YUWELL® Finger Pulse Oximeter (YX105, YX106, YX110, YX310)

K252805 · Jiangsu Yuyue Medical Equipment & Supply Co., Ltd. · DQA · Feb 17, 2026 · Cardiovascular

Device Facts

• Record ID: K252805
• Device Name: YUWELL® Finger Pulse Oximeter (YX105, YX106, YX110, YX310)
• Applicant: Jiangsu Yuyue Medical Equipment & Supply Co., Ltd.
• Product Code: DQA · Cardiovascular
• Decision Date: Feb 17, 2026
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 870.2700
• Device Class: Class 2
• Attributes: Pediatric

Intended Use

YUWELL® Finger Pulse Oximeters are non-invasive, non-sterile, reusable, and spot-checking devices that measure and display SpO2 and pulse rate (PR) via the patient’s finger. They are indicated for use in adults and children (weight > 30 kg) and are intended for professional and home settings. These devices are unsuitable for continuous monitoring, use during motion, or in patients with low perfusion.

Device Story

Finger-worn pulse oximeter; measures functional arterial hemoglobin oxygen saturation (SpO2) and pulse rate (PR). Uses LEDs and photodetector to detect light absorption changes from blood pulsation in vascular bed. Displays data on LED/OLED screen; provides visual pulse indicator. Models YX110 and YX310 include Bluetooth for wireless data transfer to mobile devices; YX105 and YX106 are standalone. Powered by two AAA batteries. Used in professional and home settings for spot-checking. Healthcare providers or patients view output to assess oxygenation status. Benefits include non-invasive, portable monitoring of vital signs.

Clinical Evidence

Clinical study conducted per ISO 80601-2-61 on 12 healthy adult volunteers (8 male, 4 female) with varying skin pigmentations. 268 data points sampled against a laboratory CO-oximeter. Results demonstrated an Arms value within ±2% SpO2 over the 70%-100% range.

Technological Characteristics

Materials: ABS enclosure, PC screen film, medical silicone gel fingertip cushion. Sensing: LED/photodetector-based optical plethysmography. Energy: 2x AAA alkaline batteries. Connectivity: Bluetooth (YX110, YX310). Standards: ISO 80601-2-61, IEC 60601-1, IEC 60601-1-2, IEC 60601-1-11. Software: Basic documentation level, non-life-supporting.

Indications for Use

Indicated for adults and children (weight > 30 kg) for non-invasive, spot-check measurement of SpO2 and pulse rate in professional and home settings. Not for continuous monitoring, use during motion, or patients with low perfusion.

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

• YUWELL® Finger Pulse Oximeter (K212385)

Reference Devices

• Pulse Oximeter (K232975)

Submission Summary (Full Text)

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FDA U.S. FOOD & DRUG ADMINISTRATION

February 17, 2026

Jiangsu Yuyue Medical Equipment & Supply Co., LTD.
Fang (Fawn) Zhang
No.1 Baisheng Road Development Zone
Danyang, Jiangsu 212300
China

Re: K252805
Trade/Device Name: YUWELL® Finger Pulse Oximeter (YX105, YX106, YX110, YX310)
Regulation Number: 21 CFR 870.2700
Regulation Name: Oximeter
Regulatory Class: Class II
Product Code: DQA
Dated: January 9, 2026
Received: January 9, 2026

Dear Fang (Fawn) Zhang:

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 (the 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 available 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.

Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device"

U.S. Food & Drug Administration
10903 New Hampshire Avenue
Silver Spring, MD 20993
www.fda.gov

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K252805 - Fang (Fawn) Zhang
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(https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).

Your device is also subject to, among other requirements, the Quality Management System Regulation (QMSR) (21 CFR Part 820), which includes, but is not limited to, ISO 13485 clause 7.3 (Design controls), ISO 13484 clause 8.3 (Nonconforming product), and ISO 13485 clause 8.5 (Corrective and preventative action). Please note that regardless of whether a change requires premarket review, the QMSR requires device manufacturers to review and approve changes to device design and production (ISO 13485 clause 7.3 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).

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 device-related adverse events) (21 CFR Part 803) for devices or postmarketing safety reporting (21 CFR Part 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reporting-combination-products); good manufacturing practice requirements as set forth in the Quality Management System Regulation (QMSR) (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.

