Superelastic NiTi thin film small vessel graft for vascular repair

Youngjae Chun; Daniel S. Levi; K. P. Mohanchandra; Fernando Vinuela; Fernando Vinuela Jr.; Gregory P. Carman

doi:10.1117/12.815400

6 April 2009 Superelastic NiTi thin film small vessel graft for vascular repair

Youngjae Chun, Daniel S. Levi, K. P. Mohanchandra, Fernando Vinuela, Fernando Vinuela Jr., Gregory P. Carman

Proceedings Volume 7288, Active and Passive Smart Structures and Integrated Systems 2009; 728804 (2009) https://doi.org/10.1117/12.815400
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2009, San Diego, California, United States

Abstract

Thin film NiTi produced by sputter deposition was used in the design of small vessel grafts intended to treat small vessel aneurysms. Thin film small vessel grafts were fabricated by "hot-target" DC sputter deposition. Both stress-strain curves and DSC curves were generated for the film used to fabricate small vessel grafts. The films used for small vessel grafts had an Af temperatures of approximately 36 degrees allowing for body activated response from a micro-catheter. Thin film small vessel grafts were tested in a pulsatile flow loop in vitro. Small vessel grafts could be compressed into and easily delivery in < 3 Fr catheters. Theoretical frictional and wall drag forces on a thin film NiTi small vessel vascular graft were calculated and the radial force exerted by thin film small vessel grafts was evaluated theoretically and experimentally. In-vivo studies in swine confirmed that thin film NiTi small vessel grafts could be deployed accurately and consistently in the swine vascular system.

Citation Download Citation

Youngjae Chun, Daniel S. Levi, K. P. Mohanchandra, Fernando Vinuela, Fernando Vinuela Jr., and Gregory P. Carman "Superelastic NiTi thin film small vessel graft for vascular repair", Proc. SPIE 7288, Active and Passive Smart Structures and Integrated Systems 2009, 728804 (6 April 2009); https://doi.org/10.1117/12.815400

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