Indications for FES waveform: - Stimulation of the muscles in the leg and ankle of partially paralyzed patients to provide flexion of the patient's gait. Indications for TENS waveform: - Symptomatic relief of chronic (long term) intractable pain - Symptomatic relief of post-traumatic acute pain and post surgical pain Indications for Russian waveform: - 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
Device Story
Neurodyn II (4-channel) and Neurodyn Compact (2-channel) are powered muscle stimulators for clinical use. Devices deliver TENS, FES, and Russian (burst modulated medium frequency) waveforms to patients via electrodes. Operation involves user-selected parameters via mechanical keyboard and backlit graphic display. Output is controlled by microprocessor-based circuitry. Healthcare providers use these devices to manage pain, improve gait in paralyzed patients, and support physical therapy goals like muscle re-education and atrophy prevention. Benefits include non-invasive pain relief and functional muscle stimulation. Devices are housed in ABS cabinets with acrylic covers and operate on 100-240V power.
Clinical Evidence
Bench testing only. Compliance with IEC 60601-1 (general safety), IEC 60601-1-2 (EMC), IEC 60601-1-4 (programmable systems), and IEC 60601-2-10 (nerve/muscle stimulators) demonstrated. No clinical trial data provided.
Indicated for partially paralyzed patients (leg/ankle muscle stimulation for gait flexion); patients with chronic intractable pain, post-traumatic acute pain, or post-surgical pain; and patients requiring muscle spasm relaxation, atrophy prevention, circulation improvement, muscle re-education, or range of motion maintenance.
Regulatory Classification
Identification
A powered muscle stimulator is an electrically powered device intended for medical purposes that repeatedly contracts muscles by passing electrical currents through electrodes contacting the affected body area.
Predicate Devices
Neurodyn/Aussie Powered Muscle Stimulator by Ibramed (K121369)
300 PV Complete Electrotherapy System by EMPI (K021100)
Submission Summary (Full Text)
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Image /page/0/Picture/1 description: The image shows the logo for IBRAMED. The logo consists of the word "IBRAMED" in bold, sans-serif font, with a stylized symbol above it. The symbol is composed of three horizontal lines on the top and bottom, connected by a vertical line in the center, creating a symmetrical design. The logo is black and white.
510 (k) Number: K131917
Date of Submission: April 29, 2014
#### Submitter:
IBRAMED EQUIPAMENTOS MEDICOS Avenida Dr. Carlos Burgos 2800 Amparo - Sao Paulo - Brasil
TEL - 5519-3817-9633 FAX - 5519-7816-7980
#### Official Contact:
Tara Conrad TechLink International Consulting 18851 NE 29th Avenue Suite 720 Aventura, FL 33180
TEL - (305) 377-0077
| Common Name: | Powered Muscle Stimulator |
|--------------------------|----------------------------------------|
| Trade Name: | Neurodyn Compact; Neurodyn II |
| Classification: | Class II |
| Product Code: | GZJ; GZI; IPF |
| Classification Panel: | Neurology |
| Regulation Numbers: | 21 CFR 890.5850 |
| Substantial Equivalence: | K121369 Neurodyn/Aussie Powered Muscle |
| | Stimulator by Ibramed; K021100 300 PV |
| | Complete Electrotherapy System by EMPI |
#### Indications for Use
Indications for FES waveform:
- 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.
Indications for TENS waveform:
- Symptomatic relief of chronic (long term) intractable pain
- Symptomatic relief of post-traumatic acute pain and post surgical pain
Indications for Russian waveform:
- Temporary relaxation of muscle spasms
- Prevention or retardation of disuse atrophy in post-injury type conditions
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Image /page/1/Picture/0 description: The image shows the word "IBRAMED" in bold, black, capital letters. Above the word is a black graphic design that features three horizontal lines on the top and bottom, with a vertical line connecting them in the middle. The design is symmetrical and bold. The overall image has a clean and professional look.
- Increase local blood circulation
- Muscle re-education
- Maintaining or increasing range of motion
#### Device Description
The device NEURODYN II is a four output channel stimulator, operated in power supply 100 to 240 V, 50-60 Hz, with independent controls, graphic display backlit blue, mechanical contact keyboard and ABS cabinet with acrylic cover.
