摘要:
A radio-opaque marker for medical implants comprising between 10 and 90 weight percent of a biodegradable base component, between 10 and 90 weight percent of one or more radio-opaque elements selected from the consisting of I, Au, Ta, Y, Nb, Mo, Ru, Rh, Ba, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Hf, Ta, W, Re, Os, Ir and Bi as a marker component and 10 weight percent of residual components, the aforementioned components amounting to 100 weight percent.
摘要:
An implant system comprising a functional implant (5, 6) that fulfills a medical function, particularly a bone implant, which is formed at least in part of a metal material that can be degraded by the body (2) of the implant wearer, as well as a control device (7) for controlling the degradation behavior of the functional implant (5, 6). The control device (7) has a counter-electrode (10) to the functional implant (5, 6), and a voltage source (8) for making available a polarization voltage (ΔU) between functional implant (5, 6, 15) and counter-electrode (10), to control the degradation behavior of the functional implant (5, 6).
摘要:
A method for manufacturing a degradation-inhibiting first layer on the surface of an implant body, in particular an intraluminal endoprosthesis, whereby the body has at least one metallic material, which is at least largely biodegradable, comprising the following steps: preparing the body of the implant, and applying the first layer to at least a portion of the body surface, whereby the first layer contains magnesium stearate. An implant obtainable by such a method.
摘要:
A stent is provided having a base body circumscribing a cylindrical shape and radially expandable from a contracted starting position into a dilated support position, including a plurality of meander-shaped struts disposed in the circumferential direction and arrayed on one another in the axial direction, each strut being meander-shaped in its coarse structure and made of a flexible material, and at least one axial connector in the axial direction, connecting the meander-shaped struts of two axially adjacent meandering curves, wherein the at least one axial connector connects the inside radius of a zenith point of a first meandering curve with a second meandering curve, characterized in that the at least one axial connector at the inside radius of the zenith point of the first meandering curve has an at least double-arm structure.
摘要:
A biocorrodible implant includes a base formed from magnesium or a biocorrodible magnesium alloy, whose surface has a corrosion-inhibiting coating. A diffusion layer, which covers the base, differs in composition from the implant material. The diffusion layer contains at least one metallic element of the implant material and at least one corrosion-inhibiting element selected from the group of Al, Zn, Ca, Si, In, Mn, Sc and RE, where RE stands for rare earth metals. The implant optionally includes a metal layer of at least one of the corrosion-inhibiting elements selected from the group of Al, Zn, Ca, Si, In, Mn, Sc and RE covering the diffusion layer, and a passivating layer of metal oxides, metal nitrides or metal fluorides of at least one of the corrosion-inhibiting elements selected from the group of Al, Zn, Ca, Si, In, Mn, Sc and RE covering the diffusion layer or the metal layer.
摘要:
An implant for implantation in a human or animal body having a structure comprising a) an implant base body; b) a primer layer which is partially or completely applied to the surface of the implant; c) an active ingredient layer consisting of one, two, three or more active ingredients applied entirely or partially to the surface of the primer layer; and d) a diffusion-controlling layer which is applied partially or entirely to the active ingredient layer, and optionally to the primer layer, wherein diffusion of the active ingredients of the active ingredient layer is controlled. Also disclosed is a manufacturing method for an implant.
摘要:
A marker alloy foreign implant made of a biodegradable metallic material and having the composition MgxYbyMz wherein x is equal to 10-60 atomic percent; y is equal to 40-90 atomic percent; z is equal to 0-10 atomic percent; M is one or more element selected from the group consisting of Ag, Zn, Au, Ga, Pd, Pt, Al, Sn, Ca, Nd, Ba, Si, and Ge; and wherein x, y, and z, together, and including contaminants caused by production, result in 100 atomic percent.
摘要翻译:由可生物降解的金属材料制成并具有Mg x Y y M zz的组成的标记合金外来植入物,其中x等于10-60原子%; y等于40-90原子%; z等于0-10原子%; M是选自Ag,Zn,Au,Ga,Pd,Pt,Al,Sn,Ca,Nd,Ba,Si和Ge中的一种或多种元素; 并且其中x,y和z一起并包括由生产引起的污染物,导致100原子百分比。
摘要:
An endoprosthesis, particularly an intraluminal endoprosthesis, having a basic structure that is preferably configured in the shape of a hollow cylinder, preferably configured as a basic lattice. In the expanded state, an inner volume enclosed by the basic structure can be changed by means of the elasticity of the basic structure, where the basic structure can assume a normal state and a state of significant compression, with regard to its compression behavior, for further improvement of the healing progression when using an endoprosthesis according to the invention, where in the state of significant compression, the elasticity of the basic structure is significantly reduced as compared with the elasticity in the normal state. The state of significant compression is characterized by the fact that an inside diameter threshold value of the basic structure is not reached, or that a compression pressure threshold value is exceeded. In this connection, the inside diameter threshold value preferably amounts to about 75% of a nominal inside diameter, or the compression pressure threshold value preferably amounts to about 0.2 bar.
摘要:
A catheter system, comprising a catheter having a distal end and a proximal end; a functional section situated close to the distal end of the catheter; an inner shaft having a guidewire lumen; an outer tubing, such that the outer tubing completely or partially surrounds the functional section; a guidewire outlet having a distal portion and a proximal portion, such that the guidewire outlet passes through the inner shaft and the outer tubing; a guidewire, such that the guidewire is situated on the distal end of the catheter inside the guidewire lumen and is guided out of the catheter through the guidewire outlet, such that the guidewire outlet is attached close to the distal end of the catheter and proximally of the functional section; a cutting device for severing the outer tubing in retraction of same is attached to the distal portion of the guidewire outlet.
摘要:
An endoprosthesis, in particular an intraluminal endoprosthesis, including a tubular base body and at least one function element, the at least one function element also being tubular and being arranged on the base body in such a way that the at least one function element surrounds the base body at least partially and in at least partial areas, so that it is aligned concentrically with the base body.