← Product Code FRO · K211123

# LUOFUCON Silver Wound Gel, LUOFUCON Silver Antimicrobial Wound Gel (K211123)

_Huizhou Foryou Medical Devices Co., Ltd. · FRO · Apr 22, 2022 · SU · SESE_

**Canonical URL:** https://fda.innolitics.com/device/K211123

## Device Facts

- **Applicant:** Huizhou Foryou Medical Devices Co., Ltd.
- **Product Code:** FRO
- **Decision Date:** Apr 22, 2022
- **Decision:** SESE
- **Submission Type:** Traditional
- **Device Class:** Class U
- **Review Panel:** SU
- **Attributes:** Therapeutic

## Intended Use

Prescription: LUOFUCON® Silver Wound Gel is under the medical supervision of a healthcare professional for the management of 1st and 2nd degree burns, wounds such as stasis ulcers, pressure ulcers, lacerations, abrasions, skin tears, surgical incision sites, device insertion site wounds, graft sites, and donor sites. OTC: LUOFUCON® Silver Antimicrobial Wound Gel is indicated for the topical management of minor cuts, minor lacerations and minor burns.

## Device Story

Sterile, water-based amorphous gel; composed of hydrophilic polymer and silver compound. Supplied in collapsible polypropylene tube with screw cap. Applied topically to wounds to maintain moist environment; silver compound acts as preservative to inhibit microorganism growth within gel during shelf storage. Used in clinical settings under medical supervision (Rx) or by patients for minor wounds (OTC). Output is physical barrier/moist environment; aids wound healing process; benefits patient by protecting wound site and managing moisture.

## Clinical Evidence

No clinical studies conducted. Evidence includes bench testing (absorbency, pH, loss on drying, preservative effectiveness per USP <51>), biocompatibility testing (cytotoxicity, sensitization, irritation, systemic toxicity, implantation, material-mediated pyrogenicity per ISO 10993), and a porcine wound healing study showing no inhibition of healing or adverse reactions.

## Technological Characteristics

Water-based amorphous gel; ingredients: purified water, Carbopol, glycerol, polyethylene oxide, polyvinyl alcohol, silver compound. pH 5.0-7.5. Silver content 0.007%-0.012% w/w. Moisture donation ≥10%, absorption <10%. Sterile. Packaging: polypropylene tube.

## Predicate Devices

- AcryDerm Antimicrobial Silver Gel Wound Dressing Model #B / OTC: AcryDerm Wound Gel Model #B ([K083103](/device/K083103.md))

## Reference Devices

- ASAP OTC Wound Dressing Gel ([K140483](/device/K140483.md))

## Submission Summary (Full Text)

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April 22, 2022

Huizhou Foryou Medical Devices CO., Ltd. Huiqi Huang R&D Engineer North Shangxia Rd., Dongjiang Hi-tech Industry Park Huizhou. Guangdong 516005 China

Re: K211123

Trade/Device Name: LUOFUCON Silver Wound Gel, LUOFUCON Silver Antimicrobial Wound Gel Regulatory Class: Unclassified Product Code: FRO Dated: January 24, 2022 Received: February 2, 2022

Dear Huiqi Huang:

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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies.combination product submissions. 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 of medical device-related adverse events) (21 CFR 803) for

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devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

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 https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.

For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrl-learn). 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 (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).

Sincerely.

for Julie Morabito, Ph.D. Assistant Director DHT4B: Division of Infection Control and Plastic Surgery Devices OHT4: Office of Surgical and Infection Control Devices Office of Product Evaluation and Ouality Center for Devices and Radiological Health

Enclosure

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#### DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration

### Indications for Use

510(k) Number (if known) K211123

#### Device Name

LUOFUCON® Silver Wound Gel (Prescription use) LUOFUCON® Silver Antimicrobial Wound Gel (OTC use)

#### Indications for Use (Describe)

Prescription:

LUOFUCON® Silver Wound Gel is under the medical supervision of a healthcare professional for the management of 1st and 2nd degree burns, wounds such as stasis ulcers, pressure ulcers, lacerations, abrasions, skin tears, surgical incision sites, device insertion site wounds, graft sites, and donor sites.

#### OTC:

LUOFUCON® Silver Antimicrobial Wound Gel is indicated for the topical management of minor cuts, minor lacerations and minor burns.

Type of Use (Select one or both, as applicable)

> Prescription Use (Part 21 CFR 801 Subpart D)

X Over-The-Counter Use (21 CFR 801 Subpart C)

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K211123 Page 1 of 7

### 510(k) Summary

This 510(k) Summary information is being submitted in accordance with Title 21, CFR Section 807.92.

### 1. SUBMITTER:

Huizhou Foryou Medical Devices Co., Ltd.

