Stryker Spine

Other

Stryker European Holdings I LLC

Cédric De Coninck

Cécile Vienney

Pierre Henri Saint-Martin

Pierre Henri Saint Martin

Tan-Loc Pham

Jerome Despiau

A retaining mechanism is disclosed, which comprises a plate including a first surface adapted to engage with an implant and a second opposing surface, the plate having mechanically-weakened areas, such that the plate is compressible from a first dimension to a second reduced dimension via the weakened areas, wherein the plate includes at least one ledge adapted to engage with a recess in the implant to prevent a fixation member inserted into the implant from backing out. A tool is also disclosed for compressing and inserting the retaining mechanism into engagement with the implant, as are respective methods of compression and insertion of the retaining mechanism into engagement with the implant.

Retaining mechanism, implant, and tool

An orthopedic bone plate system includes a bone plate for placement adjacent one or more vertebral bodies. The system further includes a locking element including a compression member and a fixation member, the compression member having an aperture and a deformable portion. Also included is a bone fastener having a bone engaging portion and a stem portion. The stem is slidably receivable within the aperture of the compression member while the locking member is receivable within an aperture of the bone plate. As the compression member is brought into proximity of a vertebral body along the longitudinal axis of the bone fastener, an increasing force is exerted against the fixation member and translated to the bone plate. The resultant force is translated back to the fixation member to the compression member which causes the deformable portion of the compression member to clamp the bone fastener relative to the bone plate.

Multi-axial bone plate system

An orthopedic bone plate system having a bone plate for placement adjacent one or more vertebral bodies. The system further includes a locking element including a compression member and a fixation member wherein the compression member includes an aperture and at least one deformable portion. A bone fastener is also included in the present system which includes a bone engaging portion and a stem portion. The stem is capable of being slidably received within the aperture of the compression member while the locking member is capable of being received within an aperture of the bone plate. As the compression member is brought into proximity of a vertebral body along the longitudinal axis of the bone fastener, an increasing force is exerted against the fixation member and translated to the bone plate. The resultant force translated back to the fixation member to the compression member which causes the deformable portion of the compression member to clamp the bone fastener relative to the bone plate.

A bone fixation assembly for use in spinal fixation surgery is disclosed. The bone fixation assembly has a rod receiving portion, a sliding component, a first locking element, and a second locking element. A method of fixing two vertebrae with respect to each other is also disclosed.

Variable offset connectors and bone fixation methods

This invention relates to a spinal osteosynthesis assembly comprising the head of an anchoring member consisting of at least one arm and a tool for fixing said head to a spinal osteosynthesis system. The inventive assembly is characterized in that the tool can hold the head by creating at least one lateral support on at least one lateral edge of the arm and an additional support on the head in the opposite direction of the lateral support.

Growing community of inventors

Cestas Gazinet, France

Cédric De Coninck