Sulzer Orthopedics Inc.

Sulzer Orthopaedie Ag

Sulzer Orthopadie Ag

Suler Orthopedics Ltd.

Cosimo Donno

Armin Studer

Simon Casutt

Carlo Ventre

Markus Frohlich

Onur Adali

Daniel Amb&uuml;hl

Andr&eacute; Lobsiger

Daniel Hug

Raffael Berani

With the invention the connection of a bone screw ( ) to a bone plate ( ) is shown. The head ( ) of the bone screw ( ) lies with a ring-shaped outer surface ( ) in contact on a counter-surface ( ) and can be fixed with a securing screw ( ) which can be screwed in in the direction towards the counter-surface ( ). In this the height ( ) of the bone plate ( ) is chosen such that it is less than or equal to the shaft diameter ( ) of the bone screw ( ), whereas the screw head ( ) dips into a cut-out ( ) of the securing screw ( ) and the upper side of the securing screw ( ) terminates with the upper side of the bone plate ( ).

Connection of a bone screw to a bone plate

A holding apparatus for the vertebra of a spinal column. It furthermore has a mount for a bar which is provided at the side of the holding apparatus which faces away from a clamping screw. The clamping screw of the holding apparatus produces a rigid connection of the holding apparatus to the bar which is located in the mount. The apparatus retains the bar in the mount and can be brought into connection with the holding apparatus so as to temporarily retain in the mount a bar which is introduced into the mount until the holding apparatus is fixed to the bar by way of a rigid connection.

Holding apparatus for the spinal column

With the invention, tubular support bodies for bridging two adjacent vertebrae are shown. Two cages (,) which are placed one within the other are provided with cut-outs, and each of them has a support flange (,) at the outer end face (,). A first cage (,) has at least three radially projecting protrusions (,) at its jacket (,) which can be introduced into three axially extending lead-in channels (,) or a multiple thereof in the jacket (,) of the other cage (,) in order to be able to reach latch-in positions (,) of different depths.

Tubular support body for bridging two vertebrae

With the invention a pivotal securing system between a bone screw (1) with a spherical head part (2) and a reception part (3) is shown. The reception part has a passage bore (4) with a shoulder at its end which encloses the head part (2) at its lower side and which forms an abutment when the head part (2) is pressed on by the clamping screw (7) in a settable pivotal position (8). The head part (2) is executed as a separate part (9) which can be screwed together with the bone screw (1) in order to be able to place on the reception part (3) and to connect it to the latter after the implantation of the bone screw (1).

Pivotal securing system at a bone screw

Growing community of inventors

Winterthur, Switzerland

Cosimo Donno