Abstract

An osteosynthesis system includes a bone plate and a segment. The bone plate includes a plurality of passages for bone screws and at least one web. The segment includes at least one passage for a screw. The segment has a clip-like configuration and can be snapped onto the web of the bone plate. The segment also has an upper half and a lower half and is fastened on the web of the bone plate with a force-locked connection by moving the upper and lower halves toward each other. The upper and the lower halves are moved towards each other by introducing a screw into the at least one passage of the segment.

IPC Classes  ?

• A61B 17/56 - Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
• A61B 17/58 - Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or the like
• A61B 17/80 - Cortical plates
• A61F 2/30 - Joints
• A61B 17/17 - Guides for drills
• A61B 17/82 - Internal fixation devices for bone cerclage

Abstract

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.

IPC Classes  ?

• A61B 17/80 - Cortical plates
• A61B 17/17 - Guides for drills
• A61B 17/86 - Pins or screws

Abstract

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.

IPC Classes  ?

• A61B 17/80 - Cortical plates
• A61B 17/86 - Pins or screws
• A61B 17/00 - Surgical instruments, devices or methods, e.g. tourniquets

Abstract

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.

IPC Classes  ?

• A61B 17/80 - Cortical plates
• A61B 17/86 - Pins or screws
• A61B 17/00 - Surgical instruments, devices or methods, e.g. tourniquets

Abstract

The present invention relates generally to a bio-degradable implant based on magnesium having a reduced corrosion rate and to a method for the production of such an implant. It is a a method for treating a surface of a bio-degradable metallic implant comprising the following steps: providing a dispersed system comprising a colloid-dispersed apatite and adding an apatite powder to the dispersed system, subjecting an implant to the dispersed system such that a surface of the implant which is to be treated is immersed in the dispersed system wherein the implant comprises a magnesium based alloy, applying an AC voltage difference between the implant as a first electrode and a second electrode positioned in the dispersed system for generating a plasma electrolytic oxidation on the immersed surface of the implant so that the immersed surface is converted to an oxide film which is at least partially covered by apatites formed by the colloid-dispersed apatite and the apatite powder. The evolution of corrosion induced hydrogen gas evolution is decreased and osseointegration is improved.

IPC Classes  ?

• C25D 11/30 - Anodisation of magnesium or alloys based thereon
• A61L 31/02 - Inorganic materials
• A61L 31/08 - Materials for coatings
• A61L 31/14 - Materials characterised by their function or physical properties
• C25D 11/02 - Anodisation

Abstract

2 coating shows excellent properties in terms of antibacterial efficacy (even against multi-resistant strains), adhesion and biocompatibility. The life-time of an implant in a human body is increased. The antibacterial coating can be used in the field of traumatology, orthopaedic, osteosynthesis and/or endoprothesis, especially where high infection risk exists.

IPC Classes  ?

• B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
• A61F 2/02 - Prostheses implantable into the body
• C25D 11/00 - Electrolytic coating by surface reaction, i.e. forming conversion layers