iHelmet Hair Growth System, Model: LTD200S is indicated to promote hair growth in females with androgenetic alopecia who have Ludwig-Savin Classifications of I-II, in males with androgenetic alopecia who have Norwood-Hamilton Classifications of Ila-V and for both, Fitzpatrick Classification of Skin Phototypes I to IV.
Device Story
iHelmet Hair Growth System is a wearable helmet device containing 200 laser diodes for treating androgenetic alopecia. Device uses diode lasers (650nm) to provide full scalp coverage without manual movement. Integrated sensors detect head proximity; device pauses treatment if head is not in close proximity and resumes when detected. Audible tone signals treatment completion, followed by automatic shut-off. Intended for home use by patients. Healthcare providers use the device to promote hair growth; output is non-ionizing laser light. Benefits include non-invasive hair growth stimulation. Operational context is home-based; patient self-operates.
Clinical Evidence
Bench testing only. No clinical data provided. Safety and performance verified via IEC 60601-1 (electrical safety), IEC 60601-1-2 (EMC), IEC 60825-1 (laser safety), IEC 60601-1-11 (home use), and ISO 10993-5/10 (biocompatibility). Temperature testing confirmed scalp contact temperature does not exceed 43°C.
Technological Characteristics
Infrared lamp (21 CFR 890.5500). 200 laser diodes (650nm ±10nm). Class 3R laser. Power: 4-5mW per diode. Irradiance: 2.3533 mW/cm2. Fluence: 4.9420 J/cm2. Dimensions: 266mm x 196mm x 135mm. Weight: 600g. Biocompatible materials per ISO 10993. Powered by internal electronics with proximity sensor feedback loop.
Indications for Use
Indicated for females with androgenetic alopecia (Ludwig-Savin I-II) and males with androgenetic alopecia (Norwood-Hamilton IIa-V), Fitzpatrick Skin Phototypes I-IV, to promote hair growth.
Regulatory Classification
Identification
An infrared lamp is a device intended for medical purposes that emits energy at infrared frequencies (approximately 700 nanometers to 50,000 nanometers) to provide topical heating.
Special Controls
*Classification.* Class II (special controls). The device, when it is an infrared therapeutic heating lamp, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 890.9.
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Image /page/0/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. Inside the circle is a stylized image of three human profiles facing to the right, stacked on top of each other.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
April 4, 2017
Slinph Technologies Co., Ltd % Cecilia Ceng Manager Guangzhou Glomed Biological Technology Co., Ltd. Suite 306, Kecheng Mansion, No.121 Science Road Guangzhou Science Park Guangzhou, 510663 CN
Re: K162782
Trade/Device Name: Ihelmet Hair Growth System Regulation Number: 21 CFR 890.5500 Regulation Name: Infrared Lamp Regulatory Class: Class II Product Code: OAP Dated: March 6, 2017 Received: March 9, 2017
Dear Cecilia Ceng:
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. Iisting 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.
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
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Part 807); labeling (21 CFR Part 801); medical device reporting of medical devicerelated adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (OS) 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 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 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, Jennifer R. Stevenson -S For Binita S. Ashar, M.D., M.B.A., F.A.C.S. Director
Division of Surgical Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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## Indications for Use
510(k) Number (if known) K162782
Device Name
iHelmet Hair Growth System (Model: LTD200S)
Indications for Use (Describe)
iHelmet Hair Growth System (Model: LTD200S) is indicated to promote hair growth in females with androgenetic alopecia who have Ludwig-Savin Classifications I - II, in males with androgenetic alopecia who have Norwood Hamilton Classifications IIa - V and for both, Fitzpatrick Classification of Skin Phototypes of I - IV.
Type of Use (Select one or both, as applicable)
Prescription Use (Part 21 CFR 801 Subpart D)
|X | Over-The-Counter Use (21 CFR 801 Subpart C)
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### Chapter 6. 510(k) Summary
# 510(k) Summary
This summary of 510(K) safety and effectiveness information is being submitted in accordance with the requirements of SMDA and 21 CFR 890.5500.
