Electroactive actuators (cardiac assist device)

Breedon, P. ORCID: 0000-0002-1006-0942, Coulter, F. and Richens, D., 2018. Electroactive actuators (cardiac assist device). US1011195.

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The invention relates to actuators based on electroactive polymeric materials for use in pumping fluids or in other applications where a contractile actuation is required, in particular, although not necessarily exclusively, for use in vascular pulsation devices such as a variable aortic tension device. Embodiments disclosed include an actuator comprising: an inner tubular structure; an outer tubular structure surrounding the inner tubular structure and comprising a plurality of layers of a dielectric elastomeric material and a tubular elastic support structure, the elastic support structure configured to maintain a pre-stress in the layers of the dielectric elastomeric material, wherein the outer tubular structure is configured to contract in a radial direction around the inner tubular structure upon application of an actuation voltage signal across the dielectric elastomeric material layers.

Item Type: Patent/Published patent application
Description: Assignees: Nottingham Trent University; Nottingham University Hospitals NHS Trust
Patent Cooperation Treaty (PCT) No.: PCT/GB2014/051813
PCT Filing date: 12.06.2014
Creators: Breedon, P., Coulter, F. and Richens, D.
Date: 30 October 2018
Divisions: Schools > School of Architecture, Design and the Built Environment
Record created by: Jonathan Gallacher
Date Added: 08 Mar 2019 09:17
Last Modified: 08 Mar 2019 09:32
URI: https://irep.ntu.ac.uk/id/eprint/35942

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