STOCK TITAN

Nuwellis Announces Aquadex Software Update

Nuwellis (NASDAQ: NUWE) released a software update for the Aquadex SmartFlow ultrafiltration platform on April 21, 2026.

(Moderate)

Sentiment and the balance of points

Rhea-AI Sentiment reads the wording of the document, how positive or negative its language is on a 1 to 5 scale. The balance of points shown with the takes weighs what the document actually discloses, so the two can disagree, for example when a trial that missed its main goal is described in upbeat language.

Tags

Nuwellis (NASDAQ: NUWE) released a software update for the Aquadex SmartFlow ultrafiltration platform on April 21, 2026. The update reduces ultrafiltration step size from 10 mL/hr to 5 mL/hr, adds a refined blood flow algorithm to reduce nuisance alarms, improves clotting visibility, and expands hourly therapy logs. The update targets improved usability and more precise fluid management for pediatric patients and is available to existing customers at no cost via standard deployment with field support.

Loading...
Loading translation...

Positive

  • Ultrafiltration step size reduced to 5 mL/hr from 10 mL/hr
  • Update available to existing customers at no cost
  • Refined blood flow algorithm aimed to reduce nuisance alarms
  • Expanded hourly data log with additional therapy parameters

Negative

  • None.
Argus Apr 21 session
-0.86% close to close Open Argus
Details

News Market Reaction – NUWE

On Apr 21, the day this news came out, NUWE closed 0.86% below the previous close.

Data tracked by StockTitan Argus for the Apr 21 session.

Key Figures

New UF step size: 5 mL/hr Prior UF step size: 10 mL/hr
New UF step size
5 mL/hr
Updated Aquadex ultrafiltration adjustment for pediatric-focused fluid management
Prior UF step size
10 mL/hr
Previous Aquadex ultrafiltration adjustment granularity before software update

Historical Context

5 past events · Latest: Apr 16
5 events
  1. Apr 16

    Commercial hires

    24h Move
    -2.9%

    Rehiring three former employees to accelerate Aquadex commercial and clinical momentum.

  2. Apr 09

    IR engagement

    24h Move
    +0.0%

    Engaged CORE IR for PR, shareholder communications, and social media support.

  3. Apr 07

    Territory expansion

    24h Move
    +3.7%

    Created dedicated South Texas commercial territory to strengthen hospital engagement.

  4. Mar 31

    Pediatric milestone

    24h Move
    +0.0%

    Pediatric category reached ~50% of U.S. revenue across 47 centers in 2025.

  5. Mar 17

    Acquisition close

    24h Move
    -8.5%

    Completed Rendiatech acquisition to add automated continuous kidney function monitoring.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Key Terms

ultrafiltration, cardiorenal, pediatric
3 terms
ultrafiltration medical
"Aquadex SmartFlow® ultrafiltration platform. The update is designed to improve"
Ultrafiltration is a process that separates small particles and liquids from larger molecules or substances using a filter with tiny pores. It is often used in water treatment and medical applications to remove impurities or excess fluids. For investors, understanding ultrafiltration is important because innovations or changes in this technology can impact industries focused on clean water, healthcare, and filtration products.
cardiorenal medical
"a medical technology company focused on solutions for patients with cardiorenal conditions"
Cardiorenal describes the close connection between the heart and kidneys, including conditions where disease in one organ directly affects the other — like a pump and filter that rely on each other to keep the system balanced. Investors care because treatments, diagnostics, or drugs that target this interaction can address multiple health problems at once, influencing market size, regulatory scrutiny, clinical trial complexity, and potential returns in healthcare and biotech sectors.
pediatric medical
"important in pediatric care, where small-volume fluid shifts can have a significant"
Relating to the medical care, products, or research specifically for infants, children, and adolescents. It matters to investors because treatments, devices, or drugs designed for this age group face different safety standards, testing requirements and market dynamics than adult products—think of it like tailoring clothing to fit a child rather than an adult, which changes design, approval hurdles and potential customer size, affecting regulatory risk and revenue prospects.

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google
Add on Google

New release enhances usability and delivers more precise fluid management for pediatric patients

MINNEAPOLIS, April 21, 2026 (GLOBE NEWSWIRE) -- Nuwellis, Inc. (Nasdaq: NUWE), a medical technology company focused on solutions for patients with cardiorenal conditions, today announced a software update to its Aquadex SmartFlow® ultrafiltration platform. The update is designed to improve usability, streamline clinical workflow, and enhance overall user experience.

