K131210 · Shenzhen Pump Medical System Co., Ltd. · FLL · Mar 18, 2014 · General Hospital
Device Facts
Record ID
K131210
Device Name
ELECTRONIC THERMOMETER
Applicant
Shenzhen Pump Medical System Co., Ltd.
Product Code
FLL · General Hospital
Decision Date
Mar 18, 2014
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 880.2910
Device Class
Class 2
Attributes
Pediatric
Indications for Use
It is intended for use in measuring human body temperature (Armpit or Oral).
Device Story
Electronic thermometer (Models TF3100, TF3101, TF3102) measures human body temperature; utilizes thermistor sensor to convert temperature into electronic signal; signal processed and displayed on LCD; device powered by 3.7V rechargeable lithium battery; intended for clinical or home use; provides digital temperature readout to user; aids in monitoring body temperature for clinical decision-making.
Clinical Evidence
No clinical data provided. Substantial equivalence supported by bench testing, including electrical safety (IEC 60601-1), performance (ASTM E1112-00), environmental testing (IEC 60601-1-11), EMC (EN 60601-1-2), and biocompatibility (ISO 10993-5, ISO 10993-10).
Technological Characteristics
Thermistor-based sensing; ABS plastic and stainless steel construction; 3.7V rechargeable lithium battery; LCD display; IP22 water-proof rating; temperature range 32.00°C–42.00°C; accuracy 0.05°C (35.30°C–39.00°C) and 0.1°C otherwise; 0.01°C resolution; 5-minute response time; standards: IEC 60601-1, ASTM E1112-00, IEC 60601-1-11, EN 60601-1-2, ISO 10993.
Indications for Use
Indicated for measuring human body temperature via armpit or oral sites in patients of all ages.
Regulatory Classification
Identification
A clinical electronic thermometer is a device used to measure the body temperature of a patient by means of a transducer coupled with an electronic signal amplification, conditioning, and display unit. The transducer may be in a detachable probe with or without a disposable cover.
Special Controls
(1) Device is not a clinical thermometer with telethermographic functions;
(2) Device is not a clinical thermometer with continuous temperature measurement functions; and
(3) Appropriate analysis and testing (such as that outlined in the currently FDA-recognized editions, as appropriate, of ISO 80601-2-56, “Medical electrical equipment—Part 2-56: Particular requirements for basic safety and essential performance of clinical thermometers for body temperature measurement,” or ASTM E1965, “Standard Specification for Infrared Thermometers for Intermittent Determination of Patient Temperature,” or ASTM E1112, “Standard Specification for Electronic Thermometer for Intermittent Determination of Patient Temperature,” or ASTM E1104, “Standard Specification for Clinical Thermometer Probe Covers and Sheaths”) must validate specifications and performance of the device.
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#### K131210
# 510(k) Summary
### 1. Applicant
| Applicant Name: | SHENZHEN PUMP MEDICAL SYSTEM CO., LTD. |
|-----------------|-----------------------------------------------------------------------------------------------------------------------------|
| Address: | 2/F West, M-7 Sinosteel Building, Maqueling Estate,<br>Hi-Tech Industrial Park, Nanshan District,<br>Shenzhen 518057, China |
Contact person:
| Name: | Xie Qiongyu |
|----------------|--------------------|
| Phone numbers: | 86-0755-26710795 |
| Fax numbers: | 86-0755-26012025 |
| E-mail: | xieqy@bpump.com.cn |
| Date Prepared: | 2013-04-20 |
## 2. Device information
- Trade name: Electronic Thermometer .
- Model No.: TF3100, TF3101, TF3102 .
- Classification name: Thermometer, electronic, clinical (per CER 880.2910) .
- . Class: 2
- . Requlation Medical Specialty : General Hospital
- . Review Panel: General Hospital
- Product code: FLL- Clinical Electronic Thermometer .
- Regulation Description: Clinical electronic thermometer .
- Regulation Number: 880.2910
Indications for Use: It is intended for use in measuring temperature in the human body (Armpit or Oral).
#### Predicates
Digital thermometer Model MT Series K-number: K062784 Product Code: FLL
# Indications for Use:
The devices Model MT series (MT-201, MT-301, MT-402, and MT-403) are intended to measure the human body temperature in regular mode orally, rectally or under the arm, and the devices are reusable for clinical or home use on people of all ages.
Manufacture: SEJOY ELECTRONICS & INSTRUMENTS CO., LTD.
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# 4. Description of the device
The body temperature is converted into electronic signal by the temperature sensor, and then the electronic signal is converted into LCD digital display.
