K153184 · Shenzhen Caremed Medical Technology Co., Ltd. · DQA · Jan 4, 2017 · Cardiovascular
Device Facts
Record ID
K153184
Device Name
Caremed Reusable & Disposable SPO2 Sensors
Applicant
Shenzhen Caremed Medical Technology Co., Ltd.
Product Code
DQA · Cardiovascular
Decision Date
Jan 4, 2017
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 870.2700
Device Class
Class 2
Attributes
Pediatric
Indications for Use
Caremed Reusable & Disposable SPO2 Sensors are indicated for continuous non-invasive monitoring of functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate(PR) for adult patients weighing greater than 40 kg and pediatric patients weighing 10 -50 kg at hospital facilities.
Device Story
Device consists of reusable and disposable SpO2 sensors; utilizes optical plethysmography to measure arterial hemoglobin oxygen saturation. Sensor contains two LEDs (red and infrared) and one photodiode; illuminates arterially perfused tissue (fingers or toes) to detect light absorption. Output is transmitted to compatible patient monitors (e.g., Nellcor, Masimo) for display of SpO2 and pulse rate. Used in hospital environments by clinicians to monitor patient oxygenation status; provides real-time data for clinical decision-making regarding respiratory or cardiovascular status. Benefits include non-invasive, continuous monitoring of patient oxygen levels.
Clinical Evidence
Clinical hypoxia testing performed on human adult volunteers. Accuracy validated against arterial oxygen saturation (SaO2) measured by co-oximetry. Results support accuracy claims within the specified saturation range.
Technological Characteristics
Optical sensor with two LEDs (Red: 660-666nm, IR: 880-950nm) and photodetector. Materials include ABS, PVC, TPU, silicone, and sponge. Compatible with Nellcor and Masimo monitors. Conforms to IEC 60601-1, IEC 60601-1-2, ISO 80601-2-61, and ISO 10993-5/10.
Indications for Use
Indicated for continuous non-invasive monitoring of functional oxygen saturation (SpO2) and pulse rate (PR) in hospital facilities for adult patients >40 kg and pediatric patients 10-50 kg.
Regulatory Classification
Identification
An oximeter is a device used to transmit radiation at a known wavelength(s) through blood and to measure the blood oxygen saturation based on the amount of reflected or scattered radiation. It may be used alone or in conjunction with a fiberoptic oximeter catheter.
Predicate Devices
Solaris Medical Technology, Inc. Reusable & Disposable SPO2 Sensors (K100077)
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
January 04, 2017
Shenzhen Caremed Medical Technology Co., Ltd. Xinlin Xiao OA Manager Zone B, 3/F, 11 Building, Hebei Industrial Area Longhua Office, Longhua New District Shenzhen, Guangdong 518021 China
Re: K153184
Trade/Device Name: Caremed Reusable & Disposable SpO2 Sensors Regulation Number: 21 CFR 870.2700 Regulation Name: Oximeter Regulatory Class: Class II Product Code: DQA Dated: June 13, 2016 Received: December 5, 2016
Dear Xinlin Xiao:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food. Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical devicerelated adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in
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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 yours,
Tejashri Purohit-Sheth, M.D. Clinical Deputy Director
Tejashri Purohit-Sheth, M.D. DAGRID/ODE/CDRH FOR
Tina Kiang, Ph.D. Acting Director Division of Anesthesiology, General Hospital. Respiratory. Infection Control and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K153184
Device Name
Caremed Reusable & Disposable SPO2 Sensors
#### Indications for Use (Describe)
Caremed Reusable & Disposable SPO2 Sensors are indicated for continuous non-invasive monitoring of functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate(PR) for adult patients weighing greater than 40 kg and pediatric patients weighing 10 -50 kg at hospital facilities
Type of Use (Select one or both, as applicable)
| <span style="font-family: sans-serif;">☑</span> Prescription Use (Part 21 CFR 801 Subpart D) |
|----------------------------------------------------------------------------------------------|
| <span style="font-family: sans-serif;">☐</span> Over-The-Counter Use (21 CFR 801 Subpart C) |
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# Section 5
510(K) Summary
## 1. Prepared Date: 2017/1/3
#### 2. Submitter Information
| Name | Shenzhen Caremed Medical Technology Co., Ltd. |
|---------|-------------------------------------------------------------------------------------------------------|
| Address | Zone B, 3/F, 11 Building, Hebei Industrial Area, Longhua office, Longhua New District, Shenzhen,China |
| Tel | 0086-755-27184369 |
| Fax | 0086-755-27186486 |
#### 3. Contact Person
| Contact person | Xinling Xiao |
|----------------|--------------------------------------------------------------------------------------------------------|
| Title | QA manager |
| Address | Zone B, 3/F, 11 Building, Hebei Industrial Area, Longhua office, Longhua New District, Shenzhen, China |
| Tel | 0086-755-27184369 |
| Fax | 0086-755-27186486 |
| E-mail | xinling.xiao@gmail.com |
#### 4. Proposed Device Information
| Trade Name | Caremed Reusable & Disposable SPO2 Sensors |
|-----------------------|--------------------------------------------|
| Model | C403-01,C403S-15&N543-01 |
| Common name | Oximeter |
| Regulatory class | II |
| Production regulation | 21 CFR §870.2700 |
| Product code | DQA |
| Panel | Cardiovascular |
#### 5. Predicate Device Information
| 510(K)No. | Trade Name/model | Submitter |
|-----------|------------------------------------------------------------------------|----------------------------------|
| K100077 | Solaris Medical Technology, Inc.<br>Reusable & Disposable SPO2 Sensors | Solaris Medical Technology, Inc. |
| K111888 | Masimo LNOP/M-LNCS/LNCS<br>Multisite-L Oximetry Sensors | Masimo Corporation |
#### 6. Device description
Caremed Reusable & Disposable SPO2 Sensors use optical means to determine the light absorption of functional arterial hemoglobin by being connected between the Caremed Reusable & Disposable SPO2 Sensors -510(k) Submission Page 1 of 6
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patient and the patient monitor or oximeter device. The probe contains three optical components: two light emitting diodes (LED) that serve as light sources and one photodiode that acts as a light detector. The LED and photodiode are contained in sensor housing.
