Aap Implantate Ag

Merck Patent Gmbh

Other

Implantate Ag

Biomet, Merck Deutschland Gmbh

Hans-Joachim Fischer

Curt Kranz

Uwe Ahrens

Majid Bakhshi

Gerd Steur

Gunter Lob

Thomas Batsch

Thomas Paulin

Bruke Seyoum Alemu

Marco Wolfstadter

Norbert Hort

Frank Witte

Gerd Ste&uuml;r

G&uuml;nter Lob

Wolfgang Voith

Bernd Frohlich

Thomas Bartsch

Marco WOLFSTÄDTER

Bernd FRÖHLICH

Jörn Kunz

Heinz Helge Schauwecker

Jens-Peter Stahl

A method for manufacturing a bioresorbable implant, wherein a magnesium alloy is formed into an implant. A melt is pressed into a die and gases in the die induce turbulence in the inflowing melt, thereby enclosing gas, so that the porous implant is formed with a porosity, which increases from outside inwardly. The surface of the implant is substantially free from open pores.

Implant made of a magnesium alloy and method for the production thereof

The invention proposes a bone plate comprising a bottom side that is to rest against the bone and an upper side opposite to the bone as well as a plurality of holes located along the longitudinal axis of the plate, through which bone screws can be inserted to be anchored to a bone. At least one of these holes is a continuous oblong hole comprising a longitudinal axis running in the direction of the longitudinal axis of the plate. A retaining structure, is provided in a partial area of the lateral side of the oblong hole for engaging the threads of said bone screw to archive an angle-stable fixation of said bone screw in said oblong hole.

Bone plate

A bone plate and to a fixation system comprising two types of bone screws. The bone plate has two intersecting stepped round holes which are different in size and in the upper regions of which a circumferential rib extends. The upper region of the smaller round hole is designed to slidably guide a bone screw having a partially spherical heads and a screw having a thread or conical head. The lower region of the larger round hole is used to support a conical head.

Bone plate and fixation system comprising a bone plate

A bone plate comprising a bottom side that is to rest against the bone, an upper side, and a plurality of holes along the longitudinal axis of the plate through which bone screws can be inserted to be anchored to a bone. At least one hole is a continuous oblong hole comprising a longitudinal axis running in the direction of the longitudinal axis of the plate. Thread flights are provided in a partial area of the lateral side of the oblong hole that when in a direction transversal to the plane of the upper side, are arranged only over a part of the depth of the oblong hole. In the direction transversal to the plane of the upper side, a support structure with smooth walls for the positive fit with a correspondingly configured negative structure at a screw head or screw neck of a bone screw is provided.

A modular artificial hip joint includes a head part and at least one shaft part. The shaft part, which can be driven into the bone and forms the distal region, is connected to the distal end of the head part by insertion, preferably by means of an insert cone. A first screw or tie rod, guided through an axial bore in the head part, can be screwed into the threaded bore in the shaft part. In order to guide a second screw for separating the conical insert connection between the individual components of the artificial joint, the bore in the head part is threaded and has a diameter which is greater than the diameter of the threaded bore in the shank part.

Modular artificial hip joint

Modular joint prosthesis

Joint prothesis

Growing community of inventors

Berlin, Germany

Hans-Joachim Fischer