PROCESS FOR MAKING CRUSH RECOVERABLE POLYMER SCAFFOLD

• Main Authors: DUDLEY JAYASINGHE, RON FARNBACH, XIE YONGJIN, MICHAEL H NGO, HUNG T NGUYEN, JOHN E PAPP, JOSHUA SMITH, MIKAEL TROLLSAS, KU YUUN, GREGORY C ORR
• Format: Patent
• Language: English; Japanese
• Published: 30.03.2017
• 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

PROBLEM TO BE SOLVED: To provide prostheses that have a desirable quality of a balloon expanded stent for treating peripheral vessels, do not give an outward residual force to blood vessels, and simultaneously, is sufficiently resilient in recovering from a pinching load or a crushing load in the peripheral vessels in addition to other load events expected in the peripheral vessels which normally the coronary artery scaffold does not face.SOLUTION: Methods for making scaffolds for delivery via a balloon catheter are described. The scaffold, after being deployed by the balloon, provides a crush recovery of about 90% after the diameter of the scaffold has been pinched or crushed by 50%. The scaffold structure has patterns that include an asymmetric or symmetric closed cell, and links connecting such closed cells.SELECTED DRAWING: Figure 1 【課題】末梢血管を治療するための、バルーン拡張ステントの望ましい品質を有し、血管に外向きの残留力を及ぼさず、同時に、通常は冠動脈スキャフォールドが直面することのない末梢血管内で予期される他の負荷事象に加えて、末梢血管内のピンチング負荷または圧潰負荷から復元するのに十分に弾力性のある人工器官を提供する。【解決手段】バルーンカテーテルを介して送達するためのスキャフォールドの作製方法について説明する。バルーンにより展開された後のスキャフォールドは、スキャフォールドの直径が５０％挟まれたまたは圧潰された後に約９０％の圧潰復元性を提供する。スキャフォールド構造は、非対称または対称なクローズドセルと、そのようなクローズドセルを連結するリンクとを含むパターンを有する。【選択図】図１