Drug-loaded microneedle balloon dilatation catheter and preparation method thereof

• Main Authors: ZHONG SHENGNAN, FANG XIN, JI PEIHONG, YANG LIFENG
• Format: Patent
• Language: Chinese; English
• Published: 06.01.2023
• 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

The invention discloses a drug-loaded microneedle balloon dilatation catheter and a preparation method thereof.The drug-loaded microneedle balloon dilatation catheter comprises a catheter body, a balloon dilatation layer, a drug-loaded microneedle balloon dilatation layer and a drug-loaded microneedle balloon dilatation layer, and the catheter body is provided with a far end and a near end which are opposite to each other; the balloon body is fixed at the far-end part of the tube body, and the balloon body is of a hollow structure; the woven mesh is made of a high polymer material and wraps the periphery of the balloon body, the woven mesh is provided with a plurality of cells, the width of each cell is X, the length of each cell is Y, and X: Y = 1: (0.5-2); the area S of the cells is 1-50 mm < 2 >, and the drug-loading microneedles are arranged on the surface of the balloon body and located in the cells of the woven mesh and/or at interlacing points of the cells. The drug-loaded microneedle balloon dilatatio