# Stimulator, Nerve, Electrical, Percutaneous (Pens), For Pain Relief
> **Product code: NHI** · Class II — Moderate Risk (510(k) clearance required) · Neurology · 21 CFR 882.5890
## Classification
- **FDA Product Code:** NHI
- **Device class:** Class II — Moderate Risk (510(k) clearance required)
- **Regulation:** 21 CFR 882.5890
- **Review panel:** NE
- **Medical specialty:** Neurology
- **Submission type:** 1
- **GMP exempt:** N
- **Life sustaining:** N
- **Implant:** N
- **Third-party review:** Y
## Definition

Percutaneous electrical nerve stimulator (pens) is a device used for the treatment of pain.  Unlike the classified transcutaneous electrical nerve stimulator that apply an electrical current to electrodes on a patient's skin to deliver stimulation, a pens uses electrodes that are placed percutaneously to deliver stimulation,

## Market data
- **Cleared 510(k) submissions:** 13
- **Registered establishments:** 13
## Source
- [FDA Device Classification](https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpcd/classification.cfm?ID=NHI)
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