VenoStent has raised additional funding. Image courtesy of VenoStent

A clinical-stage Houston health tech company with a novel therapeutic device has raised venture capital funding and secured a grant from the National Institutes of Health.

VenoStent Inc., which is currently in clinical trials with its bioabsorbable perivascular wrap, announced the closing of a $20 million series A round co-led by Good Growth Capital and IAG Capital Partners. The two Charleston, South Carolina-based firms also led VenoStent's 2023 series A round that closed last year at $16 million.

Additionally, the company secured a $3.6 million Small Business Innovation Research (SBIR) Phase II Grant from NIH, which will help fund its multi-center, 200-patient, randomized controlled trial in the United States.

Tim Boire, VenoStent CEO and co-founder, describes 2024 so far as "a momentous year" so far for his company.

"In the span of a few months, we initiated our first clinical sites, enrolled the first patients in our large RCT and closed our Series A with Norwest," Boire says in a news release. "We also received the NIH grant, which enables us to execute our trial with the highest degree of quality and rigor to make it as scientifically robust and impactful to patients as possible.

'Each of these are major company milestones that collectively represent many years of intensive and fruitful R&D and collaboration," he continues. "These recent milestones will propel our company forward to an exciting next phase."

Tim Boire is the CEO and co-founder of VenoStent. Photo via LinkedIn

The company's innovation, the SelfWrap, goes around arteriovenous (AV) access sites at the time of AV fistula creation surgery. The device is intended "to accelerate the usability and increase the durability of the fistula sites for chronic kidney disease (CKD) patients requiring hemodialysis," reads the release, "mimicking the arterial environment in veins, which experience a 10x increase in pressure and flow during AV creation and causes the veins to become unusable in dialysis."

Along with the investment, VenoStent announced two new board observers. Norwest General Partner Dr. Zack Scott and Investor Dr. Ehi Akhirome are bringing their expertise to the growing company.

"Norwest's investment is tremendous validation for VenoStent, and we are thrilled to have both Zack and Ehi joining the company's board," VenoStent COO and Co-Founder Geoffrey Lucks adds in the release. "Zack and Ehi have extensive knowledge in our space, and their added value will match the capital and cache of Norwest dollar-for-dollar."

Last year at the same time VenoStent announced its last funding round, the SelfWrap was approved by the U.S. Food and Drug Administration to begin its U.S. Investigational Device Exemption (IDE) study.

"Over half a million people in the U.S. rely on hemodialysis to survive and require an arteriovenous fistula creation surgery in order to receive the treatment. However, the AV fistula procedure has a one-year failure rate of more than 60 percent, which significantly impacts patients' survival rates and quality of life," Scott says in the release. "VenoStent's groundbreaking technology for AV fistula formation, SelfWrap, has the potential to significantly improve these odds. We look forward to working with the VenoStent team as it proves the efficacy of this breakthrough technology in order to improve the lives of hundreds of thousands of CKD patients."

Last summer, Boire told InnovationMap on the Houston Innovators Podcast that he's looking to launch the product in 2026.

Jessica Traver Ingram, CEO and co-founder of IntuiTap, joins the Houston Innovators Podcast to share her company's latest milestone. Photo courtesy of IntuiTap

With FDA approval, Houston health tech company prepares nationwide deployment

Houston innovators podcast episode 232

Jessica Traver Ingram has been captivated by the intersection of physics and health care for most of her life, and that passion led her to contributing to the establishment of the Texas Medical Center's Biodesign Fellowship. After helping make the program a reality, Traver Ingram then participated in it as a fellow.

The program selects fellows and then lets them explore the TMC's member institutions to find ways to innovate within unmet clinical needs, and the inefficiency and challenges with placing epidurals and lumbar punctures caught Traver Ingram and her cohort's eye. The process relies completely on the health care practitioner's ability to feel the spine with their fingers to make the injection.

"We kept watching the inefficiencies of these procedures, and everyone was like, 'you're right, we don't really know why we do it this way,'" Traver Ingram says on the Houston Innovators Podcast. "It's really cool to be outsiders watching and observing, because you just see things other people don't see — and that's in any industry."