#### 1. Submitter Information
Sponsor Name: Slinph Technologies Co., Ltd. Address: Room 211, Building B, 1970 Cultural and Creative Industrial Park, Minzhi Street, Longhua, Shenzhen, China. Contact name: Zou Jian (General Manager) Tel: +86-158 1556 8501 Fax: 0755-83461353 Email: kevinzou@slinph.com
### Application Correspondent:
Contact Person: Ms. Cecilia Ceng Guangzhou GLOMED Biological Technology Co., Ltd. Tel: +86-20-61099984 Email: regulatory@glomed-info.com
#### 2. Subject Device Information
| Type of 510(k): | Traditional |
|----------------------|-------------------------------------------------|
| Common Name: | Lamp, non-heating, for promotion of hair growth |
| Trade Name: | iHelmet Hair Growth System |
| Classification Name: | Infrared lamp per 21 CFR 890.5500 |
| Review Panel: | General & Plastic Surgery |
| Product Code: | OAP |
| Regulation Number: | 21 CFR 890.5500 |
| Regulation Class: | 2 |
#### 3. Predicate Device Information
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Sponsor: Slinph Technologies Co., LTD Subject Device: iHelmet Hair Growth System, Model: LTD200S File No.: 510(k) submission report (V1.0), Chapter 6
| Sponsor | Capillus, LLC. |
|---------------------|-------------------------------------------------|
| Common Name | Lamp, non-heating, for promotion of hair growth |
| Trade Name | Capillus272, Capillus202, Capillus82 |
| Classification Name | Infrared lamp per 21 CFR 890.5500 |
| 510(k) number | K153618, K160285, K163170 |
| Review Panel | General & Plastic Surgery |
| Product Code | OAP |
| Regulation Number | 21 CFR 890.5500 |
| Regulation Class | 2 |
#### 4. Device Description
iHelmet Hair Growth System consists of laser diodes that are spread throughout the helmet. The product uses diode lasers to cover the entire area of the head that is normally covered with hair, and this unique design allows the treatment of the entire scalp without manual movement. The product will pause automatically treatment if the sensor detects that the head is not in close proximity to the sensor, and will resume again once close enough. At the end of the treatment, an audible tone beeps to indicate the treatment is over and then the helmet automatically shut off.
#### 5. Intended Use
iHelmet Hair Growth System, Model: LTD200S is indicated to promote hair growth in females with androgenetic alopecia who have Ludwig-Savin Classifications of I-II, in males with androgenetic alopecia who have Norwood-Hamilton Classifications of Ila-V and for both, Fitzpatrick Classification of Skin Phototypes I to IV.
#### Test Summary 6.
iHelmet Hair Growth System has been evaluated the safety and performance by lab bench testing according to the following standards:
| Standards No. | Standard Title | Version | Date |
|---------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------|------------|
| IEC 60601-1 | Medical Electrical Equipment - Part 1:<br>General Requirements for Safety | 2005+A1:2012 | 01/14/2014 |
| IEC 60601-1-2 | Medical electrical equipment - Part 1-2:<br>General requirements for basic safety<br>and essential performance - Collateral<br>standard: Electromagnetic<br>compatibility - Requirements and tests | 2001+A1:2006 | 09/09/2008 |
| IEC 60825-1 | Safety of laser products - Part 1:<br>Equipment classification and<br>requirements | 2007 | 03/2007 |
| IEC60601-1-11 | Medical Electrical Equipment - Part 1- | 2010 | 03/1/2011 |
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| | 11: General Requirements for Basic<br>Safety and Essential Performance -<br>Collateral Standard: Requirements for<br>Medical Electrical Equipment and<br>Medical Electrical Systems Used | | |
|---------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------|------------|
| ISO 10993-5<br>(Cytotoxicity) | Biological evaluation of medical<br>devices - Part 5: Tests for In Vitro<br>cytotoxicity | 2009 | 05/05/2010 |
| ISO 10993-10<br>(Sensitization and<br>Irritation) | Biological evaluation of medical<br>devices - Part 10: Tests for irritation<br>and skin sensitization | 2010 | 03/16/2010 |
Except for the tests mentioned above, we have conducted the temperature test on the iHelmet Hair Growth System to prove that the highest temperature between iHelmet Hair Growth System and scalp would not exceed 43°C during operation, which is meet the requirement of safety standard IEC 60601-1.
#### 7. Comparison to Predicate Device
Compare with predicate device, the subject device is very similar in design principle, intended use, indications for use, functions, material and the applicable standards. The differences between subject device and predicate device do not raise and new questions of safety or effectiveness.
