Name a safety device often found on laser medical equipment.

A key switch or safety interlock is a critical safety device commonly integrated into laser medical equipment. This device is designed to enhance safety by requiring authorization or a specific action to operate the laser, thereby preventing unauthorized or accidental usage. The key switch acts as a lockout mechanism that ensures only qualified personnel can engage the laser system, which is vital given the high risks associated with laser procedures, such as potential burns or damage to eyes if misused.

In the context of laser equipment, safety devices like alarm systems, emergency stop buttons, and pressure release valves serve important roles, but they do not specifically address the need for controlled access to laser operation. Alarms may signal when certain thresholds are exceeded, emergency stop buttons can halt operation in critical situations, and pressure release valves are more relevant to pressurized systems than to the specific safety needs of laser equipment. The unique function of the key switch or safety interlock in preventing unauthorized activation exemplifies its importance in ensuring safe operation within medical environments where lasers are utilized.