Thomas Vassiliades, CEO of BiVACOR, joins the Houston Innovators Podcast. Photo courtesy of BiVACOR

Heart disease is one of the most common causes of death in the United States — one in five deaths, according to the CDC. But there's not a long-term solutions for patients — even for those lucky enough to have a successful heart transplant. But a Houston-headquartered medical device company is working on one.

BiVACOR has created a technology that, theoretically, could completely replace a patient's heart and last them the rest of their lives.

"The design is critical," says Thomas Vassiliades, CEO of BiVACOR, on the Houston Innovators Podcast. He joined the organization last year after spending 20 years of a heart surgeon, then transitioning to medical device development over a decade ago.

Vassiliades explains the industry's challenges on the show, saying that there's no comprehensive, lasting replacement to the human heart on the market. While some treatments — like transplants and medical devices that partially replace the heart's capabilities — exist, nothing that completely replaces the heart lasts longer than 10 to 12 years.

"The BiVACOR system is based on magnetic levitation," Vassiliades says about the technology. "Our pump is just one moving impeller that sits in the middle of the housing where the blood is. Imagine an artificial heart — the container that has your blood — and the device spinning in the inside — basically a wheel spinning your blood to the rest of your body.

"The device is suspended by magnets — it's not touching anything," he continues. "So, theoretically, the device has no wear and can last as long as the patient can possibly live. That's new to the field."

Daniel Timms, BiVACOR's founder and CTO, knew there had to be a better, more permanent solution and has been working on the technology since he was a postdoctoral student at Queensland University of Technology in Australia. His work took him to Houston's Texas Heart Institute, the "center of the universe when it comes to blood pumps," says Vassiliades.

The company recently raised $18 million in funding to support its growing team and continued growth. BiVACOR is a Class 3 medical device — the most rigorously regulated type of device, so the funding raised will support the company as it continues to meet the FDA's requirements and proceeds into implantation and clinical trials.

While headquartered in Houston and has close ties to THI, most of BiVACOR's team works out of Huntington Beach, California, just 30 minutes away from its manufacturing partner — something that has been critical for the design phase. Other employees work in Europe and Australia, which has resulted in government grant funding. Each market the company works in has a strategic purpose — and Houston's role is testing.

"We're going to be training all our clinical sites in Houston, and we're going to continue to do ongoing testing," he says. "We're very comfortable with the design of the device, ... but there's always more. And we have a long-term plan to iterate on the device to make it even better."

Vassiliades shares more of the challenges he's facing as he commercializes BiVACOR's technology on the podcast. Listen to the interview below — or wherever you stream your podcasts — and subscribe for weekly episodes.


Houston-based Procyrion has closed a $30 million round — doubling its total funding to date. Getty Images

Houston medical device company closes $30 million round

Follow the money

A clinical-stage medical device company based in Houston has rounded up $30 million for its Series D funding. Procyrion Inc.'s round was lead by Bluebird Ventures — a new funding partner for the company.

Procyrion is developing a blood pump, called the Aortix™ system, that's optimized for patients with heart and kidney failure. Joining in on the round with Bluebird are return investors, including Fannin Partners, Scientific Health Development, the State of Texas, and an undisclosed strategic investor. This round has now more than doubled the company's total funding, bringing that figure now to $59 million.

"Of the more than 1 million patients per year in the U.S. admitted to the hospital with acute decompensated heart failure, 25 to 30 percent also have worsening renal function," says Eric S. Fain, president and CEO of the company, in a release. "These are typically the most difficult to treat patients with high mortality and rehospitalization rates."

The funds, Fain says, will go toward advancing the medical device, specifically enhancing the system's ability to decongest cardio renal patients in the company's pilot program.

"Today there is a major gap in effective therapies that are available to treat these critically ill patients, and as such, there is a significant opportunity to improve patient outcomes," Fain continues in the release. "The Aortix device is uniquely designed and positioned in the body to simultaneously decrease the workload of the heart and improve kidney function."

The Aortix device is a solution for patients who haven't seen success from medical therapy, but don't have the immediate need for a transplant or more drastic solution. The device is thinner than a pencil, the release says, and can be inserted in a matter of minutes in a cath-lab setting. The size and ease of application could be transformational for the large population of heart patients that would need it.

In addition to the funds, Jeff Bird, managing director of Bluebird Ventures, will join the company's board of directors.

"The Procyrion Aortix device provides an elegant solution for managing heart failure, a serious and difficult-to-treat problem," says Bird in the release. "We are excited to work with this experienced team as they begin clinical testing."


The device is thinner than a pencil and can be inserted in less than 10 minutes. Photo via procyrion.com

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West Coast innovation organization unveils new location in Houston suburb to boost Texas tech ecosystem

plugging in

Leading innovation platform Plug and Play announced the opening of its new flagship Houston-area location in Sugar Land, which is its fourth location in Texas.

