K150353 · BTL Industries, Inc. · IMG · Nov 13, 2015 · Physical Medicine
Device Facts
Record ID
K150353
Device Name
BTL-4000
Applicant
BTL Industries, Inc.
Product Code
IMG · Physical Medicine
Decision Date
Nov 13, 2015
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 890.5860
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
ELECTROTHERAPY VMS, VMS Burst, Russian, Monophasic Hi-Volt (NMES). Interferential and Premodulated (IFS) are indicated for relaxation of muscle spasms; prevention of disuse atrophy; increase of local blood circulation; muscle reeducation; maintaining or increasing range of motion and immediate postsurgical stimulation of calf muscles to prevent venous thrombosis. Microcurrent, Interferential, Premodulated (IFS), VMS Burst, Asymmetrical Biphasic (TENS) and Symmetrical Biphasic (TENS) are indicated for symptomatic relief and management of chronic, intractable pain; post-traumatic acute pain and post-surgical acute pain. FES is indicated for 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. DC Continuous Mode is indicated for relaxation of muscle spasm. ULTRASOUND THERAPY Ultrasound module is indicated for an application of therapeutic deep heat for the treatment of selected sub-chronic and chronic medical conditions such as: relief of pain, muscle spasms and joint contractures; relief of pain, muscle spasms and joint contractures that may be associated with: adhesive capsultis, with slight calcification, myositis, soft tissue injuries, shortened tendons due to past injuries and scar tissues; relief of sub-chronic pain and joint contractures resulting from: capsular tightness, capsular scaring. LASER THERAPY Laser module is indicated for topical heating for: temporary increase of local blood circulation; temporary relief of minor muscle and joint aches, pains, and stiffness; relaxation of muscles; temporary relief of muscle spasms and temporary relief of minor pain and stiffness associated with arthritis.
Device Story
BTL-4000 is a professional physiotherapy system comprising electrotherapy, ultrasound, and laser therapy modules; operated by clinicians in clinical settings. Electrotherapy delivers electrical currents via skin electrodes to stimulate nerves/muscles. Ultrasound uses piezoceramic transducers (Pz26, NCE41) to convert mechanical energy into deep tissue heat. Laser therapy applies coherent, polarized, monochromatic light via probes or clusters for topical heating. Device features a 7-inch color touchscreen for protocol selection; allows configuration of therapy parameters. Output affects clinical decision-making by providing non-invasive options for pain relief, muscle rehabilitation, and tissue healing. Benefits include improved patient mobility, pain management, and recovery from musculoskeletal injuries.
Clinical Evidence
No clinical data. Substantial equivalence is based on bench testing and comparison of technical characteristics to predicate devices.
Technological Characteristics
System includes electrotherapy, ultrasound, and laser modules. Ultrasound uses piezoceramic crystals (Pz26, NCE41). Laser uses diodes (685-830 nm). Electrical safety: Class II, BF. Connectivity: Standalone with 7-inch color touchscreen. Standards: IEC 60601-1, 60601-1-2, 60601-2-5, 60601-2-10, 60601-2-22, 60825-1, ISO 10993-1/5/10, IEC 62304.
Indications for Use
Indicated for patients requiring muscle stimulation (spasms, atrophy, reeducation, circulation, ROM, post-surgical calf stimulation, gait improvement in partially paralyzed patients), pain management (chronic, intractable, post-traumatic, post-surgical), and therapeutic deep heat or topical heating for musculoskeletal conditions (pain, spasms, contractures, arthritis, soft tissue injuries).
Regulatory Classification
Identification
An ultrasound and muscle stimulator for use in applying therapeutic deep heat for selected medical conditions is a device that applies to specific areas of the body ultrasonic energy at a frequency beyond 20 kilohertz and that is intended to generate deep heat within body tissues for the treatment of selected medical conditions such as relief of pain, muscle spasms, and joint contractures, but not for the treatment of malignancies. The device also passes electrical currents through the body area to stimulate or relax muscles.
