K183074 · Astek Technology , Ltd. · IPF · Jan 11, 2020 · Physical Medicine
Device Facts
Record ID
K183074
Device Name
TENS and EMS Stimulator, TENS Stimulator
Applicant
Astek Technology , Ltd.
Product Code
IPF · Physical Medicine
Decision Date
Jan 11, 2020
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 890.5850
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
TENS Stimulator (Model no .: AK-10M) TENS Stimulator provides 5 types TENS output modes (P1-P5) For TENS mode (1) Symptomatic relief of chronic intractable pain, (2) Post traumatic pain, (3) Post-surgical pain TENS and EMS Stimulator (Model no .: AK3-20 and AK3-25) TENS and EMS Stimulator provides 8 types output modes (P1-P8). TENS/EMS output modes (P1-P6&P8) and TENS output modes (P7) For TENS mode (1) Symptomatic relief of chronic intractable pain, (2) Post traumatic pain, (3) Post-surgical pain For EMS mode (1) Relaxation of Muscle spasm, (2) Increase of local blood flow circulation, (3) Prevention or retardation of disuse atrophy, (4) Muscle re-education, (5) Maintaining or increasing range of motion, (6) Immediate postsurgical stimulation of muscles to prevent venous thrombosis TENS and EMS Stimulator (Model no.: AK3-50) TENS and EMS Stimulator provides 10 types output modes (P0-P9). TENS output modes (P0-P4) and EMS output modes (P5-P9) For TENS mode (1) Symptomatic relief of chronic intractable pain, (2) Post traumatic pain, (3) Post-surgical pain For EMS mode (1) Relaxation of Muscle spasm, (2) Increase of local blood flow circulation, (3) Prevention or retardation of disuse atrophy, (4) Muscle re-education, (5) Maintaining or increasing range of motion, (6) Immediate postsurgical stimulation of muscles to prevent venous thrombosis
Device Story
Device consists of TENS and EMS stimulators (models AK-10M, AK3-20, AK3-25, AK3-50) for pain relief and muscle stimulation. Inputs: user-selected programs via keypad. Operation: device delivers gentle electrical current to nerves/muscles via skin-applied electrodes; intensity adjustable by user. Output: biphasic (AK3 series) or monophasic (AK-10M) electrical waveforms displayed on LCD. Used in physiotherapy clinics; operated by patients or clinicians. Output informs treatment settings; benefits include pain management and muscle rehabilitation.
Clinical Evidence
Bench testing only. No clinical data provided.
Technological Characteristics
Materials: ABS, PMMA. Sensing/Actuation: Electrical stimulation via skin electrodes. Energy: DC battery (3V or 6V). Form factor: Handheld with LCD and keypad. Connectivity: Standalone. Standards: IEC 60601-1, IEC 60601-1-2, IEC 60601-2-10, ISO 10993-1. Software: Microprocessor-controlled, rule-based output modes.
Indications for Use
Indicated for patients requiring physiotherapy for symptomatic relief of chronic intractable, post-traumatic, or post-surgical pain (TENS); and for muscle spasm relaxation, increased local blood flow, prevention/retardation of disuse atrophy, muscle re-education, range of motion maintenance/increase, and immediate post-surgical stimulation to prevent venous thrombosis (EMS).
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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January 11, 2020
ASTEK Technology Ltd. You-Jhe Lin Engineer No. 118 Taizih Rd., Rende Dist Tainan City, 71741 Taiwan
Re: K183074
Trade/Device Name: TENS and EMS Stimulator, TENS Stimulator Regulation Number: 21 CFR 890.5850 Regulation Name: Powered Muscle Stimulator Regulatory Class: Class II Product Code: IPF, GZJ Dated: December 10, 2019 Received: December 13, 2019
Dear You-Jhe Lin:
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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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 of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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 https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely.
