K970660 · Derma Sciences, Inc. · KMF · Aug 12, 1997 · General Hospital
Device Facts
Record ID
K970660
Device Name
DERMAGRAN WOUND MANAGEMENT SYSTEM
Applicant
Derma Sciences, Inc.
Product Code
KMF · General Hospital
Decision Date
Aug 12, 1997
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 880.5090
Device Class
Class 1
Attributes
Therapeutic
Indications for Use
Dermagran® Wound Management System (System), when applied to the wound provides a wound cleanser and primary cover and/or filler for wound deficiencies. The System absorbs exudate and creates a moist, mildly acidic wound environment. The moist environment created by the System is conducive to wound healing and autolytic debridement. The System is useful in the management of various skin injuries which result in lacerations, abrasions, post-surgical wounds, skin ulcerations (pressure, diabetic, venous stasis), surgical incisions, and partial thickness burns.
Device Story
Dermagran Wound Management System combines two components: Dermagran Wound Cleanser with Zinc and Dermagran-B Hydrophilic Ointment. System functions as a wound cleanser and primary cover/filler for wound deficiencies; absorbs exudate; maintains moist, mildly acidic wound environment to facilitate autolytic debridement. Used in clinical settings for management of various skin injuries. Applied topically by healthcare providers. Benefits include creation of environment conducive to healing. System is not a treatment or cure for wounds; not for use on third-degree burns.
Clinical Evidence
Bench testing included acute and sub-chronic toxicity studies in rabbits and delayed contact hypersensitivity testing in guinea pigs; no toxicity or hypersensitivity observed. Human volunteer testing showed no significant dermal sensitivity. Clinical studies demonstrated the system provides the same benefit as the individual predicate devices.
Technological Characteristics
System consists of a wound cleanser and a hydrophilic ointment. Materials and formulations are identical to previously cleared predicate devices. No electronic, mechanical, or software components. Not an artificial skin or long-term dressing.
Indications for Use
Indicated for management of skin injuries including lacerations, abrasions, post-surgical wounds, surgical incisions, partial thickness burns, and skin ulcerations (pressure, diabetic, venous stasis). Contraindicated for third-degree burns.
Regulatory Classification
Identification
A liquid bandage is a sterile device that is a liquid, semiliquid, or powder and liquid combination used to cover an opening in the skin or as a dressing for burns. The device is also used as a topical skin protectant.
{0}
K970660
AUG 12 1997
# 510(k) PUBLIC SUMMARY
## Submitter:
Derma Sciences, Inc.
121 West Grace Street
Old Forge, PA 18518
Phone: 717-457-1232
Fax: 717-457-1793
Contact Person: Mary Clark, RN, PA-C
Director of Scientific Affairs
Date Summary Prepared: February 4, 1997
Name of the Device: Dermagran Wound Management System
Identification of Predicate Devices: Dermagran Wound Cleanser with Zinc: K945802 and K954743
Dermagran-B Hydrophilic Wound Ointment: K944491, K954739 and K963603
## Description of the Device:
Dermagran Wound Management System (System) contains two components, Dermagran Wound Cleanser with Zinc and Dermagran-B Hydrophilic Ointment. The System, when applied to the wound provides a wound cleanser and primary cover and/or filler for wound deficiencies. The System absorbs exudate and creates a moist, mildly acidic wound environment. The moist environment created by the System is conducive to wound healing and autolytic debridement.
The System is useful in the management of various skin injuries which result in lacerations, abrasions, post-surgical wounds, skin ulcerations (pressure, diabetic, venous stasis), surgical incisions, and partial thickness burns.
00/20·d
22:01 566-30-004
{1}
K970660
## Intended Use:
Dermagran® Wound Management System (System), when applied to the wound provides a wound cleanser and primary cover and/or filler for wound deficiencies. The System absorbs exudate and creates a moist, mildly acidic wound environment. The moist environment created by the System is conducive to wound healing and autolytic debridement.
The System is useful in the management of various skin injuries which result in lacerations, abrasions, post-surgical wounds, skin ulcerations (pressure, diabetic, venous stasis), surgical incisions, and partial thickness burns.