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Image /page/0/Picture/11 description: The image contains the logo for the Department of Health & Human Services - USA. The logo features the department's emblem, which includes a stylized depiction of a human face in profile, along with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the emblem. The emblem is positioned to the right of the text.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
November 13, 2015
BTL Industries, Inc. Attn: Mr. Jan Zarsky Executive Vice President 47 Loring Drive Framingham, MA 01702
> Re: K150353 Trade Name: BTL-4000 Regulation Number: 21 CFR 890.5860 Regulation Name: Ultrasound and muscle stimulator Regulatory Class: Class II Product Code: IMG, IPF, GZJ, GZI, LIH, ILY Dated: October 12, 2015 Received: October 14, 2015
Dear Mr. Zarsky:
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 27f 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 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
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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,
## Carlos L. Pena-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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### Indications for Use
510(k) Number (if known) K150353
Device Name BTL-4000
Indications for Use (Describe) ELECTROTHERAPY
VMS, VMS Burst, Russian, Monophasic Hi-Volt (NMES). Interferential and Premodulated (IFS) are indicated for relaxation of muscle spasms; prevention of disuse atrophy; increase of local blood circulation; muscle reeducation; maintaining or increasing range of motion and immediate postsurgical stimulation of calf muscles to prevent venous thrombosis.
Microcurrent, Interferential, Premodulated (IFS), VMS Burst, Asymmetrical Biphasic (TENS) and Symmetrical Biphasic (TENS) are indicated for symptomatic relief and management of chronic, intractable pain; post-traumatic acute pain and post-surgical acute pain.
FES is indicated for 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.
DC Continuous Mode is indicated for relaxation of muscle spasm.
#### ULTRASOUND THERAPY
Ultrasound module is indicated for an application of therapeutic deep heat for the treatment of selected sub-chronic and chronic medical conditions such as: relief of pain, muscle spasms and joint contractures; relief of pain, muscle spasms and joint contractures that may be associated with: adhesive capsultis, with slight calcification, myositis, soft tissue injuries, shortened tendons due to past injuries and scar tissues; relief of sub-chronic pain and joint contractures resulting from: capsular tightness, capsular scaring.
### LASER THERAPY
Laser module is indicated for topical heating for: temporary increase of local blood circulation; temporary relief of minor muscle and joint aches, pains, and stiffness; relaxation of muscles; temporary relief of muscle spasms and temporary relief of minor pain and stiffness associated with arthritis.
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)
#### CONTINUE ON A SEPARATE PAGE IF NEEDED.
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Image /page/4/Picture/0 description: The image shows a logo for BTL, which is a telecommunications company in Belize. The logo consists of three blue diamonds that are interlocked. The letters "BTL" are written in white inside the diamonds. The logo is simple and modern, and it is easily recognizable.
# Section 5 - 510(k) Summary
## General Information
| Sponsor: | BTL Industries, Inc.<br>47 Loring Drive<br>Framingham, MA 01702<br>Tel: +1-866-285-1656<br>Fax: +1-888-499-2502 |
|------------|-----------------------------------------------------------------------------------------------------------------|
| Applicant: | BTL Industries, Inc.<br>47 Loring Drive<br>Framingham, MA 01702<br>Tel: +1-866-285-1656<br>Fax: +1-888-499-2502 |
- Contact Person: Jan Zarsky BTL Industries, Inc. Executive VP zarsky@btlnet.com
Summary Preparation 5 February, 2015 Date:
### Device Names
Trade/Proprietary Name: BTL-4000
Classification Name:
21 CFR 890.5300 Ultrasonic diathermy 21 CFR 890.5500 Infrared lamp 21 CFR 890.5850 Powered muscle stimulator 21 CFR 890.5860 Ultrasound and Muscle stimulator 21 CFR 882.5890 TENS for pain relief 21 CFR 882.5810 External functional neuromuscular stimulator
Product Code:
GZI - Stimulator, Neuromuscular, External Functional GZJ - Stimulator, Nerve, Transcutaneous, for Pain Relief ILY - Lamp, Infrared, Therapeutic Heating IMG - Stimulator, Ultrasound and Muscle, for Use in Applying Therapeutic Deep Heat IPF - Stimulator, Muscle, Powered LIH - Interferential Current Therapy
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Image /page/5/Picture/0 description: The image shows a logo with three interconnected blue squares. Each square has a letter inside: 'B', 'T', and 'L' respectively. The squares are arranged horizontally and slightly overlap, creating a linked chain effect. The logo appears to be for an organization or company with the initials BTL.
