Abstract:
The invention relates to intervertebral disk implants which imitate the natural degrees of freedom of movement by allowing translational and/or rotational movements of the disk located between the vertebrae relative to the bottom plate independently of the possible movements of the cover plate relative to said disk located between the vertebrae. Said movements can be performed by mounting the disk located between the vertebrae on the bottom plate by means of fastening means disposed inside the implant in such a way that translational and/or rotational movements are made possible. Furthermore, the contact surface between the cover plate and the disk located between the vertebrae is semi-cylindrical such that the contact surface is maximized.
Abstract:
The invention relates to a method for precipitating mono or multiple layers of organophosphosphoric acids of general formula (I(A)) Y-B-OPO3 H2 (IA) or organophosphonic acids of general formula (I(B)) Y-B-PO3 H2 (IB) and the salts thereof, wherein B is an alkyl, alkenyl, alkinyl, aryl, aralkyl, hetaryl or hetaryl alkyl radical and Y is hydrogen or a functional group from the hydroxy, carboxy, amino, optionally low-alkyl- substituted mono or dialkylamino series, thiol, or a negative acid group from the ester, phosphate, phosphonate, sulphate, sulphonate, maleimide, succinimydyl, epoxy, acrylate series. A biological, biochemical or synthetic indicator element can be coupled to B or Y as addition or substitution reaction, whereby compounds can also be added imparting on the substrate surface a resistance against protein absorption and/or cell adhesion and in the B chain can be, optionally, composed of one or more ethylene oxide groups rather than one or more CH2 groups. According to the invention, said precipitation occurs on the surfaces of the substrates of pure or mixed oxides, nitrides or carbides of metals and semi-conductors. The invention is characterised in that the water-soluble salts composed of formula (IA) or (IB) are used to treat said surfaces, especially the surfaces of sensor platforms, implants and medical accessory devices.
Abstract translation:本发明涉及一种用于单或通式的有机膦酸多层的分离的方法I(A):YB-OPO 3 H 2(IA)或通式I(B)YB-PO 3 H 2(IB)的有机膦酸和其盐,其中 B是烷基,烯基,炔基,芳基,芳烷基,杂芳基或杂芳基烷基残基,Y是氢或选自羟基,羧基,氨基,任选地被低级烷基取代的官能团,单或二烷基氨基,巯基,或 从酯,磷酸酯,膦酸酯,硫酸酯,磺酸酯,马来酰亚胺,琥珀酰亚胺,环氧,丙烯酸酯的装置,其特征在于,通过加成或取代反应的生物,生化或合成的识别元件可以停靠到B或Y,由此化合物附着负酸基 可赋予基材表面至蛋白吸附和/或细胞粘附和在乙在链中任选地电阻,而不是一个 或多个-CH 2基团,一个或多个环氧乙烷基团可以包含上的金属和半导体的纯的或混合的氧化物,氮化物或碳化物,其特征在于对这些表面的处理,特别是作为传感器平台,植入物和医疗附件装置表面的衬底表面, 可以使用的式(IA)或(IB)的化合物的水溶性盐。
Abstract:
Die vorliegende Erfindung betrifft Bandscheibenimplantate, welche die natürlichen Bewegungsfreiheitsgrade imitieren, indem Translations- und/oder Rotationsbewegungen von Wirbelzwischenscheibe relativ zur Grundplatte unabhängig von den möglichen Bewegungen der Deckplatte relativ zur Wirbelzwischenscheibe ermöglicht werden. Diese Bewegungen werden realisiert, indem die Wirbelzwischenscheibe mittels Befestigungsmittel, welche sich im Innern des Implantats befinden, so auf der Grundplatte gelagert ist, dass Translations- und/oder Rotationsbewegungen möglich sind. Ferner ist die Auflagefläche zwischen Deckplatte und Wirbelzwischenscheibe halbzylinderförmig ausgestaltet, so dass die Kontaktfläche maximiert wird.
Abstract:
An orthopedic implant (40) having diffusion-hardened surfaces employed at inner and outer load-bearing surfaces. Preferably, the orthopedic implant is a bipolar hip prosthetic device and system where a coating of oxidized zirconium is formed at the articulating, load-bearing surface of the acetabular component (41) and at the articulating, load-bearing surface of the femoral head (43). The acetabular component has a polymeric cup (42), made from a bio-compatible material, such as UHMWPE.
