K171035 · Katalyst, Inc. · NGX · Sep 6, 2017 · Physical Medicine
Device Facts
Record ID
K171035
Device Name
Katalyst Mark 1 Muscle Stimulation System
Applicant
Katalyst, Inc.
Product Code
NGX · Physical Medicine
Decision Date
Sep 6, 2017
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 890.5850
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The Katalyst Mark 1 is intended to stimulate healthy muscles in order to improve or facilitate muscle performance. It is not intended to be used in conjunction with therapy or treatment of medical diseases or medical conditions of any kind. None of the training programs or operational parameters are designed to target injured or ailing muscles and its use on such muscles is contraindicated. The Katalyst Mark 1 is Rx only.
Device Story
Katalyst Mark 1 is a powered muscle stimulation system consisting of a compression textile suit with embedded electrodes, a battery-powered Impulse Pack, and a tablet-based control application. The system is operated by a certified professional in a clinic or training environment. The operator configures training programs via the Katalyst Application on a Windows 10 tablet, which communicates wirelessly via Bluetooth Smart to the Impulse Pack. The Impulse Pack delivers regulated electrical impulses to major muscle groups through the suit's electrodes. The device provides localized EMS to improve muscle performance. The operator monitors training duration and intensity levels through the tablet interface. The system includes safety features like automatic overload/no-load trips and a physical emergency shutoff button. The device is intended for healthy muscles only; it is not for rehabilitation or medical treatment.
Clinical Evidence
Bench testing only. No clinical data provided. Testing included biocompatibility (ISO 10993-5/10), electrical safety (IEC 60601-1), electromagnetic compatibility (IEC 60601-1-2), nerve/muscle stimulator performance (IEC 60601-2-10), and battery safety (IEC 62133). Engineering bench testing included oscilloscope waveform verification under various loads and wireless risk mitigation validation.
Technological Characteristics
System comprises a compression suit with embedded electrodes, Impulse Pack, and tablet controller. Uses bipolar square waveforms. Powered by 3.8V Li-Po battery. Connectivity via Bluetooth Smart (BT LE 4.0). Complies with IEC 60601-1, IEC 60601-2-10, and IEC 60601-1-2. Electrodes use 4mm standard SNAP connectors. Software-controlled intensity and training parameters.
Indications for Use
Indicated for healthy individuals 18+ years of age to stimulate muscles to improve or facilitate muscle performance. Contraindicated for individuals with cardiac pacemakers, known heart conditions, history of cardiac arrhythmia, pregnancy, implanted defibrillators, or other implanted metallic/electronic devices.
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.
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
September 6, 2017
Katalyst Inc. Amish Patel Chief Product Officer 316 Occidental Avenue South B300 Seattle, Washington 98104
Re: K171035
Trade/Device Name: Katalyst Mark 1 Muscle Stimulation System Regulation Number: 21 CFR 890.5850 Regulation Name: Powered Muscle Stimulator Regulatory Class: Class II Product Code: NGX Dated: August 1, 2017 Received: August 3, 2017
Dear Mr. Patel:
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 reclassified 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 (see above) into either 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.
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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 comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical devicerelated 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 Industry and Consumer Education (DICE) 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. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 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 Industry and Consumer Education (DICE) 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,
# Vivek J. Pinto -S
for 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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#### Indications for Use
510(k) Number (if known) K171035
Device Name
Katalyst Mark 1 Muscle Stimulation System
#### Indications for Use (Describe)
The Katalyst Mark 1 is intended to stimulate healthy muscles in order to improve or facilitate muscle performance.
It is not intended to be used in conjunction with therapy or treatment of medical conditions of any kind. None of the training programs or operational parameters are designed to target injured or ailing muscles and its use on such muscles is contraindicated.
The Katalyst Mark 1 is Rx only.
| Type of Use (Select one or both, as applicable) | |
|-------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|
| <div> <span> <span style="text-decoration: overline;">X</span> Prescription Use (Part 21 CFR 801 Subpart D) </span> </div> | <div> <span> □ Over-The-Counter Use (21 CFR 801 Subpart C) </span> </div> |
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# 510(K) SUMMARY
This summary is being submitted in accordance with the requirements of 21 CFR 807.92.
