CATHETER AND METHOD FOR MANUFACTURING CATHETER

• Main Authors: YAMAGUCHI KENJIRO, HAYASHI NOBUAKI
• Format: Patent
• Language: English; Japanese
• Published: 11.10.2021
• Subjects: 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; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

To provide a catheter that ensures slidability of a guide wire without adding any steps or changing a material, and to provide a method for manufacturing a catheter.SOLUTION: A catheter includes: an inner layer 24 surrounding a main lumen 20; a reinforcement layer 30 formed of a reinforcement wire 32 and wound so as to be placed in a skew position relative to the main lumen 20; and an outer layer 50 in which the reinforcement layer 30 is embedded and which surrounds the main lumen 20 together with the inner layer 24. In the catheter, a projecting streak is formed along the reinforcement wire 32 in at least part of an inner surface 201 of the inner layer 24.SELECTED DRAWING: Figure 2 【課題】工程の追加や材料の変更をせずにガイドワイヤの摺動性を確保するカテーテル及びカテーテルの製造方法を提供する。【解決手段】主管腔２０を取り囲む内層２４と、補強ワイヤ３２によって形成されて、主管腔２０とねじれの位置にあるように巻き回される補強層３０と、補強層３０を埋設し、内層２４と共に主管腔２０を取り囲む外層５０と、を有し、内層２４の内表面２０１の少なくとも一部に、補強ワイヤ３２に沿って凸条が形成されているカテーテルを構成する。【選択図】図２