DOUBLE-RASCHEL-KNITTED TUBE FOR ARTIFICIAL BLOOD VESSEL, AND PROCESS FOR PRODUCING THE SAME

PROBLEM TO BE SOLVED: To provide a process for producing a double-raschel-knitted tube for artificial blood vessels, attaining efficient knitting while minimizing the occurrence of thread breakage or fluffing, and the double-raschel-knitted tube for artificial blood vessels, produced by the process....

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Bibliographische Detailangaben
Hauptverfasser:	TSUBOTA MASAICHI, TAKAGI YOSHIHIDE, YAMAUCHI SHINSUKE
Format:	Patent
Sprache:	eng
Schlagworte:	BANDAGES, DRESSINGS OR ABSORBENT PADS BRAIDING 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 INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTIOND, RELATING TOTEXTILES KNITTING LACE-MAKING MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL NON-WOVEN FABRICS ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PROSTHESES TEXTILES TREATMENT OR PROTECTION OF EYES OR EARS TRIMMINGS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a process for producing a double-raschel-knitted tube for artificial blood vessels, attaining efficient knitting while minimizing the occurrence of thread breakage or fluffing, and the double-raschel-knitted tube for artificial blood vessels, produced by the process.SOLUTION: The process for producing the double-raschel-knitted tube W for artificial blood vessels includes refining raw silk 2 composed of N-number of silk threads 1 each comprising a pair of core parts 41 formed of fibroin 11, and a skin part 42 formed of sericin 12 around the core part 41; removing a part of sericin 12 while leaving a part of sericin 12 to separate the pair of core parts 41 to thereby form 2N-number of skin core structure fibroin 4, thereby obtaining sericin coated silk threads 5 each composed of 2N-number of skin core structure fibroin 4; then applying first twist to the sericin coated silk threads 5 to form first-twisted silk threads; combining a plurality of first-twisted silk threads to apply final twist to form twisted silk threads; and using the twisted silk threads T as knitting threads Y to form a tubular knitted material.