Central Development, Germany
Central Development, Germany

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Patent
CeramTec GmbH | Date: 2015-05-27

The invention relates to a control cartridge for single-lever mixer taps, comprising a housing in which a ceramic base disk and a rotatable and displaceable ceramic control disk resting on the base disk are situated. An inlet for the cold water and hot water, respectively, and an outlet for the mixed water are situated in the base disk, and the mixed water is diverted in the control disk and leaves the control cartridge via the outlet in the base disk. In order for automatic scalding protection to be integrated into the control cartridge, i.e., for the control cartridge to automatically close in the event of a scalding temperature of the mixed water, according to the invention at least one shape memory alloy (SMA) element is situated on the control disk, and takes on the temperature of the mixed water during operation of the control cartridge, and upon reaching a scalding temperature of the mixed water, expands and hereby automatically moves the control disk into the closed position in which no water arrives at the outlet, and the SMA element is supported on the one hand on the control disk and on the other hand on the housing.


The invention relates to control cartridge (1) for single-lever mixer batteries, comprising a housing with a cylindrical housing wall (2) and with a base (3) comprising a bore for an inlet (3a) for cold water and a bore for an inlet (3b) for hot water. Three ceramic disks (5, 6, 7) which lie one above the other are arranged on the base (3), namely a lower base disk (5) with a bore for the inlet (5b) for hot water and a bore for the inlet (5a) for cold water, a ceramic control disk (6) which rests on the base disk (5) in a rotatable and movable manner and which comprises a control edge (8) on the circumferential surface, and an upper storage disk (7) which is sealed from the housing or the housing wall (2). In order to allow the outlet of mixed water to occur either laterally or vertically while maintaining the same installation space or the same installation height and installation diameter, the base (3) and the base disk (5) each have a mixed water outlet (9) together with the two inlets for cold and hot water (3a, 3b, 5a, 5b). The inlets for hot water (3b, 5b) and for cold water (3a, 5a) and the mixed water outlet (9) are arranged in the base (3) and the base disk (5) so as to lie one over the other. The base (3) is sealed from the housing wall (2), and depending on the requirements, the housing wall (2) has an opening (10) for a lateral mixed water outlet or no opening in the housing wall (2) for a vertical mixed water outlet.


The invention relates to a knee joint prosthesis comprising a femoral component (1) and a tibial component (2), each having a front face constituting the joint and a rear face (4) facing the bone, and a polyethylene (PE) liner (3). In order to allow the knee joint prosthesis to be implanted without metal and without cement, the femoral component (1) and the tibial component (2) consist of a full ceramic material and both components (1, 2) have integrated porous osseointegrative rear faces (4) facing the bone.


Patent
CeramTec GmbH | Date: 2017-05-17

The invention relates to an acetabulum (1) for a hip prosthesis, comprising an inner cavity (2) and a rear outer surface (3) facing the bone. In order to be able to implant the acetabulum (1) without using cement, at least some areas of the outer surface (3) are porous and osseointegrative, and the acetabulum (1) is made exclusively of a ceramic material.


Patent
CeramTec GmbH | Date: 2017-05-31

The invention relates to components for fusing vertebral bodies and to methods for the production and use thereof.


The invention relates to a rotary bend testing device for plate-like substrates (1) made of ceramic or glass-ceramic materials, wherein the substrates (1) to be tested are subjected to bending. In order that uniform checking both of the top side and of the underside of the substrate (1) takes place in the rotary bend testing device, without the substrate (1) having to be turned over, it is proposed that a first roller arrangement (3) consisting of at least three support rollers (3a, 3b, 3c) arranged on shafts is arranged on a mounting platform (8), all the support rollers (3a, 3b, 3c) running on the same first plane on a first circular track, that a second roller arrangement (2) consisting of at least three pressure rollers (2a, 2b, 2c) arranged on shafts is arranged above or beneath the first roller arrangement (3), wherein all the pressure rollers (2a, 2b, 2c) run on the same second plane on a second circular track, that the centre (10) of the first and the second track is arranged on a centre straight line perpendicular to the two planes and the support rollers (3a, 3b, 3c) are arranged in an offset manner with respect to the pressure rollers (2a, 2b, 2c), i.e. one roller of one roller arrangement is arranged between in each case two rollers of the other roller arrangement, all the rollers from one of the two roller arrangements are driven at the same speed via a drive apparatus and the second roller arrangement (2) is displaceable on the centre straight line.


Grant
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: FoF-10-2015 | Award Amount: 5.12M | Year: 2015

The cerAMfacturing project will develop a completely new approach for ceramic multi material additive manufacturing which will allow series production of customised and multifunctional components for manifold applications for obtaining property combinations, like electrical conductive/electrical insulating, dense/porous or two-colored components. In five case studies demonstrators for personalized medical products micro surgical tools, implants, and remedies such as consumer products will be manufactured starting with the patient specific physical dimensions and ending with components validated under practically relevant conditions. For achieving these goals manifold tasks will be solved starting with method and device development. Especially suspension based additive manufacturing methods will be developed and qualified in cerAMfacturing, because this route promises a much better component performance in comparison to powder based methods. Multi material applications play a dominant role in the project. Beside ceramic/ceramic also ceramic/metal material combinations will be developed. For that purpose either additive manufacturing methods will be qualified or AM methods will be combined with conventional shaping routes like tape casting or ceramic injection moulding. The last mentioned combination of technologies will allow the individualisation of large series production components. Appropriate control methodologies to guarantee a high quality level of the custom made products will be implemented. The cerAMfacturing project will provide the technical equipment for combining AM steps with conventional ceramic shaping routes.


Patent
CeramTec GmbH | Date: 2015-11-23

A cutting tool for radial and axial recessing and for lateral motion for so-called grooving of primarily metallic materials, having a clamping holder and a cutting element base, fastened to the clamping holder, on which a cutting element rests, the cutting element being pressed onto the cutting element base by a clamping finger of a clamping claw, and the cutting element being guided on the cutting element base with a prism.


A package for receiving an adapter sleeve for a hip endoprosthesis, the hip endoprosthesis comprising a ball head which has to be pushed onto the adapter sleeve with a defined pushing-on force. For simplification and secure fastening of the ball head on the adapter sleeve, it is proposed according to the invention that a device for the mounting of the ball head on the adapter sleeve is integrated in the package and this device comprises indicating elements which indicate that the defined pushing-on force has been reached when the ball head is pressed onto the adapter sleeve. Preferably the package has indicating elements.


Patent
CeramTec GmbH | Date: 2016-03-17

The invention relates to a hip joint prosthesis comprising a ceramic inner sliding cup that, on its outside, is surrounded by a plastic covering, for inserting into an outer metal cup or for directly implanting with the aid of bone cement. A ball head, which is mounted on a shaft, articulates inside the inner sliding cup, and said shaft can be anchored inside the femur. In order to increase the strength with regard to tilting and turning, the exterior of the sliding cut is provided with a structuring.

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