K111584 · Xylos Corporation · FTM · Aug 25, 2011 · General, Plastic Surgery
Device Facts
Record ID
K111584
Device Name
XYLOS MACRO-POROUS SURGICAL MESH
Applicant
Xylos Corporation
Product Code
FTM · General, Plastic Surgery
Decision Date
Aug 25, 2011
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 878.3300
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
Xylos® Macro-Porous Surgical Mesh is intended to be used for implantation to reinforce and protect soft tissue including but not limited to: defects of the abdominal and thoracic wall, muscle flap reinforcement, hernias, suture-line reinforcement and other reconstructive procedures. This mesh may be used for the repair of hernia and other fascial deficiencies that require the addition of a reinforcing or bridging material to obtain the desired surgical result. Xylos® Macro-Porous Surgical Mesh is also intended for the reinforcement of soft tissues repaired by sutures or suture anchors during tendon repair surgery including reinforcement of rotator cuff, patellar, Achilles, biceps, quadriceps or other tendons. Xylos® Macro-Porous Surgical Mesh is not intended to replace normal body structure or provide the full mechanical strength to support tendon repair of the rotator cuff, patellar, Achilles, biceps, quadriceps, or other tendons. Sutures used to repair the tear, and sutures or bone anchors used to attach the tissue to the bone provide biomechanical strength for the tendon repair. Xylos® Macro-Porous Surgical Mesh is indicated for open and endoscopic procedures and is intended for one-time use only.
Device Story
Flexible, non-resorbable surgical mesh; composed of microbial-derived cellulose; macro-porous structure facilitates tissue in-growth. Device is cut to size by surgeon; implanted during open or endoscopic procedures to reinforce soft tissue or tendon repairs. Not subject to degradation by tissue enzymes. Provides mechanical reinforcement for surgical sites; does not replace native tissue or provide full biomechanical strength for tendon repairs. Used in clinical settings by surgeons.
Clinical Evidence
Bench testing only. Mechanical performance testing (tensile strength, burst strength, suture pull-out) demonstrated equivalence to predicate devices. Biocompatibility established per ANSI/AAMI/ISO 10993. Animal study results provided to support physical strength for intended use.
Technological Characteristics
Non-resorbable, thin, conformable surgical mesh. Material: microbial-derived cellulose (biopolymer hydrogel). Macro-porous structure for tissue in-growth. Sterile, single-use, ready-to-use. Biocompatibility per ANSI/AAMI/ISO 10993. No animal or human-derived components.
Indications for Use
Indicated for patients requiring soft tissue reinforcement or protection, including abdominal/thoracic wall defects, hernias, fascial deficiencies, and tendon repairs (rotator cuff, patellar, Achilles, biceps, quadriceps). Not intended to replace body structure or provide full mechanical strength for tendon repairs; biomechanical strength must be provided by sutures/anchors. Indicated for open and endoscopic procedures.
Regulatory Classification
Identification
Surgical mesh is a metallic or polymeric screen intended to be implanted to reinforce soft tissue or bone where weakness exists. Examples of surgical mesh are metallic and polymeric mesh for hernia repair, and acetabular and cement restrictor mesh used during orthopedic surgery.
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Xylos® Corporation
# AUG 2 5 2011
# Section 5: 510(k) Summary
| Sponsor: | Xylos Corporation<br>838 Town Center Drive<br>Langhorne, PA 19047 |
|----------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Contact: | Dr. Gonzalo Serafica<br>838 Town Center Drive<br>Langhorne, PA 19047<br>Phone: 215-867-0220 ext. 612<br>Facsimile: 215-741-4804<br>al.serafica@xyloscorp.com |
| Date submitted: | June 3, 2011 |
| Proprietary Name: | Xylos® Macro-Porous Surgical Mesh |
| Common Name: | Surgical Mesh |
| Regulation Classification: | 878.3300 |
| Classification Status: | Class II |
| Product Codes: | FTM |
| Predicate Device: | Xylos® Securian® Tissue Reinforcement Matrix (K083823)<br>OrthADAPT Bioimplant (K071065), Pegasus<br>Parietex Composite Mesh (K040998), Covidien<br>Mersilene Mesh (Pre-amendment), Ethicon Inc. |
#### Device Description:
Xylos® Macro-Porous Surgical Mesh is a flexible, non-resorbable implant composed of microbial-derived cellulose; there are no animal or human derived components in the device. Xylos® Macro-Porous Surgical Mesh is strong, conformable, biocompatible and includes macro-pores to facilitate tissue in-growth. The device is not subject to degradation or weakening by the action of tissue enzymes.