With that, IntuiTap was born. Traver Ingram describes its tool, the VerTouch, as a "stud finder for the spine." After years of growing the company, she can also now call it FDA-approved.


"FDA clearance allows us to market the device in the United States, so we are entering the commercial launch stage of the company, which is really exciting," Traver Ingram says. "We plan to have these devices available in hospitals across the country within the year."

First up is what Traver Ingram calls a soft launch. The company is picking five institutions that want to be centers of excellence for the device and doing trial launches there before entering into a greater, nationwide rollout.

"It's just crazy that what started as just an idea on paper is now FDA approved and commercially ready and something that patients can see in hospitals this year," Traver Ingram says.

And the timing is important, she explains, adding that where the health care industry seems to be at as a whole is primed for innovation like IntuiTap.

"There's a lot of really exciting developments happening in health care right now," Traver Ingram says. "I feel like we're really at a tipping point for innovation and we're going to see some really big leaps in the next couple of years.

"One of the exciting trends I think that we're seeing is a shift away from blind procedures or procedures that are seen as an art requiring a significant amount of skills toward more science-based, safer, consistent, and repeatable procedures," she continues. "We fit really well into that category, so I'm glad that we're seeing that shift."

Mara McFadden (left), CEO of Endolumik, took home the top prize at the Ignite Fire Pitch Competition. Photo courtesy of Ignite

Houston organization doles out over $775,000 in prizes to women-led health tech startups

and the winner is

After virtual and postponed events, Ignite Healthcare Network finally got to honor its 2021 cohort and name the annual winners.

The Fifth Annual Fire Pitch Competition was slated to take place last November, but was postponed to January. Affected by the Delta and then Omicron variants of COVID-19, the event finally got to return to in-person networking and pitches on Thursday, March 3.

"The opportunity to bring people together is a really different level of engagement and energy," Ayse McCracken, founder and board chair of Ignite, says ahead of the awards event. "We love seeing the energy that's being generated in Houston around innovation — and particularly health care innovation."

Seven companies pitched and three were awarded monetary prizes. Morgantown, West Virginia-based Endolumik, which has developed a patent-pending fluorescence-guided device to improve visualization and safety of robotic and laparoscopic bariatric operations, took home the top prize, which included a total of $500,000 in investment prizes from the Texas Medical Center Venture Fund and Wavemaker Three-Sixty Health.

Second place was awarded to Rx Bandz of Locust Valley, New York. The company created the MiniJect, the world’s smallest military-grade auto-injector designed to deliver a wide range of injectable medication, and was awarded $250,000 from the Texas Halo Fund and $25,000 from The Southwest National Pediatric Device Innovation Consortium.

San Antonio-based Hera Biotech took third place and was awarded a pilot program prize with Banner Health. Hera has developed the first non-surgical, tissue-based test capable of diagnosing endometriosis.

Ignite taps into Houston health care institutions to provide opportunities for its cohort of companies. According to a news release, this year’s partner organizations included Houston Methodist, Memorial Hermann Health System, Texas Children’s Hospital, Texas Children’s Pediatrics, The Menninger Clinic, Banner Health, Kindred Healthcare, Aetna, Commonwealth Care Alliance, BLUE KC, Hospital for Special Surgery, Summit Health, TMC Ventures, Texas Heart Institute, Golden Seeds, Portfolia, The Artemis Fund, Wavemaker 360 Health, Prosalus Capital Partners, 7Wire Ventures, Texas Halo Fund, Unity Point Ventures and others.

The judges who evaluated the competition’s panel of companies included:

  • Jay Goss, MBA General Partner, Wavemaker Three-Sixty Health
  • Amanda Hammel, Chief Information Officer, Memorial Hermann Health System
  • Karen Hill, MD, MBA, SVP and Chief Medical Officer, Texas Children’s Health Plan
  • Tom Luby, PhD, Director, Texas Medical Center Innovation Institute
  • Fiona Mack, PhD, Head of JLABS @TMC
  • Roberta Schwartz, PhD, EVP and Chief Innovation Officer, Houston Methodist Hospital
  • Andrew Truscott, Global Health Technology Lead, Accenture
These five InnovationMap stories were the most read of 2021. Photo by Dwight C. Andrews/Greater Houston Convention and Visitors Bureau

Here are Houston's top 5 health innovation stories of 2021

2021 in review

Editor's note: As 2021 comes to a close, InnovationMap is looking back at the year's top stories in Houston innovation. When it came to the health care innovation and technology — whether it's a Q&A with a health tech entrepreneur or a digital health startup raising funds — in Houston, five stories trended among readers.

