Development of a Minimally Invasive, Injectable, Shape Memory Suture and Delivery System

2012 ◽  
Vol 40 (7) ◽  
pp. 1520-1529 ◽  
Author(s):  
Jeffrey L. Olson ◽  
Robin Shandas ◽  
Michael Erlanger
Keyword(s):  
Minimally Invasive ◽  
Shape Memory ◽  
Delivery System

scholarly journals Shape Memory Polymer-Based Insertable Electrode Array towards Minimally Invasive Subdural Implantation

2021 ◽  
pp. 1-1
Author(s):  
Anastasiia Kravtcova ◽  
Antoniya Toncheva ◽  
Samuel Rantataro ◽  
Emilia Peltola ◽  
Jean-Marie Raquez ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Shape Memory ◽  
Shape Memory Polymer ◽  
Electrode Array

scholarly journals Isocyanate Modified GO Shape-Memory Polyurethane Composite

Polymers ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 118 ◽  
Author(s):  
Yuanchi Zhang ◽  
Jinlian Hu
Keyword(s):  
Graphene Oxide ◽  
Minimally Invasive ◽  
Shape Memory ◽  
Bone Repair ◽  
Recovery Process ◽  
Invasive Treatment ◽  
Element Analysis ◽  
Polyurethane Composite ◽  
Shape Memory Effects ◽  
Shape Memory Polyurethane

Shape-memory composites have benefits for minimally invasive surgery, but their wider applications for bone repair are hindered by conflicts between the mechanical and memory performances, especially at load-bearing locations. In this study, we fabricated a graphene oxide shape-memory polyurethane composite through the chemical combination of graphene oxide and isocyanate, in order to realize satisfactory mechanical and shape-memory effects. As desired, a modulus of ~339 MPa and a shape recovery ratio of 98% were achieved, respectively, in the composite. In addition, finite element analysis demonstrated that, after being implanted in a defective bone through a minimally invasive treatment, where the highest stress was distributed at the implant–bone interface, this composite could offer a generated force during the recovery process. Furthermore, we also discuss the origins of the improved mechanical and memory properties of the composites, which arise from increased net-points and the stable molecular structure inside. Therefore, with its superior structure and properties, we envision that this shape-memory composite can provide new insights toward the practical application of shape-memory polymers and composites in the field of bone repair.

scholarly journals Chitosan scaffolds with a shape memory effect induced by hydration

2014 ◽  
Vol 2 (21) ◽  
pp. 3315-3323 ◽  
Author(s):  
Cristina O. Correia ◽  
João F. Mano
Keyword(s):  
Minimally Invasive Surgery ◽  
Minimally Invasive ◽  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Invasive Surgery ◽  
Porous Scaffolds ◽  
Chitosan Scaffolds

Chitosan-based porous scaffolds exhibit a shape memory effect triggered by hydration, and they are candidates for applications in minimally invasive surgery.

scholarly journals Evaluation of a Shape Memory Alloy Reinforced Annuloplasty Band for Minimally Invasive Mitral Valve Repair

2009 ◽  
Vol 88 (4) ◽  
pp. 1312-1316 ◽  
Author(s):  
Molly F. Purser ◽  
Andrew L. Richards ◽  
Richard C. Cook ◽  
Jason A. Osborne ◽  
Denis R. Cormier ◽  
...  
Keyword(s):  
Mitral Valve ◽  
Shape Memory Alloy ◽  
Minimally Invasive ◽  
Shape Memory ◽  
Mitral Valve Repair ◽  
Valve Repair
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