K974080 · Johnson & Johnson Medical, Inc. · DXQ · May 18, 1998 · Cardiovascular
Device Facts
Record ID
K974080
Device Name
CRITIKON SOFT BLOOD PRESSURE CUFF
Applicant
Johnson & Johnson Medical, Inc.
Product Code
DXQ · Cardiovascular
Decision Date
May 18, 1998
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 870.1120
Device Class
Class 2
Attributes
Pediatric
Indications for Use
The CRITIKON Soft Blood Pressure Cuff is an accessory used in conjunction with non-invasive blood pressure measurement systems. The device is non-sterile and semi-disposable (may be single-patient use or optional limited reuse). It is available in neonatal, pediatric and adult sizes. The device is not designed, sold, or intended for use except as indicated.
Device Story
Device consists of soft inelastic sleeve with integrated inflatable bladder; tubing connects to manual or automated noninvasive blood pressure measurement systems. Wrapped around patient limb; secured via hook and loop closure. Used in clinical settings by healthcare providers to facilitate blood pressure monitoring. Modification from predicate involves sleeve material change for improved patient comfort. Device provides pneumatic interface for pressure measurement; does not perform analysis itself. Benefits include patient comfort and compatibility with various sphygmomanometers.
Clinical Evidence
Bench testing only. Evidence includes biocompatibility testing, validation of reprocessing protocols per AAMI TIR No. 12-1994, and mechanical testing of repeated inflations to demonstrate safety and effectiveness.
Technological Characteristics
Soft inelastic sleeve with integrated inflatable bladder; hook and loop closure. Available in neonatal, pediatric, and adult sizes. Compatible with manual and automated sphygmomanometers via single or dual tubing configurations. Non-sterile, semi-disposable. Material modified for patient comfort.
Indications for Use
Indicated for use as an accessory with non-invasive blood pressure measurement systems in neonatal, pediatric, and adult patient populations.
Regulatory Classification
Identification
A blood pressure cuff is a device that has an inflatable bladder in an inelastic sleeve (cuff) with a mechanism for inflating and deflating the bladder. The cuff is used in conjunction with another device to determine a subject's blood pressure.
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# 1974080
## MAY 1 8 1998
| <b>510(k) Summary</b> |
|-----------------------|
|-----------------------|
| <b>Date</b> | October 27, 1997 |
|-----------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| <b>Contact</b> | Darlene T. Korab<br>Sr. Project Manager<br>Regulatory Affairs<br>Johnson & Johnson Medical, Inc.<br>4110 George Road<br>Tampa, FL 33634<br>Telephone: 813-887-2663<br>Telefax: 813-887-2263<br>E Mail: dkorab@crtus.jnj.com |
| <b>Device Name</b> | CRITIKON* Soft Blood Pressure Cuff<br>The subject of this premarket notification is a modification of the currently<br>marketed Johnson & Johnson Medical, Inc. CRITIKON Soft Blood Pressure<br>Cuff (formerly DISPOSA-CUF* Soft Blood Pressure Cuff). |
| <b>Common Name</b> | Blood Pressure Cuff |
| <b>Classification</b> | The classification name, 21 Code of Federal Regulations (CFR) Part and<br>Paragraph number, product code and classification of the CRITIKON Soft<br>Blood Pressure Cuff follow. The tier categorization based on the list (January<br>27, 1994) distributed by the Office of Device Evaluation is also included. |
| Classification Name | 21 CFR Section | Product Code | Class | Tier |
|---------------------|----------------|--------------|-------|------|
| Blood Pressure Cuff | 870.1120 | DXQ | II | 2 |
Continued on next page
:
.
(12.05
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### 510(k) Summary, Continued
Predicate Devices
The CRITIKON Soft Blood Pressure Cuff is substantially equivalent to the CRITIKON (formerly DISPOSA-CUF) Soft Blood Pressure Cuff currently marketed by Johnson & Johnson Medical, Inc. The original DISPOSA-CUF Blood Pressure Cuff received market clearance on May 25, 1979 via Crest Medical Equipment 510(k) K790810. The device is virtually the same as the CRITIKON or DISPOSA-CUF Soft Blood Pressure Cuff . The CRITIKON Soft Blood Pressure Cuff is also substantially equivalent to the CUFF-ABLE* Blood Pressure Cuff currently marketed by Vital Signs, Inc. [Biomedical Dynamics 510(k) K911213] and other soft blood pressure cuffs.
| Device | Manufacturer | 510(k) |
|----------------------------------------------------------------|------------------------------------|---------|
| CRITIKON (formerly<br>DISPOSA-CUF) Soft<br>Blood Pressure Cuff | Johnson & Johnson<br>Medical, Inc. | K790810 |
| SURGI-CUF* Cuff | Ethox Corp. | K883977 |
| CUFF-ABLE Cuff | Vital Signs, Inc. | K911213 |
| Cuff-m* Cuff | Lorin Medical | K921997 |
| Soft Check* Cuff | Statcorp, Inc. | K940214 |
| Safe-Cuff* Cuff | CAS Medical Systems | Unknown |
#### Device Description
The device comprises tubing attached to a soft inelastic sleeve with an integrated inflatable bladder that is wrapped around the patient's limb and secured by hook and loop closure. The device tubing is connected to a noninvasive blood pressure measurement system.
