Oxi-W system is intended for use: To spot check or monitor Oxygen saturation of arterial hemoglobin (SpO2%) and pulse rate. To analyze the pulse waveform (Photoplethysmography or PTG) provided by the oximeter. It only provides mathematical analysis of the input of the PTG using the first and second derivatives of the PTG values related to the microvascular condition. To analyze the basic rhythms of the NN or RR intert rate from the PTG, both in the time domain and in the frequency domain (short time 5 minutes). It only provides mathematical analysis of the heart rate to the autonomic nervous system function. The system only provides mathematical analysis of input PTG values. It is practitioner to make proper judgement based on these values. The software provides a visual alarm for the heart rate and/or SpO2 percent out of the normal range and for the bad quality signal transmission. The data are stored in PC in the Backup system of the device is intended use only for adult subjects (> 20 years old) This Oximeter is intended to be used in spot-checking (5 minutes). The device is intended for use in licensed practitioner's office This device is no intended to be used at home, in hospital or out-of-hospital transport The device is not intended for use in support life and not for continuously monitoring The system will be used by practitioner.
Device Story
Oxi-W system consists of a pulse oximeter hardware and PC-based software; collects SpO2%, pulse rate, and photoplethysmography (PTG) signals via Bluetooth; transmits encrypted data to PC software. Software performs mathematical analysis of PTG using first and second derivatives to assess microvascular condition; analyzes NN/RR intervals in time and frequency domains for heart rate variability (HRV) related to autonomic nervous system function. Used by practitioners in office settings for 5-minute spot checks. Provides visual alarms for out-of-range SpO2/heart rate or poor signal quality. Output assists practitioners in clinical judgment; not intended for diagnosis or life support.
Clinical Evidence
Bench testing only. No clinical data provided. Testing included IEC 60601-1 (safety), IEC 60601-1-2 (EMC), ISO 80601-2-61 (pulse oximeter performance), CRC coding for data integrity, calibration tests using simulators, and software verification/validation. Bluetooth and cybersecurity risks were evaluated per FDA guidance.
Technological Characteristics
Programmable electro-medical system (PEMS). Hardware: Pulse oximeter with Bluetooth connectivity, 3V AAA battery power. Patient-contact material: Thermoplastic polyurethane (TPU), latex-free. Sensing: Red (663nm) and IR (890nm) light absorption. Software: PC-based, performs mathematical analysis of PTG (first/second derivatives) and HRV. Connectivity: Bluetooth to PC. Sterilization: Not specified.
Indications for Use
Indicated for adult subjects (> 20 years old) for spot-checking (5 minutes) of SpO2, pulse rate, and mathematical analysis of pulse waveform and heart rate variability in licensed practitioner offices. Not for home, hospital, transport, life support, or continuous monitoring.
Regulatory Classification
Identification
A cardiac monitor (including cardiotachometer and rate alarm) is a device used to measure the heart rate from an analog signal produced by an electrocardiograph, vectorcardiograph, or blood pressure monitor. This device may sound an alarm when the heart rate falls outside preset upper and lower limits.
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Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food & Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which is a blue square with the letters "FDA" in white. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.
LD Technology LLC Albert MAAREK Quality Manager 100 N. Biscayne Blvd Suite 502 Miami, Florida 33132
## Re: K200141
Trade/Device Name: Oxi-W System Regulation Number: 21 CFR 870.2300 Regulation Name: Cardiac Monitor (Including Cardiotachometer And Rate Alarm) Regulatory Class: Class II Product Code: MWI, DQA Dated: March 31, 2020 Received: April 1, 2020
Dear Albert MAAREK:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR 803) for
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devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely.
Todd Courtney Assistant Director DHT1C: Division of ENT, Sleep Disordered Breathing, Respiratory and Anesthesia Devices OHT1: Office of Ophthalmic, Anesthesia, Respiratory, ENT and Dental Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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# Indications for Use
#### 510(k) Number
Device Name
Oxi-W system
Indications for Use (Describe)
Oxi-W system is intended for use:
To spot check or monitor Oxygen saturation of arterial hemoglobin (SpO2%) and pulse rate.
To analyze the pulse waveform (Photoplethysmography or PTG) provided by the oximeter. It only provides mathematical analysis of the input of the PTG using the first and second derivatives of the PTG values related to the microvascular condition.
