Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
91 words
A device for anchoring a ligament or tendon prosthesis (3) to a bone by means of a screw (2), said prosthesis being composed of fibres and being provided with end loops (3a), characterised in that it comprises a pulley (1, 101) with a groove (10, 11) able to receive an end loop [3a) and perforated, parallel to its axis, with an eccentric screw passage (14; 114, l24), one side of the pulley (1, 101) being provided with irregularities (11, 12, 13; 111, 112, 313) adapted to become incorporated into the bone.
Claim 2
Dependent Claim
14 words
A device according to claim 1, characterised in that the screw (2) is self-tapping.
Claim 3
Independent Claim
22 words
A device according to either of claims 1 and 2, characterised in that the groove (10, 110) is of substantially semicircular section.
Claim 4
Independent Claim
24 words
A device according to any of claims 1 to 3, characterised in that the irregularities are conical points (11, 12, 13, 111, 112, 113).
Claim 5
Dependent Claim
34 words
A device according to claim 4, characterised in that the conical points (11, 12, 13; 111, 112, 113) are disposed around a circumference centred on the pulley axis and are angularly spaced 120° apart.
Claim 6
Independent Claim
29 words
A device according to either of claims 4 and 5, characterised in that the conical points (11, 12, 13; 111, 112, 113) form the end of separate cylindrical studs.
Claim 7
Independent Claim
38 words
A device according to any one of claims 1 to 6, characterised in that the pulley (101) is in two axially juxtaposed parts (101a, l0lb) with a joint line (110a, 120) following the bottom of the groove (110).
Claim 8
Dependent Claim
58 words
A device according to claim 7, characterised in that a first portion (101a) comprises a cylindrical projecting boss (115) having the same axis as the pulley and of a smaller diameter than the bottom of the groove, the second portion (101b) comprising a recess (125) adapted to fit on to the boss (115) of the first portion (101a).
Claim 9
Independent Claim
29 words
A device according to claims 6 and 8 taken together, characterised in that the studs carrying the points (111, 112, 113) are inserted in the first pulley portion (101a).
Claim 10
Independent Claim
35 words
A device according to any one of claims 1 to 6, characterised in that, parallel to its axis, the pulley (1, 101) comprises a profiled passage (15, 116, 126) adapted to receive a key end.
Claim 11
Dependent Claim
61 words
A prosthesis assembly comprising at least one anchoring device according to any one of claims 1 to 10, characterised in that the prosthesis comprises an odd number of strands between two end loops, the strands following a single thread of polyaryl amide formed by the condensation of phenylene diamide and isophthalic acid, each strand having been given an equal predetermined pretorsion.
Claim 12
Dependent Claim
16 words
An assembly according to claims 11, characterised in that each end loop has a thread lining.