## 1.1 Submitter
Katalyst Inc. 316 Occidental Avenue S. B300 Seattle, WA 98104
Contact: Amish Patel, Chief Product Officer Tel: 406-616-3671 Email: devices@katalyst-fitness.com
## 1.2 Date Prepared
September 6, 2017
### 1.3 Device Name and Classification Information:
Trade/Proprietary Name: Katalyst Mark 1 Muscle Stimulation System Common Name: Powered Muscle Stimulator for Muscle Conditioning Classification Name: Powered Muscle Stimulator Classification: 21 CFR 890.5850, Class II Product Code: NGX Panel: 89, Physical Medicine
#### 1.4 Predicate Devices
Primary Predicate: Compex® Sport Plus (K083140)
Secondary Predicate: E-Fit EF-1280 (K133225)
## 1.5 Device Description
The Katalyst Mark 1 Muscle Stimulation System consists of the following three main components:
| Katalyst Suit | Worn by the client, the Katalyst Suit is a compression textile<br>with embedded electrodes connected by a cable harness. When<br>connected to the Impulse Pack it provides localized EMS<br>impulses to major muscle groups at controllable intensities. |
|---------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|---------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| Impulse Pack | A powered muscle stimulation device specifically designed to<br>mate with the Katalyst Suit through a single port connector. It<br>delivers electrical impulses through a battery powered regulated<br>booster. The Impulse Pack is operator controlled wirelessly via<br>the Katalyst Application over Bluetooth. |
|-------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Katalyst<br>Application | Controlled by the Operator, the Katalyst Application is run on a<br>Microsoft Surface Pro 3 running Windows 10 Professional. It is<br>used to configure and run a Katalyst training, including the<br>setting of independent intensities for each muscle group channel. |
Accessories included: cable harnesses and an Impulse Pack charging cable.
### 1.6 Indications for Use:
The Katalyst Mark 1 is intended to stimulate healthy muscles in order to improve or facilitate muscle performance.
It is not intended to be used in conjunction with therapy or treatment of medical diseases or medical conditions of any kind. None of the training programs or operational parameters are designed to target injured or ailing muscles and its use on such muscles is contraindicated.
The Katalyst Mark 1 is Rx only.
#### 1.7 Contraindications
The Katalyst Mark 1 should only be operated by a certified Katalyst Operator. Trainings should not be used by anyone under 18 years of age, with a cardiac pacemaker, with known heart conditions, with a history of cardiac arrhythmia, who is pregnant, with an implanted defibrillator, or with other implanted metallic or electronic device. Such use could cause cardiac arrhythmia, electric shock, burns, electrical interference, or death. Other contraindications are provided in the operator guide.
#### 1.8 Basic Device Characteristics - Comparison with Predicate Devices
| Characteristic | New Device<br>(Katalyst Mark 1<br>Muscle Stimulation<br>System) | Primary Predicate<br>Compex Sport Plus<br>(K083140) | Secondary<br>Predicate:<br>E-Fit EF-1280<br>(K133225) | Similar/<br>Different |
|-----------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------|
| Device Name,<br>Model | Katalyst Mark 1 Muscle<br>Stimulation System | Compex Sport Plus<br>(currently marketed) | E-Fit EF-1280 | K083140 -<br>Different |
| Manufacturer | | as Compex Sport Elite) | | K133225 - Different<br>K083140 - Different |
| | Katalyst Inc. | DJO LLC | FIT PRO, LLC | K133225 - Different<br>K083140 - Similar<br>K133225 - Similar |
