Patents by Inventor Michael Rehfeldt

Michael Rehfeldt 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: 6672306
    Abstract: An arrangement for supplying a medical apparatus with anesthetic is so improved that, when changing the anesthetic supply vessel (1), the new anesthetic is made available directly and, when there is a malfunction of an anesthetic metering device (2), an exchange is possible in a simple manner. The arrangement includes a supply vessel (1) for the liquid anesthetic (6), a metering device (2) for liquid anesthetic and a pin-and-socket connection (15) between the metering component (2) and a vessel receptacle (3) of a medical apparatus (4). The metering component (2) is electrically drivable and is connected to the supply vessel (1) so as to form a modular unit.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: January 6, 2004
    Assignee: Dräger Medical AG & Co. KGaA
    Inventors: Ralf-Ernst Löser, Michael Rehfeldt
  • Publication number: 20020069876
    Abstract: An arrangement for supplying a medical apparatus with anesthetic is so improved that, when changing the anesthetic supply vessel (1), the new anesthetic is made available directly and, when there is a malfunction of an anesthetic metering device (2), an exchange is possible in a simple manner. The arrangement includes a supply vessel (1) for the liquid anesthetic (6), a metering device (2) for liquid anesthetic and a pin-and-socket connection (15) between the metering component (2) and a vessel receptacle (3) of a medical apparatus (4). The metering component (2) is electrically drivable and is connected to the supply vessel (1) so as to form a modular unit.
    Type: Application
    Filed: December 10, 2001
    Publication date: June 13, 2002
    Inventors: Ralf-Ernst Loser, Michael Rehfeldt
  • Patent number: 6260550
    Abstract: A respirator with an inhalation line (5) connected to a gas supply device (2) and with an exhalation line (7) connected to an exhalation device (3), with a Y piece (8) connecting the inhalation line (5) to the exhalation line (7), and with a patient connection (9) going out from the Y piece (8). Partial rebreathing of CO2-containing exhaled air is made possible in a simple manner by providing a switchover device (4) between the inhalation line (5) and the gas supply device (2) as well as between the exhalation line (7) and the exhalation device (3). The switchover device is designed such that the flow connection is established between the inhalation line (5) and the gas supply device (2) as well as the exhalation line (7) and the exhalation device (3) in a first switching position and there is at least a flow connection between the gas supply device (2) and the exhalation line (7) in the second switching position.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: July 17, 2001
    Assignee: Dräger Medizintechnik GmbH
    Inventors: Dieter Weismann, Michael Rehfeldt