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510(k) Data Aggregation
(120 days)
Shenzhen Dongdixin Technology Co., Ltd.
The ShockPhysio Mobile (model SW3200 Basic) is indicated for:
- Relief of minor muscle aches and pains
- Temporary increase in local blood circulation
- Activation of connective tissue
Not Found
This document is a 510(k) clearance letter from the FDA for a therapeutic massager, the "ShockPhysio Mobile (model SW3200 Basic)".
It does not contain any information regarding acceptance criteria, device performance, sample sizes, expert involvement, ground truth establishment, or specific study details like those expected for AI/software-based medical devices.
The letter explicitly states: "We have reviewed your section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976...". This indicates a substantial equivalence (SE) determination, which often relies on demonstrating that the new device is as safe and effective as a legally marketed predicate device, rather than requiring extensive de novo clinical trials or performance studies against specific acceptance criteria.
Therefore, I cannot provide the requested table and study information based on the provided text. The document is for a Class I Therapeutic Massager (a device with lower regulatory controls), and the FDA clearance process for such devices often focuses more on substantial equivalence to existing devices and adherence to general controls, rather than complex performance studies.
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(156 days)
Shenzhen Dongdixin Technology Co., Ltd.
NMES Relaxation of muscle spasms Prevention or retardation of disuse atrophy Increasing local blood circulation Muscle Re-education Immediate post-surgical stimulation of calf muscles to prevent venous thrombosis Maintaining or increasing range of motion
EMG Triggered Stimulation (ETS) (nonimplanted electrical continence device only) Acute and ongoing treatment of stress, urge or mixed urinary incontinence and where the following results may improve urinary control: Inhibition of the detrusor muscles through reflexive mechanisms of pelvic floor muscles Incontinence treatment for assessing EMG activity of the pelvic floor and accessory muscles (abdominal or gluteal)
TENS Symptomatic relief and management of chronic (long-term), intractable pain Adjunctive treatment in the management of post-surgical pain and post traumatic acute pain
EMG Biofeedback, relaxation muscle training and muscle re-education
Levator Elite(Model LE9011) is a single channel, hand-held, non-sterile, battery-powered, multi-patient device intended to be used by adult patients under the supervision of a trained clinical healthcare provider. The device contains EMG biofeedback, TENS (Transcutaneous Electrical Nerve Stimulation), ETS (EMG triggered stimulation) and NMES (Neuromuscular Electrical Stimulator). Each of them has pre-set and custom programs. The parameters of the device are controlled by the buttons, the levels of intensity are adjustable to the needs of the patient and treatments prescribed by their healthcare providers.
The device is designed to provide safe and effective electrical stimulation by sending small electrical currents to underlying nerves and muscle groups via electrode pads applied on the skin or through a vaginal probe/rectal probe (for incontinence treatment protocols only). It can be used with or without linkage to a PC. Connecting the device with the PC via USB cable, the data can be transmitted between PC and device (It needs purchase the PC software Nu-Tek System and USB connection cable).
For EMG biofeedback, EMG is for detecting the signal of muscle, which display muscle strength via EMG biofeedback bar graph or waveform format viewed on the LCD screen of the unit. Surface EMG is used for recording from superficial muscles in clinical or kinesiological protocols, where intramuscular electrodes are used for investigating deep muscles or localized muscle activity.
For NMES is the elicitation of muscle contraction using electric impulses. The impulses are generated by a device and delivered through the electrodes in direct proximity to the muscles to be stimulated or via the probe. The impulses mimic the action potential coming from the central nervous system, causing the muscles to contract. NMES is both a form of electrotherapy and of muscle training. Neuromuscular Stimulation has been used to stimulate muscle and nerve fibers for muscle strengthening, maintenance of muscle mass and strength during prolonged periods of immobilization, selective muscle retraining.
For ETS (i.e. EMG triggered stimulation), ETS involves initiating a voluntary contraction for a specific movement until the muscle activity reaches a threshold level. As soon as the EMG activity reaches a target threshold then an assisting electrical stimulus begins which helps to support the contracted muscle. A microprocessor connected to the surface electrodes, vaginal probe or rectal probe monitors the EMG activity levels as well as administers the neuromuscular stimulation. The target threshold could be set to automated regime, when it goes up and down depending on the running muscle performance.
For TENS, the device provides a non-invasive, low-risk nerve stimulation in order to reduce pain (both acute and chronic). In TENS, mild electrical impulses are transmitted through the skin via surface electrodes to relieve muscle pain by modifying the body's pain perception. TENS does not cure problematic physiological conditions: it only helps to control the pain perception.
LE9011 consists of the following elements:
- Main device
- Pedestal
- Lead wire
- Electrode pad
- Vaginal probe
- Rectal probe (optional)
- PC Software(optional)
- USB Cable(optional)
The provided text does not contain acceptance criteria or a study that proves the device meets acceptance criteria in the way typically expected for a medical device's clinical performance.
Instead, this document is a 510(k) Summary for a medical device (Levator Elite Model LE9011), which aims to demonstrate substantial equivalence to previously cleared predicate devices. The focus is on comparing the proposed device's technical characteristics, indications for use, and performance data (primarily non-clinical) to those of the predicate devices.
Here's a breakdown of what is and isn't present, based on your request:
What's missing that you asked for:
- Acceptance Criteria for clinical performance: The document does not specify quantitative clinical acceptance criteria (e.g., minimum sensitivity, specificity, accuracy, or specific thresholds for clinical improvement).
- Study Proving Device Meets Acceptance Criteria: There is no clinical study described that directly evaluates the device's performance against predefined clinical acceptance criteria.
- Reported Device Performance (against clinical criteria): Because there are no clinical acceptance criteria or clinical studies described, there's no reported device performance in those terms.
- Sample size for test set: No test set of patients/cases is described for clinical evaluation.
- Data provenance (country, retrospective/prospective): Not applicable as no clinical study is presented.
- Number of experts for ground truth & qualifications: Not applicable.
- Adjudication method for test set: Not applicable.
- Multi-reader multi-case (MRMC) comparative effectiveness study: Not mentioned or conducted.
- Effect size of human readers with/without AI assistance: Not applicable as it's not an AI-assisted diagnostic device and no MRMC study was done.
- Standalone (algorithm-only) performance: Not applicable as it's a physical electrical stimulator, not an algorithm-based diagnostic tool.
