The heart’s motion is so powerful that it can recharge devices that save our lives, according to new research from Dartmouth College.
Using a dime-sized invention developed by engineers at the Thayer School of Engineering at Dartmouth, the kinetic energy of the heart can be converted into electricity to power a wide-range of implantable devices, according to the study funded by the National Institutes of Health.
Millions of people rely on pacemakers, defibrillators and other live-saving implantable devices powered by batteries that need to be replaced every five to 10 years. Those replacements require surgery which can be costly and create the possibility of complications and infections.
“We’re trying to solve the ultimate problem for any implantable biomedical device,” says Dartmouth engineering professor John X.J. Zhang, a lead researcher on the study his team completed alongside clinicians at UT Health San Antonio. “How do you create an effective energy source so the device will do its job during the entire life span of the patient, without the need for surgery to replace the battery?”
“Of equal importance is that the device not interfere with the body’s function,” adds Dartmouth research associate Lin Dong, first author on the paper. “We knew it had to be biocompatible, lightweight, flexible, and low profile, so it not only fits into the current pacemaker structure but is also scalable for future multi-functionality.”
The team’s work proposes modifying pacemakers to harness the kinetic energy of the lead wire that’s attached to the heart, converting it into electricity to continually charge the batteries. The added material is a type of thin polymer piezoelectric film called “PVDF” and, when designed with porous structures — either an array of small buckle beams or a flexible cantilever — it can convert even small mechanical motion to electricity. An added benefit: the same modules could potentially be used as sensors to enable data collection for real-time monitoring of patients.
The results of the three-year study, completed by Dartmouth’s engineering researchers along with clinicians at UT Health San Antonio, were just published in the cover story for Advanced Materials Technologies.
The two remaining years of NIH funding plus time to finish the pre-clinical process and obtain regulatory approval puts a self-charging pacemaker approximately five years out from commercialization, according to Zhang.
“We’ve completed the first round of animal studies with great results which will be published soon,” says Zhang. “There is already a lot of expressed interest from the major medical technology companies, and Andrew Closson, one of the study’s authors working with Lin Dong and an engineering PhD Innovation Program student at Dartmouth, is learning the business and technology transfer skills to be a cohort in moving forward with the entrepreneurial phase of this effort.”
Other key collaborators on the study include Dartmouth engineering professor Zi Chen, an expert on thin structure mechanics, and Dr. Marc Feldman, professor and clinical cardiologist at UT Health San Antonio.
The Latest on: Cardiac energy harvesting device
via Google News
The Latest on: Cardiac energy harvesting device
- FDA does not test most devices implanted in humans, and one woman is paying for it on February 7, 2019 at 1:48 am
Some have experienced heart ... a device that will be significantly changed or modified to the extent that its safety or effectiveness could be affected. Such change or modification could relate to th... […]
- Engineers use the heart’s energy to self-charge a bio-implant device on February 5, 2019 at 3:56 pm
explained in a news article about the device, “There is already a lot of expressed interest from the major medical technology companies…[and we are]…moving forward with the entrepreneurial phase of th... […]
- Cardiac energy harvesting device can recharge implantable devices on February 4, 2019 at 11:14 am
Engineers from Dartmouth College invented a cardiac energy harvesting device that can recharge implantable devices. Credit: Patricio R. Sarzosa, Thayer School of Engineering According to a recent stud... […]
- Engineers harvest heart's energy to power life-saving devices on February 4, 2019 at 4:34 am
(Nanowerk News) The heart's motion is so powerful that it can recharge devices that save our lives ... were just published in the cover story for Advanced Materials Technologies ("Energy Harvesting: F... […]
- SOITEC : Soitec SOI wafers at the heart of new Renesas SOTBTM Energy Harvesting Chipset on November 14, 2018 at 8:54 am
For consumer electronics developers mounting chips, achieving maintenance-free devices by energy harvesting capabilities within these sensor nodes is becoming increasingly critical, especially in wear... […]
- SOITEC : Soitec SOI wafers at the heart of new Renesas SOTBTM Energy Harvesting Chipset on November 13, 2018 at 4:00 pm
Soitec SOI wafers at the heart of new Renesas SOTB TM Energy Harvesting Chipset Soitec innovative substrates open up a self-powered future for IoT devices Bernin (Grenoble), November 14, 2018 - Soitec ... […]
- Paperthin device produces electricity from the slowest human motions on August 15, 2017 at 2:59 pm
Taped across a student volunteer’s elbow, an energy-harvesting device made of 2-D black phosphorus generates ... frequencies as low as 0.01 Hz—one-hundredth the rate of a beating heart. That opens up ... […]
- Energy-harvesting technologies find a home in IoT on May 15, 2017 at 9:03 am
Tego uses that power -- as little as 4 milliwatts -- to power the processor that is the heart of its RFID chip ... Like many such harvesting devices, they also store energy for later use. Its current ... […]
- Battery-free implantable medical device draws energy directly from human body on May 10, 2017 at 2:55 pm
A paper about their design was published this week in the journal Advanced Energy Materials. Pacemakers — which help regulate abnormal heart rhythms — and other implantable devices have saved countles... […]
- Three Technologies for Harvesting Ambient Energy on March 20, 2015 at 12:03 pm
Photo: University of Illinois College of Engineering Pulse Powered: A piezoelectric harvester is shown attached to the surface of a bovine heart ... wearable devices were a strong driver for energy-ha... […]
via Bing News