## Legally Marketed Predicate Devices
BTL-4000 is substantially equivalent to the current products that are already cleared for USA distribution under the following 510(k) Premarket Notification numbers:
- Vectra Genisys Chattanooga Medical Supply, Inc. (K031077) .
- . Vectra Genisys Laser Module - Chattanooga Medical Supply, Inc. (K040662)
## Product Description
BTL-4000 is a professional physiotherapy device. Depending on the required configuration, the device can consist of up to three generators - electrotherapy, ultrasound therapy and laser therapy.
Electrotherapy is a non-invasive therapeutic method based on electrical current flow through the human tissues. The electric current is applied with the use of electrodes directly through the patient's skin. The use of electrotherapy is accepted in the field of rehabilitation. Ultrasound therapy is a non-invasive therapeutic method, which uses mechanical energy of the longitudinal waves penetrating deep through human soft-tissues. Mechanical waves are absorbed in the tissues and transformed into heat energy.Low-level laser therapy is a noninvasive therapeutic method based on the application of coherent, polarized, monochromatic light in the form of a laser beam. The laser beam is absorbed in the tissues.
BTL-4000 is equipped with a colour touch screen, which considerably simplifies its operation. Therapy is simply started by a quick selection from the list of the most frequently used therapeutic protocols or by selecting from the list of all therapeutic protocols. A sophisticated function of the device is the possibility to select the optimum therapy according to the required therapeutic effect or according to the place of application.
The BTL-4000 consists of the following main components:
- . control unit
- user interface with 7" LCD color touch screen ●
- therapy modules electrotherapy, ultrasound and laser .
- accessories depends on the combination - electrotherapy electrodes
- laser probe/cluster
- । ultrasound head/HandsFree sono handpiece
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Image /page/6/Picture/0 description: The image shows a logo with three blue diamond shapes connected together. Inside the diamonds are the letters "BTL". Below the logo is the text "Indications for Use" in a bold, sans-serif font. The text is black and centered below the logo.
### For Electrotherapy
For VMS, VMS Burst, Russian, Monophasic Hi-Volt (NMES), Interferential and Premodulated (IFS):
- relaxation of muscle spasms -
- prevention or retardation of disuse atrophy -
- increase of local blood circulation -
- muscle re-education
- maintaining or increasing range of motion -
- immediate postsurgical stimulation of calf muscles to prevent venous thrombosis
Additionally for Microcurrent, Interferential, Premodulated (IFS), VMS, VMS Burst, Asymmetrical Biphasic (TENS) and Symmetrical Biphasic (TENS):
- symptomatic relief and management of chronic, intractable pain -
- post-traumatic acute pain
- post-surgical acute pain
### For FES:
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.
### For DC Continunous Mode:
- relaxation of muscle spasm -
### For Ultrasound:
-
Application of therapeutic deep heat for the treatment of selected sub-chronic and chronic medical conditions such as:
- relief of pain, muscle spasms and joint contractures ।
- relief of pain, muscle spasms and joint contractures that may be associated with:
- adhesive capsulitis
- bursitis with slight calcification
- I 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 .
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Image /page/7/Picture/0 description: The image shows a logo with the letters BTL inside of three squares. Below the logo is the text "For Laser:", followed by the text "Is indicated for topical heating for:". The text is in black font and is left-aligned.
