We developed a new mechanical heart valve prototype with a unique mechanism for attachment to cardiac tissue. The development of novel prosthetic heart valve systems requires careful assessment of paravalvular leaks — leakage of fluid that takes place between the valve and the cardiac tissue it is attached to. Traditional methods of testing paravalvular leaks in flow chambers are not ideal for novel devices and may underestimate its true extent. In this paper we developed a novel method of quantifying paravalvular leaks involving the use of 3D printed prototype heart valves and cadaveric bovine hearts, and compared the results with those from commercially available Medtronic ATS mechanical bileaflet valves. The average leak in our final prototype heart valves were found to be 0.13 ml/sec, compared to 0.33 ml/sec in the ATS valve.
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ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 6–9, 2017
Cleveland, Ohio, USA
Conference Sponsors:
- Design Engineering Division
- Computers and Information in Engineering Division
ISBN:
978-0-7918-5815-8
PROCEEDINGS PAPER
Evaluation of Paravalvular Leakage in Novel Mechanical Heart Valve
Ankit Saxena,
Ankit Saxena
Innovator Lab Consultants India Pvt. Ltd., New Delhi, India
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Rohan Shad,
Rohan Shad
University College of Medical Sciences, New Delhi, India
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Mrudang Mathur,
Mrudang Mathur
Delhi Technological University, New Delhi, India
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Anwesha Chattoraj,
Anwesha Chattoraj
Delhi Technological University, New Delhi, India
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Sujay Shad
Sujay Shad
Sir Ganga Ram Hospital, New Delhi, India
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Ankit Saxena
Innovator Lab Consultants India Pvt. Ltd., New Delhi, India
Rohan Shad
University College of Medical Sciences, New Delhi, India
Mrudang Mathur
Delhi Technological University, New Delhi, India
Anwesha Chattoraj
Delhi Technological University, New Delhi, India
Sujay Shad
Sir Ganga Ram Hospital, New Delhi, India
Paper No:
DETC2017-67729, V003T13A007; 5 pages
Published Online:
November 3, 2017
Citation
Saxena, A, Shad, R, Mathur, M, Chattoraj, A, & Shad, S. "Evaluation of Paravalvular Leakage in Novel Mechanical Heart Valve." Proceedings of the ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 3: 19th International Conference on Advanced Vehicle Technologies; 14th International Conference on Design Education; 10th Frontiers in Biomedical Devices. Cleveland, Ohio, USA. August 6–9, 2017. V003T13A007. ASME. https://doi.org/10.1115/DETC2017-67729
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