- Type of ground truth used: Not applicable as no clinical study is presented.
- Sample size for training set: Not applicable as it's not an AI/ML device that requires a training set in that context.
- How ground truth for training set was established: Not applicable.
What is provided regarding "Performance Data" in the 510(k) Summary (Section 6):
The "Performance Data" section focuses on non-clinical testing to ensure the device is safe and performs as intended, and that any technological differences from predicates do not raise new questions of safety or effectiveness.
-
Biocompatibility testing:
- Acceptance Criteria (implicit): Compliance with ISO 10993-1.
- Reported Performance: "The biocompatibility evaluation for the accessories (Electrode pad, Vaginal probe and Rectal probe) was conducted in accordance with the International Standard ISO 10993-1..."
- Tests Conducted: Cytotoxicity, Sensitization, Irritation.
- This is not a "study that proves" clinical effectiveness, but rather a demonstration of material safety.
-
Electrical safety and electromagnetic compatibility (EMC):
- Acceptance Criteria (implicit): Compliance with relevant IEC standards.
- Reported Performance: "The system complies with the IEC 60601-1, IEC60601-1-11 and IEC 60601-2-10 standards for safety and the IEC 60601-1-2 standard for EMC."
- This is technical performance testing, not clinical.
-
Software Verification and Validation Testing:
- Acceptance Criteria (implicit): Compliance with FDA's "Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices."
- Reported Performance: "Software verification and validation testing were conducted and documentation was provided as recommended by FDA's Guidance..." "The software for this device was considered as a 'Moderate' level of concern."
- This ensures the software functions correctly and safely, not clinical effectiveness.
-
Output waveform Testing:
- Acceptance Criteria (implicit): Verification of output specifications according to IEC 60601-2-10.
- Reported Performance: "oscilloscope tracing diagrams describing the electrical output waveform was provided to verify the output specifications of the device according to IEC 60601-2-10."
- This confirms the device delivers the specified electrical output, which is a technical performance aspect.
Conclusion from the document:
The document concludes that the device is substantially equivalent to the predicate devices and that any technological differences do not raise new questions regarding safety and effectiveness. This is the premise of a 510(k) submission – to demonstrate equivalence to an already cleared device, often without new clinical studies if non-clinical data suffice.
In summary, based only on the provided text, a comprehensive response to your structured request for acceptance criteria and clinical study details is not possible because the document focuses on non-clinical performance and substantial equivalence rather than a clinical trial demonstrating performance against specific clinical acceptance criteria.
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(129 days)
Shenzhen Dongdixin Technology Co., Ltd.
Migraine TENS Digital Pain Reliever LT1103
- The acute treatment of migraine with or without aura in patients 18 years of age or older.
- The prophylactic treatment of episodic migraine in patients 18 years of age or older.
Migraine TENS Digital Pain Reliever LT1103-P
- The prophylactic treatment of episodic migraine in patients 18 years of age or older.
The Migraine TENS Digital Pain Reliever is a neurostimulator that is applied to the forehead using a self-adhesive electrode positioned bilaterally over the supratrochlearis and supraorbitalis nerves. Supratrochlearis and supraorbitalis (or supratrochlear and supraorbital) nerves belong to the upper branch of the trigeminal nerve (V1). The device uses electric impulses that are delivered to the supratrochlearis and supraorbitalis nerves to prevent and treat pain in the head area.
The Migraine TENS Digital Pain Reliever is operated by a rechargeable battery. Pressure on the single button allows selecting and starting a stimulation program, which runs automatically. And during ramping up, users could choose comfortable intensity level by pressing the button to lock up the current intensity.
The Migraine TENS Digital Pain Reliever consists of the following elements:
- Main Device
- Charging Station
- Electrode Pads
- USB cable
This document is a 510(k) summary for the Migraine TENS Digital Pain Reliever. It describes the device and compares it to a predicate device (Cefaly® Dual) to demonstrate substantial equivalence.
Based on the provided text, here's what can be extracted regarding acceptance criteria and the study proving the device meets them:
This device is a TENS unit for migraine relief, not an AI/imaging diagnostic device. Therefore, many of the requested criteria (like ground truth, expert consensus, MRMC studies, effect size of human improvement with AI, standalone AI performance, training set details) are not applicable to this type of medical device submission.
The acceptance criteria here pertain to safety and performance equivalence with a legally marketed predicate device, rather than diagnostic accuracy or human-AI reader performance.
Here's a breakdown of the available information:
1. Table of Acceptance Criteria and Reported Device Performance
The document doesn't present a formal "acceptance criteria" table in the typical sense for AI/diagnostic devices. Instead, it demonstrates equivalence by comparing the technical specifications of the new device (Migraine TENS Digital Pain Reliever LT1103, LT1103-P) against the predicate device (Cefaly® Dual, K201895).
The "S.E. Discussion" column in the table below effectively serves as the "reported device performance" against the implicitly accepted predicate's performance.
