The exsalt™ SD7 Wound Dressing is indicated for the management of partial and full thickness wounds, including decubitus ulcers, venous stasis ulcers, diabetic ulcers, first and second degree burns, grafts and donor sites, or other acute or chronic wounds. The dressing may be used over debrided and grafted wounds.

Device Description

Exciton Technologies Inc. has developed the exsalt™ technology, a proprietary chemical process, which deposits oxidized silver species onto a non-woven needled polyester coated with gray Delnet® HDPE mesh layers on both sides (STRATEX®). Silver in the exsalt™ SD7 Wound Dressing inhibits microbial growth in the dressing. The concentration of the silver and oxidized silver species on the dressing is 0.4 mg/cm² (2.5% w/w). The exsalt™ SD7 Wound Dressing has been shown to be effective in vitro against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Enterococcus faecalis when they are in direct contact with the dressing. In addition, in vitro data have demonstrated that exsalt™ SD7 Wound Dressing maintains its antibacterial activity for up to 7 days against Pseudomonos aeruginosa and Staphylococcus aureus.

AI/ML Overview

Here's a breakdown of the acceptance criteria and study information for the exsalt™ SD7 Wound Dressing based on the provided text:

1. Table of Acceptance Criteria and Reported Device Performance

Acceptance Criteria Category	Specific Criteria/Test	Reported Device Performance
Physical Characteristics	Absorptive Capacity	Same as predicate device (K083870)
	Moisture Content	Same as predicate device (K083870)
	Drop Penetration	Not explicitly stated as "same as predicate," but implied as acceptable
	Adhesion	Same as predicate device (K083870)
	Abrasion	Same as predicate device (K083870)
	Silver Content	Specific amount: 0.4 mg/cm² (2.5% w/w) (implied as acceptance criteria met)
Biocompatibility	Biocompatibility (toxicity, irritation, sensitization)	No new safety concerns relative to biocompatibility; predicate was non-toxic, non-irritant, non-sensitizing
Antimicrobial Efficacy	Anti-microbial (Bacterial) Effectiveness (in vitro)	Effective against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Enterococcus faecalis (in direct contact)
	Bactericidal Effectiveness (in vitro, 7-day claim)	Maintains antibacterial activity for up to 7 days against Pseudomonas aeruginosa and Staphylococcus aureus
Manufacturing Process	Manufacturing changes do not affect safety or efficacy	Final product specifications remain unchanged, no concerns related to safety or effectiveness from manufacturing process change

2. Sample Size Used for the Test Set and Data Provenance

Sample Size: The document does not specify the exact sample sizes for each in-vitro test (e.g., how many dressings tested per bacterial strain, or how many iterations for physical tests). It only states that "in vitro data have demonstrated..."
Data Provenance: The studies were in vitro (laboratory-based) and conducted by the manufacturer, Exciton Technologies Inc., based in Canada. Given the context of a premarket notification, these are prospective studies conducted to support the device's claims.

3. Number of Experts Used to Establish the Ground Truth for the Test Set and Qualifications of Those Experts

This information is not provided in the document. For in-vitro studies, ground truth is typically established by the scientific methodology itself (e.g., bacterial count reduction based on established laboratory protocols), rather than by expert consensus on individual "cases."

4. Adjudication Method for the Test Set

This information is not applicable as the studies described are in-vitro efficacy and physical performance tests, not human-reader-based assessments requiring adjudication.

5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance

No, an MRMC comparative effectiveness study was not done. This device is a wound dressing, and the studies described are primarily in-vitro performance and biocompatibility assessments, not studies involving AI-assisted human readers.

6. If a Standalone (i.e. algorithm only without human-in-the-loop performance) was done

Not applicable. This device is a physical wound dressing and does not involve an algorithm or AI.

7. The Type of Ground Truth Used

The ground truth for the performance tests (e.g., antimicrobial activity, physical properties) was established through laboratory-based, scientific measurement and observation using validated protocols (e.g., bacterial culture methods for antimicrobial efficacy, standardized tests for absorptive capacity). For biocompatibility, it was based on standardized biological reactivity tests.

8. The Sample Size for the Training Set

Not applicable. This device does not involve machine learning or AI models, therefore there is no "training set."

9. How the Ground Truth for the Training Set Was Established

Not applicable, as there is no training set for this device.

Summary

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K103067 page

Exciton Technologies Inc. exsalt™ SD7 Wound Dressing (7-Day Claim)

Premarket Notification

510(k) Summary for exsalt™ SD7 Wound Dressing MAY 2 0 2011

1. Trade (Proprietary) Name

exsalt™ SD7 Wound Dressing

2. Common Name

Wound or Burn Dressing

3. Contact Information

Mr. Rod Precht Contact: President and Founder
RPrecht@excitontech.com Email: Phone: (780) 248-5868 (780) 248-5878 Fax:
Address: Exciton Technologies Inc. Suite 4232-10230 Jasper Avenue Edmonton, Alberta T5J 4P6 Canada

Date of 510(k) Summary Preparation: October 1, 2010

4. Device Classification & Panel

A final classification for wound/burn dressings has not been implemented; Class II has been proposed by the General & Plastic Surgery Devices Panel.