Fresh off a $1.4B exit, this Houston innovator is focused on funding medical device tech

Larry Lawson joined InnovationMap for a Q&A about his startup's recent exit, his role on the boards of five med device companies, his investment activity, and more. Photo courtesy of Larry Lawson

Earlier this year, Houston-based serial entrepreneur Larry Lawson celebrated the exit of his medical device company, Preventice Solutions, which he sold to Boston ScientificBoston Scientific in a $1.4 billion deal.

Nowadays, Lawson is laser focused on investing in the Houston innovation ecosystem, particularly in medical device, as well as working on Proxima Clinical Research, a contract research organization in the Texas Medical Center he co-founded with Kevin Coker.

Lawson joined InnovationMap for a Q&A about the exit, his role on the boards of five med device companies, and his investment activity. He also shares how he sees the impact of COVID-19 and where Houston's burgeoning innovation ecosystem is headed. Click here to read the full article.

Houston founder talks growth and innovation in the pharmaceuticals industry

Shaun Noorian, founder and CEO of Empower Pharmacy, joined InnovationMap for a Q&A on his rapidly growing compounding pharmacy business. Photo courtesy of Empower Pharmacy

When Shaun Noorian encountered what he felt was a poorly ran process, as an engineer, he built something better. Now, he runs one of the nation's largest compounding pharmacies that's at a pivotal time for growth.

Headquartered in Houston, Empower Pharmacy is opening two new facilities locally — one debuts later this year and the other in 2022. Ahead of this milestone for his company, Noorian joined InnovationMap for a Q&A about how he decided to start his company and how he's grown it from a small office to two 85,000-square-foot facilities — as well as how Houston has been a big part of his company's success. Click here to read the full article.

Report: Houston ranks among the worst cities for unnecessary medical treatments

Houston hospitals have been reported to have an excess of unnecessary health care tests and procedures. Photo by Dwight C. Andrews/Greater Houston Convention and Visitors Bureau

Houston boasts of being home to the Texas Medical Center, the world's biggest medical complex. Yet Houston's medical community also holds a distinction that's hardly boast-worthy: It's the worst major metro area in Texas for unnecessary health care tests and procedures.

A study released May 4 by the Lown Institute, a health care think tank, shows hospitals in the Houston area collectively fare worse than their counterparts in Dallas-Fort Worth, San Antonio, and Austin for overuse of tests and procedures that the institute says offer little to no benefit.

To come up with its ranking, the institute looked at Medicare data for more than 1 million tests and procedures performed at over 3,100 U.S. hospitals from 2016 to 2018. Among the overused tests and procedures identified in the study are hysterectomy for benign disease, placement of coronary stents for stable heart disease, and diagnostic tests like head imaging for fainting.

"Overuse in American hospitals is a pervasive problem that needs to be addressed," Dr. Vikas Saini, president of the Lown Institute, says in a news release. "Hospitals want to do better, and these objective measures of performance can help them move forward." Click here to read the full article.

These are the 7 newest health tech companies to join TMCx

After a virtual bootcamp, the TMCx team selected seven startups to move forward in the accelerator. Photo courtesy of TMC

Last year, TMCx, the Texas Medical Center's health tech startup accelerator pivoted to digital programming.

The accelerator revamped its program to allow for an initial Bootcamp stage that would bring in a larger group of startups and then, after the boot camp, the program would move forward with a smaller group through the official acceleration process.

"We hosted 21 companies, representing six countries and 10 states, who each engaged with subject matter experts, clinical leaders, and corporate partners," writes Emily Reiser, senior manager of Innovation Community Engagement at TMC Innovation, in a blog post. "Over half of which ended Bootcamp in advanced discussions with hospitals and/or corporate partners." Click here to read the full article.

