Interference screw and cannulated sheath for endosteal fixation of ligaments
US5211647A · kind A · utility
504Cited by
8References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 19, 1992 |
| Grant date | May 18, 1993 |
| Priority date | — |
| Expiry date | Feb 19, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S606/916
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An interference screw and a cannulated sheath for fixating ligaments. A graft, attached between previously cut bone blocks, is placed under tension in a graft tunnel. The sheath has a cutout at one end such that during screw insertion, the graft is covered by the sheath and protected from the threads of the screw, while the bone to which the graft is being fixed is exposed to the threads of the screw. The screw is driven between the bone to which the graft is being fixed and a corresponding one of the bone blocks. The screw may be cannulated for insertion over a pre-positioned guide pin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.