For Vivek Pinto, Ph.D. Director DHT5B: Division of Neuromodulation and Physical Medicine Devices OHT5: Office of Neurological and Physical Medicine Devices Office of Product Evaluation and Ouality 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) K183074
Device Name TENS and EMS Stimulator, TENS Stimulator
Indications for Use (Describe)
TENS Stimulator (Model no .: AK-10M) TENS Stimulator provides 5 types TENS output modes (P1-P5) For TENS mode (1) Symptomatic relief of chronic intractable pain, (2) Post traumatic pain, (3) Post-surgical pain
TENS and EMS Stimulator (Model no .: AK3-20 and AK3-25) TENS and EMS Stimulator provides 8 types output modes (P1-P8). TENS/EMS output modes (P1-P6&P8) and TENS output modes (P7) For TENS mode (1) Symptomatic relief of chronic intractable pain, (2) Post traumatic pain, (3) Post-surgical pain For EMS mode (1) Relaxation of Muscle spasm, (2) Increase of local blood flow circulation, (3) Prevention or retardation of disuse atrophy, (4) Muscle re-education, (5) Maintaining or increasing range of motion, (6) Immediate postsurgical stimulation of muscles to prevent venous thrombosis
TENS and EMS Stimulator (Model no.: AK3-50)
TENS and EMS Stimulator provides 10 types output modes (P0-P9). TENS output modes (P0-P4) and EMS output modes (P5-P9)
For TENS mode
(1) Symptomatic relief of chronic intractable pain, (2) Post traumatic pain, (3) Post-surgical pain For EMS mode
(1) Relaxation of Muscle spasm, (2) Increase of local blood flow circulation, (3) Prevention or retardation of disuse atrophy, (4) Muscle re-education, (5) Maintaining or increasing range of motion, (6) Immediate postsurgical stimulation of muscles to prevent venous thrombosis
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)
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# 510(k) SUMMARY
| 5.1 Type of Submission: | Traditional |
|------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------|
| 5.2 Date of Summary: | 01/11/2020 |
| 5.3 Submitter: | ASTEK Technology Ltd. |
| Address: | No. 118 Taizih Rd., Rende Dist, Tainan City<br>71741, Taiwan |
| Phone: | +886-6-2729488 |
| Fax: | +886-6-2712818 |
| Contact: | You-Jhe Lin (rd@astek-health.com) |
| 5.4 Identification of the Device: | |
| Proprietary/Trade name: | TENS and EMS Stimulator, TENS Stimulator |
| Regulation Description: | Powered muscle stimulator. |
| Review Panel: | Physical Medicine |
| Regulation Number: | 890.5850 |
| Device Class: | II |
| Primary Product Code | IPF |
| Subsequent Product Code | GZJ |
| 5.5 Identification of the Predicate Device (K113010) | |
| Predicate Device Name: | FDES 101 (ED401) TENS and EMS<br>Stimulator, FDES 102 (ED402) TENS<br>Stimulator, FDES 103 (ED403) EMS<br>Stimulator |
| Manufacturer: | Famidoc Technology Co., Ltd |
| Regulation number: | 890.5850 |
| Device Class: | II |
| Primary Product Code | IPF |
| Subsequent Product Code | GZJ |
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### 5.5 Intended Use
#### TENS Stimulator (Model No.: AK-10M) A
TENS Stimulator provides 5 types TENS output modes (P1-P5) For TENS mode
(1) Symptomatic relief of chronic intractable pain. (2) Post traumatic pain. (3) Post-surgical pain
#### TENS and EMS Stimulator (Model No.: AK3-20, AK3-25) A
TENS and EMS Stimulator provides 8 types output modes (P1-P8). TENS/EMS output modes (P1-P6&P8) and TENS output modes (P7) For TENS mode (1) Symptomatic relief of chronic intractable pain. (2) Post traumatic pain. (3)
Post-surgical pain
For EMS mode
(1) Relaxation of Muscle spasm, (2) Increase of local blood flow circulation, (3) Prevention or retardation of disuse atrophy. (4) Muscle re-education. (5) Maintaining or increasing range of motion. (6) Immediate postsurgical stimulation of muscles to prevent venous thrombosis
#### TENS and EMS Stimulator (Model No.: AK3-50) A
TENS and EMS Stimulator provides 10 types output modes (P0-P9). TENS output modes (P0-P4) and EMS output modes (P5-P9)
For TENS mode
(1) Symptomatic relief of chronic intractable pain. (2) Post traumatic pain. (3) Post-surgical pain
For EMS mode
(1) Relaxation of Muscle spasm, (2) Increase of local blood flow circulation, (3) Prevention or retardation of disuse atrophy, (4) Muscle re-education, (5) Maintaining or increasing range of motion, (6) Immediate postsurgical stimulation of muscles to prevent venous thrombosis
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### 5.6 Device description
#### A TENS Stimulator (Model No.: AK-10M) and EMS Stimulator (Model No.: AK3-20, AK3-25 and AK3-50)
The TENS stimulator and TENS and EMS stimulator, are Transcutaneous Electrical Nerve Stimulator for pain relief and/or Electrical Muscle Stimulator. The stimulators send gentle electrical current to underlying nerves and muscle group via electrodes applied on the skin. The parameters of devices are controlled by the press buttons. Its intensity level is adjustable according to the needs of patients.
