Duralastic I (Short Term) Nasal Splinting, Wound Dressings, wound covering for gastroschisis, suture bolsters, drains, Scar Coverings, Laboratory Uses, Temporary facilitation of osteogenesis and guided tissue regeneration between the teeth and gingival margin, or external ear canal for example, temporary joing andrea and other short term uses according to the surgeon's determination. Chalastic II (Long Term) Nonreinforced - Tympanic Membrane Repair, Pural Covering . 005inch, Nasal Septal Repair, Tendon Anatomobile, na ral repair - 007inch. Correction of Strabismus .010inch, Galea Repair Shunt Anchors . 060inch. Reinforced - Facilitation of Osteogenesis 007 hon, repair of urethral strictures .007inch, Staged Repair of mphalocoel . 020inch, Repair of Orbital Floor Fractures .040inch.
Device Story
Duralastic I and II are biocompatible silicone elastomer sheets; available in reinforced (polyester mesh) and non-reinforced forms. Used by surgeons in clinical settings for various reconstructive and repair procedures. Device acts as a physical barrier or structural support in surgical sites. No electronic input/output or software involved. Benefits include biocompatibility and versatility in surgical applications.
Clinical Evidence
No clinical data provided. Substantial equivalence is based on material characterization, biocompatibility testing (meeting USP Class VI standards including Teratogenicity, Mutagenicity, Carcinogenicity, and Toxicity), and physical property testing (durometer, tensile strength, tear strength).
Technological Characteristics
Biocompatible silicone elastomer (dimethylpolysiloxane); peroxide cured. Durometer 45-55 Shore A; tensile strength 1600 psi; tear strength 190 psi; specific gravity 1.16. Available in polyester mesh reinforced or non-reinforced configurations. Sterilized via gamma radiation (2.5 - 4.2 Megarads) per ANSI/AAMI/ISO 11137-1994.
Ear, nose, and throat synthetic polymer material is a device material that is intended to be implanted for use as a space-occupying substance in the reconstructive surgery of the head and neck. The device is used, for example, in augmentation rhinoplasty and in tissue defect closures in the esophagus. The device is shaped and formed by the suregon to conform to the patient's needs. This generic type of device is made of material such as polyamide mesh or foil and porous polyethylene.
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6971480
Allied Biomedical Corporation 3850 Ramada Drive Paso Robles, CA 93446
MAY 28 1997
### TAB H
# 510 (K) SUMMARY
# PRODUCT DESCRIPTION
Duralastic I and II Silicone Elastomer Sheeting is made from a biocompatible silicone high consistency rubber, HCRP-50 made by Applied Silicone. It is available in polyester mesh reinforced and nonreinforced in a variety of thicknesses. The silicone elastomer used to make this product have met all Biocompatibility Guidelines set for by FDA for the replacement of Dow Corning Products. These biomaterial standards exceed or meet Class VI USP Standards in that they include Teratogenicity, Mutagenicity, Carcinogenicity and Toxicity Testing. These referenced material characterizations are found in Applied Master File - MAF 704
## SUBSTANTIAL EQUIVALENCE
Under it's original 510k K955368 and K955370 Duralastic I and II was found to be SE to Applied Biomaterial Technologies Duralastic Sheeting and Dow Corning's Silastic Sheeting in the Premarket Notification for the nonsterile Duralastic Sheeting. Because Duralastic Sheeting is made from Dow Corning Analogs and made in the same sizes and thicknesses for the same intended use it has been found SE to the predicate devices.
### INTENDED USES
Duralastic I and II are intended for a variety of medical purposes both in short term and long term applications. For short term application this list includes nasal splinting, wound dressings, scar coverings, temporary use in TMJ disease, temporary joint shims, and laboratory uses. For long term use this list includes nasal septal repair, orbital floor reconstruction, tympanic membrane repair, dialysis shunt anchoring, duramater repair, staged repair of omphalocoel, lengthening of extraocular muscles, tendon and nerve anastomosis, facilitation of osteogenesis or guided tissue regeneration, and other uses deemed appropriate by the using surgeon. Silicone sheeting has been in use for over 30 years and the uses are myriad. Allied Biomedical advises surgeons to consult the literature before utilizing Duralastic Sheeting for any purpose in the package inserts.
