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510(k) Data Aggregation
(243 days)
NSS-2 System
The NSS-2 BRIDGE is a percutaneous nerve field stimulator (PNFS) system, that can be used as an aid to reduce the symptoms of opioid withdrawal, through application to branches of Cranial Nerves V, VII, IX and X, and the occipital nerves identified by transillumination.
NSS-2 BRIDGE is a device that electrically stimulates branches of Cranial Nerves V. VII. IX and X, and the occipital nerves identified by transillumination through percutaneous electrodes to aid in the reduction of opioid withdrawal symptoms. The device consists of (1) a percutaneous nerve field stimulator (PNFS; Figure 1), (2) a multi-pin wire harness percutaneous electrode array (Figure 2), and (3) a pen light for use in the transillumination technique that aids in positioning of the percutaneous electrodes (Figure 3).
Acceptance Criteria and Study for NSS-2 BRIDGE
1. Table of Acceptance Criteria and Reported Device Performance
Acceptance Criteria Category | Specific Criteria | Reported Device Performance/Study Findings |
---|---|---|
Effectiveness | The device, when used as an aid to reduce symptoms of opioid withdrawal, should demonstrate a clinically significant reduction in opioid withdrawal symptoms. A COWS score change of 15% for a given individual is considered clinically significant. | Clinical Study Results: A single-arm, open label, multi-center retrospective study (n=73) demonstrated a significant reduction in COWS scores: |
- Baseline: Mean COWS score of 20.1 (±6.1)
- 20 minutes post-placement: Mean COWS score reduced to 7.5 (±5.9), a 62.7% reduction (p
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