Thermocuff has several patents and expects FDA approval at the end of the year. Image via thermocuff.com

A great idea can strike anytime — and for Sam Sabbahi, his concept cooked up six years ago while defrosting a chicken for his son’s dinner.

Sabbahi, a physical therapist by trade, knew there had to be a better way to heat and cool common joint injuries — elevating the traditional way of using ice or heat packs.

“In the field, we were always getting people coming in trying to get us to purchase different medical devices and we wondered, ‘who knows what we need better than we do?’” he says. “A patient asked me ‘what a cold pack does’ and I was thinking in my head that a cold pack just cools the skin to three millimeters depth.”

Sabbahi then developed and invented a portable convection-based heating and cooling system device that could be used for joint injury rehabilitation – the device, dubbed Thermocuff, works much in the way that an air fryer circulates the air to get an even temperature.

“It just clicked for me like a light. You know what people say,” he says. “I just got the idea and thought ‘let’s just try this out and see if it would work.”

The device uses air that goes over top of the thermoelectric unit and cycles in a closed loop system. After some proof concept testing, Sabbahi determined that Thermocuff could cool a joint more than twice as quick as the traditional water circulating system that’s currently available on the market now.

The attached tablet connects through Bluetooth to the unit, which allows the patient to increase or decrease the temperature and adjust for heating or cooling.

“You're trying to get the range of motion back,” he says. “We are addressing pain and range of motion now – trying to reduce the swelling inside of a joint to help in function.”

Because the disposable cuff kind of looks like a Chinese finger trap, Sabbahi says it’s not something that you could just make a mold of and then mass produce.

Fast forward to today, Sabbahi and his team of eight have acquired four patents in the U.S., Canada, China and Japan and are waiting on Europe and Mexico.

The team is working toward FDA approval at the end of the year. Thermocuff also has received a grant from the U.S. military. The device is part of the Southwest Pediatric Medical Device Consortium and received grants for production and research from the Medical Technology Enterprise Consortium, which helps startups in the medical field source grants.

The team is targeting business to business, physical therapy clinics, universities, and sports training associations with the hope to move into the consumer market in the coming years.

“We all have ideas is the hardest part, is trying to figure out how to turn your idea into actual product,” he says. “It's fun, actually — kind of like a big puzzle. You know, you're trying to get all, find all the pieces and put them together.”

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3 Houston innovators who made headlines in May 2025

Innovators to Know

Editor's note: Houston innovators are making waves this month with revolutionary VC funding, big steps towards humanoid robotics, and software that is impacting the agriculture sector. Here are three Houston innovators to know right now.

Zach Ellis, founder and partner of South Loop Ventures

Zach Ellis. Photo via LinkedIn

Zach Ellis Jr., founder and general partner of South Loop Ventures, says the firm wants to address the "billion-dollar blind spot" of inequitable distribution of venture capital to underrepresented founders of color. The Houston-based firm recently closed its debut fund for more than $21 million. Learn more.

Ty Audronis, CEO and founder of Tempest Droneworx

Ty Audronis, CEO and founder of Tempest Droneworx

Ty Audronis, center. Photo via LinkedIn.

Ty Audronis and his company, Tempest Droneworx, made a splash at SXSW Interactive 2025, winning the Best Speed Pitch award at the annual festival. The company is known for it flagship product, Harbinger, a software solution that agnostically gathers data at virtually any scale and presents that data in easy-to-understand visualizations using a video game engine. Audronis says his company won based on its merits and the impact it’s making and will make on the world, beginning with agriculture. Learn more.

Nicolaus Radford, CEO of Persona AI

Nicolaus Radford, founder and CEO of Nauticus RoboticsNicolaus Radford. Image via LinkedIn

Houston-based Persona AI and CEO Nicolaus Radford continue to make steps toward deploying a rugged humanoid robot, and with that comes the expansion of its operations at Houston's Ion. Radford and company will establish a state-of-the-art development center in the prominent corner suite on the first floor of the building, with the expansion slated to begin in June. “We chose the Ion because it’s more than just a building — it’s a thriving innovation ecosystem,” Radford says. Learn more.

Houston university to launch artificial intelligence major, one of first in nation

BS in AI

Rice University announced this month that it plans to introduce a Bachelor of Science in AI in the fall 2025 semester.

The new degree program will be part of the university's department of computer science in the George R. Brown School of Engineering and Computing and is one of only a few like it in the country. It aims to focus on "responsible and interdisciplinary approaches to AI," according to a news release from the university.

“We are in a moment of rapid transformation driven by AI, and Rice is committed to preparing students not just to participate in that future but to shape it responsibly,” Amy Dittmar, the Howard R. Hughes Provost and executive vice president for academic affairs, said in the release. “This new major builds on our strengths in computing and education and is a vital part of our broader vision to lead in ethical AI and deliver real-world solutions across health, sustainability and resilient communities.”

John Greiner, an assistant teaching professor of computer science in Rice's online Master of Computer Science program, will serve as the new program's director. Vicente Ordóñez-Román, an associate professor of computer science, was also instrumental in developing and approving the new major.

Until now, Rice students could study AI through elective courses and an advanced degree. The new bachelor's degree program opens up deeper learning opportunities to undergrads by blending traditional engineering and math requirements with other courses on ethics and philosophy as they relate to AI.

“With the major, we’re really setting out a curriculum that makes sense as a whole,” Greiner said in the release. “We are not simply taking a collection of courses that have been created already and putting a new wrapper around them. We’re actually creating a brand new curriculum. Most of the required courses are brand new courses designed for this major.”

Students in the program will also benefit from resources through Rice’s growing AI ecosystem, like the Ken Kennedy Institute, which focuses on AI solutions and ethical AI. The university also opened its new AI-focused "innovation factory," Rice Nexus, earlier this year.

“We have been building expertise in artificial intelligence,” Ordóñez-Román added in the release. “There are people working here on natural language processing, information retrieval systems for machine learning, more theoretical machine learning, quantum machine learning. We have a lot of expertise in these areas, and I think we’re trying to leverage that strength we’re building.”