The Quantum Micro-Cardioplegia Delivery System is intended for delivery of micro-cardioplegia to the heart during open heart surgery lasting up to six hours in duration. It is intended to be used by an experienced and trained clinician. It is not intended to be used by a patient or other untrained personnel.
Device Story
System assists in arresting beating heart during cardiac surgery via controlled micro-cardioplegia delivery. Components include Quantum Workstation, Micro-Cardioplegia Delivery Module (QMCDM), roller pump, diagnostic/ventilation module, and heat exchanger. QMCDM adds arrest agents/additives to blood carrier solution; roller pump circulates mixture. System interlocks cardioplegia flow with medication delivery rates to ensure precise ratios. Heat exchanger regulates solution temperature via external heater-cooler. Used in hospital OR by perfusionists. Clinician controls system via integrated touchscreen or Quantum Workstation display, monitoring temperature, flow, pressure, and drug concentration. Output enables precise myocardial protection during bypass. Benefits include integrated management of microplegia delivery and improved visibility of bypass parameters.
Clinical Evidence
Bench testing only. Testing included electronic/PCBA tests, IEC 60601-1 electrical safety, IEC 60601-1-2 electromagnetic compatibility, functional/performance testing, software verification, human factors/usability, and environmental/storage/transportation/cleaning validation.
Technological Characteristics
System comprises Quantum Workstation, QMCDM, roller pump, and heat exchanger. QMCDM uses syringe plunger driven by stepper motor with lead screw for medication; roller pump for blood. Integrated touchscreen control. External heater-cooler required for temperature regulation. Disposable syringes and extension lines. Software-controlled infusion parameters.
Indications for Use
Indicated for delivery of micro-cardioplegia (whole blood cardioplegia) to the heart during open-heart surgery in patients of all ages and genders. Intended for use by trained perfusionists in hospital operating rooms. Not for patient or untrained personnel use.
Regulatory Classification
Identification
A cardiopulmonary bypass heat exchanger is a device, consisting of a heat exchange system used in extracorporeal circulation to warm or cool the blood or perfusion fluid flowing through the device.
Perfusor Space Syringe Infusion Pump System (K172831)
Submission Summary (Full Text)
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FDA U.S. FOOD & DRUG ADMINISTRATION
July 8, 2025
Spectrum Medical Ltd.
Asia Lukuc
Regulatory Affairs Manager
Harrier 4, Meteor Business Park, 128 Cheltenham Road East
Gloucester, GL2 9QL
United Kingdom
Re: K240908
Trade/Device Name: Quantum Micro-Cardioplegia Delivery System; Quantum Micro-Cardioplegia Delivery Module (QMCDM)
Regulation Number: 21 CFR 870.4240
Regulation Name: Cardiopulmonary bypass heat exchanger
Regulatory Class: Class II
Product Code: DTR
Dated: April 2, 2025
Received: April 10, 2025
Dear Asia Lukuc:
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 (the 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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database available at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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.
U.S. Food & Drug Administration
10903 New Hampshire Avenue
Silver Spring, MD 20993
www.fda.gov
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K240908 - Asia Lukuc
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Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device" (https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).
Your device is also subject to, among other requirements, the Quality System (QS) regulation (21 CFR Part 820), which includes, but is not limited to, 21 CFR 820.30, Design controls; 21 CFR 820.90, Nonconforming product; and 21 CFR 820.100, Corrective and preventive action. Please note that regardless of whether a change requires premarket review, the QS regulation requires device manufacturers to review and approve changes to device design and production (21 CFR 820.30 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).
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 Part 803) for devices or postmarketing safety reporting (21 CFR Part 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reporting-combination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.
All medical devices, including Class I and unclassified devices and combination product device constituent parts are required to be in compliance with the final Unique Device Identification System rule ("UDI Rule"). The UDI Rule requires, among other things, that a device bear a unique device identifier (UDI) on its label and package (21 CFR 801.20(a)) unless an exception or alternative applies (21 CFR 801.20(b)) and that the dates on the device label be formatted in accordance with 21 CFR 801.18. The UDI Rule (21 CFR 830.300(a) and 830.320(b)) also requires that certain information be submitted to the Global Unique Device Identification Database (GUDID) (21 CFR Part 830 Subpart E). For additional information on these requirements, please see the UDI System webpage at https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance/unique-device-identification-system-udi-system.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-devices/medical-device-safety/medical-device-reporting-mdr-how-report-medical-device-problems.
