Patent ID: 7497860

Claim:
A surgical sagittal saw assembly comprising: a handpiece, said handpiece including: a head dimensioned to receive a guide bar; a driver moveably mounted to said head for simultaneously reciprocating two drive rods in opposed directions; a fastening unit attached to said head that releaseably holds the guide bar to said head; and a drive unit for actuating said driver; and a blade assembly, said blade assembly including: a guide bar having proximal and distal ends, the proximal end being shaped to be received by said handpiece head and having at least one feature that cooperates with said fastening unit so that said fastening unit releasably holds said guide bar to said handpiece head so that said guide bar is statically secured to said handpiece head, the distal end having a thickness; a blade including: a base at least partially disposed inside said guide bar that is pivotally mounted to said guide bar adjacent the distal end of said guide bar; and a head integral with said base that is formed with teeth located outside of said guide bar, said blade head having a thickness at least equal to the thickness of the distal end of said guide bar; and two drive rods that are moveably connected to and that extend proximally away from said blade, said drive rods being connected to said blade on opposed sides of a pivot point, each said drive rod having a proximal end and a coupling feature that releasably couples said drive rods to said handpiece driver so that the actuation of said driver results in the simultaneous opposed reciprocation of said drive rods so that said drive rods oscillate said blade about the pivot point.