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. 14, 2015
Filed:
May. 10, 2012
Applicants:
Mehdi Razavi, Austin, TX (US);
Christopher Alexander Arevalos, Houston, TX (US);
Maurice Alan Brewer, Houston, TX (US);
Inventors:
Mehdi Razavi, Austin, TX (US);
Christopher Alexander Arevalos, Houston, TX (US);
Maurice Alan Brewer, Houston, TX (US);
Assignee:
TEXAS HEART INSTITUTE, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/00 (2006.01); A61B 5/04 (2006.01); A61B 5/02 (2006.01); A61B 5/053 (2006.01); A61M 25/06 (2006.01);
U.S. Cl.
CPC ...
A61B 5/6885 (2013.01); A61B 5/053 (2013.01); A61B 5/6852 (2013.01); A61M 25/0662 (2013.01);
Abstract
An introducer comprise a sheath for introducing a catheter into a blood vessel, a plurality of electrodes on the sheath, and an impedance assessment unit provided on the sheath and connected to the electrodes. The impedance assessment unit fixes one of a current or voltage across a first pair of the electrodes and measures the other of the current or voltage across a second pair of electrodes.