The CAPIOX® RX Hollow Fiber Oxygenators with/without Hardshell Reservoir are intended to be used to exchange gases between blood and a gaseous environment to satisfy the gas exchange needs of a patient during cardiopulmonary bypass surgery. The integral heat exchanger is used to warm or cool blood and/or perfusion fluid as it flows through the device. The (detachable) hardshell reservoir(s) is (are) used to store blood during extra-corporeal circulation from both venous line and the cardiotomy line (via gravity or vacuum assisted venous drainage procedures). The reservoir contains a venous section that is comprised of a filter and defoamer to facilitate air bubble removal. The cardiotomy section of the reservoir contains a filter to remove particulate matter and a defoamer to facilitate air bubble removal. The reservoir may also be used for Post Operative Chest Drainage Procedures. The CAPIOX® RX Oxygenators with/without Hardshell Reservoirs can be used in procedures lasting up to 6 hours. The CAPIOX® RX15 is for use with patients when the required blood flow rate will not exceed 5.0 L/min when used with a 4 Liter Reservoir; and when the required blood flow rate will not exceed 4.0 L/min when used with a 3 Liter Reservoir). The CAPIOX® RX25 is for use with patients when the required blood flow rate will not exceed 7.0 L/min.
Device Story
Device is a hollow fiber oxygenator with integrated heat exchanger and hardshell reservoir for cardiopulmonary bypass. Inputs: venous blood from patient; gas for oxygenation; temperature-controlled water for heat exchange. Operation: porous fiber bundle facilitates gas diffusion between blood and gas phases; stainless steel heat exchanger regulates blood temperature; reservoir filters/defoamers remove air bubbles and particulates from venous/cardiotomy lines. Output: oxygenated, temperature-regulated blood returned to patient. Used in OR by perfusionists/surgeons. Modification adds positive pressure relief valve to reservoir lid to prevent excessive pressure accumulation. Benefits: maintains gas exchange and temperature control during bypass; provides safe blood storage and filtration; prevents over-pressurization.
Clinical Evidence
No clinical data. Substantial equivalence demonstrated via in-vitro performance evaluations including reservoir pressure assessment, positive/negative pressure testing, pressure relief valve performance, usability testing, sterilization assessment, shock/drop/vibration testing, and shelf-life conditioning.
Technological Characteristics
Materials: nylon, polycarbonate, stainless steel, PVC, polyurethane, polyester, polypropylene, polyethylene, X-Coating™. Technology: porous hollow fiber membrane for gas exchange; stainless steel/polycarbonate heat exchanger. Form factor: integrated oxygenator/reservoir. Connectivity: none. Sterilization: not specified.
Indications for Use
Indicated for patients undergoing open heart surgical procedures requiring cardiopulmonary bypass for up to 6 hours. RX15 model indicated for blood flow rates up to 5.0 L/min (4.0 L/min for specific 3L reservoir configurations). RX25 model indicated for blood flow rates up to 7.0 L/min. Reservoir indicated for venous/cardiotomy blood storage, vacuum-assisted venous drainage, post-operative chest drainage, and autotransfusion.
Regulatory Classification
Identification
A cardiopulmonary bypass oxygenator is a device used to exchange gases between blood and a gaseous environment to satisfy the gas exchange needs of a patient during open-heart surgery.
Special Controls
*Classification.* Class II (special controls). The special control for this device is the FDA guidance document entitled “Guidance for Cardiopulmonary Bypass Oxygenators 510(k) Submissions.”
{0}------------------------------------------------
# SECTION 5 – 510(k) Summary
Modified Capiox® RX Oxygenator/Reservoir
MAR 1 3 2013
| Submitter Information | 22 |
|----------------------------------------|----|
| Device Names/Classifications | 22 |
| Identification of Predicate Device | 22 |
| Intended Use | 23 |
| Principles of Operation and Technology | 23 |
| Design and Materials | 24 |
| Performance Evaluations | 24 |
| Substantial Equivalence Comparison | 25 |
| Substantial Equivalence Statement | 25 |
| Conclusion for 510(k) Summary | 25 |
{1}------------------------------------------------
Image /page/1/Picture/0 description: The image shows the logo for Terumo. The logo consists of a circle with the letter T inside of it. To the right of the circle is the word "TERUMO" in all capital letters.