- temporary increase of local blood circulation
- temporary relief of minor muscle and joint aches, pains, and stiffness -
- relaxation of muscles
- temporary relief of muscle spasms -
- temporary relief of minor pain and stiffness associated with arthritis -
## Non-clinical Testing
The BTL-4000 device has been thoroughly evaluated for electrical safety. The BTL-4000 has been found to conform with applicable medical device safety standards. The system complies with the following standards:
ISO 14971 - Medical devices - Application of risk management to medical devices IEC 62304 - Medical Device Software - Software Life Cycle Processes
### Medical Electrical Equipment
- General requirements for safety IEC 60601-1
- IEC 60601-1-2 Electromagnetic compatibility-Requirements and Tests
- IEC 60601-2-5 Particular requirements for the basic safety and essential performance of ultrasonic physiotherapy equipment
- IEC 60601-2-10 Particular requirements for the basic safety and essential performance of nerve and muscle stimulators
- IEC 60601-2-22 Particular requirements for basic safety and essential performance of surgical, cosmetic, therapeutic and diagnostic laser equipment
- IEC 60825-1 Safety of laser products - Part 1: Equipment classification and requirements
- IEC 60601-1-6 General requirements for basic safety and essential performance -Collateral standard: Usability
- Evaluation and testing within a risk management process ISO 10993-1
- ISO 10993-5 Biological Evaluation of Medical Devices-Tests for In Vitro toxicity
- ISO 10993-10 Biological Evaluation of Medical Devices-Test for Irritation and Skin Sensitization
- ISO 14971 Medical devices Application of risk management to medical devices IEC 62304 - Medical Device Software - Software Life Cycle Processes
## Clinical testing
The substantial equivalence determination for the BTL-4000 is not based upon clinical performance testing. The device safety and efficacy was demonstrated by comparison of technical characteristics between the BTL-4000 and compared to the predicate device.
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Image /page/8/Picture/0 description: The image shows a logo with three interconnected blue diamonds. Inside each diamond is a letter, spelling out "BTL". The letters are also in blue, matching the color of the diamonds. The logo has a clean and modern design.
## Comparison with the Predicate Device
| Device Name | BTL-4000 | Vectra Genisys | Vectra Genisys Laser<br>System |
|---------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Manufacturer | BTL Industries, Inc. | Chattanooga Medical Supply, Inc. | Chattanooga Medical<br>Supply, Inc. |
| 510(k) Number | Current submission | K031077 | K040662 |
| Intended Use | For VMS, VMS Burst, Russian,<br>Monophasic Hi-Volt (NMES), Interferential<br>and Premodulated (IFS):<br>- relaxation of muscle spasms<br>- prevention or retardation of disuse<br>atrophy<br>- increase of local blood circulation<br>- muscle re-education<br>- maintaining or increasing range of<br>motion<br>- immediate postsurgical stimulation of<br>calf muscles to prevent venous<br>thrombosis<br>Additionally for Microcurrent,<br>Interferential, Premodulated (IFS), VMS,<br>VMS Burst, Asymmetrical Biphasic<br>(TENS) and Symmetrical Biphasic<br>(TENS):<br>- symptomatic relief and management of<br>chronic, intractable pain<br>- post-traumatic acute pain<br>- post-surgical acute pain<br>For FES:<br>Stimulation of the muscles in the leg and<br>ankle of partially paralyzed patients to<br>provide flexion of the foot and thus<br>improve the patient's gait.