Results 51 to 60 of about 19,946 (256)

Hemodynamic evaluation of pulsatile-flow generating device in left ventricular assist devices

Вестник трансплантологии и искусственных органов, 2023
Objective: to investigate the efficiency of a device that generates pulsatile flow during constant-speed axial-flow pump operation for use in left ventricular assist devices.Materials and methods.
A. S. Buchnev, A. P. Kuleshov, O. Yu. Esipova, A. A. Drobyshev, N. V. Grudinin   +4 more
doaj   +1 more source

Mechanically Compliant, Precision‐Porous Brain Implants Reduce the Foreign Body Reaction and Guide Regeneration

Advanced Healthcare Materials, EarlyView.
This study explores how the brain responds to implants of different properties. Hydrogels with various mechanical properties and pore sizes were implanted in adult rat brains. It is observed that hydrogels with mechanical property closely matched to the brain and 40 µm pore size elicit a pro‐healing response from the brain by modulating the immune ...
Ian Dryg, Le Zhen, Rebecca Darrow, Savannah Lawton, Lars Crawford, Robert Robinson, Steve Perlmutter, James D. Bryers, Buddy D. Ratner   +8 more
wiley   +1 more source

Iron Deficiency in Patients with Left Ventricular Assist Devices

Cardiac Failure Review
Iron deficiency is a common and independent predictor of adverse outcomes in patients with heart failure. The implications of iron deficiency in patients implanted with a left ventricular assist device (LVAD) are less established. This review recaps data
William Herrik Nielsen, Finn Gustafsson
doaj   +1 more source

A Geometrically Transient Platform for Bioelectronic Implants

Advanced Materials, EarlyView.
Minimally invasive bioelectronic implants often compromise performance for smaller sizes. To resolve this optimization dilemma, a wireless bioelectronic implant with a transient geometry is introduced (MiFi). The origami‐inspired device miniaturizes up to sixfold for syringe insertion and autonomously unfolds post‐implantation.
Selin Olenik, John D. Goodwin, Atharv Naik, Philip Coatsworth, Ioi Chit Cheung, Farbod Amirghasemi, Anies Sohi, Ehsan Abedi, Tayeb Tadlaoui, Maral P. S. Mousavi, Andriy S. Kozlov, Victoria Salem, Andrew S. Cowburn, Firat Guder   +13 more
wiley   +1 more source

From Fiber Bundles to Architected Membranes: Triply Periodic Minimal Surface Architectures for Biohybrid Artificial Lungs

Advanced Materials, EarlyView.
Additively manufactured triply periodic minimal surface (TPMS) membranes offer an architecture‐driven alternative to hollow fiber bundles in artificial lungs. Multiphysics simulations and endothelialized prototypes show that the 3D‐printable membrane architecture improves gas exchange, blood flow distribution, and hemocompatibility, enabling ...
Michael Pflaum, Kai P. Barbian, Florian Neuhaus, Gerrit Sitarz, Carolin Nölke, Sebastian V. Jansen, John Linkhorst, Lukas T. Hirschwald, Sebastian Brosch, Christian Certa, Ulrich Steinseifer, Matthias Wessling, Jutta Arens, Arjang Ruhparwar, Bettina Wiegmann   +14 more
wiley   +1 more source

Using left ventricular assist devices in advanced heart failure patients

Journal of Community Hospital Internal Medicine Perspectives, 2018
Advanced Heart Failure (AHF) is a complex syndrome that affects the physiology of the heart to maintain efficient blood circulation resulting in multiorgan failure and, eventually, death.
Syed Raza Shah, Najla Issa Najim, Syed Arbab Shah, Waqas Shahnawaz, Muhammad Ahmed Jangda   +4 more
doaj   +1 more source

Platelet activation and aggregation in different centrifugal-flow left ventricular assist devices

Platelets, 2022
Left-ventricular assist devices (LVADs) improve outcomes in end-stage heart failure patients. Two centrifugal-flow LVAD systems are currently approved, HeartMate 3 (HM3) and Medtronic/Heartware HVAD (HVAD).
Maximilian Tscharre, Franziska Wittmann, Daniela Kitzmantl, Silvia Lee, Beate Eichelberger, Patricia P. Wadowski, Günther Laufer, Dominik Wiedemann, Birgit Forstner-Bergauer, Cihan Ay, Simon Panzer, Daniel Zimpfer, Thomas Gremmel   +12 more
doaj   +1 more source

From Rigid to Soft Robotic Approaches for Neuroendoscopy

Advanced 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, Irena Zubak, Andreas Raabe, Josie Hughes   +3 more
wiley   +1 more source

Strategic Design of Soft Actuators in Translational Medical Robotics for Human‐Centered Healthcare

Advanced Robotics Research, EarlyView.
Soft robotics enables biocompatible, compliant medical devices, but clinical translation requires design‐driven engineering beyond materials. This perspective reviews implantable, surgical, and wearable systems by actuation mechanism, highlighting how optimized architectures and integration improve mechanical interfacing, adaptability, and durability ...
Ho Jun Jin, Jimin Kim, Inho Kim, Bong Hoon Kim   +3 more
wiley   +1 more source

Postoperative outcomes following rehabilitation in patients with left ventricular assist devices

Monaldi Archives for Chest Disease, 2020
Postoperative rehabilitation is a cornerstone of the recovery pathway following left ventricular assist device implantation (LVAD), and patients are expected to conduct an autonomous life thanks to improved technology and increased knowledge of ...
Massimiliano Polastri, Silvia Boschi, Giorgia Brillanti, Sofia Martin-Suarez, Marco Masetti, Luciano Potena, Antonio Loforte   +6 more
doaj   +1 more source