VICRYL™ Suture is indicated for use in general soft tissue approximation and/or ligation, including use in ophthalmic surgery, but not for use in cardiovascular and neurological tissues. PDSTM II Suture is indicated for use in soft tissue approximation, including use in pediatric cardiovascular tissue where growth is expected to occur and ophthalmic surgery. PDS™ II Suture is not indicated in adult cardiovascular tissue and neurological tissue. These sutures are particularly useful where the combination of an absorbable suture and extended wound support (up to 6 weeks) is desirable. PDSTM Plus Suture is indicated for use in soft tissue approximation, including use in pediatric cardiovascular tissue where growth is expected to occur and ophthalmic surgery (other than contact with cornea and sclera). PDS™ Plus is not indicated in adult cardiovascular tissue and neurological tissue. These sutures are particularly useful where the combination of an absorbable suture and extended wound support (up to 6 weeks) is desirable.
Device Story
VICRYL, PDS II, and PDS Plus are sterile, synthetic, absorbable surgical sutures used for soft tissue approximation and ligation. VICRYL is a braided copolymer of glycolide and L-lactide; PDS II and PDS Plus are monofilament sutures made of poly(p-dioxanone). PDS Plus includes the antibacterial agent triclosan. Sutures are available in various gauge sizes, lengths, and needle attachments. Used by surgeons in clinical settings to close wounds or ligate vessels. The devices provide temporary wound support as they are absorbed by the body over time. No changes to materials, construction, or manufacturing compared to predicate devices; labeling updates only.
Clinical Evidence
No clinical data; bench testing not required as technological characteristics are identical to predicate devices.
Technological Characteristics
VICRYL: Polyglactin 910 (90% glycolide, 10% L-lactide), coated with Polyglactin 370 and calcium stearate. PDS II/Plus: Poly(p-dioxanone) monofilament. PDS Plus contains triclosan (max 2360 µg/m). All are sterile, synthetic, absorbable. Available in various gauges/lengths, with or without needles.
Indications for Use
Indicated for soft tissue approximation and/or ligation. VICRYL: general soft tissue, ophthalmic; contraindicated in cardiovascular/neurological. PDS II/Plus: soft tissue, pediatric cardiovascular (where growth expected), ophthalmic; contraindicated in adult cardiovascular/neurological.
Regulatory Classification
Identification
An absorbable poly(glycolide/l-lactide) surgical suture (PGL suture) is an absorbable sterile, flexible strand as prepared and synthesized from homopolymers of glycolide and copolymers made from 90 percent glycolide and 10 percent l-lactide, and is indicated for use in soft tissue approximation. A PGL suture meets United States Pharmacopeia (U.S.P.) requirements as described in the U.S.P. “Monograph for Absorbable Surgical Sutures;” it may be monofilament or multifilament (braided) in form; it may be uncoated or coated; and it may be undyed or dyed with an FDA-approved 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.
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Image /page/0/Picture/0 description: The image contains two logos. On the left is the Department of Health & Human Services logo. On the right is the FDA logo, which includes the letters "FDA" in a blue square, followed by the words "U.S. FOOD & DRUG ADMINISTRATION" in blue text.
June 27, 2019
Ethicon, Inc. Ms. Stephanie Saati Sr. Regulatory Affairs Program Lead Route 22 West P.O. Box 151 Somerville, New Jersey 08876
Re: K183183
Trade/Device Name: VICRYL™ Polyglactin 910 Sterile Synthetic Absorbable Surgical Suture PDSTM II (Polydioxanone) Sterile Synthetic Absorbable Surgical Suture PDSTM Plus Antibacterial (Polydioxanone) Sterile Synthetic Absorbable Surgical Suture Regulation Number: 21 CFR 878.4493 Regulation Name: Absorbable Poly(Glycolide/L-Lactide) Surgical Suture Regulatory Class: Class II Product Code: GAM, NEW Dated: May 23, 2019 Received: May 24, 2019
Dear Ms. Saati:
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/cdrh/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.
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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 devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); 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 https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
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/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). 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 (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
For Nina Mezu-Nwaba, PharmD., MPH., MSc, CAPT., United States Public Health Service Assistant Director (Acting), Plastic Surgery Implant Devices Team Division of Infection Control and Plastic Surgery Devices Office of Surgical and Infection Control Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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#### DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration
# Indications for Use
#### 510(k) Number (if known) K183183
#### Device Name
VICRYLTM (Polyglactin 910) Sterile Synthetic Absorbable Surgical Suture PDSTM II (Polydioxanone) Sterile Synthetic Absorbable Surgical Suture PDSTM Plus Antibacterial (Polydioxanone) Sterile Synthetic Absorbable Surgical Suture
#### Indications for Use (Describe)
VICRYL™ Suture is indicated for use in general soft tissue approximation and/or ligation, including use in ophthalmic surgery, but not for use in cardiovascular and neurological tissues.
