The invention discloses a handheld animal and
plant tissue ablation instrument based on an ultrasonic principle. The instrument comprises a shell and an ultrasonic vibrator, wherein the shell is internally provided with a control panel and a driving board, and the ultrasonic vibrator is fixedly connected to the front end of the shell; the ultrasonic vibrator comprises an ultrasonic
transducer andan amplitude
transformer which is fixedly connected to the front end of the ultrasonic
transducer and transmits vibration input by the ultrasonic
transducer after the amplitude of the vibration is changed; the control panel is provided with a power supply, a DCDC conversion unit, a main
control unit, a DCDC power adjusting unit and a sampling unit; the driving board is provided with a driving unit, a
voltage transformation unit and a
resonance unit. The handheld shell comprises a first section and a second section between which an obtuse angle is formed, and the end, away from the second section, of the first section is the front end of the shell. According to the handheld animal and
plant tissue ablation instrument, a low-
hertz ultrasonic method is utilized to achieve the purpose of rapidly and simply ablating tissue blocks into
cell suspensions, and therefore subsequent extraction of tissue
RNA and
DNA or
protein is facilitated. The instrument has the advantages of being convenient to hold, install, maintain and dismantle, firm, great in effect and long in service life.