The CDI System 500 provides continuous, on-line monitoring of the extracorporeal partial pressure of oxygen and carbon dioxide, pH, potassium, oxygen saturation, hematocrit, hemoglobin and temperature. In addition, calculated values of base excess, bicarbonate, oxygen saturation, and oxygen consumption may also be provided. These parameters are displayed at either actual temperature or adjusted to 37°C. For documentation purposes, the system 500's integral printer provides a hard copy of displayed parameters.
Device Story
CDI System 500 is an AC-powered, microprocessor-based monitor for extracorporeal circuits. It utilizes electro-optics modules (BPM and H/S probe), fluorescence chemistry, and optical reflectance technology to measure blood parameters in real-time. Input signals from sensors inserted into the extracorporeal circuit are processed by the monitor and displayed on a graphical LCD. The system includes an integral printer for documentation. Used in clinical settings (e.g., OR) by healthcare professionals to monitor patient status during cardiopulmonary bypass. Output data assists clinicians in managing patient blood chemistry and oxygenation, potentially improving clinical decision-making and patient outcomes during bypass procedures.
Clinical Evidence
Bench testing only. System verification testing was conducted in a blood loop to simulate clinical use, alongside software verification and validation testing.
Technological Characteristics
Microprocessor-based monitor; electro-optics modules (BPM and H/S probe); fluorescence chemistry and optical reflectance sensing; graphical LCD display; integral printer; AC-powered with battery backup; epoxy-encapsulated BPM cable heads.
Indications for Use
Indicated for patients undergoing cardiopulmonary bypass requiring continuous, on-line monitoring of blood gas, electrolyte, and hematological parameters (pH, pO2, pCO2, K+, SO2, Hct, Hgb, temperature).
Regulatory Classification
Identification
A cardiopulmonary bypass on-line blood gas monitor is a device used in conjunction with a blood gas sensor to measure the level of gases in the blood.
Predicate Devices
CDI Blood Parameter Monitoring System 500 (K123039)
CDI Blood Parameter Monitoring System 500 (K972962)
Submission Summary (Full Text)
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### Section 4: 510(k) Summary
### JUL 2 5 2014
K133658
This section includes a summary of 510(k) safety and effectiveness information in accordance with the requirements of 21 CFR 807.92.
.
| Submitter Information | |
|---------------------------------------------------------------|-------------------------------------------------------------------|
| Name | Terumo Cardiovascular Systems Corporation |
| Address | 6200 Jackson Road<br>Ann Arbor MI, 48103 |
| Name of Contact Person | John Chesney |
| Phone number | Tel: (734) 741-6410 |
| Fax number | Fax: (734) 741-6069 |
| E-mail | john.chesney@terumomedical.com |
| Establishment Registration # | 1828100 |
| Date prepared | July 22, 2014 |
| Name of Device | |
| Trade or proprietary name | CDI™ Blood Parameter Monitoring System 500 |
| Common or usual name | Extracorporeal blood gas monitor |
| Classification name | Monitor, Blood-gas, On-line, Cardiopulmonary Bypass |
| Classification panel | 74 Cardiovascular |
| Regulation | 21 CFR §870.4330 |
| Product Code(s) | DRY |
| Legally marketed device(s) to<br>which equivalence is claimed | CDI Blood Parameter Monitoring System 500,<br>K123039 and K972962 |
| Reason for 510(k) | Modifications to previously cleared system |
Image /page/0/Picture/7 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 circle above and to the right of the letter O.
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### Section 4: 510(k) Summary
### Device Information
Indication for Use: The CDI System 500 provides continuous, on-line monitoring of the extracorporeal partial pressure of oxygen and carbon dioxide, pH, potassium, oxygen saturation, hematocrit, hemoglobin and temperature. In addition, calculated values of base excess, bicarbonate, oxygen saturation, and oxygen consumption may also be provided. These parameters are displayed at either actual temperature or adjusted to 37°C. For documentation purposes, the system 500's integral printer provides a hard copy of displayed parameters.
