In the last few years, mechanically assistive exosuits, long depicted in works of popular science fiction and film, have finally started to see commercial deployment, according to Aaron Young, professor in the George W. Woodruff School of Mechanical Engineering at Georgia Tech. Most of these exosuits have a so-called passive design, assisting the wearer with unpowered elements like springs. 

Active exosuits that incorporate electronics and powered motors are yet to be broadly applied. They tend to be big and heavy, and rely on rigid exoskeletons to transfer weight from body to ground. Exoskeletons add a great deal of stiffness, as well, Young said. Putting on most active exosuits is a little like becoming one with a forklift, restricting a wearer to lifting weights in a vertical plane.

For all these reasons, Young’s Asymmetric Back eXosuit (ABX) described in the October 5 issue of IEEE Transactions on Robotics is highly non-standard. There’s no exoskeleton, no rigid structure, nothing that makes contact with the floor. If the wearer is just standing there, it does nothing except for adding 14 pounds to their legs. But if they raise their body from a leaning over position, it makes a somewhat frantic noise: that is the sound of the ABX helping them rotate their torso, helping them twist. 

Although most active exosuits support vertical lifts, rotating and twisting movements are also ubiquitous, especially in certain fields of manual labor like garbage collection and baggage handling. In many cases, these motions can be awkward and strenuous, leading to work-related injuries as well as back pain, according to Young. Back pain, in turn, is directly correlated with the strength of compressive forces and shear forces that are applied to the spine.

In designing their exosuit, the researchers sought a way to reduce these loads on the spinal joints. Putting it on looks a little like donning a futuristic backpack. Two motors are first strapped onto the back of each upper thigh. These motors are then connected to the back of the opposite shoulders, each with their own cable, making for two cables that diagonally overlap. The exosuit provides assistance by applying tension to the cables when it detects a wearer rise from a bending posture.

“It's definitely a different sensation than a sort of standard exoskeleton. It's not your standard design,” said Young. 

Because the diagonal cables have a component of motion that is horizontal, they exert a pull on the torso that can aid in twisting it from side to side. In tests, the researchers showed that when a wearer of the ABX swung a weight from the ground to one side, the exosuit reduced their back muscle activations by an average of 16%, as measured by electromyography (EMG) sensors. The exosuit also provided a 37% reduction in back muscle exertion when a wearer lifted weights symmetrically, straight off the ground – an assistance level comparable to more rigid designs. 

“People definitely felt like the technology is assisting them, which is great. And we did see the concurrent EMG reduction,” said Young. “I think it’s a great first step.”

In a sense, wearing the exosuit is almost like strapping two additional muscles onto the body – unconventional muscles, which run directly from back to leg. Interestingly, it is the positioning of these muscles rather than their brute strength that makes them functional, said Young.

The motors pull the cables with much less power than the muscles in the body. However, the cables are positioned much further away from the joints. Through this positioning, the cables obtain greater leverage and mechanical advantage, allowing the wearer to reduce their overall muscular output and hence the load that they place on their spine. (Spinal loading was not directly measured in the study.)

Aside from its overall performance, it is the flexible, asymmetric nature of the suit that really makes it unique, Young said. There are currently no other active exosuits that provide assistance for twisting and rotating through a comparable range of motion. While other exosuits also use cables, none have arranged them along diagonal lines.

Young is currently seeking collaborations with industry partners to further develop the exosuit. In future work, he sees its control system as a point to improve. Currently, when a person raises their torso from a lowered position, the cables simply pull with constant tension. But it should be possible to make the system detect different actions of the wearer and adjust its pull in response.

References

J. M. Li, D. D. Molinaro, A. S. King, A. Mazumdar and A. J. Young, "Design and Validation of a Cable-Driven Asymmetric Back Exosuit," in IEEE Transactions on Robotics, doi: 10.1109/TRO.2021.3112280.

About Georgia Tech

The Georgia Institute of Technology, or Georgia Tech, is a top 10 public research university developing leaders who advance technology and improve the human condition. The Institute offers business, computing, design, engineering, liberal arts, and sciences degrees. Its nearly 40,000 students representing 50 states and 149 countries, study at the main campus in Atlanta, at campuses in France and China, and through distance and online learning. As a leading technological university, Georgia Tech is an engine of economic development for Georgia, the Southeast, and the nation, conducting more than $1 billion in research annually for government, industry, and society.

By Jessica Barber

On April 21, 2021, biomedical engineering student Michael Pullen will serve as Georgia Tech’s representative in the fifth annual ACC InVenture Prize. Here he will compete with teams from twelve other universities for the chance to take home $30,000 in prizes.

Pullen’s invention first took root when he experienced the struggle of getting turf burn while playing football. While most players seek protection through regular compression sleeves, this often leads to decreased grip, more fumbles, and difficulty in maneuvering plays.