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-
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K240908 - Asia Lukuc
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assistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
Rachel E. Neubrander -S
for Nicole Gillette
Assistant Director
DHT2B: Division of Circulatory Support, Structural, and Vascular Devices
OHT2: Office of Cardiovascular Devices
Office of Product Evaluation and Quality
Center for Devices and Radiological Health
Enclosure
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DEPARTMENT OF HEALTH AND HUMAN SERVICES
Food and Drug Administration
Indications for Use
Form Approved: OMB No. 0910-0120
Expiration Date: 07/31/2026
See PRA Statement below.
Submission Number (if known)
K240908
Device Name
Quantum Micro-Cardioplegia Delivery System;
Quantum Micro-Cardioplegia Delivery Module (QMCDM)
Indications for Use (Describe)
The Quantum Micro-Cardioplegia Delivery System is intended for delivery of micro-cardioplegia to the heart during open heart surgery lasting up to six hours in duration. It is intended to be used by an experienced and trained clinician. It is not intended to be used by a patient or other untrained personnel.
Type of Use (Select one or both, as applicable)
☑ Prescription Use (Part 21 CFR 801 Subpart D)
☐ Over-The-Counter Use (21 CFR 801 Subpart C)
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K240908 510(k) Summary Prepared on: 2024-04-02
Contact Details 21 CFR 807.92(a)(1)
| Applicant Name | Spectrum Medical Ltd. |
| --- | --- |
| Applicant Address | Harrier 4, Meteor Business Park, 128 Cheltenham Road East Gloucester GL2 9QL United Kingdom |
| Applicant Contact Telephone | +44 1242 386603 |
| Applicant Contact | Ms. Asia Lukuc |
| Applicant Contact Email | asia.lukuc@spectrummedical.com |
Device Name 21 CFR 807.92(a)(2)
| Device Trade Name | Quantum Micro-Cardioplegia Delivery System; Quantum Micro-Cardioplegia Delivery Module (QMCDM) |
| --- | --- |
| Common Name | Cardiopulmonary bypass heat exchanger |
| Classification Name | Heat-Exchanger, Cardiopulmonary Bypass |
| Regulation Number | 870.4240 |
| Product Code(s) | DTR |
Legally Marketed Predicate Devices 21 CFR 807.92(a)(3)
| Predicate # | Predicate Trade Name (Primary Predicate is listed first) | Product Code |
| --- | --- | --- |
| K201984 | MPS3 ND Myocardial Protection System | DTR |
| K172831 | Perfusor Space Syringe Infusion Pump System | FRN |
Device Description Summary 21 CFR 807.92(a)(4)
The Quantum Micro-Cardioplegia Delivery System is intended to assist in arresting a beating heart during cardiac surgery through controlled delivery of cardioplegia. The system consists of the Quantum Workstation, Quantum Micro-Cardioplegia Delivery Module, Quantum Roller Pump 4", Quantum Diagnostic/Venilation Module, and Quantum Pureflow Cardioplegia Heat Exchanger. The Quantum Micro-Cardioplegia Delivery Module was developed to supplement the existing Quantum technology and to allow users a more integrated way of managing microplegia delivery during cardiopulmonary bypass.
The Quantum Micro-Cardioplegia Delivery System is intended specifically for procedures where microplegia (i.e., whole blood cardioplegia) strategy is used. The Quantum Micro-Cardioplegia Delivery Module adds cardioplegia drugs (i.e., arrest agent and additive) to the main carrier solution (blood) which is circulated by a Quantum Roller Pump. The two devices, working in unison and controlled by the Quantum Workstation, deliver cardioplegia to the patient's heart.
The premise of the Quantum Micro-Cardioplegia Delivery System is to interlock forward cardioplegia flow with medication delivery rates, ensuring delivery of arrest agent at a given ratio to the blood. The system includes a separate, dedicated heat exchanger, which is intended to be fitted in the cardioplegia blood line to allow for temperature regulation of the cardioplegia solution. The heat exchanger can be connected to any available heater cooler device which will manage the temperature regulation.
