Multi-Institutional Ethics Approval
Institutional Ethics Committee approvals secured across more than 5 distinct organisations — a prerequisite for rigorous clinical data and a signal of institutional trust.
NIBRA-CS® — Non-Invasive Autonomic Function Testing System
A comprehensive autonomic function testing platform for evaluating parasympathetic and sympathetic responses using standardized cardiovascular reflex protocols — designed for clinical accuracy and ease of use.
Autonomic nervous system dysfunction is a significant clinical concern across multiple medical disciplines. Early detection and accurate assessment are essential for effective patient management.
NIBRA-CS® brings complete autonomic function assessment to the point of care — no specialist operator required, no invasive instrumentation, standardised clinical reports whether you run the full diagnostic battery or a rapid HRV screen. It is a patented, standalone device built for real clinical throughput in hospitals, diagnostic centres, and specialty clinics.
The system integrates ECG and non-invasive blood pressure monitoring with a guided clinical workflow and touchscreen interface — enabling a trained technician to conduct the full test battery and generate a clinician-ready report without additional specialist involvement.
6 validated tests across parasympathetic, sympathetic, and HRV domains
Simultaneous multi-parameter acquisition with real-time signal feedback
Touchscreen interface walks the operator through each protocol step
Structured, scored reports ready for direct inclusion in patient records
NIBRA-CS® has been deployed and evaluated in paid clinical pilots at nationally recognised medical colleges and teaching hospitals.
All India Institute of Medical Sciences
Clinical validation study conducted at AIIMS Kalyani — one of India's premier public medical institutions — establishing the clinical evidence base for NIBRA-CS®.
Medinipur Medical College & Hospital
Paid clinical pilot successfully completed with 300+ patients tested — demonstrating real-world clinical throughput and institutional readiness at scale.
Rajendra Institute of Medical Sciences
First commercial unit deployed at RIMS Ranchi. PHC-level screening integration currently underway — marking the transition from clinical validation to active institutional deployment.
Jagannath Gupta Institute of Medical Sciences
Clinical pilots conducted with institutional ethics approval, contributing multi-site validation data for the autonomic assessment protocol.
Institute for Indian Mother & Child Hospital
Clinical pilots conducted at IIMC, Sonarpur, extending the validation dataset across diverse patient populations in the greater Kolkata region.
Institutional Ethics Committee approvals secured across more than 5 distinct organisations — a prerequisite for rigorous clinical data and a signal of institutional trust.
NIBRA-CS® digitizes Ewing's Battery of Cardiac Autonomic Function Tests with standardized workflows, automated calculations and integrated HRV analysis.
The operator selects one mode on the device at the start of each session. Within either mode, the sequence is fixed and guided automatically — the operator doesn't pick individual tests.
The complete autonomic work-up — Ewing's six-test battery plus the 5-minute HRV recording, run in one fixed sequence. Produces a full CAN (Cardiac Autonomic Neuropathy) diagnosis.
A single passive 5-minute HRV recording — no active maneuvers, no BP cuff, Valsalva assembly, or handgrip dynamometer required. Ideal for rapid screening, follow-up visits, or patients who cannot safely perform the Full Test Battery's active maneuvers.
Five-Minute HRV Recording
Passive recording — patient rests quietly, no coaching required
A Short Test can always be followed by a Full Test Battery at a later visit if the HRV screen indicates further assessment is warranted.
Resting ECG acquisition before autonomic assessment.
Evaluates vagal activity using the E:I ratio during six controlled breathing cycles.
Calculates the 30:15 ratio to assess parasympathetic response following active standing.
Measures autonomic reflex integrity using the Valsalva ratio with guided respiratory maneuver.
Measures the fall in systolic blood pressure on standing to assess sympathetic vasomotor response and orthostatic tolerance.
Assesses the diastolic blood pressure rise during sustained isometric exercise, reflecting sympathetic pressor reserve.
Reports SDNN and RMSSD from beat-to-beat interval variation, reflecting overall autonomic modulation of heart rate.
