition including a first polymer, a second polymer, and a bioactive agent. The first polymer and the second polymer are hydrophobic, and the body member has a length such that, upon placement of the device at an implantation site within a posterior segment of an eye, the device does not enter a central visual field of the eye. The invention also provides methods method of delivering bioactive agent to a posterior region of an eye.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: October 11, 2011
    Assignee: Surmodics, Inc.
    Inventors: Aron B. Anderson, Laurie R. Lawin, Byron C. Shen, Eugene de Juan, Signe E. Varner, Ralph A. Chappa
  • Patent number: 8021680
    Abstract: The invention provides a controlled release bioactive agent delivery device that includes a body member having a direction of extension, a longitudinal axis along the direction of extension, and a proximal end and a distal end, wherein at least a portion of the body member deviates from the direction of extension, and a polymeric coated composition in contact with the body member, the polymeric coated composition including a first polymer, a second polymer, and a bioactive agent, wherein the first polymer comprises polyalkyl(meth)acrylate, aromatic poly(meth)acrylate, or a combination of polyalkyl(meth)acrylate and aromatic poly(meth)acrylate, and wherein the second polymer comprises poly(ethylene-co-vinyl acetate). The invention also provides methods of delivering a bioactive agent to a patient in a controlled release manner, as well as methods of making a controlled release bioactive agent delivery device.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: September 20, 2011
    Assignee: Surmodics, Inc.
    Inventors: Aron B. Anderson, Laurie R. Lawin, Byron C. Shen, Eugene de Juan, Signe E. Varner, Ralph A. Chappa
  • Patent number: 7976862
    Abstract: The invention provides implantable sustained release bioactive agent delivery devices that include a body member having a direction of extension, a longitudinal axis along the direction of extension, and a proximal end and a distal end, wherein at least a portion of the body member deviates from the direction of extension; and a polymeric coated composition in contact with a surface of the body member, the polymeric coated composition including a first polymer, a second polymer, and a bioactive agent. The polymeric coated composition is formulated to provide controlled release of bioactive agent over time when introduced into physiological conditions. Methods of preparing implantable devices configured and formulated to provide controlled release of bioactive agent are also provided.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: July 12, 2011
    Assignee: Surmodics, Inc.
    Inventors: Aron B. Anderson, Laurie R. Lawin, Byron C. Shen, Eugene de Juan, Signe E. Varner, Ralph A. Chappa
  • Patent number: 7824704
    Abstract: The invention provides retrievable devices for sustained delivery of bioactive agent to a site within a patient, the devices including a body member having a direction of extension, a longitudinal axis along the direction of extension, and a proximal end and a distal end, wherein at least a portion of the body member deviates from the direction of extension; a cap at the proximal end of the body member; and a polymeric coated composition in contact with a surface of the body member, the polymeric coated composition including a first polymer, a second polymer, and a bioactive agent.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: November 2, 2010
    Assignee: Surmodics, Inc.
    Inventors: Aron B. Anderson, Laurie R. Lawin, Byron C. Shen, Eugene de Juan, Signe E. Varner, Ralph A. Chappa