BOKANG SEMI-AUTO / AUTOMATIC / WRIST DIGITAL BLOOD PRESSURE MONITOR
Applicant
Wenzhou Bokang Instruments Co., Ltd.
Product Code
DXN · Cardiovascular
Decision Date
Feb 21, 2012
Decision
SESE
Submission Type
Abbreviated
Regulation
21 CFR 870.1130
Device Class
Class 2
Indications for Use
Bokang Digital Blood Pressure Monitor, Model BK6001, Model BK6002 and Model BK6023 are non-invasive blood pressure (NIBP) monitors which use a standard oscillometric measurement method and intend for noninvasive measurement of systolic and diastolic blood pressure and determination of pulse rate by using an inflating cuff which is wrapped around the upper arm or wrist. The device is indicated for use in adults only.
Device Story
Digital NIBP monitors (BK6001, BK6002, BK6023) utilize oscillometric measurement method; cuff wrapped around upper arm or wrist; inflation via manual pump (BK6001) or electrical pump (BK6002, BK6023). Pressure transducers detect oscillations; electric valve controls deflation. Device calculates systolic/diastolic pressure and pulse rate; displays results on LCD; stores/averages previous readings. Used in home or clinical settings by adults. Output informs users of blood pressure status; aids in monitoring cardiovascular health.
Clinical Evidence
Controlled human clinical studies conducted per Bokang Clinical Test Protocol. Evaluated clinical bias, uncertainty, and repeatability. Results met ANSI/AAMI SP-10 requirements.
Technological Characteristics
Oscillometric measurement principle; electrical or manual air pump; pressure transducer; electric valve for deflation; LCD display. Powered by internal electronics. Complies with ANSI/AAMI SP-10 standards.
Indications for Use
Indicated for non-invasive measurement of systolic/diastolic blood pressure and pulse rate in adults only using an upper arm or wrist cuff.
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
A & D LifeSource UA-704 Digital Blood Pressure Monitor (K032499)
Bioland Blood Pressure Monitor Model 2001, 2003, 3000 (K083681)
Submission Summary (Full Text)
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K////41
FEB 2 1 2012
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## 温州市博康仪表有限公司
ROKANG INSTRUMENTS CO.,LTD
#### 510(K) Summary
Johnny Cao and Jack Cheng Contact Hangzhou Gainder Enterprises Administration Consulting Co., Ltd Room 1623,Block B, No.83 north Qiutao Road, Hangzhou,310016 P.R.China Tel: +86-571-86984378 Fax: +86-571-89265351
Xiang Youwang Submitter Wenzhou Bokang Instruments Co.,Ltd Haining road, Haibin Longwan, Wenzhou, Zhejiang 325024 P.R.China Tel:+86-577-86876969 Fax:+86-577-86880123
Bokang Digital Blood Pressure Monitor, Model BK6001, Model Proprietary Name BK6002 and Model BK6023
Noninvasive blood pressure measurement system. Common Name Noninvasive blood pressure measurement system. Classification Name
Cardiovascular Panel
# Classification
| classification name | 21 CFR<br>section | Product code | Class |
|---------------------------------------------------------|-------------------|--------------|-------|
| Noninvasive blood<br>pressure<br>measurement<br>system. | 870.1130 | DXN | II |
## Predicate Device
A & D LifeSource UA-704 Digital Blood Pressure Monitor (K032499) Bioland Blood Pressure Monitor Model 2001, 2003, 3000 (K083681)
# Description and Indication for Use
Description and Hidreanon 10. Son-invasive blood pressure (NIBP) monitors which use a standard oscillometric measurement method and intend for noninvasive wither ass a buildira over in the blood pressure and determination of pulse rate for adults only.
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Image /page/1/Picture/0 description: The image shows a logo with the text "BBOKANG" in a stylized font. Below the logo, there is some smaller text that is difficult to read. To the right of the logo, there is Chinese text followed by the English translation "BOKANG INSTRUMENTS CO., LTD.". The logo and text appear to be for a company or organization.
Model BK6001 is a semi-auto digital non-invasive blood pressure monitors which respectively use an inflation cuff wrapped around the upper arm. The cuff is inflated by a manual air pump.
