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.

Date of Patent:
Jul. 21, 2020

Filed:

Oct. 12, 2015
Applicant:

Oslo Universitetssykehus Hf, Oslo, NO;

Inventors:

Håvard Kalvøy, Vestby, NO;

Axel Sauter, Oslo, NO;

Audun Stubhaug, Oslo, NO;

Sverre Grimnes, Oslo, NO;

Ørjan G. Martinsen, Stabekk, NO;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/053 (2006.01); A61B 5/00 (2006.01); A61B 5/06 (2006.01);
U.S. Cl.
CPC ...
A61B 5/053 (2013.01); A61B 5/0537 (2013.01); A61B 5/0538 (2013.01); A61B 5/068 (2013.01); A61B 5/4893 (2013.01); A61B 5/7264 (2013.01);
Abstract

A method is described for determining biological tissue type based on a complex impedance spectra obtained from a probe with a conducting part adjacent a tissue region of interest, wherein the impedance spectra includes data from a number of frequencies. The method may include: obtaining, from the complex impedance spectra, a first data set representative of impedance modulus values, or equivalent admittance values, at one or more frequencies, obtaining, from the complex impedance spectra, a second data set representative of impedance phase angle values, or equivalent admittance values, at one or more different frequencies, applying a first discrimination criterion to the first data set, applying a second discrimination criterion to the second data set, and thereby determining if the tissue region of interest is a tissue type characterised by the discrimination criteria.


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