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Technical Brief

An Intraventricular Soft Robotic Pulsatile Assist Device for Right Ventricular Heart Failure1

[+] Author and Article Information
Evelyn Park, Nikhil Mehandru, Tonatiuh Lievano Beltran, Erik Kraus

Harvard School of Engineering and
Applied Sciences,
Cambridge, MA 02138

Dónal Holland

Harvard School of Engineering and
Applied Sciences,
Cambridge, MA 02138;
Wyss Institute for Biologically
Inspired Engineering,
Cambridge, MA 02138;
Trinity College Dublin,
Dublin 2, Ireland

Panagiotis Polygerinos, Conor Walsh

Harvard School of Engineering and
Applied Sciences,
Cambridge, MA 02138;
Wyss Institute for Biologically
Inspired Engineering,
Cambridge, MA 02138

Nikolay V. Vasilyev

Boston Children's Hospital,
Boston, MA 02115

Accepted and presented at the Design of Medical Devices Conference (DMD2014), Minneapolis, MN, April 7–10, 2014.

Manuscript received February 21, 2014; final manuscript received February 28, 2014; published online April 28, 2014. Editor: Arthur G. Erdman.

J. Med. Devices 8(2), 020908 (Apr 28, 2014) (3 pages) Paper No: MED-14-1037; doi: 10.1115/1.4027008 History: Received February 21, 2014; Revised February 28, 2014

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Figures

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Fig. 1

CAD model of the device within the heart

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Fig. 2

Device delivery steps: (a) catheter containing device is pushed through RV free wall and septum, (b) plunger is depressed, deploying septal anchor, (c) septal anchor unfolds, (d) anchor holds device in place while catheter is retracted, (e) catheter completely withdrawn, and (f) external adjustable anchor added, securing device

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Fig. 3

Model of adjustable ratcheting free wall anchor

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Fig. 4

Image tracking of device in test setup

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Fig. 5

Contraction of the device over one cycle

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