mnidirectional 360°operation.Earth core position-ing,pucture angel accurate to 1°.Target precision±5mm.Cannula attached puncture needle is multi-function:biopsy,injection,body fluid collection,ablation Single puncture,multi-treatment.Assist minimally invasion. Biopsy:equipped with biopsy needles,sigle punc-ture,multi-sample collection.none resistance cut-ting,ensure good quality sample.medicine injec-tion,prevent implantation metastaisi and bleeding