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Transcutaneous Electrical Nerve Stimulation (Program 2, 3, 4, 6, 8, 9): To be used for temporary relief of pain associated with sore and aching muscles in the shoulder, waist, back, upper extremities (arm), and lower extremities (leg) due to strain from exercise or normal household work activities. Powered Muscle Stimulation (Program 1, 5, 7, 10, 11, 12): It is intended to be used to stimulate healthy muscles in order to improve and facilitate muscle performance.

MHD TENS is portable and DC 3.7V battery powered device, offering both transcutaneous electrical nerve stimulator (TENS) and powered muscle stimulator (PMS) qualities in one device. MHD TENS has 12 operation programs, which can give certain electrical pulses through electrode adhesive pads to the suggested area of the body where the electrodes are placed. The electronic stimulatory module has the operating elements of Switch, LCD Display screen, Screen lock key, Intensity Modification keys, Timing key, Output sockets, and USB port for battery charging. The LCD screen can display treatment remaining time, battery power, selected program, output port, current intensity, selected intensity and lock state. The device is equipped with accessories of electrode pads, electrode cables, a screen stylus, a battery charger and a USB cable. The electrode cables are used to connect the pads to the device; the USB cable is used to connect the AC charger and the built-in lithium battery. The screen stylus is used to touch and operate the display screen. All accessories, including the USB cable, electrode pads, electrode cables, and the charger can only be replaced by the electrodes are interchangeable. The application area of electrode pads must be larger than 12cm². The electrode pads are provided by Shenzhen Mailuokang Technology Co., Ltd. with 510(k) cleared Number K152815.

This FDA 510(k) summary describes the MHD TENS device and establishes its substantial equivalence to a predicate device (K143268). The provided document does not contain information about a study proving the device meets acceptance criteria in the manner typically expected for AI/ML device performance (e.g., clinical study with human readers, ground truth establishment, etc.). This is because the MHD TENS is a physical electrical stimulation device, not an AI/ML diagnostic or therapeutic system.

Instead, the "acceptance criteria" for a device like the MHD TENS are compliance with recognized electrical safety and performance standards, and comparison with a legally marketed predicate device to demonstrate substantial equivalence. The "study" proving it meets these "acceptance criteria" consists of engineering tests and comparisons to the predicate.

Here's the information extracted and formatted, noting where AI/ML-specific criteria are not applicable:

Acceptance Criteria and Device Performance for MHD TENS

Device Name: MHD TENS
510(k) Number: K190115
Predicate Device: K143268

1. Table of Acceptance Criteria (as indicated by comparison to predicate and safety standards) and Reported Device Performance

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To be used for temporary relief of pain associated with sore and aching muscles in the shoulder, waist, back, arm, leg and foot, due to strain from exercise or normal household and work activities

The Low-Frequency Therapy Instrument is a product that adopts modern electronic science and technology to produce low-frequency electrical pulse and transmit that through the skin to the underlying peripheral nerves by electrodes, in order to reach the therapeutic aim.

There are three models of Low-Frequency Therapy Instrument which are KTR-201, KTR-202, KTR-203. Their technical parameters are slightly different, but they share the basically same characteristics: 1) They are small, and exquisite; 2) they have different treatment modes which can satisfy various demands, thus can be used by a wider range of people; 3) LCD display with a big screen makes the operation easy and clear, and the contents displayed on LCD can guide the treatment.

The Low-Frequency Therapy Instrument is mainly composed of the host and electrode patches and it uses AAA batteries for power supply. To start therapy, first insert batteries, then paste the electrode patches onto treatment areas and press power button to turn the power on. The modes and intensity can be selected according to needs. The current status is displayed on LCD.

This FDA 510(k) submission describes the "Low-Frequency Therapy Instrument" (Models: KTR-201, KTR-202, KTR-203), a Transcutaneous Electrical Nerve Stimulator (TENS) for pain relief.

Here's an analysis of the acceptance criteria and supporting studies based on the provided document:

1. Table of Acceptance Criteria and Reported Device Performance

The document does not explicitly present a table of acceptance criteria with corresponding performance metrics. Instead, the acceptance is implied by demonstrating substantial equivalence to a predicate device (Shenzhen OSTO Technology Company Limited's Health Expert Electronic Stimulator, Model AST-300C and AST-300D, K133929) and compliance with relevant voluntary standards.

The "Technological characteristics and substantial equivalence" table (pages 5-6) serves as the core comparison for "performance." Key metrics and their comparison to the predicate are:

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