# PHYSICAL AND CHEMICAL PROPERTIES
Duralastic Sheeting is a peroxide cured rubber of a 45 - 55
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#### 510(k) Summary page 2. TAB H
Durometer hardness (Shore A). It has an elasticity of 700 percent with a tensile strength of 1600 psi and a tear strength of 190 psi (Tear Die C). The elasticity is greatly reduced in the polyester reinforced sheets. The specific gravity is 1.16. Chemically Duralastic I and II are made from HCRA-50, an Applied Silicone dimethylpolysiloxane. For details on the foregoing chemical and physical properties consult Masterfile MAF 704
机 ::
# STERILIZATION CYCLE
Duralastic I and II sheeting are sterilized via gamma radiation 2.5 - 4.2 Megarads. The validation of this cycle was performed by STI Corporation of Brea California. STI uses Sterigenics Inc. as the contract gamma radiation sterilizer. The validation uses Method 1 Testing as defined in the ANSI/AAMI/ISO 11137-1994 "Sterilization of Health Care Products - Requirements for Validation and Routine Control - Radiation Sterilization."
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Image /page/2/Picture/1 description: The image shows the seal of the Department of Health & Human Services USA. The seal is circular, with the words "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" arranged around the perimeter. In the center of the seal is an abstract image of an eagle.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
**MAY 28 1997**
Mr. Gerald Hanson Regulatory Affairs Allied Biomedical Corporation .................. 3850 Ramada Drive Paso Robles, California 93446
Re: K971480
Trade Name: Duralastic I and Duralastic II Silicone Sheeting Regulatory Class: Unclassified Product Code: MIB Dated: April 15, 1997 Received: April 23, 1997
Dear Mr. Hanson:
We have reviewed your Section 510(k) notification of intent to market the device referenced above and we have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to 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). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (Premarket Approval), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations. Title 21, Parts 800 to 895. A substantially equivalent determination assumes compliance with the Good Manufacturing Practice for Medical Devices: General (GMP) regulation (2) CFR Part 820) and that, through periodic GMP inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP regulation may result in regulatory action. In addition, FDA may publish further announcements concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any obligation you might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or regulations.
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Page 2 - Mr. Gerald Hanson
This letter will allow you to begin marketing your device as described in your 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits vour device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801) and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4595. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its internet address "http://www.fda.gov/cdrh/dsmamain.html".
Sincerely yours,
Celia M. Witten, Ph.D., M.D. Director Division of General and Restorative Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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Page_ 1 _of
Number (if known) : K971480 SI . . . K
Device Name: Duralastic I and Duralastic II Silicone Sheeting
Indications For Use:
Duralastic I (Short Term) Nasal Splinting, Wound Dressings, wound covering for gastroschisis, suture bolsters, drains, Scar Coverings, Laboratory Uses, Temporary facilitation of osteogenesis and guided tissue regeneration between the teeth and gingival margin, or external ear canal for example, temporary joing andrea and other short term uses according to the surgeon's determination.
Chalastic II (Long Term) Nonreinforced - Tympanic Membrane Repair, Pural Covering . 005inch, Nasal Septal Repair, Tendon Anatomobile, na ral repair - 007inch. Correction of Strabismus .010inch, Galea Repair Shunt Anchors . 060inch. Reinforced - Facilitation of Osteogenesis 007 hon, repair of urethral strictures .007inch, Staged Repair of mphalocoel . 020inch, Repair of Orbital Floor Fractures .040inch.
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED !
Concurrence of CDRH, Office of Device Evaluation
peralta
(Division Sign-Of)
Division of General Restorative Devigasy 71480
510(k) Number.
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OR
Over - The - Counter Use
(Optional Format 1-2-96)
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Learn the FDA Browser
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.