Wide range force feedback for catheter insertion mechanism for use in minimally invasive mitral valve repair surgery

Roozbeh Ahmadi; Saeed Sokhanvar; Muthukumaran Packirisamy; Javad Dargahi

doi:10.1117/12.808308

20 February 2009 Wide range force feedback for catheter insertion mechanism for use in minimally invasive mitral valve repair surgery

Roozbeh Ahmadi, Saeed Sokhanvar, Muthukumaran Packirisamy, Javad Dargahi

Author Affiliations +

Proceedings Volume 7173, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications IX; 71730W (2009) https://doi.org/10.1117/12.808308
Event: SPIE BiOS, 2009, San Jose, California, United States

Abstract

Mitral valve regurgitation (MR) is a condition in which heart's mitral valve does not close tightly, which allows blood to leak back into the left atrium. Restoring the dimension of the mitral-valve annulus by percutaneous intervention surgery is a common choice to treat MR. Currently, this kind of open heart annuloplasty surgery is being performed through sternotomy with cardiomyopathy bypass. In order to reduce trauma to the patient and also to eliminate bypass surgery, robotic assisted minimally invasive surgery (MIS) procedure, which requires small keyhole incisions, has a great potential. To perform this surgery through MIS procedure, an accurate computer controlled catheter with wide-range force feedback capabilities is required. There are three types of tissues at the site of operation: mitral leaflet, mitral annulus and left atrium. The maximum allowable applied force to these three types of tissue is totally different. For instance, leaflet tissue is the most sensitive one with the lowest allowable force capacity. For this application, therefore, a wide-range force sensing is highly required. Most of the sensors that have been developed for use in MIS applications have a limited range of sensing. Therefore, they need to be calibrated for different types of tissue. The present work, reports on the design, modeling and simulation of a novel wide-range optical force sensor for measurement of contact pressure between catheter tip and heart tissue. The proposed sensor offers a wide input range with a high resolution and sensitivity over this range. Using Micro-Electro-Mechanical-Systems (MEMS) technology, this sensor can be microfabricated and integrated with commercially available catheters.

Citation Download Citation

Roozbeh Ahmadi, Saeed Sokhanvar, Muthukumaran Packirisamy, and Javad Dargahi "Wide range force feedback for catheter insertion mechanism for use in minimally invasive mitral valve repair surgery", Proc. SPIE 7173, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications IX, 71730W (20 February 2009); https://doi.org/10.1117/12.808308

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available