5. Predicate Device(s)

exsalt™ SD7 Wound Dressing (K083870)

6. Device Description

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K103067 Page
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Exciton Technologies Inc. exsalt™ SD7 Wound Dressing (7-Day Claim)

Premarket Notification

Dressing has been shown to be effective in vitro against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Enterococcus faecalis when they are in direct contact with the dressing. In addition, in vitro data have demonstrated that exsalt™ SD7 Wound Dressing maintains its antibacterial activity for up to 7 days against Pseudomonos aeruginosa and Staphylococcus aureus.

7. Intended Use

exsalt™ SD7 Wound Dressing is indicated for the management of partial and full thickness wounds, including decubitus ulcers, venous stasis ulcers, diabetic ulcers, first and second degree burns, grafts and donor sites, or other acute or chronic wounds. The dressing may be used over debrided and grafted wounds.

8. Summary of Substantial Equivalence

The labeled indications and directions for use of the exsalt™ SD7 Wound Dressing are equivalent to those of the predicate device, exsalt™ SD7 Wound Dressing (K083870), with the additional claim that it maintains its antibacterial activity for up to 7 days as shown in vitro against Pseudomonas aeruginosa and Staphylococcus aureus. The design, materials, and manufacturing methods are similar to those of the predicate device, exsalt™ SD7 Wound Dressing (K083870), and therefore do not raise any new issues concerning safety or effectiveness.

a) Summary of Technological Characteristics

The exsalt™ SD7 Wound Dressing consists of 2 outer layers of HDPE with an inner layer of absorbent polyester which are all silver-coated. The skin-contacting materials in both the exsalt™ SD7 Wound Dressing and the predicate are the same.

For the predicate device (K083870), silver was deposited on the exsalt™ SD7 Wound Dressing using an aqueous chemistry (emersion) approach. This application process has been changed to an aqueous chemistry (direct coating) of the silver onto the substrate. This method of application of the silver to the dressing does not affect the efficacy or safety of the device as the final product specifications remain unchanged. exsalt™ SD7 Wound Dressing is sterilized by gamma irradiation.

In summary, the change in the exsalt™ SD7 Wound Dressing manufacturing process does not raise any concerns related to safety or effectiveness as compared to the predicate device (K083870).

b) Summary of Performance Data

The following performance tests were conducted on the exsalt™ SD7 Wound Dressing:

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Exciton Technologies Inc.
exsalt™ SD7 Wound Dressing (7-Day Claim)

K103067 page
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Premarket Notification

Absorptive Capacity ●
. Moisture Content
Drop Penetration .
Adhesion .
Abrasion ●
. Silver Content
Anti-microbial (Bacterial) Effectiveness ●
Bactericidal Effectiveness
Biocompatibility .
Biological Reactivity �

Absorptive capacity, moisture content, adhesion, and abrasion characteristics are the same as the predicate.

The exsalt™ SD7 Wound Dressing showed no new safety concerns relative to biocompatibility. The predicate was shown to be non-toxic, non-irritant, and did not elicit a sensitization response.

The exsalt™ SD7 Wound Dressing (K083870) has been shown to be effective in vitro against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Enterococcus faecalis. In addition, in vitro data have demonstrated that exsalt™ SD7 Wound Dressing maintains its antibacterial activity for up to 7 days against Pseudomonas aeruginosa and Staphylococcus aureus.

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Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo features a stylized depiction of an eagle or bird-like figure with outstretched wings. The words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" are arranged in a circular pattern around the bird.

Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002

MAY 2 0 2011

Exciton Technologies, Inc. % Mr. Rod Precht 10230 Jasper Avenue, Suite 4232 Edmonton, Alberta T5J 4P6 Canada

Re: K103067

Trade/Device Name: exsalt™ SD7 Wound Dressing Regulatory Class: Unclassified Product Code: FRO Dated: April 07, 2011 Received: April 11, 2011

Dear Mr. Precht,

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, listing 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 (reporting of medical

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Page 2 - Mr. Rod Precht

CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR 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/Reportal?roblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.

You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm.

Mark N. Melkerson Director Division of Surgical, Orthopedic and Restorative Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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exsalt™ SD7 Wound Dressing Indications for Use

510(k) Number (if known): K103067

Device Name: exsalt™ SD7 Wound Dressing

Indications For Use:

Prescription Use X (Part 21 CFR 801 Subpart D) AND/OR

Over-The-Counter Use (21 CFR 807 Subpart C)

(PLEASE DO NOT WRITE BELOW LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of Device Evaluation (ODE)

David Kieu for MXM
(Division Sign Off)

(Division Sign-Off) Division of Surgical, Orthopedic, and Restorative Devices

510(k) Number K103067

Regulation Number and Section

N/A