Device Description: The CDI™ System 500 is an AC-powered (battery back-up) microprocessor-based device used with the following components/accessories:
- CDI™ 500 Monitor .
- Arterial and/or Venous Blood Parameter Modules (BPM) .
- CDI™ H/S Probe .
- CDI™ 540 Gas Calibrator and Calibration Gases (A and B) .
- CDI™ 510H Shunt Sensor .
- Shunt Bypass Line .
- CDI™ H/S Cuvette with or without extension tubing .
- Monitor Mounting Hardware (Pole Clamp and Cable Head Bracket) .
- . Printer Paper
The CDI™ System 500 measures blood parameters in real time by utilizing a microprocessor based monitor, electro-optics modules (i.e., BPM and H/S probe), fluorescence chemistry technology, and optical reflectance technology. The electrooptics modules connect the monitor to the disposables (i.e., shunt sensor or cuvette) which are inserted into the extracorporeal circuit. Light is emitted from the modules, and the optical responses from the blood via the sensor(s) are measured by the monitor. The blood parameters are measured or calculated by the CDI™ 500 Monitor in real time, and displayed to the user via a graphical LCD display.
Image /page/1/Picture/16 description: The image shows the Terumo company logo. The logo consists of a circle with the letter T inside of it, followed by the word "TERUMO" in all capital letters. The logo is black and white and appears to be a high-resolution image.
Section 4 - Page 2 of 7
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### Section 4: 510(k) Summary
Image /page/2/Picture/3 description: This image is a device illustration. The illustration includes a monitor, calibrator, blood parameter module (BPM), cable heads, microsensors, a disposable shunt sensor, a shunt/vent/purge line, an H/S probe, a disposable H/S cuvette, and an optical window. The illustration shows how these components are connected and arranged.
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Section 4 - Page 3 of 7
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umo Cardiovascular Systems Corpora
## ction 4: 510(k) Summ
### ibstantial Equivaler
modife OD™ Systemials en the between to the classes of Present of Krasen som serzegas and Krasas and Krasas and Krasas and Krasas and Krasas enal produktion and manual manuma functions or operating principle
| Item | Proposed Device<br>Modified CDI™ Blood Parameter<br>Monitoring System 500 | Predicate Device K123039<br>CDI™ Blood Parameter Monitoring<br>System 500 | Predicate Device K972962<br>CDI™ Blood Parameter Monitoring<br>System 500 |
|-----------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Indication for Use | The CDI System 500 provides<br>continuous, on-line monitoring of the<br>extracorporeal partial pressure of<br>oxygen and carbon dioxide, pH,<br>potassium, oxygen saturation,<br>hematocrit, hemoglobin and<br>temperature. In addition, calculated<br>values of base excess, bicarbonate,<br>oxygen saturation, and oxygen<br>consumption may also be provided.<br>These parameters are displayed at<br>either actual temperature or adjusted<br>to 37°C. For documentation<br>purposes, the system 500's integral<br>printer provides a hard copy of<br>displayed parameters. | The CDI System 500 provides<br>continuous, on-line monitoring of the<br>extracorporeal partial pressure of<br>oxygen and carbon dioxide, pH,<br>potassium, oxygen saturation,<br>hematocrit, hemoglobin and<br>temperature. In addition, calculated<br>values of base excess, bicarbonate,<br>oxygen saturation, and oxygen<br>consumption may also be provided.<br>These parameters are displayed at<br>either actual temperature or adjusted<br>to 37°C. For documentation<br>purposes, the system 500's integral<br>printer provides a hard copy of<br>displayed parameters. | The CDI System 500 provides<br>continuous, on-line monitoring of the<br>extracorporeal partial pressure of<br>oxygen and carbon dioxide, pH,<br>potassium, oxygen saturation,<br>hematocrit, hemoglobin and<br>temperature. In addition, calculated<br>values of base excess, bicarbonate,<br>oxygen saturation, and oxygen<br>consumption may also be provided.<br>These parameters are displayed at<br>either actual temperature or adjusted<br>to 37°C. For documentation<br>purposes, the system 500's integral<br>printer provides a hard copy of<br>displayed parameters. |
