Results 141 to 150 of about 133,854 (326)

First Ex Vivo Animal Study of a Biological Heart Valve Prosthesis Sensorized with Intravalvular Impedance. [PDF]

Sensors (Basel), 2023
Cercenelli L, Gironi C, Bortolani B, Marcelli E.   +3 more
europepmc   +1 more source

Manufacturing studies of a polymeric/composite heart valve prosthesis

Polymer Composites
AbstractCurrent transcathether heart valves rely on metal mesh stents, resulting in discontinuous stent‐leaflet interfaces that introduce stress concentrations, reducing valve lifetime. This work aims to investigate non‐conventional methods to create a fully polymeric transcatheter heart valve, exhibiting a quasi‐continuous interface with ...
Mary Jialu Chen, Georgios A. Pappas, Caroline C. Smid, Nikola Cesarovic, Volkmar Falk, Paolo Ermanni   +5 more
openaire   +1 more source

Five-Year Follow-up After Heart Valve Replacement With the CarboMedics Bileaflet Prosthesis [PDF]

, 1997
Suzanne Rödler, Anton Moritz, Wolfgang Schreiner, Adelheid End, Peter Dubsky, Ernst Wolner   +5 more
openalex   +1 more source

From Bioinks to Functional Tissues and Organs: Advances, Challenges, and the Promise of 3D Bioprinting

Macromolecular Materials and Engineering, EarlyView.
This review explores recent advances in 3D bioprinting, emphasizing printing technologies, bioink design, and emerging strategies such as cryogenic printing. Key challenges in biocompatibility, vascularization, and scalability are discussed, alongside opportunities for clinical translation.
Muhammad Wajid Ullah, Mazhar Ul‐Islam, Adeeb Shehzad, Sehrish Manan, Salman Ul Islam, Atiya Fatima, Abdullah Khamis Al‐Saidi, Mustapha El Hariri El Nokab, Juan Quevedo Sanchez, Khaled O. Sebakhy   +9 more
wiley   +1 more source

Long-term evaluation of TTK Chitra™ heart valve prosthesis - a retrospective-prospective cohort study. [PDF]

Indian J Thorac Cardiovasc Surg, 2023
Varma PK, Vijayakumar M, Bhuvaneshwar GS, Kumar AS, Krishna N.   +4 more
europepmc   +1 more source

Characterization of Enhanced UHMWPE‐Hap Composites Manufactured by Hot Pressing

Polymer Composites, EarlyView.
Illustration of the production and examination of prepared composite samples. ABSTRACT In the present study, a hip joint cup/liner material has been developed using ultra high molecular weight polyethylene (UHMWPE) matrix material which is reinforced by hydroxyapatite (HAp) particles with the 0.5, 1, 2, and 4 wt.% using mechanical activation followed ...
Gözde Çelebİ Efe, Tuba Yener, Merve Seda Zor, Serbülent Türk, Cuma Bİndal   +4 more
wiley   +1 more source

Laser Doppler anemometry measurements of steady flow through two bi-leaflet prosthetic heart valves

Brazilian Journal of Cardiovascular Surgery, 2013
INTRODUCTION: In vitro hydrodynamic characterization of prosthetic heart valves provides important information regarding their operation, especially if performed by noninvasive techniques of anemometry. Once velocity profiles for each valve are provided,
Ovandir Bazan, Jayme Pinto Ortiz, Francisco Ubaldo Vieira Junior, Reinaldo Wilson Vieira, Nilson Antunes, Fabio Bittencourt Dutra Tabacow, Eduardo Tavares Costa, Orlando Petrucci Junior   +7 more
doaj   +1 more source

Large Animal Models for Transcatheter Heart Valve Prosthesis Development: Making Sheep's Eyes at Supra-Annular Banding. [PDF]

JACC Basic Transl Sci, 2022
Modine T, Ben Ali W, Perrin N.
europepmc   +1 more source

Characteristics, properties and limitations of per‐ or polyfluoroalkyl substances (PFASs) and fluoropolymers

Polymer International, EarlyView.
An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley   +1 more source

Treatment Strategies and Risk of Recurrence in Patients With Heart Valve Prosthesis, Staphylococcus aureus Bacteremia, and Possible Endocarditis-A Retrospective Cohort Study. [PDF]

Open Forum Infect Dis, 2022
Toth N, Nilson B, Berge A, Rasmussen M.
europepmc   +1 more source