All medical devices, including Class I and unclassified devices and combination product device constituent parts are required to be in compliance with the final Unique Device Identification System rule ("UDI Rule"). The UDI Rule requires, among other things, that a device bear a unique device identifier (UDI) on its label and package (21 CFR 801.20(a)) unless an exception or alternative applies (21 CFR 801.20(b)) and that the dates on the device label be formatted in accordance with 21 CFR 801.18. The UDI Rule (21 CFR 830.300(a) and 830.320(b)) also requires that certain information be submitted to the Global Unique Device Identification Database (GUDID) (21 CFR Part 830 Subpart E). For additional information on these requirements, please see the UDI System webpage at https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance/unique-device-identification-system-udi-system.

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 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-devices/medical-device-safety/medical-device-reporting-mdr-how-report-medical-device-problems.

For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medical-devices/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.

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K252805 - Fang (Fawn) Zhang
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See the DICE website (https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email ([e-mail]) or phone [phone] or 301-796-7100).

Sincerely,

Bradley Q. Quinn - S

Bradley Quinn
Assistant Director
DHT1C: Division of Anesthesia, Respiratory, and Sleep 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 | | |
| --- | --- | --- |
| Please type in the marketing application/submission number, if it is known. This textbox will be left blank for original applications/submissions. | K252805 | ? |
| Please provide the device trade name(s). | | ? |
| YUWELL® Finger Pulse Oximeter (YX105, YX106, YX110, YX310) | | |
| Please provide your Indications for Use below. | | ? |
| YUWELL® Finger Pulse Oximeters are non-invasive, non-sterile, reusable, and spot-checking devices that measure and display SpO_{2} and pulse rate (PR) via the patient’s finger. They are indicated for use in adults and children (weight > 30 kg) and are intended for professional and home settings. These devices are unsuitable for continuous monitoring, use during motion, or in patients with low perfusion. | | |
| Please select the types of uses (select one or both, as applicable). | ☑ Prescription Use (Part 21 CFR 801 Subpart D)
☐ Over-The-Counter Use (21 CFR 801 Subpart C) | ? |

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Traditional 510(k) Summary

This 510(k) summary is being submitted in accordance with the requirements of 21 CFR Part 807.92

Date 510k summary prepared: 10 DEC 2025

1. SUBMITTER

510(k) Submitter: Jiangsu Yuyue Medical Equipment & Supply Co., LTD.
Address: No.1 Baisheng Road Development Zone Danyang Jiangsu 212300 China
Company Contact Person: Dr. Fang (Fawn) Zhang
Phone: [phone]
Email: [e-mail]

2. DEVICE

Device Common Name: Finger Pulse Oximeter
Device trade or proprietary name: YUWELL® Finger Pulse Oximeter
Model: YX105, YX106, YX110, YX310
Classification Name: Oximeter
Classification Regulation: 21 CFR §870.2700
Device Classification: Class II
Device Product Code: DQA

3. PREDICATE DEVICE

Device Trade Name: YUWELL® Finger Pulse Oximeter
510(k): K212385
Product Code: DQA

4. REFERENCE DEVICE

Device Trade Name: Pulse Oximeter
510(k): K232975
Product Code: DQA

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# 5. DEVICE DESCRIPTION

YUWELL® Finger Pulse Oximeter (the Oximeter) is a finger pulse oximeter designed to measure functional oxygen saturation (SpO₂) of arterial hemoglobin and pulse rate (PR) in adults and children (weight > 30 kg). The device operates by detecting changes in light absorption caused by blood pulsation in the vascular bed, which are used to determine SpO₂ and PR. It contains light-emitting diodes (LEDs) and a photodetector, with the photodetector positioned on the opposite side of the probe from the LEDs. SpO₂ and PR are displayed on the device’s LED/OLED screen, providing a visual pulse indicator that blinks in sync with the detected PR.

The Oximeter is powered by two AAA alkaline batteries and does not feature alarms. The YX310 and YX110 models can transfer data to a mobile device wirelessly whereas the YX105 and YX106 models do not transfer data.

# 6. INTENDED USE/PROPOSED INDICATIONS FOR USE

YUWELL® Finger Pulse Oximeters are non-invasive, non-sterile, reusable, and spot-checking devices that measure and display SpO₂ and pulse rate (PR) via the patient’s finger. They are indicated for use in adults and children (weight > 30 kg) and are intended for professional and home settings. These devices are unsuitable for continuous monitoring, use during motion, or in patients with low perfusion.

