Sutures India TRULENE Polypropylene Nonabsorbable Surgical Suture is indicated for use in soft tissue approximation and / or ligation, including use in cardiovascular, ophthalmic and neurological procedures.
Device Story
TRULENE is a sterile, monofilament, nonabsorbable surgical suture manufactured from long-chain polyolefin polymer (polypropylene). It is dyed with Phthalocyaninato (2-) copper and may be supplied with an attached needle. The device is intended for use by surgeons in clinical settings for soft tissue approximation and ligation. It functions as a mechanical support for tissue healing. The device is provided for single use only and is sterilized via ethylene oxide (EO).
Clinical Evidence
Bench testing only. Testing performed per USP 26 standards including suture diameter, length, knot pull tensile strength, extractable color, needle attachment strength, and sterility. Results demonstrate the device meets or exceeds USP specifications.
Indicated for soft tissue approximation and/or ligation in cardiovascular, ophthalmic, and neurological procedures. For prescription use.
Regulatory Classification
Identification
Nonabsorbable polypropylene surgical suture is a monofilament, nonabsorbable, sterile, flexible thread prepared from long-chain polyolefin polymer known as polypropylene and is indicated for use in soft tissue approximation. The polypropylene surgical suture meets United States Pharmacopeia (U.S.P.) requirements as described in the U.S.P. Monograph for Nonabsorbable Surgical Sutures; it may be undyed or dyed with an FDA approved color additive; and 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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JUN 3 - 2005
SECTION NO: 16 PAGE NO: -16-1
#### 510K SUMMARY as required by: 21CFR 807.92
### A. APPLICANT INFORMATION
| Name | : SUTURES INDIA PVT. LTD |
|-------------------|--------------------------------------------------------------------------------------------------|
| Address | : Sutures India Pvt. Ltd.<br>118, 3rd Phase, Peenya Industrial Area,<br>Bangalore--560058. India |
| PH.NO. | : 91-80-28395150 / 28370367 / 28377856 |
| FAX NO | : 91-80-28392280. |
| E mail | : sutures@vsnl.com |
| Web address | : www.suturesin.com |
| B. Contact Person | : L.G.Chandrasekhar<br>: MANAGING DIRECTOR |
| C. Date Prepared | : May 07,2004 |
#### D. DEVICE TRADE NAME
- Trade Name . : TRULENE Common name : Nonabsorbable Surgical Suture, U.S.P. . (Monofilament Polypropylene)
- . Classification Name : Nonabsorbable Polypropylene Surgical Suture
## E. PREDICATE DEVICES
- . Polypropylene Nonabsorbable surgical suture, 210(K) Number K001185, C.P.Medical, Portland, OR 97232.
- Nonabsorbable surgical ● Polypropylene suture, 510(k) Number K961389. R.K.Medical L.L.C. Danbury, CT 06810
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641511
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K041311
Page 2 of 4
| SECTION NO:16 | PAGE NO: -16-2 |
|---------------|----------------|
|---------------|----------------|
#### F. DESCRIPTION OF THE DEVICE
TRULENE Nonabsorbable polypropylene surgical suture is a monofilament, nonabsorbable, sterile, flexible thread prepared from long-chain polyolefin polymer known as polypropylene.
The polypropylene surgical suture meets united states pharmacopeia (U.S.P.) requirements as described in the U.S.P. monograph for nonabsorbable surgical sutures; it is dyed with an FDA approved color additive (Phthalocyaninato (2-) copper); and the suture is provided with a standard needle attached.
#### G. INTENDED USE OF THE DEVICE
Sutures India TRULENE Polypropylene Nonabsorbable Surgical Suture is indicated for use in soft tissue approximation and / or ligation, including use in cardiovascular, ophthalmic and neurological procedures.
