Houston innovator makes major headway on his portable stroke rehab device

research milestone

A unique innovation from the University of Houston has the potential to help stroke victims recover mobility. Photo courtesy of UH

A University of Houston professor has taking a huge step in advancing his game-changing stroke recovery tech.

Jose Luis Contreras-Vidal, the director of the UH BRAIN Center, recently published his work on a noninvasive brain-machine in a summer issue of the journal Sensors. InnovationMap first reported on Contreras-Vidal's technology in 2022, when it was being tested.

Contreras-Vidal's device uses a wireless, mobile dry-electrode headset placed on the scalp to convert electroencephalography (EEG) recordings (or measurements of electrical activity in different parts of the brain) to interface with a closed-loop brain–computer (BCI) and communicate with exoskeleton devices. Together, the technology triggers robotic movement based on the wearer's brain activity.

The technology has potential to boost cortical plasticity after a stroke, which can improve motor skills recovery.

According to a statement from UH, a patent is pending on Contreras-Vidal's BCI algorithm and the self-positioning dry electrode bracket used on the scalp. The technology has also now been validated and tested at the University of Houston.

Contreras-Vidal says the technology makes stroke recovery easier for the user and even possible at home.

“Most commercial EEG-based BCI systems are tethered to immobile processing hardware or require complex programming or set-up, making them difficult to deploy outside of the clinic or laboratory without technical assistance or extensive training," he says in a statement. "A portable and wireless BCI system is highly preferred so it can be used outside lab in clinical and non-clinical mobile applications at home, work, or play.”

Additionally, the technology uses off-the-shelf components and is adjustable to fit about 90 percent of the population, according to UH.

"Current commercial EEG amplifiers and BCI headsets are prohibitively expensive, lack interoperability, or fail to provide a high signal quality or closed-loop operation, which are vital for BCI applications,” Contreras-Vidal adds.

The development of this technology was originally funded in part by an $813,999 grant from the National Science Foundation’s Division of Translational Impacts. UH reports that about 795,000 people in the United States suffer from a stroke annually.

Other leaders in Houston’s medical industry have tapped into innovative ways to treat and rehabilitate stroke patients in recent years. Baylor St. Luke's Hospital began using AI to reduce the time it takes to treat patients who've suffered from a stroke in 2021.

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Stroke patients have a new hope for arm rehabilitation thanks to a team from UH. Photo courtesy of UH

Robotic device created at the University of Houston helps stroke patients to rehabilitate

next-gen recovery

Almost 800,000 people in the United States suffer from a stroke annually — and the affliction affects each patient differently. One University of Houston researcher has created a device that greatly improves the lives of patients whose stroke affected motor skills.

UH engineering professor Jose Luis Contreras-Vidal developed a next-generation robotic arm that can be controlled by the user's brainwaves. The portable device uses a brain-computer interface (BCI) developed by Contreras-Vidal. Stroke patient Oswald Reedus, 66, is the first person to use a device of this kind.

Reedus lost the use of his left arm following a stroke that also caused aphasia, or difficulty speaking. While he's been able to recover his ability to speak clearly, the new exoskeleton will help rehabilitate his arm.

When strapped into the noninvasive device, the user's brain activity is translated into motor commands to power upper-limb robotics. As patients like Reedus use the device, more data is collected to improve the experience.

“If I can pass along anything to help a stroke person’s life, I will do it. For me it’s my purpose in life now,” says Reedus in a news release from UH. His mother and younger brother both died of strokes, and Reedus is set on helping the device that can help other stroke patients recover.

Contreras-Vidal, a Hugh Roy and Lillie Cranz Cullen distinguished professor, has led his device from ideation to in-home use, like with Reedus, as well as clinical trials at TIRR Memorial Hermann. The project is funded in part from an $813,999 grant from the National Science Foundation’s newly created Division of Translational Impacts.

"Our project addresses a pressing need for accessible, safe, and effective stroke rehabilitation devices for in-clinic and at-home use for sustainable long-term therapy, a global market size expected to currently be $31 billion," Contreras-Vidal says in the release. "Unfortunately, current devices fail to engage the patients, are hard to match to their needs and capabilities, are costly to use and maintain, or are limited to clinical settings."

