Spinal osteosynthesis device
AssigneeJbs S.A.
InventorsZoltan Csernatony, Jean-Francois Jeanson
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Abstract
A spinal osteosynthesis device includes a plurality of implants, each having a yoke and an anchoring arrangement carried by the yoke for securing the implant to a selected vertebra. The device further has a connecting bar crossing each yoke; and a plurality of clamps tightening the bar to each yoke. Each clamp has a clamp body; and a pair of generally parallel-oriented claws spaced from one another by a slot and extending from the clamp body. The claws partially surround the respective yoke. The clamp body carries a tightening arrangement for rocking the clamp body about the connecting bar to tilt the claws toward the connecting bar so that the yoke is clamped thereagainst.
Claims14
A spinal osteosynthesis device comprising
- (a) a plurality of spaced, one-piece implants for attachment to selected vertebrae of a spine in a series therealong;
- each said implant being composed of
- (1) a yoke having opposite ends;
- and
- (2) anchoring means carried by said yoke at the opposite ends for securing the implant to a selected vertebra;
- (b) a connecting bar crossing each yoke and arranged to extend along a spine;
- and
- (c) a plurality of clamps tightening said bar directly to each of said yokes;
- each of said clamp having
- (1) a clamp body;
- (2) a groove provided in said clamp body;
- said bar being received in said groove;
- (3) a pair of generally parallel-oriented claws spaced from one another by a slot and extending from said clamp body;
- said claws partially surrounding a respective said yoke;
- and
- (4) tightening means mounted in said clamp body for rocking said clamp body about said connecting bar to tilt said claws toward said connecting bar for clamping said yoke against said bar.
A spinal osteosynthesis device comprising
- (a) a plurality of spaced, one-piece implants, being composed of
- (1) a yoke having opposite ends;
- and
- (2) anchoring means carried by said yoke at the opposite ends for securing the implant to a selected vertebra;
- (b) two connecting bars crossing each yoke and arranged to extend along a spine in a side-by-side relationship to one another;
- and
- (c) a plurality of clamps tightening said bars directly to each of said yokes whereby each of said yokes coupling said two connecting bars to one another;
- each said clamp having
- (1) a clamp body;
- (2) a groove provided in said clamp body;
- a respective said bar being received in said groove;
- (3) a pair of generally parallel-oriented claws spaced from one another by a slot and extending from said clamp body;
- said claws partially surrounding a respective said yoke;
- and
- (4) tightening means mounted in said clamp body for rocking said clamp body about said respective connecting bar to tilt said claws toward said respective connecting bar for clamping each said yoke against said bars.
Dependencies are inferred from the claim text.