Patents by Inventor Alfons Hofstetter

Alfons Hofstetter 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).

  • Use of photofrin as a radiosensitizer
    Publication number: 20010051760
    Abstract: The invention relates to the use of photofrin as a radiosensitizer in the treatment of tumorous tissue, wherein after a predetermined time interval after application of the photofrin an irradiation of the tumorous tissue with ionizing radiation is effected.
    Type: Application
    Filed: April 27, 2001
    Publication date: December 13, 2001
    Inventors: Alfons Hofstetter, Eckhart Duhmke, Moshe Schaffer, Giulio Jori, Luigi Corti
  • Interstitial laser coagulation treatment for benign prostatic hyperplasia
    Patent number: 5312392
    Abstract: A method of treating benign prostatic hyperplasia employs the steps of inserting a diffusing light guide into a prostrate lobe and providing laser power to the diffusing light guide in order to necrose surrounding tissue. The diffusing light guide can be inserted into the central or lateral prostrate lobes by inserting a needle and a trocar transperineally into the middle of the lateral lobe, removing the trocar, inserting the diffusing light guide, and monitoring the position of the needle, trocar, and diffusing light guide using ultrasound. The diffusing light guide can also be inserted into the central or lateral prostrate lobes transurethrally and positioned with the aid of an urethroscope.
    Type: Grant
    Filed: August 31, 1992
    Date of Patent: May 17, 1994
    Assignee: Messerschmitt-Boelkow-Blohm AG
    Inventors: Alfons Hofstetter, Rolf Muschter, Stefan Hessel, Frank Frank