K Number
K252236
Date Cleared
2025-08-15

(29 days)

Product Code
Regulation Number
882.5890
Panel
NE
Reference & Predicate Devices
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
Intended Use

As a TENS device, the CP Relief Wand Rx - TENS/NMES is intended for use as an adjunctive therapy for pain management for medical purposes such as symptomatic relief of chronic intractable pain and relief of acute post surgical and post-traumatic pain.

As an EMS device, the CP Relief Wand Rx - TENS/NMES is intended for use for relaxation of muscle spasm, increasing local blood circulation, muscle re-education, prevention or retardation of disuse atrophy, prevention of venous thrombosis of the calf muscles immediately after surgery, and maintaining on increasing range of motion.

Device Description

The CP Relief Wand Rx - TENS/NMES®("Wand") is a multitherapy medical device that combines the treatment capabilities of TENS (Transcutaneous Electrical Nerve Stimulation) and EMS (Electrical Muscular Stimulation).

The CP Relief Wand Rx - TENS/NMES is portable with self-contained electrodes. The device is powered by a standard non-rechargeable 9-volt alkaline battery. A charger is not used due to the low current drain and long battery life of the low power circuitry.

In operation, the electrode end of the CP Relief Wand Rx - TENS/NMES is positioned to touch the skin. The electrical pulses travel from one electrode, through the skin, through the underlying tissue, and back through the skin to the other electrode. Controls on the unit are provided for power, intensity, pulse width, and pulse polarity.

AI/ML Overview

This FDA 510(k) clearance letter pertains to a TENS/NMES device, not an AI/ML-driven medical device. Therefore, the information typically found in a study proving an AI/ML device meets acceptance criteria (such as performance metrics, sample sizes for test/training sets, expert qualifications, and ground truth establishment) is not present in this document.

The document discusses the substantial equivalence of the "CP Relief Wand Rx - TENS/NMES" to predicate devices based on regulatory parameters, specifications, and the leveraging of performance testing from the primary predicate. It does not describe a new study specifically designed to assess the performance of the device against acceptance criteria in the context of an AI/ML model.

Therefore, I cannot provide the requested information for acceptance criteria and study details as they relate to an AI/ML device, as this document does not contain that type of data.

The document primarily focuses on:

  • Substantial Equivalence: Arguing that the new device is as safe and effective as previously cleared devices.
  • Expansion of Indications for Use: Adding EMS functionality, which is justified by comparison to a second predicate device that already has EMS indications.
  • Performance Data (Leveraged from Predicate): Citing existing standards compliance from the primary predicate device, rather than new performance studies on an AI/ML algorithm.

If you have a document describing an AI/ML device and its validation study, I would be happy to analyze it for the requested information.

§ 882.5890 Transcutaneous electrical nerve stimulator for pain relief.

(a)
Identification. A transcutaneous electrical nerve stimulator for pain relief is a device used to apply an electrical current to electrodes on a patient's skin to treat pain.(b)
Classification. Class II (performance standards).