Sterile surgical adaptor

A sterile adaptor comprising:

• a housing;
• an electrical contact coupled to the housing;
• a retractor plate assembly including a top retractor plate and a bottom retractor plate, the retractor plate assembly movably disposed relative to the housing;
• and
• a disc captured between and rotatable relative to the top retractor plate and the bottom retractor plate, the disc having a first surface adapted to engage a spring loaded input of a manipulator arm and a second rotatable surface adapted to engage a surgical instrument in a sterile field.

A method of coupling a sterile adaptor to a manipulator arm comprising:

• providing a sterile adaptor including:
• a housing, a retractor plate assembly movably disposed relative to the housing and including a top retractor plate and a bottom retractor plate, and
• a disc captured between and rotatable relative to the top retractor plate and the bottom retractor plate;
• engaging a spring loaded input of the manipulator arm with the disc;
• engaging a spring loaded plunger with the retractor plate assembly;
• and
• engaging an electrical contact of the sterile adaptor with an electrical contact of the manipulator arm.