The device is available in the following configurations:
- five neonatal and eight pediatric and adult sizes t
- single and dual cuff tubing, connectors, adapters and bulb/valve . assemblies available for use with a variety of manual and automated sphygmomanometers
Continued on next page
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## 510(k) Summary, Continued
(Individual of the state of the many of the same of
: 2018-08-08 11:2
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| Indications | The CRITIKON Soft Blood Pressure Cuff is an accessory used in conjunction<br>with non-invasive blood pressure measurement systems. The device is non-<br>sterile and semi-disposable (may be single-patient use or optional limited<br>reuse). It is available in neonatal, pediatric and adult sizes. The device is not<br>designed, sold, or intended for use except as indicated. |
|----------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Technological<br>Characteristics | The CRITIKON Soft Blood Pressure Cuff is virtually the same as the<br>CRITIKON or DISPOSA-CUF Soft Blood Pressure Cuff with the exception<br>of a modification of the sleeve material to afford greater patient comfort. The<br>CRITIKON Soft Blood Pressure Cuff is also virtually the same as the CUFF-<br>ABLE Blood Pressure Cuff and other soft blood pressure cuffs. All the above<br>devices are available in range of neonatal, pediatric and adult sizes and<br>configurations for use with a wide variety of manual and automated<br>sphygmomanometers. |
| Performance | Bench and laboratory testing was conducted to demonstrate performance<br>(safety and effectiveness) of the CRITIKON Soft Blood Pressure Cuff:<br>Biocompatibility<br>Validation of reprocessing<br>Repeated inflations |
| Conclusions | In accordance with the Federal Food, Drug and Cosmetic Act and 21 CFR<br>Part 807, and based on the information provided in this premarket<br>notification, Johnson & Johnson Medical concludes that the modified device,<br>the CRITIKON Soft Blood Pressure Cuff, is safe, effective and substantially<br>equivalent to the predicate devices as described herein. |
| Other<br>Information | Johnson & Johnson Medical, Inc. will update and include in this summary<br>any other information deemed reasonably necessary by the FDA. |
・
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Johnson Johnson
MEDICAL INC.
October 6, 1997
Critikon, a division of Johnson & Johnson Medical, Inc., certifies that the instructions for reprocessing for CRITIKON™ Soft Blood Pressure Cuffs as available in the Instructions for Use (P/N 714338) have been validated according to a formal protocol (052496), comprising sound scientific principles and laboratory procedure. The protocol is conceptually based on AAMI TIR No. 12-1994, "Designing, Testing, and Labeling Reusable Medical Devices for Reprocessing in Health Care Facilities: A Guide for Device Manufacturers." A summary of the validation procedure is attached. The protocol and subsequent laboratory report are archived in Critikon Technical File 103-1 under change control. They will be made available for inspection or supplied to FDA upon request.
John P. Clemmons Critikon R&D
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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 consists of a stylized eagle with three human profiles incorporated into its design. The words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" are arranged in a circular pattern around the eagle.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
Public Health Service
MAY | 8 1998
Ms. · Darlene T. Korab Johnson & Johnson Medical, Inc. 4110 George Road Tampa, FL 33634
Re : K974080 CRITIKON® Soft Blood Pressure Cuff Regulatory Class: II (two) Product Code: 74 DXQ February 13, 1998 Dated: Received: February 17, 1998
Dear Ms. Korab ':
We have reviewed your Section 510 (k) notification of intent to market the device referenced above and we have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to 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). 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 (Premarket Approval), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 895. A substantially equivalent determination assumes compliance with the current Good Manufacturing Practice requirements, as set forth in the Quality System Regulation (QS) for Medical Devices: General regulation (21 CFR Part 820) and that, through periodic (QS) inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP regulation may result in In addition, FDA may publish further announcements regulatory action. concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any obligation you might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or regulations.
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#### Page 2 - Ms. Darlene T. Korab
This letter will allow you to begin marketing your device as described in your 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling requlation (21 CFR Part 801 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4648. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the requlation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its internet address "http://www.fda.gov/cdrh/dsmamain.html".
Sincerely yours,
Thomas A. Gelesh
Thomas J. Callahan, Ph.D. Director Division of Cardiovascular, Respiratory, and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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#### INDICATIONS FOR USE
Page 1 of 1
510(k) Number (if known):
Device Name: CRITIKON* Soft Blood Pressure Cuff
Indications for Use:
The CRITIKON Soft Blood Pressure Cuff is an accessory used in conjunction with noninvasive blood pressure measurement systems. The device is non-sterile and semidisposable (may be single-patient use or optional limited reuse). It is available in neonatal, pediatric and adult sizes. The device is not designed, sold, or intended for use except as indicated.
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Concurrence of CDRH, Office of Device Evaluation (ODE)
Stepe R. Campbell
(Division Sign-Off)
Division of Cardiovascular, Respiratory, and Neurological Devices
¥ 974080 510(k) Number ________________________________________________________________________________________________________________________________________________________________
Prescription Use ﺎ، (per 21 CFR 801.109
OR
Over-The Counter Use (Optional Format 1-2-96)
iv
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.