HD 3161 Blood Pressure Monitor is intended to be used to measure the systolic and diastolic blood pressure and pulse rate by using a non-invasive technique in which an inflatable cuff is wrapped on the upper arm. This system should only be used for the testing on people over 18 years of age and over. This device is not intended to be a diagnostic device. Contact your physician if hypertensive values are indicated. The cuff circumference is limited to be 9.44 to 16.9 inches (24cm〜43cm).
Device Story
Device measures systolic/diastolic blood pressure and pulse rate using oscillometric method; utilizes inflatable upper arm cuff and semiconductor gauge sensor. Microcomputer processes vibrating signals from closed air pipe system to detect pulse characteristics; systolic pressure identified when oscillating amplitude begins increasing; diastolic pressure identified when amplitude stops decreasing. Device intended for home/clinic use by adults; provides readings on LCD monitor. Output assists users in monitoring blood pressure trends; users advised to contact physician if hypertensive values indicated. Benefits include non-invasive, stethoscope-free blood pressure monitoring.
Clinical Evidence
Bench testing only. Device demonstrated compliance with IEC 60601-1:2005, IEC 60601-1-11:2010, EN 1060-1:2002, EN 1060-3:2005, IEC 60601-1-2:2007, IEC 80601-2-30:2013, and AAMI/ANSI/ISO 81060-2:2013. Biocompatibility testing passed per ISO 10993-5:2009 and ISO 10993-10:2010. FCC compliance verified per ANSI C63.4:2009.
Technological Characteristics
Oscillometric measurement via semiconductor gauge sensor. Nylon cuff with non-latex PVC bladder. Powered by batteries or AC adapter. LCD display. Complies with IEC 60601-1, IEC 60601-1-11, EN 1060-1/3, IEC 60601-1-2, IEC 80601-2-30, AAMI/ANSI/ISO 81060-2, and ISO 10993-5/10. Connectivity via standard electronic control valve for air release.
Indications for Use
Indicated for non-invasive measurement of systolic/diastolic blood pressure and pulse rate in adults (18+ years) via upper arm cuff. Not for diagnostic use.
Regulatory Classification
Identification
A noninvasive blood pressure measurement system is a device that provides a signal from which systolic, diastolic, mean, or any combination of the three pressures can be derived through the use of tranducers placed on the surface of the body.
Predicate Devices
U-RIGHT TD-3127 Blood Pressure Monitoring System (K100658)
Submission Summary (Full Text)
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Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
DEPARTMENT OF HEALTH & HUMAN SERVICES - USA
September 8, 2014
BioCare Asia Corporation Ltd. c/o Dr. Ke-Min Jen Official Correspondent No. 260, Mayun Road New District Suzhou. Jiangsu. 215129 P.R.C.
Re: K141924
> Trade/Device Name: HD Blood Pressure Monitor, Upper Arm Type: 3161 Regulation Number: 21 CFR 870.1130 Regulation Name: Non-invasive Blood Pressure Measurement System Regulatory Class: Class II Product Code: DXN Dated: July 5, 2014 Received: July 16, 2014
Dear Dr. Ke-Min Jen:
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.
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
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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 devicerelated 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 Industry and Consumer Education at its toll-free 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" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for 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 Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely vours
Arthell Stein
for Bram D. Zuckerman, M.D. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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K141924
Page __1__ of __1__
510(k) Number (if known): K141924
Device Name: __ HD Blood Pressure Monitor, Upper Arm Type: 3161
Indications For Use: HD 3161 Blood Pressure Monitor is intended to be used to measure the systolic and diastolic blood pressure and pulse rate by using a non-invasive technique in which an inflatable cuff is wrapped on the upper arm. This system should only be used for the testing on people over 18 years of age and over.
This device is not intended to be a diagnostic device. Contact your physician if hypertensive values are indicated. The cuff circumference is limited to be 9.44 to 16.9 inches (24cm〜43cm).
#### (PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Over-The-Counter Use X
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K141924 Page 1 of 4
## Summary of Safety and Effectiveness
(According to 21 CFR 807.92)
# 510(k) Summary for ____K141924_____
| | Submitter's information | | | | |
|--|-------------------------|--|--|--|--|
| | | | | | |
| Name | : | BioCare Asia Corporation Ltd. |
|-----------------------|---|---------------------------------------------------------------------------------------------|
| Address | : | No.260, Mayun Road, New District, Suzhou, Jiangsu, 215129, P.R.C |
| Phone number | : | +86 (512) 6809-1772 |
| Fax number | : | +86 (512) 6809-7761 |
| Representative person | : | Albert Chen / Administrator |
| FDA Registration | : | # 3003979308 |
| 510k Contact person | : | Dr. Jen, Ke-Min<br>Tel: +886-3-5208829 Fax:+886-3-5209783<br>Email: ceirs.jen@msa.hinet.net |
| Date of preparation | : | July 1, 2014 |
| Device name | | |
| Trade name | : | BioCare Asia HD 3161 Blood Pressure Monitor |
| Device name | : | HD Blood Pressure Monitor, Upper Arm Type: 3161 |
| Common name | : | Blood Pressure Monitor |
| Classification | | |
| Classification name | : | Non-Invasive Blood Pressure Monitoring System |
| Regulation number | : | 21CFR Section 870.1130 |
| Class | : | II (Two) performance standards |
| Specialty | : | Cardiovascular |
| Product code | : | DXN |
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#### Predicate devices
U-RIGHT TD-3127 Blood Pressure Monitoring System (K100658) TaiDoc Technology Corporation
#### Device Information
- Device description: HD 3161 Blood Pressure Monitor measures both systolic and diastolic blood pressure and heart pulse rate via a standard oscillometric method. The oscillometric method senses the vibrating signal via the closed air pipe system and utilizes a microcomputer to automatically sense the characteristics of the pulse signal. Unlike with the traditional measuring method, based on the Korotkov sound, with the oscillometric method the use of a stethoscope is not required. Through simple calculations, this method provides accurate blood pressure readings: the systolic pressure is defined as the blood pressure when the cuff pressure oscillating amplitude begins to increase, while the diastolic blood pressure is defined as the pressure when the cuff pressure oscillating amplitude stops decreasing.