| Comparison items | Sutures<br>India Pvt.<br>Ltd | CP Medical | R.K.Medical |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------|--------------|-------------|
| Nonabsorbable polypropylene surgical suture<br>is a monofilament, nonabsorbable, sterile,<br>flexible thread prepared from long-chain<br>polyolefin polymer known as polypropylene. | Same | Same | Same |
| The sutures are inert, noncollageneous and<br>nonantigenic. | Same | Same | Same |
| Polypropylene Nonabsorbable Surgical<br>Suture is available undyed or dyed with<br>(Phthalocyaninato (2-) copper) | Same | Same | Same |
| Polypropylene Nonabsorbable Surgical<br>Suture may be provided with or without a<br>standard needle attached. | Same | Same | Same |
| Polypropylene Nonabsorbable Surgical<br>Suture is indicated for use in soft tissue<br>approximation and / or ligation, including use<br>in cardiovascular, ophthalmic and<br>neurological procedures. | Same | Same | Same |
| Comparison items | Sutures<br>India Pvt.<br>Ltd | C.P. Medical | R.K.Medical |
| Polypropylene Nonabsorbable Surgical<br>Suture is supplied for single use only. | Same | Same | Same |
| Polypropylene Nonabsorbable Surgical<br>Suture is sterilized by EO method | Same | Same | Same |
| Polypropylene Nonabsorbable Surgical<br>Suture is packaged in the same or equivalent<br>manner, and has the same or equivalent<br>labeling claims as the predicate devices<br>including indications, warnings, cautions and<br>precautions | Same | Same | Same |
| Finished suture material meets the<br>performance requirements defined in the<br>United States Pharmacopeia current edition<br>USP26 for Diameter<861> | Same | Same | Same |
| Finished suture material meets the<br>performance requirements defined in the<br>United States Pharmacopeia current edition<br>USP26 for Tensile strength<881> | Same | Same | Same |
| Finished suture material meets the<br>performance requirements defined in the<br>United States Pharmacopeia current edition<br>USP26 for Needle attachment<871> | Same | Same | Same |
| Polypropylene Nonabsorbable Surgical<br>Suture meets the Official Monograph of the<br>United States Pharmacopeia current edition<br>USP26 for Extractable color | Same | Same | Same |
| Finished suture material meets the<br>performance requirements defined in the<br>United States Pharmacopeia current edition<br>USP26 for finish suture Length Requirement<br>(95% of stated label length) | Same | Same | Same |
| Finished suture material packaged in a same<br>or equivalent manner with sterile single or<br>double packing having labeling conforming<br>to 21CFR and USP 26 | Same | Same | Same |
| Polypropylene Nonabsorbable Surgical<br>Suture is biologically compatible when tested | Same | Same | Same |
#### COMPARISON TABLE SUTURES INDIA "TRULENE" NONABSORBABLE SURGICAL SUTURE (POLYPROPYLENE) TO PREDICATE DEVICES
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K041511
## SECTION NO:16
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page 1
#### PAGE NO: -16-4 SECTION NO: 16
#### CONCLUSION
Sutures India "TRULENE" Polypropylene nonabsorbable surgical suture is composed of the same material, as are the predicated devices and has the same design, as do the predicate devices. The suture is manufactured in a manner typical of the industry and equivalent to that used to produce predicate devices. Further the subject device is offered with the same colorant (Phthalocyaninato (2-) copper) at a concentration that conforms to the requirements of Title 21 CFR § 73.8045, as are of the predicate devices.
Testing of suture diameter, suture length, knot pull tensile strength, extractable color, needle attachment strength and sterility to methods outlined in USP 26 demonstrates Sutures India "TRULENE" Polypropylene nonabsorbable surgical suture meets or exceeds USP specifications and are equivalent in terms of the above mentioned predicate devices.
\$\rightarrow\$ - \$\vdash\$ \$\vdash\$
L.G.Chandrasekhar Managing Director
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Image /page/4/Picture/1 description: The image shows the seal of the Department of Health and Human Services (HHS). The seal features the HHS logo, which is a stylized human figure with three arms reaching upwards. The logo is surrounded by the words "DEPARTMENT OF HEALTH AND HUMAN SERVICES - USA" in a circular arrangement. The seal is black and white.
Public Health Service
3 2005 JUN
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
Mr. L.G. Chandrasekhar Managing Director Sutures India Private Limited 472 D, 13th Cross, 4th Phase Peenya Industrial Area, Bangalore 560058, India
Re: K041511
Trade/Device Name: TRULENE™ Non-absorbable Polypropylene Surgical Suture Regulation Number: 21 CFR 878.5010 Regulation Name: Nonabsorbable polypropylene surgical suture Regulatory Class: II Product Code: GAW Dated: May 26, 2005 Received: June 1, 2005
Dear Mr. Chandrasekhar:
We have reviewed your Section 510(k) premarket notification of intent to market the device wt nave reviewed your becamed the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate for use stated in the enclobate) to region) the enactment date of the Medical Device Amendments, or to conimered proc to May 20, 1978, in accordance with the provisions of the Federal Food, Drug, uc vices that have been require approval of a premarket approval application (PMA). and Costlictic 71ct (71ct) that to not requent of the general controls provisions of the Act. The I ou may, mercerere, market the Act include requirements for annual registration, listing of general controls provisions 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 your device is etablineal controls. Existing major regulations affecting your device it may be subject to sach additions, 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 I Teast of advised that I Dris Sussantes over device complies with other requirements of the Act that I Dri has made a and regulations administered by other Federal agencies. You must or any I caeral statutes and regarments, including, but not limited to: registration and listing (21 Comply with an the Her Frequirements)01); good manufacturing practice requirements as set Of I latt 0077, adoning (21 CFR Part 820); and if applicable, the electronic form in the quality byocally (Sections 531-542 of the Act); 21 CFR 1000-1050.
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Page 2 - Mr. L.G. Chandrasekhar
This letter will allow you to begin marketing your device as described in your Section 510(k) I mis iction will and w you'ls cognifiading of substantial equivalence of your device to a legally prematics notification - The sults in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please If you desire specific durile for your aco) 276-0115 . Also, please note the regulation entitled, eonider and of Crise of Cremarket notification" (21CFR Part 807.97). You may obtain other general information on your responsibilities under the Act from the Division of Small other general international and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html.
Sincerely yours,
Miriam C. Provost, Ph.D. Acting Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known): K041511
Device Name: TRULENE™ Non-absorbable Polypropylene Surgical Suture
Indications For Use:
TRULON™ Non-absorbable Polypropylene Surgical Suture is indicated for use in soft tissue approximation and/or ligation including use in cardiovascular, ophthalmic and neurological procedures.
Prescription Use
AND/OR
Over-The-Counter Use
(Part 21 CFR 801 Subpart D)
(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)
f
Neurological Devices
Restorative
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.