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7. COMPARISON OF TECHNOLOGICAL CHARACTERISTICS WITH THE PREDICATE DEVICE

| Description | Subject Device | Predicate Device (K212385) | Reference Device (K232975) | Comparison |
| --- | --- | --- | --- | --- |
| Manufacturer | JIANGSU YUYUE MEDICAL EQUIPMENT & SUPPLY CO., LTD. | JIANGSU YUYUE MEDICAL EQUIPMENT & SUPPLY CO., LTD. | Beijing Choice Electronic Technology Co., Ltd. | / |
| Product Name | Finger Pulse Oximeter | Finger Pulse Oximeter | Pulse Oximeter | / |
| Models | YX105, YX106, YX110, YX310 | YX102, YX306 | MD300C228 | / |
| Classification Regulation | 21 CFR 870.2700, Class II | 21 CFR 870.2700, Class II | 21 CFR 870.2700, Class II | Same |
| Product Code | DQA | DQA | DQA | Same |
| Intended Use/Proposed Indications for Use | YUWELL® Finger Pulse Oximeters are non-invasive, non-sterile, reusable, and spot-checking devices that measure and display SpO2 and pulse rate (PR) via the patient's finger. They are indicated for use in adults and children (weight > 30 kg) and are intended for professional and home settings. These devices are unsuitable for continuous monitoring, use during motion, or in patients with low perfusion. | YUWELL® Finger Pulse Oximeters are non-invasive, non-sterile, reusable, and spot-checking devices that measure and display SpO2 and pulse rate (PR) via the patient's finger. They are indicated for use in adults and children (weight > 30 kg) and are intended for professional and home settings. These devices are unsuitable for continuous monitoring, use during motion, or in patients with low perfusion. | The Pulse Oximeter is a handheld non-invasive device intended for spot-checking of oxygen saturation of arterial hemoglobin (SpO2) and Pulse Rate of adult, adolescent child and infant patients in hospitals, hospital-type facilities and homecare. The device can be used by the people whose finger thickness is between 8mm. and 22mm (0.3 inches to 0.9 inches). | Same as the predicate device. |
| Intended patient population | Adults and children (weight >30 kg) | Adults and children (weight >30 kg) | Adult, adolescent, child and infant patients | Same as the predicate device. |

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| Intended application site | Finger | Finger | Finger | Same |
| --- | --- | --- | --- | --- |
| **Performance Specifications** | | | | |
| SpO_{2} Display Range | 0%~100% | 0%~100% | 0%~100% | Same |
| SpO_{2} Measurement Range | 70%~100% | 70%~100% | 70%~100% | Same |
| SpO_{2} Accuracy | 70%~80%,80%~90%,
90%~100%, ± 2%;
<70%, no definition | 70%~80%,80%~90%,
90%~100%, ± 2%;
<70%, no definition | 70%~100%, ± 2%;
0~69% no definition | Same as the predicate device. |
| SpO_{2} Resolution | 1% | 1% | 1% | Same |
| PR Display Range | 25bpm~250bpm | 25bpm~250bpm | 30 bpm~250 bpm | Same as the predicate device. |
| PR Measurement Range | 25bpm~250bpm | 25bpm~250bpm | 30 bpm~250 bpm | Same as the predicate device. |
| PR Accuracy | ±1% or ±1 bpm (whichever is greater) | ±1% or ±1 bpm(larger) | 30 bpm~99 bpm, ± 2 bpm;
100 bpm~250 bpm, ± 2% | Same as the predicate device. |
| PR Resolution | 1bpm | 1bpm | 1 bpm | Same as the predicate device. |
| **Safety Specifications** | | | | |
| Performance | ISO 80601-2-61 | ISO 80601-2-61 | ISO 80601-2-61 | Same |
| Electrical Safety | IEC 60601-1
IEC 60601-1-11 | IEC 60601-1
IEC 60601-1-11 | IEC 60601-1
IEC 60601-1-11 | Same |
| EMC | IEC 60601-1-2 | IEC 60601-1-2 | IEC 60601-1-2 | Same |
| Operation environment | Ambient temperature: 41°F~104°F (5°C~40°C);
Relative humidity: 15%~90%,
no condensation;
Atmospheric pressure: 700hPa~1060hPa. | Ambient temperature: 41°F~104°F (5°C~40°C);
Relative humidity: ≤80%;
Atmospheric pressure: 860hPa~1060hPa. | Ambient temperature: 32°F~104°F (0°C~40°C);
Relative humidity: 15%~93% no condensation;
Atmospheric pressure: 70kPa~106kpa. | Different.
The operating environment of the subject device is recommended by IEC 60601-1-11, with a larger range of relative humidity and atmospheric pressure than that of the predicate. Safety testing was performed by the same device. |