| Model | Description | Compatible<br>Monitor |
|----------|----------------------------------------------------|-------------------------|
| C403-01 | Nellcor Adult Reusable Finger Clip SpO2 Sensor | N395 |
| C403S-15 | Masimo Adult Reusable Soft tip SpO2 Sensor | Masimo Radical<br>Rad-8 |
| N543-01 | Nellcor Adult Disposable Non- Adhesive SpO2 Sensor | N395 |
Three models of sensors are described as follows:
# 7. Intended use
Caremed Reusable & Disposable SPO2 Sensors are indicated for continuous non-invasive monitoring of functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate(PR) for adult patients weighing greater than40kg and pediatric patients weighing 10 -50 kg at hospital facilities.
# 8. Comparison to predicate device
Caremed Reusable & Disposable SPO2 Sensors use the same technological characteristics as the predicate devices to determine arterial oxygen saturation: arterially perfused tissue is illuminated sequentially by two wavelengths of LEDs, and the time varying absorbance of the tissue is measured by a photodetector.
Based on the following comparison, both device have same intended use,working principle ,measurement part,compatibility ,only in technical parameters and cable length have slightly difference. But the subject devices have passed IEC60601-1,IEC60601-1-2,ISO80601-2-61&performance testing, so these difference does not raise different questions of safety or effectiveness. Please see the following comparison table:
Table 1
| Comparis<br>on item | Subject Device<br>Caremed Reusable and<br>disposable SPO2 sensor<br>compatibility with Nellcor<br>(Model:C403-01,C403S-15<br>&N543-01) | Predicate Device<br>Reusable and disposable<br>SPO2 sensor compatibility<br>with Nellcor<br>(model:T100A-090103 and<br>DP100A-090103)<br>K100077 | Predicate Device<br>Adult and pediatric/slender<br>digit spo2 sensor (model:<br>LNOP DCI series)<br>K111888 |
|-----------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | | | |
| Intended<br>use&<br>Indications for Use | Caremed Disposable and<br>Reusable SPO2 Sensors are<br>indicated for continuous<br>non-invasive monitoring of<br>functional oxygen<br>saturation of arterial<br>hemoglobin (SpO2) and<br>pulse rate(PR) for adult<br>patients weighing greater<br>than40kg and pediatric<br>patients weighing 10 -50 kg | When used with a<br>compatible patient monitor<br>or a pulse oximeter device,<br>Solaris Medical Technology,<br>Inc. reusable & disposable<br>SpO2 sensors are intended<br>to be used for continuous,<br>non-invasive functional<br>arterial oxygen saturation<br>(SpO2)<br>and pulse rate monitoring.<br>Solaris Medical Technology,<br>Inc. reusable multi-patient<br>use SpO2 Soft Sensors,<br>reusable multi-patient use<br>SpO2 Finger Sensors, and<br>disposable single patient<br>use SpO2 Soft-finger<br>Sensors are for use with<br>adult/pediatric patients<br>weighing greater than 40kg.<br>Solaris Medical Technology,<br>Inc. disposable single<br>patient use SpO2 Adhesive<br>Sensors are for use with<br>adult patients weighing<br>greater than 40kg, pediatric<br>patients weighing 10 - 40<br>kg, and infant<br>(non-neonatal) patients<br>weighing 3 - 15kg.<br>Prescription device. | The Masimo<br>LNOP/M-LNCS/LNCS<br>Multisite-L Oximetry<br>Sensors are indicated for<br>the continuous noninvasive<br>monitoring of functional<br>oxygen saturation of<br>arterial<br>hemoglobin (SPO2) and<br>pulse rate (measured by an<br>SPO2 sensor) for use with<br>adult, pediatric, infant, and<br>neonatal patients during<br>both no motion and motion<br>conditions, and for patients<br>who are well or poorly<br>perfused in hospitals,<br>hospital-type facilities,<br>mobile, and home<br>environments. |
| | Measurement<br>Method | 2-wavelength Relative<br>Optical Absorption | 2-wavelength Relative<br>Optical Absorption |
| | Light<br>Emitting | Red:660-666nm,<br>Ired:880-950nm | Red:660-666nm,<br>Ired:880-950nm |
| | Signal<br>Detection<br>Method | Photodetector | Photodetector |
| | SPO2<br>Accuracy | $\pm$ 3%(70-100%) | $\pm$ 2%(70-100%) |
| Pulse<br>Rate<br>Accuracy | ±3(30-250bpm) | ±2(30-250bpm) | ±3(30-250bpm) |
| Applied<br>population | C403-01 & C403S-15:<br>Adult(≥40Kg)<br>N543-01: Adult(≥40Kg) &<br>Pediatric(10-50Kg) | Adult(≥40Kg) | Adult(≥30Kg) |
| Measurement part | Fingers or toes | Fingers or toes | Fingers or toes |
