K101287 · Tepha, Inc. · OWT · Aug 30, 2010 · General, Plastic Surgery
Device Facts
Record ID
K101287
Device Name
TEPHAFLEX COMPOSITE MESH
Applicant
Tepha, Inc.
Product Code
OWT · General, Plastic Surgery
Decision Date
Aug 30, 2010
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 878.3300
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
TephaFLEX composite mesh is intended to be used wherever temporary wound support is required, to reinforce soft tissues where weakness exists or for the repair of hernia or other fascial defects that require the addition of a reinforcing or bridging material to obtain the desired surgical result. This includes, but is not limited to the following procedures: repair of colon and rectal prolapse (excluding rectocele) using an abdominal approach, sacral colposuspension and reconstruction of the pelvic floor using an abdominal approach (excluding transvaginal repair of pelvic organ prolapse). The film side of the device may help minimize the potential for tissue attachment to the mesh in case of direct contact with the viscera.
Device Story
TephaFLEX Composite Mesh is a surgical implant consisting of a knitted mesh layer and a solid film layer, both composed of P4HB (poly-4-hydroxybutyrate) monofilament fiber. The device provides temporary wound support and soft tissue reinforcement. The knitted mesh side facilitates tissue ingrowth, while the film side acts as a physical barrier to minimize tissue attachment to viscera. It is intended for use by surgeons in procedures such as hernia repair, pelvic floor reconstruction, and rectal prolapse repair via abdominal approach. The device functions as a mechanical scaffold for tissue healing; it does not involve electronic components, software, or automated analysis.
Clinical Evidence
No clinical data. Evidence consists of bench testing (comparative burst strength, suture pull-out, tensile strength, and tear resistance) and a long-term subcutaneous in vivo animal implantation study with histological assessments conducted out to 78 weeks to characterize strength retention.
Technological Characteristics
Composite surgical mesh composed of P4HB (poly-4-hydroxybutyrate). Structure: knitted mesh layer combined with a solid film layer. Material: size 5-0 monofilament P4HB fiber. Mechanical properties characterized by burst, suture pull-out, tensile, and tear resistance testing. Non-electronic, non-software device.
Indications for Use
Indicated for patients requiring temporary wound support, soft tissue reinforcement, or repair of hernia/fascial defects. Procedures include abdominal repair of colon/rectal prolapse (excluding rectocele), sacral colposuspension, and abdominal pelvic floor reconstruction (excluding transvaginal repair).
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.
Predicate Devices
TephaFLEX Surgical Film
TephaFLEX Surgical Mesh
Submission Summary (Full Text)
{0}------------------------------------------------
K10/287
Image /page/0/Picture/1 description: The image shows the logo for TEPHA MEDICAL DEVICES. The logo consists of the word "TEPHA" in large, bold, sans-serif font, with the words "MEDICAL DEVICES" in a smaller font below. To the left of the word "TEPHA" is a graphic element that appears to be an abstract design. The logo is black and white.
99 Hayden Avenue Suite 360 Lexington, MA 02421 tel: (781) 357-1700 fax: (781) 357-1701
## Section X Summary of Safety and Effectiveness (Prepared July 30, 2012)
AUG 30 2010
Pursuant to §513(i)(3)(A) of the Food, Drug, and Cosmetic Act, Tepha, Inc. is submitting the following summary of information respecting safety and effectiveness:
| Trade Name: | TephaFLEX Composite Mesh |
|-----------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Sponsor: | Tepha, Inc.<br>99 Hayden Avenue, Suite 360<br>Lexington, MA 02421<br>Telephone: 781.357.1700<br>Fax: 781.357.1701 |
| Contact: | Mary P. LeGraw, V.P., Regulatory Affairs |
| Device Classification Name: | CFR §878.3300, Surgical Mesh |
| Product Code: | OOD, OTO, OW T, OXL |
| Classification: | According to Section 13 of the Federal Food, Drug and Cosmetic Act,<br>the device classification is Class II, Performance Standards. |
| Predicate Devices: | Tepha, Inc. - TephaFLEX Surgical Film<br>Tepha, Inc. - TephaFLEX Surgical Mesh |
| Indications for Use: | TephaFLEX composite mesh is intended to be used wherever<br>temporary wound support is required, to reinforce soft tissues where<br>weakness exists or for the repair of hernia or other fascial defects<br>that require the addition of a reinforcing or bridging material to obtain<br>the desired surgical result. This includes, but is not limited to the<br>following procedures: repair of colon and rectal prolapse (excluding<br>rectocele) using an abdominal approach, sacral colposuspension and<br>reconstruction of the pelvic floor using an abdominal approach<br>(excluding transvaginal repair of pelvic organ prolapse). The film<br>side of the device may help minimize the potential for tissue<br>attachment to the mesh in case of direct contact with the viscera. |
