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Finite element analysis and its application in Orthopaedics: A narrative review.
J Clin Orthop Trauma
November 2024
Department of Orthopaedics, All India Institute of Medical Sciences, Rishikesh, India, 249203.
Orthopedic surgery and traumatology necessitate cost-effective approaches that can be replicated across multiple venues. Finite Element (FE) simulation models have evolved as a solution, allowing for consistent investigations into biomechanical systems. Finite Element Analysis (FEA), which began in the 1950s aviation industry, has since expanded into orthopedics.
View Article and Find Full Text PDFPreclinical evaluation of a surgical assistant robot for use in minimally invasive abdominal surgeries.
Biomed Eng Lett
January 2025
Colorectal Cancer Center, Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea.
In recent years, robotic assistance has become increasingly used and applied in minimally invasive surgeries. A new cooperative surgical robot system that includes a joystick-guided robotic scope holder was developed in this study, and its feasibility for use in minimally invasive abdominal surgery was evaluated in a preclinical setting. The cooperative surgical robot consists of a six-degree-of-freedom collaborative robot arm and a one-degree-of-freedom bidirectional telescopic end-effector specializing in surgical assistance.
View Article and Find Full Text PDFA novel multilayer antimicrobial urinary catheter material with antimicrobial properties.
Mater Adv
December 2024
Cardiff University School of Pharmacy and Pharmaceutical Sciences, Redwood Building King Edward VII Ave Cardiff CF10 3NB UK
Urinary catheters are commonly used in medical practice to drain and monitor urine of patients. However, urinary catheterisation is associated with the risk of developing catheter-associated urinary tract infections (CAUTIs), which can result in life-threatening sepsis that requires antibiotics for treatment. Using the layer-by-layer (LbL) technique, we assembled a multilayer catheter comprising nine quadruple layers (9QL) of alginate, chlorhexidine (CHX), alginate and poly(β-amino ester) (PBAE) built upon an amino-functionalised silicone.
View Article and Find Full Text PDFValidation of the inadequate delivery of oxygen index in an adult cardiovascular intensive care unit.
JTCVS Open
December 2024
Division of Cardiothoracic Surgery, Department of Surgery, Medical University of South Carolina, Charleston, SC.
Objective: Machine learning (ML) may allow for improved discernment of hemodynamics and oxygen delivery compared to standard invasive monitoring. We hypothesized that an ML algorithm could predict impaired delivery of oxygen (IDO) with comparable discrimination to invasive mixed venous oxygen saturation (SvO) measurement.
Methods: A total of 230 patients not on mechanical circulatory support (MCS) managed with a pulmonary artery catheter (PAC) were identified from 1012 patients admitted to a single cardiovascular intensive care unit (CVICU) between April 2021 and January 2022.
Airway pressures generated by high flow nasal cannula in patients with acute hypoxemic respiratory failure: a computational study.
Respir Res
January 2025
School of Engineering, University of Warwick, Coventry, CV4 7AL, UK.
Introduction And Objectives: High flow nasal cannula (HFNC) therapy is an increasingly popular mode of non-invasive respiratory support for the treatment of patients with acute hypoxemic respiratory failure (AHRF). Previous experimental studies in healthy subjects have established that HFNC generates flow-dependent positive airway pressures, but no data is available on the levels of mean airway pressure (mP) or positive end-expiratory pressure (PEEP) generated by HFNC therapy in AHRF patients. We aimed to estimate the airway pressures generated by HFNC at different flow rates in patients with AHRF, whose functional lung volume may be significantly reduced compared to healthy subjects due to alveolar consolidation and/or collapse.
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