| CPC A61B 17/0206 (2013.01) [A61B 1/32 (2013.01); A61B 2017/0256 (2013.01)] | 20 Claims |

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1. A method of using a retractor, comprising:
making an incision in a tissue of a body;
inserting a first probe and a second probe into the incision;
inserting a third blade of a retractor over the first probe and the second probe;
removing the second probe;
inserting a shim along the third blade of the retractor, wherein inserting the shim along the third blade of the retractor comprises inserting the shim within a channel of the first probe; and
removing the first probe.
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