| Item | Proposed Device<br>Modified CDI™ Blood Parameter<br>Monitoring System 500 | Predicate Device K123039<br>CDI™ Blood Parameter Monitoring<br>System 500 | Predicate Device K972962<br>CDI™ Blood Parameter Monitoring<br>System 500 |
| Blood<br>Parameters<br>Monitored<br>(measured or<br>calculated) | Arterial and/or Venous:<br>pH<br>pCO2 (partial pressure of carbon<br>dioxide)<br>pO2 (partial pressure of oxygen)<br>K+ (potassium)<br>SO2 (oxygen saturation)<br>Hct (hematocrit)<br>Hgb (hemoglobin)<br>Temperature<br>BE (base excess)<br>HCO3 (bicarbonate)<br>VO2 (oxygen consumption)<br>Blood flow rate (Q) | Arterial and/or Venous:<br>pH<br>pCO2 (partial pressure of carbon<br>dioxide)<br>pO2 (partial pressure of oxygen)<br>K+ (potassium)<br>SO2 (oxygen saturation)<br>Hct (hematocrit)<br>Hgb (hemoglobin)<br>Temperature<br>BE (base excess)<br>HCO3 (bicarbonate)<br>VO2 (oxygen consumption)<br>Blood flow rate (Q) | Arterial and/or Venous:<br>pH<br>pCO2 (partial pressure of carbon<br>dioxide)<br>pO2 (partial pressure of oxygen)<br>K+ (potassium)<br>SO2 (oxygen saturation)<br>Hct (hematocrit)<br>Hgb (hemoglobin)<br>Temperature<br>BE (base excess)<br>HCO3 (bicarbonate)<br>VO2 (oxygen consumption)<br>Blood flow rate (Q) |
| System<br>Components | CDI500 Monitor with integral printer<br>Blood Parameter Module (BPM)<br>Probe - optionally one or two for<br>arterial and/or venous use<br>• Optional H/S Probe for venous use<br>• CDI540 Gas calibrator<br>• Gas A / Gas B canisters<br>• Mounting hardware<br>• Printer paper | • Monitor/control unit with integral<br>printer<br>• Blood parameter module (BPM)<br>probe - optionally one of two for<br>arterial and/or venous use<br>• H/S probe<br>• Gas Calibrator<br>• Gas A / Gas B canisters<br>• Disposable accessories (see<br>below) | • Monitor/control unit with integral<br>printer<br>• Blood parameter module (BPM)<br>probe - optionally one of two for<br>arterial and/or venous use<br>• H/S probe<br>• Gas Calibrator<br>• Gas A / Gas B canisters<br>• Disposable accessories (see<br>below) |
| Item | Proposed Device | Predicate Device K123039 | Predicate Device K972962 |
| | Modified CDI TM Blood Parameter<br>Monitoring System 500 | CDI TM Blood Parameter Monitoring<br>System 500 | CDI TM Blood Parameter Monitoring<br>System 500 |
| | Disposable accessories (see below) | | |
| Disposable<br>Accessories | CDI510H Shunt Sensor (for arterial<br>and venous use) with heparin coating<br>Shunt Bypass Line<br>1/4", 3/8", and 1/2" sizes<br>18" male/female extension line<br>H/S Cuvettes, with or without 6"<br>extension tube | CDI510H Shunt Sensor (for arterial<br>and venous use) with heparin coating<br>Shunt Bypass Line<br>1/4", 3/8", and 1/2" sizes<br>18" male/female extension line<br>H/S Cuvettes, with or without 6"<br>extension tube<br>(cuvettes with heparin coating no<br>longer available)<br>1/4", 3/8", and 1/2" sizes | CDI510H Shunt Sensor (for arterial<br>and venous use) with heparin coating<br>In-line Sensor and In-line Cell,<br>1/4", 3/8", and 1/2" sizes<br>H/S Cuvettes, with or without 6"<br>extension tube, with or without<br>heparin coating<br>1/4", 3/8", and 1/2" sizes |
| Blood<br>Parameter<br>Module Cable-<br>Head (BPM) | Epoxy encapsulation | Epoxy encapsulation | No epoxy encapsulation |
TERUN
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# erumo Cardiovascular Systems Corporation
## Section 4: 510(k) Summary
TTERUMO
Section 4 - Page 5 of 7
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## Section 4: 510(k) Summar
ﻤﻴﺰﻳﺔ ﺍ
{6}------------------------------------------------
### Section 6: 510(k) Summary
### Performance Testing
The following safety and performance testing was conducted to verify/validate the changes to the CDI™ System 500:
- Software verification and validation testing .