<br>For DC Continuous Mode:<br>- Relaxation of muscle spasm<br>For Laser:<br>the laser module is indicated for topical<br>heating for:<br>-temporary increase in local blood<br>circulation<br>-temporary relief of minor muscle and<br>joint aches, pains, and stiffness<br>-relaxation of muscles<br>-temporary relief of muscle spasms<br>-temporary relief of minor pain and<br>stiffness associated with arthritis<br>For Ultrasound<br>Application of therapeutic deep heat for<br>the treatment of selected sub-chronic and<br>chronic medical conditions such as:<br>- relief of pain, muscle spasms and joint<br>contractures<br>- relief of pain, muscle spasms and joint<br>contractures that may be associated with:<br>-adhesive capsulitis<br>-bursitis with slight calcification<br>-myositis<br>-soft tissue injuries<br>-shortened tendons due to past injuries<br>and scar tissues<br>-relief of sub-chronic, chronic pain and<br>joint contractures resulting from:<br>-capsular tightness<br>-capsular scarring | For VMS, VMS Burst, Russian,<br>Monophasic Hi-Volt (NMES), Interferential<br>and Premodulated (IFS):<br>- relaxation of muscle spasms<br>- prevention or retardation of disuse atrophy<br>- increase of local blood circulation<br>- muscle re-education<br>-maintaining or increasing range of motion<br>- immediate postsurgical stimulation of calf<br>muscles to prevent venous thrombosis<br>Additionally for Microcurrent, Interferential,<br>Premodulated (IFS), VMS, VMS Burst,<br>Asymmetrical Biphasic (TENS) and<br>Symmetrical Biphasic (TENS):<br>- symptomatic relief and management of<br>chronic, intractable pain<br>- post-traumatic acute pain<br>- post-surgical acute pain<br>For FES:<br>Stimulation of the muscles in the leg and<br>ankle of partially paralyzed patients to<br>provide flexion of the foot and thus improve<br>the patient's gait.<br>For DC Continuous Mode:<br>- Relaxation of muscle spasm<br>For EMG:<br>To determination the activation timing of<br>muscles for a) retraining of muscle<br>activation b) coordination of muscle<br>activation An indication of the force<br>produced by muscle for control and<br>maintenance of muscle contractions.<br>Relaxation muscle training. Muscle re-<br>education<br>For EMG triggered Stim:<br>Stroke rehab by muscle re-education<br>-Relaxation of muscle spasm<br>-Prevention of retardation of disuse atrophy<br>-Increase local blood circulation<br>-Muscle re-education<br>-Maintaining or increase range of motion<br>For Ultrasound:<br>Application of therapeutic deep heat for the<br>treatment of selected sub-chronic and<br>chronic medical conditions such as:<br>-relief of pain, muscle spasms and joint<br>contractures<br>-relief of pain, muscle spasms and joint<br>contractures that may be associated with:<br>-adhesive capsulitis<br>-bursitis with slight calcification<br>-myositis<br>-soft tissue injuries<br>-shortened tendons due to past injuries<br>and scar tissues<br>-relief of sub-chronic, chronic pain and<br>joint contractures resulting from:<br>-capsular tightness<br>-capsular scarring | Vectra Genisys (Intelect XT)<br>Laser Module and Vectra<br>Genisys (Intele<br>XT) Laser Transportable<br>Systems are indicated for<br>topical heating for:<br>-temporary increase in local<br>blood circulation<br>-temporary relief of minor<br>muscle and joint aches,<br>pains, and stiffness<br>-relaxation of muscles<br>-temporary relief of muscle<br>spasms<br>-temporary relief of minor<br>pain and stiffness<br>associated with arthritis |
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Image /page/9/Picture/0 description: The image shows a blue logo with the letters BTL inside of three diamond shapes. The diamond shapes are connected to each other. The logo is simple and modern. The color blue is a calming and professional color.
