K103787 · Kensey Nash Corp. · FTM · Feb 7, 2011 · General, Plastic Surgery
Device Facts
Record ID
K103787
Device Name
MEDEOR MATRIX
Applicant
Kensey Nash Corp.
Product Code
FTM · General, Plastic Surgery
Decision Date
Feb 7, 2011
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 878.3300
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
Medeor™ Matrix is indicated for use in general surgical procedures for the reinforcement and repair of soft tissue where weakness exists including, but not limited to; defects of the thoracic wall, suture line reinforcement, and muscle flap reinforcement; hernia repair; soft tissue reconstructive procedures including plastic and reconstructive surgical applications, and for reinforcement of the soft tissues, which are repaired by suture or suture anchors, including but not limited to, rotator cuff, patellar, Achilles, biceps, quadriceps and other tendons. Medeor Matrix 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. Medeor Matrix is intended for one time use.
Device Story
Medeor Matrix is a resorbable, porcine-derived collagen surgical mesh used for soft tissue reinforcement. Supplied sterile in dry or saline-hydrated form; labeling updated to allow hydration with autologous bodily fluids prior to implantation. Used by surgeons in clinical settings for hernia repair, thoracic wall defects, and tendon reinforcement. Device acts as a scaffold; does not replace native tissue or provide primary mechanical strength for tendon repairs, which rely on sutures or bone anchors. Benefits include reinforcement of weakened soft tissue sites. No changes to design or manufacturing process from predicate.
Clinical Evidence
Bench testing included biocompatibility (cytotoxicity, sensitization, reactivity, toxicity, genotoxicity, implantation, pyrogenicity, hemolysis), viral inactivation validation, tensile testing, and suture retention. Hydration testing performed with various fluids. In vivo studies conducted in sheep (defect repair) and rabbits (tissue reaction) confirmed safety and performance. No human clinical trial data presented.
Technological Characteristics
Resorbable porcine-derived collagen surgical mesh. Supplied sterile in double-layer peel-open packaging. Hydration options: saline or autologous bodily fluids. Biocompatibility per ISO 10993-1:2003. Mechanical properties include tensile strength and suture retention. No electronic components, software, or energy sources.
Indications for Use
Indicated for soft tissue reinforcement and repair in general surgery, including thoracic wall defects, hernia repair, muscle flap reinforcement, and plastic/reconstructive procedures. Also indicated for reinforcement of soft tissues repaired by sutures or anchors in tendons (rotator cuff, patellar, Achilles, biceps, quadriceps). Not intended to provide full mechanical strength for tendon repair; requires sutures/anchors for biomechanical support. Single use only.
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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# Kensey Nash
14103787
FEB - 7 2011
#### 510(k) Summary
| Submitted by: | Kensey Nash Corporation<br>735 Pennsylvania Drive<br>Exton, PA 19341<br>484-713-2100 |
|------------------------------------------|-----------------------------------------------------------------------------------------------------------------|
| Contact Person: | Lori Burns, MS, RAC<br>Sr. Regulatory Affairs Specialist<br>Ph: (484) 713-2186<br>Fax: (484) 713-2903 |
| Date Prepared:<br>510(K) #: | January 31, 2011<br>K103787 |
| Device: | |
| Trade Name: | Medeor™ Matrix |
| Common Name: | Surgical Mesh |
| Proposed Classification:<br>Product Code | 21 CFR 878.3300, Class II<br>FTM |
| Predicate Device: | Medeor™ Matrix (K091499) - Kensey Nash Corporation<br>KN ECM Surgical Patch (K094061) - Kensey Nash Corporation |
#### Device Description:
The purpose of this submission is to add hydration with autologous bodily fluids to the labeling of the Medeor Matrix device. Medeor Matrix is a resorbable porcine-derived collagen surgical mesh intended for reinforcement of soft tissues where weakness exists. The device is supplied sterile in double-layer peel-open packages. The device is packaged either dry or hydrated with saline. The device can be hydrated with saline or autologous bodily fluids prior to implantation.
### Intended Use:
Medeor™ Matrix is indicated for use in general surgical procedures for the reinforcement and repair of soft tissue where weakness exists including, but not limited to; defects of the thoracic wall, suture line reinforcement, and muscle flap reinforcement; hernia repair; soft tissue reconstructive procedures including plastic and reconstructive surgical applications, and for reinforcement of the soft tissues,
1-800-524-1984
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# Kensey Nash
which are repaired by suture or suture anchors, including but not limited to, rotator cuff, patellar, Achilles, biceps, quadriceps and other tendons.
Medeor Matrix 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.
Medeor Matrix is intended for one time use.
## Technological Characteristics:
There have been no changes to the design or manufacturing process of Medeor Matrix (K091499). Medeor Matrix is substantially equivalent to KN ECM Surgical Patch (K094061) with respect to its design, intended use and technological characteristics.
## Performance Data:
The following biocompatibility tests were conducted on the finished device according to the requirements of ISO 10993-1:2003, Biological evaluation of medical devices - Part 1: Evaluation and testing: Cytotoxicity, Sensitization, Intracutaneous Reactivity, Systemic Toxicity, Sub-Chronic Toxicity, Genotoxicity, Implantation, Pyrogenicity and Hemolysis.
The manufacturing methods have been tested by an independent laboratory to assure appropriate levels of viral inactivation.
Mechanical test reports were completed for the following:
- . Tensile Testing
- . Suture Retention
Hydration testing was performed using various hydration fluids.
The device was evaluated in two in vivo studies; defects were repaired and evaluated in a sheep model and a rabbit study was performed to evaluate tissue reactions.
The Medeor Matrix surgical mesh passed the requirements of all tests.
### Substantial Equivalence:
Performance Testing has confirmed that Medeor Matrix is substantially equivalent to the predicate devices with regard to materials, intended use, and technological characteristics, pursuant to section 510(k).
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Image /page/2/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo features a stylized eagle or bird symbol, with three curved lines representing the body and wings. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular fashion around the bird symbol.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
June 16, 2014
Kensey Nash Corporation Ms. Lori Burns Manager, Regulatory Affairs 735 Pennsylvania Drive Exton, Pennsylvania 19341
Re: K103787
Trade/Device Name: Medeor™ Matrix Regulation Number: 21 CFR 878.3300 Regulation Name: Surgical mesh Regulatory Class: Class II Product Code: FTM, OXB, OXE, OXH, OWY Dated: December 22, 2010 Received: December 27, 2010
Dear Ms. Burns:
This letter corrects our substantially equivalent letter of February 7, 2011.
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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Page 2 - Ms. Lori Burns
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 contact the Division of Industry and Consumer Education 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. 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 Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours,
# David Krause -S
- Binita S. Ashar, M.D., M.B.A., F.A.C.S. for Director Division of Surgical Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Kensev Nash
### Indications for Use Statement
510(k) Number: K103787
Medeor TM Matrix Device Name:
### Indications for Use:
Medeor Matrix is indicated for use in general surgical procedures for the reinforcement and repair of soft tissue where weakness exists including, but not limited to; defects of the thoracic wall, suture line reinforcement, and muscle flap reinforcement; hernia repair; soft tissue reconstructive procedures including plastic and reconstructive surgical applications; and for reinforcement of the soft tissues, which are repaired by suture anchors, including but not limited to, rotator cuff, patellar, Achilles, biceps, quadriceps and other tendons.
The device 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.
The device is intended for single use only.
Prescription Use X (Per 21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use (Per 21 CFR 801 Subpart C)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Dain D. Kainebe MXM
(Division Sign-Off) Division of Surgical, Orthopedic, and Restorative Devices
**510(k) Number** K103787
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.