Rathbone was brought in by the Penguins on Tuesday, along with Karel Plasek, from Vancouver in exchange for Mark Friedman and Ty Glover.
Rathbone was placed on waivers for the purpose of reassignment to AHL Abottsford on Sunday.
Rathbone was recalled from AHL Abbotsford on Friday, Jeff Paterson of the Sekeres and Price podcast reports.
Rathbone (undisclosed) returned to AHL Abbotsford's lineup Saturday against Tucson.
Rathbone was reassigned to AHL Abbotsford on Monday.
Rathbone was a healthy scratch during Tuesday's loss to the Devils.
Rathbone signed a one-way contract with the Canucks on Friday.
Rathbone was promoted from AHL Abbotsford on an emergency basis Tuesday.
Rathbone (upper body) will travel with AHL Abbotsford for its upcoming matchup with AHL Colorado.
Rathbone (upper body) -- who was stretched off the ice in a minor-league contest Wednesday -- was released from the hospital Thursday morning, Rick Dhaliwal of TSN 1040 Vancouver reports.