A<unk>  is a bone cutter used to perform median sternotomy, opening the patient's chest by splitting the breastbone, or sternum. It is a reciprocating blade<unk>  that resembles a jigsaw in appearance. It was invented and introduced by Dr. Edward P. ("Ted") Diethrich in 1963.
Sternal saw
Qardio
Medisave
Cordial 
Talon cusp
Stimson line
CVAC
Apex beat