Cellular regeneration chamber
The cellular regeneration chamber was a medical treatment device used for cellular regeneration of a patient's injury. Though one cycle was considered the minimum for a patient, a physician might recommend more cycles for better treatment, for example, an external scar would go away after five cycles.
On aboard the USS Discovery, the room containing this chamber was on the same deck as the sickbay. In 3189, Paul Stamets was moved to this room from sickbay by Doctor Hugh Culber and received treatment for his shrapnel wound in this chamber. (DIS: "Far From Home")