| Indications for Use | The Katalyst Mark 1 is intended to stimulate healthy muscles in order to improve or facilitate muscle performance.<br><br>It is not intended to be used in conjunction with therapy or treatment of medical diseases or medical conditions of any kind. None of the training programs or operational parameters are designed to target injured or ailing muscles and its use on such muscles is contraindicated.<br><br>The Katalyst Mark 1 is Rx only. | The Compex® Sport Plus is intended to stimulate healthy muscles in order to improve or facilitate muscle performance.<br><br>The Compex® Sport Plus is not intended to be used in conjunction with therapy or treatment of medical diseases or medical conditions of any kind. None of the Compex® Sport Plus training programs is designed for injured or ailing muscles and its use on such muscles is contraindicated.<br><br>The Compex® Sport Plus electrical impulses allow the triggering of action potentials on motoneurones of motor nerves (excitations). These excitations of motoneurones are transmitted to the muscle fibers via the | E-fit EF-1280 is a machine with electronic muscle stimulation based on EMS technology. Regarding its use, the device is specifically designed as an addition to other sports and for training muscles. It must be used for only healthy muscles and clients, not for rehabilitation purposes.<br><br>The E-Fit EF-1280 intended to stimulate healthy muscles in order to improve or facilitate muscle performance.<br><br>The E-Fit EF-1280 is not intended to be used in conjunction with therapy or treatment of medical diseases or medical conditions of any kind. None | |
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| | motor endplate<br>where they generate<br>mechanical muscle<br>fiber responses that<br>correspond to<br>muscle work.<br>Depending on the<br>parameters of the<br>electrical impulses<br>(pulse frequency,<br>duration of<br>contraction,<br>duration of rest,<br>total session<br>duration), different<br>types of muscle<br>work can be<br>imposed on the<br>stimulated muscles.<br><br>The various types of<br>muscle work that<br>the Compex® Sport<br>Plus can impose on<br>the stimulated<br>muscles are able to<br>improve or facilitate<br>muscle<br>performance.<br><br>The Compex®<br>Sport Plus may<br>therefore be<br>considered a<br>technique of muscle<br>training | of the E-Fit EF-<br>1280 training<br>programs is<br>designed for<br>injured or ailing<br>muscles and its<br>use on such<br>muscles is<br>contraindicated.<br><br>The E-Fit EF-<br>1280 electrical<br>impulses allow<br>the triggering of<br>action potentials<br>on<br>motoneurones of<br>motor nerves<br>(excitations).<br>These<br>excitations of<br>motoneurones<br>are transmitted<br>to the muscle<br>fibers via the<br>motor endplate<br>where they<br>generate<br>mechanical<br>muscle fiber<br>responses that<br>correspond to<br>muscle work.<br>Depending on<br>the parameters<br>of the electrical<br>impulses (pulse<br>frequency,<br>duration of<br>contraction,<br>duration of rest,<br>total session<br>duration),<br>different types<br>of muscle work |
|--|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|--|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| Connection of<br>device to<br>electrodes | The Katalyst Impulse<br>Pack unit is connected to<br>the electrodes via a cable<br>electrode harness. The<br>connection to the<br>Impulse Pack is via a<br>ROHS compliant<br>standard DB-25 Female<br>connector, and snapping<br>onto the electrodes using<br>standard 4mm SNAP<br>connectors integrated in<br>the electrodes<br>themselves. The SNAP<br>headers are combined<br>and over molded in the<br>lead cables. | With 6-pole cables<br>including female<br>custom SNAP<br>plugged on the<br>custom Compex<br>female SNAP<br>assembled in the<br>electrode. Entire<br>electronic circuit for<br>four (4) Stimulation<br>Channels and User<br>Interface is<br>combined into same<br>casing, connected to<br>the electrodes with<br>6-pole cables. | on the<br>stimulated<br>muscles.