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:
Mar. 12, 2024
Filed:
Jul. 05, 2021
Karl Storz SE & Co. KG, Tuttlingen, DE;
Janosz Schneider, Tuttlingen, DE;
Jochen Stefan, Tuttlingen, DE;
Daniel Kärcher, Tuttlingen, DE;
Robin Merz, Tuttlingen, DE;
Sven Axel Grüner, Tuttlingen, DE;
Martin Blocher, Tuttlingen, DE;
Sven Schneider, Tuttlingen, DE;
Tobias Unger, Tuttlingen, DE;
Dominik Längle, Tuttlingen, DE;
Judith Holzer, Tuttlingen, DE;
Sebastian Wagner, Tuttlingen, DE;
KARL STORZ SE & Co. KG, Tuttlingen, DE;
Abstract
The invention relates to a medical instrument having an elongated shaft, a movable tool at a distal end of the shaft, a handle with a movable grip part at a proximal end of the shaft, and a force transmission element which can be moved in the longitudinal direction of the instrument and is operatively connected to the movable grip part and to the tool such that an actuation of the movable grip part is converted into a movement of the tool. The instrument has a spring assembly that is arranged on the handle and has at least one leg spring, which has at least one winding and two legs, and a pin, wherein the at least one winding extends about the pin. When the movable grip part is actuated, a force is applied to at least one of the legs of the leg spring, said force reducing the friction between the winding and the pin such that the leg spring can be rotated about the pin and the force transmission element and the tool can be moved. When a force is transmitted from the tool to the force transmission element in the longitudinal direction thereof, the leg spring cannot be rotated about the pin such that the force transmission element and the tool cannot be moved.