NuVasive Pulse System

The NuVasive® Pulse™ System is an integrated surgical platform designed to enhance spinal surgery outcomes by providing comprehensive intraoperative neurophysiologic monitoring, advanced fluoroscopic image enhancement with potential radiation reduction, and precise image-guided navigation for instrument and implant placement. Its methodology combines electrical nerve stimulation with EMG, MEP, and SSEP monitoring, software-based image processing, and optical tracking technology to assist surgeons in complex spinal procedures, including pedicle screw insertion, interbody device placement, and custom rod contouring.

The NuVasive® Pulse™ System is an integrated medical device platform designed for use in spinal surgery, as well as neck dissections, thoracic surgeries, and procedures on upper and lower extremities. It combines three main components: Pulse NVM5 for intraoperative neurophysiologic monitoring, Pulse LessRay for fluoroscopic image enhancement and tracking, and Pulse Navigation for image-guided localization. The system aims to provide surgeons with real-time critical information by electrically stimulating nerves and monitoring responses (EMG, MEP, SSEP), enhancing the clarity of low-dose fluoroscopic images, and enabling precise tracking of surgical instruments and implants relative to patient anatomy. The Pulse NVM5 component offers a comprehensive suite of neurophysiological monitoring functions, including XLIF for nerve detection and avoidance, screw testing for proximity to nerves, free-run EMG for spontaneous nerve activity, twitch tests for neuromuscular blockade assessment, MEP for motor pathway integrity, and SSEP for sensory spinal cord function. It also incorporates Bendini® software to assist in custom spinal rod bending based on implant locations and provides remote access capabilities. Pulse LessRay enhances fluoroscopic images, aiming to improve low-dose image quality for reduced radiation exposure, and supports C-arm and instrument tracking. Pulse Navigation provides stereotactic, computer-assisted guidance by displaying tracked instruments on 2D or 3D patient radiographic images, supporting procedures like pedicle screw and interbody device placement. Nonclinical and cadaveric testing were performed to validate its tracking accuracy, navigation capabilities, and overall system integration.

AI Regulatory Concerns

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Jev reads the full FDA letter and returns calibrated concern probabilities per regulatory category. These are AI estimates, not regulatory advice.

• Q1. How does the Pulse LessRay's image enhancement algorithm quantitatively compare to standard fluoroscopy in terms of radiation dose reduction while maintaining diagnostic image quality across various patient body mass indexes?; What is the quantified accuracy and precision of the Pulse Navigation system (both 2D and 3D modalities) for pedicle screw and interbody device placement in challenging anatomical presentations or revision surgeries, as demonstrated in clinical settings beyond the provided cadaveric studies?; Are there specific surgical scenarios or patient populations where one neuromonitoring modality (EMG, MEP, SSEP) within the Pulse NVM5 has demonstrated superior predictive value for neurological outcomes compared to the others or their combination?; How does the integration of Bendini® software for spinal rod bending impact operative time, the accuracy of rod contouring to planned sagittal parameters, and ultimately, patient-reported outcomes related to spinal alignment compared to traditional manual bending techniques?; What are the reported learning curves and user-identified ergonomic or workflow challenges associated with integrating and simultaneously utilizing all three core components (NVM5, LessRay, Navigation) of the Pulse System during complex spinal procedures?