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| | | | | conducted to demonstrate the safety and effectiveness of the subject device under the claimed conditions. Thus, the difference will not affect substantial equivalence between the subject and the predicate devices. |
| --- | --- | --- | --- | --- |
| Storage & Transport environment | Ambient temperature: -13°F~+158°F (-25°C~+70°C); Relative humidity: ≤93%, no condensation; Atmospheric pressure: 500hPa~1060hPa. | Ambient temperature: -4°F~+131°F (-20°C~+55°C); Relative humidity: ≤93%, no condensation; Atmospheric pressure: 500hPa~1060hPa. | Ambient temperature: -13°F~+158°F (-25°C~+70°C); Relative humidity: ≤93%, no condensation; Atmospheric pressure: 70kPa~106kpa. | Different. The storage & transport environment of the subject device is recommended by IEC 60601-1-11, and testing has been performed accordingly. Test results showed that the subject device is safe and effective under the claimed environment. Therefore, the difference in storage and transport environment between the subject and the predicate devices will not affect their substantial equivalence. |
| Contacting material | Enclosure: ABS Screen protect film: PC Fingertip Cushion: Medical Silicone Gel YX110 Button: None YX105, YX106 Button: Medical Silicone Gel YX310 Button: ABS | Enclosure: ABS Screen protect film: PC Fingertip Cushion: Medical Silicone Gel YX102 Button: None YX306 Button: ABS | Enclosure, Battery Cover and Button: ABS Screen protect film: PMMA Fingertip Cushion: Silica gel | Same as the predicate device. |
| Features | | | | |
| Measuring characteristics | Spot-checking Not suitable for continuous monitoring, use during motion, or in patients with low perfusion. | Spot-checking Not for continuous monitoring, use during motion or for patients with low perfusion. | Spot-checking | Same as the predicate device. |

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| Measurement wavelength-Red light | 660±8nm | 660±8nm | 660±3nm | Same as the predicate device. |
| --- | --- | --- | --- | --- |
| Measurement wavelength-Infrared light | 905 ± 25nm | 905 ± 25nm | 905±10nm | Same as the predicate device. |
| Display Type | YX105, YX106, YX110: LED
YX310: OLED | YX102: LED
YX306: OLED | LCD | Same as the predicate device. |
| Power Supply | Two (2) AAA alkaline batteries | Two (2) AAA alkaline batteries | Two (2) AAA alkaline batteries | Same |
| Display Content | YX105, YX106, YX110: SpO2, PR, Pulse bar, Low battery
YX310: SpO2, PR, Pulse volume wave, Pulse bar, Battery level, and Symbol of gravity sensing mode | YX102: SpO2, PR, Pulse bar, Low battery
YX306: SpO2, PR, Pulse volume wave, Pulse bar, Battery level, and Symbol of gravity sensing mode | SpO2, PR, PI | Same as the predicate device. |
| User Interface | YX105, YX106, YX110: 1 display direction
YX310: 4 display directions | YX102: 1 display direction
YX306: 4 display directions | 7 display modes | Same as the predicate device. |
| Bluetooth | YX105, YX106: No Bluetooth function
YX110, YX310: with Bluetooth function | No Bluetooth function | With Bluetooth function | Two models (YX110 and YX310) of the subject device differ from the predicate device but they are the same with the reference device in this regard.
The subject device has been verified for safety and effectiveness per IEC 60601-1, IEC 60601-1-2, IEC 60601-1-11 and ISO 80601-2-61. Therefore, the difference will not affect the safety and effectiveness of the subject device. |

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# 8. SUMMARY OF NON-CLINICAL TESTS

## Electromagnetic Compatibility (EMC) and Electrical Safety Testing

The subject device has been tested in compliance with the following standards:

