What type of exposure switch is required for all fluoroscopy machines?

The "dead man" type switch is a safety mechanism required for all fluoroscopy machines to ensure that the radiation exposure occurs only when the operator is actively controlling the machine. This switch requires continuous pressure to permit the exposure to happen. If the operator releases the switch, the exposure is immediately terminated, minimizing the risk of unnecessary radiation to the patient and the operator.

This mechanism is critical in medical imaging environments, as it reinforces the principle of minimizing exposure to radiation and enhances patient safety. It encourages vigilance from the operator, ensuring they remain engaged and attentive during the procedure. The design of the "dead man" switch is an essential regulatory requirement in fluoroscopy to protect both patients and staff from the potential risks associated with radiation exposure.