Abstract: An ultrasonic medical treatment apparatus having an piezoelectric element for generating ultrasonic energy is provided. The element is constituted by a plurality of unit piezoelectric elements of two or more different shapes. The surface areas of these unit elements are substantially equal to each other. These unit elements can be individually removed as required.

Abstract: The electronic clinical thermometer in accordance with the present invention comprises a thermometric oscillator for converting a variation in the temperature sensitive resistance to a frequency corresponding to the temperature, a thermometric counter for counting the oscillation frequency of the thermometric oscillator to convert the frequency to a temperature value, a maximum value memory circuit for detecting the maximum value by comparing in succession the content of the thermometric counter, a display circuit for digitally displaying the content of the maximum value memory circuit, and a controlling circuit for controlling the thermometric oscillator so as to discontinue the oscillation of the thermometric oscillator at a prescribed time after the beginning of temperature detection or detection of a maximum value.