Criterion (Comparison Point) | Acceptance Criteria (Implicit: Equivalence to Predicate) | Reported Device Performance (S.E. Discussion) |
---|---|---|
Intended Use | Equivalent to predicate device. | LT1103 is equivalent with predicate device. LT1103-P is covered by the predicate device (as it contains only one program for prophylactic treatment). |
Where Used | OTC | Equivalent |
Power Source | Rechargeable LiPo 3.7 V battery, N/A for line current isolation, patient leakage current info. | Equivalent |
Channels | 1; N/A for synchronous/alternating and channel isolation. | Equivalent |
Constant Current? | Yes | Yes (Equivalent) |
Constant Voltage? | No | No |
Software/Firmware/Microprocessor Control? | Yes, 2 fixed programs (acute and prophylactic) for LT1103. Yes, 1 fixed program (prophylactic) for LT1103-P. | LT1103 is equivalent with predicate device. LT1103-P has only one program, which is covered by the predicate device. |
Program 1 (Acute Treatment) Specifications (Max. output current, Pulse width, Pulse frequency, Session duration) | 16 mA, 250 µs, 100 Hz, 60 minutes | The program 1 of LT1103 is equivalent with predicate device, while LT1103-P does not have program 1. |
Program 2 (Prophylactic Treatment) Specifications (Max. output current, Pulse width, Pulse frequency, Session duration) | 16 mA, 250 µs, 60 Hz, 20 minutes | Equivalent |
Timer Range (minutes) | 20 minutes, 60 minutes | Equivalent |
Weight (grams.) | Comparable to predicate (12g for predicate) | Different (14g for new device), but passed testing according to IEC60601-1. |
Dimensions (mm) HWL | Comparable to predicate (55mm x 40mm x 15mm for predicate) | 41 mm x 41 mm x 13.4mm |
Housing Materials & Construction | Functionally equivalent, no new safety/effectiveness issues. | ABS+PC for Main device, ABS for Charging station. Difference does not raise any safety or effectiveness issue. |
Waveform | Biphasic | Equivalent |
Shape | Rectangular, Full compensated, Symmetrical | Equivalent |
Max Output Voltage (V) ±20% @ 500Ω, 2kΩ, 10kΩ | 8V, 32V, 60V, respectively | Equivalent for 500Ω (8V). 32V for 2kΩ, 60V for 10kΩ (Implied equivalent as it's not explicitly stated as different). |
Max Output Current (mA) ±20% @ 500Ω, 2kΩ, 10kΩ | 16mA, 16mA, 6mA, respectively | Equivalent for 500Ω (16mA). 16mA for 2kΩ, 6mA for 10kΩ (Implied equivalent as it's not explicitly stated as different). |
Pulse Width(usec) | 250 µs, fixed | Equivalent |
Frequency (Hz) | 60 Hz, fixed; 100 Hz, fixed | The frequency of LT1103 is equivalent with predicate device. LT1103-P has only one program, which is covered by the predicate device. |
Maximum Current Density (mA/cm², 500Ω) | 2.37 | Equivalent |
Maximum Average Power Density (W/cm²), 500Ω | 0.000047 for Program 1 / LT1103; 0.000017 for Program 2 / LT1103-P | Equivalent. The Maximum Average Power Density of LT1103 is equivalent with predicate device. IT1103-P has only one program, which is covered by the predicate device. |
Biocompatibility | Meet ISO 10993-1 for intact skin contact. | Testing included Cytotoxicity, Sensitization, Irritation. |
Electrical Safety and EMC | Comply with IEC 60601-1-11, IEC 60601-2-10, IEC 60601-1-2. | Testing conducted, complies with standards. |
Software Verification and Validation | Conducted as recommended by FDA guidance for "Moderate" level of concern. | Testing conducted. |
Output Waveform Testing | Verify output specifications per IEC 60601-2-10. | Oscilloscope tracing diagrams provided. |
Electrode Impedance and Current Distribution Testing | N/A (implicit: sufficient to support safe and effective operation). | Testing conducted on electrode. |
2. Sample Size Used for the Test Set and Data Provenance
This is not applicable as this is a TENS device, not an AI/imaging device that would use a test set of patient images or data in that context. The "testing" here refers to engineering and safety performance testing.
- Test Set Sample Size: Not applicable.
- Data Provenance: Not applicable. The "data" comes from engineering tests, not patient studies.
3. Number of Experts Used to Establish Ground Truth and Qualifications
Not applicable. "Ground truth" in the context of diagnostic accuracy is not relevant for this device. Safety and performance are established through objective engineering tests against international standards and comparison to a predicate device.
4. Adjudication Method for the Test Set
Not applicable. There is no concept of "adjudication" in the context of engineering and safety testing for a TENS device in this 510(k) summary.
5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance
Not applicable. This device is a treatment device, not a diagnostic AI device. Human "readers" are not involved in its primary function, nor is AI assistance relevant to its therapeutic mechanism.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
Not applicable. This is a physical medical device, not an algorithm. Its performance is inherent to its physical and electrical characteristics.
7. The Type of Ground Truth Used (Expert Consensus, Pathology, Outcomes Data, etc.)
Not applicable in the AI/diagnostic sense. The reference standard or "ground truth" for this submission are:
- International safety and performance standards (e.g., ISO 10993-1, IEC 60601 series).
- The established safe and effective performance of the predicate device (K201895 Cefaly® Dual).
8. The Sample Size for the Training Set
Not applicable. This device does not use machine learning or require a "training set."
9. How the Ground Truth for the Training Set was Established
Not applicable. There is no training set for this device.
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(136 days)
Shenzhen Dongdixin Technology Co.,Ltd.
The device is designed 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. And to be used for the symptomatic relief and management of chronic, intractable pain and relief of pain associated with arthritis.
The Wireless Pain Relieve Device includes TENS mode. Transcutaneous Electrical Nerve Stimulation (TENS) is a noninvasive, drug free method of controlling pain. TENS uses tiny electrical impulses sent through the skin to nerves to modify your pain perception. TENS does not cure any physiological problem; it only helps control the pain, this activates the underlying sensory nerves. For Transcutaneous Electrical Nerve Stimulation (TENS) Self-adhesive electrodes are placed on the skin close to the area of pain. The user can choose 23 pre-set TENS programs. In each program, the intensity can be adjusted. The Wireless Pain Relieve Device is controlled by means of an APP on a mobile device (phone or table) or remote control. The communication is done via Bluetooth Low Energy. The APP operates on iOS or Android platforms (iOS 8.0 or greater, Android 5.0 or greater).
This document is a 510(k) summary for the Wireless Pain Relieve Device, Model LT5011C, seeking substantial equivalence to a predicate device (Wireless Pain Relieve Device LT5018C). It does not contain information about a clinical study with acceptance criteria and device performance in the manner typically seen for clinical trials. Instead, it focuses on demonstrating substantial equivalence through comparison of technological characteristics and compliance with electrical safety, EMC, and software standards.
Therefore, many of the requested items (acceptance criteria, device performance from a clinical study, sample sizes, data provenance, expert ground truth, adjudication, MRMC study, standalone performance, and ground truth for training) cannot be extracted because this document describes a premarket notification for a Class II medical device based on substantial equivalence, not a detailed clinical study demonstrating new efficacy or performance.
However, I can extract information related to the technical performance and standards compliance tests performed to demonstrate safety and effectiveness for this type of device.
