We use cookies to understand how you use our site and to improve your experience. This includes personalizing content and advertising. To learn more, click here. By continuing to use our site, you accept our use of cookies. Cookie Policy.

Features Partner Sites Information LinkXpress
Sign In
Advertise with Us

Download Mobile App




Novel Cardiac Pacemaker Needs No Battery

By HospiMedica International staff writers
Posted on 08 Jul 2014
Print article
Image: Cardiac pacemaker powered by a flexible piezoelectric energy harvester (Photo courtesy of KAIST).
Image: Cardiac pacemaker powered by a flexible piezoelectric energy harvester (Photo courtesy of KAIST).
A prototype self-powered cardiac pacemaker stimulated a living rat's heart using electrical energy converted from its body movements.

Developed by researchers at the Korea Advanced Institute of Science and Technology (KAIST; Daejeon, South Korea) and Yonsei University (Seoul, South Korea), the artificial cardiac pacemaker is powered semipermanently by a high-performance flexible piezoelectric nanogenerator based on a bulk magnesium niobate-lead titanate (PMN-PT) thin film single-crystal. Electrical energy is generated from the continuous bending and unbending of the flexible PMN-PT thin film harvesting plates.

The researchers succeeded in harvesting energy that reached up to 8.2 V and 0.22 mA by the bending and pushing motions of the crystal, which were high enough values to directly stimulate the rat's heart. According to the researchers, the technology could potentially facilitate the use of self-powered flexible energy harvesters, not only prolonging the lifetime of cardiac pacemakers but also for realizing real-time heart monitoring. The study was published online ahead of print on April 2014 in Advanced Materials.

“For clinical purposes, the current achievement will benefit the development of self-powered cardiac pacemakers as well as prevent heart attacks via the real-time diagnosis of heart arrhythmia,” said lead author Prof. Keon Jae Lee, PhD, of the department of materials science and engineering. “In addition, the flexible piezoelectric nanogenerator could also be utilized as an electrical source for various implantable medical devices.”

Repeated surgeries to replace pacemaker batteries have exposed elderly patients to health risks such as infections or severe bleeding during the procedures.

Related Links:

Korea Advanced Institute of Science and Technology
Yonsei University


Gold Member
12-Channel ECG
CM1200B
Gold Member
POC Blood Gas Analyzer
Stat Profile Prime Plus
Silver Member
Wireless Mobile ECG Recorder
NR-1207-3/NR-1207-E
New
Silver Member
Mobile X-Ray Barrier
Lead Acrylic Mobile X-Ray Barriers

Print article
Detecto

Channels

Surgical Techniques

view channel
Image: ROSA Shoulder is a groundbreaking robotic system for anatomic and reverse shoulder arthroplasty (Photo courtesy of Zimmer Biomet)

World's First Robotic Assistant for Shoulder Replacement Surgery Helps Perform Highly Complex Procedures

A key challenge in performing a shoulder replacement is accurate glenoid and humeral placement, which is a critical factor for post-operative function and long-term implant survival. Now, a groundbreaking... Read more

Patient Care

view channel
Image: The newly-launched solution can transform operating room scheduling and boost utilization rates (Photo courtesy of Fujitsu)

Surgical Capacity Optimization Solution Helps Hospitals Boost OR Utilization

An innovative solution has the capability to transform surgical capacity utilization by targeting the root cause of surgical block time inefficiencies. Fujitsu Limited’s (Tokyo, Japan) Surgical Capacity... Read more

Health IT

view channel
Image: First ever institution-specific model provides significant performance advantage over current population-derived models (Photo courtesy of Mount Sinai)

Machine Learning Model Improves Mortality Risk Prediction for Cardiac Surgery Patients

Machine learning algorithms have been deployed to create predictive models in various medical fields, with some demonstrating improved outcomes compared to their standard-of-care counterparts.... Read more

Point of Care

view channel
Image: The new eye-safe laser technology can diagnose traumatic brain injury (Photo courtesy of 123RF)

Novel Diagnostic Hand-Held Device Detects Known Biomarkers for Traumatic Brain Injury

The growing need for prompt and efficient diagnosis of traumatic brain injury (TBI), a major cause of mortality globally, has spurred the development of innovative diagnostic technologies.... Read more
Copyright © 2000-2024 Globetech Media. All rights reserved.