Used in the following electrical current therapies: TENS (Transcutaneous Electrical Nerve Stimulation) FES (Functional Electrical Stimulation) RUSSIAN CURRENT (Burst Modulated Medium Frequency)
Characteristics:
TENS: four 120mA peak to peak channels FES: four 120mA peak to peak channels RUSSIAN: four 120mA peak to peak channels Electrical Feed: 100 a 240V (50/60Hz) Input Power: 85VA Temperature Range During Transport and Storage: 41 to 122°F Environment Operating Temperature Range: 41 to 113°F
The device NEURODYN COMPACT is a two output channel stimulator. operated in power supply 100 to 240 V, 50-60 Hz, with independent controls, graphic display backlit blue, mechanical contact keyboard and ABS cabinet with acrylic cover.
Used in the following electrical current therapies: TENS (Transcutaneous Electrical Nerve Stimulation) FES (Functional Electrical Stimulation) RUSSIAN CURRENT (Burst Modulated Medium Frequency)
Characteristics:
TENS: four 120mA peak to peak channels FES: four 120mA peak to peak channels RUSSIAN: four 120mA peak to peak channels Electrical Feed: 100 a 240V (50/60Hz) Input Power: 85VA Temperature Range During Transport and Storage: 41 to 122°F Environment Operating Temperature Range: 41 to 113°F
#### Device Comparison Table
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Image /page/2/Picture/0 description: The image shows a logo for IBRAMED. The logo is black and white and features the word "IBRAMED" in a bold, sans-serif font. Above the word is a stylized symbol that resembles a stylized letter "I" with horizontal lines extending from the top and bottom. There is also the text "BR" and "AMC 31".
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# 510(k) Summary
י
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| Device name | Neurodyn<br>Compact | Neurodyn II | Neurodyn | 300 PV Empi |
|---------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| K Number | Pending | Pending | K121369 | K021100 |
| Manufacturer | Ibramed | Ibramed | Ibramed | Empi |
| Indications for Use | As a FES device:<br>Stimulation of the<br>muscles in the<br>leg and<br>ankle of partially<br>paralyzed<br>patients to<br>provide flexion<br>of the foot and<br>thus improve the<br>patient's gait. | As a FES device:<br>Stimulation of the<br>muscles in the<br>leg and ankle of<br>partially<br>paralyzed<br>patients to<br>provide flexion of<br>the foot and thus<br>improve the<br>patient's gait. | | As a FES device:<br>Stimulation of<br>muscles in the leg<br>and ankle of<br>partially paralyzed<br>patients to provide<br>flexion of the foot<br>and thus improve<br>the patient's gait.<br>As a NMES device:<br>Retarding or<br>preventing disuse<br>atrophy<br>Maintaining or<br>increasing range<br>of motion<br>Reeducating<br>muscles<br>Relaxation of<br>muscle spasm<br>Increasing local<br>blood circulation<br>Prevention of<br>venous thrombosis<br>of the calf muscles<br>immediately after<br>surgery |
| | As a TENS<br>device:<br>Symptomatic<br>relief of chronic<br>(long term)<br>intractable pain<br>Symptomatic<br>relief of post-<br>traumatic acute<br>pain and post<br>surgical pain | As a TENS<br>device:<br>Symptomatic<br>relief of chronic<br>(long term)<br>intractable pain<br>Symptomatic<br>relief of post-<br>traumatic acute<br>pain and post<br>surgical pain | As a TENS<br>device:<br>Symptomatic<br>relief of chronic<br>(long term)<br>intractable pain<br>Symptomatic<br>relief of post-<br>traumatic acute<br>pain and post<br>surgical pain | As a TENS device:<br>Symptomatic relief<br>of chronic (long<br>term) intractable<br>pain<br>Symptomatic relief<br>of post-traumatic<br>acute pain and<br>post surgical pain |
| | As a Burst<br>Modulated<br>Alternating | As a Burst<br>Modulated<br>Alternating | As an<br>Interferential and<br>Premodulated<br>device:<br>Symptomatic<br>relief of chronic<br>pain, acute post<br>traumatic pain,<br>or acute post<br>traumatic<br>surgical pain<br>As a Burst<br>Modulated<br>Alternating | As an<br>Interferential This<br>device is not been<br>used as a<br>predicate for the<br>Interferential<br>waveform |
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Image /page/3/Picture/0 description: The image shows the word "IBRAMED" in bold, black, capital letters. Above the word is a symbol that looks like a stylized "I" or a geometric shape. The symbol is also in black and is composed of horizontal lines and a trapezoidal shape in the middle.
