NovoStitch Pro Meniscal Repair System, CTX-A004 (size 0)
K181772 · Ceterix Orthopaedics, Inc. · GAT · Aug 1, 2018 · General, Plastic Surgery
Device Facts
Record ID
K181772
Device Name
NovoStitch Pro Meniscal Repair System, CTX-A004 (size 0)
Applicant
Ceterix Orthopaedics, Inc.
Product Code
GAT · General, Plastic Surgery
Decision Date
Aug 1, 2018
Decision
SESE
Submission Type
Special
Regulation
21 CFR 878.5000
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The NovoStitch Pro Mensical Repair System is intended for approximation of soft tissue in meniscal repair procedures.
Device Story
Handheld, disposable arthroscopic surgical instrument; used by orthopedic surgeons for meniscal repair. System consists of delivery handle and suture cartridges. Surgeon manually operates device to pass size 0 braided, nonabsorbable polyethylene suture through soft tissue. Device retains tissue via upper and lower jaws; delivers up to six sutures per procedure. Output is placed suture for tissue approximation; facilitates healing by securing meniscal tears. Benefits include reliable, minimally invasive suture delivery during arthroscopic procedures.
Clinical Evidence
Bench testing only. Simulated use environment testing validated device strength, reliability, insertion, suture deployment, and removal. Biocompatibility testing conducted per ISO 10993-1; suture met requirements for permanent implants, and handle components met requirements for limited duration contact.
Indicated for approximation of soft tissue in meniscal repair procedures in patients requiring arthroscopic surgery.
Regulatory Classification
Identification
Nonabsorbable poly(ethylene terephthalate) surgical suture is a multifilament, nonabsorbable, sterile, flexible thread prepared from fibers of high molecular weight, long-chain, linear polyesters having recurrent aromatic rings as an integral component and is indicated for use in soft tissue approximation. The poly(ethylene terephthalate) surgical suture meets U.S.P. requirements as described in the U.S.P. Monograph for Nonabsorbable Surgical Sutures; it may be provided uncoated or coated; and it may be undyed or dyed with an appropriate FDA listed color additive. Also, the suture may be provided with or without a standard needle attached.
Special Controls
*Classification.* Class II (special controls). The special control for this device is FDA's “Class II Special Controls Guidance Document: Surgical Sutures; Guidance for Industry and FDA.” See § 878.1(e) for the availability of this guidance document.
Predicate Devices
NovoStitch Pro Meniscal Repair System, CTX-A003 (size 2-0) (K180531)
Reference Devices
Force Fiber® Green Ultra High Molecular Weight Polyethylene Non-Absorbable Surgical Suture (K100506)
Submission Summary (Full Text)
{0}------------------------------------------------
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, with the letters "FDA" in a blue square. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.
August 1, 2018
Ceterix Orthopaedics, Inc. % Mr. Tarhan Kayihan Director of Quality and Regulatory 6500 Kaiser Drive. Suite 120 Fremont, California 94555
# Re: K181772
Trade/Device Name: NovoStitch Pro Meniscal Repair System, CTX-A004 (size 0) Regulation Number: 21 CFR 878.5000 Regulation Name: Nonabsorbable Poly(Ethylene Terephthalate) Surgical Suture Regulatory Class: Class II Product Code: GAT Dated: July 2, 2018 Received: July 3, 2018
Dear Mr. Kayihan:
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/cdrl/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 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
{1}------------------------------------------------
devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/CombinationProducts/GuidanceRegulatoryInformation/ucm597488.htm); good manufacturing practice requirements as set forth in the quality systems (QS) 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 http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm.
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/) and CDRH Learn (http://www.fda.gov/Training/CDRHLearn). 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 (http://www.fda.gov/DICE) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
# David Krause -S
for Binita S. Ashar, M.D., M.B.A., F.A.C.S. Director Division of Surgical Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{2}------------------------------------------------
#### Indications for Use
510(k) Number (if known)
#### K181772
Device Name
NovoStitch Pro Mensical Repair System, CTX-A004 (size 0)
Indications for Use (Describe)
The NovoStitch Pro Mensical Repair System is intended for approximation of soft tissue in meniscal repair procedures.
Type of Use (Select one or both, as applicable)
> Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
#### CONTINUE ON A SEPARATE PAGE IF NEEDED.
This section applies only to requirements of the Paperwork Reduction Act of 1995.
#### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.*
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff@fda.hhs.gov
"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."
{3}------------------------------------------------
Image /page/3/Picture/0 description: The image shows the text "K181772 P. 1 of 3" on the left side. To the right of the text is an orange graphic and the word "CETERIX" in red, with the word "ORTHOPAEDICS" in orange below it. The image appears to be a logo or header for a document.