Here's a summary of the available information:
1. Table of acceptance criteria and the reported device performance (based on technical specifications and safety/EMC standards):
Acceptance Criteria (based on standards/predicate) | Reported Device Performance (LT5011C) |
---|---|
Electrical Safety (IEC 60601-1, IEC 60601-1-11, IEC 60601-2-10): | Compliant |
Patient Leakage Current (Normal Condition) | 0 uA (Same as predicate) |
Patient Leakage Current (Single Fault Condition) | 2.0 uA (Same as predicate) |
Average DC current through electrodes (device on, no pulses) | 0 (Same as predicate) |
Method of Channel Isolation | By Electrical Circuit and Software (Evaluated and passed IEC60601-1) |
Automatic Overload Trip | Yes (Same as predicate) |
Automatic No Load contact Trip | Yes (Same as predicate) |
Automatic Shut off | Yes (Same as predicate) |
Electromagnetic Compatibility (EMC) (IEC 60601-1-2, FCC Part 15 Subpart C): | Compliant |
Output Waveform Specifications (IEC 60601-2-10): | Verified via oscilloscope tracing diagrams to meet specifications |
Max Output Voltage (V) ±20% (at 500Ω) | 30.5V (Similar to predicate 31V, evaluated and passed IEC60601-2-10) |
Max Output Voltage (V) ±20% (at 2kΩ) | 65V (Similar to predicate 66V, evaluated and passed IEC60601-2-10) |
Max Output Voltage (V) ±20% (at 10kΩ) | 65V (Similar to predicate 66V, evaluated and passed IEC60601-2-10) |
Pulse Duration (µsec) | 100 |
Frequency (Hz) | 2~100Hz (Same as predicate) |
Maximum Phase Charge (uC) 500Ω | 24 uC (Similar to predicate 31 uC, evaluated and passed IEC60601-2-10) |
Maximum Current Density 500Ω | 0.295mA/cm² (Similar to predicate 0.48mA/cm², evaluated and passed IEC60601-2-10) |
Maximum Average Current (average absolute value), mA, 500Ω | 1.2mA (Same as predicate) |
Maximum Average Power Density, (mW/cm²).500Ω | 1.74 mW/cm² (Similar to predicate 2.88 mW/cm², evaluated and passed IEC60601-2-10) |
Biocompatibility (ISO10993-5/10): | The materials (electrodes, enclosure) are the same as the predicate device (K173462), which already received 510(k) clearance and was presumably tested for biocompatibility. No new biocompatibility testing was performed for LT5011C. |
Software Verification and Validation (IEC 62304, FDA Guidance for Industry and FDA Staff, "Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices"): | Compliant; Software considered "Moderate" level of concern. Verification and validation testing conducted and documentation provided. |
2. Sample size used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective):
Not applicable. This submission relies on technical testing and comparisons to a predicate device, not a clinical study involving patients or a test set of data in the sense of AI/ML evaluation.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g. radiologist with 10 years of experience):
Not applicable. No ground truth establishment by experts for a test set is mentioned. The assessment is based on compliance with established engineering and safety standards.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set:
Not applicable. No adjudication method for a test set is mentioned.
5. If a multi-reader multi-case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance:
Not applicable. This device is a Transcutaneous Electrical Nerve Stimulator (TENS) for pain relief, not an AI-assisted diagnostic or interpretive system. Therefore, no MRMC study or AI assistance is relevant.
6. If a standalone (i.e. algorithm only without human-in-the loop performance) was done:
Not applicable. This is not an AI/algorithm-only device. Its performance is assessed through its electrical output characteristics and safety features.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc):
Not applicable. The "ground truth" here is adherence to engineering specifications and international safety standards (IEC 60601 series, ISO 10993).
8. The sample size for the training set:
Not applicable. There is no training set in the context of an AI/ML device.
9. How the ground truth for the training set was established:
Not applicable.
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(304 days)
Shenzhen Dongdixin Technology Co., Ltd
The device is intended to provide electrical stimulation and neuromuscular re-education for the purpose of rehabilitation of weak pelvic floor muscles for the treatment of stress, urge and mixed urinary incontinence in women and to maintain urinary continence in women.
Incontinence Treatment Device, Model LT2061
I am sorry, but the provided text does not contain any information about acceptance criteria or a study proving that a device meets acceptance criteria. The document is an FDA 510(k) clearance letter for the "Incontinence Treatment Device, Model LT2061," stating that the device is substantially equivalent to legally marketed predicate devices.
The text describes:
- The FDA's review and determination of substantial equivalence.
- Regulatory requirements that the device manufacturer must comply with (e.g., registration, listing, labeling, quality systems, medical device reporting).
- Indications for Use for the device.
- Contact information for FDA resources.
It does not include:
- A table of acceptance criteria and reported device performance.
- Details about a study design, sample sizes, data provenance, or ground truth establishment.
- Information on expert panels, adjudication methods, or MRMC studies.
- Any performance metrics or statistical results.
Therefore, I cannot fulfill your request to describe the acceptance criteria and the study that proves the device meets the acceptance criteria based on the provided input.
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(30 days)
Shenzhen Dongdixin Technology Co.,Ltd.
TENS: The device is designed to be used for temporary relief of pain associated with sore and aching muscles in the shoulder, waist, back, neck, upper extremities(arm) and lower extremities (leg) due to strain from exercise or normal household work activities. And to be used for the symptomatic relief and management of chronic, intractable pain and relief of pain associated with arthritis.
EMS: The device is designed to be used for stimulate healthy muscles in order to improve and facilitate muscle performance.
The Wireless Pain Relieve Device includes TENS, EMS (including MASSAGE Program) mode. Transcutaneous Electrical Nerve Stimulation (TENS) is a noninvasive, drug free method of controlling pain. EMS works by sending electronic pulses to the muscle needing treatment; this causes the muscle to exercise passively. The Wireless Pain Relieve Device is controlled by means of an APP on a mobile device (phone or table) and remote control. The communication is done via Bluetooth Low Energy. The APP operates on IOS and Android platforms (IOS 8.0 or greater, Android 5.0 or greater).
The provided text describes the 510(k) summary for the Wireless Pain Relieve Device, Model LT5018C, and its comparison to a predicate device (Smart Pain Reliever LT5019). It doesn't detail a study to prove acceptance criteria in the typical sense for assessing diagnostic or prognostic performance (e.g., sensitivity, specificity, AUC). Instead, the "acceptance criteria" are related to established safety and performance standards for electrotherapy devices, and the "study" is a series of engineering tests and comparisons to the predicate device.