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# 510(k) Summary
.
| | | | 510(k) Summary | | | | |
|------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------|--|-----------|--|
| | Russian device: | device: | device: | | | | |
| | Temporary<br>relaxation of<br>muscle spasms<br>Prevention or<br>retardation of<br>disuse atrophy in<br>post-injury type<br>conditions<br>Increase local<br>blood circulation<br>Muscle re-education<br>Maintaining or<br>increasing range<br>of motion | Temporary<br>relaxation of<br>muscle spasms<br>Prevention or<br>retardation of<br>disuse atrophy in<br>post-injury type<br>conditions<br>Increase local<br>blood circulation<br>Muscle re-education<br>Maintaining or<br>increasing range<br>of motion | Temporary<br>relaxation of<br>muscle spasms<br>Prevention or<br>retardation of<br>disuse atrophy in<br>post-injury type<br>conditions<br>Increase local<br>blood circulation<br>Muscle re-education<br>Maintaining or<br>increasing range<br>of motion<br><br>As a Burst<br>Modulated<br>Alternating<br>Current (Aussie)<br>device:<br><br>Temporary<br>relaxation of<br>muscle spasms<br><br>Prevention or<br>retardation of<br>disuse atrophy in<br>post-injury type<br>conditions<br><br>Increase local<br>blood circulation<br><br>Muscle re-education<br><br>As a Microcurrent<br>device:<br>Symptomatic<br>relief of chronic<br>intractable pain<br><br>Symptomatic<br>relief of post-<br>traumatic acute<br>pain and post<br>surgical pain | | | | |
| Technological<br>characteristics<br>Medium-frequency | alternating current<br>(MFAC) | Identical | | Identical | | Identical | |
| Device Material | ABS plastic panel LCD display | ABS plastic panel LCD display | ABS plastic panel LCD display | ABS plastic panel LCD display | | | |
| Width (in) | 6.89 | 6.89 | 14.6 | 9.75 | | | |
| Height | 4.53 | 4.53 | 4.9 | 8.75 | | | |
| Depth | 10.83 | 10.83 | 12.4 | 12.75 | | | |
| Number of Channels | 2 | 4 | 4 | 4 | | | |
:
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Image /page/4/Picture/0 description: The image shows the logo for IBRAMED. The logo consists of the word "IBRAMED" in bold, block letters. Above the word is a stylized graphic that resembles a capital "I" with horizontal lines extending from either side of the top and middle portions of the "I" shape.
| Temperature range<br>during transport<br>and storage | 59°f-104°f | 59°f-104°f | 41°f-122°f | -40 to 158°F |
|------------------------------------------------------|--------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------|
| Environment<br>operating<br>temperature range | 41°f-113°f | 41°f-113°f | 41°F-113°F | 50 to 104°F |
| Performance | Identical | Identical | Identical | Identical |
| Biocompatibility | FDA cleared<br>electrodes | FDA cleared<br>electrodes | FDA cleared<br>electrodes | FDA cleared<br>electrodes |
| Mechanical safety | Identical | Identical | Identical | Identical |
| Anatomical Sites | Identical | Identical | Identical | Identical |
| Burst Modulated<br>Alternating Current<br>(Russian) | Yes | Yes | Yes | No |
| Burst Modulated<br>Alternating Current<br>(Aussie) | No | No | Yes | No |
| Interferential | No | No | Yes | Yes |
| Microcurrent | No | No | Yes | No |
| TENS | Yes | Yes | Yes | Yes |
| FES | Yes | Yes | No | Yes |
| Premodulated | No | No | Yes | Yes |
| Method of current<br>isolation | Double Isolation | Double Isolation | Double Isolation | Double Isolation |
| Patient leakage<br>control-normal<br>condition | 0.0347 mA | 0.0347 mA | 0.0508mA | 0.0502mA |
| Patient leakage<br>control-single fault<br>condition | 0.0162 mA | 0.0162 mA | 0.0252mA | 0.0248mA |
| Software<br>Microprocessor | Yes | Yes | Yes | Yes |
| Automatic overload<br>trip | No | No | No | No |
| Automatic shut off<br>Locking feature | No | No | No | No |
| | Keyboard lock<br>safety feature | Keyboard lock<br>safety feature | Keyboard lock<br>safety feature | Keyboard lock<br>safety feature |