While working in sports medicine with the Atlanta Falcons, Pullen found a way to directly avoid this problem. LZRD Sleeve is a compressive sleeve that integrates gripping and moisture-wicking technology to deliver protection and control without sacrificing mobility nor comfort. 

Since then, LZRD Sleeve has secured its place in non-athletic arenas. A year ago, the world of sports halted due to COVID-19 shutdowns. It was then that Pullen sought other applications for his innovative sleeve — LZRD Sleeve has expanded its market to delivery drivers, gardeners, and maintenance workers seeking better performance and protection from harm. 

LZRD Sleeve is now being used by the largest U.S. courier service, and it has also been featured in Neil DeGrasse Tyson’s podcast StarTalk. On the same hand, Pullen has been in contact with a whopping five Fortune 500 companies. He ultimately hopes that InVenture Prize will show that with hard work, nothing is impossible.

 “Never in a million years would I have thought I would be representing Georgia Tech in the ACC InVenture Prize. Getting out of your comfort zone and trying new things is important, and by winning, I hope to set an example so that others might do the same,” Pullen stated.

Overall, winning the ACC InVenture Prize would allow LZRD Sleeve to expand even further through capital investments, uptakes in production, and coverage of associated legal fees.

The Georgia Tech community is encouraged to show Pullen its support through voting for the People’s Choice Award of $5,000. Voting is open from 8 a.m. on Monday, April 5 until midnight on Tuesday, April 6.

To vote, please text GATech to win the ACC InVenture Prize People’s Choice Award to 415-965-7445.

Winners will be announced on Wednesday, April 21 at 7 p.m. on PBS stations throughout the ACC region. 

More information about LZRD Sleeve can be found at lzrdtech.com.

The President's Undergraduate Research Award pays selected students $1500 to conduct undergraduate research. Applications for summer 2021 funding are due on February 26, 2021. 

Apply online at urop.gatech.edu

California, September 14, 2020: TiE Global hosted the 2nd edition of the TiE University Pitch Competition over the weekend. Cash prizes of close to $14,000 and almost $35,000 worth of in-kind prizes were given out to the 13 participants. TiE Atlanta’s Aerodyme Technologies from Georgia Institute of Technology came in first, winning $5000. TiE Silicon Valley’s team Ambii from San Jose State University bagged the second prize, winning $3000; while TiE Toronto’s LSK Technologies, a MedTech startup from the University of Toronto emerged as the third winner, winning $2000.

The winning team, Aerodyme Technologies has created a novel device that saves fuel costs for tractor-trailers by minimizing aerodynamic drag. Ambii, which came in second, provides an in-store music streaming platform for retail outlets, cafes and restaurants without the hassles of licensing. Third prize winner, LSK Technologies, created a diagnostic device for testing infectious diseases such as Covid19 at the point of need. 

Congratulating the winning team, Mahavir Pratap Sharma, Chairman of the TiE Global Board of Trustees said, "We are proud of these young talented entrepreneurs. Their growth story from pitches at their local TiE Chapters till the Global Finals has seen a massive expansion and iteration of thought and structure. This is a complete team effort put forward by the program co-chairs and charter member mentors who helped them grow their idea, giving them thorough guidance and mentoring the students over the last few months to compete on a global stage.”

Aerodyme Technologies participated in Georgia Tech’s CREATE-X Startup Launch program during summer 2019. During the startup accelerator program, the Aerodyme team was able to conduct customer discovery and receive mentorship and funding to take their product to market. The team also won 2nd place in the 12th annual InVenture Prize competition in March 2020. As part of the competition, Aerodyme received $10,000 in cash and patent filing assistance funded by the Georgia Tech Research Corporations. 

The second edition of the TiE University jointly organized by TiE Atlanta & TiE Hyderabad had 13 teams representing TiE chapters from India, Israel, UAE, Israel, USA, and Canada. These teams were previously the chapter winners and were then mentored to participate in the Global finals. After the Semi-final round on Saturday, seven teams were selected for the finals. Teams had a 10-minute pitch to an eminent Jury panel and a 5-minute live Q&A. 

Speaking at the Presentation Ceremony the TiE University program co-chairs Dr. Paul Lopez, SubbaRaju Pericherlaand Viiveck Verma, said they are looking to expand the program participation to 40 chapters and 400+ universities worldwide by 2022.

The worldwide jury panel for the finals, consisting of VCs and investors, included Bodhi Capital’s  Dharti Desai, Silicon Valley Bank’s Priya Rajan, Elevate Capital’s Kumar Sripadam, and Inflexor Ventures’ Venkat Vallabhaneni.  Semi-finals judges from across the globe included Craig Abbott, Rakesh Bhatia, Radhika Iyengar, Rama Devi Kanneganti, Doc Parghi, and Sonia Weymuller.