The four models have similar housing in a molded plastic case with viewable LCD display, an accessible keypad, and accessible battery storage compartment. The LCD is used to display system information to the user. The device is equipped with a keypad composed of push buttons which are located below the LCD that control the program selection, strength, channel, and power.
The TENS and EMS Stimulator (Model No .: AK3-20, AK3-25 and AK3-50) is the comination unit with the TENS and EMS functions; the function can be selected by press buttons. The range of settings is identical in models AK3-20 and AK3-25 while model AK3-50 provides 10 types of output modes.
#### 5.7 Non-clinical Testing
A series of safety and performance tests were conducted on the subject device, TENS and EMS Stimulator, TENS Stimulator.
- . Shelf life test
- . Software validation
- EMC and Electrical Safety test ●
- Performance test
All the test results demonstrate that TENS and EMS Stimulator, TENS Stimulator meets the requirements of its pre-defined acceptance criteria, and is substantially equivalent to the predicate device.
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#### 5.8 Clinical Testing
No clinical test data was used to support the decision of substantial equivalence.
### 5.9 Substantial Equivalence Determination
The TENS and EMS Stimulator, TENS Stimulator has the same intended use, and technological characteristics with the predicate device (K113010). A series of tests were performed and demonstrated substantial equivalence between the subject and the predicate device. Differences between the devices cited in this section do not raise any new issues of substantial equivalence.
| Item | Subject device | Predicate device | Substantially<br>equivalence |
|---------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------|
| Proprietary Name | TENS and EMS Stimulator, TENS<br>Stimulator | FOES 101 (ED401) TENS and EMS<br>Stimulator, FOES 102 (ED402)<br>TENS Stimulator, FOES 103<br>(ED403) EMS Stimulator | - |
| 510(k) No. | K183074 | K113010 | - |
| Model number | AK-10M, AK3-20,<br>AK3-25, AK3-50 | FOES101 (ED401) | - |
| Manufacturer | ASTEK Technology Ltd. | Famidoc Technology Co., Ltd | - |
| Prescription or OTC | Prescription | Prescription | Same |
| Regulation Number | 890.5850 | 890.5850 | Same |
| Product code | IPF, GZJ | IPF, GZJ | Same |
| Intended Use | TENS Stimulator (Model No.: AK-<br>10M)<br>TENS Stimulator provides 5 types TENS<br>output modes (P1-P5)<br>For TENS mode<br>(1) Symptomatic relief of chronic<br>intractable pain, (2) Post traumatic pain,<br>(3) Post-surgical pain<br><br>TENS and EMS Stimulator (Model | FDES 101 (ED401) TENS and EMS<br>Stimulator<br>For TENS mode<br>1. Symptomatic relief of chronic<br>intractable pain<br>2. Post traumatic pain<br>3. Post-surgical pain<br>For EMS mode<br>1. Relaxation of muscle spasm.<br>2. Increase of local blood flow | Same |
| Item | Subject device | Predicate device | Substantially<br>equivalence |
| | No.: AK3-20, AK3-25)<br>TENS and EMS Stimulator provides 8<br>types output modes (P1-P8). TENS/EMS<br>output modes (P1-P6&P8) and TENS<br>output modes (P7)<br>For TENS mode<br>(1) Symptomatic relief of chronic<br>intractable pain, (2) Post traumatic pain,<br>(3) Post-surgical pain<br>For EMS mode<br>(1) Relaxation of Muscle spasm, (2)<br>Increase of local blood flow circulation,<br>(3) Prevention or retardation of disuse<br>atrophy, (4) Muscle re-education, (5)<br>Maintaining or increasing range of<br>motion, (6) Immediate postsurgical<br>stimulation of muscles to prevent venous<br>thrombosis | circulation<br>3. Prevention or retardation of disuse<br>atrophy<br>4. Muscle re-education.<br>5. Maintaining or increasing range of<br>motion<br>6. Immediate post-surgical<br>stimulation of calf muscles to<br>prevent venous thrombosis | |
