K041697 · Terumo Cardiovascular Systems Corporation · DTL · Aug 11, 2004 · Cardiovascular
Device Facts
Record ID
K041697
Device Name
TERUMO CIRCUIT CONNECTORS
Applicant
Terumo Cardiovascular Systems Corporation
Product Code
DTL · Cardiovascular
Decision Date
Aug 11, 2004
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 870.4290
Device Class
Class 2
Indications for Use
The Terumo Circuit Connectors are intended to be used to interconnect tubing and other devices within a circuit during extra-corporeal bypass procedures. The devices can be used in procedures lasting up to 6 hours in duration.
Device Story
Terumo Circuit Connectors are mechanical fittings, stopcocks, and manifolds used to interconnect tubing and devices within extra-corporeal bypass circuits. These connectors establish conduits for the flow of blood and other extra-corporeal fluids. Used in clinical settings during bypass procedures, they are operated by healthcare professionals. The device functions as a passive mechanical interface; it does not process data or provide automated outputs. By ensuring secure connections between circuit components, the device maintains circuit integrity, facilitating safe extracorporeal circulation for the patient.
Clinical Evidence
No clinical data. Substantial equivalence demonstrated via bench testing: 6-hour circulation test, dimensional analysis, structural integrity/leakage testing, and tubing connection strength testing.
Technological Characteristics
Hardened plastic connectors; various form factors (quick disconnect, slip, etc.). Sterilized via ethylene oxide to SAL 10^-6. Biocompatible per ISO 10993 for limited contact (≤ 24 hours). Passive mechanical device; no software or energy source.
Indications for Use
Indicated for use in patients undergoing extra-corporeal bypass procedures requiring the interconnection of tubing and other circuit components for durations up to 6 hours.
Regulatory Classification
Identification
A cardiopulmonary bypass adaptor, stopcock, manifold, or fitting is a device used in cardiovascular diagnostic, surgical, and therapeutic applications to interconnect tubing, catheters, or other devices.
Special Controls
*Classification.* Class II (special controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 870.9.
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AUG 1 1 2004
#### Terumo Circuit Connectors
#### Submitter Information:
This submission was prepared in June 2004 by: Garry A. Courtney, MBA, RAC Sr. Regulatory Affairs Specialist Terumo Cardiovascular Systems Corporation 125 Blue Ball Road Elkton, MD 21921 Telephone: 1-800-283-7866, Ext. 7420
This submission was prepared for: Terumo Cardiovascular Systems Corporation 28 Howe Street Ashland, MA 01721
#### Device Names:
Proprietary Name: Classification Name: Common Name:
Terumo Circuit Connectors Adaptor, Stopcock, Manifold, Fitting, Cardiopulmonary Bypass Circuit Connectors
#### Device Classification:
The Terumo Circuit Connectors are classified as: Adaptor, Stopcock, Manifold, Fitting, Cardiopulmonary Bypass - in the Code of Federal Regulations, 21, Parts 800 to 1299, § 870.4290.
### Predicate Device:
The devices submitted in this 510(k) maintain characteristics that are substantially equivalent in intended use, design, technology/principles of operation, materials and specifications to the following devices:
| Proposed Device | Predicate Device |
|---------------------------------------|--------------------------------------|
| 0007-04439 - U-Tube Connector | Brevet Connector (K895753) |
| 0007-02118 - 3/16 Male Slip Connector | Brevet Connector (K895753) - P/N 118 |
| 0007-03056 - 1/ 4" Quick Disconnect | Brevet Connector (K895753) – P/N 100 |
| 0007-04056 - 3/8" Quick Disconnect | Brevet Connector (K895753) – P/N 101 |
| 0007-05056 - 1/2" Quick Disconnect | Brevet Connector (K895753) - P/N 102 |
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### Intended Use:
The Terumo Circuit Connectors are intended to be used to interconnect tubing and other devices The Termino Circuit Connecters are mission of the devices can be used in procedures lasting up to 6 hours in duration.
## Principles of Operation and Technology:
The connectors that are the subject of this premarket notification perform by providing a connection between devices within a bypass circuit, effectively establishing a conduit between the devices for the flow of blood and other extra-corporeal fluids.
## Design and Materials:
Design and Materials:
The connectors that are the subject of this premarket notification are of various designs (quick I he connection, etc.), each of which provides for the flow of blood and extracorporeal fluids through the bypass circuit. Each of the connectors is made from various plastics - all of which are common in medical devices that are already on the market. There are no new and/or exotic materials used in the manufacturing of the proposed devices.
## Performance Evaluations:
I cryormance Brandiner.
Clinical studies are not necessary to demonstrate safety or substantial equivalence of the subject device to the predicate devices. Substantial equivalence is demonstrated with the following invitro performance evaluations:
- 6-Hour Circulation Test (Comparative v. predicate devices) .
- Dimensional Analysis (Attribute Evaluation / Not compared to predicate) .
- Structural Integrity / Leakage Testing (Attribute Evaluation / Not compared to predicate) .
- Tubing Connection Strength (Attribute Evaluation / Not compared to predicate) .
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# Substantial Equivalence Comparison:
Substantial Equivalence Compulsentially equivalent to the predicate Brevet Connector devices as follows:
- The intended uses of the Terumo Connectors and the predicate Brevet Intended Use: . Intended Ose. The meentably the same. The devices are intended to interconnect tubing and other devices within a circuit during extra-corporeal bypass procedures. The devices can be used in procedures lasting up to 6 hours in duration.
