Medicrea Technologies

Medicrea International

Other

Jean-Luc Clement

Jean Taylor

Bernard Villaret

Vincent Fiere

Yves Adam

Patrizio Parisini

Afshin Aminian

The equipment includes at least one connecting bar, at least one flexible ligament, and at least one connector making it possible to connect the ligament to the connecting bar. The connector having a first conduit for engaging the connecting bar, equipped with a device for immobilizing the connector relative to the connecting bar, and a second conduit for receiving at least one strand of the ligament, having an insertion opening for this or these strands and an outlet opening for this or these strands, and equipped with devices for mobilizing the ligament relative to the connector. The second conduit is rectilinear between the insertion opening of the strand(s) of the ligament and the outlet opening. The second conduit has a transverse section adjusted to the transverse section of the strand(s) of the ligament that it is intended to receive, i.e. a transverse section just sufficient to allow sliding of the strand(s) of the ligament in the second conduit, but such that the strand(s) are in close contact with the walls delimiting the second conduit.

Vertebral osteosynthesis equipment

Equipment at least one anchoring assembly including a hook integral with a body, this body being passed through by a hole and capable of being connected to connection means making it possible to connect the anchoring assembly to a connection bar for connecting a series of vertebrae. The anchoring assembly has a continuous flexible ligament able to be engaged in the hole and to form a loop allowing the engagement of the ligament around a structure of a vertebrae or mounted on a vertabrae, and has stop means making it possible to immobilize this ligament in relation to the body.

A method for rotating a vertebra or vertebrae in a spine that is curved using a vertebral osteosynthesis device that includes polyaxial screws, linking rods, clamping parts, tightening nuts, and set screws. The method includes the steps of: implanting two series of the screws, clamping parts, and linking rods; completely tightening the tightening nuts of a first series of screws on the convex side of the spine curvature; completely tightening the set screws of a second series of screws on the concave side of the spine curvature; tightening the tightening nuts of the second series; and tightening the set screws of the first series.

Method for rotating a vertebra or vertebrae

Vertebral osteosynthesis equipment includes bony anchoring members, such as pedicular screws or hooks, at least one of which includes a proximal threaded stud for receiving a nut and a base portion for anchoring to a vertebra; linking rods, intended to be connected to these anchoring members and attached to the vertebrae by these anchoring members, parts for connecting these linking rods to the anchoring members, and extension pieces for engaging on the proximal stud(s) of the anchoring member(s) for running down connecting parts on this or these proximal stud(s) until they rest on the proximal zone(s) of the base portion(s) of the anchoring members. The proximal stud of at least one anchoring member and the extension piece intended to be used with this anchoring member include positioning elements for positioning the extension piece on the free end of the proximal stud, concentrically thereto.

Equipment includes bony anchoring members one or two linking rods, intended to be connected to the anchoring members, and parts for connecting the linking rod(s) to the anchoring members, at least one anchoring member including a proximal threaded stud and a clamping element for assembling a connecting part thereon, the connecting part including a clamping element for immobilizing the linking rod with respect thereto. The connecting part includes a rounded section for hugging a linking rod and two parallel branches having holes enabling engagement on the proximal threaded stud of the anchoring member; and the clamping elements may be engaged coaxially on the proximal threaded stud of the anchoring member, a first clamping element enabling the assembly of the connecting part on this proximal threaded stud and the second clamping element enabling to clamp both branches of this connecting part.

This equipment includes: The stud of at least one anchoring member and the extension piece used therewith include positioning elements.

Equipment includes bony anchoring members, one or two linking rods, intended to be connected to these anchoring members, and parts for connecting the rod(s) to the anchoring members; at least one anchoring member includes a proximal stud articulated with respect to a base portion enabling bony anchoring; clamping elements enable assembly of the connecting part on the anchoring member. The proximal stud includes a surface forming an axial stop, against which the connecting part is intended to rest, and the clamping elements clamp this connecting part against this surface which is positioned so that the connecting part, when clamped there against, is not clamped against the base portion so that there remains, after clamping, a possibility of articulated backlash of the proximal stud with respect to the base portion.

The invention concerns an equipment comprising two shoring rods, members for anchoring said two rods to the vertebrae, at least a crosspiece () in two parts () and members () assembling said crosspiece () to the shoring rods. The invention is characterised in that one of the crosspiece parts () comprises a spherical head () and a thread () adjacent to said head (); the other crosspiece part () comprises a spherical bulging end (), defining internally a spherical cavity () adapted to receive said head (), and each crosspiece () comprises a nut () designed to co-operate with said thread (), including further a spherical seat () with a shape matching that of the wall () delimiting the cavity (). The invention also concerns plates (for anchoring the equipment to the sacrum.

Vertebral arthrodesis equipment

An equipment includes at least a shoring rod and at least an anchoring assembly of the shoring rod to a vertebra; each anchoring assembly comprises a base integral with a hook which has substantially planar part, extending in a parallel plane, or forming a slight angle, less than 15 degrees, with the base. The base has a hole which runs right through it, having an oblong cross-section, and the anchoring assembly comprises a hook-shaped component whereof the part corresponding to the base of the hook is linked to a threaded rod capable of being engaged in the hole with the possibly of pivoting about an axis and of displacement in the plane, and capable of receiving a screw.

Growing community of inventors

La Colle sur Loup, France

Jean-Luc Clement