K020504 · Radiant Innovation, Inc. · FLL · Feb 28, 2002 · General Hospital
Device Facts
Record ID
K020504
Device Name
INFRARED EAR THERMOMETER, MODELS TH88 SERIES
Applicant
Radiant Innovation, Inc.
Product Code
FLL · General Hospital
Decision Date
Feb 28, 2002
Decision
SESE
Submission Type
Special
Regulation
21 CFR 880.2910
Device Class
Class 2
Attributes
Pediatric
Indications for Use
The device is an electronic clinical thermometer using an infrared sensor to detect body temperature from the auditory canal in the neonatal, pediatric and adult population used in the home setting.
Device Story
Electronic infrared ear thermometer; detects thermal radiation from tympanic membrane and auditory canal via thermopile detector. User inserts probe into outer ear canal; presses start button. Device amplifies electrical signal; performs calculation; displays temperature on LCD. Used in home setting by patients or caregivers. Provides rapid temperature readings to assist in clinical decision-making regarding fever management.
Clinical Evidence
Bench testing only. Compliance with ASTM E1965, IEC 60601-1, and IEC 60601-1-2 standards.
Technological Characteristics
Infrared thermopile detector; electronic circuitry for signal amplification and calculation; LCD display. Complies with ASTM E1965, IEC 60601-1, and IEC 60601-1-2.
Indications for Use
Indicated for neonatal, pediatric, and adult populations for body temperature measurement via the auditory canal in a home setting.
Regulatory Classification
Identification
A clinical electronic thermometer is a device used to measure the body temperature of a patient by means of a transducer coupled with an electronic signal amplification, conditioning, and display unit. The transducer may be in a detachable probe with or without a disposable cover.
Special Controls
(1) Device is not a clinical thermometer with telethermographic functions;
(2) Device is not a clinical thermometer with continuous temperature measurement functions; and
(3) Appropriate analysis and testing (such as that outlined in the currently FDA-recognized editions, as appropriate, of ISO 80601-2-56, “Medical electrical equipment—Part 2-56: Particular requirements for basic safety and essential performance of clinical thermometers for body temperature measurement,” or ASTM E1965, “Standard Specification for Infrared Thermometers for Intermittent Determination of Patient Temperature,” or ASTM E1112, “Standard Specification for Electronic Thermometer for Intermittent Determination of Patient Temperature,” or ASTM E1104, “Standard Specification for Clinical Thermometer Probe Covers and Sheaths”) must validate specifications and performance of the device.
Predicate Devices
Radiant Innovation Infrared Ear Thermometer, Models TH8 series (K011059)
Submission Summary (Full Text)
{0}------------------------------------------------
### EXHIBIT#1
# FEB 2 8 2002
# Special 510(K) SUMMARY
This summary of Special 510(k) safety and effectiveness information is being submitted in accordance with the requirements of SMDA 1990 and 21 CFR §807.92.
The assigned 510(k) number is:
#### Submitter's Identification: 1.
Radiant Innovation Inc., No. 40, Lane 19, Bade Road Hsin-Chu City Taiwan, R.O.C.
### Contact:
Mr. Charles Chang Eng. Dep. Manager
Date Summary Prepared: Feb/07/2002
#### Name of the Modification Device: 2.
Infrared Ear Thermometer, Models TH88 series
#### 3. Current Clearance Device:
Radiant Innovation Infrared Ear Thermometer, Models TH8 series. ( FDA# K011059)
#### Device Description: 4.
The Radiant Innovation Inc., Infrared Ear Thermometer, Models TH88 series are electronic thermometers using an infrared detector (thermopile detector) to detect body temperature from the auditory canal. Its operation is based on measuring the natural thermal radiation emanating from the tympanic membrane and the adjacent surfaces of the patient.
To measure ear temperature, the ear thermometer is inserted into a patient's outer ear canal. A start button is pressed to start the measurement through the radiation exchanges. The electrical signal read out from the detector is fed to the circuit for amplification and The total The measured temperature then appears on a LCD display. calculation. operation takes a few seconds.
{1}------------------------------------------------
Image /page/1/Picture/0 description: The image shows the logo for RADIANT INNOVATION Inc. The logo is in black and white and features the company name in both English and Chinese. The English name is in a bold, sans-serif font, while the Chinese name is in a traditional, serif font. The logo also includes a small graphic of a lightbulb.
