Patents by Inventor Douglas Owen Chinn

Douglas Owen Chinn 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).

  • Publication number: 20020087152
    Abstract: Apparatus and methods are provided for placing an introducer sheath into a subcutaneous tissue region, such as a prostate, e.g., to facilitate insertion of a cryogenic probe. In one embodiment, a dilation apparatus is provided that includes an introducer sheath containing a dilator that, in turn, contains a stylet. A pointed tip of the stylet is inserted into a patient's skin and the dilator is advanced over the inserted stylet to dilate surrounding tissue. The introducer sheath is then advanced over the dilator through the tissue to provide access to a target tissue region, such as the prostate. The stylet and dilator are removed from the introducer sheath, leaving the introducer sheath in place. A cryogenic probe may be inserted into the introducer sheath, and may be coupled to a cryosurgical system, e.g., to ablate or otherwise treat the target tissue region.
    Type: Application
    Filed: January 4, 2001
    Publication date: July 4, 2002
    Applicant: Endocare, Inc.
    Inventors: Paul W. Mikus, Sanford Damasco, Douglas Owen Chinn, Gregory Lee Kelly
  • Patent number: 5647868
    Abstract: The present cryosurgical system and method accurately locates relative to a defined internal area of a living body, an ultrasonic probe and, using stereotactic guide, a series of cooling probes and temperature probes, then presents in the same visual field an integrated ultrasonic display and temperature display to assist the surgeon in accurately sculpting and limiting the field of cooling.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: July 15, 1997
    Inventor: Douglas Owen Chinn