Surgical unit to be used in lithotripsy, comprises gas pressurized spring supporting and compensating motion of operating head

摘要

The device is assembled of a base (1), a carrying arm (2) exceeding horizontally from the base (1), a swivel arm (3) joined to the carrying arm (2) and the operating head (4) to be moved towards the body region to be treated from above or from below. The swivel arm (3) is provided with a rotating disk (7) at its upper end holding the piston rod (10) of a gas pressurized spring (8) which is joined to the carrying arm (2) with its opposite end (9).