Abstract: An augmented reality guidance system for guiding surgical operations on an articulating portion of a bone includes a tracking element to be attached to the articulating portion and-having a surface bearing against the portion that is custom-designed from a virtual model , and a three-dimensional reference mark ; a probe with a three-dimensional reference mark for probing at least three regions of a portion apart from the cartilage area; a camera for displaying and tracking the reference marks ; and a processing system for processing virtual bone model data and real-time image data from the camera to determine the position and relative direction of the tracking element and probe, to display on a display device , a three-dimensional virtual representation of a geometric datum relating to the bone model having position and direction determined by the position and direction of the tracking device and corrected after probing.

Abstract: The invention relates to a shoulder prosthesis comprising a diaphyseal part extending along a diaphyseal axis and on which an epiphyseal part is mounted, the epiphyseal part having an upper face which is inclined along a front plane with respect to the diaphyseal axis, and a lower central face bearing against a complementary upper face of the diaphyseal part. According to the invention, the epiphyseal part is reversible by rotation through 180° about an axis normal to the lower central face bearing against the epiphyseal part to modify the inclination of the upper face of the epiphyseal part.

Abstract: The invention relates to a fixation system between a medical device and at least one portion of a bone, characterised in that it comprises an elongate portion intended to be inserted into the bone, in particular into the medullary cavity and/or into the proximal or distal ends, the elongate portion having a wall consisting of meshes through which at least one fixing member can pass, according to a position and orientation that are not predefined, and which apply, by elastic, plastic or elastic-plastic deformation, a transverse and/or axial pressure force onto the fixing member, the fixing member being intended to also pass through the portion of the bone in order to ensure rigid fixation between the bone and the medical device.

Abstract: The invention relates to a set (1) of standard or tailor-made disposable instruments for a surgical operation on a patient, said set comprising at least two components (5) connected to each other by at least one connecting tab (6), which is connected separably to said components (5).

Abstract: The invention relates to a set (1) of standard or tailor-made disposable instruments for a surgical operation on a patient, said set comprising at least two components (5) connected to each other by at least one connecting tab (6), which is connected separably to said components (5).

Abstract: The jig includes bearing portions capable of engaging, only on the anatomical bone structure of the patient, with the front and rear edges of the socket, said portions having temporary positioning and attaching arrangements defining contact surfaces engaging with said front and rear edges, and said portions being formed from an area for connecting with a gripping sleeve arranged to act as a bore guide, wherein the positioning and orientation of the sleeve are predetermined relative to a three-dimensional coordinate system specific to the scapula and resulting from a peroperative plan translated via a bore axis defined by a vector and an origin that is the center of the socket, wherein both the vector and the origin give said orientation to the customized placement jig.

Abstract: A cup intended to interact with a prosthetic humeral head has a generally circular shape and positioning and anchoring devices for embedding the cup in an anatomical glenoid cavity in such a way that a load-bearing and sliding surface of the cup is integrated into the continuity of the anatomical cavity so as to be perfectly congruent with the humeral head.

Abstract: The jig includes bearing portions capable of engaging, only on the anatomical bone structure of the patient, with the front and rear edges of the socket, said portions having temporary positioning and attaching arrangements defining contact surfaces engaging with said front and rear edges, and said portions being formed from an area for connecting with a gripping sleeve arranged to act as a bore guide, wherein the positioning and orientation of the sleeve are predetermined relative to a three-dimensional coordinate system specific to the scapula and resulting from a peroperative plan translated via a bore axis defined by a vector and an origin that is the center of the socket, wherein both the vector and the origin give said orientation to the customized placement jig.

Abstract: A cup intended to interact with a prosthetic humeral head has a generally circular shape and positioning and anchoring devices for embedding the cup in an anatomical glenoid cavity in such a way that a load-bearing and sliding surface of the cup is integrated into the continuity of the anatomical cavity so as to be perfectly congruent with the humeral head.