Address: No.1 Shangxia North Road., Dongjiang Hi-tech Industry Park, Huizhou,

Guangdong, China. Phone: +86-0752-5302185 Fax: +86-0752-5302020 Contact Person: Huiqi Huang Date Prepared: April 12th, 2021

### 2. SUBJECT DEVICE

Device Name: LUOFUCON® Silver Wound Gel (Prescription use), LUOFUCON® Silver Antimicrobial Wound Gel (OTC use) Common Name or Usual Name: Silver Wound Gel Classification Name: Dressing, Wound, Drug Regulatory Class: Unclassified Product Code: FRO

### 3. PREDICATE DEVICE:

510(k) Number: K083103

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K211123 Page 2 of 7

Product Name: AcryDerm Antimicrobial Silver Gel Wound Dressing Model #B, OTC: AcryDerm Wound Gel Model #B Manufacturer: AcryMed, Inc.

### 4. REFERENCE DEVICE:

510(k) Number: K140483 Product Name: ASAP OTC Wound Dressing Gel Manufacturer: ABL Medical, LLC

### 5. DEVICE DESCRIPTION:

LUOFUCON® Silver Wound Gel /LUOFUCON® Silver Antimicrobial Wound Gel is a sterile, water-based amorphous gel composed of hydrophilic polymer and silver compound. The gel helps to maintain a moist wound environment. The silver compound acts as a preservative to inhibit the growth of microorganisms in the gel during shelf storage.

LUOFUCON® Silver Wound Gel /LUOFUCON® Silver Antimicrobial Wound Gel is supplied in a tube (collapsible, polypropylene tube, sealed on one end and fitted with a screw cap on the other end).

### 6. INDICATIONS FOR USE:

### Prescription:

LUOFUCON® Silver Wound Gel is under the medical supervision of a healthcare professional for the management of 1st and 2nd degree burns, wounds such as stasis ulcers, pressure ulcers, diabetic ulcers, lacerations, abrasions, skin tears,

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K211123 Page 3 of 7

surgical incision sites, device insertion site wounds, graft sites, and donor sites. OTC:

LUOFUCON® Silver Antimicrobial Wound Gel is indicated for the topical management of minor abrasions, minor cuts, minor lacerations and minor burns.

### 7. COMPARISON WITH THE PREDICATE DEVICE

LUOFUCON® Silver Wound Gel /LUOFUCON® Silver Antimicrobial Wound Gel and the predicate device/reference device consist of different ingredients. However, they have the same intended use, similar designs and performance, and meet the biocompatibility requirements.

The table below compares the subject device to the predicate and reference devices.

| Item                         | Subject Device<br>(K211123)                                                                                                                                                                                                                   | Predicate Device<br>(K083103)                                                                                                                                                                                                                                  | Reference Device<br>(K140483)                                                                                                                                                      |
|------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Device name                  | LUOFUCON® Silver<br>Wound Gel /<br>LUOFUCON® Silver<br>Antimicrobial Wound<br>Gel                                                                                                                                                             | AcryDerm Antimicrobial<br>Silver Gel Model #B /<br>OTC: AcryDerm Wound<br>Gel Model #B                                                                                                                                                                         | ASAP OTC Wound<br>Dressing Gel                                                                                                                                                     |
| Classification<br>Regulation | Unclassified                                                                                                                                                                                                                                  | Unclassified                                                                                                                                                                                                                                                   | Unclassified                                                                                                                                                                       |
| Product Code                 | FRO                                                                                                                                                                                                                                           | FRO                                                                                                                                                                                                                                                            | FRO                                                                                                                                                                                |
| Indications for<br>Use (Rx)  | LUOFUCON® Silver<br>Wound Gel is under<br>the medical<br>supervision of a<br>healthcare professional<br>for the management of                                                                                                                 | Under the supervision<br>of a healthcare<br>professional, AcryDerm<br>Silver Antimicrobial<br>Wound Gel Model #B<br>is indicated for the                                                                                                                       | N/A                                                                                                                                                                                |
|                              | 1st and 2nd degree<br>burns, wounds such as<br>stasis ulcers, pressure<br>ulcers, diabetic ulcers,<br>lacerations, abrasions,<br>skin tears, surgical<br>incision sites, device<br>insertion site wounds,<br>graft sites, and donor<br>sites. | management of 1st and<br>2nd degree burns,<br>wounds such as stasis<br>ulcers, pressure ulcers,<br>diabetic ulcers,<br>lacerations, abrasions,<br>skin tears, surgical<br>incision sites, device<br>insertion site wounds,<br>graft sites, and donor<br>sites. |                                                                                                                                                                                    |
| Indications for<br>Use (OTC) | LUOFUCON® Silver<br>Antimicrobial Wound<br>Gel is indicated for the<br>topical management of<br>minor abrasions, minor<br>cuts, minor lacerations<br>and minor burns.                                                                         | AcryDerm Wound Gel<br>Model #B is indicated<br>for the management of<br>minor abrasions, cuts,<br>lacerations and scalds.                                                                                                                                      | ASAP OTC Wound<br>Dressing Gel is<br>indicated for the<br>topical management<br>of minor cuts,<br>lacerations,<br>abrasions, 1st and<br>2nd degree burns,<br>and skin irritations. |
| Composition                  | Purified water,<br>Carbopol, glycerol,<br>polyethylene oxide,<br>polyvinyl alcohol, silver<br>compound                                                                                                                                        | Hydrophilic polymers<br>and silver salt                                                                                                                                                                                                                        | Carbopol ETD 2020,<br>triethanolamine,<br>proprietary silver<br>hydrosol suspension                                                                                                |
| Mechanism                    | Hydrophilic polymer for<br>maintaining high<br>moisture content, ionic<br>silver for reducing<br>microorganism<br>colonization within the<br>dressing during shelf<br>storage.                                                                | Hydrophilic polymer for<br>maintaining high<br>moisture content, ionic<br>silver for reducing<br>microorganism<br>colonization within the<br>dressing during shelf<br>storage.                                                                                 | Hydrophilic polymer<br>for maintaining high<br>moisture content,<br>silver for reducing<br>microorganism<br>colonization within<br>the dressing during<br>shelf storage.           |
| Antimicrobial<br>agent       | Silver compound                                                                                                                                                                                                                               | Silver compound                                                                                                                                                                                                                                                | Element silver                                                                                                                                                                     |
|                              |                                                                                                                                                                                                                                               |                                                                                                                                                                                                                                                                |                                                                                                                                                                                    |
| Appearance                   | Colorless to light yellow, transparent to slightly cloudy                                                                                                                                                                                     | Slightly cloudy                                                                                                                                                                                                                                                | Clear to golden yellow translucent gel                                                                                                                                             |
| pH Value                     | 5.0-7.5                                                                                                                                                                                                                                       | N/A                                                                                                                                                                                                                                                            | 6.5-8.0                                                                                                                                                                            |
| Silver Content               | $0.007\%-0.012\% w/w$                                                                                                                                                                                                                         | N/A                                                                                                                                                                                                                                                            | 24ppm                                                                                                                                                                              |
| Moisture Donation            | ≥10%                                                                                                                                                                                                                                          | N/A                                                                                                                                                                                                                                                            | Greater than 5%                                                                                                                                                                    |
| Moisture Absorption          | <10%                                                                                                                                                                                                                                          | N/A                                                                                                                                                                                                                                                            | Greater than 5%                                                                                                                                                                    |
| Preservative Performance     | USP <51> preservative effectiveness testing                                                                                                                                                                                                   | USP <25> preservative assurance testing                                                                                                                                                                                                                        | USP <51>                                                                                                                                                                           |
| Sterilized                   | Sterile                                                                                                                                                                                                                                       | N/A                                                                                                                                                                                                                                                            | Not provided sterile                                                                                                                                                               |

