Ultrasonic diagnostic apparatus beam emitting method and ultrasonic diagnostic apparatus

Abstract

An ultrasonic diagnostic instrument beam emission method and an ultrasonic diagnostic instrument are disclosed. The array elements of a probe (1) are controlled to emit ultrasonic beams according to a set combination of high-power emission mode and stop emission mode. At least one parameter of the high emission power, high-power emission duration of the high-power emission mode, and the stop emission duration of the stop emission mode is calculated using the normal emission power for continuous operation under the current emission conditions. The ultrasonic diagnostic instrument beam emission method and the ultrasonic diagnostic instrument can enhance the quality of the ultrasound image and can also control the surface temperature rise of the probe (1) in accordance with the requirements of IEC standards.

Description

technical field

[0001] The invention relates to a medical device, in particular to an ultrasonic diagnostic instrument and a beam emitting method thereof. Background technique

[0002] In 1992, with the support of the American Institute of Ultrasound in Medicine (AIUM) and the National Electrical Manufacturers Association (NEMA), the US Food and Drug Administration (FDA) made major adjustments to the acoustic output indicators of medical ultrasound. The FDA has relaxed the Ispta index of the sound output index to 720mw / cm2, and requires that the sound pressure and sound intensity parameters be converted into mechanical index (MI) and thermal index (TI) and displayed on the screen. In this way, for ultrasound manufacturers, the limitation of acoustic output becomes very wide, allowing ultrasound scanners with higher transmission power to be used in medical diagnosis. With the release of sound power indicators and the improvement of image quality requirements, the transmissio...

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