Surgery – Instruments – Suture retaining means
Patent
1992-02-10
1992-10-20
Pellegrino, Stephen C.
Surgery
Instruments
Suture retaining means
606 73, 411395, A61B 1700
Patent
active
051566168
ABSTRACT:
A cannulated bone screw is illustrated that retains a knotted suture and which is anchored to bone. The cannulated bone screw comprises a biocompatible body having a proximal end and a distal end, and the body includes exterior screw threads for inserting and retaining the body into the bone. The body is cylindrical and has a passageway that extends axially therethrough. The passageway includes a central portion, a distal portion and a proximal portion. The central portion has a diameter less then the distal portion and is sized to receive a suture thread therethrough. The distal portion is sized to receive a suture thread knot. The suture thread knot received within the distal portion is retained by the central portion, which is sufficiently small to prevent the knot from being drawn therethrough. The proximal portion includes a hexagonal cavity for cooperating with an external drive tool for rotating the body and thereby driving the body into the bone.
REFERENCES:
patent: 4507817 (1985-04-01), Staffeld
patent: 4537185 (1985-08-01), Stednitz
patent: 4738255 (1988-04-01), Gable et al.
patent: 4976715 (1990-12-01), Bays et al.
patent: 5019079 (1991-05-01), Ross
patent: 5037422 (1991-08-01), Hayhurst et al.
patent: 5047030 (1991-09-01), Draenert
Meadows Bruce F.
Ogden William S.
Jackson Gary
Pellegrino Stephen C.
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