Patents by Inventor Ronald E. Cambron

Ronald E. Cambron 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: 7989157
    Abstract: A method for processing biological tissue used in biological prostheses includes providing a tissue procurement solution formed from a phosphate buffered saline (PBS) solution and a chelating agent. The tissue is transferred from the tissue procurement solution and undergoes chemical fixation. The fixed tissue is then immersed in a series of fresh bioburden reduction process (BRP) solutions to extract phospholipids. The tissue procurement solution reduces the bioburden on the stored tissue and preserves tissue architecture by minimizing tissue swelling. The tissue procurement solution further reduces calcium from the incoming water and/or tissue, and inhibits enzymes that digest the collagen matrix. The serial immersion of the tissue in the fresh bioburden solutions ensures optimal extraction of phospholipids thereby mitigating subsequent calcification of the tissue.
    Type: Grant
    Filed: January 11, 2005
    Date of Patent: August 2, 2011
    Assignee: Medtronic, Inc.
    Inventors: Crystal M. Cunanan, Alexandro Ochoa, Ronald E. Cambron
  • Patent number: 7622276
    Abstract: A method for processing biological tissue used in biological prostheses includes providing a tissue procurement solution formed from a phosphate buffered saline (PBS) solution and a chelating agent. The tissue is transferred from the tissue procurement solution and undergoes chemical fixation. The fixed tissue is then immersed in a series of fresh bioburden reduction process (BRP) solutions to extract phospholipids. The tissue procurement solution reduces the bioburden on the stored tissue and preserves tissue architecture by minimizing tissue swelling. The tissue procurement solution further reduces calcium from the incoming water and/or tissue, and inhibits enzymes that digest the collagen matrix. The serial immersion of the tissue in the fresh bioburden solutions ensures optimal extraction of phospholipids thereby mitigating subsequent calcification of the tissue.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: November 24, 2009
    Assignee: Arbor Surgical Technologies, Inc.
    Inventors: Crystal M. Cunanan, Alexandro Ochoa, Ronald E. Cambron
  • Patent number: 4722344
    Abstract: Catheters formed from polyurethanes containing sufficient halogenated moieties in the polymer structure to make the polyurethanes radiopaque are disclosed. Such polyurethanes can be prepared by employing halogenated diols and/or halogenated diisocyanate reactants. In preferred cases, the catheters are optically transparent in addition to being radiopaque.
    Type: Grant
    Filed: May 23, 1986
    Date of Patent: February 2, 1988
    Assignee: Critikon, Inc.
    Inventors: Ronald E. Cambron, Donald J. Dempsey, Kevin M. Mills, Hartley A. Silverwood