K200670 · Mar Cor Purification, Inc. · FIP · Apr 16, 2020 · Gastroenterology, Urology
Device Facts
Record ID
K200670
Device Name
EON Portable RO Water Purification System
Applicant
Mar Cor Purification, Inc.
Product Code
FIP · Gastroenterology, Urology
Decision Date
Apr 16, 2020
Decision
SESE
Submission Type
Special
Regulation
21 CFR 876.5665
Device Class
Class 2
Indications for Use
The EON Portable Reverse Osmosis Water Purification System is intended to be used as a dialysis accessory to produce water through reverse osmosis for use with hemodialysis equipment. EON can be connected to hemodialysis equipment used in hospitals, clinics and in home environments, in conjunction with the appropriate pre and post treatment units, as part of a water treatment system designed to meet current AAMI and Federal (U.S.) standards. EON has optional heat disinfection cycles intended to disinfect the reverse osmosis (RO) machine and product loop, and connection tubing to the hemodialysis machine. EON's heat disinfect the connection tubing (heat forward cycle) is intended to be used only with hemodialysis machines which contain their own heat disinfection cycles and hence are able to tolerate high temperatures. EON is not intended to heat disinfect the hemodialysis machine.
Device Story
Portable reverse osmosis (RO) water purification system; removes contaminants from feed water to produce water for hemodialysis. Input: feed water; process: pump applies high hydrostatic pressure forcing water through RO membrane; output: purified water meeting AAMI standards. Used in hospitals, clinics, and home environments; operated by healthcare providers or patients. Features touch-screen interface, programmable logic controller (OPLC), water quality monitoring, and audible/visual alarms. Includes optional heat disinfection and chemical sanitization cycles for RO machine and product loop; 'Heat Forward' cycle disinfects connection tubing to hemodialysis machines capable of high-temperature tolerance. Automatic divert-to-drain mode activates if product water TDS exceeds quality set-point. Benefits: provides purified water for dialysis while maintaining low microbiological levels in flow pathways.
Clinical Evidence
Bench testing only. Performance data includes system and RO membrane flow verification, product water quality verification across operating conditions, and software verification.
Technological Characteristics
Portable RO system; RO membrane; system pump; water quality monitoring; OPLC; touch-screen interface; heat disinfection and chemical sanitization capability; audible/visual alarms. Connectivity: standalone system with connection tubing to hemodialysis machines. Materials: WRO 300H membrane. Standards: AAMI water quality requirements.
Indications for Use
Indicated for use as a dialysis accessory to produce reverse osmosis water for hemodialysis equipment in hospitals, clinics, and home environments. Requires use with appropriate pre/post-treatment units to meet AAMI/Federal standards.
Regulatory Classification
Identification
A water purification system for hemodialysis is a device that is intended for use with a hemodialysis system and that is intended to remove organic and inorganic substances and microbial contaminants from water used to dilute dialysate concentrate to form dialysate. This generic type of device may include a water softener, sediment filter, carbon filter, and water distillation system.
Special Controls
*Classification.* Class II (special controls). The device, when it is a water purification subsystem disinfectant, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 876.9.
Predicate Devices
EON Portable Reverse Osmosis Water Purification System (K171099)
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Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which is a blue square with the letters "FDA" in white. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.
April 16, 2020
Mar Cor Purification, Inc. Mark Arnold Regulatory Affairs Manager 14550 28th Avenue North Minneapolis, MN 55447
Re: K200670
> Trade/Device Name: EON Portable Reverse Osmosis Water Purification System Regulation Number: 21 CFR 876.5665 Regulation Name: Water purification system for hemodialysis Regulatory Class: II Product Code: FIP Dated: March 9, 2020 Received: March 17, 2020
Dear Mark Arnold:
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. 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 located 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.
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
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requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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 https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/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-device-advice-comprehensive-regulatoryassistance/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,
Carolyn Y. Neuland, Ph.D. Assistant Director DHT3A: Division of Renal, Gastrointestinal, Obesity and Transplant Devices OHT3: Office of GastroRenal, ObGyn, General Hospital and Urology Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known)
#### K200670
Device Name
EON Portable Reverse Osmosis Water Purification System
#### Indications for Use (Describe)
The EON Portable Reverse Osmosis Water Purification System is intended to be used as a dialysis accessory to produce water through reverse osmosis for use with hemodialysis equipment. EON can be connected to hemodialysis equipment used in hospitals, clinics and in home environments, in conjunction with the appropriate pre and post treatment units, as part of a water treatment system designed to meet current AAMI and Federal (U.S.) standards.
EON has optional heat disinfection cycles intended to disinfect the reverse osmosis (RO) machine and product loop, and connection tubing to the hemodialysis machine. EON's heat disinfect the connection tubing (heat forward cycle) is intended to be used only with hemodialysis machines which contain their own heat disinfection cycles and hence are able to tolerate high temperatures. EON is not intended to heat disinfect the hemodialysis machine.
Type of Use (Select one or both, as applicable)
| <div> <span> <b> X</b> Prescription Use (Part 21 CFR 801 Subpart D) </span> </div> |
|---------------------------------------------------------------------------------------------------------------|
| <div> <span> ☐ Over-The-Counter Use (21 CFR 801 Subpart C) </span> </div> |
#### CONTINUE ON A SEPARATE PAGE IF NEEDED.
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Image /page/3/Picture/0 description: The image shows the logo for MARCOR, a Cantel Medical Company. The logo consists of a blue circle with several horizontal lines running through it on the left. To the right of the circle is the text "MAR COR" in a larger, bolder blue font, with the text "A Cantel Medical Company" in a smaller blue font underneath.