| | TENS and EMS Stimulator (Model<br>No.: AK3-50)<br>TENS and EMS Stimulator provides 10<br>types output modes (P0-P9). TENS output<br>modes (P0-P4) and EMS output modes<br>(P5-P9)<br>For TENS mode<br>(1) Symptomatic relief of chronic<br>intractable pain, (2) Post traumatic pain,<br>(3) Post-surgical pain<br>For EMS mode | | |
| Item | Subject device | Predicate device | Substantially<br>equivalence |
| | (1) Relaxation of Muscle spasm, (2)<br>Increase of local blood flow circulation,<br>(3) Prevention or retardation of disuse<br>atrophy, (4) Muscle re-education, (5)<br>Maintaining or increasing range of<br>motion, (6) Immediate postsurgical<br>stimulation of muscles to prevent venous<br>thrombosis | | |
| Using Environment | Physiotherapy clinics | Physiotherapy clinics | Same |
| Target population | Patients who need physiotherapy<br>treatment | Patients who need physiotherapy<br>treatment | Same |
| | | | |
| Treatment area | Neck / Shoulders, Waist/ Abdomen,<br>Arms and Hands, Legs and Feet | Any area (Except those treatment area<br>which been described in the user manual<br>can't use), such as hand, arm, chest,<br>waist, buttock, thigh, calf, back and low<br>back etc. | Same |
| | | | |
| | | | |
| | | | |
| Program | Model no.: AK-10M<br>- Mode: TENS<br>- Consisting of a monophasic waveform<br>with a different range of output<br>voltages, pulse durations, frequencies | - Not publicly available | Similar |
| | Model no.:AK3-20 | | |
| | - Mode: TENS or TENS/EMS | | |
| | - Consisting of a biphasic waveform<br>with a different range of output<br>voltages, pulse durations, frequencies,<br>etc. | | |
| | Model no.:AK3-25 | | |
| | - Mode: TENS or TENS/EMS | | |
| | - Consisting of a biphasic waveform | | |
| | | | |
| Item | Subject device | Predicate device | Substantially<br>equivalence |
| | with a different range of output<br>voltages, pulse durations, frequencies,<br>etc.<br><br>Model no.: AK3-50<br>- Mode: TENS or TENS/EMS<br>- Consisting of a biphasic waveform<br>with a different range of output<br>voltages, pulse durations, frequencies,<br>etc. | | |
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## Basic Unit Characteristics
| Item | Subject Device | | | | Predicate device | Substantially<br>equivalence | |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------|------------------------------------------|------------------------------------------|------------------------------------------|---------------------------------------|------------------------------|-----------|
| Model | AK-10M | AK3-20 | AK3-25 | AK3-50 | FOES101 (ED401) | - | |
| Type of use | Prescription Use | | | | Prescription Use | Same | |
| Power source | DC 3V<br>1xCR2032<br>battery | DC 3V<br>1xCR2032<br>battery | DC 3V<br>1xCR2032<br>battery | DC 6V 4xAA<br>batteries | DC 6V 4xAAA<br>batteries | Different | |
| Method of Line Current Isolation | N/A | N/A | N/A | N/A | N/A | Same | |
| Patient Leakage Current | | | | | | | |
| Normal condition | 0.1μA | 0.1μA | 0.1μA | 0.1μA | 3.0 μΑ | Different | |
| Single fault condition | N/A | N/A | N/A | N/A | 5.8 μΑ | | |
| Note: Although the “Power Source” and “Patient Leakage Current” of subject device are little different from the predicate devices, they all comply with IEC | | | | | | | |
| 60601-1 requirements. So the slight differences will not affect the safety and effectiveness of subject device. | | | | | | | |
| Number of Output Modes | | | | | | | |
| TENS | 5 | 1 | 1 | 5 | 15 | | |
| EMS | N/A | N/A | N/A | N/A | 15 | Similar | |
| TENS/EMS | N/A | 7 | 7 | 5 | N/A | | |
| Number of output channels | 1 | 1 | 2 | 4 | 2 | Different | |