| Elements of<br>Comparison | Subject Device | Predicate Device | Verdict |
|------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------|
| Company | Slinph Technologies Co., Ltd. | Capillus LLC | -- |
| Trade Name | iHelmet Hair Growth System | Capillus272, Capillus202,<br>Capillus82 | -- |
| Classification<br>Name | Infrared Lamp | Infrared Lamp | -- |
| 510(k) Number | K162782 | K153618, K160285, K163170 | -- |
| Product Code | OAP | OAP | SE |
| Intended Use /<br>Indications for<br>Use | iHelmet Hair Growth System<br>(Model: LTD200S) is<br>indicated to promote hair<br>growth in females with<br>androgenetic alopecia who<br>have Ludwig-Savin<br>Classifications I - II, in males<br>with androgenetic alopecia<br>who have Norwood Hamilton<br>Classifications Ila - V and for<br>both, Fitzpatrick<br>Classification of Skin<br>Phototypes of I - IV. | The Capillus272, Capillus202,<br>Capillus82 are intended to treat<br>Androgenetic Alopecia and<br>promote hair growth in males<br>who have Norwood Hamilton<br>Classifications of Ila to V<br>patterns of hair loss and to<br>treat Androgenetic Alopecia<br>and promote hair growth in<br>females who have Ludwig<br>(Savin) Scale I-1 to I-4, II-1, II-<br>2, or frontal; both with<br>Fitzpatrick Skin Types I to IV. | SE |
| Waveform | Visible red laser | Visible red laser | SE |
| Wavelength | 650nm±10nm | 650nm | SE |
| Amounts of | 200 | Capillus272: 272 | SE |
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Sponsor: Slinph Technologies Co., LTD Subject Device: iHelmet Hair Growth System, Model: LTD200S
| Elements of<br>Comparison | Subject Device | Predicate Device | Verdic |
|----------------------------------------------|--------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------|--------------|
| Laser Lamp | | Capillus202: 202<br>Capillus82: 82 | Note 1 |
| Energy of per<br>Laser Lamp | 4~5mW | <5mW | SE |
| Classification<br>according to<br>IEC60825-1 | Class 3R | Class 3R | SE |
| Treatment Time | Each Treatment: 20-35 min<br>Total Treatment: every other<br>day, for 16 weeks | Each Treatment: 30 min<br>Total Treatment: every other<br>day, for 17 weeks. | SE<br>Note 1 |
| Treatment Area | 424.93 cm2<br>Mathematically Max. derived | Capillus272: 495.37 cm2<br>Capillus202: 449.51 cm2<br>Capillus82: 194.42 cm2<br>Mathematically Max. derived | SE<br>Note 1 |
| Irradiance<br>(power per area) | 2.3533 mW/cm2<br>Mathematically Max. derived | Capillus272: 2.7454 mW/cm2<br>Capillus202: 2.2469 mW/cm2<br>Capillus82: 2.1088 mW/cm2<br>Mathematically Max. derived | SE<br>Note 1 |
| Fluence | 4.9420 J/cm2<br>Mathematically Max. derived | Capillus272: 4.9417 J/cm2<br>Capillus202: 4.044 J/cm2<br>Capillus82: 3.7920 J/cm2<br>Mathematically Max. derived | SE<br>Note 1 |
| Dimension | 266mm x 196mm x 135mm<br>(L x W x H) | -- | SE<br>Note 2 |
| Weight | 600g | -- | SE<br>Note 2 |
| Environment for<br>Operation | Temperature: 15~30°C<br>Humidity: 30~80% RH<br>Atmosphere range:<br>90~110kPa | -- | SE<br>Note 2 |
dict te 1
SE
SE
SE
Note 2
510(k) submission report (V1.0), Chapter 6 File No.:
Humidity: 0~ 80% RH
Complied with IEC 60601-1
materials are complied with
ISO 10993-5, ISO 10993-10
Atmosphere range:
and IEC 60601-1-2
All patient contacting
50~110kPa
### Comparison in Detail(s):
Environment for
Safety Feature
Biocompatibility
Storage
Feature
### Note 1:
Although the "Amounts of Laser Lamp", "Treatment Time", "Treatment Area", "Irradiance", and "Fluence" of subject device and predicate device are a little difference, the energy and power parameters' range of subject device can be covered by predicate device's several models' range; they are very similar. So these parameters' differences will not raise any safety or effectiveness issue.
--
Complied with IEC 60601-1
All patient contacting materials
are complied with ISO 10993-
and IEC 60601-1-2
5, ISO 10993-10
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### Note 2:
Although the "Weight", "Dimensions", "Environment for Operation", "Environment for Storage" of subject device are different from the predicate device, it will not affect the main function and the intended use of the device as they all also comply with IEC 60601-1 requirements. Besides, the subtle changes of the physical characteristics will not affect the critical functions or the normal use.
### 8. Conclusion
The subject device iHelmet Hair Growth System has all features of the predicate devices. The few differences do not affect the safety and effectiveness of the subject device. Thus, the subject device is substantially equivalent to the predicate devices.
### 9. Summary Prepared Date
2 April 2017
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.