Scalpel handle and detachable blade holder

Claim 1

IN COMBINATION A SCALPEL HANDLE AND A DETACHABLE BLADE HOLDER; SAID SCALPEL HANDLE COMPRISING AN ELONGATED BODY HAVING A SQUARED END, A TONGUE EXTENDING LONGITUDINALLY FROM THE CENTER OF SAID QUARED END DEFINING OPPOSED SHOULDERS, SAID BODY HAVING AN ELONGATED TAPERED GROOVE EXTENDING FROM SAID SQUARED END LONGITUDINALLY TO AN INTERMEDIATE POINT, SAID GROOVE TERMINATING IN A FIRST RECESS, SAID FIRST RECESS COMMUNICATING WITH AN ALIGNED CONCAVED SECOND RECESS, SAID BODY HAVING A SECOND GROOVE AT THE BOTTOM THEREOF AND EXTENDING INTO SAID TONGUE, SAID SECOND GROOVE TAPERING INWARDLY TOWARDS SAID INTERMEDIATE POINT, SAID BLADE HOLDER COMPRISING AN ELONGATED TAPERED MEMBER HAVING A SQUARED END DEFINING SHOULDERS ABUTTING SAID FIRST MENTIONED SHOULDER AND A SOCKET RECEIVING SAID TONGUE, A SHANK EXTENDING FROM ONE SIDE OF SAID SQUARED END AND SEATING IN SAID GROOVE, SAID TONGUE HAVING AN ENLARGED END SEATING IN SAID FIRST RECESS AND OVERLYING A PORTION OF SAID SECOND RECESS WHEREBY TO PERMIT THE ENGAGEMENT OF A FINGERNAIL INTO THE CONCAVITY BENEATH SAID ENLARGED PORTION TO LIFT THE SAME OUT OF SAID FIRST RECESS AND PERMIT LONGITUDINAL DISENGAGEMENT OF SAID BLADE HOLDER FROM SAID HANDLE AS SAID TONGUE ON SAID HANDLE IS REMOVED FROM ITS ASSOCIATED SOCKET, SAID TONGUE ON SAID BLADE HOLDER HAVING A RAISED TAPERED RIDGE ON THE FACE THEREOF ADJACENT SAID GROOVE, SAID RIDGE CONFORMING IN CONFIGURATION TO AND SEATING IN SAID SECOND GROOVE, AND MEANS ON SAID BLADE HOLDER FOR RELEASABLY SECURING A BLADE THERETO.