| compatible monitor | Nellcor Non oximax<br>(N395)& Masimo set | Nellcor Non oximax (N395) | Masimo set |
| Sterility | No | No | No |
| Usage | Reusable&disposable | Reusable&disposable | Reusable |
| Material | ABS,PVC,TPU,Silicone,<br>sponge | ABS,PVC,Silicone and 3M | ABS,PVC,TPU,Silicone |
| Cable<br>Length | 1.1 | 0.9 | 0.9 |
| Proximal<br>connector<br>Design | DB9 9pin&1269 LNOP DC | DB9 7pin | 1269 LNOP DC |
| Distal<br>connector<br>Design | finger clip and sponge<br>adhesive | soft tip and textile adhesive | finger clip |
| Conformance<br>standard | IEC60601-1,IEC60601-1-2,<br>ISO80601-2-61,ISO10993-<br>5/10 | IEC60601-1,IEC60601-1-2,<br>ISO80601-2-61,ISO10993-<br>5/10 | IEC60601-1,IEC60601-1-2,<br>ISO80601-2-61,ISO10993-<br>5/10 |
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Caremed Reusable & Disposable SPO2 Sensors -510(k) Submission
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From the comparison form above, both devices have the same Measurement Method, Light Emitting, Signal Detection Method, Measurement part, compatible monitor, Sterility, Usage & Conformance standard.
In Intended use& Indications for Use, SPO2 & Pulse Rate Accuracy, Applied population, Material item, both devices have some differences; please see the following analyses.
# Note1 Intended use, Indications for Use& Applied population
The C403-01 is intended use for adult keeping still in in hospital environment which is same as predicate device T100A-090103. And the applied population of C403S-15 is adult with no motion which is slightly difference from the predicate device LNOP DCI series sensor. The N543-01 will be intended use for adult and Pediatric patients weighting 10-50Kg, which are same as the Nellcor(OEM) spo2 sensor. The subject Caremed Reusable & Disposable SPO2 Sensors -510(k) Submission Page 4 of 6
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device has passed the IEC60601-1, IEC60601-1-2and ISO80601-2-61, so this difference does not raise different questions of safety and effectiveness.
## Note2 SPO2 Accuracy & Pulse Rate Accuracy
The SPO2&Pulse rate Accuracy of subject device has slightly difference from the predicate device. But, the subject device's SPO2&Pulse rate Accuracy meets the requirement of ISO80601-2-61,so this difference also does not raise different questions of safety and effectiveness.
## Note3 Material
The reusable spo2 sensor of both device have the same material of patient end, only the cable connecting with skin material is different, the subject device's is TPU, and the predicate device's is PVC. The patient end of Caremed disposable sensors is sponge adhesive, but the subject device meets the requirements of ISO10993-5/10, so this difference also does not raise different questions of safety and effectiveness.
# According to contrast and analysis, the differences between subject device and predicate device does not raise different questions of safety and effectiveness.
#### 9. Non-clinical test data
The subject device meets the following the recognized standards:
- IEC 60601-1 Medical Electrical Equipment-Part 1: General Requirements for Safety, 2005
- IEC 60601-1-2 Medical Electrical Equipment-Part 1-2: General Requirements for Safety -Collateral Standard: Electromagnetic Compatibility-Requirements and Tests, 2007
- ISO 80601-2-61 Medical electrical equipment - Part 2-61: Particular requirements for basic safety and essential performance of pulse oximeter equipment
- ISO 10993-5, Biological evaluation of medical devices-Part 5: Tests for In Vitro cytotoxicity, 2009
- ISO 10993-10, Biological evaluation of medical devices-Part 10: Tests for irritation and delayed-type hypersensitivity, 2010
# 10. Clinical test data
Clinical testing has been performed under an approved protocol with subject informed consent. Clinical hypoxia test results were obtained in human adult volunteers to validate the accuracy of Caremed Reusable & Disposable SPO2 Sensors versus arterial oxygen saturation (SaO2) as determined by co-oximetry. Clinical test results support device accuracy claims for the specified saturation range.
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# 11. Conclusions
Based on the comparison, analysis, and the submitted performance data, Caremed Reusable & Disposable SPO2 Sensors are substantially equivalent to the predicate devices.
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.