To analyze the basic rhythms of the NN or RR intert rate from the PTG, both in the time domain and in the frequency domain (short time 5 minutes). It only provides mathematical analysis of the heart rate to the autonomic nervous system function.
The system only provides mathematical analysis of input PTG values. It is practitioner to make proper judgement based on these values. The software provides a visual alarm for the heart rate and/or SpO2 percent out of the normal range and for the bad quality signal transmission.
The data are stored in PC in the Backup system of the device is intended use only for adult subjects (> 20 years old) This Oximeter is intended to be used in spot-checking (5 minutes).
The device is intended for use in licensed practitioner's office
This device is no intended to be used at home, in hospital or out-of-hospital transport
The device is not intended for use in support life and not for continuously monitoring
The system will be used by practitioner.
Type of Use (Select one or both, as applicable)
ال Prescription Use (Part 21 CFR 801 Subpart D)
_ Over-The-Counter Use (21 CFR 801 Subpart C)
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Image /page/3/Picture/2 description: The image shows the logo for LD Technology. The logo consists of a green plant inside of a circle on the left, and the words "LD Technology" in a light green color on the right. The text is in a serif font and is slightly italicized.
510(k) Premarket Notification Number: date: April,17,2019
## 510(k) Summary K200141
## Oxi-W system
## This summary of 510(k) safety and effectiveness information is submitted in accordance with the requirements of 21 CFR §807.92
# 1. Submitter's Identification:
| Manufacturer | : L.D TECHNOLOGY |
|--------------|----------------------------------------------------------|
| Address | : 100 N. Biscayne Blvd, Suite 502 Miami, FL, 33132, USA |
| Tel | : 305-379-9900 |
| Email | : albert.ldteck@gmail.com |
#### 2. Device Name / Classification
| Trade name | : Oxi_W system |
|----------------------|-------------------|
| Device Common Name | : Cardiac Monitor |
| Regulation Number | : 21 CFR 870.2300 |
| Product Codes | : MWI, DQA |
| Classification | : Class II |
| Classification Panel | : Anesthesiology |
### 3. Predicate legally marketed devices
| Primary Predicate Device | : LD-Oxi system cleared under K160956 |
|--------------------------|----------------------------------------------------|
| Applicant | : LD Technology LLC . |
| Product code s | : MWI and DQA |
| Reference Device | :PC-60 NW Fingertip Oximeter cleared under K120502 |
| Applicant | : Shenzhen creative industry Co .Ltd |
| Product code | : DQA |
#### 4. Device Description
The Oxi-W System is a programmable electro medical system (PEMS) including:
- Pulse oximeter with data transmission via Bluetooth. -
- -Software installed on a computer
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## Description of the features
Hardware :
- collects SpO2%, pulse rate value and vertical bar graph pulse amplitude -
(photoplethysmography) and sends the encrypted numbers to the Software.
Software:
- Display SP02%, and photoplethysmography. -
- Mathematical analysis of the pulse waveform (Photoplethysmography) using the first and second derivative of the wave to provide values related to the microvascular condition.
- Mathematical analysis of the pulse waveform (Photoplethysmography) to detect the heart rate and provides values of the heart rate variability related to the autonomic nervous system function.
## Software specifications
The system carries out the following operations:
Image /page/4/Figure/12 description: The image shows a block diagram of a system. The diagram includes blocks labeled "BACK UP", "Derivatives", "Photoelectrical plethysmography analysis", "Heart rate", "SpO2 %", "Pulse wave", "Heart rate variability analysis", "PROTOCOL COMMUNICATION", and "HARDWARE". Arrows connect the blocks, indicating the flow of information or processes within the system.
# 5. Intended use and indications for use
Oxi-W system is intended for use:
To spot check or monitor Oxygen saturation of arterial hemoglobin (SpO2%) and pulse rate. To analyze the pulse waveform (Photoplethysmography or PTG) provided by the oximeter. It only provides mathematical analysis of the input of the PTG using the first and second derivatives of the PTG values related to the microvascular condition.
To analyze the basic rhythms of the NN or RR intervals in heart rate from the PTG, both in the time domain and in the frequency domain (short time 5 minutes). It only provides mathematical analysis of the heart rate variability values related to the autonomic nervous system function. The system only provides mathematical analysis of input PTG values. It is practitioner to make proper judgement based on these values.
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The software provides a visual alarm for the values of the heart rate and/or SpO2 percent out of the normal range and for the bad quality signal transmission.