#### Submitter Information:
Contact: This submission was prepared in February 2013 by: Suzanne Grenier, RAC Sr. Regulatory Affairs Specialist Terumo Cardiovascular Systems Corp. 125 Blue Ball Road Elkton, MD 21921 Telephone: 1-800-262-3304, Ext. 7688
This submission was prepared for: Terumo Cardiovascular Systems Corporation 125 Blue Ball Road Elkton, MD 21921 Registration #1124841
Device Names/Classifications: Proprietary Name
Classification Name
Common Name
Blood Gas Oxygenator
Capiox® RX Hollow Fiber Oxygenator with/without Hardshell Reservoir
Cardiopulmonary Bypass Oxygenator (Code: DTZ)
Blood Reservoir
#### Cardiopulmonary Bypass Blood Reservoir (Code DTN)
### Predicate Device:
The device submitted in this 510(k) maintains characteristics that are substantially equivalent in intended use, design, technology/principles of operation, materials and specifications to the following devices:
CAPIOX® RX Hollow Fiber Oxygenator with/without Hardshell Reservoir (K062381)
{2}------------------------------------------------
#### Intended Use:
### The intended use remains the same as the intended use in the cleared submission (K062381). There have been no changes to the indications or intended use of the modified devices.
#### The (modified) CAPIOX® RX Hollow Fiber Oxygenator with/without Hardshell Reservoir Intended Use:
The CAPIOX® RX Hollow Fiber Oxygenators with/without Hardshell Reservoir are intended to be used to exchange gases between blood and a gaseous environment to satisfy the gas exchange needs of a patient during cardiopulmonary bypass surgery.
The integral heat exchanger is used to warm or cool blood and/or perfusion fluid as it flows through the device.
The (detachable) hardshell reservoir(s) is (are) used to store blood during extra-corporeal circulation from both venous line and the cardiotomy line (via gravity or vacuum assisted venous drainage procedures). The reservoir contains a venous section that is comprised of a filter and defoamer to facilitate air bubble removal. The cardiotomy section of the reservoir contains a filter to remove particulate matter and a defoamer to facilitate air bubble removal. The reservoir may also be used for Post Operative Chest Drainage Procedures.
The CAPIOX® RX Oxygenators with/without Hardshell Reservoirs can be used in procedures lasting up to 6 hours.
The CAPIOX® RX15 is for use with patients when the required blood flow rate will not exceed 5.0 L/min when used with a 4 Liter Reservoir; and when the required blood flow rate will not exceed 4.0 L/min when used with a 3 Liter Reservoir).
The CAPIOX® RX25 is for use with patients when the required blood flow rate will not exceed 7.0 L/min.
#### Principles of Operation and Technology:
#### The technological characteristics and principles of operation remain the same as that of the predicate device (K062381). There have been no changes to the fundamental scientific technology of the modified devices.
The modified and predicate Capiox RX Oxygenator utilize a porous fiber technology to facilitate the transfer of gases between a blood-phase environment and a gas-phase environment for the intent of satisfying the gas exchange needs of a patient during cardiopulmonary bypass surgery. A wound fiber bundle offers the porous membrane surface to sufficiently permit the movement of gases through the walls of the hollow fibers via diffusion.
The modified and predicate Capiox RX device have an integrated heat exchanger that is comprised of stainless steel encased in a polycarbonate housing. The stainless steel acts as a heat transfer material that permits heat that is generated from a temperature controlled external water bath to transverse across the walls of the stainless steel to effect the necessary temperature change upon circulating blood.
With respect to the filtration of blood, the modified Capiox RX Reservoir relies upon mechanical entrapment of particulates and emboli within the filter mesh as a means to remove those particulates from the blood.
{3}------------------------------------------------
# TERUMO
#### Design and Materials:
With respect to the design of the oxygenator, the design of the modified Capiox RX oxygenator device is unaffected by the changes being incorporated at this time. The subject of this Special 510(k) is a modification being made to the Hardshell Reservoir.
With respect to the design of the Hardshell Reservoir component remains identical to the design of the original reservoir that was cleared by FDA with (K062381) - except that a positive pressure relief valve will be included on the lid of the reservoir. The intent of the relief valve is to eliminate excessive pressure that could accumulate in a reservoir during bypass procedures.
The materials that are used in the construction of the Capiox RX Hollow Fiber Oxygenator may include, but are not limited to, nylon, polycarbonate, stainless steel, polyvinyl chloride, polyurethane, polyester, polypropylene, polyethylene and X-Coating™.
Terumo Cardiovascular Systems concludes that the differences between the modified device and the predicate device do not affect the intended use of the device nor do they affect safety and effectiveness of the device when used as labeled.
#### Performance Evaluations:
Clinical studies involving patients are not necessary to demonstrate substantial equivalence of the subject device to the predicate device. Terumo Cardiovascular Systems conducted the following in-vitro performance evaluations to demonstrate the functional equivalence of the subject device to the predicate device.
Substantial equivalence is demonstrated with the following in-vitro performance evaluations:
- Assessment of Reservoir Pressure during Simulated Bypass Procedures .
- Positive and Negative Pressure Testing of the Reservoir .
- Pressure Relief Valve performance following application of vacuum to the reservoir .
- Pressure Relief Valve-to-Reservoir Interface Testing .
- Usability Testing .
- . Sterilization Assessment
- Shock Drop and Vibration Testing .
- Artificial Conditioning to Shelf-Life of the product .
