Sleeve attaches directly around the heart
Harvard University and Boston Children’s Hospital researchers have developed a customizable soft robot that fits around a heart and helps it beat, potentially opening new treatment options for people suffering from heart failure.
The soft robotic sleeve twists and compresses in synch with a beating heart, augmenting cardiovascular functions weakened by heart failure. Unlike currently available devices that assist heart function, Harvard’s soft robotic sleeve does not directly contact blood. This reduces the risk of clotting and eliminates the need for a patient to take potentially dangerous blood thinner medications. The device may one day be able to bridge a patient to transplant or to aid in cardiac rehabilitation and recovery.
“This research demonstrates that the growing field of soft robotics can be applied to clinical needs and potentially reduce the burden of heart disease and improve the quality of life for patients,” said Ellen T. Roche, the paper’s first author and former PhD student at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) and The Wyss Institute of Biologically Inspired Engineering at Harvard University. Roche is currently a postdoctoral fellow at the National University of Ireland Galway.
“This work represents an exciting proof of concept result for this soft robot, demonstrating that it can safely interact with soft tissue and lead to improvements in cardiac function. We envision many other future applications where such devices can delivery mechanotherapy both inside and outside of the body,” said Conor Walsh, senior author of the paper and the John L. Loeb Associate Professor of Engineering and Applied Sciences at SEAS and Core Faculty Member at the Wyss Institute.
Heart failure affects 41 million people worldwide. Today, some of the options to treat it are mechanical pumps called ventricular assist devices (VADs), which pump blood from the ventricles into the aorta, and heart transplant. While VADs are continuously improving, patients are still at high risk for blood clots and stroke.
To create an entirely new device that doesn’t come into contact with blood, Harvard researchers took inspiration from the heart itself. The thin silicone sleeve uses soft pneumatic actuators placed around the heart to mimic the outer muscle layers of the mammalian heart. The actuators twist and compress the sleeve in a similar motion to the beating heart.
The device is tethered to an external pump, which uses air to power the soft actuators.
The sleeve can be customized for each patient, said Roche. If a patient has more weakness on the left side of the heart, for example, the actuators can be tuned to give more assistance on that side. The pressure of the actuators can also increase or decrease over time, as the patient’s condition evolves.
The sleeve is attached to the heart using a combination of a suction device, sutures and a gel interface to help with friction between the device and the heart.
The SEAS and Wyss engineers worked with surgeons at Boston Children’s Hospital to develop the device and determine the best ways to implant the device and test it on animal models.
“The cardiac field had turned away from idea of developing heart compression instead of blood-pumping VADs due to technological limitations, but now with advancements in soft robotics it’s time to turn back,” said Frank Pigula, a cardiothoracic surgeon and co-corresponding author on the study, who was formerly clinical director of pediatric cardiac surgery at Boston Children’s Hospital and is now a faculty member at University of Louisville and division chief of pediatric cardiac surgery at Norton Children’s Hospital. “Most people with heart failure do still have some function left; one day the robotic sleeve may help their heart work well enough that their quality of life can be restored.”
More research needs to be done before the sleeve can be implanted in humans but the research is an important first step towards an implantable soft robot that can augment organ function.
Harvard’s Office of Technology Development has filed a patent application and is actively pursuing commercialization opportunities.
“This research is really significant at the moment because more and more people are surviving heart attacks and ending up with heart failure,” said Roche. “Soft robotic devices are ideally suited to interact with soft tissue and give assistance that can help with augmentation of function, and potentially even healing and recovery.”
Learn more: Soft robot helps the heart beat
Receive an email update when we add a new SOFT ROBOTS article.
The Latest on: Customizable soft robot
via Google News
The Latest on: Customizable soft robot
- New Study: 64% of People Trust a Robot More Than Their Manageron October 15, 2019 at 12:18 pm
Workers want a simplified experience with AI at work, asking for a better user interface (34 percent), best practice training (30 percent) and an experience that is personalized to their ... focus on ...
- How AI is changing the relationship between people and technology at work?on October 15, 2019 at 7:59 am
Based on the findings, managers will remain relevant in the future if they focus on being human and using their soft skills, while leaving the technical skills and routine tasks to robots.” AI is ...
- Evco Plastics heads for K 2019 amid bustling business outlookon October 15, 2019 at 1:19 am
Evco asks the “soft” questions of applicants, such as what they want in life, their goals and ambitions. “We’ll pay for knowledge, for them to go to school. After all, someone has to tell the robots ...
- Inside NASA's plan to use Martian dirt to build houses on Marson October 14, 2019 at 9:10 am
Cleanliness happens when you outsource the dirty work to a robot. Montes and his colleagues at architecture firm AI SpaceFactory ... After spending the better part of 30 hours watching their ...
- Robotic Surgery extends its wings to Joint Replacementon October 11, 2019 at 3:29 am
Mumbai/Chennai: Indian hospitals using surgical robots for performing complex soft tissue surgical procedures are extending their wings by using this superior technology for joint replacement with the ...
- Here’s the Scoop on Australia’s First Robotic Ice-Creameryon October 6, 2019 at 9:19 pm
Tony wears a tiny custom bowtie designed by Jacqui Sale – a look inspired by staff ... different scooping motions depending on the level of ice-cream in the container. “This isn’t a robot simply ...
- 55 Best Unicorn Gifts: Your Ultimate Liston October 5, 2019 at 2:44 pm
This fun Build-A-Bot Unicorn Kit allows kids to easily make, customize and play with their very own unicorn robot. There are over 20 pieces in total that snap together ... this is their perfect gift!
- Traptic uses 3D vision and robotic arms to harvest ripe strawberrieson October 2, 2019 at 1:19 pm
Traptic, one of the startups competing in this year’s Disrupt Battlefield, however, is tackling the issue head on with a purpose-built robot. Comprising an off-the-shelf robotic arm and custom gripper ...
- Soft Robotics Introduces First Customizable Gripper System Designed for Universal Robotson August 28, 2019 at 5:00 pm
Soft Robotics introduces the Soft Robotics Development Kit — UR+ (SRDK-UR+), the first plug-and-play Soft Robotics customizable gripper system designed specifically for Universal Robots. The SRDK-UR+ ...
via Bing News