The data are stored in PC in the Backup system of the Oxi-W software.
The device is intended for use only for adult subjects (> 20 years old)
This Oximeter is intended to be used in spot-checking (5 minutes).
The device is intended for use in licensed practitioner's office
This device is no intended to be used at home, in hospital or out-of-hospital transport The device is not intended for use in support life and not for continuously monitoring The system will be used by practitioner.
## 6. Device specifications and comparison with predicate device.
| Specifications | LD-OXI system K k160956 | Oxi-W system | Comparison |
|----------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------|
| Intended use | To spot check or monitor Oxygen<br>saturation of arterial hemoglobin<br>(SpO2%) and pulse rate.<br>To analyze the pulse waveform<br>(Photoelectrical Plethysmography or<br>PP) provided by the oximeter. It only<br>provides mathematical analyses of<br>the input of the SpO2 measurement.<br><br>To analyze the basic rhythms of the<br>NN or RR intervals in heart rate, both<br>in the time domain and in the<br>frequency domain (short time 5<br>minutes). It only provides<br>mathematical analysis of the input of<br>the heart rate variability.<br><br>The mathematical analysis of<br>Photoelectrical Plethysmography and<br>HRV ARE NOT intended use for<br>diagnosis.<br>The software provides a visual alarm<br>for the values of the heart rate and/or<br>SpO2 percent out of the normal range<br>and for the bad quality signal<br>transmission.<br>The data are stored in PC in the<br>Backup system of the LD-Oxi<br>software. | To spot check or monitor Oxygen<br>saturation of arterial hemoglobin<br>(SpO2%) and pulse rate.<br>To analyze the pulse waveform<br>(Photoplethysmography or PPG)<br>provided by the oximeter. It only<br>provides mathematical analysis of the<br>input of the PTG using the first and<br>second derivatives of the PTG values<br>related to the microvascular<br>condition.<br>To analyze the basic rhythms of the<br>NN or RR intervals in heart rate from<br>the PTG, both in the time domain and<br>in the frequency domain (short time 5<br>minutes). It only provides<br>mathematical analysis of the heart<br>rate variability values related to the<br>autonomic nervous system function.<br>The system only provides<br>mathematical analysis of the input<br>PTG values. It is the practitioner's<br>responsibility to make proper<br>judgement based on these values.<br>The software provides a visual alarm<br>for the values of the heart rate and/or<br>SpO2 percent out of the normal range<br>and for the bad quality signal<br>transmission. The data are stored in<br>PC in the Backup system of the Oxi-W<br>software. | Difference (1) |
### 6.1 Intended use and indication for use comparison
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| Indication and<br>Prescription for<br>use | The device is intended for use only for<br>adult subjects (> 20 years old) This<br>Oximeter is intended to be used in<br>spot-checking (5 minutes) The<br>device is intended for use in licensed<br>practitioner's office<br>This device is no intended to be used<br>at home, in hospital or out-of-<br>hospital transport<br>The device is not intended for use in<br>support life and not for continuously<br>monitoring<br>The system will be use by practitioner. | The device is intended for use only for<br>adult subjects (> 20 years old)<br>This Oximeter is intended to be used<br>in spot-checking (5 minutes).<br>The device is intended for use in<br>licensed practitioner's office<br>This device is no intended to be used<br>at home, in hospital or out-of-hospital<br>transport<br>The device is not intended for use in<br>support life and not for continuously<br>monitoring<br>The system will be used by<br>practitioner. | Only grammatical corrections |
|-------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------|
|-------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------|
## 6.2 Software specification and comparison with predicate device
| Specifications | LD-OXI software K k160956 | Oxi-W software | Comparison |
|-----------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------|
| Software<br>measurements<br>and Results | SpO2%, Pulse rate,<br>Photoplethysmography, Heart rate<br>variability analysis at rest and using<br>Ewing tests, Photoplethysmography<br>Second derivative analysis. | SpO2%, Pulse rate,<br>Photoplethysmography, Heart rate<br>variability analysis at rest and using<br>Ewing tests, Photoplethysmography<br>Second derivative analysis | Same |
| Data transmitted<br>by the hardware | SpO2%, Pulse rate,<br>Photoplethysmography, | SpO2%, Pulse rate,<br>Photoplethysmography, | Same |
| Mode of data<br>reception | USB port of the PC | Hardware Bluetooth microcontroller<br>to PC | Difference (2). |
