Guardian Angel Rx GA 1001 Digital Vital Sign Monitoring System
K182822 · Taiwan Aulisa Medical Devices Technologies, Inc. · DQA · Mar 1, 2019 · Cardiovascular
Device Facts
Record ID
K182822
Device Name
Guardian Angel Rx GA 1001 Digital Vital Sign Monitoring System
Applicant
Taiwan Aulisa Medical Devices Technologies, Inc.
Product Code
DQA · Cardiovascular
Decision Date
Mar 1, 2019
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 870.2700
Device Class
Class 2
Attributes
Pediatric
Indications for Use
The Guardian Angel Rx GA1001 Digital Vital Sign Monitoring System is indicated for use in measuring and displaying functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate. It is indicated for spot-checking and/or continuous monitoring of pediatrics and infants during non-motion and under well-perfused conditions. The intended environments of use are hospitals, medical facilities, home care, and subacute environments. This system is a reusable device.
Device Story
Digital vital sign monitoring system; measures SpO2 and pulse rate via non-invasive red/infrared sensor module (SM) worn on foot; wirelessly transmits data via Bluetooth to portable, table-top display unit (DU). Used in hospitals, medical facilities, home care, and subacute environments by clinicians or caregivers. Provides visual/auditory alarms for out-of-limit vital signs or technical errors. Enables remote monitoring of pediatric/infant patients; assists caregivers in clinical decision-making through real-time display and alerts.
Clinical Evidence
Clinical study conducted per ISO 80601-2-61:2011 (Clause 201.12.1.101.2/Annex EE.2) on healthy subjects under controlled induced hypoxia. Over 200 data points collected across 70%-100% SpO2 range. Results showed Arms < 3%, meeting FDA guidance requirements for pulse oximeter accuracy.
Technological Characteristics
Reusable system; foot-worn sensor module and table-top display unit. Red (660 nm) and Infrared (880 nm) LEDs. Bluetooth wireless connectivity. Powered by lithium batteries (SM/DU) and AC adaptor (DU). 10.1" LCD display. Complies with ISO 10993-1 (biocompatibility), IEC 60601-1, IEC 60601-1-11, IEC 60601-1-8, ISO 80601-2-61 (safety), and IEC 60601-1-2 (EMC).
Indications for Use
Indicated for pediatrics and infants for spot-checking and/or continuous monitoring of SpO2 and pulse rate in non-motion, well-perfused conditions. Environments: hospitals, medical facilities, home care, subacute.
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.
Guardian Angel GA1000 Digital Vital Sign Monitoring System (K162580)
Submission Summary (Full Text)
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Taiwan Aulisa Medical Devices Technologies, Inc. % Don Mizota Consultant Don Mizota 725 Morninghome Road Danville, California 94526
Re: K182822
Trade/Device Name: Guardian Angel Rx GA 1001 Digital Vital Sign Monitoring System Regulation Number: 21 CFR 870.2700 Regulation Name: Oximeter Regulatory Class: Class II Product Code: DQA Dated: January 28, 2019 Received: February 1, 2019
Dear Don Mizota:
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 mav, 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 avare 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.
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
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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/CombinationProducts/GuidanceRegulatoryInformation/ucm597488.html; good manufacturing practice requirements as set forth in the quality systems (OS) 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 http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/) and CDRH Learn (http://www.fda.gov/Training/CDRHLearn). 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 (http://www.fda.gov/DICE) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely.
# Todd D. Courtney -S
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) K182822
Device Name
Guardian Angel Rx GA1001 Digital Vital Sign Monitoring System
Indications for Use (Describe)
The Guardian Angel Rx GA1001 Digital Vital Sign Monitoring System is indicated for use in measuring and displaying functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate. It is indicated for spot-checking and/or continuous monitoring of pediatrics and infants during non-motion and under well-perfused conditions. The intended environments of use are hospitals, medical facilities, home care, and subacute environments. This system is a reusable device.
| Type of Use (Select one or both, as applicable) | |
|-------------------------------------------------------------------------------|------------------------------------------------------------------------------|
| <div> <span> </span> Prescription Use (Part 21 CFR 801 Subpart D) </div> | <div> <span> </span> Over-The-Counter Use (21 CFR 801 Subpart C) </div> |
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# Section 5: 510(k) Summary
This 510(k) Summary is being submitted in accordance with the requirements of 21 CFR 807.92
#### 5.1. General Information
| Date of Preparation: | February 1, 2019 |
|----------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Submitted by: | Taiwan Aulisa Medical Devices Technologies, Inc.<br>Rm. 1052, Bldg. H, 10F., No.3-2, YuanQu St.,<br>Nangang Dist., Taipei City 115 TW<br>Phone: 886-2-2655-7297<br>FAX: 886-2-2655-7260 |
| Contact Person: | Paul Liu<br>Regulatory Affairs Supervisor<br>Taiwan Aulisa Medical Devices Technologies, Inc.<br>Rm. 1052, Bldg. H, 10F., No.3-2, YuanQu St.,<br>Nangang Dist., Taipei City 115 TW<br>Phone: 886-2-2655-7297<br>FAX: 886-2-2655-7260<br>Email: paul.liu@aulisa.com |
#### 5.2. Trade/Device Name
Guardian Angel Rx GA1001 Digital Vital Sign Monitoring System
#### 5.3. Regulatory Information
- Regulation Number: 21 CFR 870.2700
- Regulation Name: Oximeter
- Regulation Class: Class II
- DQA Product Code:
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#### 5.4. Predicate
### Predicate device
K040589, Avant 9600 Digital Pulse Oximeter, Nonin Medical, Inc.
