This paper discusses the structural and functional principles of the ultrasonic cardiofunction diagnostic instrument which has the multifunction of recording VCG, ECG, PCG, ACG and CPT simultaneously or separately.

• 可供观测M型超声心动图的仪器,称为“超声心动图仪”。 具有超声心动图(UCG)与心电图(ECG)、心音图(PCG)、心尖搏动图(ACG)及颈动脉搏动图(CPT)中的部分或全部功能的仪器,称为“超声心脏功能诊断仪”(心功仪)。