K041984 · Best Sanitizers, Inc. · MED · May 11, 2005 · General Hospital
Device Facts
Record ID
K041984
Device Name
ACECIDE HIGH-LEVEL DISINFECTANT AND STERILANT
Applicant
Best Sanitizers, Inc.
Product Code
MED · General Hospital
Decision Date
May 11, 2005
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 880.6885
Device Class
Class 2
Indications for Use
Acecide High-Level Disinfectant and Sterilant is intended to be used for automated sterilization or high-level disinfection of clean, heat sensitive, critical and semisterifical medical devices that are not compatible with other sterilization or highlevel disinfection processes that can be biologically monitored. Acecide High-Level Disinfectant and Sterilant should be used under the following contact conditions: Sterilization: 5 hours, 25°C, 1900 ppm Minimum Recommended Concentration of Peracetic Acid; High-Level Disinfection: 5 minutes, 25°C, 1900 ppm Minimum Recommended Concentration of Peracetic Acid. Acecide Peracetic Acid Test Strips are intended for verifying the minimum recommended concentration of peracetic acid in Acecide High-Level Disinfectant and Sterilant during reuse.
Device Story
Acecide High-Level Disinfectant and Sterilant is a two-part liquid germicide (peracetic acid and hydrogen peroxide) used for automated reprocessing of heat-sensitive medical devices. The mechanism of action involves oxidation of sulfhydryl and sulfur bonds on microbial proteins and enzymes. The device is used in clinical settings to achieve sterilization (5 hours) or high-level disinfection (5 minutes) at 25°C. Acecide Peracetic Acid Test Strips are used to verify the minimum recommended concentration (1900 ppm) of peracetic acid during reuse. The system ensures effective microbial reduction (sporicidal, tuberculocidal, virucidal, fungicidal, bactericidal) while maintaining material compatibility with endoscopes and other devices. Clinical benefit includes safe, effective reprocessing of heat-sensitive instruments that cannot undergo standard thermal sterilization.
Clinical Evidence
Bench testing included AOAC sporicidal, tuberculocidal, virucidal, fungicidal, and bactericidal assays. Simulated-use testing performed on endoscopes confirmed efficacy as a sterilant and high-level disinfectant. Biocompatibility testing (cytotoxicity, hemolysis, acute toxicity) confirmed patient safety. Material compatibility testing confirmed suitability for endoscopes over their estimated lifetime. Clinical testing of used endoscopes confirmed that chemical residues after rinsing were not significant.
Technological Characteristics
Two-part liquid chemical germicide; active ingredients: peracetic acid and hydrogen peroxide. Packaging: High Density Polyethylene (HDPE) bottles. Mechanism: Oxidative microbial inactivation. Includes chemical test strips for concentration verification (1900 ppm MRC).
Indications for Use
Indicated for automated sterilization or high-level disinfection of clean, heat-sensitive, critical, or semi-critical medical devices incompatible with other biologically monitorable sterilization/disinfection processes.
Regulatory Classification
Identification
A liquid chemical sterilant/high level disinfectant is a germicide that is intended for use as the terminal step in processing critical and semicritical medical devices prior to patient use. Critical devices make contact with normally sterile tissue or body spaces during use. Semicritical devices make contact during use with mucous membranes or nonintact skin.
Special Controls
*Classification.* Class II (special controls). Guidance on the Content and Format of Premarket Notification (510(k)) Submissions for Liquid Chemical Sterilants/High Level Disinfectants, and user information and training.
Predicate Devices
Peract® 20 Liquid Sterilant/Disinfectant
Medivators Rapicide™ High Level Disinfectant and Sterilant
Submission Summary (Full Text)
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## MAY 1 1 2005
K05//984
## ACECIDE™ HIGH-LEVEL DISINFECTANT AND STERILANT AND ACECIDE™ PERACETIC ACID TEST STRIPS
510(k) Summary of Safety and Effectiveness
| <b>Sponsor/Applicant:</b> |
|---------------------------|
| <b>Address:</b> |
Best Sanitizers, Inc. P.O. Box 1360 17320 Penn Valley Drive Penn Valley, CA 95946 USA
Contact:
Mohammed R. Hay Director, Manufacturing 888-225-3267 Fax: 530-432-0752
| Submission Correspondent: | Richard M. Ormsbee |
|---------------------------|-------------------------------------|
| Address: | Minntech Corporation |
| | 14605 28 <sup>th</sup> Avenue North |
| | Minneapolis, MN 55428 |
| | 763-551-2689 |
| | Fax: 763-509-1601 |
Best Sanitizers has supplied the following information to the U.S. Food and Drug Administration to support substantial equivalency of the Acecide™ High-Level Disinfectant and Sterilant to other sterilants currently in distribution in the United States.