Here's an analysis based on the provided document:
1. Table of Acceptance Criteria and Reported Device Performance
The acceptance criteria here are compliance with recognized electrical safety, electromagnetic compatibility (EMC), and software standards, as well as maintaining similar output specifications to a predicate device.
Acceptance Criterion (Standard or Characteristic) | Reported Device Performance (Wireless Pain Relieve Device, LT5018C) |
---|---|
Electrical Safety (IEC 60601-1, IEC 60601-1-11) | Complies |
Specific Safety for TENS/EMS (IEC 60601-2-10) | Complies. Evaluated and passed tests. |
Electromagnetic Compatibility (IEC 60601-1-2) | Complies |
FCC Part 15 C (Radio Frequency Devices) | Complies |
Software Verification & Validation (FDA Guidance "Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices" and IEC 62304) | Conducted and documentation provided. "Moderate" level of concern. |
TENS Mode Output Specifications | (Compared to Predicate LT5019) |
Waveform | Biphasic (Same) |
Shape | Rectangular (Same) |
Max Output Voltage (500Ω) | 31V (Similar to 31.2V, passed IEC60601-2-10) |
Max Output Voltage (2kΩ) | 66V (Similar to 69.6V, passed IEC60601-2-10) |
Max Output Voltage (10kΩ) | 66V (Similar to 69.6V, passed IEC60601-2-10) |
Pulse Duration | 150-250µs (Same) |
Frequency | 2-100Hz (Same) |
Max Phase Charge (500Ω) | 31µC (Similar to 30µC, passed IEC60601-2-10) |
Max Current Density (500Ω) | 0.48mA/cm² (Similar to 0.32mA/cm², passed IEC60601-2-10) |
Max Average Current (500Ω) | 1.2mA (Same) |
Max Average Power Density (500Ω) | 2.88 mW/cm² (Similar to 1.9 mW/cm², far lower than 250mW/cm² FDA guidance for Powered Muscle Stimulator) |
EMS Mode Output Specifications | (Compared to Predicate LT5019) |
Waveform | Biphasic (Same) |
Shape | Rectangular (Same) |
Max Output Voltage (500Ω) | 31V (Similar to 31.2V, passed IEC60601-2-10) |
Max Output Voltage (2kΩ) | 66V (Same as 66V) |
Max Output Voltage (10kΩ) | 66V (Similar to 69.6V, passed IEC60601-2-10) |
Pulse Duration | 200-370µs (Same) |
Frequency | 3-55 Hz (Similar to 3-75Hz, passed IEC60601-2-10) |
Max Phase Charge (500Ω) | 44.4µC (Similar to 24µC, passed IEC60601-2-10) |
Max Current Density (500Ω) | 0.484mA/cm² (Similar to 0.248mA/cm², passed IEC60601-2-10) |
Max Average Current (500Ω) | 1.22mA (Similar to 0.72mA) |
Max Average Power Density (500Ω) | 2.93 mW/cm² (Similar to 1.2 mW/cm², far lower than 250mW/cm² FDA guidance for Powered Muscle Stimulator) |
MASSAGE Program Output Specifications | (Compared to Predicate LT5019) |
Pulse Duration | 50-250µs (Similar to 250µs, passed IEC60601-2-10) |
Frequency | 2-90Hz (Similar to 10-80Hz, passed IEC60601-2-10) |
2. Sample Size Used for the Test Set and Data Provenance
This document describes technical performance testing rather than clinical study. Thus, concepts of "test set" sample size and data provenance (country of origin, retrospective/prospective) are not directly applicable in the way they would be for a diagnostic AI device.
- Test Set: The "test set" consisted of the physical device (Model LT5018C) undergoing various engineering tests (biocompatibility, electrical safety, EMC, software).
- Data Provenance: The tests are standard engineering evaluations of the device's hardware and software against recognized international standards. The provenance is from the manufacturer's testing or test labs conducting these certification tests.
3. Number of Experts Used to Establish the Ground Truth for the Test Set and Qualifications
Not applicable. Ground truth, in this context, is adherence to technical standards and the specifications of the predicate device, which is determined by testing against predefined objective criteria rather than expert interpretation of data.
4. Adjudication Method for the Test Set
Not applicable. The "test set" here refers to the device being tested against technical standards, not a set of cases requiring adjudication for ground truth.
5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance?
Not applicable. This device is a Transcutaneous Electrical Nerve Stimulator (TENS) and Electrical Muscle Stimulator (EMS) for pain relief and muscle conditioning. It is not an AI-assisted diagnostic or prognostic device that would involve human readers interpreting cases.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
This refers to the device's function as a TENS/EMS unit. The device operates independently (albeit controlled by an app or remote control) to deliver electrical stimulation. The performance measured is its adherence to output specifications and safety standards, both of which are "standalone" in the sense that they assess the device's intrinsic characteristics. The regulatory submission primarily focuses on the device's adherence to these standards and its substantial equivalence to a legally marketed predicate via bench testing and comparison of technical specifications.
7. The Type of Ground Truth Used
The "ground truth" for this submission is:
- Compliance with recognized international standards: IEC 60601-1, IEC 60601-1-11, IEC 60601-2-10, IEC 60601-1-2, IEC 62304.
- Demonstrated performance within acceptable ranges: As compared to the predicate device (Smart Pain Reliever LT5019), and often also against general FDA guidance for Powered Muscle Stimulators (e.g., maximum average power density
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Shenzhen Dongdixin Technology Co., Ltd.
Combo Stimulator MT9000
For TENS/IF/MIC mode
- Symptomatic relief of chronic intractable pain
- Post traumatic pain
- Post surgical pain
For EMS mode - Relaxation of muscle spasm.
- Increase of local blood flow circulation
- Prevention or retardation of disuse atrophy
- Muscle re-education
- Maintaining or increasing range of motion.
- Immediate post-surgical stimulation of calf muscles to prevent venous thrombosis
Combo Stimulator LT7102
For TENS/IF/MIC mode
- Symptomatic relief of chronic intractable pain
- Post traumatic pain
- Post surgical pain
For EMS/RUSS mode - Relaxation of muscle spasm.
- Increase of local blood flow circulation
- Prevention or retardation of disuse atrophy
- Muscle re-education
- Maintaining or increasing range of motion.
