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:
Sep. 23, 2025

Filed:

May. 19, 2021
Applicant:

Khalifa University of Science and Technology, Abu Dhabi, AE;

Inventors:

Cesare Stefanini, Abu Dhabi, AE;

Hessa Al Falahi, Abu Dhabi, AE;

Federico Renda, Abu Dhabi, AE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 34/30 (2016.01); A61B 18/14 (2006.01); A61B 17/00 (2006.01); A61M 25/01 (2006.01);
U.S. Cl.
CPC ...
A61B 34/30 (2016.02); A61B 2017/00305 (2013.01); A61B 2017/00318 (2013.01); A61B 2034/301 (2016.02); A61M 25/0113 (2013.01);
Abstract

A robotic catheter can include bi-stable concentric tubes and a torsional spring mechanism that can provide torque at the proximal extremity of one or more tubes. The robotic catheter can compensate for the energy that may be released by the tubes snapping from on stable-equilibrium position to another by using the energy stored in the torsional spring mechanism. The energy released by the tubes upon snapping from one stable-equilibrium position to the other can be compensated by the energy stored in the torsional spring at the base, thereby resulting in the first, energy-free, zero stiffness catheter system that (1) synchronizes with the motion of the heart and (2) naturally results in optimal, pseudo-constant contact force with the tissue.


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