#### Intended Use: 5.
The device is an electronic clinical thermometer using an infrared sensor to detect body The device is an crocronic childed in the neonatal, pediatric and adult population used in the home setting.
#### Comparison to the Cleared Devices: 6.
The RII Infrared Ear Thermometer, Models TH88 series are substantially equivalent to THE CHI Intrared Dar Internice Ear Thermometer, Models TH8 series, on the principle of operation, scientific technology with the same intended use, technological characteristics and specifications.
The only differences between TH8 and TH88 series Infrared Ear Thermometer are the outer appearance and addition operation procedures for probe cover installation on the user's manual which will not significantly change the safety and effectiveness .
### Tests Performed for Determination of Substantial Equivalence are as follows: 7.
Compliance to applicable voluntary standards includes ASTM E1965, as well as IEC 60601 -1 and IEC 60601-1-2 requirements.
Guidance Documents included the FDA "Guidance On The Content of Premarket Satuation (51 0(k)) Submissions for Clinical Electronic Thermometers", " How to Prepare A Special 510(k) ", "Deciding When to Submit a 510(k) for a Change to an Existing Device"..
#### 9. Conclusions:
The RII Infrared Ear Thermometer, Models TH88 series, have the same intended use and similar characteristics as the cleared device, Model TH8 series. Moreover, bench testing contained in this submission supplied demonstrate that the modification of TH88 do not Thus, the RII Infrared Ear raise any new questions of safety or effectiveness. Thermometer, Models TH88 series is substantially equivalent to the predicate device.
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Image /page/2/Picture/1 description: The image shows the seal of the Department of Health & Human Services - USA. The seal is circular and contains the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. In the center of the seal is an abstract image of an eagle.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850.
# FEB 2 8 2002
Radiant Innovation, Incorporated C/O Ms. Susan D. Goldstein-Falk MDI Consultants, Incorporated 55 Northern Boulevard, Suite 200 Great Neck, New York 11021
Re: K020504
Trade/Device Name: Infrared Ear Thermometer, Models TH88 Series Regulation Number: 880.2910 Regulation Name: Clinical Electronic Thermometer Regulatory Class: II Product Code: FLL Dated: February 13, 2002 Received: February 15, 2002
Dear Ms. Falk:
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.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to such 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.
{3}------------------------------------------------
### Page 2 - Ms. Falk
You must comply with all the Act's requirements, including, but not limited to: registration You must comply with an the Act 3 requirements and 801); good manufacturing practices
and listing (21 CFR Part 807); labeling (21 CFR Part 801); gEP Part 800); and i and listing (21 CFK Part 807), laboling (21 CFR Pat 820); and if (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
This letter will allow you to begin marketing your device as described in your Section This letter will anow you to begin manoung your substantial equivalence of your device to 510(K) premiarket notification. The I Drivinalig as ification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801 II you desire specific ad rior for your for in vitro diagnostic devices), please contact the and additionally 21 CFR Part 607.10 Ios in 100 milly, for questions on the promotion and
Office of Compliance at (301) 594-4618. Additionally, for questions on 1 (301) 504-4 Office of Comphance at (301) 591-1610. The Office of Compliance at (301) 594-4639. advertising of your ar agulation entitled, "Misbranding by reference to premarket Also, prease note the regulation on other general information on your responsibilities under nothication (ZTCPN Part 007.97). Oaks gold Manufacturers, International and the Act may be obtained from all Drivision of 2011 or (301) 443-6597 or at its
Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html
Sincerely yours,
Tim Director Division of Dental, Infection Control and General Hospital Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{4}------------------------------------------------
### #EXHIBIT B
## Indications for Use Statement
### Special 510(k) Number (if known):
Device Name: Radiant Innovation Inc. Infrared Ear Thermometer, Models TH88 series
Indications For Use:
...
The device is an electronic clinical thermometer using an infrared sensor to detect body temperature from the auditory canal in the neonatal, pediatric and adult population used in the home setting.
## (PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
### Concurrence of CDRH, Office of Device Evaluation (ODE)
Patricio Cucurete
(Division Sign-Off) Division of Dental, Infection Control, and General Hospital Devices F10(k) Number __ 020504
PrescriptionUse (Per 21 CFR 801.109)
OR
Over-The-Counter Use (Optional Format 1-2-96)
Page 12
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.