- Immediate post-surgical stimulation of muscles to prevent venous thrombosis
TENS Stimulator Intensity 10
- Symptomatic relief of chronic intractable pain
- Post traumatic pain
- Post surgical pain
MT9000, LT7102 and Intensity 10 are Transcutaneous Electrical Nerve Stimulator and muscle stimulator for pain relief and/or Electrical Muscle Stimulator sends gentle electrical current to underlying nerves and muscle group via electrode applied on the skin. The parameters of units are controlled by the press buttons. Its intensity level is adjustable according to the needs of patients.
The 3 models MT9000, LT7102 and Intensity 10 have similar housing with a viewable LCD display, an accessible keypad, and accessible battery storage compartment. The LCD is located on the upper half of the rectangular face of the device, above the keypad. The LCD is used to display system information to the user.
The provided document is a 510(k) Summary for medical devices (stimulators) and does not contain information about acceptance criteria or a study proving device performance against such criteria for AI/ML-driven diagnostic devices.
The document details the substantial equivalence of new stimulator models (Combo Stimulator MT9000, Combo Stimulator LT7102, TENS Stimulator InTENSity 10) to previously marketed predicate devices. The "performance data" section covers biocompatibility, electrical safety, EMC, and software verification/validation, which are typical for this type of medical device submission, but do not involve acceptance criteria or studies related to AI/ML diagnostic performance metrics like sensitivity, specificity, or reader studies.
Therefore, I cannot provide the requested information, specifically:
- A table of acceptance criteria and reported device performance (for AI/ML diagnostic context)
- Sample size for the test set and data provenance
- Number of experts and qualifications for ground truth establishment
- Adjudication method
- MRMC comparative effectiveness study details (effect size)
- Standalone (algorithm only) performance
- Type of ground truth used
- Sample size for the training set
- Ground truth establishment for the training set
The document is primarily focused on demonstrating that the new devices have the "same intended use and technological characteristics" as existing devices, and that changes do not affect safety or effectiveness, as confirmed by regulatory compliance testing (e.g., IEC standards).
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(155 days)
SHENZHEN DONGDIXIN TECHNOLOGY CO., LTD.
TENS: The device is designed to be used for temporary relief of pain associated with sore and aching muscles in the shoulder, waist, back, neck, upper extremities(arm) and lower extremities (leg) due to strain from exercise or normal household work activities. And to be used for the symptomatic relief and management of chronic, intractable pain and relief of pain associated with arthritis.
EMS: The device is designed to be used for stimulate healthy muscles in order to improve and facilitate muscle performance.
LT5019 is designed to be used at home, by adults of all genders. The Smart Pain Reliever includes TENS, EMS (including MASSAGE Program). Transcutaneous Electrical Nerve Stimulation (TENS) is a noninvasive, drug free method of controlling pain. EMS works by sending electronic pulses to the muscle needing treatment; this causes the muscle to exercise passively. The Smart Pain Reliever device is controlled by means of an APP on a mobile device (phone or table). The communication is done via Bluetooth Low Energy. The APP operates on IOS and Android platforms (IOS 8.0 or greater, Android 5.0 or greater).
The provided text describes the 510(k) summary for the "Smart Pain Reliever, Model LT5019," a Transcutaneous Electrical Nerve Stimulator (TENS) and Electrical Muscle Stimulator (EMS). This document aims to demonstrate substantial equivalence to legally marketed predicate devices, not to prove the device meets specific acceptance criteria related to its clinical effectiveness with an AI component or analysis of diagnostic performance.
Therefore, many of the requested details about acceptance criteria for AI/diagnostic performance, sample sizes for test/training sets, expert consensus, adjudication methods, MRMC studies, standalone performance, and ground truth establishment (which are typical for AI/diagnostic device studies proving clinical utility) are not present in this regulatory submission document.
This document focuses on:
- Technological equivalence: Comparing the technical specifications (e.g., waveform, pulse duration, frequency, power source) of the new device to predicate devices.
- Compliance with safety standards: Demonstrating that the device meets relevant electrical safety, electromagnetic compatibility (EMC), biocompatibility, software verification/validation, and usability standards.
Here's what can be extracted from the provided text regarding device performance and criteria based on the regulatory context:
Acceptance Criteria and Reported Device Performance (as inferred from a 510(k) for a TENS/EMS device)
For this type of device, "acceptance criteria" are primarily related to meeting established electrical and safety performance specifications and demonstrating that these specifications are either equivalent to predicate devices or fall within accepted physiological/safety limits. The performance "reported" is primarily in the form of meeting these technical specifications rather than clinical diagnostic metrics.
Table of Acceptance Criteria and Reported Device Performance (as relevant for a TENS/EMS device):
Criterion Category | Specific Acceptance Criterion (Inferred from regulatory requirements for TENS/EMS) | Reported Device Performance / Compliance Status |
---|---|---|
Electrical Output (TENS Mode) | Waveform: Biphasic | Biphasic (Same as predicate for Waveform) |
Shape: Rectangular | Rectangular (Same as predicate for Shape) | |
Max Output Voltage (500Ω): Within acceptable range | 31.2V (Similar to predicates 31V, 30V) | |
Pulse Duration (usec): Within acceptable range | 150 | |
Frequency (Hz): Within acceptable range | 2 | |
Max Phase Charge (500Ω): Within acceptable range | 30 uC (Similar to predicates 1.6~6.8 uC, 13.2 uC) | |
Max Current Density (500Ω): Within acceptable range | 0.32 mA/cm² (Similar to predicates 0.002~0.045mA/cm², 0.1mA/cm²) | |
Max Average Current (500Ω): Within acceptable range | 1.2 mA (Similar to predicates 0.06~1.36 mA, 2.06 mA) | |
Max Average Power Density (500Ω): Within acceptable range | 1.9 mW/cm² (Similar to predicates 0.24~1.69 mW/cm², 1.5 mW/cm²) | |
Electrical Output (EMS Mode) | Waveform: Biphasic | Biphasic (Same as predicate) |
Shape: Rectangular | Rectangular (Same as predicate) | |
Max Output Voltage (500Ω): Within acceptable range | 31.2V (Similar to predicate 31V) | |
Pulse Duration (usec): Within acceptable range | 200 | |
Frequency (Hz): Within acceptable range | 3 | |
Max Phase Charge (500Ω): Within acceptable range | 24 uC (Similar to predicate 4.7~10.9 uC) | |
Max Current Density (500Ω): Within acceptable range | 0.248 mA/cm² (Similar to predicate 0.019~0.037 mA/cm²) | |
Max Average Current (500Ω): Within acceptable range | 0.72 mA (Similar to predicate 0.47~0.93 mA) | |
Max Average Power Density (500Ω): Within acceptable range | 1.2 mW/cm² (Similar to predicate 0.62~1.15 mW/cm²) | |
Electrical Output (Massage Mode) | Waveform: Biphasic | Biphasic (Same as predicate) |
Shape: Rectangular | Rectangular (Same as predicate) | |
Max Output Voltage (500Ω): Within acceptable range | 31.2V (Similar to predicate 60V) | |
Pulse Duration (usec): Within acceptable range | 250us (Similar to predicate 200~400us) | |
Frequency (Hz): Within acceptable range | 10 | |
Max Phase Charge (500Ω): Within acceptable range | 30 uC (Similar to predicate 48 uC) | |
Max Current Density (500Ω): Within acceptable range | 0.32 mA/cm² (Similar to predicate, not available for comparison but within acceptable norms) | |
Max Average Power Density (500Ω): Within acceptable range | 1.9 mW/cm² (Similar to predicate |
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(147 days)
Shenzhen Dongdixin Technology Co., Ltd.