| Device Name | BTL-4000 | Vectra Genisys | Vectra Genisys Laser<br>System |
|------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Manufacturer | BTL Industries, Inc. | Chattanooga Medical Supply, Inc. | Chattanooga Medical<br>Supply, Inc. |
| 510(k) Number | Current submission | K031077 | K040662 |
| Product Code | GZI<br>GZJ<br>ILY<br>IMG<br>IPF<br>LIH | GZI<br>GZJ<br>IMG<br>IPF<br>нсс<br>LIH | ILY |
| Electrical<br>Protection | Class II, BF | Class I, BF | Class I, B |
| Dimensions | 380×190×260 mm | 289×222×324 mm | 288mm(with applicator) /<br>239mm(without<br>applicator)×163mm×328mm |
| Power Voltage and<br>Frequency | ~ 100 V to 240 V AC, 50-60 Hz | ~ 100 V to 240 V AC, 50-60 Hz | ~ 100 V to 240 V AC, 50-<br>60 Hz |
| Covering Grade | IP20 | IPX0 | unknown |
| Display | colour, touchscreen | colour, display | |
| Trolley available | yes | yes | yes |
| Body areas<br>Indication | yes | yes | yes |
| Battery module | optional | optional | yes |
| Operating<br>Conditions | 10 °C to +30 °C<br>30 % to 75 %<br>700 hPa to 1,060 hPa | 100-240 V - 1.0 A, 50/60 Hz | 10 °C to +30 °C<br>30 % to 75 %<br>700 hPa to 1,060 hPa |
| Electrotherapy Module | | | |
| Electrical<br>protection | BF | BF | N/A |
| Number of<br>channels | 2; 4 | 2; 4 | N/A |
| Output Intensity | 0-500 V, 0-200 mA | 0-500 V, 0-200 mA | N/A |
| Electrotherapy<br>Currents | IFC - Interferential (Traditional 4 Pole)<br>Premodulated (Traditional 2 Pole IFC)<br>TENS - Symmetrical Biphasic<br>TENS - Asymmetrical Biphasic<br>Russian<br>Direct Current<br>Microcurrent<br>High Voltage Pulsed Current (HVPC)<br>VMS. VMS Burst | IFC - Interferential (Traditional 4 Pole)<br>Premodulated (Traditional 2 Pole IFC)<br>TENS - Symmetrical Biphasic<br>TENS - Asymmetrical Biphasic<br>Russian<br>Direct Current<br>Microcurrent<br>High Voltage Pulsed Current (HVPC)<br>VMS. VMS Burst | N/A |
| EMG<br>(Biofeedback) | no | yes | N/A |
| TENS - asymmetrical biphasic | | | |
| Intensity - CC<br>Mode | 0-110 mA | 0–110 mA | N/A |
| Intensity - CV<br>mode | 0-110 V | 0-110 V | N/A |
| Maximum Phase<br>Duration | 20-1000 us | 20-1000 us | N/A |
| Frequency Range | 1–250 Hz | 0–250 Hz | N/A |
| Device Name | BTL-4000 | Vectra Genisys | Vectra Genisys Laser<br>System |
| Manufacturer | BTL Industries, Inc. | Chattanooga Medical Supply, Inc. | Chattanooga Medical<br>Supply, Inc. |
| 510(k) Number | Current submission | K031077 | K040662 |
| Maximum Average<br>Power Density | Electrode 7.5×14 cm -> 0.05 W/cm2<br>Electrode 3.2 cm -> 0.62 W/cm-<br>Electrode 5 cm -> 0.25 W/cm2 | | N/A |
| Current Density | Depends on the surface of the chosen<br>electrode 0.1-14 mA/cm- | Depends on the surface of the chosen<br>electrode 0.1-16 mA/cm- | N/A |
| Waveform Shape | | | N/A |
| Electrode Size | 7.5×14 cm<br>3.2 cm<br>5 cm | 3 cm<br>7 cm | N/A |
| Number of<br>Channels | 2 | 2 | N/A |
| Channel Isolation | 1 MOPP (1500 V) | - | N/A |
| TENS - symmetrical biphasic | | | |
| Intensity - CC<br>Mode | 0-80 mA | 0-80 mA | N/A |
| Intensity - CV<br>mode | 0-80 V | 0–80 V | N/A |
| Maximum Phase<br>Duration | 20-1000 us | 20-1000 us | N/A |
| Frequency Range | 1–250 Hz | 1–250 Hz | N/A |
| Maximum Average<br>Power Density | Electrode 7.5×14 cm -> 0.05 W/cm2<br>Electrode 3.2 cm -> 0.62 W/cm2<br>Electrode 5 cm -> 0.25 W/cm2 |…
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.
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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.