Abstract:
The invention relates to a joint prosthesis (1) comprising two metal parts which are movable with respect to one another. The surfaces of the metal parts are covered with an abrasion layer (10, 10') of ceramic material which has a hardness which is greater than that of the carbides (7, 7') present in the metal. The carbides (7, 7') are worn away by the abrasion layer (10, 10'). As a result, the overall wear behaviour of the two metal parts of the prosthesis (1) is improved considerably, and the metal surface of the prosthesis parts is not affected by the carbides (7, 7') during movement. The metal components are preferably spaced apart from one another at a distance (d) of at most 0.2 millimeter. This close fit improves the wear action. Owing to the relatively thin wear layer (10, 10'), the particles formed during the wearing process are small enough to be discharged into the space between the joint parts by synovial fluid.
Abstract:
Substrates for joints for orthopaedic implants are described, wherein at least one of the sliding surfaces of non-ferrous metal alloys, in particular of cobalt, chromium, molybdenum alloys, has a coating consisting of niobium nitride nanolayers alternating with chromium nitride nanolayers, the lot being protected by a chromium nitride microlayer.
Abstract:
The present invention provides an implant (1) comprising a hollow body (2) having an opening (8), the body (2) having an inner (3) and an outer (4) surface, wherein the inner surface (3) of the body (2) has a surface structure (9) that enables bone in-growth. The present invention also provides a method of implantation, comprising: preparing a resected bone with an optional cavity in the bone canal; providing such an implant (1); and implanting the implant.
Abstract:
The invention relates to a method for precipitating mono or multiple layers of organophosphosphoric acids of general formula (I(A)) Y-B-OPO3 H2 (IA) or organophosphonic acids of general formula (I(B)) Y-B-PO3 H2 (IB) and the salts thereof, wherein B is an alkyl, alkenyl, alkinyl, aryl, aralkyl, hetaryl or hetaryl alkyl radical and Y is hydrogen or a functional group from the hydroxy, carboxy, amino, optionally low-alkyl- substituted mono or dialkylamino series, thiol, or a negative acid group from the ester, phosphate, phosphonate, sulphate, sulphonate, maleimide, succinimydyl, epoxy, acrylate series. A biological, biochemical or synthetic indicator element can be coupled to B or Y as addition or substitution reaction, whereby compounds can also be added imparting on the substrate surface a resistance against protein absorption and/or cell adhesion and in the B chain can be, optionally, composed of one or more ethylene oxide groups rather than one or more CH2 groups. According to the invention, said precipitation occurs on the surfaces of the substrates of pure or mixed oxides, nitrides or carbides of metals and semi-conductors. The invention is characterised in that the water-soluble salts composed of formula (IA) or (IB) are used to treat said surfaces, especially the surfaces of sensor platforms, implants and medical accessory devices. The invention also relates to the use thereof as part of coated sensor platforms, implants and medical accessory devices in addition to novel organophosphosphoric acids and organophosphonic acids themselves. The optionally substituted compounds of general formula (IA) and (IB), wherein the groups B and Y have the above mentioned designations i.e. optionally substituted alkyl, alkenyl, alkinyl, aryl, aralkyl, hetaryl or hetaryl, are equally called organophosphoric acids or phosphonic acids.
Abstract translation:本发明涉及一种用于通式有机膦酸的单 - 或多层的分离的方法(IA):YB-OPO 3 H 2,或通式(IB)的有机膦酸:YB-PO 3 H 2和它的盐,其中B为烷基, 烯基,炔基,芳基,芳烷基,杂芳基或杂芳基烷基残基,Y是从系列氢或选自羟基,羧基,氨基,任选地被低级烷基取代的官能团,单或二烷基氨基,巯基,或负的酸基团 酯,是磷酸酯,膦酸酯,硫酸酯,磺酸酯,马来酰亚胺,琥珀酰亚胺,环氧,丙烯酸酯,其中,通过加成或取代反应的生物,生化或合成的识别元件可以停靠到B或Y,其中,化合物也可附着于衬底表面 在链中赋予对蛋白吸附和/或细胞粘附性和在B的任选取代的一个或米 ehrerer -CH 2个基团,一个或多个环氧乙烷基团可以包含上的金属和半导体的纯的或混合的氧化物,氮化物或碳化物,其特征在于在基板表面,其水溶性为这些表面的处理,特别是作为传感器平台,植入物和医疗附件装置的表面, 可以使用的式(IA)或(IB)的化合物的盐。 此外,本发明,其作为涂布传感器平台,植入物和医疗附件设备以及新和有机膦-膦酸部分的使用影响那里。 式的任选取代的化合物(IA)和(IB)其中基团B和Y有上述含义,即 一起为任选取代的烷基,烯基,炔基,芳基,芳烷基,杂芳基或杂芳基,要采取以下一起-也是标号有机膦酸或膦酸下。