#### 6.3 Hardware specifications and comparison with reference predicate device.
| Specifications | LD-OXI hardware k160956 | PC-60NW k120502 | Comparison |
|-------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------|------------|
| Scientific<br>Background | Based on the red and infrared light<br>absorption characteristics of<br>oxygenated and deoxygenated<br>hemoglobin. | Based on the red and infrared light<br>absorption characteristics of<br>oxygenated and deoxygenated<br>hemoglobin. | Same |
| Material in<br>contact with the<br>patient | Reusable SPo2 probe Thermoplastic<br>polyurethane (TPU) material and latex<br>free | Reusable SPo2 probe Thermoplastic<br>polyurethane (TPU) material and latex<br>free | Same |
| Placement of the<br>probe | Index finger | Index finger | Same |
| Classification | Class II | Class II | Same |
| Degree of<br>protection<br>against electric<br>shocks | BF | BF | Same |
| Operating mode | Continuous use | Continuous use | Same |
{7}------------------------------------------------
| Features | To spot check or monitor Oxygen<br>saturation of arterial hemoglobin,<br>pulse rate and photoplethysmography<br>for 5 minutes and transmission of the<br>data to a software for mathematical<br>analysis. | To spot check or monitor Oxygen<br>saturation of arterial hemoglobin,<br>pulse rate and photoplethysmography<br>for 5 minutes and transmission of the<br>data to a software for mathematical<br>analysis. | Same |
|----------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------|
| Power supply | Lithium battery 3.7 V rechargeable by<br>USB port | 2 x LR03 (AAA) alkaline batteries 3V | Difference (3) |
| IR light<br>Wavelength | 880nm +/- 10 | 890 nm +/- 10 | Same , the small different does not<br>change the reading according to the<br>tolerance +/- 10 |
| RED light<br>Wavelength | 660nm +/- 10 | 663 nm +/- 10 | Same , the small different does not<br>change the reading according to the<br>tolerance +/- 10 |
| Pulse rate (PR)<br>Range | 30~235 bpm | 30~235 bpm | Same |
| PR Accuracy | +3 | +3 | Same |
| SpO2%<br>accuracy | 70%~100%:±2% , 0~69%, unspecified | 70%~100%:±2% , 0~69%, unspecified | Same |
| Data<br>transmission | USB | Bluetooth | Difference(4) |
| Standard met | 60601-1 3rd Ed<br>60601-1-2 3rd Ed<br>ISO 80601-2-61 | 60601-1 3rd Ed<br>60601-1-2 3rd Ed<br>ISO 80601-2-61 | Same |
| Module oximeter<br>Circuit board and<br>components | OEM (K090671)<br>USB microcontroller<br>Circuit board integrated to the probe | OEM (k120502)<br>Bluetooth microcontroller (Soc)<br>Circuit board integrated to the probe | Difference (5) for the<br>microcontroller. |
| Data<br>transmission<br>Speed | 19200 Bauds | 19200 Bauds | Same |
## 7. Substantial equivalence
### Predicate legally marketed device
LD-Oxi system K k160956 Applicant: LD Technology LLC. Product code MWI, DQA
### Similarities:
- Has the same intended and indication for use ( I.e. details analysis of the intended use > writing),
- > Same technological characteristics as the predicate device
- > Same safety and effectiveness
- > Has the same material in contact with the patient
- > Do not affect the Fundamental Scientific Technology
- > Do not change the prescription use
### Differences:
Difference (1) The new writing of the intended use is NOT a change or a new intended use, it is only to clarify the reading of the intended use and the utility of the device.
{8}------------------------------------------------
The sentence "To analyze the pulse waveform (Photoelectrical Plethysmography or PP) provided by the oximeter. It only provides mathematical analyses of the input of the SpO2 measurement".
Was replaced by :
To analyze the pulse waveform (Photoplethysmography or PPG) provided by the oximeter. It only provides mathematical analysis of the input of the PPG using the first and second derivatives of the PTG values related to the vascular microcirculation condition.
Reason of replacement:
- a) The word Photoplethysmography or PPG is used in peer reviews regarding the technology and therefore, it is commonly understood by the user.
