| 摘要 |
PROBLEM TO BE SOLVED: To provide a surgical screw that increases the hold on a flexible member and prevents pullout of the flexible member from a bone.SOLUTION: There is provided a surgical screw for anchoring a flexible member to a bone. The screw may include a first thread having a continuous helical ridge that curves around the shaft of the screw. A set of second threads may be disposed on, and follow, the continuous helical ridge around the screw. The set of second threads may have the same periodicity as the first thread. The first thread may comprise both a sharp portion and a blunt portion to prevent damage to the flexible member.SELECTED DRAWING: Figure 8 |