Houston biotech startup announces merger and $10M series A

A biotech startup focused on developing therapeutics for neurodegenerative and autoimmune diseases has some big news to share. Photo via Getty Images

A Houston company has emerged from stealth mode to announce a merger and a round of financing.

Coya Therapeutics, a clinical-stage biotech startup that focuses on creating therapeutics for neurodegenerative and autoimmune diseases, announced that it has completed a merger with Nicoya Health Inc. and raised $10 million in its series A. The round was led by Florida-based Allele Capital Partners LLC. Howard Berman, founder and board of directors for imaware, has been named CEO of Coya, as well as a member of the company's board of directors.

Coya's therapeutics uses innovative work from Dr. Stanley H. Appel, co-director of Houston Methodist Neurological Institute and Chair of the Stanley H. Appel Department of Neurology at Houston Methodist Hospital. The researcher has created a way to "isolate dysfunctional Tregs from a patient, convert them to a highly functional and neuroprotective condition, and expand these cells into the billions for intravenous reinfusion back to the patient," says Berman in a news release. This revolutionary work overcomes previous limitations in the field.

"I'm excited to have the opportunity to lead Coya at such an exciting and pivotal phase of growth," Berman says. "Through our sponsored research program in conjunction with Dr. Appel, we look forward to continuing advancement of this promising work and translating this work into a meaningful therapy for patients." Click here to read the full article.

These Houston startups have created health care-related solutions amid the coronavirus outbreak. Getty Images

These 7 Houston health tech companies are providing COVID-19 solutions

startups to the rescue

It's all hands on deck in Houston in the battle against coronavirus — and local biotech startups have risen to the occasion.

From mental health solutions and online portals to virtual medicine and new treatments, these Houston companies have recently launched or pivoted to new options in health care.

Mental Health Match

Ryan Schwartz is offering free counseling to Texans. Photo courtesy of Mental Health Match

Mental Health Match, a Houston-based startup that uses tech to easily connect people to mental health professionals, has announced the opportunity for 100 Texas residents to get their first appointment free and remotely.

The company cites data that shows:

  • A 78 percent increase in Texans who are concerned about their marriage
  • A 71 percent increase in Texans concerned with their parenting or their children
  • A 35 percent spike in Texans feeling panicked

"You might be practicing social distancing, but you are not alone. It is easier to make it through this together if you can get support and guidance from a skilled professional. That's why we're working with therapists across Texas to provide a free session to individuals who need it most," says Ryan Schwartz, founder of Mental Health Match, in a news release.

Texans can apply for the free sessions online on a first-come, first-served basis.

Medical Informatics Corp.

Medical Informatics Corp.'s Sickbay platform can monitor patients from afar. Photo via michealthcare.com

Houston-based Medical Informatics has created a virtual ICU program, called Sickbay, and the tech tool is being used to remotely monitor patients in Houston Methodist. The program works around the clock from a control hub to use artificial intelligence and algorithms to monitor patients.

The company, which recently moved into its office in TMCx+, announced major growth in January, just ahead of the coronavirus outbreak.

"We designed our Sickbay platform to give lost data back to doctors, nurses and other members of the care team so they could save more lives," says Vincent Gagne, vice president of product for MIC, in a news release. "In fact, our apps are built in collaboration with our clients, such as Texas Children's Hospital and Houston Methodist. Having these facilities blocks away from our headquarters accelerates that collaboration and development."

MolecularMatch

MolecularMatch is bringing together COVID-19 information and trials. Photo via molecularmatch.com

MolecularMatch, a Houston startup focused on clinical informatics, has launched a free portal that accumulates research and clinical trials for COVID-19. The company is a tenant of TMCx+ and a portfolio company of Houston-based venture capital group GOOSE.

"The number of therapeutic cures and vaccines being tested are growing at an astounding rate," says Eric Pulaski, CEO at MolecularMatch, in a news release. "Our tools make it easier for clinicians and patients to find the help they need. Hopefully, we can help save lives by shortening the time it takes to get more patients into clinical trials and by speeding up research to find cures and vaccines."

