K180701 · Safepath Medical, Inc. · GAP · Jun 25, 2018 · General, Plastic Surgery
Device Facts
Record ID
K180701
Device Name
SafePath Suturing System
Applicant
Safepath Medical, Inc.
Product Code
GAP · General, Plastic Surgery
Decision Date
Jun 25, 2018
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 878.5030
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The SafePath Suturing System is intended for use in placement of a silk suture in the skin and subcutaneous tissues.
Device Story
The SafePath Suturing System is a manually operated, hand-held device pre-loaded with a 30-inch, USP size 2-0, silicone-coated, braided black silk suture swaged onto a 1/2 circle, 26 mm reverse cutting needle. The device is used by clinicians to place sutures in skin and subcutaneous tissues. Upon manual actuation, the device places a single stitch through the tissue; the needle is then automatically captured and reset for the placement of subsequent stitches. The device is provided sterile for single-patient use. It benefits patients by facilitating efficient suture placement during surgical procedures.
Clinical Evidence
Bench testing only. The device underwent physical testing in accordance with USP standards for nonabsorbable sutures, including diameter, needle attachment, and tensile strength, meeting or exceeding all criteria. Biocompatibility testing was conducted per ISO-10993, including cytotoxicity, sensitization, irritation, systemic toxicity, hemocompatibility, pyrogenicity, and endotoxicity, with all test criteria met.
Technological Characteristics
The device consists of a manually operated, hand-held suturing mechanism pre-loaded with a braided silk suture (fibroin protein from Bombyx mori). The suture is silicone-coated, dyed black with logwood extract, and swaged to a stainless steel 1/2 circle, 26 mm reverse cutting needle. The system is provided sterile for single-patient use. It is a mechanical device with no electronic or software components.
Indications for Use
Indicated for placement of silk sutures in skin and subcutaneous tissues.
Regulatory Classification
Identification
Natural nonabsorbable silk surgical suture is a nonabsorbable, sterile, flexible multifilament thread composed of an organic protein called fibroin. This protein is derived from the domesticated species Bombyx mori (B. mori ) of the family Bombycidae. Natural nonabsorbable silk surgical suture is indicated for use in soft tissue approximation. Natural nonabsorbable silk surgical suture meets the United States Pharmacopeia (U.S.P.) monograph requirements for Nonabsorbable Surgical Suture (class I). Natural nonabsorbable silk surgical suture may be braided or twisted; it may be provided uncoated or coated; and it may be undyed or dyed with an FDA listed color additive.
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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June 25, 2018
SafePath Medical, Inc. Mr. Howard Schrayer Official Correspondent 21 Water Street - 5th Floor Amesbury, Massachusetts 01913
Re: K180701
Trade/Device Name: SafePath Suturing System Regulation Number: 21 CFR 878.5030 Regulation Name: Natural Nonabsorbable Silk Surgical Suture Regulatory Class: Class II Product Code: GAP Dated: May 24, 2018 Received: May 25, 2018
Dear Mr. Schrayer:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration. Iisting 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); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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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 mediation-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
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# Indications for Use
Form Approved: OMB No. 0910-0120 Expiration Date: 06/30/2020 See PRA Statement below.
510(k) Number (if known) K180701
Device Name SafePath™ Suturing System
Indications for Use (Describe)
The SafePath Suturing System is intended for use in placement of a silk suture in the skin and subcutaneous tissues.
