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:
Feb. 03, 2026
Filed:
Mar. 23, 2020
University of Pittsburgh—of the Commonwealth System of Higher Education, Pittsburgh, PA (US);
Upmc, Pittsburgh, PA (US);
David Turer, Pittsburgh, PA (US);
William W. Clark, Wexford, PA (US);
April Lawrence, Pittsburgh, PA (US);
Ehsan Qaium, Pittsburgh, PA (US);
Joseph Peter Rubin, Pittsburgh, PA (US);
Cameron Dezfulian, Pittsburgh, PA (US);
University of Pittsburgh—Of the Commonwealth System of Higher Education, Pittsburgh, PA (US);
UPMC, Pittsburgh, PA (US);
Abstract
Described herein are sensing cannula systems that include a surgical instrument, a detection unit, and a conductive pad having a reference electrode and configured to be placed on the patient at a location outside the patient's body. The surgical instrument can include a cannula (such as a fat grafting cannula) having an electrically conductive distal tip and electrical insulation covering the cannula proximally from the distal tip, wherein the distal tip comprises a first electrode. The detection unit can include electrical circuitry that is electrically coupled to the surgical instrument and the conductive pad and operable to measure an electrical impedance between the first electrode and the reference electrode to determine what type of tissue the distal tip is in.