Permanent medical tube for bile duct, pancreatic fluids etc

The tube comprises a part (1) which has thermoplastic resin at its interior with a controlled surface roughness controlled. The surface roughness can be adjusted and is expressed by a maximum profiled height (Ry), this height being 0,5 mu m or less. This prevents the adhesion of fluid bacteria and o...

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Bibliographic Details
Main Authors MIYANO, YASUO, HACHIOJI, TOKIO/TOKYO, JP, ONUKI, YOSHIO, HACHIOJI, TOKIO/TOKYO, JP, SUZUKI, YASUYUKI, HACHIOJI, TOKIO/TOKYO, JP
Format Patent
LanguageEnglish
German
Published 02.01.1998
Edition6
Subjects
BANDAGES, DRESSINGS OR ABSORBENT PADS
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY
DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS
FILTERS IMPLANTABLE INTO BLOOD VESSELS
FIRST-AID KITS
FOMENTATION
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES
PROSTHESES
TREATMENT OR PROTECTION OF EYES OR EARS
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Summary:The tube comprises a part (1) which has thermoplastic resin at its interior with a controlled surface roughness controlled. The surface roughness can be adjusted and is expressed by a maximum profiled height (Ry), this height being 0,5 mu m or less. This prevents the adhesion of fluid bacteria and other materials to the tube inner surface. The maximum profile height (Ry) is a value obtained by intersecting one reference length only in a direction from its centre line from a surface roughness-curve, and by measuring the space between a top line of the cut area and a bottom line in a direction where the roughness-curved increases in length.
Bibliography:Application Number: DE1997125185