<br>The various<br>types of muscle<br>work that the E-<br>Fit EF-1280 can<br>impose on the<br>stimulated<br>muscles are able<br>to improve or<br>facilitate muscle<br>performance.<br>The E-Fit EF-<br>1280 may<br>therefore be<br>considered a<br>technique of<br>muscle training.<br>The EF-1280<br>unit is connected<br>to the electrodes<br>via a cable<br>electrode<br>harness which is<br>connected to the<br>EMS device<br>with a physical<br>connection. The<br>connection to<br>the EMS device<br>1s via a plastic<br>12pin<br>waterproof ip68<br>Connector and<br>the connection<br>to the electrodes<br>is via SNAP<br>connectors<br>directly onto the<br>outer vest and | K083140 -<br>Similar<br>K133225 -<br>Similar | | | | LED backlight.<br>The rotary<br>encoder allows<br>for a quick setup<br>and ease of use | Different<br>See section<br>1.10<br>Differences<br>below for<br>justification<br>of<br>differences |
|------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------|
| Power<br>Source(s) | Li-Po Battery<br>3.8V, 7.79Wh | Rechargeable Ni-Mh<br>Battery 4.6V (4 cells | leg straps.<br>Lead Acid<br>Battery | K083140 -<br>Different | Per Channel<br>Control | Yes. Using Windows 10<br>control application | Yes, Using<br>integrated buttons. | Yes. Using<br>rotary encoder<br>knobs for each<br>channel. | K083140 -<br>Similar<br>K133225 -<br>Similar |
| | (2050mAh) | AA=R6) | | K133225 - | Electrode<br>Placement | Integrated into wearable<br>body suit and positioned<br>over corresponding<br>muscle group positions.<br>Cannot be<br>modified/altered. | Not defined.<br>Placement of<br>electrodes is<br>dictated by the<br>operator. | Placed into outer<br>layer,<br>appropriately<br>positioned over<br>corresponding<br>muscle group<br>positions.<br>Cannot be<br>modified/altered. | K083140 -<br>Different<br>K133225 -<br>Similar |
| | IEC 62133: 2012 (2nd<br>Edition) | | 12V, 3400mAH | Different | Electrode<br>Leads | 21 CFR 898 compliant. | 21 CFR 898<br>compliant. | 21 CFR 898<br>compliant. | K083140 -<br>Similar<br>K133225 -<br>Similar |
| Charging<br>System | AC/DC wall plug in,<br>distributed directly to the<br>device. 18.0[v], 1.33[A] | AC/DC 9[v] 0.4[A]<br>Distributed directly to<br>the device | AC/DC wall<br>plug in,<br>distributed<br>directly to the<br>device. | K083140 -<br>Different<br>K133225 -<br>Different<br>Difference<br>does not<br>adversely<br>affect the<br>safety and<br>effectivenes<br>s of the<br>device | Electrode<br>Interface | 4mm Standard SNAP<br>Connector. | 4mm Standard<br>SNAP Connector. | 4mm Standard<br>SNAP<br>Connector. | K083140 -<br>Similar<br>K133225 -<br>Similar |
| Waveform | Bipolar Square | Bipolar Square | Bipolar Square | K083140 -<br>Similar<br>K133225 -<br>Similar | Electrodes | Only 2 per channel; Max<br>20. | 2 per channel; Max<br>8. | 2 per channel;<br>Max 24. | K083140 -<br>Similar<br>K133225 -<br>Similar |
| Channels | 10 | 4 | 12 | K083140 -<br>Different<br>K133225 -<br>Similar | Transthoracic<br>stimulation | Yes | No | Yes | K083140 -<br>Different<br>K133225 -<br>Similar<br>electrode<br>placement<br>and safety<br>mitigations<br>as K133225 |
| Operation<br>Modes | 3 | 9 | 5+5 | K083140 -<br>Similar<br>K133225 -<br>Different | | | | | |
| Charging<br>Isolation | Yes | Yes | Yes | K083140 -<br>Similar<br>K133225 -<br>Similar | | | | | |
| Rechargeable<br>Integrated<br>Battery | Yes | Yes | Yes | K083140 -<br>Similar<br>K133225 -<br>Similar | | | | | |
| Display /<br>Control | Yes; (LCD Display on<br>Microsoft Surface Pro 3 | Yes, Integrated<br>(LCD) | LCD 2x40<br>character LCD | K083140 -<br>Different | | | | | |
