Patents by Inventor Ralf Igelhorst

Ralf Igelhorst 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).

  • Analytical configuration for monitoring xenon-containing anaesthetic gas
    Patent number: 6236041
    Abstract: An anesthesia system has ventilation gas supply flow structure for supplying ventilation gas to a patient. Structure is provided for the exhaled gas and for recycling the anesthetic gas-containing gas. The system uses a mass spectrometer connected to these flow structures to measure the content of at least one gas component in the gases and to control the flow through at least one of the flow structures in accordance with at least one measured value of the gas content.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: May 22, 2001
    Assignee: Messer Griesheim GmbH
    Inventors: Andreas Donnerhack, Ralf Igelhorst, Peter Neu, Renate Schmidt
  • Treatment chamber for performing therapeutic procedures
    Patent number: 5172687
    Abstract: A temperable treatment chamber for performing therapeutic procedures for patients includes a gas supply unit located outside of the chamber for a breathable gas with at least one inhalation site opening into the patient treatment chamber. An activation device is located inside the chamber for controlling the supply of the breathable gas by the patient.
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: December 22, 1992
    Assignee: Messer Griesheim GmbH
    Inventors: Andreas Donnerhack, Ralf Igelhorst, Klemens Thoma