Plug and Play has accelerated over 2,700 startups globally last year with corporate partners that include Dell Technologies, Daikin, Microsoft, LG Chem, Shell, and Mercedes. The company’s portfolio includes PayPal, Dropbox, LendingClub, and Course Hero, with 8 percent of the portfolio valued at over $100 million.

The deal, which facilitated by the Sugar Land Office of Economic Development and Tourism, will bring a new office for the organization to Sugar Land Town Square with leasing and hiring between December and January. The official launch is slated for the first quarter of 2025, and will feature 15 startups announced on Selection Day.

"By expanding to Sugar Land, we’re creating a space where startups can access resources, build partnerships, and scale rapidly,” VP Growth Strategy at Plug and Play Sherif Saadawi says in a news release. “This location will help fuel Texas' innovation ecosystem, providing entrepreneurs with the tools and networks they need to drive real-world impact and contribute to the state’s technological and economic growth."

Plug and Play plans to hire four full-time equivalent employees and accelerate two startup batches per year. The focus will be on “smart cities,” which include energy, health, transportation, and mobility sectors. One Sugar Land City representative will serve as a board member.

“We are excited to welcome Plug and Play to Sugar Land,” Mayor of Sugar Land Joe Zimmerma adds. “This investment will help us connect with corporate contacts and experts in startups and businesses that would take us many years to reach on our own. It allows us to create a presence, attract investments and jobs to the city, and hopefully become a base of operations for some of these high-growth companies.”

The organization originally entered the Houston market in 2019 and now has locations in Bryan/College Station, Frisco, and Cedar Park in Texas.

Uniquely Houston event to convene innovation experts across aerospace, energy, and medicine

guest column

Every year, Houston's legacy industries — energy, medicine, and aerospace — come together to share innovative ideas and collaborate on future opportunities.

For the eighteenth year in a row, the annual Pumps & Pipes event will showcase and explore convergence innovation and common technology themes across Houston’s three major industries. The hosting organization, also called Pumps & Pipes, was established in 2007 in Houston and is dedicated to fostering collaboration amongst the city's three major industries.

With NASA in its backyard, the world’s largest medical center, and a reputation as the “Energy Capital of the World,” Houston is uniquely positioned to lead in cross-industry convergence innovation and is reflected in the theme of this year’s event – Blueprint Houston: Converge and Innovate.

Here's what you can expect to explore at the event, which will take place this year on December 9 at TMC Helix Park. Tickets are available online.

The state of Texas’ aerospace investments

How are the recent strategic investments in aerospace by the State of Texas transforming the space economy and driving growth in adjacent industries? What is the case for cultivating a more dynamic and vibrant aerospace R&D environment?

These are the key questions explored in the opening session of Pumps & Pipes, moderated by David Alexander (Director, Rice Space Institute). Joining the discussion are distinguished leaders Norman Garza, Jr., Executive Director of the Texas Space Commission (TSC); as well as two members of the TSC board of directors: Sarah “Sassie” Duggelby, CEO/Co-Founder of Venus Aerospace; and Kathryn Lueders, GM at Starbase, SpaceX.

This panel will spotlight Texas’ critical role in shaping the future of aerospace, with a focus on its cross-sector impact, from space exploration to innovation in energy and health care. We’ll explore how the state’s investments are fueling research and development, creating economic opportunities, and fostering a more interconnected, high-tech ecosystem for the future.

Real-world applications of robotics and synthetic biology

Explore the groundbreaking intersection of syntheticbiology and robotics as they reshape industries from aerospace to energy to health care. Experts from academia and industry — Rob Ambrose of Texas A&M University, Shankar Nadarajah of ExxonMobil, Shalini Yadav of the Rice Synthetic Biology Institute, and Moji Karimi of Cemvita — will discuss the real-world applications and future possibilities of these two fields, including innovative uses of robotics and drones to monitor emissions from deep-sea oil rigs, and synthetic microbes that convert carbon dioxide into valuable chemical products.

Discover how synthetic biology and robotics are paving the way for a more sustainable, autonomous, efficient, and interconnected future.

The total artificial heart – a uniquely Houston story

Heart failure affects millions globally, yet only a small fraction of patients receive life-saving heart transplants. The Total Artificial Heart (TAH), developed by BiVACOR, offers a revolutionary solution for patients with severe heart failure who are ineligible for a transplant.

Luminary leader, Dr. Billy Cohn, will discuss the groundbreaking BiVACOR TAH, a device that fully replaces the function of the heart using a magnetically levitated rotary pump. This innovative approach is part of an FDA-approved first-in-human study, aiming to evaluate its use as a bridge-to-transplant for patients awaiting heart transplants.