Intended Use/Indications for Use 21 CFR 807.92(a)(5)
The Quantum Micro-Cardioplegia Delivery System is intended for delivery of micro-cardioplegia to the heart during open heart surgery
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lasting up to six hours in duration. It is intended to be used by an experienced and trained clinician. It is not intended to be used by a patient or other untrained personnel.
## Indications for Use Comparison
**21 CFR 807.92(a)(5)**
The primary predicate and proposed devices have substantially equivalent indications for use. Both devices are intended to deliver microplegia (a type of cardioplegia also referred to as minicardioplegia or whole blood cardioplegia) to the heart during open-heart surgery. The difference between the indications for use of the predicate and the subject device is that the MPS 3 ND (predicate) also includes delivery of cardioplegia when strategies other than microplegia are used (i.e., ratio cardioplegia or all crystalloid cardioplegia). Both the primary predicate and proposed devices are used in a hospital operating room by a perfusionist on patients of all ages and genders.
The reference device has much broader indications for use (delivery of fluid and blood) than the proposed device.
## Technological Comparison
**21 CFR 807.92(a)(6)**
Both the primary predicate and proposed devices have independent control of the arrest agent and additive. In both devices, the delivery of arrest agent and additive is interlocked with the blood flow in the cardioplegia line. The infusion mechanism (operating principle), however, is different between the primary predicate and the proposed device. The Quest MPS3 ND uses a single piston pump driven by a stepper motor for arrest agent/additive delivery and a double piston pump for blood delivery. The Quantum Micro-Cardioplegia Delivery Module uses a syringe plunger driven by a stepper motor with a lead screw for arrest agent/additive delivery, and a roller pump for blood (mixed with cardioplegia drugs) delivery. The linear pump used in the Quantum Micro-Cardioplegia Module is equivalent to the reference device (Perfusor Syringe Infusion Pump by B. Braun Medical).
Additionally, while the primary predicate (MPS3 ND) delivers cardioplegic agents from a pouch type container, the reference device (Perfusor), like the Quantum Micro-Cardioplegia Delivery Module, uses a syringe to hold the medication/agent.
Both the primary predicate and proposed device monitor the following parameters: drug concentrations (set parameters), flow rates, pressures, and temperature. Both the MPS 3 ND predicate device and the Quantum Micro-Cardioplegia Delivery System rely on external heater-cooler units to regulate the temperature of the solution that is being delivered to the patient. Both devices use external heat exchangers.
The units of delivery of arrest agent and additive are the same between the primary predicate and proposed device. The concentration range of arrest agent in the primary predicate is 0-40 mEq/L whereas in the proposed device it is 0-25 mEq/L.
Both the primary predicate and proposed devices use an integrated touchscreen to control the device functions, whereas the proposed Quantum Micro-Cardioplegia Delivery System can also display information on the much larger screen on the Quantum Workstation to make it easier to see while controlling other parameters of the cardiopulmonary bypass. Information such as temperature, flow, pressure, drug concentration, and delivery route are displayed to the user. Both devices can deliver the same concentration range of arrest agent and additive with the same infusion accuracy.
The primary predicate and proposed device use a variety of accessories. The primary predicate includes disposable cardioplegia delivery sets and extension lines and uses a disposable water circuit with dripless connectors. Similarly, the syringes and extension lines compatible for use with the Quantum Micro-Cardioplegia Delivery System are disposable.
Results from the testing conducted on the subject device demonstrate that the differences in technological characteristics between the subject device and the predicate device do not raise different questions of safety and effectiveness. Thus the Quantum Micro-Cardioplegia Delivery System is substantially equivalent to the predicate device (MPS 3 ND).
## Non-Clinical and/or Clinical Tests Summary & Conclusions
**21 CFR 807.92(b)**
A suite of nonclinical tests was performed for the Quantum Micro-Cardioplegia System to support a determination of substantial equivalence to the predicate device.
The bench and nonclinical tests included:
- Electronic/PCBA Tests
- IEC 60601-1 Electrical Safety Tests
- IEC 60601-1-2 Electromagnetic Compatibility Tests
- Functional/Performance Tests
- Software Verification Tests
- Human Factors/Usability Test
- Environmental/Storage, Transportation, and Cleaning Tests
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.