March 9, 2020
### EON
# Portable Reverse Osmosis Water Purification System
Section 07 - 510(k) Summary
- Manufacturer: Mar Cor Purification, Inc.
- 14550 28th Avenue North Address: Minneapolis, MN 55447 844-348-5636
- Official Contact: Mark Arnold Regulatory Affairs Manager, Mar Cor Purification, Inc.
| Trade Name: | EON Portable Reverse Osmosis Water Purification System |
|----------------------|--------------------------------------------------------|
| Common Name: | Water Purification System |
| Classification Name: | Water Purification System for Hemodialysis |
| Product Code: | FIP |
| Device Class: | II |
| Regulation No: | 21 CFR 876.5665 |
Mar Cor Purification has supplied the following information to the US Food and Drug Administration to support substantial equivalence of the EON Portable Reverse Osmosis Water Purification System to its predicates - EON Portable Reverse Osmosis Water Purification System, 510(k) K171099 and WRO 300H, 510(k) K093608 - both currently cleared for sale in the U.S.
# 1. Device Description
The device is a portable water purification system which uses reverse osmosis to remove contaminants from water that is used to dilute dialysis concentrate to form dialysate for use in hemodialysis equipment. Feed water enters the unit and is directed through a pump into a RO membrane. The pump applies a high hydrostatic pressure that forces water from the concentrated (feed) side to the dilute (product) side of the RO membrane. As water flows across the membrane purified water is produced. Both subject and predicate devices are designed to maintain low microbiological levels in the flow pathway by using optional cycles which perform heat disinfection on the entire RO machine and loop. The subject device also has an optional Heat Forward cycle which is intended to heat disinfect the connection tubing to the hemodialysis machine.
CONFIDENTIAL
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Image /page/4/Picture/1 description: The image shows the logo for MARCOR, a Cantel Medical Company. The logo consists of a blue circle with white lines inside, followed by the text "MAR COR" in blue, and then the text "A Cantel Medical Company" in a smaller blue font. The logo is simple and professional, and the use of blue gives it a clean and modern look.
The EON is capable of generating purified water that meets AAMI water quality requirements for hemodialysis. It must be used with appropriate pre and post treatment units, including at a minimum carbon adsorption media pretreatment in order to remove chlorine/chloramines. Additional pre and post treatment requirements may vary and are dependent on the quality of the local feed water supply and individual facility requirements.
The EON system is designed to maintain low microbiological levels in the flow pathway through regular heat disinfection and chemical sanitization. Notable components and features of the EON include:
- RO membrane .
- System pump .
- Water quality monitoring system .
- Operating panel and programmable logic controller (OPLC) .
- Heat disinfection and chemical sanitization capability .
- Audible and visual alarms .
- Automatic divert to drain mode upon start-up and anytime product water . TDS is above the quality set-point
- System control via a touch-screen user interface .
- Heat forward cycle intended to heat disinfect connection tubing from the . Portable Reverse Osmosis Water Purification System to the hemodialysis machine.
# 2. Intended Use
The EON Portable Reverse Osmosis Water Purification System is intended to be used as a dialysis accessory to produce water through reverse osmosis for use with hemodialysis equipment. EON can be connected to hemodialysis equipment used in hospitals, clinics and in home environments, in conjunction with the appropriate pre and post treatment units, as part of a water treatment system designed to meet current AAMI and Federal (U.S.) standards.
EON has optional heat disinfection cycles intended to disinfect the reverse osmosis (RO) machine and product loop, and connection tubing to the hemodialysis machine. EON's heat disinfection cycle to disinfect the connection tubing (heat forward cycle) is intended to be used only with hemodialysis machines which contain their own heat disinfection cycles and hence are able to tolerate high temperatures. EON is not intended to heat disinfect the hemodialysis machine.
CONFIDENTIAL
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Image /page/5/Picture/1 description: The image shows the logo for MARCOR, a Cantel Medical Company. The logo consists of a blue circle with white lines inside, followed by the text "MAR COR" in blue, with the text "A Cantel Medical Company" in a smaller font size below it. The logo is simple and clean, with a focus on the company name.
# 3. Comparison to Other Devices in Commercial Distribution Within the United States
The EON is equivalent in intended use, functions and fundamental technology to its predicate devices, the Cantel EON Portable Reverse Osmosis Water Purification System (K171099) and Mar Cor (formerly Gambro) WRO 300H (K093608). All three products are portable reverse osmosis water purification systems with the same intended use and equivalent indications for use.
## Similarities between Subject and Predicate Devices
EON is equivalent in function, intended use, scientific technology, principle of operation, performance characteristics and components its predicates. Both the subject and predicate devices utilize chemical sanitization and heat disinfection of the RO loop and machine.
### Differences between Subject and Predicate Devices
The subject device is identical in build to the EON Portable Reverse Osmosis Water Purification System (K171099), except it uses the membrane from the WRO 300H (K093608), and has several minor component changes to adjust for dimensional fit.
## 4. Summary of Non-Clinical Performance Data
Mar Cor Purification has conducted the following testing to demonstrate that the use of the WRO 300H membrane in the EON is safe and effective for its intended use:
- System and RO Membrane Performance Flow and product water quality . verification over range of operating conditions
- Software Verification .
## 5. Conclusion
Based on the intended use, fundamental technology and performance data, the subject device is substantially equivalent to and is as safe and as effective as the legally marketed predicate devices.
CONFIDENTIAL
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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.