摘要:
The system according to the present disclosure includes a metal stent (3) as a medical implant for treating lesions in blood vessels and a packaging (1) having an inside volume, in which the stent (3) is arranged in a protected manner. The stent (3) has a plurality of webs (33), which produce a tubular shape with each other, and a proximal end (31) and a distal end (32), between which a stent lumen (34) extends. The stent surface (35) has a hydrophilic property. The molecular chemical impurities originating in the atmosphere, primarily hydrocarbon compounds, are significantly reduced on the surface by a treatment, whereby the contact angle as a measure of the hydrophilicity of a water drop present on the surface (35) is reduced in proportion to the contact angle prior to said treatment. The stent (3) is stored in an inert manner in the packaging (1).
摘要:
A device and a method for providing a stent for implantation into a body lumen are provided, wherein the stent (3) has a proximal end (31) and a distal end (32), between which a stent lumen having a compressible diameter d extends. The device comprises a crimping apparatus (4), having elements (40) which are disposed about an axis and can be moved at least partially relative to each other radially to the axis, and an activator (42) for actuating the crimping apparatus (4). The elements (40) of the crimping apparatus comprise the stent (3) and can be moved radially by means of the activator (42) from a widened position, in which the stent (3) is not crimped, into a closed position, in which the diameter d of the stent (3) is compressed. According to the invention, a storage compartment comprising an inert medium or an inert filling is provided, which forms a jacket in which the stent (3) is stored in an inert manner at least the majority of the time, while the elements (40) enclose the stent (3) and are moved from the widened position into the closed position. The inert jacket can be interrupted during compression of the stent.
摘要:
Secondary part or securing an impression cap (72) releasably on a tooth implant (10). The secondary part (40) is secured on the latter by means of a screw connection. The secondary part (40) has elastically deformable spring fingers (44) that cooperate with a wall (76) of the impression cap (72). The wall (76) is dimensionally stable. With a good fit of the impression cap, the device can thus have a slender configuration, such that it is also suitable in particular for use in the front area of the lower jaw.
摘要:
The present invention involves porous polymer membranes, suitable for use in medical implants, having controlled pore sizes, pore densities and mechanical properties. Methods of manufacturing such porous membranes are described in which a continuous fiber of polymer is extruded through a reciprocating extrusion head and deposited onto a substrate in a predetermined pattern. When cured, the polymeric material forms a stable, porous membrane suitable for a variety of applications, including reducing emboli release during and after stent delivery, and providing a source for release of bioactive substances to a vessel or organ and surrounding tissue.