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:
Jun. 09, 2020
Filed:
Aug. 28, 2015
Waldemar Link Gmbh & Co. KG, Hamburg, DE;
Helmut D. Link, Hamburg, DE;
Riccardo Signoretti, Jersey City, NJ (US);
Waldemar Link GmbH & Co. KG, Hamburg, DE;
Abstract
A handheld surgical tool includes a handle, an instrument shaft, and a navigation device, which includes at least one sensor unit for sensing positional data, a computing unit configured to determine a position in space based on signals of the sensor unit, at least one set key and a position memory configured to store a data set for a position upon activation of the at least one set key. A comparator is operatively connected to the position memory for comparing an actual position against a stored position in at least two different operation modes and for generation of a deviation signal, wherein operation modes differ in that a first mode is configured for a reduced comparison only which lacks at least one spatial dimension. A feedback device is provided supplied with the deviation signal and being configured to indicate direction and preferably magnitude of any deviation.