Portable regenerator

A portable regenerator

A portable regenerator was a device that allowed Borg regeneration without the use of an alcove.

In 2376, when it seemed Icheb would be returning to live with his parents on the Brunali homeworld, Seven of Nine provided Leucon with a portable regenerator and an adapted neural transceiver, so that Icheb could regenerate there. (VOY: "Child's Play")