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Xylos® Corporation
#### Indications for Use:
Xylos® Macro-Porous Surgical Mesh is intended to be used for implantation to reinforce and protect soft tissue including but not limited to: defects of the abdominal and thoracic wall, muscle flap reinforcement, hernias, suture-line reinforcement and other reconstructive procedures. This mesh may be used for the repair of hernia and other fascial deficiencies that require the addition of a reinforcing or bridging material to obtain the desired surgical result.
X ylos® Macro-Porous Surgical Mesh is also intended for the reinforcement of soft tissues repaired by sutures or suture anchors during tendon repair surgery including reinforcement of rotator cuff, patellar, Achilles, biceps, quadriceps or other tendons. Xylos® Macro-Porous Surgical Mesh is not intended to replace normal body structure or provide the full mechanical strength to support tendon repair of the rotator cuff, patellar, Achilles, biceps, quadriceps, or other tendons. Sutures used to repair the tear, and sutures or bone anchors used to attach the tissue to the bone provide biomechanical strength for the tendon repair.
Xylos® Macro-Porous Surgical Mesh is indicated for open and endoscopic procedures and is intended for one-time use only.
#### Technological Characteristics:
Xylos® Macro-Porous Surgical Mesh is a thin, conformable, non-resorbable surgical mesh intended for use in soft tissue and tendon repairs. Like its predicate devices, it is intended to be sutured in place and provide reinforcement for healing soft tissue and tendon. It is composed of microbial cellulose, a naturally occurring biopolymer hydrogel and contains no animal or human-derived materials. Xylos® Macro-Porous Surgical Mesh has the identical material composition to five previously cleared surgical devices: Xylos® Surgical Mesh (K081882), Xylos® Securian® Tissue Reinforcement Matrix (K083823), Xylos® Porous Surgical Mesh (K090880), Xylos® MTA® Protective Sheet (K090788) and Xylos® Vessel Guard (K100984). The material has demonstrated its biocompatibility via testing as defined in ANSI/AAMI/ISO 10993 Biological evaluation of
#### CONFIDENTIAL
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Xylos® Corporation
medical devices. It is not subject to degradation or weakening by the action of tissue enzymes. Macro-pores are incorporated into the device to facilitate tissue in-growth.
Xylos® Macro-Porous Surgical Mesh may be easily cut into any desired shape or size without fraying or unraveling. It is presented ready-to-use in a sterile double-pouched package.
Xylos® Macro-Porous Surgical Mesh is substantially equivalent in biocompatibility to Xylos® Securian® Tissue Reinforcement Matrix (K083823) because they have the identical material composition.
### Performance Testing:
Xylos® Macro-Porous Surgical Mesh was subjected to mechanical performance tests typical for surgical mesh products (tensile strength, burst strength, and suture pull out This testing demonstrated that Xylos® Macro-Porous Surgical Mesh is strength). mechanically equivalent to the predicate devices: Pegasus' OrthADAPT Bioimplant (K071065). Ethicon's Mersilene Mesh (Pre-amendment), and Covidien's Parietex Composite Mesh (K040998). Further, animal study results show that Xylos® Macro-Porous Surgical Mesh possesses sufficient physical strength for the intended use.
