Intelligent Surgical Unit™ (ISU™)
by Asensus Surgical
· Based in United States →
— Real-time surgical insights, powered by human ingenuity.
Contact for pricing
Regulatory Status Disclosed
Overview
The Intelligent Surgical Unit™ (ISU™) by Asensus Surgical (a KARL STORZ company) is an intraoperative Augmented Intelligence platform designed to provide real-time digital augmentation and machine vision capabilities during minimally invasive procedures. It serves as the digital engine for the Senhance® Surgical System, acting as a communication hub that connects the surgeon console with the robotic manipulator arms.
The ISU is designed for surgeons performing soft-tissue surgeries across specialties such as general surgery, gynecology, and pediatrics within hospital operating rooms. It integrates directly into the surgical workflow, processing live video feeds to deliver actionable insights without requiring manual tools like sterile measuring tapes.
Key capabilities of the ISU include:
- Advanced Camera Control: Features eye-tracking technology that automatically moves the camera based on the surgeon’s gaze, alongside smart zoom and instrument-tracking to keep the active surgical field centered.
- Machine Vision & Measurement: Enables real-time, point-to-point and contour measurements directly on the screen, assisting with tasks such as sizing mesh or identifying anatomical dimensions.
- Digital Annotation: Allows the placement of digital tags and provides 3D visualization to enhance spatial awareness and anatomical recognition during procedures.
Reviewed by Pouyan Golshani, MD — Interventional Radiologist
Key Features
- Real-time surgical insights and visual guidance
- Augmented Intelligence platform for intraoperative use
- Integration with Senhanceu00ae Surgical System
- Anatomy identification and safety hazard detection
- 3D intraoperative measurement (point-to-point and contour)
- Digital tagging and annotation for team communication
- Surgeon eye-sensing camera control (Eye Tracking, Follow Us, Go To, Smart Zoom)
- Haptic feedback (via Senhance System)
- Cloud-based surgical data analytics and dashboards (developing)
- Compatible with reusable 3mm and 5mm instruments (via Senhance System)
Use Cases
- Performing safer and more predictable surgical procedures
- Enhancing surgeon decision-making during complex surgeries
- Navigating challenging anatomical structures
- Reducing surgical variability and improving outcomes
- Improving communication and coordination within the surgical team
- Supporting remote mentorship, clinical support, and virtual proctoring
Details
| Category | Surgical AI |
| Pricing | Contact for pricing |
| Deployment | On-premise hardware integrated with the Senhance® Surgical System, with cloud capabilities for data storage and analytics. |
| Compliance | |
| BAA Available | Unknown |
| HIPAA Compliant | Unknown |
| FDA Status | Cleared AI-estimated |
| Integrations | |
| EHR | Not specified |
| Specialties | General Surgery, Obstetrics & Gynecology, Urology |
What the Web Says
The Asensus Surgical Intelligent Surgical Unit (ISU) is an FDA-cleared, CE Marked, and PMDA-approved augmented intelligence platform designed to enhance robotic-assisted surgery. It integrates with the Senhance Surgical System, providing surgeons with real-time clinical insights and digital tools. The ISU aims to improve precision, consistency, and efficiency in soft-tissue surgery by leveraging computer vision, machine learning, and digital augmentation.
Overall: MixedStrengths
- Enhances precision and accuracy in surgical procedures through augmented intelligence and real-time insights.
- Reduces surgeon cognitive fatigue by automating tasks like camera control and providing real-time context.
- Offers advanced digital tools such as active eye tracking, 3D measurement, and digital tagging for improved control and decision-making.
- Compatible with a wide selection of laparoscopic camera platforms and utilizes reusable instruments, potentially leading to cost optimization.
- Provides real-time data and analytics to standardize successful outcomes and enrich medical education.
- Has received regulatory approvals (FDA, CE Mark, PMDA) for its expanded machine vision capabilities, indicating a level of trust and safety.
Limitations
- The Senhance system, with which the ISU integrates, has been noted to have technological limitations, such as the absence of articulating robotic forceps, which may hinder complex procedures.
- Asensus Surgical's journey has been marked by setbacks and fierce competition, with the Senhance system facing challenges and a Class I FDA recall for unexpected movement in 2023.
- Some robotic surgery, including procedures that might utilize the ISU, can be a 'loss leader' for hospitals due to procedure time and reimbursement rates, despite marketing efforts.
- High development costs, reliance on data quality, and ethical concerns about autonomy and liability are general challenges for AI integration in robotic surgery.
- The Senhance Surgical System will be discontinued as part of the integration of Asensus Surgical into KARL STORZ.
