Patent Document ID: 10154836
Application ID: 14515375
Patent Flag: 1

Claim One:
1. An insert for balancing a joint during repair of the joint, the insert comprising: a top plate configured to interface with a bone structure of a joint; a bottom plate spaced apart from the top plate and configured to interface with an opposing bone structure of the joint; a pneumatic actuator including a first bellows made of an inflatable material, the first bellows configured to inflate and distribute a pneumatic force to the top plate and to the bottom plate; one or more sensors for measuring a spatial relationship between the top plate and the bottom plate; a processor communicatively coupled to the one or more sensors and configured to determine displacement and angle between the top plate and the bottom plate based on the spatial relationship; and wherein the first bellows includes four first compartments that are in direct fluid communication, each compartment being located in a quadrant of the first bellows.