Special Section Technical Briefs

A Muscle-Powered Counterpulsation Device for Tether-Free Cardiac Support: Form and Function1

[+] Author and Article Information
Dennis R. Trumble

Department of Biomedical Engineering,
Carnegie Mellon University,
Pittsburgh, PA 15213

DOI: 10.1115/1.4033115Manuscript received March 1, 2016; final manuscript received March 16, 2016; published online May 12, 2016. Editor: William Durfee.

J. Med. Devices 10(2), 020903 (May 12, 2016) (2 pages) Paper No: MED-16-1055; doi: 10.1115/1.4033115 History: Received March 01, 2016; Revised March 16, 2016

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Copyright © 2016 by ASME
Topics: Muscle , Blood
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Trumble, D. R. , and Magovern, J. A. , 2002, “ Muscle Powered Mechanical Blood Pumps,” Science, 296(5575), p. 1967b. [CrossRef]
Trumble, D. R. , Norris, M. , and Melvin, A. , 2010, “ An Implantable Muscle Energy Converter for Powering Pulsatile Cardiac Assist Devices: Design Improvements and In Vitro Testing,” ASME J. Med. Devices, 4(3), p. 035002. [CrossRef]
Abraham, W. T. , Aggarwal, S. , Prabhu, S. D. , Cecere, R. , Pamboukian, S. V. , Bank, A. J. , Sun, B. , Pae, W. E. , Hayward, C. S. , McCarthy, P. M. , Peters, W. S. , Verta, P. , and Slaughter, M. S. , 2014, “ Ambulatory Extra-Aortic Counterpulsation in Patients With Moderate to Severe Chronic Heart Failure,” J. Am. Coll. Cardiol. Heart Failure, 2(5), pp. 526–533. [CrossRef]


Grahic Jump Location
Fig. 1

Rendering of the current MEC device shown with intact housing (top) and in 3/4 cross section (bottom). 1: LD tendon interface; 2: actuator arm; 3: backup pneumatic actuation port; 4: ribcage mounting ring; 5: metal bellows; 6: cam follower; 7: cam; 8: camshaft bushings; 9: spring-loaded lip seal; 10 camshaft; 11: fluid reservoir; and 12: fluid outlet port.

Grahic Jump Location
Fig. 2

The MEC/EAC system shown implanted in a patient. This mVAD would be self-contained with no percutaneous attachments, avoiding problems of drive-line infection and thromboembolic events. Inset shows rotation of the MEC actuator arm with LD contraction.



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