The product uses the company's artificial intelligence-backed curation platform and is updated every two to three days.

Luminare

Luminare Inc. pivoted to quickly create an online COVID-19 screening tool, and local governments have tapped into the resource.Andriy Onufriyenko/Getty Images

Founded in 2014, Houston-based health care software startup Luminare Inc. seeks to prevent sepsis, a life-threatening reaction to a host of infections that causes about one-third of U.S. hospital deaths. Recently, though, Luminare pivoted to address another health concern — the threat of the novel coronavirus.

After the novel coronavirus surfaced, Luminare retooled its sepsis-detection platform to create a free online self-assessment test for people who suspect they've contracted the virus. The test, available at CheckForCorona.com, helps someone figure out whether they should seek a coronavirus test.

An online screening typically takes less than two minutes. The confidential, secure assessment complies with guidelines from the U.S. Centers for Disease Control and Prevention (CDC) and the World Health Organization (WHO). Based on your assessment results, you might be directed to contact your local health department or, in the worst-case scenario, call 911. Click here to read more.

Manatee

Manatee users can sign up for three months free. Photo via getmanatee.com

Denver-based Manatee was just announced to be selected for the 2020 TMCx cohort, and — while programming is beginning virtually — the startup will be enroute to Houston as soon as it's safe. Manatee focuses on providing connected, everyday therapy for kids.

In light of the effects of COVID-19 on both parents and children, Manatee has allowed users to register for three months free. Individuals can apply online.

Moleculin Biotech Inc.

Houston-based Moleculin, which works on oncology treatment, has filed a patent for its treatment to battle the coronavirus. Getty Images

Houston-based Moleculin Biotech Inc., a clinical stage pharmaceutical company that typically focuses on cancer treatment, announced that it has filed for a new patent for its use of one of its products to be used against the coronavirus and other potential viruses.

This patent application is for Moleculin's WP1122, and the company has entered into a partnership with a major Texas university to advance its research.

"We've actually been working on the antiviral potential of WP1122 for some time now," says Walter Klemp, Moleculin's chairman and CEO, in a news release, "but the rise of COVID-19 has obviously placed a new sense of urgency on what we are doing. We hope to be generating animal data on WP1122's antiviral potential in the near term."

Pulmotech Inc.

Pulmotect, a clinical-stage biotechnology company based in Houston, is testing a drug that could be useful in mitigating the threats of the coronavirus, which is currently been recognized as a global health emergency. Getty Images

Experiments conducted by clinical-stage, Houston-based biotechnology company Pulmotect Inc. show its PUL-042 inhaled drug has proven effective in protecting mice against two types of coronavirus: severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS). Researchers performed those tests at the University of Texas Medical Branch at Galveston.

In the Galveston experiments, a single inhaled dose of PUL-042 protected lab mice from the SARS virus, and it greatly reduced the amount of virus in their lungs after the mice became infected with SARS or MERS.

"With the risks of virulent coronaviruses and other threats increasing, as shown by the recent outbreak in Wuhan that has already spread from China to other countries including the United States, Pulmotect is optimistic that its immune-stimulating technology could be useful in mitigating the threats of current and emerging pathogens and protecting vulnerable populations," says CEO Dr. Colin Broom in a news release. Click here to read more.

Houston, home to the largest medical center in the world, had a lot of trending health tech stories this year. Photo by Dwight C. Andrews/Greater Houston Convention and Visitors Bureau

Top 5 Houston health tech stories of 2019

2019 in review

Editor's note: As 2019 comes to a close, InnovationMap is looking back at the year's top stories in Houston innovation. Within the health category, top stories included new details from the Texas Medical Center's ongoing TMC3 project, health tech and medical device startups in Houston, and more.

Texas Medical Center reveals new details and renderings for its TMC3 campus

The design and construction team has been announced for TMC3. Courtesy of Elkus Manfredi Architects

The Texas Medical Center just announced the dream team of architects and designers that are making TMC3 into a reality.

