The MD300CA Fingertip Pulse Oximeter is a portable oximeter intended for spot-check use to non-invasively measure oxygen saturation of arterial hemoglobin (SpO2) and pulse rate of adult and pediatric patients at home and hospital settings (including clinical use by internists, during surgery, anesthesia, intensive care, etc.). Not for continuous monitoring.
Device Story
Fingertip pulse oximeter for spot-check SpO2 and pulse rate measurement; utilizes dual-wavelength LED (660nm/940nm) and photodetector to measure light absorption in pulsating arteriolar vascular bed; calculates SpO2 via systolic/diastolic light absorption ratio; displays SpO2, pulse rate, and pulse amplitude bar graph; battery-operated (single button lithium battery); intended for home and clinical use (internists, surgery, anesthesia, intensive care) by patients or clinicians; provides non-continuous, non-invasive monitoring; includes low-battery alarm and auto-power-off; aids clinical decision-making through immediate physiological data; benefits patients via portable, non-invasive assessment.
Clinical Evidence
Clinical testing conducted at Beijing Friendship Hospital in accordance with ISO 9919:2005. Results confirm accuracy and safety of the device for use in clinical environments, demonstrating substantial equivalence to the predicate.
Technological Characteristics
Portable fingertip oximeter; medical silicon enclosure; dual-wavelength LED (660nm/940nm) sensor; powered by single button lithium battery; includes signal amplifier, CPU, and display unit; software-driven; complies with IEC 60601-1 (safety), IEC 60601-1-2 (EMC), and ISO 10993 (biocompatibility).
Indications for Use
Indicated for spot-check, non-invasive measurement of SpO2 and pulse rate in adult and pediatric patients in home and clinical settings. Not for continuous monitoring.
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.
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KC92652
Premarket Notification 510(k) Submission-510(K) Summary Report No .: TE20090701
# 510(k) Summary
JAN - 8 2010
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This summary of 510(k) safety and effectiveness information is being submitted in accordance with the requirements of SMDA 1990 and 21 CFR 9807.92
The Assigned 510(k) Number is:
1. Statement: This is a special 510(k) report for Fingertip Pulse Oximeter MD300CA, which is a modification device to Pulse Oximeter MD300C (K 070371). The modification does not change intended use. And the new device has different trade name to predicate device.
The applicant device, Fingertip Pulse Oximeter MD300CA is a modification device to Pulse Oximeter MD300C (K 070371). The main modifications are listed below:
| Item | MD300CA | MD300C |
|--------------------|--------------------|-------------------|
| Enclosure Material | Medical Silicon | ABS |
| Battery | One button battery | Two AAA batteries |
# 2. Applicant Device Information
Device Trade/Proprietary Name: Fingertip Pulse Oximeter MD300CA Device Classification Name: Oximeter Product Code: DQA Regulation Number: 870.2700 Device Class: II Review Panel: Anesthesiology Intended Use:
The MD300CA Fingertip Pulse Oximeter is a portable oximeter intended for spot-check use to non-invasively measure oxygen saturation of arterial hemoglobin (SpO2) and pulse rate of adult and pediatric patients at home and hospital settings (including clinical use by internists, during surgery, anesthesia, intensive care, etc.). Not for continuous monitoring.
#### 3. Submitter Information
Manufacturer Name:
Beijing Choice Electronic Technology Co., Ltd. Room 1127-1128 Building B, Bailangyuan Fuxing Road , No. A36 Beijing, CHINA 100039
#### Contact Person of the Submission:
Mr. Lei Chen No.9 Shuangyuan Road
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Premarket Notification 510(k) Submission-510(K) Summary Report No.: TE20090701
> Badachu Hi-tech Zone,Shijingshan District Beijing China 100041 Phone: +86-10-88790480 x 6106 Fax:+86-10-88798860
Email: cc@choicemmed.com
# 4. Predicate Device
Fingertip Pulse Oximeter MD300C K-number: K 070371 Product Code: DQA
Intended Use:
The MD300C Fingertip Pulse Oximeter is a portable non-invasive, spot-check, oxygen saturation of arterial hemoglobin (SpO2) and pulse rate of adult and pediatric patient at home, and hospital (including clinical use in internist/ surgery, Anesthesia, intensive care and etc). Not for continuously monitoring.
#### Manufactured by:
Beijing Choice Electronic Technology Co., Ltd. Room 1127-1128 Building B, Bailangyuan Fuxing Road , No. A36 Beijing, CHINA 100039
# 5. Device Description
The applicant device of Fingertip Pulse Oximeter MD300CA can display %SpO2, pulse rate value and vertical bar graph pulse amplitude.
The applicant device consists of a detector and emitter LED, signal amplify unit, CPU, data display unit, and power unit.
The Finger Pulse Oximeter works by applying a sensor to a pulsating arteriolar vascular bed. The sensor contains a dual light source and photo detector. The one wavelength of light source is 660 nm, which is red light; the other is 940 nm, which is ultra red light. Skin, bone, tissue, and venous vessels normally absorb a constant amount of light during systole and diastole, as blood volume increases and decreases. The ratio of light absorbed at systole and diastole is translated into an oxygen saturation measurement. This measurement is referred to as SpO2.
