The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 21, 1998
Filed:
Jan. 16, 1996
Wolfgang Kloess, Luebeck, DE;
Christian Frahm, Luebeck, DE;
Daum GmbH, Shwerim, DE;
Abstract
A device for marking a planned guide path of a medical instrument such as a puncture needle is disclosed. The device incorporates two sources of electromagnetic radiation, such as lasers, which produce two light rays. The intersecting line of the light rays marks the guide path for the puncture needle. Deviations of the angle position of the puncture needle from the planned guide path are visible by examining the reflection of the light from the puncture needle. Different colors of light may be used with the light rays being formed in a fan-shape in a common plane. In this manner, the color of the reflected light on the surface of the puncture needle changes depending on whether the puncture needle is located at the intersection of the light rays.