Dr. Gerard E. Francisco, chief medical officer and director of the Neuro Recovery Research Center at TIRR Memorial Hermann, is leading the clinical trials for the device. He's also chair and professor in the Department of Physical Medicine and Rehabilitation at McGovern Medical School at UTHealth Houston. He explains that TIRR's partnership with engineering schools such as the Cullen College of Engineering at UH and others around the nation is strategic.

“This is truly exciting because what we know now is there are so many ways we can induce neuroplasticity or how we can boost recovery,” says Francisco in the release. “That collaboration is going to give birth to many of these groundbreaking technologies and innovations we can offer our patients.”

Both parts of the device — a part that attaches to the patient's head and a part affixed to their arm — are noninvasive. Photo courtesy of UH

Baylor St. Luke's Hospital is using a new Bay Area technology to provide treatment to stroke patients. Photo courtesy Baylor St. Luke's

Houston hospital taps artificial intelligence to boost stroke treatment

health tech

For neurologists and neurocritical care providers like Dr. Chethan Rao, medical director of Neuroscience ICU at Baylor St. Luke's Hospital, time is incredibly important when it comes to brain-related recoveries.

"For every minute that you don't treat a patient with a stroke, 2 million nerve cells die. In the normal aging process, you lose about 35,000 cells a year or so," Rao says. "In other words, you age about 10 years every minute you don't get a treatment for stroke."

This is why his team is using new technologies, softwares, and innovation to drastically reduce the time it takes to treat patients who've suffered from a stroke starting from the moment they enter through the doors of their hospital.

One of the latest advancements at Baylor St. Luke's is the adoption of the San Francisco-based artificial intelligence app called Viz.ai across its stroke care teams.

The app received FDA approval in February 2020 and uses deep learning algorithms to analyze CAT scans for suspected large vessel occlusion (LVO) strokes. Baylor purchased the software about a year ago and is the first Houston-area hospital to use artificial intelligence for this type of treatment.

Viz.ai instantly allows doctors to determine salvageable and unsalvageable brain tissue, creating what Dr. Rao describes as a "map" for any potential procedures. Determining the viability of this type of treatment traditionally would take about 15 to 20 minutes, according to Rao.

"That's the reason artificial intelligence and automated technology has become extremely important. Because the more you've reduced the time it's required to make decisions and to provide treatments for stroke, that benefit is humungous for the patient," he says.

Rao says that his team uses the software about every day and has treated roughly 140 stroke patients with guidance from the tool.

Next the hospital aims to connect Viz.ai with additional automated systems it has adopted to speed up processes for stroke patients and manage their care, including TigerConnect for internal HIPAA-approved messaging and Decisio, a Houston-based product that captures key time stamps.

And Rao adds that the hospital is researching ways to extend the use of Viz.ai for select patients—to salvage more brain matter and analyze additional neurological events.

"More exciting things will be coming out of it," he says. "We're also working on helping it analyze aneurysms, not just blockages. Can we locate the bleeds, so that we can create different alert systems and then create different treatment pathways immediately?"

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World's largest student startup competition names teams for 2025 Houston event

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The Rice Alliance for Technology and Entrepreneurship has announced the 42 student-led teams worldwide that will compete in the 25th annual Rice Business Plan Competition this spring.

The highly competitive event, known as one of the world’s largest and richest intercollegiate student startup challenges, will take place April 10–12 at Houston's The Ion. Teams in this year's competition represent 34 universities from four countries, including one team from Rice.

Graduate student-led teams from colleges or universities around the world will present their plans before more than 300 angel, venture capital, and corporate investors to compete for more than $1 million in prizes. Last year, top teams were awarded $1.5 million in investment and cash prizes.

The 2025 invitees include:

