An arthritis correction and fixation device is used to connect distal and middle phalanges of a finger. The arthritis correction and fixation device includes a first unit, a second unit and a connection unit. The first unit connects with the distal phalange and has a first threaded portion and a first connecting portion. The second unit connects with the middle phalange and has a second threaded portion and a second connecting portion. The first connecting portion and the second connecting portion are connected through the connection unit, so that the first unit and the second unit can actuate relative to each other. When the first threaded portion is rotated, the first connecting portion drives the second unit to move together in a direction away from the first threaded portion, thereby changing a distance between the distal and middle phalanges.

The invention relates to a method and a device for producing an implant, wherein a natural bone microstructure of a natural bone region is detected (S1), an implant region in the natural bone region is marked (S2), the detected bone microstructure in the marked implant region is analysed to determine reproduction parameters (S3), and on the basis of the determined reproduction parameters, an artificial microstructure for producing the implant is created (S4).

Bone joint implants are described herein. The bone joint implants may comprise a metallic proximal platform configured for translational motion on the trapezium bone; a distal stem configured for intramedullary engagement with an end of the first metacarpal bone; an articulating coupling between the proximal platform and distal stem; and a proximal non-metallic wear surface and a distal non-metallic wear surface.

The medical implant (1) according to the present invention comprises a first, generally elongate portion (20) extending along the longitudinal axis A, intended to be inserted into the first bone (P1) and comprising first attachment means (24), and a second, also elongate, portion (30) following another longitudinal axis B, intended to be inserted into the second bone (P2) and comprising second attachment means (34), wherein said first and second portions (20, 30) are connected together via a connecting bridge (40) which is centered about the orthonormal axes X, Y, Z of said implant (1), providing for at least one axial offset of the second portion (30) with respect to the first portion (20) such that the longitudinal axis B of the second portion (30) is positioned in at least one direction forming an angle () relative to the longitudinal axis A of the first portion (20) and is offset by at least a certain distance along at least one of the axes XX, YY and ZZ of the connecting bridge (40) in order to avoid any offset between the outer upper portions of the first bone (P1) and the second bone (P2).

A resorbable implant for osteosynthesis for stiffening in a central joint (e.g., the proximal interphalangeal joint referred to as PIP) during arthrodesis or for stiffening in an end joint (e.g., the distal interphalangeal joint referred to as DIP) during arthrodesis and for osteosynthesis and stabilization of fractures of small bones of the human skeleton includes two shafts placed against each other. At least one fixing aid is located between the shafts. The fixing aid protrudes beyond a diameter of the shafts. Each shaft may have longitudinal grooves and transverse grooves. The implant is a magnesium-based material which can be resorbed by the human body. The disclosed implant has a relatively high tensile strength, excellent stability, optimal healing properties, and an optimally adapted resorption speed.

Implants suitable for use in a carpometacarpal joint includes an upper surface, a lower surface, and sidewalls extending between the upper surface and the lower surface. The implant includes hydrogel material such as polyvinyl alcohol (PVA) hydrogel. Kits can include systems for preparing an implantation site, creating a cavity, and/or deploying the implant. Methods of treating a carpometacarpal joint include deploying an implant in a recess in a carpometacarpal bone.

Bone joint implants are described herein. The bone joint implants may comprise a metallic proximal platform configured for translational motion on the trapezium bone; a distal stem configured for intramedullary engagement with an end of the first metacarpal bone; an articulating coupling between the proximal platform and distal stem; and a proximal non-metallic wear surface and a distal non-metallic wear surface.

A flexible bone implant includes a proximal stem having a proximal end, a distal end, and a proximal conduit extending from the proximal end to the distal end of the proximal stem, whereby the proximal conduit is open at both the proximal and distal ends of the proximal stem. The implant includes a distal stem having a proximal end, a distal end, and a distal conduit extending from the proximal end to the distal end of the distal stem, whereby the distal conduit is open at both the proximal and distal ends of the distal stem. The implant includes a flexible hinge interconnecting the distal end of the proximal stem with the proximal end of the distal stem for allowing the proximal and distal stems to flex relative to one another. A proximal stem protective tube is disposed within the proximal conduit of the proximal stem and has a length that matches the length of the proximal conduit, and a distal stem protective tube is disposed within the distal conduit of the distal stem and has a length that matches the length of the distal conduit. The proximal stem, the distal stem and the flexible hinge comprise a unitary structure made of a polymer material.

Bone joint implants are described herein. The bone joint implants may comprise a metallic proximal platform configured for translational motion on the trapezium bone; a distal stem configured for intramedullary engagement with an end of the first metacarpal bone; an articulating coupling between the proximal platform and distal stem; and a proximal non-metallic wear surface and a distal non-metallic wear surface.

An arthrodesis implant (1) for promoting the osseous fusion of a first bone (2) with a second bone (3), the implant (1) comprising a primary component (4) including a primary anchoring body (5) and a male connector (6), and a secondary component (7) including a secondary anchoring body (8) and a female connector (9), the female connector (9) comprising: a main body (10) which extends longitudinally between a rear end (11) linked to the secondary anchoring body (8) and an opposite front face (12), and which has a lateral wall (14) linking the rear end (11) to the front face (12), a housing (15) formed within the main body (10) and configured to receive the male connector (6) in order to link together the primary (4) and secondary (7) components, the female connector (9) further comprising an opening (18) which is formed in the main body (10), in communication with the housing (15), and which extends continuously on both the front face (12) and the lateral wall (14), and which is sized and configured to enable a lateral introduction of the male connector (6) into the housing (15) via the opening (18), each of the primary (4) and secondary (6) components forming an integral part made in one piece, and the primary (5) and secondary (8) anchoring bodies being respectively designed to ensure the insertion and anchoring of the primary component (4) into the first bone (2), and of the secondary component (7) into the second bone (3), by impaction or by forced wedging.