HYDROS Robotic System
Robotic waterjet ablation (Aquablation therapy) of prostate tissue for benign prostatic hyperplasia (BPH)
Ottava is Johnson & Johnson MedTech's soft-tissue surgical robot and the newest FDA-authorized entrant, granted De Novo marketing authorization on July 22, 2026 for ten general surgery procedures. Its defining feature is architecture: four nine-jointed arms are built directly into the operating table and stow beneath it, which J&J says cuts OR footprint by 30-50% versus boom-and-cart systems. Commercial rollout is just beginning, so availability is limited.
| Specification | Value | Confidence | Source |
|---|---|---|---|
| Arms | 4 robotic arms integrated directly into the operating table | verified | jnjmedtech.com (2026-09-01) |
| Architecture | First table-integrated soft-tissue robotic system; arms stow beneath the table when not in use | verified | jnjmedtech.com (2026-09-01) |
| Arm articulation | 9 joints per arm for anatomical access and collision avoidance | reported | medtechdive.com (2026-09-01) |
| OR footprint | 30-50% less space than boom-and-cart systems, per J&J | reported | medtechdive.com (2026-09-01) |
| Setup automation | Push-button movement into predefined procedural arm poses | verified | jnjmedtech.com (2026-09-01) |
| US indications | 10 general surgery procedures including gastric bypass, gastric sleeve, cholecystectomy, appendectomy and hiatal hernia repair | verified | jnj.com (2026-09-01) |
Every spec is cited to its source with a retrieval date. verified = manufacturer-published · reported = reputable press/analyst. Verify with the manufacturer before purchase decisions.
Ottava's table-integrated design is the most genuinely different architecture to reach the US market, and J&J can pair it with its Ethicon instruments business. But it launches years behind da Vinci's ecosystem and slightly behind Hugo's US entry, with an initial indication set focused on upper-abdomen general surgery. Hospital buyers should treat 2026-2027 as Ottava's proving period: watch real-world uptime, instrument breadth and how fast indications expand.
Robotic waterjet ablation (Aquablation therapy) of prostate tissue for benign prostatic hyperplasia (BPH)
Robotic-arm assisted orthopedic surgery: total knee, total hip, partial knee, spine and shoulder procedures
Robotic-assisted minimally invasive soft-tissue surgery across urology, gynecology, general surgery, thoracic and, since 2026, selected cardiac procedures
Robotic-assisted minimally invasive soft-tissue surgery; US indication currently covers urologic procedures such as prostatectomy, nephrectomy and cystectomy