Bioscope Neuromonitor Device

The Bioscope Neuromonitor Device is a nerve locator and monitor that helps surgeons identify and preserve cranial motor nerves during surgery through intraoperative electrical stimulation and electromyography (EMG) monitoring. It consists of electronic, mechanical, and software components that work together to deliver stimulation current at 0.01–10 mA levels, detect muscle responses via EMG signals, and provide auditory and visual alerts to distinguish nerve tissue from surrounding tissue.

The device has two channels for stimulation and EMG signal collection, uses an embedded PCB card with embedded C software, features a 10.1-inch color touchscreen, operates at 1–5 Hz stimulation frequency, delivers constant current pulses of 100–300 microseconds, and has a stimulation range of 0.01–10 mA. It differs from the predicate device in hardware architecture, headbox bandwidth, software platform, screen size, and data printing/storage method, but performs the same core nerve monitoring and stimulation functions.

IEC 60601-1 Edition 3.2 (medical electrical equipment general safety), ANSI AAMI IEC 60601-1-2:2014 (EMC requirements), IEC 60601-1-6 (usability), ANSI AAMI IEC 62304:2006/A1:2016 (medical device software life cycle), IEC 60601-2-10 (nerve and muscle stimulator requirements), and IEC 60601-1-8 (alarm systems). Non-clinical testing included software verification, usability testing, EMC and low-voltage directive compliance, and system performance testing.

The device shares the same indications for use (thyroidectomy, parathyroidectomy, mastoidectomy), the same regulatory class and product code (Class II, ETN), and performs identical core functions as the predicate device: electrical nerve stimulation and EMG signal detection and display. Although eight technological differences exist (embedded PCB versus standard PC components, bandwidth, software architecture, screen size, stimulation range/type/frequency, and printing capability), none pose significant safety or performance risks because the subject device operates within or overlaps the predicate's functional parameters, meets the same electrical safety standards (EN60601-1, Type BF, Class I), and passes the same nonclinical performance tests.