The Electronic Thermometers TF3100, TF3101 and TF3102 have the same basic principles, main function, performance and intended use, and they are consistent in product structure and material.
| ELEMENT OF<br>COMPARISON | Electronic Thermometer<br>Model No.: TF3100, TF3101,<br>TF3102<br>Manufacture: SHENZHEN PUMP<br>MEDICAL SYSTEM CO., LTD. | Digital thermometer MT Series<br>(K062784)<br>Manufacture: SEJOY ELECTRONICS<br>& INSTRUMENTS CO., LTD. |
|------------------------------------|--------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| thermometer type | TF3100, TF3101, TF3102 | MT-301 |
| intended use(s) | It is intended for use in measuring<br>temperature in the human body<br>(Armpit or Oral). | The devices Model MT series<br>(MT-201, MT-301, MT-402, and<br>MT-403) are intended to measure the<br>human body temperature in regular<br>mode orally, rectally or under the<br>arm, and the devices are reusable for<br>clinical or home use on people of all<br>ages. |
| components | Temperature sensor, liquid crystal display, battery and circuit of motherboard | |
| sensor | Thermistor | |
| signal processing and<br>display | Using the resistance change of thermal resistor to detect body temperature,<br>and displayed through the LCD. | |
| power requirements | DC3.7V Rechargeable Lithium<br>Battery | One 1.5 V Button Battery model LR 41 |
| Materials | ABS plastic and stainless steel | |
| temperature range | $32.00°C ~ 42.00°C$ | $32.00°C - 42.90°C$ |
| ambient temperature<br>environment | $+5°C~+40°C$ | $10°C ~ 35°C$ |
| accuracy | $0.05°C(35.30°C ~ 39.00°C)$<br>$0.1°C( < 35.30°C or > 39.00°C )$ | $±0.1°C,35.5°C - 42.0°C$<br>$±0.2°C under 35.5°C or over 42.0°C$ |
| precision and<br>repeatability | 4 numerical digits, display in 0.01<br>degree increments | 4 numerical digits, display in 0.01<br>degree increments |
| Response time | 5 minutes | 5 minutes |
| Water-proof | IP22 | IP22 |
# 5. Comparison to Predicate Devices
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Comparing to the predicate, the subject devices used same the Measuring Principle, same electrical measurement technologic and same measurement site (Measuring on Armpit or Oral). The subject devices do not constitute a new intended use.
As a result, the subject device is Substantially Equivalent (SE) to the predicate which is US legally market device.
#### 6. Discussion of Non-Clinical Tests Performed for Determination of Substantial
#### Equivalence
Laboratory testing was conducted to validate and verify that Electronic Thermometer met all requirements of related international standards, including electrical safety, EMC, biocompatibility, specification. Results of these tests demonstrate compliance to the requirements of the bellow consensus standards.
| Standard: |
|------------------------------------------------------------------|
| Electrical Safety and performance requirements: |
| IEC 60601-1 |
| ASTM E1112-00 |
| Home-used medical equipment requirements and Environmental test: |
| IEC 60601-1-11 |
| Electromagnetic Compatibility Requirements: |
| EN 60601-1-2 |
| Biocompatibility Evaluation for the part contacted to patient |
| ISO 10993-5, ISO 10993-10 |
#### 7. Clinical Evaluation
Clinical evaluation of Electronic Thermometers has been conducted by SHENZHEN PUMP MEDICAL SYSTEM CO., LTD.
## 8. Conclusion
As stated above, the Electronic Thermometer (Models: TF3100, TF3101 and TF3102) have the same intended use and similar technological characteristics as the cleared devices of the digital thermometer MT series (K062784).
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Moreover, the Electronic Thermometer (Models: TF3100, TF3101 and TF3102) comply with the appropriate medical device standards. Verification and validation test reports contained in this submission demonstrate that any differences in their characteristics do not raise any new questions of safety or effectiveness.
Furthermore, those engineering differences do not affect the intended use or alter the fundamental scientific technology of the cleared devices of the digital thermometer MT series (K062784).
As a result, Electronic Thermometers (Models: TF3101 and TF3102) are safety and effective, and substantially equivalent to the earlier identified predicate devices.
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Public Health Service
Food and Drug Administration 0903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
#### March 18, 2014
SHENZHEN PUMP MEDICAL SYSTEM Company, Limited C/O Ivy Chen Shenzhen Huatongwei International Inspection Co., Ltd. Keji Nan No.12 Road, Hi-tech Park Shenzhen, Guangdong 518057 CHINA
Re: K131210
Trade/Device Name: Electronic Thermometer, Models TF3100, TF3101, TF3102 Regulation Number: 21 CFR 880.2910 Regulation Name: Clinical Electronic Thermometer Regulatory Class: Class II Product Code: FLL Dated: November 27, 2013 Received: March 13, 2014
Dear Ms. 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. 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.
|
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Page 2 - Ms. 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 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 contact the Division of Small Manufacturers, International and Consumer Assistance at its tollfree number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Also. please note the regulation entitled, "Misbranding by reference to premarket notification" (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/Medical/Devices/Safety/Reportal?roblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers. International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm.
Sincerely vours.
# Mary S. Runner -S
Erin 1. Keith. M.S. Acting Division 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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DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration
#### Indications for Use
510(k) Number (if known) K131210
# Device Name
Electronic Thermometer, Models TF3100, TF3101, TF3102
Indications for Use (Describe)
(Armpit or Oral) . It is intended for use in measuring human body temperature
Type of Use (Select one or both, as applicable)
Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON A SEPARATE PAGE IF NEEDED.
Image /page/6/Figure/11 description: The image shows a document with the header "FOR FDA USE ONLY". It indicates the concurrence of the Center for Devices and Radiological Health (CDRH) and includes a digital signature by Richard C. Chapman. The signature date is specified as 2014.03.18 at 09:36:56 with a time zone offset of -04'00'.
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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.