Intervertebral connecting device
AssigneeSofamor S.N.C.
InventorHenry Graf
Life of this patent
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Abstract
The invention concerns a device comprising at least a fixed element (2), secured to a vertebra, at least a mobile element (10), capable of moving relative to the or each fixed element, and at least an intermediate element (22) for articulating the mobile element relative to the fixed element. The intermediate element (22) is received in an internal volume of the mobile element % (10), and the fixed element (2) is received at least partly in an internal volume (26) of the intermediate element (22). Means are provided for securing, at least in translation, said intermediate element (22) to the fixed element (2), comprising the periphery of the substantially rigid outlet of the internal volume of the intermediate element.
Claims19
An intervertebral connecting device, which is intended to connect at least two vertebrae together, this device being characterized in that it includes:
- at least one stationary element (2;
- 2′;
- 2″;
- 2′″;
- 52, 53;
- 152, 153), connected with a vertebra or the sacrum,
- at least one mobile connecting element (10;
- 10′;
- 10″;
- 10′″;
- 60;
- 110;
- 165;215;265;
- 315) capable of moving with respect to the stationary element or each stationary element,
- as well as at least one intermediate element (22;
- 22′;
- 22″;
- 22′″;
- 72;
- 172, 172′) allowing the articulation of the mobile element or each mobile element with respect to the stationary element or each stationary element,
- in that the intermediate element or each intermediate element is received in interior volume (16;
- 16′;
- 116;
- 167, 169;
- 217, 227;
- 327) of said mobile element (10;
- 10′;
- 10″, 10′″;
- 110;
- 165;
- 215;
- 265;
- 315) or of said stationary element (52, 53),
- in that stationary element (2;
- 2′;
- 2″;
- 2′″;
- 152, 153) or mobile element (60) is received at least partially in interior volume (26;
- 26′) of the intermediate element,
- and in that it is provided with some means allowing the connection, at least in translation, of said element (2;
- 2′, 2″;
- 2′″;
- 152, 153) or of said mobile element (60) with respect to said intermediate element, these means of connection in translation including the periphery of outlet (27), which is essentially rigid, of interior volume (26) of intermediate element (22).
A device according to any one of the preceding claims, characterized in that the stationary element is pedicle screw (2;
- 2′;
- 2″;
- 2′″;
- 52, 152).
A device according to any one of the preceding claims, characterized in that the stationary element is plate (53, 153) which can be attached on the sacrum.
Dependencies are inferred from the claim text.