Cardiac catheters allow clinicians to minimally invasively interact with the beating heart without stopping the heart or opening the chest. However, the fast motion of the intracardiac structures makes it difficult to modify and repair the tissue in a controlled and safe manner. To enable surgical procedures on the inside of the beating heart, we have developed an ultrasound-guided catheter system that virtually freezes the heart by compensating for the fast cardiac motions. The device presented in this paper is a resection tool that allows the catheter system to cut moving tissue, a key surgical task required for many intracardiac procedures including valve and leaflet repair. The motion tracking system is demonstrated in vivo and the tissue resection tool is evaluated by resecting tissue mounted on a cardiac motion simulator. The motion compensated catheter is shown to greatly improve the resection cut quality on the moving tissue target while reducing the forces experienced by the tissue by almost 80%.
Skip Nav Destination
Article navigation
Design Of Medical Devices Conference Abstracts
Design of a Motion Compensated Tissue Resection Catheter for Beating Heart Cardiac Surgery
Samuel B. Kesner,
Samuel B. Kesner
Harvard School of Engineering and Applied Sciences
Search for other works by this author on:
Robert D. Howe
Robert D. Howe
Harvard School of Engineering and Applied Sciences
Search for other works by this author on:
Samuel B. Kesner
Harvard School of Engineering and Applied Sciences
Robert D. Howe
Harvard School of Engineering and Applied Sciences
J. Med. Devices. Jun 2011, 5(2): 027523 (1 pages)
Published Online: June 13, 2011
Article history
Online:
June 13, 2011
Published:
June 13, 2011
Citation
Kesner, S. B., and Howe, R. D. (June 13, 2011). "Design of a Motion Compensated Tissue Resection Catheter for Beating Heart Cardiac Surgery." ASME. J. Med. Devices. June 2011; 5(2): 027523. https://doi.org/10.1115/1.3590649
Download citation file:
Get Email Alerts
Cited By
Related Articles
Design of a Novel Experimental Setup for the Assessment of the Fossa Ovalis Within Large Mammalian Hearts: Investigating Tissue Properties and Clinical Devices Used for Transseptal Access
J. Med. Devices (June,2011)
Design of a Catheter-Based Device for Performing Percutaneous Chordal-Cutting Procedures
J. Med. Devices (June,2009)
Development of an Endocardial Cryoablation Catheter for Concomitant Delivery of Cryogenic Treatment and Adjuvants
J. Med. Devices (June,2011)
CT Visualization of Cryoablation in Pulmonary Veins
J. Med. Devices (June,2009)
Related Proceedings Papers
Related Chapters
Occlusion Identification and Relief within Branched Structures
Biomedical Applications of Vibration and Acoustics in Therapy, Bioeffect and Modeling
Introduction
Modified Detrended Fluctuation Analysis (mDFA)
mDFA Empirical Results
Modified Detrended Fluctuation Analysis (mDFA)