Compact driver for powered surgical tool

摘要

Motor and gearbox assembly, comprising a motor (2) with a rotation axis, a support (3) for supporting the motor (2), comprising a cylindrical front end (30) coaxially aligned with the motor's rotation axis when the motor (2) is attached to the support (3), the cylindrical front end (30) comprising attachment means formed thereon, a gearbox (4) and a casing (5) at least partly enclosing the gearbox (4) and comprising a cylindrical back end (50) with attachment means formed thereon for attachment with the attachment means of the support (3) when the gearbox (4) is coupled to the motor (2), wherein the attachment means of the support (3) and the attachment means of the casing (5) are circular and coaxially aligned with the motor's rotation axis when the gearbox (4) is coupled to the motor (2). Driver (1) for a powered surgical tool, comprising such a motor and gearbox assembly comprising a cylindrical front end (51) with attachment means formed thereon, positioned around the rotation axis of the motor and gearbox assembly, a tool chuck (6) for receiving a surgical tool, coupled to the gearbox (4), comprising a cylindrical back end (61) with attachment means formed thereon for attachment with the attachment means of the motor and gearbox assembly when the motor and gearbox assembly is coupled to the tool chuck (6) and a cover (7) at least partly enclosing the tool chuck (6) and/or the motor and gearbox assembly, wherein the attachment means of the motor and gearbox assembly and the attachment means of the tool chuck (6) are circular and coaxially aligned with the motor's rotation axis when the tool chuck (6) is coupled to the motor and gearbox assembly. Method for assembling such a driver comprising the steps of attaching the motor (2) to the support (3), inserting the gearbox (4) inside the casing (5), coupling the gearbox (4) to the motor (2) by attaching the front end (30) of the support (3) to the back end (50) of the casing (5) and coupling the gearbox (4) to the tool chuck (6) by attaching the front end (51) of the casing (5) to the back end (61) of the tool chuck (6).