## Comparison of device characteristics to predicate:
Derma Sciences, Inc. presently markets the predicate devices, Dermagran Wound Cleanser with zinc and Dermagran-B Hydrophilic Wound Ointment as separate products. The Dermagran Wound Cleanser with zinc is intended to cleanse wound prior to being covered with a dressing and the Dermagran-B Hydrophilic Wound Ointment is used as an occlusive, hydrophilic dressing to cover dermal wounds. Both products are indicated for various wounds such as; dermal ulcers, surgical wounds, abrasions, etc. The System, when applied to the wound provides a wound cleanser and primary cover and/or filler for wound deficiencies. The System absorbs exudate and creates a moist, mildly acidic wound environment. The moist environment created by the System is conducive to wound healing and autolytic debridement. These are the same characteristics provided by the predicates.
There is no difference in the design or formulation of the components from that which is described in K945802, K944491, K954739, K954743, K963603.
Labeling of the Dermagran Wound Management System contains the same indications as the predicates.
P. 03/04
25:01 4661-50-005
{2}
K970660
TOTAL P.04
Testing for the Dermagran Wound Management System:
The components of the Dermagran Wound Management System were tested to determine the acute and sub-chronic toxicity in rabbits. The results from these studies indicated that the components did not produce any toxicity to the rabbits. Delayed contact hypersensitivity was determined in the guinea pig model. Results from this test did not indicate any signs of delayed hypersensitivity from components of the Dermagran Wound Management System.
Human volunteers were tested for dermal sensitivity to the components of the Dermagran Wound Management System. Results from this test did not indicate any significant signs of sensitivity from the components.
Finally, several clinical studies were preformed which demonstrated that the components when used as a system provide the same benefit as the predicate devices.
Conclusion:
Based on the indications for use, the materials used in the device, the performance characteristics it is concluded that the Dermagran Wound Management System is substantially equivalent to Dermagran Wound Cleanser with Zinc and Dermagran-B Hydrophilic Wound Ointment.
P.04/04
10:33
{3}
DEPARTMENT OF HEALTH & HUMAN SERVICES
Public Health Service
Food and Drug Administration
9200 Corporate Boulevard
Rockville MD 20850
Derma Sciences, Inc.
c/o Kenneth Palmer, Ph.D.
Senior Technical Advisor
Quintiles-Medical Technology Consultants
15825 Shady Grove Road, Suite 90
Rockville, Maryland 20850
AUG 12 1997
Re: K970660
Dermagran® Wound Management System
Regulatory Class: Unclassified
Product Code: KMF
Dated: June 25, 1997
Received: June 27, 1997
Dear Dr. Palmer:
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 (the Act). You may, therefore, market your device subject to the general controls provisions of the Federal Food, Drug, and Cosmetic Act (Act) and the following limitations:
1. This device may not be labeled for use on third degree burns.
2. This device may not be labeled as having any accelerating effect on the rate of wound healing or epithelization.
3. This device may not be labeled as a long-term, permanent, or no-change dressing, or as an artificial (synthetic) skin.
4. This device may not be labeled as a treatment or a cure for any type of wound.
The labeling claims listed above would be considered a major modification in the intended use of the device and would require a premarket notification submission (21 CFR 807.81).
{4}
Page 2 - Kenneth Palmer, Ph.D.
The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practices, 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 (CFR), Title 21, Parts 800 to 895. A substantially equivalent determination assumes compliance with the Good Manufacturing Practices (GMP) for Medical Devices: General GMP regulation (21 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.
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 your 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
{5}
INDICATIONS FOR USE
510(k) Number
K970660
Device Name
Dermagran® Wound Management System
Indications for Use
Dermagran® Wound Management System (System), when applied to the wound provides a wound cleanser and primary cover and/or filler for wound deficiencies. The System absorbs exudate and creates a moist, mildly acidic wound environment. The moist environment created by the System is conducive to wound healing and autolytic debridement.
The System is useful in the management of various skin injuries which result in lacerations, abrasions, post-surgical wounds, skin ulcerations (pressure, diabetic, venous stasis), surgical incisions, and partial thickness burns.
Concurrence of CDRH, Office of Device Evaluation (ODE)
☑ Prescription Use (per 21 CFR 801.109)
☐ Over-the Counter Use

TOTAL P.04
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
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.