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| Communication<br>with Control<br>Interface | Bluetooth Smart (BT LE<br>4.0). | | | Different<br>K133225 -<br>Different<br>See section<br>1.10<br>Differences<br>below for<br>justification<br>of<br>differences |
|--------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------|
| Mobile / Form<br>Factor | Yes (tablet, handheld<br>device and wearable<br>suit). | Yes (pocket device<br>with travel case) | Portable with<br>difficulty, no<br>mobile device,<br>its intended use<br>requires the<br>qualified and<br>trained operator. | K083140 -<br>Similar<br>K133225 -<br>Similar |
| Channel<br>Control<br>Interface | Touch User Interface<br>provided by Katalyst<br>Application on Surface<br>Pro 3 PC | Physical Buttons<br>and Display on unit. | Using rotary<br>encoder knobs<br>for each channel<br>and master<br>rotary encoder<br>for all channels. | K083140 -<br>Different<br>K133225 -<br>Different<br>See section<br>1.10<br>Differences<br>below for<br>justification<br>of<br>differences |
| Instant Shutoff | Physical Button | Physical Button | Physical Button | K083140 -<br>Similar<br>K133225 -<br>Similar |
| Microprocessor<br>Controlled? | Yes | Yes | Yes | K083140 -<br>Similar<br>K133225 -<br>Similar |
| Automatic<br>overload trip? | Yes | Yes | Yes | K083140 -<br>Similar<br>K133225 -<br>Similar |
| Automatic No-<br>Load Trip? | Yes | Yes | Yes | K083140 -<br>Similar<br>K133225 -<br>Similar |
| Automatic<br>Shutoff? | On/Off Switch | On/Off Switch | On/Off Switch | K083140 -<br>Similar<br>K133225 -<br>Similar |
| Patient<br>Override<br>Control? | Yes | Yes | Yes | K083140 -<br>Similar<br>K133225 -<br>Similar |
| Interface<br>Indicators | On/Off - Yes (on<br>Impulse Pack via LED<br>and in application)<br>Low Battery - Yes (on<br>Impulse Pack)<br>Voltage/Current Level -<br>Yes (in application).<br>Charging - yes on<br>Impulse Pack.<br>Duration of training- yes<br>(in application) | On/Off - yes<br>Low Battery - yes<br>Voltage/Current<br>Level - yes<br>Charging - yes<br>Duration of training<br>training- yes. | On/Off - yes<br>Low Battery -<br>yes<br>Voltage/Current<br>Level - yes<br>Charging - yes<br>Duration of<br>training<br>training- yes. | K083140 -<br>Similar<br>K133225 -<br>Similar |
| Duration in<br>minutes | 40 (shown on display) | 55 | 30 minutes | K083140 -<br>Similar<br>K133225 -<br>Similar |
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Table 10: Device Characteristic Comparisons
# 1.9 Output Specification - Comparison with Predicate Devices
| Characteristic | New Device<br>(Katalyst Mark 1<br>Muscle Stimulation<br>System) | Primary Predicate:<br>Compex Sport Plus<br>(K083140) | Secondary<br>Predicate: E-<br>Fit EF-1280<br>(K133225) | Similar/<br>Different |
|-------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|------------------------------------------------------------------|----------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------|
| Waveform | Symmetrical<br>Biphasic | Symmetrical<br>Biphasic | Symmetrical<br>Biphasic | K083140 -<br>Similar<br>K133225 - |
| | | | | Similar |
| Shape | Rectangular | Rectangular | Rectangular | K083140 -<br>Similar<br>K133225 -<br>Similar |
| Maximum Output<br>Voltage (+/- 10%) | 60 V @ 500 Ω<br>96 V @ 2 kΩ<br>114.2 V @ 10 kΩ | 60 V @ 500 Ω<br>165 V @ 2 kΩ<br>165 V @ 10 kΩ | 36 V @ 500 Ω | K083140 -<br>Similar<br>K133225 -<br>Different |
| Maximum Output<br>Current (+/- 10%) | 120 mA @ 500 Ω<br>48 mA @ 2 kΩ<br>11 mA @ 10 kΩ | 120 mA @ 500 Ω<br>82 mA @ 2 kΩ<br>16 mA @ 10 kΩ | 72 mA @ 500 Ω | K083140 -<br>Similar<br>K133225 -<br>Different |
| Positive Pulse Width | 75µs or<br>175µs | 200 µs to 400 µs | 100µs to<br>500µs | K083140 -<br>Different<br>K133225 -<br>Different<br><br>Difference<br>does not<br>adversely<br>affect the<br>safety and<br>effectiveness<br>of the device |
