一种配合骨水泥使用带线锚钉

Abstract

本实用新型提供了一种配合骨水泥使用带线锚钉，包括锚钉、插入器、注射器、缝线；锚钉设有中心孔道，其侧壁设有多个与中心孔道连通的骨水泥通孔，其侧壁靠近首端的位置对称设置有两个与中心孔道连通的过线孔；中心孔道内设有与两个过线孔90°角错开的挂线柱；插入器包括管主体和设于管主体首端的插入管；插入管插入中心孔道内且位于过线孔的后方，插入管与中心孔道间隙配合；注射器包括推杆和设于推杆末端的手柄；推杆由管主体尾端插入管主体和插入管内；缝线缠绕在挂线柱上，缝线两端由中心孔道末端伸出。本实用新型所述的配合骨水泥使用带线锚钉结构设计合理、操作流程简便、骨水泥填充效果好、固定效果佳。

Claims

1. A suture anchor for use with bone cement, comprising: include: An anchor pin, wherein a central channel is formed along its axial direction; the sidewall of the anchor pin has multiple bone cement through holes communicating with the central channel; two wire passage holes communicating with the central channel are symmetrically arranged on the sidewall of the anchor pin near the head end, and the wire passage holes and the bone cement through holes are staggered on the axis; a wire hanging post is provided in the central channel and arranged radially, and the wire hanging post is arranged on the same horizontal plane and staggered from the two wire passage holes at a 90° angle; An inserter, comprising a tube body and an insertion tube disposed at the head end of the tube body; the insertion tube is inserted into the central channel and located behind the wire passage hole, the insertion tube and the central channel are in clearance fit, the clearance being a bone cement channel; A syringe, comprising a plunger and a handle at the end of the plunger; the plunger is inserted from the tail end of the tube body into the tube body and the insertion tube to push out bone cement from the tube body and the insertion tube; A suture thread, which is wound around the hanging post, with both ends of the suture thread extending from the end of the central channel.

2. A suture anchor for use with bone cement according to claim 1, wherein: The anchor has a pointed tip and a self-tapping thread on its outer side wall; the multiple bone cement through holes are divided into two symmetrical groups, and the multiple bone cement through holes in each group are equally spaced along the axial direction, and the center of each bone cement through hole is located at the crest of the thread.

3. A suture anchor for use with bone cement according to claim 2, wherein: The bone cement through holes are located behind the wire through holes, and the two sets of bone cement through holes are staggered from the two wire through holes at a 90° angle.

4. A suture anchor for use with bone cement according to claim 1, wherein: The central channel is hexagonal near its end, and the rest is circular; the insertion tube is hexagonal near the tube body, fitting with the hexagonal channel, and the rest is circular, fitting with the circular channel.

5. A suture anchor for use with bone cement according to claim 1, wherein: The insertion depth of the insertion tube into the central channel is between the end position of the wire hole and the position at half the depth of the central channel.

6. A suture anchor for use with bone cement according to claim 1, wherein: The central channel has thread arrangement channels on both sides, which are coaxial with the two thread holes.

7. A suture anchor for use with bone cement according to claim 6, wherein: The tube body has thread grooves on both sides and in the same direction as the two thread arrangement channels.

8. The suture anchor used in conjunction with bone cement according to claim 7, characterized in that: The inserter also includes a hand support portion located near the end of the tube body. The hand support portion includes an outer shell covering the outer wall of the tube body and two finger fixing positions symmetrically located on both sides of the outer shell. Each of the two finger fixing positions is provided with a suture wrapping groove. The two suture wrapping grooves are respectively located on the same side as the two thread passing grooves. The outer surface of the outer shell is provided with a suture locking groove.

9. A suture anchor for use with bone cement according to claim 1, wherein: The push rod is equipped with markings.

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