Stryker System 7 is a line of heavy-duty, battery-powered surgical tools for orthopedic procedures, featuring a sagittal saw and rotary handpiece powered by lightweight, long-lasting SmartLiFE™ Li-Ion batteries. The system is designed for cutting, drilling, and smoothing bone, and is used in total joint procedures like hip and knee replacements for applications such as placing screws, wires, and pins.