Ralph Sinkus,Ondrej Holub,Simon Lambert,Rachel Clough
申请号：
US15553933
公开号：
US20180172789A1
申请日:
2016.02.25
申请国别(地区):
US
年份:
2018
代理人:
摘要：
Embodiments of the invention provide a magnetic resonance (MR) compatible transducer for magnetic resonance elastography applications having a cantilevered drive element (54) a free end of which is arranged in use to move reciprocally, and a flexible non-conductive connection rod (62) slidably disposed within a flexible non-conductive sleeve (60). The connection rod is affixed at a proximal end to the cantilevered drive element via a proximal flexible connection piece (64) that in use accommodates the slight rotational movement of the cantilevered drive element as it reciprocates about its secured end, whilst translating the rotational reciprocation of the cantilevered drive element into a pure translational reciprocation of the connection rod within the sleeve. The distal end of the connection rod is affixed against a protrusion connected to another cantilevered driven element (56), upon which is mounted a piston element (58) that in use contacts the subject. The distal end of the connection rod is provided with a distal flexible connection piece that forms the connection between the end of the connection rod and the cantilevered driven element, again to account for the pure translational movement of the rod being converted to rotational movement of the cantilevered driven element about its cantilever pivot point.
