MEDICAL TUBULAR BODY

PURPOSE:To obtain the structure having a large compression force resistance, pulling force resistance, and a large torque transmissivity by constituting the title medical tubular body from a flat plate-shaped close winding coil made of metal, flat square- shaped braided article which is made of metal and externally fitted, and a resin-covered layer covering the flat square braided article. CONSTITUTION:A medical tubular body is used for a catheter, endoscope, or catheter guide sheath for the diagnosis, inspection, therapy, etc., for the vessel of a living body, digestive tract, air-tube, urinary tract, ovalduct, etc., and consists of a flat plate- shaped close winding coil 1 made of metal, flat square braided part 2 which is externally fitted and made of metal, and a resin-covered layer 3 covering the braided part 2. Accordingly, the thickness of the flat square braided part 2 can be made sufficiently thin, and the total thickness dimension A as tubular body T can be set to 0.085-0.20mm. In particular, the contact surface frictional force of the mutual surface contact between the flat square braided part 2 and the flat plate shaped close winding coil 1 becomes the proper magnitude, and the sufficient toughness-torque transmissivity can be obtained. Since the outside diameter D can be set to 2.0mm or less, the catheter and the endoscope having each fine diameter and high torque transmissivity can be manufactured.