Computes LF/HF ratio and spectral power to distinguish sympathetic and parasympathetic contributions to heart rate variability.
NIBRA-CS® generates a structured autonomic assessment report at the close of each test session — including all scored reflex indices, HRV parameters, and an interpretation guide — formatted for direct inclusion in patient records.
Reports are structured to be compatible with standard clinical documentation workflows. No manual data entry, no third-party software required.
Full Test reports include a Normal / Early / Definite / Severe CAN classification, combined with HRV status into a Final Interpretation — for the referring physician to review and confirm.
Consistent, scored output for every test session — reproducible across operators and settings.
Time Domain (SDNN, RMSSD), Frequency Domain (LF/HF ratio, spectral power), and Poincaré plot parameters reported.
Valsalva ratio, 30:15 ratio, E:I ratio, and BP response scores — all reported and scored per international reference ranges.
Reports provide supportive physiological assessment data for clinical review — every report includes a blank Doctor's Comments field, and final diagnosis remains the responsibility of the referring physician.
Compare Past Reports — Report Comparison Tool →
NIBRA-CS® standardizes every stage of autonomic function testing through an intuitive guided workflow.
Connect ECG electrodes and the non-invasive blood pressure cuff using standard clinical consumables.
Verify signal quality and acquire baseline ECG and blood pressure before initiating the protocol.
Guided on-screen instructions lead the operator through parasympathetic, sympathetic and HRV assessments.
Automated analysis produces a comprehensive clinical report with autonomic indices, HRV metrics and interpretation guidance.
NIBRA-CS® supports standardised autonomic function assessment across multiple clinical departments, enabling early diagnosis, longitudinal monitoring, and evidence-based research.
Enables early detection of cardiac autonomic neuropathy (CAN) and supports standardised follow-up of diabetic patients through repeatable autonomic function testing.
Assesses autonomic dysfunction associated with cardiovascular disease, supporting baroreflex evaluation, preventive cardiology, and risk stratification.
Evaluates cardiovascular reflex responses to support the assessment of unexplained syncope, autonomic dysfunction, and neurocardiogenic disorders.
Standardised protocols, digital reports, and reproducible autonomic testing support longitudinal studies, epidemiological research, and multicentre clinical trials.
NIBRA-CS® is CDSCO licensed, Made in India, and procurement-ready for government and private institutional purchase. Every deployment includes on-site installation, staff training, and ongoing technical support.
Whether you are evaluating for a single department or planning a multi-centre rollout, our team will work with your biomedical, clinical, and purchase committees to provide the documentation, demonstrations, and pricing you need to make an informed decision.
Suitable for
Inpatient and outpatient autonomic testing departments
Specialised autonomic function assessment
CAN screening and longitudinal neuropathy monitoring
ANS research studies and clinical trials
Clinical training and academic autonomic function programmes
Point-of-care autonomic testing as a standalone service
Regulatory approvals, patents and institutional documents supporting procurement, compliance and clinical evaluation.
Granted patents protecting the core autonomic assessment methodology and device architecture.
Regulatory approval authorising manufacture and commercialization of the medical device in India.
Innovation grant from the Department of Biotechnology supporting clinical development of NIBRA-CS®.
Official incubation and innovation support through one of India's leading technology incubation centres.
NIBRA-CS® deployed across clinical institutions and national healthcare events.
CAN Testing — IIMC, Kolkata
World Diabetes Day 2025
TIDE 2.0 Pravartan — New Delhi
Pilot Testing — JIMSH
School of Tropical Medicine
Launch — Global Bio India 2023
CDSCO MD5 Approval
With MeitY Joint Secretary — March 2026
Recognised and funded by leading national science, technology, and innovation bodies across India.
Contact our team to schedule a product demonstration or discuss deployment for your institution.
Institutional Enquiry
Demonstration requests, procurement evaluation, pilot deployment, and clinical collaboration. Direct line: [email protected]
Based in Kolkata, India
Incubated at IIM Calcutta Innovation Park. Serving institutions across India.
Registered address: 377, Purbalok, Mukundapur
Kolkata – 700099, West Bengal, India