IEC 60601-2-5:2009适用于超声波理疗设备的基本安全和基本性能，每个治疗头使用一个单平面非聚焦圆形换能器，产生垂直于治疗头表面的静态光束。本标准也适用于用于补偿或减轻疾病、伤害或残疾的超声波理疗设备。第三版取消并取代2000年出版的第二版。本版为技术修订版。对编号进行了修订，以符合IEC 60601-1:2005（第三版）的要求。除此之外，在201.4.3.101中定义了基本性能特征，在201.7.9.2.1中增加了维护指南，在201中增加了关于介质耐受性的新要求。 8.8.3. 关于传感器表面温升的条款201.11已经修改，以允许模拟使用条件。超声相关参数的测量现在参考IEC 61689:2007（第二版）。超声相关参数中最重要的变化是有效辐射面积的定义，201.3.207。这种变化还将影响有效强度的值及其不确定性。

IEC 60601-2-5:2009 applies to the basic safety and essential performance of ultrasonic physiotherapy equipment employing a single plane unfocused circular transducer per treatment head, producing static beams perpendicular to the face of the treatment head. This standard can also be applied to ultrasonic physiotherapy equipment used for compensation or alleviation of disease, injury or disability. This third edition cancels and replaces the second edition published in 2000. This edition constitutes a technical revision. The numbering was revised to agree with IEC 60601-1:2005 (third edition). Beyond this, essential performance characteristics are defined in 201.4.3.101, guidance on maintenance is added in 201.7.9.2.1, a new requirement regarding dielectric withstand was added in 201.8.8.3. The clause on transducer surface temperature rise, 201.11, has been modified to allow for simulated use conditions. Measurements of ultrasound-related parameters are now referenced to IEC 61689:2007 (second edition). The most important change in the ultrasound-related parameters is the definition of effective radiating area, 201.3.207. This change will also affect the value of the effective intensity and its uncertainty.