| Synchronous or Alternating | Synchronous and | Synchronous and | Synchronous and | Synchronous and | Synchronous and | Same | |
| Method of Channel Isolation | Alternating | Alternating | Alternating | Alternating | Alternating | Same | |
| Item | Subject Device | | | | Predicate device | Substantially<br>equivalence | |
| Model | AK-10M | AK3-20 | AK3-25 | AK3-50 | FOES101 (ED401) | - | |
| | By electrical<br>circuit and<br>software | By electrical<br>circuit and<br>software | By electrical<br>circuit and<br>software | By electrical<br>circuit and<br>software | By electrical circuit and<br>software | | |
| Regulated Current or Regulated<br>Voltage? | Regulated<br>Voltage | Regulated<br>Voltage | Regulated<br>Voltage | Regulated<br>Voltage | Not publicly available | Different | |
| Software, Firmware, Microprocessor<br>control | Yes | Yes | Yes | Yes | Yes | Same | |
| Automatic Overload Trip? | N/A | N/A | N/A | N/A | Yes | Different | |
| Automatic No-Load Trip? | N/A | Yes | Yes | N/A | Yes | Different | |
| Automatic Shut Off? | Yes | Yes | Yes | Yes | Yes | Same | |
| Patient Override Control? | N/A | N/A | N/A | N/A | N/A | Same | |
| Indicator Display | | | | | | | |
| - On/Off Status | Yes | Yes | Yes | Yes | Yes | Same | |
| - Low Battery | N/A | N/A | N/A | Yes | Yes | Different | |
| - Voltage/Current Level | Yes | Yes | Yes | Yes | Yes | Same | |
| Timer range | 15 minutes | 15 minutes | 15 minutes | 10-30 minutes | 0-60 minutes | Different | |
| Compliance with Voluntary<br>Standards | IEC60601-1,<br>IEC60601-1-2, | IEC60601-1,<br>IEC60601-1-2, | IEC60601-1,<br>IEC60601-1-2, | IEC60601-1,<br>IEC60601-1-2, | IEC60601-1,<br>IEC60601-1-2, | Same | |
| Item | Subject Device | | | | Predicate device | Substantially<br>equivalence | |
| Model | AK-10M | AK3-20 | AK3-25 | AK3-50 | FOES101 (ED401) | | |
| | IEC60601-2-10,<br>ISO10993-1 | IEC60601-2-10,<br>ISO10993-1 | IEC60601-2-10,<br>ISO10993-1 | IEC60601-2-10,<br>ISO10993-1 | IEC60601-2-10,<br>ISO10993-1 | | |
| Compliance with 21 CFR898? | Yes | Yes | Yes | Yes | Not publicly available | Same | |
| Weight | 15.5 g | 80 g | 106 g | 282 g | 0.35 lbs. | Different | |
| Dimensions [W×H×D] | 54.8×35.6×10.8 | 70×69×44 | 70×70×70 mm | 137×96×41 | 76×129.7×35.1 mm | Different | |
| Housing materials and construction | ABS | PMMA, ABS | PMMA and ABS | ABS | ABS | Same | |
| Note: Although the "Number of Output Modes", "Number of Output Channels", "Automatic Overload Trip", "Automatic No-Load Trip", "Indicator Display",<br>"Timer Range", "Weight" and "Dimensions" of subject device are different from that of the predicate devices, they all comply with IEC 60601-1, IEC60601-<br>1-2, IEC 60601-2-10 and ISO10993-1 requirements. Hence, differences will not affect the safety and effectiveness of subject device. | | | | | | | |
| Waveform | Biphasic wave | Biphasic wave | Biphasic wave | Biphasic wave | Biphasic wave | Different | |
| Shape (e.g., rectangular, spike,<br>rectified sinusoidal) | Square | Square | Square | Square | Square | Different | |
| Maximum Output<br>Voltage | @500Ω | 73.19 Vpp | 66.4 Vpp | 33.4 Vpp | 73.19 Vpp | Not publicly<br>available | Different |
| | @2KΩ | 94.22 Vpp | 107.6 Vpp | 66 Vpp | 52 Vpp | Not publicly<br>available | |
| | @10KΩ | 113.1 Vpp | 129.6 Vpp | 117.2 Vpp | 52 Vpp | Not publicly<br>available | |
| Maximum Output<br>Current | @500Ω | 146.38 mA | 132.8 mA | 66.8 mA | 96 mA | Not publicly<br>available | Different |
| | @2KΩ | 47.11 mA | 53.8 mA | 33 mA | 26 mA | Not publicly<br>available | |
| | @10KΩ | 11.31 mA | 12.96 mA | 11.72 mA | 5.2 mA | Not publicly<br>available | |
| | Subject Device | | | | Predicate device | Substantially<br>equivalence | |
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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.