PDSTM II Suture is indicated for use in soft tissue approximation, including use in pediatric cardiovascular tissue where growth is expected to occur and ophthalmic surgery. PDS™ II Suture is not indicated in adult cardiovascular tissue and neurological tissue. These sutures are particularly useful where the combination of an absorbable suture and extended wound support (up to 6 weeks) is desirable.
PDSTM Plus Suture is indicated for use in soft tissue approximation, including use in pediatric cardiovascular tissue where growth is expected to occur and ophthalmic surgery (other than contact with cornea and sclera). PDS™ Plus is not indicated in adult cardiovascular tissue and neurological tissue. These sutures are particularly useful where the combination of an absorbable suture and extended wound support (up to 6 weeks) is desirable.
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)
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Image /page/3/Picture/1 description: The image shows the Ethicon logo. The word "ETHICON" is in red, and below it is the phrase "a Johnson & Johnson company" in black cursive. The logo is simple and clean, with a focus on the company name.
# 510(k) Summary
| Submitter: | Ethicon, Inc. a Johnson & Johnson company<br>P.O. Box 151<br>Route 22 West<br>Somerville, NJ 08876-0151 |
|-----------------|------------------------------------------------------------------------------------------------------------------------------------|
| Contact Person: | Stephanie Saati<br>Senior Regulatory Affairs Program Lead<br>Phone: 908-218-3318<br>Fax: 908-218-2595<br>Email: ssaati@its.jnj.com |
Date Prepared: May 20, 2019
| Device Trade Name: | VICRYL TM (Polyglactin 910) Sterile Synthetic Absorbable<br>Surgical Suture |
|----------------------------|-----------------------------------------------------------------------------------------|
| Common Name: | Suture, Absorbable, Synthetic, Polyglycolic Acid |
| Regulatory Classification: | Absorbable poly(glycolide/l-lactide) surgical suture (21 CFR<br>878.4493 |
| Class: | II |
| Code: | GAM |
| Panel: | General and Plastic Surgery Devices |
| Device Trade Name: | PDS TM II (Polydioxanone) Sterile Synthetic Absorbable Surgical Suture |
|----------------------------|------------------------------------------------------------------------|
| Common Name: | Suture, Surgical, Absorbable, Polydioxanone |
| Regulatory Classification: | Absorbable Polydioxanone Surgical Suture (21 CFR 878.4840) |
| Class: | II |
| Product Code: | NEW |
| Panel: | General and Plastic Surgery Devices |
| Device Trade Name: | PDSTM Plus Antibacterial (Polydioxanone) Sterile Synthetic<br>Absorbable Surgical Suture |
|----------------------------|------------------------------------------------------------------------------------------|
| Common Name: | Suture, Surgical, Absorbable, Polydioxanone |
| Regulatory Classification: | Absorbable Polydioxanone Surgical Suture (21 CFR 878.4840) |
| Class: | II |
| Product Code: | NEW |
| Panel: | General and Plastic Surgery Devices |
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Image /page/4/Picture/1 description: The image shows the logo for Ethicon, a Johnson & Johnson company. The word "ETHICON" is written in large, red, sans-serif font. Below it, in a smaller, cursive font, it says "a Johnson & Johnson company". The logo is simple and clean, with a focus on the company name.
# Predicate Devices:
| Device | Company | Product Code | 510(k)/ NDA Number |
|----------------------------------------------------------------------------------------------------------------------------------------|---------------|--------------|--------------------|
| VICRYL™ (Polyglactin 910)<br>Braided Coated and Uncoated<br>Synthetic Absorbable Suture, Dyed<br>& Undyed, Braided and<br>Monofilament | Ethicon, Inc. | GAM | K946271 |
| PDSTM II (Polydioxanone) Suture<br>Dyed & Undyed | Ethicon, Inc. | NEW | N18331 |
| PDS™ Plus Antibacterial Suture | Ethicon, Inc. | NEW | K061037 |
# Device Description:
VICRYL™ (Polyglactin 910) Suture is a sterile, synthetic, absorbable, surgical suture composed of a copolymer made of 90% glycolide and 10% L-lactide. The empirical formula of the copolymer is (C2H2O2)m(C3H4O2)n. VICRYL™ Suture is available as a coated or an uncoated suture.
VICRYL™ Suture is coated with a mixture composed of equal parts of copolymer of glycolide and lactide (Polyglactin 370) and calcium stearate. Polyglactin 910 copolymer and Polyglactin 370 with calcium stearate have been found to be nonantigenic, nonpyrogenic and elicits only a slight tissue reaction during absorption.
