Results 71 to 80 of about 12,334 (194)

Microfabricated Nitinol Stent Retrievers with a Micro-Patterned Surface

Micromachines
Stent retrievers are medical devices that are designed to physically remove blood clots from within the blood vessels of the brain. This paper focuses on microfabricated nitinol (nickel–titanium alloy) stent retrievers, which feature micro-patterns on ...
Shogo Kato, Yuzuki Ban, Takashi Ota, Norihisa Miki   +3 more
doaj   +1 more source

Safer Access With Fewer Transfusions: Revisiting Platelet Thresholds in Pediatric Central Venous Catheterization

European Journal of Haematology, EarlyView.
ABSTRACT Background Central venous catheters (CVCs) are essential in pediatric hematology‐oncology, for the administration of chemotherapy and supportive therapy. Thrombocytopenia increases the risk of bleeding and current guidelines recommend prophylactic platelet transfusions below 40–50 × 109/L, though evidence is limited and transfusions entail ...
Alessandro Raffaele, Carlo Maria Ferlini, Marta Gazzaneo, Piero Giovanni Romano, Bilge Rol, Francesco Delle Cave, Stella Boghen, Tommaso Mina, Marco Zecca   +8 more
wiley   +1 more source

Late Extraction of Micra AV and Implantation of Right Atrial Leadless Pacemaker

Pacing and Clinical Electrophysiology, EarlyView.
ABSTRACT Background Tine‐based leadless pacemakers have been commercially implanted over the last 10 years. Retrieval of older devices is rarely discussed and based on rare case reports only. Methods A retrospective review of an extraction case of a Micra AV leadless pacemaker was performed. Internal Review Board approval was obtained.
Lydia Fekadu Messele, Dali Fan, Lin‐Chiang Philip Chou, Daniel Cortez   +3 more
wiley   +1 more source

Current Models of Transcatheter Aortic Valves: Comparative Analysis of Design, Clinical Outcomes and Development Prospects

Applied Sciences
Objectives: Transcatheter aortic valve implantation (TAVI) has become the standard of care for severe aortic stenosis across all surgical risk categories. Continuous innovation in prosthesis technology necessitates a comprehensive and clinically oriented
Konstantin Kozyr, Bogachev-Prokophiev Alexander, Oleg Krestyaninov, Ravil Sharifulin, Anton Zalesov, Alexandra Mochalova, Bashir Tsaroev, Svetlana Tamkovich   +7 more
doaj   +1 more source

Compositional Influence on Martensitic Transformations in Ni-Ti Alloys by Molecular Dynamics [PDF]

Materials Research
Over the last decades, high-entropy refractory alloys with shape memory (SM) effect have been increasingly studied. However, identifying the optimal composition among the vast array of potential systems remains a significant challenge for the scientific ...
Luis César Rodríguez Aliaga, Pedro Henrique Pinheiro de Souza, Ivan Napoleão Bastos, Alexandre Melhorance Barboza   +3 more
doaj   +1 more source

Assessment of dose distribution in pancreatic SABR in the presence of a metallic biliary stent using Monte Carlo modeling

Journal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.
Abstract Background Stereotactic ablative radiotherapy (SABR) with dose escalation is increasingly used for pancreatic cancer; however, the dosimetric impact of metallic biliary stents remains poorly characterized. Self‐expanding metal stents (SEMS), commonly placed for obstructive jaundice, contain high‐density nitinol that produces computed ...
Ahmad Abbas, Owen Nicholas, Richard P. Hugtenburg   +2 more
wiley   +1 more source

Review of EDM-Based Machining of Nickel–Titanium Shape Memory Alloys

Quantum Beam Science
Shape memory alloy (SMA) materials are valued for their shape memory effect, superelasticity, and biocompatibility, making them an ideal choice for applications in biomedical, aerospace, and actuator fields.
Sujeet Kumar Chaubey, Kapil Gupta
doaj   +1 more source

Electrohydraulic Folding Ring Actuators for Radially Contracting Applications

Advanced Science, Volume 13, Issue 44, 7 August 2026.
This work presents an Electrohydraulic Folding Ring Actuator that combines high‐performance electrohydraulic actuation with origami‐inspired folding geometry to achieve constricting radial actuation. This integration yields significant inner lumen constriction, alongside a gripping force capable of holding objects exceeding four times the actuator's ...
Gavril Yong En Tan, Quan Xiong, Jonathan William Ambrose, Zeynep Altundal, Raye Chen‐Hua Yeow   +4 more
wiley   +1 more source

Interventional Mechanical Thrombectomy for Limb Salvage in Rapidly Progressive Phlegmasia Cerulea Dolens

Clinical Case Reports, Volume 14, Issue 8, August 2026.
ABSTRACT Mechanical thrombectomy can provide rapid, fibrinolysis‐free restoration of venous flow in phlegmasia cerulea dolens. This case highlights an unusually severe course with extensive iliofemorocaval thrombosis, rhabdomyolysis, MRI‐confirmed muscle necrosis, and arterial hypoperfusion despite anticoagulation, in which urgent intervention achieved
Johan Filo, Manuel Stern, Malte Kelm, Lucas Busch, Patricia Wischmann   +4 more
wiley   +1 more source

Feasibility Study of Microneedle Fabrication from a thin Nitinol Wire Using a CW Single-Mode Fiber Laser

Open Engineering, 2019
In this paper, feasibility studies are presented on microneedle fabrication by using a multiple-pulse laser microhole drilling technique to drill an axial hole into a thin nitinol wire of 150 μm in diameter. Nitinol is chosen for its biocompatibility and
Tu Jay, Reeves Nicolas
doaj   +1 more source