Patents by Inventor Michael Moellmann

Michael Moellmann 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).

  • Device for introducing a catheter into a body cavity
    Patent number: 5630802
    Abstract: A catheter for spinal anesthesia has a needle arranged therein. The length of the needle is smaller than the length of the catheter. The rear end of the needle is connected to a handling thread for pulling the needle out of the catheter towards the proximal end. The needle is designed as a hollow needle with a lateral opening. When advancing the tip of the needle into the subarachnoid space, liquor flows through the opening into the catheter, allowing for verification of successful puncture. During puncture of the dura with the tip of the needle, the puncture hole is widened by the front end of the catheter so that the catheter fills the puncture hole completely. After puncture, the needle is withdrawn by pulling the handling thread.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: May 20, 1997
    Assignee: B. Braun Melsungen AG
    Inventors: Michael Moellmann, Kevin P. Woehr