Patents by Inventor Marie-Louise Summerer

Marie-Louise Summerer 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).

  • Catheter set for spinal anaesthesia
    Patent number: 4994036
    Abstract: A spinal cannula adapted for insertion into an epidural cannula that may be advanced up to the dura. In placing the end of the spinal cannula intrathecally, the dura is pierced by the spinal cannula. Then, a guide wire is advanced to that intrathecal position through the spinal cannula. After removal of the spinal cannula, a spinal catheter is advanced over the guide wire and within the epidural cannula. The epidural cannula imparts the necessary directional stability to the catheter upon its advancement and facilitates the passage through the dura already perforated by the spinal cannula.
    Type: Grant
    Filed: August 7, 1989
    Date of Patent: February 19, 1991
    Assignee: B. Braun Melsungen AG
    Inventors: Juergen Biscoping, Marie-Louise Summerer, Heinz Wiegel, Hans-Hinrich Witt