K113510 · Cook Ireland, Ltd. · MQR · May 17, 2012 · General, Plastic Surgery
Device Facts
Record ID
K113510
Device Name
EVOLUTION COLONIC STENT SYSTEM
Applicant
Cook Ireland, Ltd.
Product Code
MQR · General, Plastic Surgery
Decision Date
May 17, 2012
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 878.3610
Device Class
Class 2
Attributes
Therapeutic, Real-World Evidence
Real-World Evidence
Submission
Device
Sponsor
RWD Sources
RWE Use Summary
Key Tags
K113510 · May 17, 2012
EVOLUTION COLONIC STENT SYSTEM
Cook Ireland, Ltd.
80-patient registry study
The registry study was used to evaluate clinical success, technical success, acute procedural success, implant duration, symptom relief, and adverse events in patients undergoing palliative treatment or bridge-to-surgery procedures.
registry; clinical success; palliation; bridge to surgery
Clinical Evidence
Study Design
Population
Comparator
Key Endpoints
80 patient registry study; Registry study; Follow-up/Duration: Up to 6 months or death
Patients with colonic obstruction or strictures caused by malignant neoplasms; Sample Size: 80
Not applicable for this study
Clinical success, technical success, acute procedural success, implant duration, symptoms at follow-up, and adverse events
Indications for Use
This device is used for palliative treatment of colonic obstruction or colonic strictures caused by malignant neoplasms, and to relieve large bowel obstruction prior to colectomy in patients with malignant strictures.
Device Story
Evolution® Colonic Stent System is a flexible, self-expanding nitinol wire stent; designed for palliative treatment of malignant colonic obstruction/strictures or as a bridge to surgery. Stent features 25mm body diameter, 30mm flange diameters, and lengths of 6cm, 8cm, or 10cm. Mounted on an inner catheter (10 Fr, 230cm working length) with an outer constraint catheter; includes a pistol-grip handle for deployment and recapture. Used under fluoroscopic guidance by physicians. Radiopaque markers on the inner catheter indicate stent length at nominal diameter. Device provides mechanical patency to relieve bowel obstruction; benefits include symptom relief and potential bridge to definitive surgical colectomy.
Clinical Evidence
Clinical data from an 80-patient registry study evaluating palliation of malignant colonic obstruction/strictures and bridge-to-surgery use. Endpoints included technical success, clinical success, acute procedural success, implant duration, and adverse events (perforation, migration, obstruction) through 6 months or death. Results demonstrated acceptable technical and clinical success with symptom relief. No deaths were attributed to device complications; no adverse events were associated with device malfunction.
Technological Characteristics
Nitinol wire self-expanding braided stent; 25mm body diameter, 30mm flange diameters; 6cm, 8cm, 10cm lengths. 10 Fr introducer system with 230cm working length. Pistol-grip handle for deployment/recapture. Radiopaque markers for visualization. Single-use, sterile. Bench testing per ASTM standards and FDA guidance for Esophageal and Tracheal Prostheses (deployment, expansion/compression force, corrosion, tensile strength, MRI). Biocompatibility per ISO 10993-1.
Indications for Use
Indicated for patients with colonic obstruction or strictures caused by malignant neoplasms requiring palliative treatment or as a bridge to surgery prior to colectomy.
Regulatory Classification
Identification
An esophageal prosthesis is a rigid, flexible, or expandable tubular device made of a plastic, metal, or polymeric material that is intended to be implanted to restore the structure and/or function of the esophagus. The metal esophageal prosthesis may be uncovered or covered with a polymeric material. This device may also include a device delivery system.
Special Controls
The special control for this device is FDA's “Guidance for the Content of Premarket Notification Submissions for Esophageal and Tracheal Prostheses.”
Predicate Devices
Boston Scientific Wallstent® Enteral Endoprosthesis with Unistep™ Plus Delivery System (K000281)
Boston Scientific WallFlex™ Enteral Colonic Stent with Anchor Lock Delivery System (K061877)
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MAY 17 2012
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K113510; Cook Ireland Evolution® Colonic Stent System
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·
| | Section 5.0 510(k) Summary |
|----------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Name: | Cook Ireland Ltd |
| Address: | O 'Halloran Road<br>National Technology Park<br>Limerick, Ireland |
| Phone: | 353 61 334440 |
| Fax: | 353 61 239293 |
| Contact Persons: | Jacinta Kilmartin, Regulatory Affairs Specialist<br>Emmett Devereux, Director Quality & Regulatory Affairs |
| Phone: | 353 61 334440 |
| Fax: | 353 61 239 293 |
| Date: | April 25, 2012 |
| Trade Name: | Evolution® Colonic Stent System |
| Common Name: | Stent, colonic, metallic, expandable |
| Classification Name: | Stent, colonic, metallic, expandable<br>(21 CFR 878.3610, Product Code: MQR) |
| Predicate Devices: | Boston Scientific Wallstent® Enteral Endoprosthesis with<br>Unistep™ Plus Delivery System (K000281)<br>Boston Scientific WallFlex™ Enteral Colonic Stent with<br>Anchor Lock Delivery System (K061877)<br>Cook Evolution® Duodenal Stent System (K101530) |
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K113510
pg2064
# Description of the Device:
Stent Description:
This flexible, self-expanding stent is constructed of nitinol wire. The total length of the stent is indicated by radiopaque markers on the inner catheter, indicating the actual length of the stent at nominal stent diameter. The stent has flanges at both stent ends. The stent is provided with a body diameter of 25mm and flange diameters of 30mm and is provided in three lengths 6cm, 8cm and 10cm.