### Reference device
K162580. Guardian Angel GA1000 Digital Vital Sign Monitoring System
#### 5.5. Device Description
The subject device is a digital vital sign monitoring system that measures and displays a patient's pulse rate and oxygen saturation (SpO2). The subject device consists of a selfcontained foot-worn sensor module (SM) and a portable, table-top wireless display unit (DU). It uses non-invasive red and infrared technology to measure the pulse rate and SpO2. The measurements taken by the SM are wirelessly transmitted to the DU for display using Bluetooth technology. The subject device also provides visual and auditory alarms that alert the caregiver when a patient's pulse rate and/or SpO2 falls outside of preset limits or when a technical error is detected.
#### 5.6. Intended Use
The Guardian Angel Rx GA1001 Digital Vital Sign Monitoring System is indicated for use in measuring and displaying functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate. It is indicated for spot-checking and/or continuous monitoring of pediatrics and infants during non-motion and under well-perfused conditions. The intended environments of use are hospitals, medical facilities, home care, and subacute environments. This system is a reusable device.
#### 5.7. Comparison of Indications and Technological Characteristics
The subject device has similar intended use and technology characteristics to the predicate device. K040589, Avant 9600 Digital Pulse Oximeter, except that the subject device is indicated for a narrower range of patient population and environment of use than the predicate, and that the subject device wirelessly transmits data for remote display but the predicate does not.
The subject device uses a similar display unit as our reference device, K162580, Guardian Angel GA1000 Digital Vital Sign Monitoring System, which uses a liquidcrystal display (LCD) for display and Bluetooth technology for data transmission, except that the size of the display panel is enlarged.
The comparison table for the subject device versus the predicate device. K040589, and the reference device, K162580, is shown in Table 5.1.
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| Item | Subject Device | Predicate Device | Reference Device |
|------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Item | Guardian Angel Rx<br>GA1001 Digital Vital<br>Sign Monitoring System | Avant 9600 Digital Pulse<br>Oximeter (K040589) with<br>Reusable Flex Sensors | Guardian Angel GA1000<br>Digital Vital Sign<br>Monitoring System<br>(K162580) |
| Indication for<br>use | The Guardian Angel Rx<br>GA1001 Digital Vital<br>Sign Monitoring System<br>is indicated for use in<br>measuring and<br>displaying functional<br>oxygen saturation of<br>arterial hemoglobin<br>(SpO2) and pulse rate. It<br>is indicated for spot-<br>checking and/or<br>continuous monitoring of<br>pediatrics and infants<br>during non-motion and<br>under well-perfused<br>conditions. The intended<br>environments of use are<br>hospitals, medical<br>facilities, home care,<br>and subacute<br>environments. This<br>system is a reusable<br>device. | The Nonin Avant 9600<br>Digital Pulse Oximeter is a<br>portable, tabletop device<br>indicated for use in<br>simultaneously measuring,<br>displaying, and recording<br>functional oxygen<br>saturation of arterial<br>hemoglobin (SpO2) and<br>pulse rate of adult,<br>pediatric, infant, and<br>neonatal patients in<br>hospitals, medical facilities,<br>home care, and subacute<br>environments. It may also<br>be used in patient<br>transport, sleep<br>laboratories, and EMS<br>environments. The Avant<br>9600 is intended for<br>continuous monitoring<br>and/or spot-checking of<br>patients during both no<br>motion and motion<br>conditions, for patients who<br>are well or poorly perfused. | The Guardian Angel<br>GA1000 Digital Vital Sign<br>Monitoring System is<br>indicated for use in<br>measuring and displaying<br>functional oxygen<br>saturation of arterial<br>hemoglobin (SpO2) and<br>pulse rate of adult and<br>pediatric patients. It is<br>indicated for spot-<br>checking and / or<br>continuous monitoring of<br>patients during non-<br>motion and under well-<br>perfused conditions. The<br>intended environment of<br>use is hospital. This<br>system is a reusable<br>device. |
| Patient<br>population | Pediatrics and infants | Adult and pediatric, infant,<br>and neonatal patients | Adults and pediatrics |
| Application site | Foot | Finger, toe or foot | Finger |
