Patents by Inventor Richling: Bernd

Richling: Bernd 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: 5429605
    Abstract: This invention is a microballoon tipped catheter. The catheter has a shaft which is of varying flexibility with the most flexible portion towards the distal tip. The balloon, located near the distal tip of the catheter, is typically of an elastic material, is quite flexible in its own right when deflated, and is quite small. The catheter shaft has a main lumen extending from the proximal end to the distal end so to allow the use of a guidewire in placing the catheter's distal tip in remote regions of the vasculature and for delivery of drugs, diagnostics, and other biologics to those regions. The catheter shaft has a wall that desirably is of a multilayer construction. The wall preferably includes an independent lumen, which may be formed from a small diameter tubing that is placed between layers of the wall, for the inflation and deflation of the microballoon. The inflation lumen proceeds from the proximal end of the catheter and terminates near the distal end of the catheter but within the microballoon.
    Type: Grant
    Filed: January 26, 1994
    Date of Patent: July 4, 1995
    Assignee: Target Therapeutics, Inc.
    Inventors: Richling: Bernd, Ivan Sepetka, Uriel H. Chee, Liem Ho, Phong Pham