VICRYL™ Suture is available undyed and dyed with D&C Violet #2 (Color Index 60725) to enhance visibility in the surgical field.
VICRYL™ Suture is available in a range of gauge sizes and lengths, types and sizes, and in presentations non-needled or attached to needles of various types and sizes.
PDSTM II (Polydioxanone) Suture is a sterile, synthetic, absorbable, surgical monofilament suture prepared from the polyester, poly(p-dioxanone). The empirical molecular formula of the polymer is (C4HoO3)n. Polydioxanone polymer has been found to be nonallergenic, nonpyrogenic, and elicits only a slight tissue reaction during absorption.
PDS™ II Suture is available undyed and dyed with D&C Violet Number 2 (Color Index 60725) to enhance visibility in the surgical field.
PDS™ II Suture is available in a range of gauge sizes and lengths, non-needled or attached to needles of various types and sizes.
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Image /page/5/Picture/1 description: The image shows the logo for Ethicon, a Johnson & Johnson company. The word "ETHICON" is written in large, red, sans-serif letters. Below it, in a smaller, cursive font, it says "a Johnson & Johnson company". The logo is simple and clean, with a focus on the company name.
PDSTM Plus Antibacterial (Polydioxanone) Suture is a sterile, synthetic, absorbable, surgical monofilament suture made from the polyester poly(p-dioxanone). The empirical molecular formula of the polymer is (C4HaO3)n. Polydioxanone polymer has been found to be nonallergenic, nonpyrogenic, and elicits only a slight tissue reaction during absorption.
PDS™ Plus Suture is available undyed and dyed with D&C Violet No. 2 (Color Index 60725) to enhance visibility in the surgical field.
PDS™ Plus Suture contains Irgacare® : MP (triclosan), a broad-spectrum antibacterial agent at no more than 2360 µg/m.
PDSTM Plus Suture is available in a range of gauge sizes and lengths, non-needled or attached to needles of varying types and sizes.
# Indications for Use:
# VICRYL™ (Polyglactin 910) Sterile Synthetic Absorbable Surgical Suture:
VICRYL™ Suture is indicated for use in general soft tissue approximation and/or ligation. including use in ophthalmic surgery, but not for use in cardiovascular and neurological tissues.
### PDS™ II (Polydioxanone) Sterile Synthetic Absorbable Surgical Suture:
PDSTM II Suture is indicated for use in soft tissue approximation, including use in pediatric cardiovascular tissue where growth is expected to occur and ophthalmic surgery. PDSTM II Suture is not indicated in adult cardiovascular tissue and neurological tissue. These sutures are particularly useful where the combination of an absorbable suture and extended wound support (up to 6 weeks) is desirable.
### PDS™ Plus Antibacterial (Polydioxanone) Sterile Synthetic Absorbable Surgical Suture:
PDSTM Plus Suture is indicated for use in soft tissue approximation, including use in pediatric cardiovascular tissue where growth is expected to occur and ophthalmic surgery (other than contact with cornea and sclera). PDS™ Plus Suture is not indicated in adult cardiovascular tissue and neurological tissue. These sutures are particularly useful where the combination of an absorbable suture and extended wound support (up to 6 weeks) is desirable.
### Summary of Technological Characteristics:
The technological characteristics of the subject devices are identical to the predicate devices and performance data are not necessary to establish substantial equivalence.
### Substantial Equivalence:
The proposed devices are identical to the predicate devices with respect to functionality, technological characteristics and intended use. There is no material, device construction,
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Image /page/6/Picture/1 description: The image shows the logo for Ethicon, a Johnson & Johnson company. The word "ETHICON" is in large, red, sans-serif font. Below it, in a smaller, black, cursive font, it says "a Johnson & Johnson company."
performance specification, packaging, sterilization or manufacturing process changes to the currently marketed devices differ only in the labeling (Instructions for Use) which have been revised for clarification, standardization, and harmonization with the intent of creating Instructions for Use which can be supplied globally. There is no change to the intended use or to the patient population for these devices. The proposed devices do not raise new questions of safety or effectiveness as the predicate devices and are therefore substantially equivalent.
# Conclusion:
Based on the intended use, fundamental scientific technology, technological characteristics and the intended use, the following subject devices, VICRYL™ (Polyglactin 910) Sterile Synthetic Absorbable Surgical Suture, PDSTM II (Polydioxanone) Sterile Synthetic Absorbable Surgical Suture, and PDSTM Plus Antibacterial (Polydioxanone) Sterile Synthetic Absorbable Surgical Suture are considered to be substantially equivalent to their predicated devices.
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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.