A Model Trolley for Portable B Scanner-SonoStar-Manufacturer of Palm Ultrasound, Handle Ultrasound, Mini sono, Mini Ultrasound, Wireless Ultrasound, Portable Ultrasound, Ultrasonic, Color Doppler, USG, Probe Type, Pocket Ultrasound, USB Ultrasond, WirelessSono, PhoneSono, PocketSono, B scanner, Ultrasound Scanner, Veterinary B Scanner, Bladder Scanner, imaging system, diagnosis, Ophthalmic Scanner