Based on reviews from: Asensus Surgical, North Carolina Biotechnology Center, YouTube (DeviceTalks AI, The Mullings Group, Asensus Surgical), Business Model Canvas Research, Startup In Medtech, Medical Device Network, ResearchGate, Reddit (r/Asensus, r/MedicalDevices, r/stocks), Electronics For You, Business Wire, Fierce Biotech, PMC - NIH, Capterra, G2, IntuitionLabs
Last updated: 2026-08-01
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Press & Coverage
KARL STORZ
Acquisition of Asensus Surgical by KARL STORZ
KARL STORZ completed its acquisition of Asensus Surgical in August 2024, integrating Asensus's robotic surgery technology to enhance its portfolio and market presence in the digital surgical market.
2024-08
Nasdaq (GlobeNewswire)
Asensus Surgical Announces Signing of Definitive Merger Agreement with KARL STORZ
Asensus Surgical entered into a definitive merger agreement with KARL STORZ Endoscopy-America, Inc., where KARL STORZ would acquire all outstanding shares for $0.35 per share in cash.
2024-06
The Robot Report
Asensus Surgical Agrees to Merger with KARL STORZ
Asensus Surgical agreed to be acquired by KARL STORZ, an endoscopy expert, which plans to continue developing Asensus's robotic systems.
2024-07
GlobeNewswire
Asensus Surgical Announces Collaboration with NVIDIA to Enhance Augmented Intelligence Capabilities of the ISU
Asensus Surgical announced a collaboration with NVIDIA to accelerate the development of its Intelligent Surgical Unitu2122 (ISUu2122) and improve its augmented intelligence capabilities for surgeons.
2023-09
Nasdaq (GlobeNewswire)
Asensus and KARL STORZ to Market the Intelligent Surgical Unit and Co-Develop New Vision and Instrument Platforms
Asensus Surgical and KARL STORZ entered a Memorandum of Understanding for KARL STORZ to market and sell Asensus's Intelligent Surgical Unitu2122 (ISUu2122) as a standalone device and to co-develop next-generation instrumentation.
2023-02
Business Wire
Asensus Surgical Receives FDA 510(k) Clearance for Expansion of Machine Vision Capabilities
Asensus Surgical received FDA 510(k) clearance for an expansion of machine vision capabilities on its Intelligent Surgical Unitu2122 (ISUu2122), introducing advanced features like 3D measurement and digital tagging.
2021-09
Hospital & Healthcare Management
Asensus Surgical Recognized for Medical Device Innovation in 2021 MedTech Breakthrough Awards Program
Asensus Surgical's Intelligent Surgical Unitu2122 (ISUu2122) won the 'Best Overall Medical Device Product' award in the 2021 MedTech Breakthrough Awards for its pioneering computer vision capabilities in surgery.
2021-05
Asensus Surgical
Intelligent Surgical Unitu2122 - Digital Augmentation
The Intelligent Surgical Unitu2122 (ISUu2122) is an FDA-cleared, CE Marked, and PMDA-approved Augmented Intelligence platform for robotic surgery, offering real-time visual guidance and digital tools.
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Videos
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Frequently Asked Questions
The ISUu2122 integrates with the Senhance Surgical System and compatible third-party vision systems, providing augmented intelligence through machine vision capabilities. It offers real-time functionalities like eye-tracking camera control, voice commands, 3D measurement, digital tagging, and image enhancement to assist surgeons during procedures.
The ISUu2122 received FDA clearance in March 2020, with expanded machine vision capabilities cleared in September 2021, and also holds CE Mark and PMDA approvals. While specific ISUu2122 HIPAA compliance details were not extensively detailed in the search, medical devices using AI are generally subject to rigorous cybersecurity and data protection protocols to ensure patient data privacy and HIPAA compliance.
Yes, other robotic surgical systems like Intuitive Surgical's da Vinci, Medtronic's Hugo, and CMR Surgical's Versius are available as alternatives. The ISUu2122 differentiates itself by being an augmented intelligence platform that provides real-time machine vision, digital tools, and performance-guided surgery, aiming to enhance surgeon control and reduce variability.
While specific ISUu2122 pricing was not fully detailed, general AI-based surgical robots can have public list prices ranging from $1.2 million to $2.5 million. The total cost of ownership, including service contracts and AI software subscriptions, can add 20-50% over five years. One source indicates the ISUu2122 adds $0 to per-procedure costs, suggesting its cost may be integrated into the Senhance system or a different model.
The ISUu2122's AI capabilities, while advanced, do not replace human clinical judgment and experience, especially when handling unexpected complications. Clinicians should exercise caution and rely on traditional methods in rare or atypical anatomical variations, and always critically evaluate AI recommendations to avoid overreliance.
Comprehensive training for surgeons and surgical teams on the ISUu2122 and Senhance system combines self-guided online modules with in-person, hands-on training at global skill centers. This is followed by proctorship during initial cases in the operating room to ensure proficiency and safe utilization.
The ISUu2122 aims to enhance surgical precision, consistency, and efficiency by providing real-time digital insights, such as millimeter-accurate measurements and enhanced camera control. The system is designed to reduce surgical variability and improve patient recovery, with clinical evidence being developed to support these value propositions.
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| Last Verified: 2026-04-27 | First Added: 2026-04-27