What is the name of the Autobot medic?

The Autobot medic is named Ratchet.

Ratchet serves as the Autobots’ chief medical officer in the original Transformers continuity. His job is to repair damaged Cybertronians, perform emergency treatment, and keep the Autobot force operational during its war with the Decepticons. His Earth disguise is based on a Nissan Vanette ambulance, reinforcing his medical role.

Ratchet is part of the earliest Generation 1 character group introduced in 1984. In the cartoon, his workbay contains specialized equipment such as laser scalpels, arc welders, circuit sensors, and diagnostic instruments. He is also portrayed as a skilled tool-and-die worker, giving him engineering abilities beyond ordinary battlefield first aid.

A frequent mix-up is First Aid, who is also an Autobot medic but belongs to the Protectobots and is a separate character. Perceptor is a scientist, Wheeljack is an inventor and engineer, and Ratchet is the principal medical specialist in the original team. Later adaptations retain the name and medical function while changing his personality, design, and alternate mode.