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Model BK6002 is an automatic digital non-invasive blood pressure monitors which respectively use an inflation cuff wrapped around the upper arm. The cuff is inflated automatically by an electrical air pump.
Model BK6023 is a wrist automatic digital non-invasive blood pressure monitors which respectively use an inflation cuff wrapped around the wrists. The cuff is inflated automatically by a electrical air pump.
The systolic, diastolic blood pressures and heart beats are transmitted via air pressure in the inflated cuff to transducer for the determination with oscillometric method. The cuff integrated with bladder is inflated by air pump. The deflation rate is controlled rapidly and automatically released by a electric valve at a constant rate after the measurement. The measurement results including diastolic, systolic pressure and heart pulse rate are displayed on the LCD. Besides the real-time display, the blood pressure and pulse values are also averaged, stored, and recalled from the last data.
### Performance
. P
ﺔ
Bokang Digital Blood Pressure Monitors have been tested to meet the requirement of ANSI/AAMI SP-10 standard and FDA guidance "Non-invasive Blood Pressure Monitor Guidance"
#### Substantial Equivalency
After analyzing both bench and clinical testing data, it is the conclusion of Bokang Digital Blood Pressure Monitor. Model BK6001, Model BK6002 and Model BK6023 are substantial equivalent to the predicate device, A & D LifeSource UA-704 Digital Blood Pressure Monitor (K032499) and Bioland Blood Pressure Monitor Model 2001, 2003, 3000 (K083681).
# Discussion of Clinical Tests Performed:
Controlled human clinical studies were conducted using the Bokang Digital Blood Pressure Monitor, Model BK6001, Model BK6002 and Model BK6023. Clinical data was presented which evaluated clinical bias, clinical uncertainty and clinical repeatability per the Bokang Clinical Test Protocol outline and meet the requirement of AAMI SP10.
#### Conclusions:
Bokang Digital Blood Pressure Monitor, Model BK6001, Model BK6002 and Model BK6023 have the same intended use and similar technological characteristics as the above predicate devices. Moreover, information contained in this submission supplied demonstrates that any differences in their characteristics do not raise any new questions of safety or effectiveness. Thus, Bokang Digital Blood Pressure Monitors are substantially equivalent to the predicate devices
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# DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/2/Picture/1 description: The image is a black and white circular seal for the Department of Health & Human Services USA. The seal features the department's logo, which is a stylized eagle with three stripes representing the department's mission of providing essential human services. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" is arranged around the perimeter of the seal.
#### Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002
FEB 2 1 2012
Wenzhou Bokang Instruments Co., Ltd. c/o Mr. Xiang Youwang President Haining Road Haibin Longwan Zone Wenzhou, Zhejiang 325024 P.R. China
Re:
K11141
Trade/Device Names:
Bokang Semi-auto Digital Blood Pressure Monitor, Model BK6001 Bokang Automatic Digital Blood Pressure Monitor, Model BK6002 Bokang Wrist Digital Blood Pressure Monitor, Model BK6023
Regulatory Number: 21 CFR 870.1130
Regulation Name: Noninvasive Blood Pressure Measurement System Regulatory Class: Class II (Two) Product Code: DXN Dated: Undated
Received: February 8, 2012
Dear Mr. Xiang:
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
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Page 2 - Mr. Xiang Youwang
adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register. Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limpited 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/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 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 yours,
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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# Indications For Use Form
Page 1 of 1
KI11141 510(k) Number (if known): _
Device Name:
Indications for Use:
Bokang Digital Blood Pressure Monitor, Model BK6001, Model BK6002 and Model BK6023 are non-invasive blood pressure (NIBP) monitors which use a standard oscillometric measurement method and intend for noninvasive measurement of systolic and diastolic blood pressure and determination of pulse rate by using an inflating cuff which is wrapped around the upper arm or wrist. The device is indicated for use in adults only.
Prescription Use (Part 21 CFR 801 Subpart D) AND/ OR
Over-The-Counter Use (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)
| Concurrence of CDRH, Office of Device Evaluation (ODE) | |
|--------------------------------------------------------|---------|
| (Division Sign-Off) Division of Cardiovascular Devices | |
| 510(k) Number | K111141 |
4-1
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.