| Treatment timer | Treatment timer<br>with auto shut<br>off | Treatment timer<br>with auto shut<br>off | Treatment timer<br>with auto shut off | Treatment timer |
| Safety standards<br>requirements<br>biocompatibility | IEC 60601-1<br>IEC 60601-2<br>IEC 60602-10<br>IEC 60101-1-4 | IEC 60601-1<br>IEC 60601-2<br>IEC 60602-10<br>IEC 60101-1-4 | IEC 60601-1<br>IEC 60601-2<br>IEC 60602-10 | IEC 60601-1<br>IEC 60601-2<br>IEC 60602-10 |
| Chemical<br>Composition | Has no Chemical<br>Composition | Has no Chemical<br>Composition | Has no Chemical<br>Composition | Has no Chemical<br>Composition |
| Energy Source | 100 to 240 Volts<br>50/60Hz | 100 to 240 Volts<br>50/60Hz | 100 to 240 Volts<br>50/60Hz | 3.0 DC |
| Electrical Output<br>Parameters | TENS 0 to<br>120mA peak to<br>peak<br>FES 0 to 120mA<br>peak to peak<br>RUSSIA 0 to<br>120mA peak to<br>peak | TENS 0 to<br>120mA peak to<br>peak<br>FES 0 to 120mA<br>peak to peak<br>RUSSIA 0 to<br>120mA peak to<br>peak | FES 0 to 120mA<br>peak to peak<br>RUSSIA 0 to<br>120mA peak to<br>peak<br>Interferential 0 to<br>120mA peak to<br>peak<br>Aussie 0 to<br>120mA peak to<br>peak<br>Micro current 0 to<br>990µA peak | NMES 0 to 100mA<br>peak to peak<br>TENS 0 to 50mA<br>peak to peak<br>HV 0 to 300V<br>peak |
| Frequency | 0.5-250 Hz | 0.5-250 Hz | 0.5-250 Hz | 0.5-150 Hz |
| | Phase Duration | Phase Duration | Phase Duration | Phase Duration |
| Phase Duration | 50-500μs | 50-500μs | 50-500μs | 50-400 μs |
| Current Output | 124 mA @500Ω | 124 mA @500Ω | 125 mA @500Ω | 200 mA @ 500Ω |
| | 110mA @2KΩ | 110mA @2KΩ | 95mA @2KΩ | 115 mA @ 2KΩ |
| | 39.2mA @10KΩ | 39.2mA @10KΩ | 23mA @10KΩ | 25 mA @ 10KΩ |
| Charge per Phase | 58μC | 58μC | 56μC | 40@ 500Ω |
| Max. avg. power density | 0.038W/cm2 | 0.038W/cm2 | 0.037W/cm² | 0.0088W/cm² |
:
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Image /page/5/Picture/0 description: The image shows a logo for IBRAMED. The logo consists of the word "IBRAMED" in large, bold, black letters. Above the word is a symbol that looks like a stylized "I" or a geometric shape. The symbol is also in black and is composed of thick lines and rectangular shapes.
## Substantial Equivalence
The subject and the predicate devices have the same intended use, the same operating principle, and are similar in their hardware configuration.
#### Technology
The Neurodyn II and Neurodyn Compact devices are powered muscle stimulator machines that operate using the TENS, Russian and FES waveforms.
#### Non-Clinical Testing
This submission includes testing results of the Neurodyn II and Neurodyn Compact.
The devices have been tested according to:
- IEC 60601-1 .
- IEC 60601-1-2 ●
- IEC 60601-1-4 .
- . IEC 60601-2-10
IEC 60601-1: The general standard IEC 60601-1 - Medical equipment/medical electrical equipment - Part 1: General requirements for basic safety and essential performance - gives general requirements of the series of standards. It is used as a bench mark for many electrical medical devices. Both the subject and predicate devices comply with this standard.
The standard contains requirements concerning basic safety and essential performance that are generally applicable to medical electrical equipment. For certain types of medical electrical equipment, these requirements are either supplemented or modified by the special requirements of a collateral or particular standard. Where particular standards exist, this standard should not be used alone.
IEC 60601-1-2: Medical electrical equipment - Part 1-2: General requirements for basic safety and essential performance - Collateral standard: Electromagnetic compatibility - Requirements and tests
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Image /page/6/Picture/0 description: The image shows a logo for IBRAMED. The logo consists of the word "IBRAMED" in a bold, sans-serif font, with a stylized symbol above it. The symbol is composed of three horizontal bars connected by a vertical bar in the center, with angled lines extending from the top bar to the sides.