The Non-contact Forehead Thermometer is a non-sterile, reusable clinical thermometer intended for the intermittent determination of human body temperature in a touch mode on the centre of the forehead as the measurement site on people of all ages.
The Non-contact Forehead Thermometer (Model TH1009N) is a hand-held, battery powered device designed to measure human body temperature. The TH1009N is a kind of medical device that utilize infrared radiation to measure body temperature. The Non-contact Forehead Thermometer is intended to measure forehead temperature.
The Non-contact Forehead Thermometer uses a thermopile sensor with integrated thermistor for the target reading, a thermistor mounted in the head of the thermometer for ambient temperature readings, and an infrared distance sensor for detection of contact or non-contact (at a distance of approximately 0-5cm) use and compensation of the temperature reading.
The provided document is a 510(k) Summary for a Non-contact Forehead Thermometer (Model TH1009N). Here's a breakdown of the acceptance criteria and the study that proves the device meets them, based on the information provided:
1. Table of acceptance criteria and the reported device performance
Criteria Category | Acceptance Criteria (Stated by standard or implicitly accepted by FDA) | Reported Device Performance (from the document) |
---|---|---|
Accuracy | ±0.2 °C (0.4°F) for 35.0°C (95.0°F)-42.0°C (107.6°F), ±0.3 °C (0.5°F) for other ranges (This matches the predicate's accuracy range in the comparison table, implicitly setting the acceptance criteria) | ±0.2 °C (0.4°F) for 35.0°C (95.0°F)-42.0°C (107.6°F), ±0.3 °C (0.5°F) for Other range |
Body Measuring Range | Wider than 34.4 - 42.2 °C (93.9 -108 °F) (Predicate's range, the subject device aims to meet or exceed relevant standards) | 32.0-42.9 °C (89.6-109.3°F) |
Ambient Range | Wider than 15 °C - 40°C (59.0°F-104.0°F) (Predicate's range, the subject device aims to meet or exceed relevant standards) | 5.0 °C-59.9°C (41.0°F-104°F) |
Operating Temperature | 15.0°C - 40.0°C (59.0°F - 104.0°F) with a relative humidity of 15%~85%, Atmosphere pressure: 700hPa-1060hPa | 15.0°C - 40.0°C (59.0°F - 104.0°F) with a relative humidity of 15%~85%, Atmosphere pressure: 700hPa-1060hPa |
Storage & Transport Temperature | Wider than -25 °C to 60 °C (-13 °F to 140 °F) Humidity: 15 - 95% non condensing, 700-1060hPA (0.7-1.06 atm) (Predicate's range, the subject device aims to meet or exceed relevant standards) | -20°C - 55°C (-4°F - 131°F) with a relative humidity of 15%~90%, Atmosphere pressure: 700hPa-1060hPa |
Electrical Safety | Compliance with IEC 60601-1:2005+A1:2012 and ISO 80601-2-56:2009 | "Results of these tests demonstrate compliance to the requirements..." for these standards. |
EMC | Compliance with IEC 60601-1-2:2007 | "Results of these tests demonstrate compliance to the requirements..." for this standard. |
Biocompatibility | Compliance with ISO 10993-5:2009 and ISO 10993-10:2010 | "Results of these tests demonstrate compliance to the requirements..." for these standards. |
Software Verification & Validation | Compliance with "Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices" (FDA guidance) and IEC 62304 for a "Moderate" level of concern. | "Software verification and validation testing were conducted and documentation was provided as recommended by FDA's Guidance... IEC 62304 was followed." |
2. Sample size used for the test set and the data provenance
- Sample Size: Not explicitly stated for the clinical evaluation. The document mentions a "clinical evaluation..." conducted in compliance with ASTM E1965-98. ASTM E1965-98 specifies the clinical accuracy requirements for infrared thermometers (e.g., in Section 8), which typically involves a minimum number of subjects (e.g., 50 subjects for clinical accuracy studies, as per older versions of similar standards, but the exact number isn't in this document).
- Data Provenance: The "Clinical evaluation of Non-contact Forehead Thermometer was conducted by Shenzhen Dongdixin Technology Co., Ltd". This implies the study was conducted by the manufacturer, likely in China. The document does not specify if the data was retrospective or prospective, but clinical evaluations are typically prospective.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts
- This information is not provided in the document. For thermometer accuracy, "ground truth" is typically established by comparing the device reading against a highly accurate reference thermometer (e.g., an oral or rectal thermometer with known accuracy, or a blackbody simulator), rather than expert interpretation.
4. Adjudication method for the test set
- This information is not applicable and therefore not provided, as the ground truth for thermometer accuracy is typically a direct measurement from a reference device, not an interpretation requiring adjudication.
5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance
- This is not applicable. This device is a non-contact forehead thermometer, not an AI-assisted diagnostic imaging or interpretation tool that would involve human readers.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
- This is not applicable in the context of "algorithm only" performance as commonly discussed for AI/ML devices. The device itself is standalone in that it provides a temperature reading without human interpretation for the result. Its "performance" is its accuracy.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.)
