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Neurodyn Multiwave - Indications for Use:
As a FES device:

• Stimulation of the muscles in the leg and ankle of partially paralyzed patients to provide flexion of the foot and thus improve the patient's gait.
  As a TENS device:
• Symptomatic relief of chronic (long term) intractable pain
• Symptomatic relief of post-traumatic acute pain and post-surgical pain
  As an Interferential and Premodulated device:
• Symptomatic relief of chronic intractable pain, acute post traumatic pain, or acute post traumatic surgical pain
  As a Russian device:
• Temporary relaxation of muscle spasms
• Prevention or retardation of disuse atrophy in post-injury type conditions
• Increase local blood circulation
• Muscle re-education
• Maintaining or increasing range of motion
  As a Burst Modulated Alternating Current (Aussie) device:
• Temporary relaxation of muscle spasms
• Prevention or retardation of disuse atrophy in post-injury type conditions
• Increase local blood circulation
• Muscle re-education
• Maintaining or increasing range of motion
• Symptomatic relief of chronic intractable pain, acute post traumatic pain, or acute post traumatic surgical pain
  As a Microcurrent device:
• Symptomatic relief of chronic intractable pain
• Symptomatic relief of post-traumatic acute pain and post surgical pain
  As a DC/Polarized device:
• Relaxation of Muscle Spasm

Aussie Sport - Indications for Use:
As an Burst Modulated Alternating Current (Aussie) device:

• Temporary relaxation of muscle spasms
• Prevention or retardation of disuse atrophy in post-injury type conditions
• Increase local blood circulation
• Muscle re-education
• Maintaining or increasing range of motion
• Symptomatic relief of chronic intractable pain, acute post traumatic pain, or acute post traumatic surgical pain

Neurodyn Multiwave and Aussie Sport Neuromuscular Stimulators are intended for the treatment of, relief of chronic (long term) intractable pain as adjunctive treatment of post-surgical and post-traumatic acute pain. Both devices have the same intended uses and incorporate the same technologies as the following predicate devices: Vectra Genisys K031077, Neurodyn/Neurpdun Aussie K121369 and 400PV Complete K021100.

The Neurodyn Multiwave Muscle Stimulator is a programmable device. It comes equipped with 5 preset clinical programs along with 10 user programs are adjustable and can be changed according to the patient's needs, doctor's recommendations and prescription settings.

The Aussie Sport Muscle Stimulator has four output channels with independent intensity controls. Thus, four different areas can be stimulated separately or together during a therapy session. It is adjustable and can be changed according to the patient's needs, doctor's recommendations and prescription settings. It generates the medium frequency alternate current(MFAC), burst modulated alternating current (Aussie)- type of sinusoidal current with a frequency carrying 1,000 Hz or 4,000 Hz and a burst duration of 4 ms or 2 ms, modulated in pulse trains (bursts) with a variable frequency from 1 to 120Hz.

The provided document is a 510(k) Summary for the Neurodyn Multiwave and Aussie Sport powered muscle stimulators. It focuses on demonstrating substantial equivalence to previously cleared predicate devices rather than presenting a study with specific acceptance criteria and performance metrics for the device itself.

Therefore, the following information cannot be extracted from the document:

1. A table of acceptance criteria and the reported device performance: The document does not define specific performance acceptance criteria for the Neurodyn Multiwave or Aussie Sport devices, nor does it report their performance against such criteria. Instead, it relies on demonstrating that the device characteristics are "identical" to predicate devices.
2. Sample size used for the test set and the data provenance: No test set or associated data provenance is mentioned.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts: No experts or ground truth establishment are discussed.
4. Adjudication method for the test set: No adjudication method is mentioned as there is no test set described.
5. If a multi reader multi case (MRMC) comparative effectiveness study was done, an effect size of how much human readers improve with AI vs without AI assistance: No MRMC study or AI assistance is mentioned.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done: No standalone algorithm performance is discussed.
7. The type of ground truth used: No ground truth is specified.
8. The sample size for the training set: No training set is mentioned.
9. How the ground truth for the training set was established: No training set or ground truth establishment is discussed.

Summary of Device Comparison (as provided in the document - not an acceptance criteria table):

The document provides a "Device Comparison Table" to show substantial equivalence, not to present acceptance criteria and performance. The key points from this table are:

Conclusion: The 510(k) summary concludes that the Neurodyn Muscle Stimulators are substantially equivalent to the predicate devices based on similarities in indications for use, technological design, materials, and various performance characteristics. The argument made is that because the new devices are "identical" or sufficiently similar to cleared predicate devices, they do not raise new issues of safety or effectiveness. No specific study demonstrating the new device's performance against defined acceptance criteria is presented.

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