scholarly journals Design and Evaluation of a Catheter Contact-Force Controller for Cardiac Ablation Therapy

2016 ◽  
Vol 63 (11) ◽  
pp. 2301-2307 ◽  
Author(s):  
Daniel Gelman ◽  
Allan C. Skanes ◽  
Mohammad A. Tavallaei ◽  
Maria Drangova
Keyword(s):  
Contact Force ◽  
Cardiac Ablation ◽  
Ablation Therapy

scholarly journals 507 Research to support the catheter cardiac ablation therapy : Relationship between the catheter contact force and the ablation effect

2014 ◽  
Vol 2014.22 (0) ◽  
pp. 11-12
Author(s):  
Shunya Yamano ◽  
Kiyofumi Takahashi ◽  
Nobuo Watanabe
Keyword(s):  
Contact Force ◽  
Cardiac Ablation ◽  
Ablation Therapy ◽  
Therapy Relationship

Mapping Contact Force during Catheter Ablation for the Treatment of Atrial Fibrillation: New Insights into Ablation Therapy

2011 ◽  
pp. 302-303 ◽  
Author(s):  
Rashed Karim ◽  
Gang Gao ◽  
James Harrison ◽  
Aruna Arujuna ◽  
Hendrik Lambert ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Contact Force ◽  
Ablation Therapy

Design and Evaluation of a Passive Constant Force Mechanism for a Cardiac Ablation Catheter

2020 ◽  
Vol 15 (2) ◽  
Author(s):  
Werner W. P. J. van de Sande ◽  
Awaz Ali ◽  
Giuseppe Radaelli
Keyword(s):  
Contact Force ◽  
Effective Range ◽  
Constant Force ◽  
Ablation Catheter ◽  
Cardiac Ablation ◽  
Element Analysis ◽  
Average Force ◽  
And Performance ◽  
Force Mechanism ◽  
Constant Force Mechanism

Abstract Contact force management has been proven to have a positive effect on the outcome of cardiac ablation procedures. However, no method exists that allows maintaining a constant contact force within a required and effective range. This work aims to develop and evaluate such a constant force mechanism for use in an ablation catheter. A passive constant force mechanism was designed based on a tape loop. The tape loop consists of two tapered springs that work in parallel. A finite element analysis was carried out to verify the behavior and performance of the design. A design based on requirements for a constant force ablation tip showed an average force of about 7.8×10−2 N±8×10−3 N over 20 mm in simulation. A scaled prototype was built and evaluated to prove the validity of the concept; this prototype provides an average force of 1.3×10−1 N±1.6×10−2 N over 35 mm. The mechanism allows for controlled delivery of contact force within a desired and effective range. Based on these findings, it can be concluded that the approach is successful but needs to be optimized for future applications. Being able to control the delivery of contact force in a constant range may increase the effectivity of cardiac ablation procedures and improve clinical outcomes.

scholarly journals Measurements of the left atrium and pulmonary veins for analysis of reverse structural remodeling following cardiac ablation therapy

2015 ◽  
Vol 118 (2) ◽  
pp. 198-206 ◽  
Author(s):  
Maryam E. Rettmann ◽  
David R. Holmes III ◽  
Jerome F. Breen ◽  
Xin Ge ◽  
Ronald A. Karwoski ◽  
...  
Keyword(s):  
Left Atrium ◽  
Pulmonary Veins ◽  
Cardiac Ablation ◽  
Structural Remodeling ◽  
Ablation Therapy

Segmentation of left atrial intracardiac ultrasound images for image guided cardiac ablation therapy

2013 ◽  
Author(s):  
M. E. Rettmann ◽  
T. Stephens ◽  
D. R. Holmes ◽  
C. Linte ◽  
D. L. Packer ◽  
...  
Keyword(s):  
Left Atrial ◽  
Ultrasound Images ◽  
Cardiac Ablation ◽  
Ablation Therapy ◽  
Image Guided ◽  
Intracardiac Ultrasound

Optical contact force monitoring sensor for cardiac ablation catheters

Optik ◽  
2016 ◽  
Vol 127 (24) ◽  
pp. 11823-11827 ◽  
Author(s):  
Jang Ah Kim ◽  
Kihong Park ◽  
Changmin Kim ◽  
Atul Kulkarni ◽  
Taesung Kim
Keyword(s):  
Contact Force ◽  
Optical Contact ◽  
Cardiac Ablation ◽  
Force Monitoring
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