- b) The sentence "mathematical analyses of the input of the SpO2 measurement" is not clear. In fact, the software performs a mathematical analysis of the pulse waveform (PPG) and not of the SPo2 measurement. The mathematical analysis provides the second derivative PPG and the software results come from the detected points ( a,b,c,d and e) of the second derivative PPG.
Therefore, the mathematical analysis will be better understood by the users.
- c) Adding "related to the microvascular condition" is NOT a new intended use, it only clarifies the utility of the performed mathematical analysis of the second derivative PPG.
The sentence "It only provides mathematical analysis of the input of the heart rate variability".
Was replaced by:
It only provides mathematical analysis of the heart rate variability values related to the autonomic nervous system function.
Reason of replacement:
- Adding "related to the autonomic nervous system function" is NOT a new intended use: it only clarifies the utility of the performed mathematical analysis of the heart rate variability
The sentence "The mathematical analysis of Photoelectrical Plethysmography and HRV ARE NOT intended use for diagnosis."
Was replaced by:
The system only provides values. It is the practitioner's responsibility to make proper judgements based on these values.
Reason of replacement:
The device provides values related to the autonomic nervous system function and microvascular condition. These values are not intended to provide diagnosis, but only allow the practitioner to judge how those values will be used in the practice.
Difference (2) Mode of Data reception ( Bluetooth vs USB)
Difference (3) Power supply 2 x LR03 (AAA) alkaline batteries 3V vs USB port
Difference (4) and (5) Data transmission Bluetooth versus USB using different microcontrollers.
{9}------------------------------------------------
# 8. Performances and Effectiveness General safety concerns.
## Clinical Test:
Since the Oxi W algorithms and hardware have the same intended use and results as the predicate device, the Oxi-W does not require clinical tests since the predicate device does not provide any clinical Test.
# Oxi_W testing:
1. Laboratory tests
IEC 60601-1:2005 + CORR.1 (2006) + CORR.2 (2007) + AM1 (2012), Medical -Electrical Equipment -- Part 1: General Requirements For Basic Safety And Essential Performance.
IEC 60601-1-2: 2007, Medical Electrical Equipment - Part 1-2: General Requirements For Basic Safety And Essential Performance - Collateral Standard: Electromagnetic Compatibility -Requirements And Tests.
ISO 80601-2-61:2011 - Medical electrical equipment - Part 2-61: Particular requirements for basic safety and essential performance of pulse oximeter equipment. 2. CRC (Cyclic redundancy check) Coding was performing to demonstrate the software performance to accurately capture, store, and analyze the data measured by the hardware 3. Calibration tests (simulator oximeter)
4. Software verification and validation(SRS/SDS/STD/STR)
5. Bluetooth testing and cybersecurity risk analysis according to the FDA Wireless Guidance (2014), Cybersecurity Guidance (2013) and Design of Bluetooth version 4.0 white paper and FDA released a Safety Communication on March 3,2020.
# Difference discussion:
Difference (1) is only to clarify the reading of the intended use and the utility of the device and does not affect the performances and effectiveness and General safety concerns of the proposed device.
Difference (2) requires Software New protocol communication.
The new protocol communication has been verified and validated by the software verification and validation(SRS/SDS/STD/STR) and CRC coding and therefore, does not affect the performances and effectiveness and General safety concerns of the proposed device
Difference (3) regarding the Power supply 2 x LR03 (AAA) alkaline batteries 3V vs USB port Will reduce the risk during the shipping and therefore, does not affect the performances and effectiveness and General safety concerns of the proposed device
Difference (4) and (5) Data transmission Bluetooth versus USB using different microcontrollers. may increase the risk of interference and cybersecurity. The risk of interference and cybersecurity has been tested and evaluated according to according to the FDA Wireless Guidance (2014), Cybersecurity Guidance (2013) and Design of Bluetooth version 4.0 white paper and FDA released a Safety Communication on March 3,2020 and the difference 4 and 5 do not affect the performances and effectiveness and General safety concerns of the proposed device
Therefore, the proposed device using a different cleared hardware than the predicate device does not affect its performance, safety, and effectiveness.
{10}------------------------------------------------
### Conclusions
In conclusion, the proposed device, Oxi-W system, has the same intended use, and similar technological characteristics compared to the predicate device. The difference in technological characteristics are addressed by performance testing, and do not raise different questions of safety and effectiveness.
Signature:
No text is visible in this image.
Albert MAAREK
Premarket notification [510K] Number: k200141
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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.