- . System verification testing in a blood loop to simulate clinical use
### onclusion
The modified CDI™ System 500 is substantially equivalent to the currently marketed CDI™ System 500 because it has the same intended use and substantially equivalent performance specifications as compared to the predicate device.
Image /page/6/Picture/9 description: The image shows the logo for Terumo Corporation. The logo consists of a stylized letter "T" inside a circle, followed by the company name "TERUMO" in bold, sans-serif font. The logo is black and white.
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### DEPARTMENT OF HEALTH & HUMAN SERVICES
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July 25, 2014
Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center -WO66-G609 Silver Spring, MD 20993-0002
Terumo Cardiovascular Systems Corp. John Chesney 6200 Jackson Rd. Ann Arbor, MI 48103 US
Re: K133658
> Trade/Device Name: CDI Blood Parameter Monitoring System 500 Regulation Number: 21 CFR 870.4330 Regulation Name: Monitor, Blood-Gas, On-Line, Cardiopulmonary Bypass Regulatory Class: Class II Product Code: DRY Dated: June 23, 2014 Received: June 24, 2014
Dear Mr. Chesney:
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.
{8}------------------------------------------------
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 devicerelated adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Small Manufacturers. International and Consumer Assistance at its tollfree number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of 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/ResourcesforYou/Industry/default.htm.
Sincerely yours.
Image /page/8/Picture/6 description: The image shows a logo with the text "KDA" in a stylized font. The text "Ken Skodacek Tor" is written below the logo. The logo appears to be a combination of letters and a geometric shape, possibly a triangle or an abstract design.
Bram D. Zuckerman, M.D. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{9}------------------------------------------------
### DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration
### Indications for Use
Form Approved: OMB No. 0910-0120 Expiration Date: December 31, 2013 See PRA Statement on last page.
510(k) Number (if known)
K133658
Device Name CDI™ Blood Parameter Monitoring System 500
### Indications for Use (Describe)
The CDIT* System 500 provides continuous, on-ine monitoring of the extracorpored partial pressure of oxygen and carbon divxide, pH, potassium, oxygen saturation, hemoglobin and temperature. In addition, calculated values of base excess, bicarbonate, oxygen saturation, and oxygen consumption may also be provided. These parameters are displayed at ether actual temperature or adjusted to 37°C. For documentation purposes, the system 500's interprovides a hard copy of displayed parameters.
Type of Use (Select one or both, as applicable)
2 Prescription Use (Part 21 CFR 801 Subpart D)
[] Over-The-Counter Use (21 CFR 801 Subpart C)
. . . . . . . .
### PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON A SEPARATE PAGE IF NEEDED.
### CONSTITUTION OF THE OR FOR INCLEOR FOR USE ONLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Concurrence of Center for Devices and Radiological Health (CDRH) (Signature)
Image /page/9/Picture/14 description: The image shows a logo with the letters "KDA" stacked on top of each other. Below the logo, the text "Ken Skodacek for Bram Zuckerman" is written in a smaller font size. The logo appears to be a stylized design, possibly representing the initials of the names mentioned in the text.
{10}------------------------------------------------
This section applies only to requirements of the Paperwork Reduction Act of 1995.
### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.*
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff@fda.hhs.gov
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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.
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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.
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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.