1) IEC 60601-1:2015+A1:2012+A2:2020/ ANSI AAMI ES60601-1:2005/(R)2012 and A1:2012 and A2:2021 Medical electrical equipment - Part 1: General requirements for basic safety and essential performance
2) IEC 60601-1-2:2014 Medical electrical equipment - Part 1-2: General requirements for basic safety and essential performance - Collateral Standard: Electromagnetic disturbances - Requirements and tests
3) IEC 60601-1-11:2015/AMD1:2020 Medical electrical equipment - Part 1-11: General requirements for basic safety and essential performance - Collateral Standard: Requirements for medical electrical equipment and medical electrical systems used in the home healthcare environment

## Biocompatibility Testing

Biocompatibility testing in accordance with ISO 10993-1:2018 is included as part of this submission to support the acceptability of the biocompatibility risks. In addition, FDA Guidance “Use of International Standard ISO 10993-1” issued in 2023 is followed. The biocompatibility testing included the following tests:

- Cytotoxicity
- Irritation
- Sensitization

## Performance Testing-Bench

Performance bench testing for the YUWELL® Finger Pulse Oximeter is included in this submission to support performance and functionality.

## Software Verification and Validation Testing

Software verification and validation were provided in compliance with FDA Guidance for “The Content of the Premarket Submission for Software Contained in Medical Devices.”

The software was found to fit in the category of products that would require Basic Documentation Level because the failure or latent flaw of the device software function would not present a hazardous situation with a probable risk of death or serious injury to either a patient, user of the device or others in the

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environment of use prior to the implementation of the risk controls. The software does not provide any data that is considered life-supporting.

## Wireless Testing

The YUWELL® Finger Pulse Oximeter YX110 and YX310 are provided with Bluetooth connectivity to support the wireless communication of the measurement data. While this feature is not in the predicate device, it is in the reference device. The corresponding software and cybersecurity testing was conducted on the subject device. Specifically, wireless testing was conducted in accordance with the FDA Guidance, “Radio-Frequency Wireless Technology in Medical Devices” to support the Bluetooth feature provided as part of the device.

## Cybersecurity

The YUWELL® Finger Pulse Oximeter YX110 and YX310 are provided with Bluetooth connectivity to support the wireless communication of the measurement data. While this feature is not in the predicate device, it is in the reference device. The corresponding software and cybersecurity testing was conducted on the subject device. Specifically, cybersecurity documentation was provided as part of this submission in accordance with the FDA Guidance, “Cybersecurity in Medical Devices: Quality System Considerations and Content of Premarket Submissions”.

## Reprocessing

Validation of cleaning and disinfection instructions was performed in accordance with FDA guidance “Reprocessing Medical Devices in Health Care Settings: Validation Methods and Labeling.”

## 9. PERFORMANCE DATA: CLINICAL TESTING

Clinical studies were conducted to verify the accuracy of proposed device. The clinical studies were conducted per the following standards:

1) ISO 80601-2-61: 2017 Medical Electrical Equipment - Part 2-61: Particular Requirements for Basic Safety and Essential Performance of Pulse Oximeter Equipment
2) FDA Guidance “Pulse Oximeters-Premarket Notification Submissions: Guidance for Industry and Food and Drug Administration Staff”

The clinical test of the Finger Pulse Oximeters was conducted against a laboratory CO-oximeter within the range of 70% to 100%. There was a total of 12 healthy adult volunteers (8 males and 4 females) with skin

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pigmentations ranging from light to dark. The subjects included 5 with light skin, 4 with medium skin, and 3 with dark skin. For each device, 268 data points were sampled for analysis. The clinical validation results demonstrated that the root mean square error $(\mathrm{A}_{\mathrm{rms}}$ value) of the finger pulse oximeter was within $\pm 2\%$ $\mathrm{SpO}_2$ over the claimed range of $70\% -100\%$ .

The subject device has the same intended use and similar performance, equivalence testing standards, and all testing results have come back as positive results or pass for the subject device, which the subject device is as safety and effectiveness as the predicate device.

# 10. CONCLUSIONS

The subject device has the same intended use, and similar technological characteristics as that of the predicate device. While there are differences between them, those differences do not raise safety or effectiveness concern as any of those differences has already been evaluated through design verification and validation. Furthermore, the difference in Bluetooth function is addressed by the reference device. Therefore, the subject device is substantially equivalent to products that have already received market clearance.