- Principles of Operation and Technology: The technology of the Terumo Connectors and the . I rincipes of Operators are identical. The devices operate by providing a mechanical production between and among the devices that comprise the extra-corporeal circuit. When connectors are sufficiently placed into position, they provide the necessary interface between circuit components to establish a conduit for the flow of fluids.
- Design and Materials: The design and the materials of the Terumo Connectors and the . predicate Brevet Connectors are essentially the same. The design of each device is similar in produce Drover Soctured of hardened plastic – and contains the necessary interface to allow for the interconnection of other devices.
- Performance: Comparisons of the performance of the Terumo Connectors and the predicate . Brevet Connectors were conducted. The comparisons demonstrated that there were no clinically significant performance differences between the devices.
## Substantial Equivalence Summary:
In summary, the Terumo Connectors and the predicate Brevet Connectors (K895753) are substantially equivalent in intended use, principles of operation and technology, design and materials, and performance. Any noted differences between the subject devices and the predicate devices do not raise new issues of safety and effectiveness.
## Additional Safety Information:
- Sterilization conditions have been validated in accordance with appropriate guidelines to . provide a Sterility Assurance Level (SAL) of 106. Terumo further asserts that the ethylene oxide residues will not exceed the maximum residue limits at the of product distribution.
- Terumo conducted biocompatibility studies as recommended in the FDA General Program • Memorandum #G95-1 (5/1/95): Use of International Standard ISO 10993, "Biological Evaluation of Medical Devices - Part 1: Evaluation and Testing." [External Communicating Devices, Circulating Blood, Limited Exposure (≤ 24 hours) Contact Duration). The blood contacting materials were found to be biocompatible.
## Conclusion:
In summary, the Terumo Circuit Connectors are substantially equivalent in intended use, principles of operation and technology, design and materials, and performance to the predicate Brevet Connectors (K895753).
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Image /page/3/Picture/2 description: The image shows the seal of the U.S. Department of Health & Human Services. The seal is circular and contains the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the top half of the circle. Inside the circle is a stylized image of a caduceus, which is a symbol of medicine.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
AUG 1 1 2004
Mr. Garry A. Courtney Regulatory Affairs Terumo Cardiovascular Systems Corporation 125 Blue Ball Road Elkton, MD 21921
Re: K041697
Trade Name: Terumo Circuit Connectors Regulation Number: 21 CFR 870.4290 Regulation Name: Circuit Connectors Regulatory Class: Class II (two) Product Code: DTL Dated: June 18, 2004 Received: June 22, 2004
Dear Mr. Courtney:
We have reviewed your Section 510(k) premarket notification of intent to market the device we nave reviewed your becamed the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate for ass sualed in the encreat 1976, the enactment date of the Medical Device Amendments, or to eonimered prior to 1125 20, 2017 3, 11:37 accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). and Cosmette (110) the efect the device, subject to the general controls provisions of the Act. I ou may, thererors, manible to determine that the medical devices you use as components in the kit have either been determined as substantially equivalent under the premarket notification Richard Section 510(k) of the act), or were legally on the market prior to May 28, 1976, the process (Declon 9 Portify of the Res), ce Amendments. Please note: If you purchase your device chaemient and of the Medical Bed) and further process (e.g., sterilize) you must submit a new components in van (non (non and in your kit. 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.
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# Page 2 - Mr. Garry A. Courtney
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it If your device is classifica (see above) the effective major regulations affecting your device can
may be subject to such additional controls. Existing major may be subject to such additional controller Little 21, Parts 800 to 898. In addition, FDA may be found in the Code of I can's concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean Please be advised that I DA s issualies of a oudevice complies with other requirements of the Act that I DA has made a acterimiations administered by other Federal agencies. You must of any reach all the Act's requirements ancluding, but not limited to: registration and listing (21 comply with an the Act 8 requirements) and manufacturing practice requirements as set CFR Part 607); adomig (21 CFR Part 820); and if applicable, the electronic form in the quality of sections (Sections 531-542 of the Act); 21 CFR 1000-1050.
This letter will allow you to begin marketing your device as described in your Section 510(k) This letter will anow you to begin maing of substantial equivalence of your device to a legally prematted predicated 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 regulation (21 CFR Part 801 and 11 you dosire specific ad 1309.10 for in vitro diagnostic devices), please contact the Office of additionally 21 CHT Part 00717 Additionally, for questions on the promotion and advertising of Compinated at (301) 591-5619 of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). regulation onlined, "Thisoraneing of esponsibilities under the Act may be obtained from the Other general mionhation turers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html
Sincerely yours,
Dma R. bohner
Bram D. Zuckerman, M.D. Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# 510(k) Number (if known): K04) & 97
Terumo Circuit Connectors Device Name:
# Indications For Use:
The Terumo Circuit Connectors are intended to be used to interconnect tubing and other The Telunio Creat Connectors are incorporeal bypass procedures. The devices can be used in procedures lasting up to 6 hours in duration.
Simy A. Courtney 06/18/2007
Garry A. Courtney, MBA, RAC
Sr. Regulatory Affairs Specialist Terumo Cardiovascular Systems
X Prescription Use
AND/OR
Over-The-Counter Use
(Per 21 CFR 801 Subpart D)
(Per 21 CFR 807 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE – CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Duna R. de Lunes
(Division Sign-Off) Division & Cardiovascular Devices
510(k) Number K041697
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.