Results 101 to 110 of about 438,214 (236)

Comparison of Two Partially Covered Metal Stents for Endoscopic Ultrasound‐guided Hepaticogastrostomy: A Multi‐Center Retrospective Study

DEN Open, Volume 7, Issue 1, April 2027.
ABSTRACT Objectives Endoscopic ultrasound‐guided hepaticogastrostomy (EUS‐HGS) is an alternative biliary drainage method after failed endoscopic retrograde cholangiopancreatography. Nevertheless, it is associated with adverse events (AEs), including peritonitis and stent migration.
Masahiro Yamamura, Hirotoshi Ishiwatari, Saburo Matsubara, Takeshi Okamoto, Michihiro Ono, Toshinori Okuda, Etsuji Ishida, Kohichi Takada, Kazuma Ishikawa, Naoki Sasahira, Kentaro Suda, Morito Ikeda, Daichi Watanabe, Junya Sato, Hiroki Sakamoto, Akihiro Ohba, Takuya Doi, Akifumi Notsu   +17 more
wiley   +1 more source

Validação de método experimental para medição do potencial de corrosão de liga metálica em sangue humano in vivo [PDF]

, 2011
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Programa de Pós-Graduação em Ciências Médicas, Florianópolis, 2011Justificativa: Ligas metálicas são utilizadas em dispositivos médicos para uso intravascular ...
Serafin, João Daniel May
core  

Clinical Outcomes of Multi‐Hole Covered Self‐Expandable Metal Stents for Malignant Distal Biliary Obstruction: A Retrospective Comparative Study With an Exploratory Evaluation of 6‐mm Devices

DEN Open, Volume 7, Issue 1, April 2027.
ABSTRACT Objectives Covered self‐expandable metal stents (CSEMS) are widely used for malignant distal biliary obstruction (MDBO), but cholecystitis, post‐endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis (PEP), stent migration, and recurrent biliary obstruction (RBO) remain clinically important limitations.
Akinobu Koiwai, Yuki Miyashita, Nana Inomata, Takehito Ito, Morihisa Hirota, Kennichi Satoh   +5 more
wiley   +1 more source

Nitride coating enhances endothelialization on biomedical NiTi shape memory alloy

, 2016
International audienceSurface nitriding was demonstrated to be an effective process for improving the biocompatibility of implantable devices. In this study, we investigated the benefits of nitriding the NiTi shape memory alloy for vascular stent ...
Luculescu, Catalin, Cimpean, Anisoara, Gloriant, Thierry, Ion, Raluca, Marx, Philippe, Gordin, Doina-Margareta   +5 more
core   +1 more source

Effect of Cu and CuP Additions on the Microstructure and Nanoindentation‐Based Fracture Behavior of CoNiAlSi Ferromagnetic Shape Memory Alloys

Advanced Engineering Materials, Volume 28, Issue 19, 7 October 2026.
Cu and combined Cu–P microalloying refine the microstructure and enhance the nanoindentation‐derived fracture resistance of CoNiAlSi ferromagnetic shape memory alloys without suppressing the martensitic transformation. Comparative SEM, DSC, and nanoindentation results reveal that the CuP‐containing alloy provides the most balanced response, achieving ...
Mehmet Demir
wiley   +1 more source

Continuous vertical casting of a NiTi alloy

Materiali in tehnologije, 2016
In this paper we present research that is connected to the performance of a series of experiments combined with the vacuum-induction melting and continuous vertical casting of a NiTi alloy in order to produce the strand. The theoretical chosen parameters made it possible to obtain a continuously cast strand with a diameter of 11 mm.
Stambolić, Aleš, Anžel, Ivan, Lojen, Gorazd, Kocijan, Aleksandra, Jenko, Monika, Rudolf, Rebeka   +5 more
openaire   +1 more source

Soft Skins With Reversible Thickness Morphing: Materials, Mechanisms, and Applications

Advanced Materials, Volume 38, Issue 55, 1 October 2026.
Evolution of electronic skin (e‐skin) technologies toward adaptive, multifunctional soft skins. Phase I highlights early rigid and discrete sensory interfaces. Phase II shows the transition toward flexible, stretchable, and large‐area e‐skin. Phase III captures the emergence of computational e‐skin.
Oliver Ozioko, Chiamaka Akah, Ravinder Dahiya   +2 more
wiley   +1 more source

A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels

Advanced Robotics Research, Volume 2, Issue 5, October 2026.
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, Ruokun He, Luqi Li, Hesheng Wang, Zhuo‐Chen Ma, Bing Han   +5 more
wiley   +1 more source

Evaluation of the interfacial shear strength between pseudoplastic NiTi shape memory alloy wires and epoxy by the pull-out method

The interfacial shear strength (IFSS) between nickel-titanium (NiTi) shape memory alloy wires, characterized by a nonlinear stress-strain behavior, and epoxy matrix was determined by pull-out tests.
Andersons, J., Michaud, V., Sparnins, E., Leterrier, Y.   +3 more
core   +1 more source

Martensitic transformation in NiTi alloy covered by protective multi-layers [PDF]

, 2015
Commercial NiTi shape memory alloy was covered with multi-layers. First, titanium nitride and titanium oxide was deposited on polished surface of the NiTi alloy. Layers were deposited in one process - a glow discharge technique.
Lelątko, Józef, Wierzchoń, T., Dudek, Karolina, Goryczka, Tomasz   +3 more
core