The authors offer a system for auxiliary circulation (a "hybrid man-made heart"), review design varieties, describe the functioning of the system. The paper is of interest for designers of the systems for extracorporeal circulation and for practicing physicians concerned with the problems of cardiology.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Influence of drilling incidence angle on the drilling force distribution of pneumatic impactor.
Sci Rep
January 2025
School of Mechanical and Electrical Engineering, Quzhou College of Technology, Quzhou, 324000, China.
Pneumatic impactor is widely used in the drilling process of various medium and high hard rocks with poor drill ability. Currently, there is relatively little analysis on the impact of the inclination of the rock surface during the drilling process on the drilling efficiency and excavation capability of pneumatic impactors. Based on the dynamic theory of impact drilling and finite element method (FEM), the constitutive model of HJC criterion and INVENTOR 3D mechanical structure design software, a 3D numerical analysis system of piston-bit head-rock during pneumatic impactor drilling is established by ANSYS LS-DYNA, a nonlinear dynamic analysis software.
View Article and Find Full Text PDFPneumatic conveying inkjet bioprinting for the processing of living cells.
Biofabrication
January 2025
Research Group Anatomy, School for Medicine and Health Science, Carl von Ossietzky Universität Oldenburg, Carl von Ossietzky Str.9-11, Oldenburg, 26129, GERMANY.
Inkjet printing techniques are often used for bioprinting purposes because of their excellent printing characteristics, such as high cell viability and low apoptotic rate, contactless modus operandi, commercial availability, and low cost. However, they face some disadvantages, such as the use of bioinks of low viscosity, cell damage due to shear stress caused by drop ejection and jetting velocity, as well as a narrow range of available bioinks that still challenge the inkjet printing technology. New technological solutions are required to overcome these obstacles.
View Article and Find Full Text PDFModel-based design of a pneumatic actuator for a dynamically reconfigurable socket for transtibial amputees.
Front Bioeng Biotechnol
December 2024
Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand.
In this work, a cost-effective, scalable pneumatic silicone actuator array is introduced, designed to dynamically conform to the user's skin and thereby alleviate localised pressure within a prosthetic socket. The appropriate constitutive models for developing a finite element representation of these actuators are systematically identified, parametrised, and validated. Employing this computational framework, the surface deformation fields induced by 270 variations in soft actuator array design parameters under realistic load conditions are examined, achieving predictive accuracies within 70 µm.
View Article and Find Full Text PDFDevelopment and feasibility testing of a new device for home-based leg heat therapy in patients with lower extremity peripheral artery disease.
J Vasc Surg Cases Innov Tech
February 2025
Department of Health and Kinesiology, Purdue University, West Lafayette, IN.
Article Synopsis
- Individuals with symptomatic lower extremity peripheral artery disease (PAD) experience significant leg pain and reduced quality of life, with limited treatment options currently available.
- Emerging research shows that regular heat therapy (HT) might enhance cardiovascular and physical function in PAD patients, but practical, unsupervised HT methods for the elderly are lacking.
- A new portable leg HT system was developed for elderly patients, featuring safety mechanisms and tested for 12 weeks with positive results in terms of usability, safety, and improved clinical outcomes, including increased leg temperature and reduced blood pressure.
Outcome of Percutaneous Nephrolithotomy by Using Pneumatic Lithotripsy Alone and In Combination with Ultrasonic Lithotripsy.
Mymensingh Med J
January 2025
Dr Md Saidur Rahaman, Registrar, Department of Urology, Mymensingh Medical College Hospital (MMCH), Mymensingh, Bangladesh; E-mail:
Percutaneous nephrolithotomy (PCNL) is the gold standard treatment for large kidney stones. Recent advancements in endoscopic technology and operative techniques have significantly increased the success rate of PCNL while reducing associated complications and morbidity. A key development contributing to this progress is the introduction of various new lithotripter techniques, which facilitate rapid stone fragmentation and clearance.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!