- For the clinical evaluation, the ground truth would be established by measurements from a highly accurate reference clinical thermometer (e.g., an oral or rectal thermometer) as specified by the ASTM E1965-98 standard. The document states the clinical evaluation was in compliance with this standard.
8. The sample size for the training set
- This information is not applicable and therefore not provided. The device described does not appear to involve machine learning or AI that would require a "training set" in the conventional sense. Its function is based on infrared sensing and internal algorithms, not on learning from a large dataset.
9. How the ground truth for the training set was established
- This information is not applicable as there is no mention of a training set for machine learning or AI algorithms within the provided documentation.
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(267 days)
SHENZHEN DONGDIXIN TECHNOLOGY CO, LTD.
Therapeutic Ultrasound
- Application of therapeutic deep heat for the treatment of selected sub-chronic medical conditions such as:
-
- Pain relief, muscle spasms and joint contractures.
-
- Relief of pain, muscle spasms and joint contractures that may be associated with:
- · Adhesive capsulitis
- Bursitis with slight calcification
- · Myositis
- · Soft tissue injuries
- · Shortened tendons due to past injuries and scar tissues
-
- Relief of sub-chronic, chronic pain and joint contractures resulting from:
- · Capsular tightness
- · Capsular scarring
For TENS, Interferential, premodulated(IFC), NMS and Microcurrent:
-
- Symptomatic relief of chronic intractable pain
-
- Post-traumatic acute pain
-
- Post-surgical acute pain
Additionally for NMS. NMS Burst, Hi-Volt and Russian:
-
- Relaxation of Muscle spasms
-
- Prevention or retardation of disuse atrophy
-
- Increasing local blood circulation
-
- Muscle re-education
-
- Maintaining or increasing range of motion
-
- Immediate postsurgical stimulation of calf muscles to prevent venous thrombosis
For EMG
- To determine the activation timing of muscles for:
-
- Retaining of muscle activation
-
- Coordination of muscle activation
An indication of the force produced by muscle for control and maintenance of muscle contractions
-
- Relaxation muscle training
-
- Muscle re-education
For EMG triggered Stim
-
- Stroke rehab by muscle re-education
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- Relaxation of muscle spasms
-
- Prevention or retardation of disuse atrophy
-
- Increase local blood circulation
-
- Muscle re-education
-
- Maintaining or increasing range of motion
For DC Continuous Mode
- Relaxation of muscle spasm 1)
ComboRehab is four channels combination unit, can provide muscle stimulation, ultrasound, biofeedback and combination therapy. This product is designed to offer a multiple choices for clinician in one compact and integrated package.
A large control knobs located on the panel, allows clinician very easy to select different therapy mode and set therapeutic parameters. The award winning design offers a 5 inch Touch TFT LCD color display screen that can helps clinician to monitor the treatment information promptly.
In the electrotherapy mode, it's freedom for clinician to select one, two, three or four channels into therapy. A comprehensive set of current waveforms is available, targeting both pain management and muscle stimulation applications; interferential (4-pole), premodulated (2-pole interferential), Russian, NMS (Pulsed mode, burst mode), high volt, TENS, Microcurrent and Direct current.
The Ultrasound mode can be equipped with two applicators, 1cm² and 5cm². The applicators can operate in continuous or pulsed mode at an ultrasound frequency of 1 MHz or 3 MHz.
The EMG mode can provide us detail information about the organ-specific properties of a muscle through surface EMG electrodes. EMG biofeedback activity can couple with triggered electrical muscle stimulation using selected electrotherapy waveforms for the maximum benefit in muscle re-education.
The combination electrotherapy is used for the management of pain and muscle spasm. All functions of 1 or 3 MHz Ultrasound can be combined with Interferrential, Premodulated, Asymmetrical Biphasic. NMS, NMS burst mode, and High Voltage pulsed Current.
I am sorry, but without specific test data or performance metrics for the ComboRehab device, I cannot fill in the table for acceptance criteria and reported device performance. The provided text outlines the device's indications for use and lists the non-clinical tests performed, along with the standards it conforms to, but it does not contain quantifiable performance data or specific acceptance criteria for those performances.
The document is a 510(k) summary, which focuses on demonstrating substantial equivalence to a predicate device rather than providing detailed performance studies that would typically include acceptance criteria and their fulfillment.
However, I can provide the other requested information based on the text:
1. A table of acceptance criteria and the reported device performance
Not available in the provided text. The document states that "Nonclinical testing was performed in order to validate the design according with the company's specified design requirements, and to assure conformance with the following voluntary design standards." However, the specific reported device performance against numerical acceptance criteria is not detailed. The non-clinical tests focused on safety and electromagnetic compatibility per international standards.
2. Sample sized used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective)
Not applicable/Not provided. The document explicitly states "ComboRehab did not conduct, nor rely upon, clinical tests to determine substantial equivalence." Therefore, there was no "test set" in the context of clinical data for performance evaluation as typically understood for AI/medical device assessment. The non-clinical tests performed were likely on device prototypes or production units, not on human subjects or clinical data sets.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g. radiologist with 10 years of experience)
Not applicable. As no clinical tests were performed, there was no ground truth to be established by experts.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set
Not applicable. As no clinical tests were performed, there was no need for an adjudication method.
5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance
Not applicable. No multi-reader, multi-case clinical studies were conducted, as explicitly stated in the document. The device is a physical therapy device, not an AI-assisted diagnostic tool for human readers.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
Not applicable. The device is a physical therapy unit that provides various modalities (ultrasound, muscle stimulation, biofeedback). It is not an algorithm-only device or an AI system that would have "standalone" performance in the sense of a diagnostic or interpretive algorithm. Its performance is inherent to its physical operation and energy delivery.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc)
Not applicable. For the non-clinical tests performed, "ground truth" would refer to the adherence of the device's output to engineering specifications and international safety standards (e.g., electrical safety, electromagnetic compatibility, output intensity measurements). This is established through laboratory measurements and calibration against known standards, not clinical "ground truth" like pathology or expert consensus.
8. The sample size for the training set
Not applicable. No training set was used, as the device is not an AI/machine learning system that requires data training.
9. How the ground truth for the training set was established
Not applicable. No training set was used.
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