The applicant device has low battery voltage alarm function and automatically power of function. The power source of the applicant device is 1 button lithium battery.
The applicant device is not for life-supporting or life-sustaining, not for implant. The
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device or transducers are not sterile and the transducer does not need sterilization and the transducer is reusable but does not need re-sterilization since it is not sterile. The device is not for prescription. The device does not contain drug or biological products.
The device is electrically operated and the Electrical Safety Test report of TRS09040017 and Electromagnetic Compatibility Test report of TRE09050008 following IEC 60601-1-2 with was conducted as the environmental test for the home use. Please see the Appendix II Electrical Safety and EMC Test.
The device is software-driven and the software validation is provided in Chapter VIII Software Validation.
The Performance Test reports regarding with safety and effectiveness test of the safety mechanism preventing the excess current from leading to burning injury to user (Report No. MD300CA-01-001) and Low-Voltage Alarm System (Report No. MD300CA-01-002) are presented in Appendix III Performance Bench Test.
The Clinical Test reports following ISO 9919:2005, Medical electrical equipment Particular requirements for the basic safety and essential performance of pulse oximeter equipment for medical use are conducted in Laboratory of Beijing Friendship Hospital provided in Appendix IV Clinical Test Reports.
All applicable standards are listed in Chapter II Standards.
The device is not kit.
### 6. Effectiveness and Safety Considerations
#### Effectiveness:
The Clinical Test reports following ISO 9919:2005, Medical electrical equipment - Particular requirements for the basic safety and essential performance accuracy of pulse oximeter equipment for medical use are conducted in Beijing Friendship Hospital provided in Attachment IV Clinical Test Reports.
The accuracy of MD300CA fingertip pulse oximeter equipment is compliance to the requirement, and the product is safe during the use. It can be used in the clinical environment. It is substantially equivalent to other pulse oximeter product with the same effectiveness and safety.
### Safety Consideration:
The Performance Test reports regarding with safety and effectiveness test of the safety mechanism preventing the excess current from leading to burning injury to user (Report No. MD300CA-01-001) and Low-Voltage Alarm System (Report No. MD300CA-01-002) are presented in Attachment III Performance Bench Test.
The test results of biocompatibility of all the skin-contacting material are presented as
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IV-2 for the consideration of Biological Specifications. Please see Appendix I Table Biocompatibility Reports.
The Biological Evaluation Tests are in compliance with the standards of ISO 10993 "Biological Evaluation of Medical Devices". The compatibility of the skin-contact component material in the finished product meets the requirement of Biocompatibility
The applicant device is compliance with IEC60601-1, Medical electrical equipment Part 1: General requirements for safety and IEC60601-1-2, Medical electrical equipment - Part 1-2: General requirements for safety -Collateral standard: Electromagnetic compatibility -. Requirements and tests
# 6. Substantially Equivalence Determination
#### Comparison Analysis
The applicant device has same classification information, same indications and intended use, same design principle, same software, similar product design and specifications, same performance effectiveness, performance safety as the predicate device. The only difference is Main Material, the battery type, working time. These differences are slight and do not effluence the effectiveness and safety of the device.
#### Conclusion:
The applicant device is Substantially Equivalent (SE) to the predicate device which is US legally market device. Therefore, the applicant device is determined as safe and effectiveness.
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Image /page/4/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo features a stylized caduceus symbol, which is a staff with two snakes entwined around it, representing medicine and healing. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular pattern around the caduceus.
JAN - 8 2010
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room W-O66-0609 Silver Spring, MD 20993-0002
Mr. Lei Chen Beijing Choice Electronic Technology Company, Limited No. 9 Shuangyuan Road Badachu Hi-tech Zone, Shijingshan District Beijing CHINA 100041
Re: K092652
Trade/Device Name: Fingertip Pulse Oximeter MD300CA Regulation Number: 21 CFR 870.2700 Regulation Name: Oximeter Regulatory Class: II Product Code: DQA Dated: December 11, 2009 Received: December 11, 2009
Dear Mr. Chen:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to 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.
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# Page 2 - Mr. Chen
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 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please go to
http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR 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/cdrh/mdr/ for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (240) 276-3150 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html.
Sincerely yours,
hh for
Anthony D. Watson, B.S., M.S., M.B.A. Director Division of Anesthesiology, General Hospital, Infection Control, and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health
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# Indication For Use
510(k) Number (if known):
Device Name: __ Fingertip Pulse Oximeter MD300CA
Indications for Use:
The MD300CA Fingertip Pulse Oximeter is a portable Oximeter intended for spot-check use to non-invasively measure oxygen saturation of arterial hemoglobin (SpO2) and pulse rate of adult and pediatric patient at home and hospital settings (including clinical use in internist/ surgery, Anesthesia, intensive care and etc). Not for continuously monitoring.
> Prescription Use_ J __________________________________________________________________________________________________________________________________________________________ (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)
AND/OR
Concurrence of CDRH, Office of Device Evaluation (ODE)
L. Schultheis
(Division Sign-Off) Division of Anesthesiology, General Hospital Infection Control, Dental Devices
Page _1_ of _ l
4092652 510(k) Number:
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.