A key feature of the release is a more precise ultrafiltration adjustment capability, reducing the step size to 5 mL/hr from 10 mL/hr. This advancement is particularly important in pediatric care, where small-volume fluid shifts can have a significant clinical impact.

“The Aquadex software update reflects our commitment to continuous improvement driven by customer feedback and clinical need,” said Nuwellis’ CEO John Erb. “This release provides clinicians with greater control over fluid management – especially in pediatric patients, which represents our largest and fastest-growing customer category – while also making the system easier to use in demanding care environments.”

The update also includes enhancements aimed at improving ease-of-use of the device and therapy visibility, particularly for nursing staff managing day-to-day treatment. Key updates include:

  • Refined blood flow algorithm designed to reduce nuisance alarms and improve flow stability;
  • Enhanced blood flow resistance graph to provide earlier indication of potential filter clotting ; and
  • Expanded hourly data log with additional therapy parameters to support clinical monitoring and documentation.

The software update is available to existing customers at no cost and can be deployed through standard update processes with support from Nuwellis’ field and service teams.

About Nuwellis

Nuwellis, Inc. (Nasdaq: NUWE) is a medical technology company committed to delivering solutions for patients with cardiorenal conditions. The Company develops solutions designed to support patient care through monitoring, therapy, and data-informed clinical decision-making across acute and chronic care settings. Nuwellis’ portfolio includes commercially available and development-stage technologies addressing complex cardiorenal conditions, with a focus on safety, precision, and scalability across patient populations. For more information, visit www.nuwellis.com.

Forward-Looking Statements

Certain statements in this release may be considered forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including without limitation, statements regarding the new market opportunities and anticipated growth in 2026 and beyond. Forward-looking statements are predictions, projections and other statements about future events that are based on current expectations and assumptions and, as a result, are subject to risks and uncertainties. Many factors could cause actual future events to differ materially from the forward-looking statements in this release, including, without limitation, those risks associated with our ability to execute on our commercialization strategy, the possibility that we may be unable to raise sufficient funds necessary for our anticipated operations, our post-market clinical data collection activities, benefits of our products to patients, our expectations with respect to product development and commercialization efforts, our ability to increase market and physician acceptance of our products, potentially competitive product offerings, intellectual property protection, our ability to integrate acquired businesses, our expectations regarding anticipated synergies with and benefits from acquired businesses, and other risks and uncertainties described in our filings with the SEC. Forward-looking statements speak only as of the date when made. Nuwellis does not assume any obligation to publicly update or revise any forward-looking statements, whether due to new information, future events or otherwise.

For further information, please contact:

Investor Relations:
ir@nuwellis.com

Media Contact:

CORE PR
media@nuwellis.com


FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What change did Nuwellis (NUWE) make to Aquadex ultrafiltration step size on April 21, 2026?

The update reduces the ultrafiltration adjustment step size to 5 mL/hr from 10 mL/hr. According to the company, this finer resolution is intended to improve precision in small-volume fluid shifts, which is particularly relevant for pediatric patients.

How does the Aquadex software update affect pediatric fluid management for NUWE devices?

It provides more precise control by halving step size to 5 mL/hr, improving small-volume adjustments. According to the company, this change aims to reduce clinical risk associated with small fluid shifts and better support pediatric care needs.

Will NUWE customers be charged for the Aquadex software update and how is it deployed?

Existing customers receive the software update at no cost and it is deployable through standard update processes. According to the company, field and service teams will support deployment and standard update procedures will be used.

What other clinical features did Nuwellis add in the April 21, 2026 Aquadex update?

The release adds a refined blood flow algorithm to reduce nuisance alarms, an enhanced resistance graph for earlier clot indicators, and expanded hourly therapy logs. According to the company, these aim to improve workflow and nursing visibility.

Does the Aquadex update for NUWE change device usability for nursing staff?

Yes; the update includes ease-of-use improvements and enhanced therapy visibility intended to help nursing workflow. According to the company, these changes are designed to make day-to-day management and documentation clearer and more efficient.

Keep reading