Adjustable button cinch anchor orthopedic fastener

Details Adjustable button cinch anchor orthopedic fastener Adjustable button cinch anchor orthopedic fastener

1996-02-14

2000-12-19

Buiz, Michael

Surgery

Instruments

Surgical mesh, connector, clip, clamp or band

606 72, 606 73, 411344, 411352, 411353, 411947, A61B 1704

Patent

active

061622346

ABSTRACT:
An orthopedic fastener device is based on a strong central shaft that is threaded in a one end region and that, in one embodiment, presents a ramp surface in the other end region. The ramp end is inserted down-hole a bore in bone while an expandable first collet having bendable circumferential flukes is snug to the shaft, presenting a diameter less than the bore. Partial axial withdrawal of the shaft from the bore forces the first collet into and against the shaft's ramp region, causing the collet's flukes to splay and strongly compressively engage the bone, thereby permanently anchoring the fastener's first end. Soft tissue, normally a ligament, is slipped over the shaft region extending beyond the bone, and is optionally grasped by a toothed washer. Another, second, split collet--initially expanded in its internal diameter that has and presents threads--slides along the shaft so as to compress the ligament in position against the bone. A sleeve is forcibly slid over the second split collet by use of a tool so as to contract the second split collet against the shaft, locking tight the ligament against the bone at the position of the bore. The second collet may thereafter be rotated on the shaft in the manner of a button or screw so as to variably compress the ligament. In another embodiment a ring, attached to the threaded shaft, slips and attaches a tendon or ligament, attached to a first bone, that is pulled through a hole in a second bone. Rotation of the split collet as slid upon the shaft and lodged against the second bone's surface serves to tension the ligament between the ring and the first bone. Any and all parts may be made from bio-absorbable materials.

REFERENCES:
patent: 255428 (1882-03-01), Grahm
patent: 590294 (1897-09-01), Archer
patent: 5269809 (1993-12-01), Hayhurst et al.
patent: 5370661 (1994-12-01), Branch
patent: 5584834 (1996-12-01), Errico et al.
patent: 5626590 (1997-05-01), Wilk

Affiliated with

Also associated with

Rating

Adjustable button cinch anchor orthopedic fastener does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adjustable button cinch anchor orthopedic fastener, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjustable button cinch anchor orthopedic fastener will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-267585