Results 71 to 80 of about 37,649 (295)

From Rigid to Soft Robotic Approaches for Neuroendoscopy

open access: yesAdvanced Robotics Research, EarlyView.
Robotic assistance has had minimal impact on deep intraventricular surgeries, where small‐scale, precision, and reduced invasiveness can contribute to improved patient outcomes. Emerging technologies in rigid, soft, and hybrid robotics are reviewed to identify the most promising mechanisms for deep brain navigation in addition to an attempt to identify
Kieran Gilday   +3 more
wiley   +1 more source

Characterization Techniques of a Shape Memory Nickel Titanium Alloy

open access: yesProceedings, 2020
This paper presents a characterization processes study of metallic alloys, more specifically the shape memory alloys (SMA) composed by Nickel and Titanium (NiTinol).
Carlos Andrade   +4 more
doaj   +1 more source

Processing of Porous NITI Preforms for NITI/MG Composites [PDF]

open access: yesArchives of Metallurgy and Materials, 2019
NiTi alloys are successfully used in engineering and medical applications because of their properties, such as shape memory effect, superelasticity or mechanical strength.
A. Kucharczyk, K. Naplocha, M. Tomanik
doaj   +1 more source

Differential Scanning Calorimetry (DSC) Analyses Of Superelastic And Nonsuperelastic Nickel-Titanium Orthodontic Wires [PDF]

open access: yes, 1996
The purpose of this study was to determine the transformation temperatures for the austenitic, martensitic, and rhombohedral (R) structure phases in representative as-received commercial nitinol (NiTi) orthodontic wire alloys, to reconcile discrepancies ...
Bradley, T. Gerard   +2 more
core   +3 more sources

A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels

open access: yesAdvanced Robotics Research, EarlyView.
A magnetically steerable microcatheter with integrated optical and fluidic channels is developed for multifunctional navigation in tortuous anatomical environments. A surface‐grafted hydrogel coating enables low‐friction actuation. The device demonstrates stable light and fluid delivery during magnetic manipulation, offering a compact platform for ...
Yuntian Du   +5 more
wiley   +1 more source

Development of a nitinol-actuated surgical instrument for laparoscopic renal denervation: feasibility test in a swine survival model

open access: yesInternational Journal of Hyperthermia, 2020
Purpose In this study, we developed a novel nitinol-actuated surgical instrument to conduct laparoscopic renal denervation for the treatment of resistant hypertension.
Donghyun Yim   +5 more
doaj   +1 more source

Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots

open access: yesAdvanced Robotics Research, EarlyView.
A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun   +3 more
wiley   +1 more source

Comparing the Use of Nitinol Compression Screws to Traditional Compression Screws in Foot and Ankle Surgery

open access: yesFoot & Ankle Orthopaedics
Category: Hindfoot; Midfoot/Forefoot Introduction/Purpose: Nitinol is a metal alloy with high elastic flexibility and shape memory characteristics, making it effective in orthopedic surgery.
Chase Gauthier MD   +8 more
doaj   +1 more source

NiTinol: A Review of its Smart Properties that Make it a Smart Alloy and a Strong Ally in Endovascular Neurosurgery

open access: yesIndian Journal of Neurosurgery
Nitinol is an equiatomic alloy of nickel and titanium. Its unique properties like “superelasticity” and “shape memory” have made it one of the most commonly used materials for manufacturing hardware in endovascular neurosurgery.
Dibya Jyoti Mahakul   +5 more
doaj   +1 more source

A shape memory alloy adaptive tuned vibration absorber: design and implementation

open access: yes, 2005
In this paper a tuned vibration absorber (TVA) is realized using shape memory alloy (SMA) elements. The elastic modulus of SMA changes with temperature and this effect is exploited to develop a continuously tunable device.A TVA with beam elements is ...
Brennan, M.J., Mace, B.R., Rustighi, E.
core   +1 more source

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