A surgical reamer driver device provides a fully closed tube which prevents the invasion of debris and minimizes abrasion of soft tissue during use. The reamer device includes a minimum number of component assemblies, so as to permit easy replacement and minimize wear. The surgical reamer driver (1) has a housing assembly (10) in a stand-alone, assembled unit, a transmission drive train (21, 21') in a stand-alone, assembled unit enclosed in the housing assembly (10), and having at least one double universal joint (22, 22') and a surgical tool connector (4) at the distal end (3) thereof, a motor shaft coupling (11, 11') in a stand-alone, assembled unit at the proximal end thereof, and a handle assembly (9) in a stand-alone, assembled unit at the proximal end thereof,these four basic components forming a driver (1) which in a fully assembled state effectively prevents debris from access in the inner workings of the driver (1). A method (600) for disassembling the reamer driver (1) includes the steps of: a. (602) actuating a sliding release sleeve to unlock the handle assembly from the housing assembly, thereby permitting the de-encapsulation of the drive train within the housing assembly； b. (604) sliding the handle assembly off of the housing thereby effectively de-encapsulating the drive train； c. (606) pulling the motor shaft coupling out of the housing thereby freeing the drive train from axial constraint on one end； d. (610) unsnapping the drive train on the one end and lifting the one end out of the housing assembly thereby permitting removal of the drive train； and e. (612) pulling the drive train out of the housing assembly, thus removing the drive train from the housing assembly.L'invention concerne un dispositif d'entraînement d'alésoir chirurgical qui permet d'obtenir un tube entièrement fermé qui empêche la pénétration de débris et limite au minimum l'abrasion des tissus mous pendant l'utilisation. L'alésoir comprend un nombre minimum d'ensembles de compos
