Mechanical Crimper

A crimping device for crimping a medical device from a first larger diameter to a second smaller diameter, the crimping device comprising:

• a housing assembly;
• an iris assembly including a plurality of crimping members;
• a handle assembly operably coupled to the housing assembly;
• a rotating body operably coupled to the handle and to the plurality of crimping members such that rotation of the handle causes rotation of the rotating body, and rotation of the rotating body drives the crimping members toward or away from each other to close or open the iris assembly, respectively;
• and
• a sizing key configured to be coupled to the rotating body,
• wherein (i) when the sizing key is not coupled to the rotating body, the rotating body has a first range of rotation corresponding to a first minimum size of the iris assembly, and (ii) when the sizing key is coupled to the rotating body, the rotating body has a second range of rotation corresponding a second minimum size of the iris assembly, the second minimum size of the iris assembly being larger than the first minimum size of the iris assembly.