{4}------------------------------------------------
#### Substantial Equivalence Comparison:
In demonstrating substantial equivalence of the modified CAPIOX® RX Hollow Fiber Oxygenator with/without Hardshell Reservoir to the predicate CAPIOX® RX Hollow Fiber Oxygenator with/without Hardshell Reservoir, a comparative study and/or assessment was performed in each of the following areas:
- Intended use .
- Target Population .
- Duration of use .
- . Product labeling
- Product design .
- Materials .
- Principles of Operation and Technology .
- Device Performance #
#### Substantial Equivalence Statement:
The modified CAPIOX® RX Hollow Fiber Oxygenator with/without Hardshell Reservoir is substantially equivalent in intended use, target population of use, labeling, design, materials, principles of operation and technology, and performance to the predicate CAPIOX® RX Hollow Fiber Oxygenator with/without Hardshell Reservoir. Any noted differences between the subject device and the predicate devices do not raise new issues of safety and effectiveness.
#### Conclusion:
Based upon the comparative studies and analyses, Terumo Cardiovascular Systems concludes that the modified CAPIOX® RX Hollow Fiber Oxygenator with/without Hardshell Reservoir is substantially equivalent to the predicate modified CAPIOX® RX Hollow Fiber Oxygenator with/without Hardshell Reservoir. It is further concluded that any recognized differences noted during the assessments do not raise new issues of patient/user safety or product effectiveness.
{5}------------------------------------------------
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
March 13, 2013
Terumo Cardiovascular Systems Corporation c/o Suzanne Grenier 125 Blue Ball Road Elkton, MD 21921
Re: K130333
Trade/Device Name: CAPIOX RX Hollow Fiber Oxygenators with/without Hardshell Reservoirs Regulation Number: 21 CFR 870.4350 Regulation Name: Cardiopulmonary Bypass Oxygenator Regulatory Class: Class II Product Code: DTZ Dated: February 8, 2013 Received: February 14, 2013
Dear Ms. Grenier:
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 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 (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set
{6}------------------------------------------------
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/Industrv/default.htm.
Sincerely yours.
Matthew G. Hillebrenner
for
Bram D. Zuckerman, M.D. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{7}------------------------------------------------
Image /page/7/Picture/0 description: The image shows the logo for Terumo. The logo consists of a circle with the letter 'T' inside, followed by the word 'TERUMO' in bold, sans-serif font. There is a small degree symbol after the word 'TERUMO'.
#### SECTION 4 - Indications for Use Modified Capiox RX Oxygenators/Reservoirs
#### K130333
#### 510(k) Number (if known): Unknown at time of Submission
#### CAPIOX® RX Hollow Fiber Oxygenator with/without Hardshell Device Name: Reservoir
#### Indications For Use:
Indications for Use as presented in the Instructions for Use:
The CAPIOX RX is intended to be used during open heart surgical procedures requiring cardiopulmonary bypass for periods up to 6 hours.
The CAPIOX RX25 is used with patients when required blood flow rate will not exceed 7 L/min. The CAPIOX RX15 is for use with patients when required blood flow rate will not exceed 5 L/min (4L/min if using product codes CX*RX15RW30 or CX*RX15RE30). The CAPIOX RX Hardshell Reservoir is also intended for use in vacuum assisted venous drainage procedure, in post-operative chest drainage and autotransfusion procedures to aseptically return the blood to the patient for blood volume replacement,
Indications for Use as described in the 510(k):
The CAPIOX® RX Hollow Fiber Oxygenators with/without Hardshell Reservoir are intended to be used to exchange gases between blood and a gaseous environment to satisfy the gas exchange needs of a patient during cardiopulmonary bypass surgery.
The integral heat exchanger is used to warm or cool blood and/or perfusion fluid as it flows through the device.
The (detachable) hardshell reservoir(s) is (are) used to store blood during extra-corporeal circulation from both venous line and the cardiotomy line (via gravity or vacuum assisted venous drainage procedures). The reservoir contains a venous section that is comprised of a filter and defoamer to facilitate air bubble removal. The cardiotomy section of the reservoir contains a filter to remove particulate matter and a defoamer to facilitate air bubble removal. The reservoir may also be used for Post Operative Chest Drainage Procedures.
The CAPIOX® RX Oxygenators with/without Hardshell Reservoirs can be used in procedures lasting up to 6 hours.
The CAPIOX® RX15 is for use with patients when the required blood flow rate will not exceed 5.0 L/min when used with a 4 Liter Reservoir; and when the required blood flow rate will not exceed 4.0 L/min when used with a 3 Liter Reservoir).
The CAPIOX® RX25 is for use with patients when the required blood flow rate will not exceed 7.0 L/min.
OR
| Prescription Use | XX |
|-----------------------------|----|
| (Part 21 CFR 801 Subpart D) | |
Over-The-Counter Use (Part 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)
## Matthew G. Hillebrenner
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
Learn the FDA Browser
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.