Elkus Manfredi Architects, Transwestern, and Vaughn Construction are the three companies that will serve as the architectural and development team for the 37-acre research campus. TMC3's founding institutions — TMC, Baylor College of Medicine, Texas A&M University Health Science Center, The University of Texas Health Science Center at Houston, and The University of Texas MD Anderson Cancer Center — decided on the three entities.

"Texas Medical Center is eager to move forward with a bold, imaginative and dynamic new design vision for the TMC3 Master Plan," says TMC CEO and president, Bill McKeon, in a press release. "With the combined talents of Elkus Manfredi Architects, Transwestern, and Vaughn Construction on-board, I couldn't be more confident that this dream team will flawlessly execute the totality of the project's vision and fulfill its mission to bring together leading researchers and top-tiered expertise from the private sector to create the number one biotechnology and bioscience innovation center in the entire world."

TMC3 was first announced just over a year ago and is planned to open in 2022. The campus will incorporate research facilities, retail space, residential plans, a hotel and conference center, and green space. Parking will be underground to optimize surface area. To continue reading this top story, click here.

5 Houston medical device companies changing the industry

As medicine and technology both advance, these Houston startups are at the forefront of the industry. Getty Images

With the Texas Medical Center at the heart of Houston, health advancement opportunities are endless. Medical breakthroughs are happening across town, but as technology advances, the industry is seeing more and more startups popping up to take new tech tools and applying them to traditional medical devices and procedures.

These five Houston startups are developing the future of the industry — one device at a time. To continue reading this top story, click here.

Houston medical device company gains FDA approval

Houston-based Saranas has received de novo distinction from the FDA for its bleed monitoring technology. Courtesy of Saranas

When it comes to early bleeding detection, Houston-based Saranas, which closed $2.8 million in funding last year, is ahead of the game with its Early Bird Bleed Monitoring System. The Food and Drug Administration has recognized the medical device company and granted it De Novo distinction.

"Gaining FDA approval for the Early Bird is a significant milestone for Saranas as it demonstrates our continued commitment to address an unmet need for real-time detection and monitoring of endovascular bleed complications," says Saranas president and CEO, Zaffer Syed in a release. "As the first and only device on the market for early bleed detection, we have the potential to significantly reduce bleeding complications and related healthcare costs, while improving clinical outcomes in patients undergoing endovascular procedures."

The Early Bird technology is designed to detect bleeding from vessel injury caused by a surgery, for instance. One in five patients experienced a bleed complication in over 17,000 large-bore transcatheter procedures, according to the release which cites the National Inpatient Sample Database. To continue reading this top story, click here.

5 Houston biotech companies taking health care to new levels

With the Texas Medical Center in their backyard, these Houston biotech companies are creating breakthrough technologies. Getty Images

Houston is the home of the largest medical center in the world, so it comes as no surprise that the Bayou City is also home to breakthrough technologies. Here are five Houston companies developing some of this biotech advancements. To continue reading this top story, click here.

TMCx announces its next medical device cohort with 5 startups hailing from Houston

The next TMCx cohort begins August 5. Courtesy of TMC

The Texas Medical Center's startup accelerator, TMCx, has added 19 companies from all around the world to join its medical device family.

The TMC Innovation Institute team narrowed down 140 applications to 40 for the second round of the process, which includes face-to-face interviews, according to a release. After those, 18 companies were selected to join the TMCx09 class, which focuses on medical devices. The last cohort, which specialized in digital health, concluded on June 6.

Out of the 18 companies, five are from Houston. Four other startups hail from other corners of the United States, while 10 international companies also made the cohort. The program commences on August 5, and will run for four months before concluding in a demo day event in November. To continue reading this top story, click here.

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2 Houston space tech cos. celebrate major tech milestones

big wins

Two Houston aerospace companies — Intuitive Machines and Venus Aerospace — have reached testing milestones for equipment they’re developing.

Intuitive Machines recently completed the first round of “human in the loop” testing for its Moon RACER (Reusable Autonomous Crewed Exploration Rover) lunar terrain vehicle. The company conducted the test at NASA’s Johnson Space Center.

RACER is one of three lunar terrain vehicles being considered by NASA for the space agency’s Artemis initiative, which will send astronauts to the moon.

