| 摘要 |
The invention relates to a nail device (35, 50) for repairing bone defects, suitable to be attached to two main bone fragments (36, 37) and stretching out the bone defect, with the length of the device between the main bone fragments (34, 37) able to increase and/or decrease in a hydraulic progressive way, causing new bone tissue in the caused openings, the nail device (35) comprising: a proximal end part (40) provided with one or more proximal locking holes (4, 5) and a hydraulic active actuator (2), a distal end part (41) provided with a nail or bar (8) that can slide in and/or out; the nail (8) is provided with distal locking holes (9), and here between extends a double cylindrical housing (38) in which in the center the nail (8) is provided extendably and with a flexible supply pipe (1) for the supply of hydraulic fluid, removable attached to the hydraulic active actuator (2) with the flexible supply tube (1) preferably bolted to actuator (2). |
