Neosteo

Maxime Dechelette

Guillaume Derouet

Sylvain Sorin

A medical implant () designed to enable bony fusion between a first bone () and a second bone (), said implant being in the form of an elongate part comprising, extending along the longitudinal axis of the part, a head () and a body () spaced apart from each other by a connection zone () connecting the head () to the body (), said head () being suitable for being inserted into the first bone (), said body () being suitable for being inserted into the second bone (), said body () being a hollow body that is slotted longitudinally along at least a portion of its length in order to define at least three elastically deformable longitudinal tabs () by means of which said body () is suitable for being inserted into the second bone (). Each longitudinal tab () of the body () is an arcuate tab () that presents an outer face (), i.e. directed towards the outside of the body (), extending longitudinally in curved manner with curvature having its concave side directed towards the outside of the body ().

Medical implant, and kit comprising such a medical implant and a gripper for said medical implant

A polyaxial bone fastener assembly () comprising a plate () with at least one through orifice (), and at least one fastener screw () for fastening the plate () to a bone, the body () of the screw () being suitable for passing through the orifice (), and its head () being suitable for being retained in the orifice () of the plate () by bearing contact between complementary male and female spherical surfaces (), the female spherical surface () that is arranged in the orifice () of the plate () forming a seat within which the male spherical surface () is suitable for coming to bear when the screw () is inserted in the orifice (). On going from the bottom face () towards the top face () of the plate (), the bore of the orifice () in the plate () comprises: an inner collar (); a cylindrical portion (); and the seat-forming female spherical surface (); and on going between its male spherical surface () and its zone () connecting to the body () of the screw (), the head () of the associated fastener screw () has a threaded portion () with a single-start thread, the thread being interrupted in at least two zones () in order to enable the inner collar () of the orifice () in the associated plate () to be machined while the screw () is being driven to turn inside said orifice () until it reaches a position of bearing contact between the male and female spherical surfaces ().

Polyaxial bone fixation assembly

A subtalar implant for arthroereisis of the talocalcaneal joint. The implant is intended to be inserted into the talocalcaneal joint via its lateral orifice and has an oblong shape that extends longitudinally along an axis of insertion of the implant. The implant includes: a head with the shape of a cone of revolution centred on the axis of insertion; an anchoring thread; and a rod having the shape of a cylinder of revolution. The rod has, on its surface, the anchoring thread and being configured to be inserted up to the axis of rotation of the talocalcaneal joint. The head has, on its radially outer surface, a retaining element for retaining the implant in rotation about the axis of insertion, the retaining element exerting retention against a colonising tissue.

Subtalar implant for arthroereisis of the talocalcaneal joint

A kit of the type including at least an implant (), a gripper () for gripping the implant (), and a storage element () for storing the gripper () and its associated implant (), the storage element () including at least one reception location () for receiving the gripper () and its associated implant (), and a tracer element () for tracing the implant (). The tracer element () is sandwiched between the gripper () and the storage element (), when the gripper () and its associated implant () are in their stored state in a reception location () of the storage element ().

Assembly including at least one implant, one gripping device and one element for the traceability of the implant, and method for traceably handling the implant of such an assembly

A kit includes: an implant having a distal end for inserting the implant into the body; and a gripper in the form of a hollow elongate body that is open at at least one end, that is slotted longitudinally, and made, at least partly, of an elastically-deformable material, the slot opening out into the axial cavity of the body, inside which the implant is suitable for insertion, with its distal end projecting from the 'distal' end of the body. The kit includes at least one reception sheath for receiving the distal end of the implant in order to separate the implant from its gripper by moving the sheath and the gripper relative to each other in the direction that breaks the alignment between them, the sheath has a bearing seat against which the implant bears both when the implant is inserted in the sheath, and when separated from its gripper.

Assembly including at least one implant and a gripping device, and method for preparing for fitting the implant of an assembly of the aforementioned type

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Petit Mars, France

Maxime Dechelette