DESKi, a French medtech company, has introduced HeartFocus Link, an AI-powered cardiac imaging solution that attaches to virtually any cart-based ultrasound system through a simple HDMI connection. The product consists of a tablet running HeartFocus’s proprietary guidance software, which overlays real-time probe positioning instructions directly onto the live ultrasound image. This innovation dramatically expands the reach of AI-assisted echocardiography, previously confined to Butterfly Network’s handheld devices, now available on the workhorse machines found in hospitals and training centers worldwide.
The Problem: A Sonographer Crisis
The healthcare industry is facing a critical shortfall of trained sonographers. Between 2011 and 2021, the demand for ultrasound examinations in the United States skyrocketed by 55%, from 38.6 million to 59.8 million procedures. Meanwhile, the sonographer workforce grew by only 44%, and educational capacity expanded by a mere 23%. This imbalance has left vacancy rates at 12.4% in 2025, down from 16.7% in 2023 but still unsustainable. The consequences are stark: echocardiography is performed on only 8% of eligible hospitalized patients, despite clear evidence that it reduces mortality and improves outcomes. With an aging population and increasing incidence of cardiovascular disease, the gap will only widen without innovative solutions.
How HeartFocus Link Works
HeartFocus Link supports 10 standard transthoracic echocardiographic views, covering the essential assessments for left ventricular function, valve pathology, and pericardial effusion. The patented 3D guidance system superimposes probe positioning cues—such as tilt angle, rotation, and pressure—onto the live image feed. This reduces cognitive load by keeping the operator’s eyes on a single screen, eliminating the need to glance at reference diagrams or instruction manuals. For training environments, the software adds two powerful features. Auto Record captures image clips automatically once predefined quality thresholds are met, removing the manual step of saving frames during practice sessions. A real-time quality scoring system provides immediate feedback, giving trainees an objective measure of image quality that supplements subjective instructor assessments. These tools allow novice users to achieve greater than 85% agreement with expert assessment of echocardiographic parameters, as demonstrated in research presented at the American College of Cardiology conference.
The Strategic Leap Beyond Butterfly
HeartFocus originally launched exclusively on Butterfly Network’s handheld ultrasound devices. While Butterfly’s single-probe platform offered portability and a user-friendly interface, it limited adoption to institutions that had invested in that specific hardware ecosystem. HeartFocus Link removes this constraint, enabling any hospital or training program with a cart-based ultrasound machine to access the same AI guidance. The tablet connects via HDMI to the ultrasound system’s video output, receiving the live feed and overlaying guidance without altering the machine’s native software. This approach—while pragmatic—comes with trade-offs. The system cannot access the raw ultrasound data stream, limiting the depth of AI analysis compared to a fully integrated solution that processes the signal at the source. Nonetheless, the benefit of immediate, cost-effective deployment across diverse hardware platforms is immense, especially for resource-constrained settings.
Regulatory Milestones and AI Certification
DESKi received FDA clearance for HeartFocus in April 2025, along with a Predetermined Change Control Plan that allows the company to update its AI algorithms without undergoing full regulatory review for each modification. This forward-looking regulatory approach accelerates iteration and improvement. The algorithms themselves are trained on more than 10 million data points, drawing from a wide range of patient demographics and pathology. In April 2026, DESKi partnered with Inteleos, a global healthcare certification body, to launch the first AI cardiac point-of-care ultrasound credential. This certification gives clinicians and institutions a formal way to demonstrate verified competency in AI-assisted cardiac imaging—an important step as hospitals begin to develop governance frameworks for AI tools in clinical settings. The credential also helps mitigate liability concerns, as it provides a standardized benchmark for training and proficiency.
Competitive Landscape and Market Dynamics
HeartFocus is not alone in targeting the AI-guided ultrasound space. UltraSight, an Israeli startup, has also received FDA clearance for its AI echocardiography guidance software, and several larger medical imaging companies are developing similar capabilities. The broader health-tech market is seeing rapid convergence between AI software, sensor hardware, and clinical workflows. Companies from smart ring manufacturers to dedicated cardiac imaging startups are chasing clinician adoption. DESKi’s $6 million seed round, led by Racine² with participation from BNP Paribas Développement, is modest compared to the scale of the challenge. To compete against deeply entrenched ultrasound OEMs with vast distribution networks, DESKi will need either significant commercial traction or a strategic partnership with a major manufacturer. The Butterfly Network relationship provides a foothold, but expanding into the mainstream cart-based market will require winning over hospital procurement departments and sonographer training programs.
The Training and Deployment Edge
One of HeartFocus Link’s strongest value propositions is in education. Medical schools, residency programs, and ultrasound training institutions can now teach cardiac ultrasound to large cohorts without requiring each student to own a specialized handheld device. The software’s real-time feedback and automated recording enable self-directed practice, freeing instructors to focus on nuanced interpretation rather than repetitive probe positioning drills. This aligns with a broader trend in medical education toward competency-based assessments and simulation. By lowering the barrier to entry for acquiring basic echo skills, HeartFocus Link addresses the sonographer shortage at its root: the pipeline of new practitioners. If a nurse practitioner or emergency physician can capture diagnostic-quality images after hours of training rather than months, the entire workflow improves. Patients receive faster diagnoses, wait times decrease, and specialist sonographers can concentrate on complex cases that truly require their expertise.
Future Clinical Deployment
Currently, HeartFocus Link is available only for educational and training purposes, with clinical deployment on cart-based systems expected to follow as DESKi navigates additional FDA pathways. The company positions itself as part of a growing cohort of AI-powered cardiac imaging startups that are gradually moving from pilot studies to routine clinical use. The HDMI-based design allows rapid prototyping and feedback integration without requiring changes to the ultrasound hardware. As the software matures and gathers real-world data from training sites, DESKi can refine its algorithms to handle more challenging patients—such as those with obesity or lung disease—who often produce suboptimal acoustic windows. The ultimate goal is to make high-quality echocardiography accessible to every hospitalized patient, not just the 8% who currently receive it. With HeartFocus Link, the company has taken a significant step toward that vision, proving that AI guidance can be decoupled from specific hardware and deployed at scale.