Tolopilo, 25, has appeared in six games with the NHL club this season, sporting an .881 save percentage and 3.98 goals-against average. In 13 AHL games, he has a .901 save percentage and 2.94 GAA.
Patera, 26, played in one game for the Canucks, allowing seven goals with an .825 save percentage.
He has a .915 save percentage and 2.49 GAA in 16 games at the AHL level.
The Canucks are back in action Sunday when they host the Pittsburgh Penguins (Sportsnet, Sportsnet+, 6 p.m. ET / 3 p.m. PT).