发明名称 |
ELECTROACTIVE ACTUATORS |
摘要 |
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 (10) comprising: an inner tubular structure (15, 12); an outer tubular structure (13, 14) surrounding the inner tubular structure (15, 12) and comprising a plurality of layers of a dielectric elastomeric material (13) and a tubular elastic support structure (14), the elastic support structure (14) configured to maintain a pre-stress in the layers of the dielectric elastomeric material (13), wherein the outer tubular structure (13, 14) is configured to contract in a radial direction around the inner tubular structure (12, 15) upon application of an actuation voltage signal across the dielectric elastomeric material layers (13). |
申请公布号 |
US2016144091(A1) |
申请公布日期 |
2016.05.26 |
申请号 |
US201414897816 |
申请日期 |
2014.06.12 |
申请人 |
THE NOTTINGHAM TRENT UNIVERSITY ;NOTTINGHAM UNIVERSITY HOSPITALS NHS TRUST |
发明人 |
Breedon Philip;Coulter Fergal;Richens David |
分类号 |
A61M1/10;B29C67/00;A61M1/12 |
主分类号 |
A61M1/10 |
代理机构 |
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代理人 |
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主权项 |
1. 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. |
地址 |
Nottingham, Nottinghamshire GB |