NASA says human-in-the-loop testing can reveal design flaws and technical problems, and can lead to cost-efficient improvements. In addition, it can elevate the design process from 2D to 3D modeling.

Intuitive Machines says the testing “proved invaluable.” NASA astronauts served as test subjects who provided feedback about the Moon RACER’s functionality.

The Moon RACER, featuring a rechargeable electric battery and a robotic arm, will be able to accommodate two astronauts and more than 880 pounds of cargo. It’s being designed to pull a trailer loaded with more than 1,760 pounds of cargo.

Another Houston company, Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. The engine, being developed in tandem with Ohio-based Velontra — which aims to produce hypersonic planes — combines the functions of a rotating detonation rocket engine with those of a ramjet.

A rotating detonation rocket engine, which isn’t equipped with moving parts, rapidly burns fuel via a supersonic detonation wave, according to the Air Force Research Laboratory. In turn, the engine delivers high performance in a small volume, the lab says. This savings in volume can offer range, speed, and affordability benefits compared with ramjets, rockets, and gas turbines.

A ramjet is a type of “air breathing” jet engine that does not include a rotary engine, according to the SKYbrary electronic database. Instead, it uses the forward motion of the engine to compress incoming air.

A ramjet can’t function at zero airspeed, so it can’t power an aircraft during all phases of flight, according to SKYbrary. Therefore, it must be paired with another kind of propulsion, such as a rotating detonation rocket engine, to enable acceleration at a speed where the ramjet can produce thrust.

“With this successful test and ignition, Venus Aerospace has demonstrated the exceptional ability to start a [ramjet] at takeoff speed, which is revolutionary,” the company says.

Venus Aerospace plans further testing of its engine in 2025.

Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. Photo courtesy of Venus Aerospace

METRO rolls out electric shuttles for downtown Houston commuters

on a roll

The innovative METRO microtransit program will be expanding to the downtown area, the Metropolitan Transit Authority of Harris County announced on Monday.

“Microtransit is a proven solution to get more people where they need to go safely and efficiently,” Houston Mayor John Whitmire said in a statement. “Connected communities are safer communities, and bringing microtransit to Houston builds on my promise for smart, fiscally-sound infrastructure growth.”

The program started in June 2023 when the city’s nonprofit Evolve Houston partnered with the for-profit Ryde company to offer free shuttle service to residents of Second and Third Ward. The shuttles are all-electric and take riders to bus stops, medical buildings, and grocery stores. Essentially, it works as a traditional ride-share service but focuses on multiple passengers in areas where bus access may involve hazards or other obstacles. Riders access the system through the Ride Circuit app.

So far, the microtransit system has made a positive impact in the wards according to METRO. This has led to the current expansion into the downtown area. The system is not designed to replace the standard bus service, but to help riders navigate to it through areas where bus service is more difficult.

“Integrating microtransit into METRO’s public transit system demonstrates a commitment to finding innovative solutions that meet our customers where they are,” said METRO Board Chair Elizabeth Gonzalez Brock. “This on-demand service provides a flexible, easier way to reach METRO buses and rail lines and will grow ridership by solving the first- and last-mile challenges that have hindered people’s ability to choose METRO.”

The City of Houston approved a renewal of the microtransit program in July, authorizing Evolve Houston to spend $1.3 million on it. Some, like council member Letitia Plummer, have questioned whether microtransit is really the future for METRO as the service cuts lines such as the University Corridor.

However, the microtransit system serves clear and longstanding needs in Houston. Getting to and from bus stops in the city with its long blocks, spread-out communities, and fickle pedestrian ways can be difficult, especially for poor or disabled riders. While the bus and rail work fine for longer distances, shorter ones can be underserved.

Even in places like downtown where stops are plentiful, movement between them can still involve walks of a mile or more, and may not serve for short trips.

“Our microtransit service is a game-changer for connecting people, and we are thrilled to launch it in downtown Houston,” said Evolve executive director Casey Brown. “The all-electric, on-demand service complements METRO’s existing fixed-route systems while offering a new solution for short trips. This launch marks an important milestone for our service, and we look forward to introducing additional zones in the new year — improving access to public transit and local destinations.”

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This article originally ran on CultureMap.