US Patent 9011427 Surgical instrument safety glasses

A surgical instrument includes a handle assembly housing a wireless circuit board. The wireless circuit board transmits a signal to a set of safety glasses worn by a surgeon using the surgical instrument during a procedure. The signal is received by a wireless port on the safety glasses. One or more lighting devices on a front lens of the safety glasses change color, fade, or glow in response to the received signal to indicate information to the surgeon about the status of the surgical instrument. The lighting devices are disposable on peripheral edges of the front lens to not distract the direct line of vision of the surgeon.