| 摘要 |
The present invention relates to an intramedullary nail distal targeting device (20) adapted to be installed to an external jig system (A) having a proximal attachment (B) to support an intramedullary nail (C) thereon and an extension arm (D) secured to the proximal attachment (B), the nail distal targeting device including a drill guide (21) being defined by an abbreviated cylindrical body (23) having at least a pair of guide slots (24, 24′) each of the guide slots (24, 24′) having a scalloped inner surface (25), an attaching mechanism (22) being provided at the upper portion of the drill guide (21), the attaching mechanism (22) secured in a rotating and sliding manner to a distal end of the extension arm (D) and at least a pair of guide sleeves (10, 10′) being telescopically fitted correspondingly into the slots (24, 24′) of the drill guide (21), each of the guide sleeves (10, 10′) having a scalloped outer surface to correspondingly fit into the guide slots (24, 24′), each of the guide sleeves (10, 10′) being provided with aligned and spaced apart drill-guiding holes (13, 14, 15) extended between the opposed end portions thereof. |
