Abstract: A magnetic drive medical handpiece includes a handpiece housing (1), and a magnetic power output assembly (20) and a magnetic power input assembly (30), where the magnetic power output assembly (20) is configured to be in connected transmission with a cutting tool, the magnetic power input assembly (30) is in transmission fit with a power apparatus and is configured to drive, by using magnetic force, the magnetic power output assembly (20) to rotate, and a separation member (2) configured to form an axial static seal is disposed between the magnetic power output assembly (20) and the magnetic power input assembly (30).

Abstract: A rotary cutting tool includes an outer cutter provided with a sampling groove at the front end, and an inner cutter sleeved inside the outer cutter; the cutting tool also comprises a rotating driven member slidably engaged with the inner cutter in the circumferential transmission axial direction and a translational driven member fitted to the inner cutter by means of a lead screw structure; a handle comprises a handle body and a drive component mounted on the handle body, the drive component comprising a rotating active member used for driving the rotation of the rotating driven member and a translational active member used for driving the translational driven member; the rotating driven member drives the rotation of the inner cutter and forms a rotating speed differential with the translational driven member, the rotating speed differential driving the inner cutter to move axially and thereby implement sampling of the sampling groove.

Abstract: The present invention discloses a lateral grinding drill with continuously variable angle, including a tube body component and a grinding head arranged at the front end of the tube body component, the grinding head being configured to be driven to pitch and rotate on its own axis, the tail end of the grinding head is articulated to the inner tube body along the circumferential direction in a form of transmission, and a flexible transmission part is arranged at least on the front end of the inner tube body, which is configured to be articulated to the tail end of the grinding head and be able to transmit torque. The present invention adopts a direct articulated structure to transmit the transmission between the inner tube body and the grinding head, and can implement pitching motion. A flexible transmission structure is used to compensate the axis deviation caused by the pitching and driving.

Abstract: The power handpiece for orthopedic drilling and sawing according to the present application at least includes a handle housing, a clamping assembly for clamping a cutting tool assembly, a power motor for outputting power and driving the cutting tool assembly to perform drilling and sawing operations, and a switch assembly for controlling power output of the power motor, wherein the power motor is connected to an external power source. The power machine utilizes an external power source which can be a large-scale accumulator or city electricity, thereby avoiding the situation of power failure or low power which is prone to occur in the operation, and ensuring the smooth performance of the operation, reduce the quantity of heat of the handle, reduce the overall weight of the device, make the device portable and easy to operate, and improve the efficiency of the operation.

Abstract: The present invention discloses a lateral grinding drill with continuously variable angle, including a tube body component and a grinding head arranged at the front end of the tube body component, the grinding head being configured to be driven to pitch and rotate on its own axis, the tail end of the grinding head is articulated to the inner tube body along the circumferential direction in a form of transmission, and a flexible transmission part is arranged at least on the front end of the inner tube body, which is configured to be articulated to the tail end of the grinding head and be able to transmit torque. The present invention adopts a direct articulated structure to transmit the transmission between the inner tube body and the grinding head, and can implement pitching motion. A flexible transmission structure is used to compensate the axis deviation caused by the pitching and driving.