| 摘要 |
<p>The cooling system comprises a housing (12) enclosing an ultrasound transducer assembly of a probe (2). A backing heat sink (20) of thermally conductive material has two surfaces, the first surface being positioned adjacent the ultrasound transducer assembly. The backing heat sink is rotatable. A fixed heat sink (22) of thermally conductive material, has two surfaces, the first surface being positioned proximate to the backing heat sink. A thermal coupling media (24), e.g. a thin oil layer, positioned between the backing heat sink and the fixed heat sink, is operative to promote heat transfer. A ball bearing preload screw (26) is operative to fasten the backing heat sink, the fixed heat sink, and the transducer element as an assembly such that the thermal coupling media is between the backing and fixed heat sinks. A first ball bearing (28A) is positioned proximate to the second surface of the backing heat sink and the first surface of the fixed heat sink. A second ball bearing (28B) is positioned proximate to the second surface of the fixed heat sink and the ball bearing preload screw.</p> |
