Radial compression mechanism

A radial compression mechanism comprising:

• a) a plurality of dies configured in a circular array, each having a working surface that cooperates with the other dies to form a central cavity having a central axis that is configured to open and close;
• b) an interface surfaces between adjacent dies that constrain the dies to have linear motion relative to adjacent dies;
• wherein each die has an interface surface that interfaces with an interface surface of an adjacent die,
• c) a stationary housing;
• d) a cam guide for each of the plurality of dies configured on said stationary housing that constrain the plurality of dies to move from an open position to a closed position;
• wherein the cam guide guides the plurality of dies to move as a group in a rotational motion about said central axis while also guiding the plurality of dies to move radially with respect to the central axis;
• wherein each of the plurality of dies has a cam interface that restrains the movement of each die as the cam interface moves along the cam guide;
• wherein the circular array of the plurality of dies rotates about the central cavity while each of the plurality of dies move in unison radially inward to close the central cavity;
• wherein the plurality of dies are constrained in motion from an open position to a closed position by the interface surface between adjacent dies and the cam guide;
• and
• wherein the plurality of dies are coupled to said housing and configured to move in unison from an open position, wherein the central cavity is in an open position having an open cavity diameter, to a closed position, wherein the cylindrical cavity is in a closed position having a closed cavity diameter;
• wherein said open cavity diameter is larger than said closed cavity diameter.