#### Device Description 1.
Acecide High-Level Disinfectant and Sterilant is a germicide that requires the combination of two parts, Solution 1 and Solution 2, within the Solution 2 bottle. The product is used full strength without dilution. It is packaged in two High Density Polyethylene bottles.
The active ingredients in Acecide High-Level Disinfectant and Sterilant are peracetic acid and hydrogen peroxide. As discussed in Block's' article, the mechanism of microbial action is believed to be oxidizing sulthydryl and sulfur bonds on proteins and enzymes, particularly in the cell walls.
<sup>1</sup> Block, Seymour S., Disinfection, Sterilization and Preservation; Chapter 9 Peroxygen Compounds (pages 167-181), Lea & Febiger, 1991.
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Acecide Peracetic Acid Test Strops are provided to verify that the minimum receide Fordection, 1900 ppm peracetic acid (PAA) of Acecide High-Level Disinfectant and Sterilant is present.
#### Intended Use 2.
Acecide High-Level Disinfectant and Sterilant is intended to be used for automated sterilization or high-level disinfection of clean, heat sensitive, critical and semisterifical medical devices that are not compatible with other sterilization or highlevel disinfection processes that can be biologically monitored.
Acecide High-Level Disinfectant and Sterilant should be used under the following contact conditions:
| | Time | Temperature | Minimum<br>Recommended<br>Concentration of<br>Peracetic Acid |
|----------------------------|-----------|-------------|--------------------------------------------------------------|
| Sterilization | 5 hours | 25°C | 1900 ppm |
| High-Level<br>Disinfection | 5 minutes | 25°C | 1900 ppm |
Acecide Peracetic Acid Test Strips are intended for verifying the minimum recommended concentration of peracetic acid in Acecide High-Level Disinfectant and Sterilant during reuse.
### Comparison to Another Device in Commercial Distribution Within the United 3. States
Acecide High-Level Disinfectant and Sterilant is comparable in its intended use to other liguid sterilants currently on the market in the United States. Acecide High-Level Disinfectant and Sterilant is similar in use and product claims to Minntech's Peract® 20 Liquid Sterilant/Disinfectant and Medivators Rapicide™ High Level Disinfectant and Sterilant.
#### Summary 4.
Best Sanitizers has performed testing to demonstrate that Acecide High-Level Disinfectant and Sterilant and Acecide Peracetic Acid Test Strips are safe and effective when used according to the respective instructions for use.
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#### Efficacy Testing 5.
The following efficacy testing was performed on Acecide High-Level Disinfectant The following cirrealy the following conditions: at the minimum of its and oternant with an or attessed to the end of its reuse period and at its MRC (1900 ppm PAA). The testing showed the product to be sporicidal, tuberculocidal, virucidal, fungicidal and bactericidal.
AOAC sporicidal testing was performed on three lots of Acecide High-Level Disinfectant and Sterilant with the above noted conditions. Sporicidal simulateduse testing was also performed on endoscopes to show efficacy as a sterilant on actual devices.
Tuberculocidal testing was performed on three lots of Acecide High-Level Disinfectant and Sterilant with the above noted conditions. Tuberculocidal simulated-use testing was also performed on endoscopes to show efficacy as a high-level disinfectant on actual devices.
Acecide High-Level Disinfectant and Sterilant was determined to be virucidal when tested against Poliovirus Type 2, Human Immunodeficiency Virus Type 1 and Hernes simplex virus Type 1. Acecide High-Level Disinfectant and Sterilant was considered fungicidal when tested against Trichophyton mentagrophytes . Was Collution testing showed the efficacy of Acecide High-Level Disinfectant and Sterilant against Staphylococcus aureus, Salmonella choleraesuis and Pseudomonas aeruginosa.
Clinical testing of used endoscopes further supports the efficacy of Acecide High-Level Disinfectant and Sterilant when used under the directions of the Directions for Use. Testing determined residues of Acecide High-Level Disinfectant and Sterilant remaining on endoscopes after sterilization or high-level disinfection and rinsing were not significant.
#### Biocompatibility Testing 6.
Standard patient toxicity testing evaluated the effect of residues. Testing included: cytotoxicity, hemolysis and acute toxicity testing.
Biocompatibility testing has demonstrated that Acecide High-Level Disinfectant and Sterilant is safe for the patient when used according to the Directions for Use.
#### Material Compatibility 7.
Material compatibility testing demonstrates that Acecide High-Level Disinfectant and Sterilant can be used with endoscopes and a wide range of materials. Testing included soaking and reprocessing of common materials and endoscopes for the estimated lifetime of the items.