| Environment of<br>use | Hospitals, medical<br>facilities, home care,<br>and subacute<br>environments | Hospitals, medical facilities,<br>home care, transport and<br>subacute environments | Hospitals |
| Out-of-hospital<br>transport | No | Yes | No |
| Motion | Non-motion | Non-motion<br>Motion | Non-motion |
| Perfusion | Well-perfused | Well-perfused<br>Poorly-perfused | Well-perfused |
| Single-use or<br>reusable | Reusable | Reusable | Reusable |
| Measurement | Pulse rate and SpO2 | Pulse rate and SpO2 | Pulse rate and SpO2 |
## Table 5.1 – Comparison with Predicate
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| Item | Subject Device | Predicate Device | Reference Device | | | |
|---------------------------------------------------------------------|-----------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------|----------------------------|---------------|-------------------------|
| Guardian Angel Rx<br>GA1001 Digital Vital<br>Sign Monitoring System | Avant 9600 Digital Pulse<br>Oximeter (K040589) with<br>Reusable Flex Sensors | Guardian Angel GA1000<br>Digital Vital Sign<br>Monitoring System<br>(K162580) | | | | |
| Technology of<br>pulse oximetry | Red and Infrared<br>technology | Red and Infrared<br>technology | Red and Infrared<br>technology | | | |
| LED<br>wavelengths &<br>output power of<br>pulse oximetry | Red: 660 nm @ 9.8 mw<br>Infrared: 880 nm @ 6.5<br>mw | Red: 660 nm @ 0.8 mw<br>max. avg.<br>Infrared: 910 nm @ 1.2 mw<br>max. avg | Red: 660 nm @ 1.8 mw<br>Infrared: 905 nm @ 2 mw | | | |
| Accuracy<br>(No motion) | SpO2<br> | ± 3 digits<br>(70-100%) | SpO2 | ± 3 digits<br>(70-100%) | SpO2 | ± 3 digits<br>(70-100%) |
| | Pulse<br>Rate | ± 3 digits<br>(30-300 bpm) | Pulse<br>Rate | ± 3 digits<br>(18-300 bpm) | Pulse<br>Rate | ± 3%<br>(30-290 bpm) |
| Displayed range | SpO2 | 1-100% | SpO2 | 0-100% | SpO2 | 1-100% |
| | Pulse<br>Rate | 30-300 bpm | Pulse<br>Rate | 18-300 bpm | Pulse<br>Rate | 30-290 bpm |
| Display | 10.1" LCD | LED | 7" LCD | | | |
| Alarms | Visual and auditory<br>alarms | Visual and auditory alarms | Visual and auditory<br>alarms | | | |
| Power Supply | Sensor Module: Lithium<br>battery<br>Display Unit: Lithium<br>battery, AC adaptor | Monitor: NiMH battery, AC<br>adaptor | Sensor Module: Lithium<br>battery<br>Display Unit: Lithium<br>battery, AC adaptor | | | |
| Wireless<br>technology/Data<br>transmission | Bluetooth | None | Bluetooth | | | |
| Biocompatibility | Skin (surface) contact<br>Prolonged contact | Skin (surface) contact<br>Prolonged contact | Skin (surface) contact<br>Prolonged contact | | | |
#### Summary of Performance Testing 5.8.
The following performance data were provided in support of the substantial equivalence determination.
### Biocompatibility testing
The biocompatibility evaluation for the subject device was conducted in accordance with ISO 10993-1 "Biological Evaluation of Medical Devices – Part 1: Evaluation and Testing Within a Risk Management Process," as recognized by FDA. The battery of testing included the following tests:
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- Cytotoxicity
- Sensitization
- Irritation
### Electrical safety and electromagnetic compatibility (EMC)
Electrical safety and EMC testing were conducted on the subject device. The device complies with the IEC 60601-1, IEC 60601-1-11, IEC 60601-1-8 and ISO 80601-2-61 standards for safety and the IEC 60601-1-2 standard for EMC.
### Software Verification and Validation Testing
Software verification and validation testing were conducted and documentation was provided as recommended by FDA's Guidance for Industry and FDA Staff. Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices."
### Clinical Study
Clinical data were collected, according to Clause 201.12.1.101.2 and Annex EE.2 of ISO 80601-2-61:2011 Standard, to verify the accuracy of the subject device on healthy subjects over the range of 70%-100% SpO2 through controlled induced hypoxia. Over 200 data points were collected. The Arms is below 3%, compliant with FDA quidance on Pulse Oximeters - Premarket notification submissions [510(k)].
#### 5.9. Substantially Equivalent Conclusion
Based on the non-clinical testing and clinical data summarized in this 510(k) submission, the results demonstrate that the subject device is substantially equivalent to the predicate. The differences do not raise different questions of safety or effectiveness when compared to the predicate.
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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.