Moderated by Dr. Alan Lumsden (Chair Dept. of CV Surgery at Houston Methodist Hospital), join Dr. Cohn as he shares insights, and the story-behind, this pioneering technology and its potential to reshape the future of heart failure treatment, offering new hope to thousands of patients in need.

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Stuart Corr is the director of Innovation Systems Engineering at Houston Methodist and executive director of Pumps & Pipes.

Houston schools shine on annual ranking of top institutions for 2025

best in class

Several Houston elementary and middle schools are at the top of the class when it comes to educating and preparing the next generation for a successful life and career, according to U.S. News & World Report's just-released list of 2025 Elementary and Middle Schools Rankings.

One such school – T.H. Rogers School in Houston ISD – is the No. 8 best middle school in Texas for 2025.

U.S. News ranked over 79,000 public schools on the state and district level using data from the U.S. Department of Education. Schools were analyzed based on their students' proficiencies in mathematics and reading/language arts on state assessments, and tie-breakers were decided based on student-teacher ratios.

Texas' best middle schools for 2025

Three Houston middle schools achieved spots among the top 10 best Texas middle schools for 2025, according to U.S. News.

T.H. Rogers School has a total enrollment of 1,063 students, with 87 percent of the student population scoring "at or above the proficient level" in mathematics, and 90 percent proficiency in reading. The school has a student-teacher ratio of 17:1, with 62 full-time teachers.

T.H. Rogers School also topped the district-wide list as the No. 1 best middle school in HISD.

Houston Gateway Academy - Coral Campus also ranked among the statewide top 10, coming in at No. 9 with a total enrollment of 914 students. U.S. News says 82 percent of HGA students are proficient in math, and 80 percent are proficient in reading.

"Houston Gateway Academy - Coral Campus did better in math and better in reading in this metric compared with students across the state," U.S. News said in the school's profile. "In Texas, 51 percent of students tested at or above the proficient level for reading, and 41 percent tested at or above that level for math."

Right behind HGA to round out the top 10 best Texas middle schools is Houston ISD's Briarmeadow Charter School. This middle school has 600 students, 69 percent of which are proficient in math and 74 percent are proficient reading.

Briarmeadow's student-teacher ratio is 16:1, which is better than the district-wide student-teacher ratio, and it employs 38 full-time teachers.

U.S. News also ranked Briarmeadow as the second best middle school in Houston ISD.

Six additional Houston-area schools ranked among the top 25 best middle schools in Texas, including:

  • No. 18 – Cornerstone Academy, Spring Branch ISD
  • No. 19 – Mandarin Immersion Magnet School, Houston ISD
  • No. 21 – Smith Middle School, Cypress-Fairbanks ISD
  • No. 22 – Seven Lakes Junior High, Katy ISD
  • No. 23 – Houston Gateway Academy
  • No. 25 – Beckendorff Junior High, Katy ISD

The best elementary schools in Texas

Jesus A. Kawas Elementary school in Laredo was crowned the No. 1 elementary school in Texas for 2025, while two Houston-area schools made it into the top 10.Tomball ISD's Creekside Forest Elementary in The Woodlands is the No. 7 best elementary school statewide, boasting 656 students, 42 full-time teachers, and one full-time counselor. Students at this school, which U.S. News designates is situated in a "fringe rural setting," scored 90 percent efficiency in math and 94 percent efficiency in reading.Following one spot behind Creekside Forest in the statewide ranking is Sugar Land's Commonwealth Elementary School in Fort Bend ISD, coming in at No. 8. Commonwealth has a student population of 954 with 55 full-time teachers, and two full-time counselors. The school's student-teacher ratio is 17:1, and 90 percent of students are proficient in math, and 94 percent in reading.U.S. News says student success at Commonwealth is significantly higher than the rest of Fort Bend ISD."In Fort Bend Independent School District, 59 percent of students tested at or above the proficient level for reading, and 47 percent tested at or above that level for math," U.S. News said in Commonwealth's profile. "Commonwealth Elementary [also] did better in math and better in reading in this metric compared with students across the state."Other Houston-area schools that were ranked among the 25 best in Texas are:
  • No. 13 – Bess Campbell Elementary, Sugar Land, Lamar CISD
  • No. 20 – West University Elementary, Houston ISD
  • No. 23 – T.H. Rogers School, Houston ISD
  • No. 25 – Griffin Elementary, Katy ISD

"The 2025 Best Elementary and Middle Schools rankings offer parents a way to evaluate how schools are providing a high-quality education and preparing students for future success," said LaMont Jones, Ed.D., the managing editor for Education at U.S. News. "The data empowers families and communities to advocate for their children’s education. Research continues to indicate that how students perform academically at these early grade levels is a big factor in their success in high school and beyond."

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This article originally ran on CultureMap.