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Material compatibility testing has demonstrated that Acecide High-Level Maichar compatibility tecting may stible with the materials and devices listed and used according to the Directions for Use.
#### Stability 8.
Stability studies were performed according to the FDA Content and Format of Statinty studios .vere p[510(k)] Submissions for Liquid Chemical Sterilants/High I remarket Notification for of the posses (1-3-2000). Studies demonstrated that the chemical and physical stability of Acecide High-Level Disinfectant and Sterilant were within specifications at the labeled expiration date.
#### Test Strip 9.
Acecide Peracetic Acid Test Strips demonstrated the ability to consistently and accurately test the germicide at its MRC of 1900 ppm peracetic acid when used according to the Directions for Use.
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Image /page/4/Picture/1 description: The image shows the seal of the Department of Health and Human Services (HHS) of the United States. The seal features a stylized eagle with three lines representing its body and wings. The text "DEPARTMENT OF HEALTH AND HUMAN SERVICES, USA" is arranged in a circular pattern around the eagle.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
MAY 1 1 2005
Best Sanitizers, Incorporated C/O Mr. Richard M. Ormsbee Senior Regulatory Affairs Specialist Minntech Corporation 14605 28th Avenue North Minneapolis, Minnesota 55447-4822
Re: K041984
Ko+176+
Trade/Device Name: Acecide™ High-Level Disinfectant and Sterilant Regulation Number: 880.6885 Regulation Name: Liquid Chemical Sterilants/ High Level Disinfectants Regulatory Class: II Product Code: MED Dated: March 29, 2005 Received: March 30, 2005
Dear Mr. Ormsbee:
We have reviewed your Section 510(k) premarket notification of intent to market the device we have reviewed your becater mined the device is substantially equivalent (for the relerenced above and have acternines re) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device interstate comments prior to they are reclassified in accordance with the provisions of Ameliunients, or to actives that in tic Act (Act) that do not require approval of a premarket the rederal I vou, Drug, und Ocenners, therefore, market the device, subject to the general approvisions of the Act. The general controls provisions of the Act include confors provisions of the rist ston, listing of devices, good manufacturing practice, lequirements roohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III If your device is classinod (See as 10) is a may be regulations affecting (PMA), it may of subject to sach adame fraderal Regulations, Title 21, Parts 800 to 898. In your device can be found in the Souce of Peech one of the Federal Register.
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Page 2 - Mr. Ormsbee
Please be advised that FDA's issuance of a substantial equivalence determination does not I lease to act rood a determination that your device complies with other requirements moun that 1 Dr mas muse statutes and regulations administered by other Federal agencies. or the receively with all the Act's requirements, including, but not limited to: registration r ou must comply with art 807); labeling (21 CFR Part 801); good manufacturing practice and fisting (21 er read on the quality systems (QS) regulation (21 CFR Part 820); and if requirements as bet form nroduct radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
This letter will allow you to begin marketing your device as described in your Section 510(k) This letter will anow yourse sogger and all equivalence of your device to a premarket notifed.com - 11.0 evice 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), If you desire specific accorpliance at (240) 276-0115. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). You may obtain other general information on your responsibilities under the Act from the may obtain of Small Manufacturers, 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,
Shiu-Ling, Ph.D.
Chiu Lin, Ph.D. Director Division of Anesthesiology, General Hospital, Infection Control and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indications for Use
0(k) Number (if known): Kc 4 1984
Device Name: Acecide™ High-Level Disinfectant and Stcrilant
ndications for Use:
cecide High-Level Disinfectant and Sterilant is intended to be used for the automated Accede High-Level disinfection of clean, heat sensitive, critical or semi-critical medical steritzation or mgn 1070 atballevith other sterilization or high-level disinfection processes that an be biologically monitored.
ecide High-Level Disinfectant and Sterilant should be used under the following contact ditions:
| | Time | Temperature | Minimum<br>Recommended<br>Concentration of<br>Peracetic Acid |
|----------------------------|-----------|-------------|--------------------------------------------------------------|
| Sterilization | 5 hours | 25°C | 1900 ppm |
| High-Level<br>Disinfection | 5 minutes | 25°C | 1900 ppm |
cecide Peracetic Acid Test Strips are intended for verifying the minimum recommended oncentration of peracetic acid in Acecide High-Level Disinfectant and Sterilant during reuse.
Prescription Use (Part 21 CFR 801 Subpart D)
AND/OR
× Over-The-Counter Use (21 CFR 801 Subpart C)
LEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Shadi T. Mughrabi, MD
Jusion Sign-Off wision of Anesthesiology, General Hospital, Intection Control, Dental Devices
Page 1 of 1
510(k) Number: K041984
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.