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
Sekisui Diagnostics UK Ltd.

Download Mobile App




Ring-Shaped Pump Supports Weakened Hearts

By HospiMedica International staff writers
Posted on 12 Jul 2016
Print article
Image: The DEAP ring pump (Photo courtesy of the École Polytechnique Fédérale de Lausanne).
Image: The DEAP ring pump (Photo courtesy of the École Polytechnique Fédérale de Lausanne).
An innovative cardiac support system uses peristaltic motion to help the heart pump and transport blood.

Developed by researchers at Ecole Polytechnique Fédérale de Lausanne (EPFL; Switzerland), the miniature pump is made of three tiny rings placed around the aorta at the exact spot where it exits the left ventricle. The rings are made of a dielectric electro active polymer (DEAP) with special electrical properties. Each ring has two electrodes that are drawn together by an electrostatic force whenever the electric pulse, provided by magnetic induction, is activated.

Each of the three rings contracts in sequence, in a movement reminiscent of an earthworm. The series of contractions, called peristalsis, creates a wave that moves the blood inside the artery. The double action, both vertical and horizontal, occurs simultaneously and immediately, creating a back-and-forth movement that can be controlled in real time. And since the pump ring does not come into direct contact with the blood, it avoids problems of hemolysis and the subsequent need for regular blood transfusions to replenish the damaged red blood cells (RBCs).

“This method does not require us to enter the heart; this means it is significantly less invasive than other cardiac support systems, which work by implanting valves or screw pumps inside the ventricle,” said Yves Perriard, director of the EPFL Integrated Actuators Laboratory (LAI). “The absence of valves and other components used in current methods to provide cardiac support doesn’t just lessen the possibility of hemolysis. It also makes the insertion and removal of the device significantly easier for surgeons.

The DEAP peristaltic pump is currently in prototype stage. The researchers plan to improve the device’s performance before testing it on a liquid with similar fluidic properties to those of the blood, such as glycerol. The researchers are also in contact with the University Hospital of Bern (Switzerland), where clinical trials could be conducted.

Related Links:
Ecole Polytechnique Fédérale de Lausanne


Gold Member
SARS‑CoV‑2/Flu A/Flu B/RSV Sample-To-Answer Test
SARS‑CoV‑2/Flu A/Flu B/RSV Cartridge (CE-IVD)
Gold Member
Solid State Kv/Dose Multi-Sensor
AGMS-DM+
Silver Member
Compact 14-Day Uninterrupted Holter ECG
NR-314P
New
Syringe Pump
Spaceplus Perfusor

Print article

Channels

Surgical Techniques

view channel
Image: Concept of the wirelessly actuated undulating pump and its integration into an esophageal stent (Photo courtesy of Advanced Functional Materials/ doi.org/10.1002/adfm.202405865)

Wirelessly Activated Robotic Device Aids Digestion in Patients with Compromised Organs

The transport of fluids and solids is essential in the human body, driven by a wave-like movement in the lumen known as peristalsis. However, peristalsis can be disrupted in patients who have obstructions... Read more

Patient Care

view channel
Image: The portable, handheld BeamClean technology inactivates pathogens on commonly touched surfaces in seconds (Photo courtesy of Freestyle Partners)

First-Of-Its-Kind Portable Germicidal Light Technology Disinfects High-Touch Clinical Surfaces in Seconds

Reducing healthcare-acquired infections (HAIs) remains a pressing issue within global healthcare systems. In the United States alone, 1.7 million patients contract HAIs annually, leading to approximately... 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: POCT offers cost-effective, accessible, and immediate diagnostic solutions (Photo courtesy of Flinders University)

POCT for Infectious Diseases Delivers Laboratory Equivalent Pathology Results

On-site pathology tests for infectious diseases in rural and remote locations can achieve the same level of reliability and accuracy as those conducted in hospital laboratories, a recent study suggests.... Read more
Copyright © 2000-2024 Globetech Media. All rights reserved.