| Negative Pulse Width | 75µs or<br>175µs | 200 µs to 400 µs | 100µs to<br>500µs | K083140 -<br>Different<br>K133225 -<br>Different<br><br>Difference<br>does not<br>adversely<br>affect the<br>safety and<br>effectiveness<br>of the device |
| Frequency | 85Hz or 100Hz | 1 to 120Hz | 5 to 120Hz | K083140 -<br>Similar<br>K133225 -<br>Different |
| For interferential<br>modes only: | No | No | No | K083140 -<br>Similar<br>K133225 -<br>Similar |
| | | | | |
| For multiphasic<br>waveforms only: | Yes | Yes | Yes | Similar<br>K133225 -<br>Similar |
| - Symmetrical<br>phases? | Yes | Yes | Yes | K083140 -<br>Similar<br>K133225 -<br>Similar |
| - Phase Duration<br>(include units)<br>(state range, if<br>applicable)<br>(both phases, if<br>asymmetrical) | 75µs Symmetrical or<br>175uSec<br>Symmetrical | 70-200µs<br>Symmetrical | 100 - 500µs<br>Symmetrical | K083140 -<br>Similar<br>K133225 -<br>Different |
| Net Charge<br>[µC/pulse] | $0.5 [\mu C] @ 500\Omega$<br>Excitation pulse fully<br>compensated | $0 [\mu C] @ 500\Omega$<br>Excitation pulse<br>fully compensated | $0 [\mu C] @ 500\Omega$<br>Excitation<br>pulse fully<br>compensated | K083140 -<br>Similar<br>K133225 -<br>Similar |
| Maximum Phase<br>Charge [µC] | $21\mu C @ 500 \Omega$ | $48\mu C @ 500\Omega$ | $36\mu C @ 500 \Omega$ | K083140 -<br>Similar<br>K133225 -<br>Similar |
| Maximum Current<br>(RMS) Density<br>[mA/cm2] | $2.4mA/cm^2 @500\Omega$ | $1.49mA/cm^2 @ 500\Omega$ | $0.85mA/cm^2 @ 500\Omega$ | K083140 -<br>Different<br>K133225 -<br>Different<br>See section<br>1.10<br>Differences<br>below for<br>justification<br>of<br>differences |
| Maximum Power<br>Density [mW/cm2] | $5.04mW/cm^2 @ 500 \Omega$ | $27.6mW/cm^2 @500\Omega$ | $6.3mW/cm^2 @ 500 \Omega$ | K083140 -<br>Similar<br>K133225 -<br>Similar |
| Burst Mode<br>(i.e., pulse trains) | N/A | Unknown | Unknown | K083140 -<br>Unknown<br>K133225 - |
| c. Burst duration<br>(seconds) | | | | |
| d. Duty Cycle [Line<br>(b) x Line (c)] | | | | |
| ON Time (seconds) | 1 or 4, 1 second<br>intervals<br>(software adjustable<br>modes) | Not Adjustable | 0.1 to 60<br>seconds, 0.1<br>second<br>intervals<br>(adjustable<br>within range) | K083140 -<br>Different<br>K133225 -<br>Different<br>Difference<br>does not<br>adversely<br>affect the<br>safety and<br>effectiveness<br>of the device |
| OFF Time (seconds) | 1 or 4, 1 second<br>intervals<br>(software adjustable<br>modes) | Not Adjustable | 0.1 to 60<br>seconds, 0.1<br>second<br>intervals<br>(adjustable<br>within range) | K083140 -<br>Different<br>K133225 -<br>Different<br>Difference<br>does not<br>adversely<br>affect the<br>safety and<br>effectiveness<br>of the device |
| Treatment Training<br>Time | 1-40 minutes, 1-<br>minute intervals<br>(software adjustable<br>within range) | Not Adjustable | 1-30 minutes,<br>1-minute<br>intervals<br>(adjustable<br>within range) | K083140 -<br>Different<br>K133225 -<br>Similar<br>Difference<br>does not<br>adversely<br>affect the<br>safety and<br>effectiveness<br>of the device |
| Ramp up time per<br>impulse | 0 seconds or 300ms<br>(software adjustable<br>within range) | Not Adjustable | 0 ms - 5000<br>ms, 100ms<br>intervals<br>(adjustable<br>within range) | K083140 -<br>Different<br>K133225 -<br>Different<br>Difference<br>does not<br>adversely<br>affect the<br>safety and<br>effectiveness<br>of the device |
| | | | | does not<br>adversely<br>affect the<br>safety and<br>effectiveness<br>of the device |
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Table 11: Output Specification Comparisons
#### 1.10 Differences
Fundamentally, when we compare the core design, output specifications, operating behavior, intended use and general modes of operation we can conclude there is little difference between the Compex Sport Plus, EF-1280, and the Katalyst Mark 1 Muscle Stimulator.
