Expandable multi-layer tubular structure and production method thereof

An expandable multi-layer tubular structure, is new. An expandable multi-layer tubular structure capable of radial expansion, has two or more layers (1, 2), at least one of which has surface recesses (3), while another has radial perforations (4), with both recesses and perforations set at 50 - 60 m...

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Bibliographische Detailangaben
Hauptverfasser:	IGOR I. PAPIROV, VITALI E. VERIN
Format:	Patent
Sprache:	eng
Schlagworte:	BANDAGES, DRESSINGS OR ABSORBENT PADS CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS DISINFECTION, STERILISATION, OR DEODORISATION OF AIR FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PROSTHESES TREATMENT OR PROTECTION OF EYES OR EARS
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Beschreibung
Zusammenfassung:	An expandable multi-layer tubular structure, is new. An expandable multi-layer tubular structure capable of radial expansion, has two or more layers (1, 2), at least one of which has surface recesses (3), while another has radial perforations (4), with both recesses and perforations set at 50 - 60 micron intervals. The surface recesses can be located on the inner or outer surface of the layer, and can be filled with a medication. The different layers can be made from Ta, 316L steel or Elgiloy (40%), from a Pt-Ir alloy or other biocompatible metal or alloy. After forming the surface recesses the different layers are sanded or plasma treated, hot laminated in a vacuum, formed into a tube, welded and cut to length.