Introducer System Description:
The stent is mounted on an inner catheter, which accepts a 0.035 inch wire guide and is constrained by an outer catheter. A pistol-grip delivery handle allows stent deployment or recapture. The introducer system diameter is 10 Fr and working length is 230cm.
This device is used for palliative treatment of colonic obstruction or colonic strictures caused by malignant neoplasms, and to relieve large bowel obstruction prior to colectomy in patients with malignant strictures. The Evolution® Colonic Stent System is substantially equivalent to the currently marketed predicate devices, the Boston Scientific Wallstent® Enteral Endoprosthesis with Unistep™ Plus Delivery System (K000281), the Boston Scientific WallFlex™ Enteral Colonic Stent with Anchor Lock Delivery System (K061877) and the Cook Evolution® Duodenal Stent System (K101530). The proposed device shares many technological characteristics with at least one of the predicate devices (or fall within the range of the predicates) in terms of the following:
- . Stents:
Dimensions (Diameter & Length), ୍
Materials (i.e. nitinol), o
O Self Expanding Stent,
Indications for use:
Comparison of Characteristics:
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K113510
pg 3 of 4
- o Braided Stent Construction,
- o Number of Expanded Ends.
- Introduction System:
- Materials of construction, o
- Working length dimensions, o
- o Allows stent deployment and recapture.
- o Supplied with a preloaded stent,
- o Allows placement using fluoroscopic techniques,
- Compatibility with an endoscope o
- Intended use .
- All are intended for single use, are supplied sterile and . are not intended to be removed.
Performance (bench and clinical) testing was carried out to determine the equivalence of the Evolution® Colonic Stent System to predicate devices and to verify the safety and effectiveness of the device.
## Performance Testing-Bench:
The bench testing was conducted in accordance with various applicable ASTM standards and in accordance with FDA's Guidance for the Content of Premarket Notifications for Esophageal and Tracheal Prostheses. In the absence of specific colonic stent guidance this guidance was considered relevant to colonic stents. The following bench tests were carried out: deployment testing, expansion force testing, compression force testing, dimensional testing, corrosion testing, tensile strength testing and MRI testing. The bench testing was successfully completed. Results of the testing provide reasonable assurance that the Evolution® Colonic Stent System will function as intended.
### Biocompatibility:
Biocompatibility testing in compliance with ISO 10993-1 and FDA's Guidance for the Content of Premarket Notifications for Esophageal and Tracheal Prostheses supports the safety of the Evolution® Colonic Stent
# Performance Data:
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K113510
pg 4 of 4
System.
# Performance Testing-Clinical:
A 80 patient registry study was conducted to compile clinical data on use of the Evolution® Colonic Stent System for palliation of symptoms due to colonic obstruction or stricture caused by malignant neoplasms, and as a "bridge to surgery" to relieve large bowel obstruction prior to potential colectomy in patients with malignant strictures. Data on clinical success, technical success, acute procedural success, implant duration, symptoms at follow-up, and adverse events were collected. Follow-up occurred to 6 months or death. The data demonstrate acceptable technical success, clinical success, acute procedural success were achieved, and symptom relief. Adverse events included perforation, migration, and obstruction. Importantly, no adverse events were associated with device malfunction and no deaths were considered to be caused by a device complication.
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# DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/4/Picture/1 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo is circular and contains the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. In the center of the logo is an abstract symbol that resembles an eagle or other bird.
#### Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -- WO66-G609 Silver Spring, MD 20993-0002
Ms. Jacinta Kilmartin Regulatory Affairs Speacialist Cook Ireland Ltd. O' Halloran Road, National Technology Park LIMERICK IRELAND
MAY 1 7 2012
Re: K113510
> Trade/Device Name: Evolution® Colonic Stent System Regulation Number: 21 CFR& 878.3610 Regulation Name: Esophageal prosthesis Regulatory Class: II Product Code: MQR Dated: April 25, 2012 Received: April 30, 2012
Dear Ms. Kilmartin:
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
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device-related 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 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/ResourcesforYou/Industry/default.htm.
http://www.fda.gov/MedicalDevices/ResourcestoYou/Industry/default.htm.
Sincerely yours,
Benjamin R. Eick
Benjamin R. Fisher, Ph.D. Director Division of Reproductive, Gastro-Renal, and Urological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Section 4.0 Indications for Use
5510
510(k) Number (if known): __
Device Name: Evolution® Colonic Stent System
Indications for Use:
This device is used for palliative treatment of colonic obstruction or colonic strictures caused by malignant neoplasms, and to relieve large bowel obstruction prior to colectomy in patients with malignant strictures.
Prescription Use V (Part 21 CFR 801 Subpart D)
AND/OR
Over-The-Counter Use _ (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Dorat M. Why
(Division Sign-Off)
Division of Reproductive, Gastro-Renal, and
Urological Devices
510(k) Number K113510
Page 1 of 1
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.