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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## 510(k) SUMMARY (Per 21 CFR 807.92)
# General Company Information
·
| Name: | SafePath Medical, Inc. |
|-------------------------------|---------------------------------------------------|
| Contact: | Howard Schrayer<br>Regulatory Affairs Consultant |
| Address: | 21 Water Street - 5th Floor<br>Amesbury, MA 01913 |
| Telephone: | 978-697-3267 |
| Fax: | 978-636-4174 |
| Date Prepared | March 15, 2018 |
| General Device Information | |
| Product Name: | SafePath Suturing System |
| Classification: | Silk Suture<br>Product code: GAP - Class II |
| Regulation: | 21 CFR 878.5030 |
| Classification: | Suture Passer<br>Product code: GAB - Class I |
| Regulation: | 21 CFR 878.4800 |
| Predicate Devices | |
| SM ENG CO Ltd. | REXSIL® Silk Suture<br>[510(k) K161633] |
| Ethicon, Inc. | USP non-absorbable silk suture<br>PMA N11397 |
| Louisville Laboratories, Inc. | Carter-Thomason Needle-Point Suture Passer |
[510(k) K980123]
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#### Description
The silk suture provided with the SafePath Suturing System is a nonabsorbable, sterile, surgical suture composed of the organic protein, fibroin. This protein is derived from the domesticated species Bombyx mori (B. mori) of the family Bombycidae. The silk suture is silicone coated, braided and dyed (black) with logwood extract. The silk suture meets all requirements established by the United States Pharmacopeia (USP) for Nonabsorbable Surgical Suture and is available in USP size 2-0. The suture is provided as a 30 in. length, swaged on a single-armed ½ circle, 26 mm reverse cutting needle. The suture is pre-loaded in a hand-held, manually operated suturing device. When the suturing device is actuated a single stitch is placed through the tissue and the needle is automatically captured and reset for placement of an additional stitch.
Finished devices may be packaged individually, or in multi-unit cartons or procedure packs. The SafePath Suturing System is designed to place a suture in skin and subcutaneous tissue.
The System Includes:
(2) Suturing Device Pre-loaded with one (1) 30 in. strand of USP size 2-0 black braided silk suture Swaged on a ½ circle, 26 mm reverse cutting needle
#### Intended Use (Indications)
The SafePath Suturing System is intended for use in placement of a silk suture in the skin and subcutaneous tissues.
#### Physical Testing
Non-clinical testing has been performed in accordance USP (United States Pharmacopeia) Nonabsorbable Sutures - Diameter, Sutures- Needle Attachment, and Tensile Strength. In all cases, the USP criteria were met or exceeded.
#### Biocompatibility Testing
The biocompatibility evaluation for the SafePath Suturing System was conducted in accordance with FDA Guidance regarding the use of International Standards ISO-10993.
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The battery of testing included the following evaluations:
- Cytotoxicity .
- Sensitization .
- Irritation .
- Systemic Toxicity .
- Hemocompatibility .
- . Pyrogenicity
- Endotoxicity .
The SafePath Suturing System met the test criteria for each of the studies.
#### Substantial Equivalence
A table comparing the SafePath device with a predicate silk suture is provided below. This submission supports the position that the SafePath Suturing System is substantially equivalent to previously cleared devices, including those listed above. A number of predicate devices list the same clinical use.
| SM ENG CO Ltd. | SafePath Medical, Inc. |
|---------------------|--------------------------|
| REXSIL® Silk Suture | SafePath Suturing System |
| 510(k) K161633 | TBD |
#### Similarities and Differences
| Silk suture is indicated for use in skin and<br>subcutaneous tissue and other soft tissue<br>applications, excluding use in<br>cardiovascular and neural tissue | Silk suture is indicated for use in skin and<br>subcutaneous tissue |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------|
| Regulation: 21 CFR 878.5030 | Regulation: 21 CFR 878.5030 |
| Product code: GAP - Class II | Product code: GAP - Class II |
| Suture is provided with and without pre-<br>attached (swaged) needle | Suture is provided with pre-attached<br>(swaged) needle |
| Silk suture implant component is non-<br>absorbable. | Silk suture implant component is non-<br>absorbable. |
| Device is provided sterile for single-<br>patient-use. | Device is provided sterile for single-patient<br>use. |
| Suture is provided without a suture passer<br>component | Suture is pre-loaded in manually operated<br>suturing device |
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Suture is dyed black with logwood extract and coated with silicone for lubricity
Braided suture material is manufactured by Ashaway Line & Twine Mfg. Co.
Suture is provided with swaged, stainless steel needle
Suture passes all required tests for USP non-absorbable suture material and needle attachment
Suture is dyed black with logwood extract and coated with silicone for lubricity
Braided suture material is manufactured by Ashaway Line & Twine Mfg. Co.
Suture is provided with swaged, stainless steel needle
Suture passes all required tests for USP non-absorbable suture material and needle attachment
#### Conclusions
SafePath Medical , Inc. believes that the information provided establishes that similar legally marketed devices have been used for the same clinical application as the SafePath Medical SafePath Suturing System. The materials from which the SafePath Medical device is fabricated have an established history of use, and the devices have been developed in accordance with applicable FDA guidelines.
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.