[Retracted] Surgery and Postoperative Care of Patients Undergoing Percutaneous Nephrolithotomy under the Guidance of B-Ultrasound Based on Smart Internet of Things

Figure 7

Percutaneous nephroscope laser lithotripsy guided by ultrasound.

(a) Disinfection shop order

(b) Positioning puncture under the guidance of B-ultrasound

(c) Establish percutaneous renal lithotripsy and stone extraction channels

(d) Stone crushing and stone fetching operations