  • 3rd-i, University of Miami
  • AG3 Labs, Michigan State University
  • Arcticedge Technologies, University of Waterloo
  • Ark Health, University of Chicago
  • Automatic AI, University of Mississippi and University of New Orleans
  • Bobica Bars, Rowan University
  • Carbon Salary, Washington University in St. Louis
  • Carmine Minerals, California State University, San Bernardino
  • Celal-Mex, Monterrey Institute of Technology and Higher Education
  • CELLECT Laboratories, University of Waterloo
  • ECHO Solutions, University of Houston
  • EDUrain, University of Missouri-St. Louis
  • Eutrobac, University of California, Santa Cruz
  • FarmSmart.ai, Louisiana State University
  • Fetal Therapy Technologies, Johns Hopkins University
  • GreenLIB Materials, University of Ottawa
  • Humimic Biosystems, University of Arkansas
  • HydroHaul, Harvard University
  • Intero Biosystems, University of Michigan
  • Interplay, University of Missouri-Kansas City
  • MabLab, Harvard University
  • Microvitality, Tufts University
  • Mito Robotics, Carnegie Mellon University
  • Motmot, Michigan State University
  • Mud Rat, University of Connecticut
  • Nanoborne, University of Texas at Austin
  • NerView Surgical, McMaster University
  • NeuroFore, Washington University in St. Louis
  • Novus, Stanford University
  • OAQ, University of Toronto
  • Parthian Baattery Solutions, Columbia University
  • Pattern Materials, Rice University
  • Photon Queue, University of Illinois, Urbana-Champaign
  • re.solution, RWTH Aachen University
  • Rise Media, Yale University
  • Rivulet, University of Cambridge and Dartmouth College
  • Sabana, Carnegie Mellon University
  • SearchOwl, Case Western Reserve University
  • Six Carbons, Indiana University
  • Songscription, Stanford University
  • Watermarked.ai, University of Illinois, Urbana-Champaign
  • Xatoms, University of Toronto

This year's group joins more than 868 RBPC alums that have raised more than $6.1 billion in capital with 59 successful exits, according to the Rice Alliance.

Last year, Harvard's MesaQuantum, which was developing accurate and precise chip-scale clocks, took home the biggest sum of $335,000. While not named as a finalist, the team secured the most funding across a few prizes.

Protein Pints, a high-protein, low-sugar ice cream product from Michigan State University, won first place and the $150,000 GOOSE Capital Investment Grand Prize, as well as other prizes, bringing its total to $251,000.

Tesla recalling more than 375,000 vehicles due to power steering issue

Tesla Talk

Tesla is recalling more than 375,000 vehicles due to a power steering issue.

The recall is for certain 2023 Model 3 and Model Y vehicles operating software prior to 2023.38.4, according to the National Highway Traffic Safety Administration.

The printed circuit board for the electronic power steering assist may become overstressed, causing a loss of power steering assist when the vehicle reaches a stop and then accelerates again, the agency said.

The loss of power could required more effort to control the car by drivers, particularly at low speeds, increasing the risk of a crash.

Tesla isn't aware of any crashes, injuries, or deaths related to the condition.

The electric vehicle maker headed by Elon Musk has released a free software update to address the issue.

Letters are expected to be sent to vehicle owners on March 25. Owners may contact Tesla customer service at 1-877-798-3752 or the NHTSA at 1-888-327-4236.

Houston space tech companies land $25 million from Texas commission

Out Of This World

Two Houston aerospace companies have collectively received $25 million in grants from the Texas Space Commission.

Starlab Space picked up a $15 million grant, and Intuitive Machines gained a $10 million grant, according to a Space Commission news release.

Starlab Space says the money will help it develop the Systems Integration Lab in Webster, which will feature two components — the main lab and a software verification facility. The integration lab will aid creation of Starlab’s commercial space station.

“To ensure the success of our future space missions, we are starting with state-of-the-art testing facilities that will include the closest approximation to the flight environment as possible and allow us to verify requirements and validate the design of the Starlab space station,” Starlab CEO Tim Kopra said in a news release.

Starlab’s grant comes on top of a $217.5 million award from NASA to help eventually transition activity from the soon-to-be-retired International Space Station to new commercial destinations.

Intuitive Machines is a space exploration, infrastructure and services company. Among its projects are a lunar lander designed to land on the moon and a lunar rover designed for astronauts to travel on the moon’s surface.

The grants come from the Space Commission’s Space Exploration and Aeronautics Research Fund, which recently awarded $47.7 million to Texas companies.

Other recipients were:

  • Cedar Park-based Firefly Aerospace, which received $8.2 million
  • Brownsville-based Space Exploration Technologies (SpaceX), which received $7.5 million
  • Van Horn-based Blue Origin, which received $7 million

Gwen Griffin, chair of the commission, says the grants “will support Texas companies as we grow commercial, military, and civil aerospace activity across the state.”

State lawmakers established the commission in 2023, along with the Texas Aerospace Research & Space Economy Consortium, to bolster the state’s space industry.

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