scholarly journals Design and Implementation of Folded QRS Detector for Implantable Cardiac Pacemaker

2021 ◽  
Author(s):  
Josly Priyatharsni J ◽  
Uma A
Keyword(s):  
Cardiac Pacemaker ◽  
Design And Implementation ◽  
Implantable Cardiac Pacemaker

Review of Cardiac Pacemaker Lead Designs for Computational Models in a VR Environment

2017 ◽  
Author(s):  
Bethany Tourek ◽  
Dan Orban ◽  
Lingyu Meng ◽  
Hakizumwami Birali Runesha ◽  
Dan Keefe ◽  
...  
Keyword(s):  
Computational Models ◽  
Cardiac Pacemaker ◽  
Model Complexity ◽  
Element Analysis ◽  
Parameterized Design ◽  
Pacemaker Leads ◽  
Computational Fluid Dynamics Cfd ◽  
The Right ◽  
Implantable Cardiac Pacemaker ◽  
Computational Resources

An implantable cardiac pacemaker is used to modify and treat irregular heartbeats [1] and invented in 1958 [2]. Devices have no fixation or fixed to the heart wall. No fixation leads lay in the bottom of heart cavities, while fixed leads have tines (passive) or a helix screw (active) to attach to the heart. Lead geometries and material properties vary between companies, with geometric sizing based primarily on the internal mechanics of the lead. Finite element analysis (FEA), computational fluid dynamics (CFD) and bench-top simulations are used to evaluate cardiac leads. These simulations analyze only one lead and struggle to compare and test variations in lead designs. Advanced computational resources can run many computer simulations of anatomical environments, however model complexity increases the time to run each simulation. To address this issue, we present a simplified parameterized design space for cardiac pacemaker leads in the right atrium. This information will be used to run multiple simulations of leads in blood flow, for visualization in a single virtual reality (VR) environment and allow the designer to iterate through many design variations (See Figure 1).

AN IMPLANTABLE CARDIAC PACEMAKER ALLOWING RATE CONTROL

The Lancet ◽  
1963 ◽  
Vol 281 (7283) ◽  
pp. 684-687 ◽  
Author(s):  
Harold Glass ◽  
Gavin Shaw ◽  
George Smith
Keyword(s):  
Rate Control ◽  
Cardiac Pacemaker ◽  
Implantable Cardiac Pacemaker

scholarly journals Recognition of malfunction of implantable cardiac pacemaker due to X-ray irradiation by medical radiological technologists

2009 ◽  
Vol 55 (4) ◽  
pp. 511-514
Author(s):  
TOHRU NISHIZAWA ◽  
ATSUSHI NISHIYAMA ◽  
KAZUO KEMPE ◽  
TAKASHI DAMBARA
Keyword(s):  
Cardiac Pacemaker ◽  
X Ray ◽  
Implantable Cardiac Pacemaker

Study on the Wireless Power Transmission Technology for the Implantable Cardiac Pacemaker

2014 ◽  
Vol 525 ◽  
pp. 276-281
Author(s):  
Yan Hong Li ◽  
Xiu Quan Liu
Keyword(s):  
Power Transmission ◽  
Cardiac Pacemaker ◽  
Mutual Inductance ◽  
The Self ◽  
Wireless Power ◽  
Ferrite Core ◽  
Radial Migration ◽  
Working Frequency ◽  
Coupling Performance ◽  
Implantable Cardiac Pacemaker

The working principle of a Wireless Power Transmission technology (WPT) system of the implantable cardiac pacemaker was introduced. Then, based on Ansoft Maxwell software, the three-dimensional finite element model of the WPT system was established. Finally the influence of some parameters, such as the gap and radial migration of the primary and secondary winding, ferrite core, working frequency on the self - inductance, mutual inductance, and the coupling performance were studied. The results show that with the gap or radial migration increasing, the self- inductance is almost same, but the mutual inductance and coupling coefficient decrease; the ferrite core may significantly enhance the inductance and coupling performance; the inductance and coupling coefficient has nothing to do with the working frequency.

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