Apart from the top three winners, prizes were announced in various other categories. Silicon Valley’s Ambii and New Jersey’s Volant from New Jersey Institute of Technology jointly received a $1,500 Best Elevator Pitch award. Similarly, Teams Clean Electric from IIT/BHU, Varanasi representing TiE Mumbai, and Aruga Technologies from Carnegie Mellon University representing TiE Pittsburgh jointly received $1,500 Best Technology prize. Frinks, from IIT Hyderabad, representing TiE Hyderabad took the $500 People's Choice Award. Apart from this, all participating teams walked away with technology and service prizes worth $2500 per team.

The competition also hosted a keynote address by serial entrepreneur Thejo Kote. Thejo sold his connectivity startup, Automatic for $115 million to SiriusXm. He inspired the university startup teams and online audience alike by saying, “The biggest lesson I’ve learned along the way is to make sure you enjoy the journey (of building a startup) and it’s something that you learn from and grow from. Else it will be a lot more challenging.”

About TiE University:

TiE University program focuses on enhancing the learning objectives of university students globally through the creation and presentation of business pitches for startups and new small business ventures so that they aspire to become entrepreneurs. TiE University is looking to expand its reach to 40 chapters and 400+ universities worldwide. If you’re interested, reach out to the below-mentioned media contact. For more information, visit - https://tie.org/tie-university/

About TiE Global:

TiE Global, is a non-profit organization dedicated to fostering entrepreneurship around the World. TiE strives to inspire entrepreneurs through mentoring, networking, education, incubating and funding programs and activities. With nearly 2000+ events held each year, TiE brings together the entrepreneurial community to learn from local leaders, as well as each other. Few of the annual flagship events conducted by TiE are TYE, TiE Women, TiE University, TiECons and TGS. For more information, please visit our website at https://tie.org/

Media Contact:

Aparna Mishra Aparna@tie.org

By Jessica Barber

           On Wednesday, September 16, the Office of Undergraduate Education (OUE) hosted the kick-off session for the 13th Annual InVenture Prize. With over $35,000 in prizes, the competition is the holy grail of college entrepreneurship. Although the InVenture Prize officially starts in January 2021, students have already begun their preparations and idea declarations.

Unlike previous years, the kick-off was hosted online through Gatherly, a virtual event platform recently built by none other than Georgia Tech students. Despite this, attendees did not miss a beat. The kick-off marked a return to normalcy for the Georgia Tech innovation community from learning key information about the competition to directly speaking with past winners.

           After a welcome from interim Assistant Director of Student Innovation, Recha Reid, students were given an overview of some upcoming InVenture Prize events, including the ongoing Pitch Your Idea and IdeaBuzz sessions. Students were given an overview of OUE’s customer discovery, financial forecasting, marketing, and patent/copyright workshops. From there, the floor was turned over to Dr. Chris Reaves, executive director of the office for Academic Enrichment Programs.

           “At its core, the InVenture Prize is an invention startup competition, but we work together — even the teams work with each other — to help one another. We achieve more, grow more, and develop our companies better when we’re helping each other, and that’s a big part of what we’re doing,” Reaves explained.

           Later, students were given the opportunity to speak with representatives from Queues and Aerodyme, the respective first- and second-place winners of the 2020 InVenture Prize. Students learned firsthand what it takes to succeed on the InVenture Prize stage; the teams later offered advice on the invention process, their lessons learned, and the visibility benefits of participating in the competition.

           “If you’re on the edge right now about doing InVenture Prize, definitely do it. We actually had that same thought before we did it, and we’re just so glad that we did. It’s a lot of work, and you’re going to step outside of your comfort zone, but it’s so worth it”, said Joy Bullington of team Aerodyme Technologies. 

           Queues team member Sam Porta similarly had some words of encouragement for those looking into the 2021 InVenture Prize. 

           “The difference between an entrepreneur and someone who’s just engineering something is persistence, and the InVenture Prize is a great opportunity to test this. If you think you’ve come up with something great that has a lot of value, then, by all means, do it,” Porta emphasized.

           Towards the end of the session, students were invited to visit virtual “booths” dedicated to areas of health, retail, fintech, transportation, education tools, gaming, and networking.

           “InVenture is honestly one of the reasons I chose to come to Tech, and I’m just so excited to come into with something that I’m really confident about,” an attendee said.

           “The most interesting thing about tonight was hearing from the past winners and having them talk about their experiences. Definitely super excited to apply, and hopefully we do really well,” another stated.

           Registration for the 2021 InVenture Prize will remain open until January. Student innovators are invited to check out OUE’s information and development sessions to be held throughout the Fall semester. All dates and related topics can be found at innovation.gatech.edu and inventureprize.gatech.edu.

FIND OUT MORE ABOUT THE 2021 INVENTURE PRIZE BY CLICKING HERE

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