Zimmer Gmbh

Kopter Group Ag

Marenco Swisshelicopter Ag

Cosimo Donno

Adam D Henderson

Martin Stucki

Roger Scherrer

A ground manoeuvering device comprises a housing with a fastening device for the skid, a hydraulic apparatus as well as an outer wheel and an inner wheel on two aligned horizontal axles on the hydraulic apparatus, respectively one on the inside and one on the outside beside the skid. The hydraulic apparatus comprises an extendable piston and an engagement shaft with a lever attached in a swivellable manner. When the lever is rocked, the piston is extended from the hydraulic apparatus and thereby lifts the housing vertically upwards. The engagement shaft is aligned in the wheel running direction and the lever extends, in the operating state, in the wheel axle direction of the outer wheel. In addition, the lever comprises a tread section, in order to raise the fastened skid onto the two wheels using the hydraulic apparatus while standing conveniently beside the helicopter repeatedly stepping with the foot on the tread section.

Ground manoeuvering device with a hydraulic apparatus

A helicopter load hook has a release mechanism that can be mounted in a fixed position in a housing for controllable identification and release of a swivel movement of a hook. The release mechanism includes a magnetic switch and a drum that can rotate. The release mechanism also includes at least one latching piece, which can be swivelled about a latching piece axis of rotation and at least one force receiver, which can be swivelled about a swivel axis, together with a pin. The pin can be connected with a locking lug on the drum together with a hook follower on the hook, such that an indirect connection between the hook and the drum, or more particularly, the magnetic switch, can be achieved, and any direct contact between the hook and the magnetic switch is eliminated. In the closed position of the hook the pin makes any swivelling movement of the hook impossible.

Helicopter load hook

A prosthetic femoral component () for an orthopaedic prosthesis has a canted patellar groove adapted for optimal patella/component interaction, with the component configured to have a medial or lateral cant depending upon the method of implantation. The femoral component defines a distal 'component transverse plane,' which is a plane tangent to the distal-most points of the component condyles (). In a 'mechanical' implantation, the component transverse plane is substantially normal to the mechanical femoral axis of the femur after the component has been implanted. Where the femoral component is configured to be &#x201c;mechanically oriented&#x201d; in this manner, the component has a medially canted patellar groove. On the other hand, an &#x201c;anatomic&#x201d; implantation is one in which, after the component has been implanted, the component transverse plane is substantially parallel to an &#x201c;anatomic&#x201d; transverse plane. The anatomic transverse plane is perpendicular to the anatomic axis of the femur from a sagittal view, and is inclusive of a line connecting the distal-most points of the natural femoral condyles before resection. Where the femoral component is configured to be &#x201c;anatomically oriented&#x201d; in this way, the component has a non-canted or slightly laterally canted patellar groove.

Femoral prosthesis with lateralized patellar groove

A load hook substructure for attachment onto or into the cabin structure of a helicopter, having a housing in which a shaft with a hook attachment is mounted, such that a load hook can be connected with the shaft and thereby with the load hook substructure; this improves the flying characteristics of the helicopter in the case of flights with a load carried underneath. This is achieved in that the shaft passes through the interior of the housing in the longitudinal direction between a housing end wall and a housing wall, such that it can move linearly, and a return spring device is arranged between a damping plate arranged on the shaft and the housing end wall, and a damping device is arranged between the damping plate and the lower housing wall. The damping device has at least one flexibly compressible damping element, which develops a damping action in the event of a linear movement of the shaft.

Load hook substructure

A prosthetic femoral component () for an orthopedic prosthesis has a canted patellar groove adapted for optimal patella/component interaction, with the component configured to have a medial or lateral cant depending upon the method of implantation. The femoral component defines a distal 'component transverse plane,' which is a plane tangent to the distal-most points of the component condyles (). In a 'mechanical' implantation, the component transverse plane is substantially normal to the mechanical femoral axis of the femur after the component has been implanted. Where the femoral component is configured to be &#x201c;mechanically oriented&#x201d; in this manner, the component has a medially canted patellar groove. On the other hand, an &#x201c;anatomic&#x201d; implantation is one in which, after the component has been implanted, the component transverse plane is substantially parallel to an &#x201c;anatomic&#x201d; transverse plane. The anatomic transverse plane is perpendicular to the anatomic axis of the femur from a sagittal view, and is inclusive of a line connecting the distal-most points of the natural femoral condyles before resection. Where the femoral component is configured to be &#x201c;anatomically oriented&#x201d; in this way, the component has a non-canted or slightly laterally canted patellar groove.

Femoral prosthesis with medialized patellar groove

The invention relates to a base component for a tibial implant, comprising a lateral compartment (), a medial compartment () and an anterior connection portion () which connects the lateral compartment () and the medial compartment () to one another at anterior. A portion () open to posterior is provided between the lateral compartment () and the medial compartment (). The lateral component () and the medial component () each have a lower side and an upper side, with at least one of the lower sides being configured for the fastening of the base component to the tibia. A marginal web () is formed at at least one of the compartments (), starting from the upper side, said marginal web forming a receiving shell for a meniscus component () of the tibial implant together with the upper side of the compartment. The height of the marginal web () in a posterior region is reduced with respect to other regions of the marginal web () at at least one of the two compartments (). The invention furthermore relates to a tibial implant and to a knee prosthesis.

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Pfungen, Switzerland

Cosimo Donno