Coated items and manufacturing thereof

Abstract

A method for manufacturing a coated item 10 in a chemical deposition reactor and a coated item produced by said method are provided. The method comprises deposition of a first coating on a first surface of the item 10 , and/or deposition of a second coating on a second surface of said item.

1 . A coated item configured as an interlaced structure comprising a coating formed by a method comprising:
 obtaining a chemical deposition reactor with a reaction space formed by a reaction chamber and configured to receive, at least in part, a substrate holder made of a fluid-permeable material, onto which an interlaced substrate is mounted such, that a first surface of the substrate faces the reaction space, and a second surface of the substrate is placed against the substrate holder, and   in a number of deposition cycles, forming a first coating on the first surface and/or forming a second coating on the second surface,   wherein, each deposition cycle comprises delivering, with a flow of fluid, a precursor chemical into the reaction space such, that delivery of at least one precursor chemical into the reaction space occurs via said fluid-permeable material.   
     
     
         2 . The coated item of  claim 1 , comprising the coating formed by the method, wherein the substrate holder has an essentially hollow interior, into which said at least one precursor chemical is received. 
     
     
         3 . The coated item of  claim 1 , comprising the coating formed by the method, wherein the deposition cycle comprises delivering at least two predetermined precursor chemicals into the reaction space, whereby a deposition layer is produced across the first surface of the substrate and/or across the second surface of said substrate. 
     
     
         4 . The coated item of  claim 1 , comprising the coating formed by the method, in which a first predetermined precursor chemical is delivered into the reaction space via the reaction chamber and a second predetermined precursor chemical, is delivered into the reaction space via the fluid-permeable substrate holder. 
     
     
         5 . The coated item of  claim 1 , comprising the coating formed by the method, in which the precursor chemicals are delivered into the reaction space in sequential, temporally separated pulses, optionally alternated by purging the reaction space with inert fluid. 
     
     
         6 . The coated item of  claim 1 , comprising the coating formed by the method, in which delivery of any one of the precursor chemicals into the reaction space is accompanied by generating a counter flow of inert fluid in a direction essentially opposite to the direction of delivery of precursor chemicals into the reaction space. 
     
     
         7 . The coated item of  claim 1 , comprising the coating formed by the method, wherein any one of the first coating and the second coating are formed by the at least one deposition layer deposited across the first surface of the substrate and/or across the second surface of said substrate. 
     
     
         8 . The coated item of  claim 1 , comprising the coating formed by the method, wherein the deposition layers forming the first coating differ from the deposition layers forming the second coating by virtue of at least composition thereof. 
     
     
         9 . The coated item of  claim 1 , comprising the coating formed by the method, wherein selective formation of the coating on the first surface and/or on the second surface is regulated by adjusting pressure of fluid flowing into the reaction space via the reaction chamber and/or via the fluid-permeable substrate holder. 
     
     
         10 . The coated item of  claim 1 , comprising the coating formed by the method, wherein the substrate holder is made of a fluid-permeable material selected from the group consisting of porous metal, porous ceramics and porous polymer. 
     
     
         11 . The coated item of  claim 1 , comprising the coating formed by the method, wherein the substrate holder is an essentially tubular structure. 
     
     
         12 . The coated item of  claim 1 , configured as an essentially tubular interlaced structure formed by a mesh or a web. 
     
     
         13 . The coated item of  claim 1 , configured as an implantable medical device, such as a stent or a catheter, or configured to form a part of such device. 
     
     
         14 . The coated item of  claim 1 , comprising the coating deposited onto interlaced substrate with Atomic Layer Deposition (ALD). 
     
     
         15 . A coated implantable medical device configured as an interlaced structure, comprising a first coating on a first surface and/or a second coating on a second surface, wherein the first coating and the second coating differ from one another by virtue of at least composition thereof. 
     
     
         16 . The coated implantable medical device of  claim 15 , wherein the first surface is an exterior surface of said device, and wherein the second surface is an interior surface, respectively. 
     
     
         17 . The coated implantable medical device of  claim 15 , configured as a stent or a catheter.