Indication for use: HD 3161 Blood Pressure Monitor is intended to be used to measure the systolic and diastolic blood pressure and pulse rate by using a non-invasive technique in which an inflatable cuff is wrapped on the upper arm. This system should only be used for the testing on people over 18 years of age and over.
> This device is not intended to be a diagnostic device. Contact your physician if hypertensive values are indicated. The cuff circumference is limited to be 9.44 to 16.9 inches (24cm~43cm).
#### Test Summary:
- 1. ELECTRIC SAFETY, EMC and Biocompatibility test reports,
| General safety | IEC 60601-1:2005 | PASS |
|--------------------|--------------------------------|------|
| | IEC 60601-1-11:2010 | PASS |
| | EN 1060-1:2002, EN 1060-3:2005 | PASS |
| EMC conformity | IEC 60601-1-2: 2007 | PASS |
| Biocompatibility | ISO 10993-5:2009 | PASS |
| | ISO 10993-10:2010 | PASS |
| FCC 47 CFR Part 18 | ANSI C63.4: 2009 | PASS |
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K141924
Page 3 of 4
### 2. PERFORMANCE & CLINICAL TEST
IEC 80601-2-30:2013
AAMI / ANSI / ISO 81060-2:2013
#### Comparison with predicate device and conclusion
Similarities:
| Comparison item | Proposed device | Predicate device |
|---------------------------------------|--------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------|
| Applicant | BioCare Asia Corporation Ltd. | TaiDoc Technology Corporation |
| Trade name | BioCare Asia HD 3161 Blood Pressure<br>Monitor | U-RIGHT TD-3127 Blood Pressure<br>Monitoring System |
| Model name | HD 3161 | TD-3127 |
| 510K number | New listing | K100658 |
| Technological<br>characteristics | Oscillometric method | Oscillometric method |
| Measuring method | Oscillometric method, automatic<br>inflation and measurement | Oscillometric method, automatic<br>inflation and measurement |
| Sensor | Semiconductor gauge sensor | Semiconductor gauge sensor |
| Rapid air release | By an active electronic control valve | By an active electronic control valve |
| System<br>anatomical sites | Upper arm | Upper arm |
| Display and user<br>interaction | LCD monitor | LCD monitor |
| Power source | Batteries or AC adapter | Batteries or AC adapter |
| Measurement range | Systolic 50 - 250 mmHg<br>Diastolic 30 - 180 mmHg<br>Pulse 40 – 199 beats per minute | Systolic 50 - 250 mmHg<br>Diastolic 30 - 180 mmHg<br>Pulse 40 - 199 beats per minute |
| Pressure accuracy | Pressure: ±3mmHg or ±2% of readout<br>value | Pressure: ±3mmHg or ±2% of readout<br>value |
| Pulse accuracy | ±4% of reading value | ±4% of reading value |
| Operating temperature<br>and humidity | Temperature: 32~104°F (0~40°C)<br>RH:15% to 90% | Temperature: 32~104°F (0~40°C)<br>RH:15% to 90% |
| Storage temperature<br>and humidity | Temperature: 23~122°F (-5~50°C)<br>RH:15% to 95% | Temperature: 23~122°F (-5~50°C)<br>RH:15% to 95% |
| Cuff material | Cuff: nylon (PVC bladder, non-latex)<br>Biocompatibility:<br>ISO 10993-5:2009, ISO 10993-10:2010 | Cuff: nylon (PVC bladder, non-latex)<br>Biocompatibility:<br>ISO 10993-5:2009, ISO 10993-10:2010 |
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K141924
Page 4 of 4
#### Differences:
| Comparison item | Proposed device | Predicate device |
|--------------------------|---------------------------------|----------------------------------|
| Dimensions<br>(L*W*H) mm | 134.8(L)x94.6(W)x31.5(H) mm | 150(L) × 96(W) × 66(H)mm |
| Weight | 425g (w batteries) | 250g |
| Memory | 2 * 90 measurements | 100 measurements |
| Auto shutoff | 90 sec after last key operation | 180 sec after last key operation |
#### Summary with predicate device and conclusion
The new device, HD 3161 Blood Pressure Monitor is substantially equivalent to the U-RIGHT TD-3127 Blood Pressure Monitoring System (K100658) and they are the same upper arm type of the blood pressure monitor.
The intended use and the indications for use of the HD 3161 Blood Pressure Monitor as described in its labeling are the same as the predicate device and the two devices are intended to be used in the same measurement range; in addition, there are the same operating and storage environments.
The HD 3161 Blood Pressure Monitor and the predicate devices are substantially equivalent in all of the technological characteristics of patient contact materials, performance, biocompatibility function, mechanical safety, standards met, electrical safety, and EMC.
The main differences for the two devices are overall dimensions, including dimensions, weight, memory, and the time of auto shutoff. The overall appearance differences are not safety aspect. Thus the new device is substantially equivalent to the predicate devices in this aspect.
BioCare Asia Corporation Ltd. believes this information and the referred documentation to be sufficient for the FDA to find our proposed device substantially equivalent to the predicate product and other products currently in distribution.
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Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.