| Device Description: | The TephaFLEX composite mesh is comprised of a layer of<br>TephaFLEX knitted mesh with a layer of TephaFLEX film on one of<br>its sides. The mesh is prepared from size 5-0 monofilament P4HB<br>fiber and the film is a solid sheet of P4HB material. The knitted mesh<br>side of the construct allows for tissue in growth while the film side<br>provides a layer that physically separates the knitted mesh from<br>underlying tissue and organ surfaces during the wound healing<br>period to minimize tissue attachment to the mesh in case of direct<br>contact with the viscera. |
| Safety and Performance: | Mechanical and in vivo animal testing was performed based on<br>recommendations identified in the FDA surgical mesh guidance<br>document: The Guidance for the Preparation of a Pre-market |
{1}------------------------------------------------
Image /page/1/Picture/0 description: The image shows the logo for TEPHA MEDICAL DEVICES. The logo is in black and white. The word "TEPHA" is in large, bold letters, and the words "MEDICAL DEVICES" are in smaller letters below. There is a design to the left of the word "TEPHA".
99 Hayden Avenue Suite 360 Lexington, MA 02421 tel: (781) 357-1700 fax: (781) 357-1701
Notification Application for a Surgical Mesh. Specifically, comparative burst strength, suture pull-out strength, tensile strength and tear resistance strength was characterized. Long term in vivo strength retention was characterized via a subcutaneous in vivo implantation study with histological assessments out to 78 weeks. The mechanical and in vivo data collected determined the mesh to be substantially equivalent to the predicate devices.
Conclusion:
Based on the indications for use, technological characteristics, and safety and performance testing, the TephaFLEX composite mesh has been shown to be substantially equivalent to predicate devices under the Federal Food, Drug and Cosmetic Act.
{2}------------------------------------------------
Image /page/2/Picture/1 description: The image shows the logo for the Department of Health & Human Services (HHS) in the United States. The logo features the department's name in a circular arrangement around a stylized emblem. The emblem consists of a stylized caduceus, a symbol often associated with healthcare, with three intertwined strands representing health, services, and people.
Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002
Tepha. Incorporated % Ms. Mary P. LeGraw Vice President, Regulatory Affairs 99 Hayden Avenue, Suite 360 Lexington, Massachusetts 02421
Re: K101287
Trade/Device Name: TephaFLEX Surgical Mesh Regulation Number: 21 CFR 878.3300 Regulation Name: Surgical mesh Regulatory Class: Class II Product Code: OOD, OTO, OWT, OXL Dated: July 16, 2010 Received: July 19, 2010
AUG 2 4 2012
Dear Ms. LeGraw:
This letter corrects our substantially equivalent letter of August 30, 2010.
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 (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.
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 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.
{3}------------------------------------------------
Page 2 - Ms. Mary P. LeGraw
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/Resourcesfor You/Industry/default.htm.
Sincerely yours,
Mark N. Melkerson
Mark N. Melkerson Director Division of Surgical, Orthopedic and Restorative Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{4}------------------------------------------------
## Indications for Use
510(k) Number (if known): K101287
Device Name: TephaFLEX Surgical Mesh
## Indications for Use:
TephaFLEX® Composite Mesh is intended wherever temporary wound support is required, to reinforce soft tissues where weakness exists or for the repair of hernia or other fascial defects that require the addition of a reinforcing or bridging material to obtain the desired surgical result. This includes, but is not limited to the following procedures: repair of colon and rectal prolapse (excluding rectocele) using an abdominal approach, sacral colposuspension and reconstruction of the pelvic floor using an abdominal approach (excluding transvaginal repair of pelvic organ prolapsed). The film side of the device may help minimize the potential for tissue attachment to the mesh in case of direct contact with the viscera.
Prescription Use: X (21 CFR 801 Subpart D)
AND/OR
Over-The-Counter (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
David Kreefarman
(Division Sign-Off)
Division of Surgical, Orthopedic, and Restorative Devices
510(k) Number K101267
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.