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:
Jan. 02, 2018
Filed:
Dec. 30, 2009
Saurav Paul, Minneapolis, MN (US);
Troy T. Tegg, Elk River, MN (US);
Reed R. Heimbecher, Hamel, MN (US);
Richard E. Stehr, Stillwater, MN (US);
Riki Chou Thao, Maplewood, MN (US);
Saurav Paul, Minneapolis, MN (US);
Troy T. Tegg, Elk River, MN (US);
Reed R. Heimbecher, Hamel, MN (US);
Richard E. Stehr, Stillwater, MN (US);
Riki Chou Thao, Maplewood, MN (US);
St. Jude Medical, Atrial Fibrillation Division, Inc., St. Paul, MN (US);
Abstract
A contact sensing assembly including a catheter and an electrode including a tip portion and a base portion, and a generally central axis, with the electrode being connected to a distal end of the catheter. Optical sensor(s) may be provided for emitting and/or receiving an optical signal, with a part of the optical signal being transverse to the central axis. Optical interference member(s) may be provided for interfering with the optical signal. A method for sensing contact force exerted by an electrode on a tissue includes directing an optical signal along a portion of a catheter, emitting and/or receiving an optical signal, with a part of the optical signal being at a predetermined angle relative to the central axis, and sensing changes in intensity of the optical signal based on displacement associated with the electrode tip portion based on the contact force exerted by the electrode on the tissue.