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On-line Access: 2023-08-17
Received: 2023-01-09
Revision Accepted: 2023-06-25
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Proof of concept of a self-tightening needle-less suture using a NiTi shape memory alloy
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Adelaide Nespoli, Davide Ninarello, Enrico Bassani & Villiam Dallolio . Proof of concept of a self-tightening needle-less suture using a NiTi shape memory alloy[J]. Journal of Zhejiang University Science D, 2023, 6(5): 536–549.
@article{title="Proof of concept of a self-tightening needle-less suture using a NiTi shape memory alloy",
author="Adelaide Nespoli, Davide Ninarello, Enrico Bassani & Villiam Dallolio ",
journal="Journal of Zhejiang University Science D",
volume="6",
number="5",
pages="536–549",
year="2023",
publisher="Zhejiang University Press & Springer",
doi="10.1007/s42242-023-00254-2"
}
%0 Journal Article
%T Proof of concept of a self-tightening needle-less suture using a NiTi shape memory alloy
%A Adelaide Nespoli
%A Davide Ninarello
%A Enrico Bassani & Villiam Dallolio
%J Journal of Zhejiang University SCIENCE D
%V 6
%N 5
%P 536–549
%@ 1869-1951
%D 2023
%I Zhejiang University Press & Springer
%DOI 10.1007/s42242-023-00254-2
TY - JOUR
T1 - Proof of concept of a self-tightening needle-less suture using a NiTi shape memory alloy
A1 - Adelaide Nespoli
A1 - Davide Ninarello
A1 - Enrico Bassani & Villiam Dallolio
J0 - Journal of Zhejiang University Science D
VL - 6
IS - 5
SP - 536–549
EP -
%@ 1869-1951
Y1 - 2023
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1007/s42242-023-00254-2
Abstract: Among surgical procedures, suturing is considered simple. However, in some situations, suturing is not easy or feasible. Here, we present proof of concept of a new self-tightening needle-less suture made of a niTi alloy. The new device is designed to overcome two demanding steps of traditional suturing: needle introduction and manual knotting. Our novel suture is composed only of a short niTi wire that is able to change shape by exploiting a thermoelastic phase transition. This shape change is achieved by increasing the temperature from that of the operating room (e.g., 20–22 °C) to 32 °C using warm water. suturing 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 material. Finally, thermal and functional characterization verified the simplicity and effectiveness of the proposed device.
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