Orthopedic device

An orthopedic device comprising:

• a base shell having ankle and foot receiving portions, the base shell forming an opening over a dorsal aspect thereof;
• a dorsal shell contoured to generally correspond to the opening of the base shell;
• at least one tightening member connectable to the base shell and extendable over the dorsal shell to secure the base shell and dorsal shell together about a user's lower leg and foot;
• at least one inflatable bladder provided in the ankle receiving portion of the base shell;
• and
• a pump assembly arranged to inflate the at least one inflatable bladder;
• and
• a pressure relief valve assembly fluidly connected to the at least one inflatable bladder, the pressure relief valve assembly arranged to automatically release air from the at least one inflatable bladder to atmosphere when the at least one inflatable bladder is over-inflated.

An orthopedic device comprising:

• a base shell having ankle and foot receiving portions, the base shell forming an opening over a dorsal aspect thereof;
• a dorsal shell contoured to generally correspond to the opening of the base shell;
• at least one tightening member connectable to the base shell and extendable over the dorsal shell to secure the base shell and dorsal shell together about a user's lower leg and foot;
• at least one inflatable bladder provided in the ankle receiving portion of the base shell;
• a pump assembly arranged to inflate the at least one inflatable bladder, the pump assembly situated on the at least one tightening member such that the position of the pump assembly is substantially fixed relative to the base shell as a user walks in the orthopedic device;
• and
• a pressure relief valve assembly situated on a posterior aspect of the base shell, the pressure relief valve assembly arranged to automatically release air from the at least one inflatable bladder to atmosphere when pressure within the at least one inflatable bladder exceeds a cracking pressure of the pressure relief valve assembly.