The following table outlines the essential differences with justifications for how the differences do not adversely impact the safety and effectiveness of the subject device.
| Difference | Additional Details | Justification for how<br>the difference does<br>not adversely impact<br>safety and<br>effectiveness |
|----------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Katalyst Mark 1's use of<br>wireless communication<br>between the controller<br>device and the impulse<br>generator. | In order to better utilize<br>modern interfaces alongside<br>with strong and robust<br>platforms. Katalyst utilizes a<br>Bluetooth Smart connection<br>between its interface controller<br>and the impulse pack. | System validation<br>testing scenarios<br>covering mitigation of<br>wireless risks in<br>accordance with<br>FDA's “Radio<br>Frequency Wireless<br>Technology in Medical<br>Devices - Guidance for<br>Industry and Food and<br>Drug Administration<br>Staff” were added to<br>our full system testing<br>protocol to ensure safe<br>and effective use<br>In addition, this is<br>similar to the<br>PowerDot Pd-01<br>Muscle Stimulator<br>(with PowerDot<br>Mobile Application)<br>(K150078) |
| Using a tablet / touch<br>interface to control<br>channel impulse<br>intensities. | The touch application is used<br>to control the impulse<br>intensities wirelessly via<br>Bluetooth. | Impulse Pack<br>firmware and Katalyst<br>Application software<br>documentation,<br>consistent with a<br>Moderate level of<br>concern, is provided<br>with this 510(k).<br>System Validation<br>Testing proves that all<br>software requirement<br>specifications were<br>met and all software<br>hazards were mitigated<br>to Accepted risk level<br>In addition, this is<br>similar to the<br>PowerDot Pd-01<br>Muscle Stimulator<br>(with PowerDot<br>Mobile Application)<br>(K150078) |
| The Katalyst Mark 1 has a<br>current density (RMS)<br>greater than 2mA/cm² | As outlined in IEC 60601-2-10<br>additional warnings and<br>guidance are included in the<br>Operator's Guide to properly<br>advice operators on proper<br>procedures to increase to<br>intensities. | The Katalyst Mark 1<br>has been tested and<br>conformed to the IEC<br>60601-2-10:2012<br>"Medical electrical<br>equipment - Part 2-10:<br>Particular<br>requirements for the<br>basic safety and<br>essential performance<br>of nerve and muscle<br>stimulators." Edition<br>2.0 standard.<br>Furthermore, the<br>subject device has<br>complied with the<br>recommendations set<br>forth in FDA's<br>"Guidance Document<br>for Powered Muscle<br>Stimulator 510(k)s" |
| | issued on June 9, 1999<br>In addition, Compex<br>Sport (K011880) has a<br>current density of<br>3.84mA/cm² which<br>includes similar<br>warnings and<br>guidance. | |
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#### 1.11 Non-Clinical Tests
The following non-clinical testing was provided in this 510(k):
#### Biocompatibility Testing
Skin contacting electrodes pads have been tested to ISO 10993-10:2009 and ISO 10993-5:2009 standard under GLP.
#### Software Verification and Validation
Impulse Pack firmware and Katalyst Application software documentation, consistent with a Moderate level of concern, is provided with this 510(k).
System Validation Testing proves that all software requirement specifications were met and all software hazards were mitigated to Accepted risk level.
#### Electrical Safety and Electromagnetic Compatibility Testing
The Katalyst Suit and the Impulse Pack have been designed to comply and tested for compatibility with the applicable clauses of the following FDA-recognized standards:
- . IEC/EN 60601-1:2005 "Medical Electrical Equipment - Part 1: General Requirements for Safety" Edition 3.1
- . IEC 60601-2-10:2012 "Medical electrical equipment - Part 2-10: Particular requirements for the basic safety and essential performance of nerve and muscle stimulators." Edition 2.0
- . IEC/EN 60601-1-2:2014 "Medical electrical equipment - Part 1-2: General requirements for basic safety and essential performance - Collater…
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Learn the FDA Browser
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.