Proof of concept of a self-tightening needle-less suture using a NiTi shapememory alloy

作     者：Adelaide Nespoli Davide Ninarello Enrico Bassani Villiam Dallolio Adelaide Nespoli;Davide Ninarello;Enrico Bassani;Villiam Dallolio

作者机构：Institute of Condensed Matter Chemistry and Technologies for EnergyNational Research Council(CNR-ICMATE)23900 LeccoItaly Promev Srl23900 LeccoItaly 

出 版 物：《Bio-Design and Manufacturing》 (生物设计与制造（英文）)

年 卷 期：2023年第6卷第5期

页      面：536-549页

核心收录：

学科分类：08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：Funding was provided by Regione Lombardia(Grant No.BANDO MISE Brevetti+N.BRE0000721) 

主　　题：Suture NiTi Shape memoryalloys Suturing Medical device 

摘      要：Among surgical procedures,suturing is considered ***,in some situations,suturing is not easy or ***,we present proof of concept of a new self-tightening needle-less suture made of a NiTi *** new device is designed to overcome two demanding steps of traditional suturing:needle introduction and manual *** novel suture is composed only of a short NiTi wire that is able to change shape by exploiting a thermoelastic phase *** shape change is achieved by increasing the temperature from that of the operating room(e.g.,20-22℃)to 32℃using warm *** consists of two steps:suture introduction,in which the suture is in an open configuration,and shape recovery(i.e.,closed configuration).The closed configuration is maintained at human body temperature thanks to peculiar pseudoelastic properties of the NiTi ***,thermal and functional characterization verified the simplicity and effectiveness of the proposed device.