## Substantial Equivalence:
Xylos® Macro-Porous Surgical Mesh is substantially equivalent to the following previously cleared devices, Xylos® Securian® Tissue Reinforcement Matrix (K083823), Pegasus' OrthADAPT Bioimplant (K071065), Covidien's Parietex Composite Mesh (K040998) and Ethicon's Mersilene Mesh (Pre-amendment). J Xylos® Macro-Porous Surgical Mesh has the same intended use and the same or similar indications, technological characteristics, and principles of operations as these predicate devices. Performance data demonstrates that Xylos® Macro-Porous Surgical Mesh is mechanically equivalent to Pegasus' OrthADAPT Bioimplant (K071065), Ethicon's Mersilene Mesh (Pre-amendment), and Covidien's Parietex Composite Mesh (K040998). Xylos® Macro-Porous Surgical Mesh is identical in material composition to Xylos® Securian® Tissue
#### CONFIDENTIAL
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Xylos® Corporation
Reinforcement Matrix (K083823) and therefore, substantially equivalent in regard to biocompatibility. Thus, Xylos® Macro-Porous Surgical Mesh is substantially equivalent to the predicate devices.
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Image /page/4/Picture/1 description: The image shows the logo for the Department of Health & Human Services USA. The logo features the department's emblem, which is a stylized representation of a caduceus, a symbol often associated with medicine and healthcare. The emblem is accompanied by the text "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" arranged in a circular fashion around the emblem.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G61 Silver Spring, MD 20993-0002
Xylos Corporation % Dr. Gonzalo C. Serafica VP Technology and Intellectual Property 838 Town Center Drive Langhorne, Pennsylvania 19047
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Re: K111584
Trade/Device Name: Xylos® Macro-Porous Surgical Mesh Regulation Number: 21 CFR 878.3300 Regulation Name: Surgical mesh Regulatory Class: II Product Code: FTM Dated: August 12, 2011 Received: August 15, 2011
Dear Dr. Serafica:
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 misbarading 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 aft the Act or any Federal statutes and regulations administered by other Federal agencies. Your must comply with all the Act's requirements, including, but not limited to: registration and listing (21
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Page 2 - Dr. Gonzalo C. Serafica
CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set 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 100-1050.
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.html 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 (2) 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 Inc.
(800) 638, 2041 -7 (201) 706 - 700 - 2017 - 11:00 (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/ResourcesforYou/Industry/default.htm.
Sincerely yours,
Mark A. Millman
Mark N. Melkerson Director Division of Surgical, Orthopedic and Restorative Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Section 4: Indications for Use Statement
510(k) Number: K | | | 5 84
Xylos® Macro-Porous Surgical Mesh Device Name:
#### Indications for Use:
Xylos® Macro-Porous Surgical Mesh is intended to be used for implantation to reinforce and protect soft tissue including but not limited to: defects of the abdominal and thoracic wall, muscle flap reinforcement, hernias, suture-line reinforcement and other reconstructive procedures. This mesh may be used for the repair of hernia and other fascial deficiencies that require the addition of a reinforcing or bridging material to obtain the desired surgical result.
Xylos® Macro-Porous Surgical Mesh is also intended for the reinforcement of soft tissues repaired by sutures or suture anchors during tendon repair surgery including reinforcement of rotator cuff, patellar, Achilles, biceps, quadriceps or other tendons. Xylos® Macro-Porous Surgical Mesh is not intended to replace normal body structure or provide the full mechanical strength to support tendon repair of the rotator cuff, patellar, Achilles, biceps, quadriceps, or other tendons. Sutures used to repair the tear, and sutures or bone anchors used to attach the tissue to the bone provide biomechanical strength for the tendon repair.
Xylos® Macro-Porous Surgical Mesh is indicated for open and endoscopic procedures and is intended for one-time use only.
Prescription Use AND/OR -
(Part 21 CFR 801 Subpart D)
Over-The-Counter Use -------
(21 CFR 807 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Page 1 of 1
Daniel Kline by UKM
CONFIDENTIAL
Division Sien Division of Surgical, Orthopedic, and Restorative Devices
. Page 15 of 52
510(k) Number K111564
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.