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# K211123
Page 4 of 7

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### K211123 Page 5 of 7

### 8. SUBSTANTIAL EQUIVALENCE DISCUSSION

LUOFUCON® Silver Wound Gel /LUOFUCON® Silver Antimicrobial Wound Gel has been subjected to ISO 10993 biocompatibility studies to demonstrate the device is as safe as its predicate device. The performance tests were conducted to demonstrate that the subject device is as effective as its predicate device.

### Performance Testing

The following performance tests were conducted on subject devices in comparison to the predicate device and the reference device:

Appearance Fluid Affinity: EN 13726-1 Test methods for primary wound dressings - Part 1: Aspects of absorbency Loss on Drying: USP <731> Loss on Drying pH Value: USP <791> pH

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K211123 Page 6 of 7

Preservative Effectiveness: USP <51> Antimicrobial Effectiveness Testing

### Biocompatibility Testing

Based on Table A.1 of ISO 10993-1 and Table A.1 of FDA Guidance "Use of International Standard ISO 10993-1, Biological evaluation of medical devices -Part 1_Evaluation and testing within a risk management process", the subject device is categorized as a surface device in contact with breached or compromised surface with prolonged duration. The subject device was evaluated for:

- Cytotoxicity Sensitization Irritation Systemic toxicity Implantation Material-mediated pyrogenicity
### Animal Study

A Porcine Wound Healing Study was conducted to evaluate the effect of the subject device on the wound healing process. Under the conditions of the study, LUOFUCON® Silver Wound Gel /LUOFUCON® Silver Antimicrobial Wound Gel did not inhibit normal wound healing and did not trigger adverse biological reactions.

### Clinical Studies

No clinical study was conducted.

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# FORY↓↓ MEDICAL

K211123 Page 7 of 7

### 9. CONCLUSIONS

Based on the comparison analysis, performance tests, biocompatibility tests and animal study provided in this submission, the subject device, LUOFUCON® Silver Wound Gel /LUOFUCON® Silver Antimicrobial Wound Gel is demonstrated to be as safe and effective as the legally marketed predicate device, AcryDerm Antimicrobial Silver Gel Wound Dressing Model #B /OTC: AcryDerm Wound Gel Model #B (K083103). So, the subject device is considered Substantially Equivalent (SE) to the predicate device.

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**Source:** [https://fda.innolitics.com/device/K211123](https://fda.innolitics.com/device/K211123)

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