The sensor (23) comprises a sensing transducer component (53) and a co-operable component (42).

A third edge is juxtaposed to the jaw section of said second cooperating member.

The upper beam comprises a cooperating member intended for sliding cooperation with the lower beam.

The first blade is removably juxtaposed to the jaw section of the first cooperating member.

The latching mechanism (200) includes a first member (210) disposed on the first housing segment and a cooperating second member (240) disposed on the second housing segment.

The spring or an element cooperating with the latter is in contact with the external surface of the pin.

A connector including two supporting elements (1 and 2) each supporting a series of contacts (6) such that each contact on one element engages a contact on the other element.

The implant (8) includes a first member (30) and a second member (30) arranged to move relative to each other by action of an expansion member (10), the first member being engageable with the vertebral body below the disc space.

The abutment or counterabutment surface may be arranged on a transversely deformable, resilient engaging element (30; 43; 46) which engages the corresponding surface in tension.

An interior surface (320) of the elastomeric material is to define a second seal (324) and a third seal (322) with a second external mating member (110) insertable into the sealing component.

An exterior side surface (304) of the elastomeric material is to define at least a first seal (306, 308) with a first external mating member (104) into which the sealing component is insertable.

The first and second walls include first (20) and second (24) cooperating elements respectively which are adapted to engage respective second and first cooperating elements of a similar structure.

At least one resilient member (10a; 10b) is manually accessible, and has a shape and a position enabling it to be disengaged from its cooperating member (10b; 10a) by a manual displacement.

At least one of the vertebrae engaging members moves outwardly from a collapsed position to engage the registration device to the endplates of the adjacent vertebrae.

The inventive connecting unit comprises a journal provided with at least two stops with a joint area arranged between the stops and a counter element interacting with the stops of the journal.