Mathys Ag Bettlach

Mathys Medizinaltechnik Ag

Invibio Knees Limited

Mathys Medical Ltd.

Daniel Delfosse

Walter Supper

Christoph Fankhauser

Alessandro De Cesaris

Clemens Dransfeld

Christian Rytka

Anton Cotting

Peter Christen

Beat Grunder

Joseph David Lipman

Russell F Warren

Timothy M Wright

Stefan Eggli

Donald L Bartel

Reto Lerf

Adam Briscoe

Dirk Salomon

Sandro Kohl

Enzo Barbieri

Renzo Renzini

Ulrich Wehrli

Frank Hoffman

Bernhard Gyssler

Tobias Wyss

Marianne Herwig

Irene Sinz

Ian Revie

Stephen Bonham

Thomas L Wickiewicz

Claudia Ortmann

Sabine Begand

Nadine GRÄTZ

Hugo Mathys

Samuel Schenk

Christoph Frankhauser

Alessandro Decesaris

Christoph Gross

Martin Liebelt

Carolin Witt

Thomas Oberbach

A system () for a controlled stressing of a reconstructed or re-natured ligament of a human or animal body comprises an anchoring element () for implantation in a first bone (), at least one connecting element () and a holding element (), which fixes the at least one connecting element () in a second bone. According to the invention, an elastomer element () is arranged in the anchoring element and/or in the connecting element () and provides a defined elastic action through the cooperation of elastomer element () with the connecting element ().

Implantable system with elastic components

The invention relates to a femoral component () of a knee replacement assembly. The knee replacement assembly is arranged to articulate about an articulation axis (X). The femoral component comprises an outer surface (), wherein the outer surface is arranged to define a replacement condyle; and an inner surface (), opposed to the outer surface, wherein the inner surface is adapted for attachment to a prepared distal femur. The inner surface comprises portions () provided with mutually-parallel ridges () and grooves (). The ridges and grooves are arranged to provide an increased or reduced stiffness of the femoral component when cantilevered about the articulation axis compared with a stiffness of the femoral component when cantilevered about a transverse axis.

Replacement knee component

The invention relates to a system for controlled loading of a reconstructed human or animal tissue during the healing phase, comprising an anchor element () for implanting in a first bone (), at least one connecting element (), and one retaining element () for the at least one connecting element () on a second bone (). The anchor element () and/or the connecting element () and/or the retaining element () are made of self-dissolving bioresorbable material.

Implantable system having a dissolution mechanism upon recovery

A knee joint endoprosthesis () for forming an articulation between a femur and a tibia includes a femur component (), which is connected to the femur, a tibia component (), which is connected to the tibia, and an intermediate element () which is mounted between the tibia component () and the femur component (). This intermediate element lies against the femur component () with a modular sliding surface () which includes a lateral sliding surface () and a medial sliding surface (), and can be connected in a releasable manner to the tibia component (). The lateral sliding surface () and the medial sliding surface () of the intermediate element () have different sagittal cross-sectional profiles.

Joint prosthesis with intermediate element having differently formed sliding surfaces

A ligament tensing device () for activating a ligament and/or capsule system during implantation of a joint implant, comprising a base body () having a first lug () with a distal bearing surface () resting upon a first bone, and a second lug () resting upon a second bone with a proximal bearing surface () thereof. The second lug () is displaceable in an anterior-posterior and/or medial-lateral direction parallel to the first lug ().

Ligament tensing device with displaceable lug

The invention relates to a joint prosthesis, especially a knee joint prosthesis, for establishing an articulated connection between a first bone and at least one second bone. The inventive prosthesis comprises a first component () that is at least indirectly linked with the first bone, at least one second component () on which the second bone at least indirectly supports itself and which is movably mounted on at least one bearing surface () of the first component (), and a connecting element () that interlinks the first component () with the second component (). The connecting element () comprises an elastically deformable element () that facilitates a deflection of the first component () relative to the second component () from an initial position. When the first component () is deflected, the elastically deformable element () generates a restoring force that acts upon the first component () and restores the first component () to the initial position.

Joint prosthesis

A prosthesis for repairing a knee is made with an insert sandwiched between a femoral component and a tibial tray. The parts are shaped so that both the femoral component and the tibial tray will slidingly interface with the insert during motion of the knee. At regions where the femoral component interfaces with the insert during extension and during an initial range of flexion of the knee, the femoral component's radius of curvature (R) for flexion rotation is larger than its radius of curvature (R) for varus/valgus rotation. In a preferred embodiment, the surface of the tibial tray is convex and spherically curved, and the insert is free to move in both the posterior-anterior direction and the medial-lateral direction with respect to the tibial tray.

Self-aligning knee prosthesis

The invention relates to a positioning instrument () for inserting an extension shell () into a human or animal bone, especially a pelvic bone. Said instrument comprises a fixing device () for fixing the extension shell () to the positioning instrument (), and a displacement device () for displacing a disc element () of the positioning instrument () at least essentially axially in relation to the extension shell () fixed to the fixing device (). Said disc element () co-operates with beveled surfaces (to) of the extension shell () during the displacement, in order to tighten the extension shell (). Furthermore, the disc element ()-viewed in the direction of insertion ()-does not project beyond the radially furthest projecting elements () of the tightened extension shell ().

Positioning instrument for inserting an extension shell

The invention relates to an expandable socket () for a hip joint endoprosthesis able to be cementlessly anchored in place which is at least approximately hemispherical and which is provided with a plurality of slots () extending in a meridional direction, thus forming intervening tongues (), on which are formed projections () that form a plurality of rows () extending from an equator () of the expandable socket (). The projections () are arranged on the tongues () in such a manner that a row () of projections () arranged in the center of the tongue () extends on a meridian () of the hemispherical socket () while at least one adjoining row () of projections () extends in a line that extends at all points in parallel to the meridian () of the row () of projections () arranged in the center and not through a pole () of the hemispherical expandable socket ().

Expandable socket

Growing community of inventors

Bern, Switzerland

Daniel Delfosse