Medos International Sarl

Silony Medical International Ag

Christoph Mehren

Joern Richter

Daniel Thommen

Eric Buehlmann

Michael White

Richard Assaker

William Taylor

Richard G Fessler

Michael Y Wang

Seang Beng Tan

Richard Kocharian

Piet Hinoul

Frank Heuer

Lorin M Benneker

Axel Hempfing

Michael Wang

Tan Seang Beng

An access device for accessing an intervertebral disc having an outer shield comprising an access shield with a larger diameter (˜16-30 mm) that reaches from the skin down to the facet line, with an inner shield having a second smaller diameter (˜5-12 mm) extending past the access shield and reaches down to the disc level. This combines the benefits of the direct visual microsurgical/mini open approaches and the percutaneous, 'ultra-MIS' techniques.

Multi-shield spinal access system

An access device for accessing an intervertebral disc having an outer shield comprising an access shield with a larger diameter (&#x2dc;16-30 mm) that reaches from the skin down to the facet line, with an inner shield having a second smaller diameter (&#x2dc;5-12 mm) extending past the access shield and reaches down to the disc level. This combines the benefits of the direct visual microsurgical/mini open approaches and the percutaneous, 'ultra-MIS' techniques.

The invention relates to a polyaxial screw including a screw anchor and a fork head which has two arms, is U-shaped in a lateral view and has a receiving opening for a correction element, and including a pressure piece which can be arranged in the fork head between the head of the screw anchor and the correction element, rests on the head of the screw anchor and can be loaded by the correction element.

Polyaxial screw

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Munich, Germany

Christoph Mehren