# Stimulator, Intramuscular, Automatic
> **Product code: NRW** · Class II — Moderate Risk (510(k) clearance required) · General Hospital · 21 CFR 880.5580
## Classification
- **FDA Product Code:** NRW
- **Device class:** Class II — Moderate Risk (510(k) clearance required)
- **Regulation:** 21 CFR 880.5580
- **Review panel:** HO
- **Medical specialty:** General Hospital
- **Submission type:** 1
- **GMP exempt:** N
- **Life sustaining:** N
- **Implant:** N
- **Third-party review:** Y
## Definition

The Automatic Intramuscular Stimulator is a device that aids muscle stimulation by using a method called dry needling for treatment.  The device consists of a main control unit, a hand-held motor unit, and an AC power supply adapter.  The motor unit has a mounted disposal syringe and a needle mounting hardware for a disposable needle, and enables the practitioner to administer treatment with less physical effort.   An EMG needle is used instead of an acupuncture needle because it is less flexible than the acupuncture needle

## Market data
- **Cleared 510(k) submissions:** 1
- **Registered establishments:** 0
## Source
- [FDA Device Classification](https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpcd/classification.cfm?ID=NRW)
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