# 510(K) SUMMARY
### Manufacturer and Submitter
| Company Name: | Ceterix Orthopaedics, Inc. |
|------------------|----------------------------------------------------------------------------------------------------------------------------------|
| Company Address: | 6500 Kaiser Drive<br>Suite 120<br>Fremont, CA 94555<br>TEL: (650) 316-8660<br>FAX: (650) 618-2779<br>Email: tkayihan@ceterix.com |
| Contact Person: | Tarhan Kayihan |
### Device Name and Classification
| Trade/Proprietary Name: | NovoStitch® Pro Meniscal Repair System, CTX-A004 (size 0) |
|-------------------------|-----------------------------------------------------------------------------------------------|
| Common Name: | Suture, Nonabsorbable, Synthetic, Polyethylene |
| Classification Name: | Suture, Nonabsorbable, Synthetic, Polyethylene |
| Regulation Number: | 21 CFR 878.5000 |
| Regulatory Class: | II |
| Product Code: | GAT |
| Panel: | General & Plastic Surgery |
| Predicate Device | |
| Device Name: | NovoStitch Pro Meniscal Repair System, CTX-A003 (size 2-0) |
| 510(k) Number: | K180531 |
| Applicant: | Ceterix Orthopaedics |
| Reference Device | |
| Device Name: | Force Fiber® Green Ultra High Molecular Weight<br>Polyethylene Non-Absorbable Surgical Suture |
| 510(k) Number: | K100506 |
| Applicant: | Teleflex Medical |
### Device Description
The NovoStitch Pro Meniscal Repair System, size 0 is a new configuration of the predicate device. While the predicate device passes size 2-0 suture, this new configuration passes size 0 braided, nonabsorbable, surgical suture through soft tissue in arthroscopic surgery. It is comprised of a handheld surgical instrument to which cartridges preloaded with suture are attached.
{4}------------------------------------------------
Image /page/4/Picture/1 description: The image shows the logo for "Ceterix Orthopaedics". The logo consists of an abstract orange shape on the left, followed by the word "CETERIX" in red, and the word "ORTHOPAEDICS" in a smaller, lighter orange font below it. The logo is clean and modern, with a focus on the company name.
# Intended Use/Indication for Use
The NovoStitch Pro Meniscal Repair System, size 0 is intended for approximation of soft tissue in meniscal repair procedures.
# Technological Characteristics
The NovoStitch Pro Meniscal Repair System, size 0 is a handheld, disposable surgical instrument coupled with an implantable suture for the approximation of soft tissue in meniscal repair procedures. The system is comprised of a delivery handle and a suture cartridge, both of which are provided sterile.
| Characteristic | NovoStitch Pro Meniscal Repair System, CTX-A004 (size 0) | NovoStitch Pro Meniscal Repair System, CTX-A003 (size2-0) |
|---------------------|-------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|
| 510(k) # | K181772 | K180531 |
| Method of Use | Handheld, manually operated, single procedure arthroscopic suture placement system | Handheld, manually operated, single procedure arthroscopic suture placement system |
| Delivery Instrument | Identical to predicate device, NovoStitch Pro Meniscal Repair System, CTX-A003 (size 2-0) | As described in K180531 |
| Handle Material | ABS/PC blend | ABS/PC blend |
| Distal end material | Stainless steel | Stainless steel |
| Usability | Single-patient use, can deliver up to six sutures, disposable | Single-patient use, can deliver up to six sutures, disposable |
| Tissue interaction | Tissue retained by upper and lower jaw | Tissue retained by upper and lower jaw |
| Needle material | Nitinol | Nitinol |
| Suture material | Polyethylene, nonabsorbable surgical suture, size 0, white with green co-braid | Polyethylene, nonabsorbable surgical suture, size 2-0, white with blue co-braid |
| Suture supplier | Teleflex Medical | Teleflex Medical |
| Sterilization | Ethylene oxide | Ethylene oxide |
| Knot tying method | Manually tied knot | Manually tied knot |
#### Table 3-1. Comparison of technological characteristics to predicate device
### Performance Data
Product performance testing for the NovoStitch Pro Meniscal Repair System, size 0 was performed in a simulated use environment. Device strength, device reliability, device insertion, suture deployment, device removal, and the ability to reload the device with new suture cartridges to perform additional device insertions, deployments and removals were validated. Bench testing was performed to verify that the device and the implantable suture meet all pre-established acceptance criteria. The verification testing has demonstrated that the device can reliably deliver up to six stitches. This includes the preloaded handle assembly and up to five additional cartridges. The verification testing
{5}------------------------------------------------
Image /page/5/Picture/1 description: The image shows the logo for "Ceterix Orthopaedics". The logo consists of an abstract graphic on the left, resembling an orange leaf with curved lines. To the right of the graphic is the word "CETERIX" in red, with the word "ORTHOPAEDICS" in a smaller, tan font underneath.
included device joint strength and device performance evaluations. Sterilization, packaging and shelf life were either validated or adopted from previous testing where appropriate. In addition, biocompatibility testing for each element of the NovoStitch Pro Meniscal Repair System, size 0 was conducted to demonstrate compliance with ISO 10993-1. The suture implant met all biocompatibility requirements for permanent implants in contact with tissue and/or bone. The patient contact portions of the delivery handle met all requirements for limited duration contact with tissue and/or bone.
### Conclusion
The NovoStitch Pro Meniscal Repair System, size 0 is substantially equivalent to the predicate device with respect to safety, effectiveness and reliability.
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.