Catheter and hollow tube being incorporated therein

• Main Authors: KATO, TOMIHISA, OZAWA, SHINJI, KATO, OSAMU
• Format: Patent
• Language: English; French; German
• Published: 17.08.2005
• Edition: 7
• 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; DIAGNOSIS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PROSTHESES; SURGERY; TREATMENT OR PROTECTION OF EYES OR EARS

A catheter device formed by flexible hollow tube body (1, 1A, 1B, 1C) has a plurality of austenitic stainless steel wires (2) cylindrically stranded. An inner surface of the flexible tube forms a convex-concave structure represented by the austenitic stainless steel wires (2) semi-circular in cross section. A leading distal end of the flexible tube is formed into a knife-edge circular configuration to provide a knife-edge circular front (3). The hollow tube body (1, 1A, 1B, 1C) is used for catheters (K, K1, K2 and K3) to impart them with a perforative ability so as to improve its quality and performance.