B25B23/101

Push-off driver and method for inserting bone screws

A method and device for inserting screws into a patient, such that when the device is removed the device does not stick to the screw. The device, being a push-off driver, may have a handle, an inner driver, and a threaded driver sleeve having a button mechanism and a plurality of spheres, and an inner sleeve. The method includes the steps of assembling a push-off driver attaching a bone screw to the push-off driver inserting the bone screw and detaching the bone screw from the driver by unthreading the threaded driver sleeve from the polyaxial screw which causes the spheres in the recess of the inner driver to back up against the start of the recess and causing the threaded driver sleeve to push-off the polyaxial screw from the inner driver.

Screw Holder
20250289101 · 2025-09-18 · ·

A screw holder for holding a screw to be driven by a screwdriver. The screw holder may include a longitudinal holder body with first and second ends. A through-hole may be provided from the first to the second end, with the first end having an opening configured to receive a blade and shank of a screwdriver, and the second end having an opening configured to receive the screw. The second end opening may progressively taper towards the first end. The through-hole may be configured to allow the blade of the screwdriver the engage with the head of the screw within the holder body.

Headless compression screw driver system

A compression screw driver system including a drive member having a shaft extending from a proximal end to a distal end. A drive selection member is positioned about the shaft and is axially moveable along the shaft between an engagement position and a disengaged position. A distal portion of the drive selection member defines a first engagement structure. A compression sleeve is positioned over the distal end of the shaft. The proximal end of the compression sleeve defines a second engagement structure which complements the first engagement structure and the distal end of the compression sleeve defines a contact surface. In the engagement position the first and second engagement structures are engaged and the compression sleeve rotates with the drive member and in the disengaged position the first and second engagement structures are disengaged and the compression sleeve remains stationary while the drive member rotates.