This collateral standard applies to electromagnetic compatibility of medical electrical equipment and medical electrical systems. The object of this collateral standard is to specify general requirements and tests for electromagnetic compatibility of medical electrical equipment and medical electrical systems. They are in addition to the requirements of the general standard and serve as the basis for particular standards. Both the subject and predicate devices comply with this standard.
IEC 60601-2-10: Medical electrical equipment - Part 2-10: Particular requirements for the basic safety and essential performance of nerve and muscle stimulators
IEC 60601-2-10:2012 specifies the requirements for the safety and essential performance of nerve and muscle stimulators, for use in the practice of physical medicine. This includes transcutaneous electrical nerve stimulators (TENS) and electrical muscle stimulators (EMS). This second edition cancels and replaces the first edition, published in 1987 and its Amendment 1 (2001). This edition constitutes a technical revision and is aligned with IEC 60601-1:2005+A1:2012.
IEC 60601-1-4: Medical electrical equipment - Part 1-4: General requirements for safety - Collateral Standard: Programmable electrical medical systems
Specifies requirements for the process by which a programmable electrical medical system is designed. Serves as the basis of requirements of Particular Standards, including serving as a quide to safety requirements for the purpose of reducing and managing risk. This standard covers requirement specification, architecture, detailed design and implementation software development, modification, verification and validation, marking and accompanying documents.
#### Conclusion
The Neurodyn Compact and Neurodyn II machines are substantially equivalent to the currently legally marketed Neurodyn and 300 PV. The nonclinical testing demonstrates that the subject devices are as safe, as effective and perform as well or better than the legally marketed predicated devices. The IEC testing showed that the subject devices comply with Medical Electrical Device requirements for powered muscle stimulators. The subject devices passed all aspects of the clinical tests. This shows compliance with the standards currently in place for such medical devices. Compliance includes but is not limited to electrical safety (power input, electrical classification, limitation of voltage/energy, etc.).
{7}------------------------------------------------
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MI) 20993-0002
April 29, 2014
Ibramed Equipamentos Medicos c/o Ms. Tara Conrad TechLink International Consulting 18851 NE 29th Avenue Suite 720 Aventura. FL 33180
Re: K131917
Trade Name: Neurodyn Compact and Neurodyn II Regulation Number: 21 CFR 890.5850 Regulation Name: Powered muscle stimulator Regulatory Class: Class II Product Code: IPF, GZJ, GZI Dated: April 14, 2014 Received: April 18, 2014
Dear Ms. Conrad:
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, the enactment date of the Medical Device Amendments, or to devices that have been reclassilied in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you however, that device labeling must be truthful and not misleading.
If your device is classified (sec above) into cither class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21. Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must or any with all the Act s requirements, including, but not limited to: registration and listing (21
{8}------------------------------------------------
Page 2 of 2 - Ms. Tara Conrad
CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050,
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Small Manufacturers. International and Consumer Assistance at its tollfree number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours,
# Felipe Aquel -S
Carlos L. Peña, PhD, MS Director Division of Neurological and Physical Medicine Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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#### DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration
#### Indications for Use
510(k) Number (if known) K131917
Device Name
Neurodyn Compact and Neurodyn II
Indications for Use (Describe)
Indications for FES waveform:
- Stimulation of the muscles in the leg and ankle of partially paralyzed patients to provide flexion of the patient's gait.
Indications for TENS waveform:
- Symptomatic relief of chronic (long term) intractable pain
- Symptomatic relief of post-traumatic acute pain and post surgical pain
Indications for Russian waveform:
- 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
Type of Use (Select one or both, as applicable)
[x] Prescription Use (Part 21 CFR 801 Subpart D)
[] Over-The-Counter Use (21 CFR 801 Subpart C)
# PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON A SEPARATE PAGE IF NEEDED.
..
FOR FDA USE ONLY
Concurrence of Center for Devices and Radiological Health (CDRH) (Signature)
# 9 -04'00'
FORM FDA 3881 (1/14)
Form Approved: OMB No. 0910-0120 Expiration Date: January 31, 2017 See PRA Statement on last page.
{10}------------------------------------------------
This section applies only to requirements of the Paperwork Reduction Act of 1995.
#### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.*
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
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Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.