K Number
K191461
Device Name
Exofin Fusion Skin Closure System
Date Cleared
2020-06-05

(368 days)

Product Code
Regulation Number
878.4011
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
Exofin Fusion Skin Closure System is intended for topical application only to hold closed easily approximated skin edges of wounds from surgical incisions, incisions from minimally invasive surgery, and simple, thoroughly cleansed, trauma-induced lacerations. Exofin Fusion Skin Closure System should be used in conjunction with, but not in place of, deep dermal stitches. Additionally, the adjunct wound closure device component maintains temporary skin edge alignment along the length of the wound during application of the liquid adhesive.
Device Description
Exofin® Fusion Skin Closure System is a sterile, liquid topical skin adhesive containing a monomeric (2- octyl cyanoacrylate) formulation and the colorant D & C Violet #2. It is provided in a single-use applicator packaged in a rigid blister. As applied to skin, the liquid is slightly more viscous than water and polymerizes within minutes. In vitro studies have shown that Exofin® Fusion Skin Closure System acts as a barrier to microbial penetration as long as the adhesive film remains intact. Clinical studies were not conducted to demonstrate microbial barrier properties and a correlation between microbial barrier properties and a reduction in infection have not been established. Exofin Fusion Skin Closure System also incorporates a self-adhering mesh that is applied to the approximated skin edges to provide temporary skin edge alignment of incisions up to 20 cm each in length until the liquid adhesive is applied to achieve skin closure.
More Information

No
The 510(k) summary describes a physical device (liquid adhesive and mesh) for wound closure and does not mention any software, algorithms, or data processing that would indicate the use of AI/ML.

Yes
The device is intended to hold closed easily approximated skin edges of wounds from surgical incisions, minimally invasive surgery, and trauma-induced lacerations, which is a therapeutic function.

No

Explanation: The device is a wound closure system, specifically a topical skin adhesive with an adjunct wound closure component, used to hold skin edges together. It does not perform any diagnostic function.

No

The device description clearly outlines physical components: a sterile, liquid topical skin adhesive and a self-adhering mesh. This indicates a hardware-based medical device, not a software-only one.

Based on the provided information, this device is not an IVD (In Vitro Diagnostic).

Here's why:

  • Intended Use: The intended use is for the topical application to hold closed skin edges of wounds. This is a direct application to the patient's body for a therapeutic purpose (wound closure).
  • Device Description: The device is a sterile, liquid topical skin adhesive and a self-adhering mesh. These are physical materials applied externally.
  • Lack of In Vitro Testing: While there are non-clinical and biocompatibility tests mentioned, these are related to the physical properties and safety of the device in contact with tissue, not the analysis of biological samples in vitro (outside the body).
  • No Mention of Biological Samples: The description does not involve the collection or analysis of any biological samples (blood, urine, tissue, etc.).
  • No Diagnostic Purpose: The device is used for wound closure, which is a treatment, not a diagnostic process to identify a disease or condition.

IVD devices are used to examine specimens derived from the human body to provide information for diagnostic, monitoring, or compatibility purposes. This device does not fit that description.

N/A

Intended Use / Indications for Use

Exofin Fusion Skin Closure System is intended for topical application only to hold closed easily approximated skin edges of wounds from surgical incisions, incisions from minimally invasive surgery, and simple, thoroughly cleansed, trauma-induced lacerations. Exofin Fusion Skin Closure System should be used in conjunction with, but not in place of, deep dermal stitches. Additionally, the adjunct wound closure device component maintains temporary skin edge alignment along the length of the wound during application of the liquid adhesive.

Product codes (comma separated list FDA assigned to the subject device)

OMD

Device Description

Exofin® Fusion Skin Closure System is a sterile, liquid topical skin adhesive containing a monomeric (2- octyl cyanoacrylate) formulation and the colorant D & C Violet #2. It is provided in a single-use applicator packaged in a rigid blister. As applied to skin, the liquid is slightly more viscous than water and polymerizes within minutes. In vitro studies have shown that Exofin® Fusion Skin Closure System acts as a barrier to microbial penetration as long as the adhesive film remains intact. Clinical studies were not conducted to demonstrate microbial barrier properties and a correlation between microbial barrier properties and a reduction in infection have not been established. Exofin Fusion Skin Closure System also incorporates a self-adhering mesh that is applied to the approximated skin edges to provide temporary skin edge alignment of incisions up to 20 cm each in length until the liquid adhesive is applied to achieve skin closure.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

Skin edges of wounds from surgical incisions, incisions from minimally invasive surgery, and trauma-induced lacerations.

Indicated Patient Age Range

Not Found

Intended User / Care Setting

Not Found

Description of the training set, sample size, data source, and annotation protocol

Not Found

Description of the test set, sample size, data source, and annotation protocol

Not Found

Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

Non-clinical Testing: Testing was performed in accordance with the FDA Class II Special Controls Guidance Document: Tissue Adhesive with Adjunct Wound Closure Device Intended for the Topical Approximation of Skin. The following tests were performed on Exofin® Fusion Skin Closure System to demonstrate substantial equivalence:

  • Wound closure strength (ASTM F2458-05)
  • Adhesive strength in tension (ASTM F2258-05)
  • T-peel adhesion strength (ASTM F2256-05)
  • Lap-shear strength (ASTM F2255-05)
  • Heat of polymerization
  • Microbial barrier effectiveness
  • Extractables and Leachables

Biocompatibility Testing: Biocompatibility testing was conducted according to the requirements of FDA Guidance Document Use of International Standard ISO 10993-1 "Biological evaluation of medical devices – Part 1: Evaluation and testing within a risk management process" for a surface device in prolonged contact with a breached or compromised surface.

No clinical testing has been submitted, referenced, or relied upon for determining substantial equivalence.

Conclusion: Based on the intended use, technological characteristics, and performance testing, the subject Exofin® Fusion Skin Closure System has been shown to be substantially equivalent to the predicate.

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Not Found

Predicate Device(s): If the device was cleared using the 510(k) pathway, identify the Predicate Device(s) K/DEN number used to claim substantial equivalence and list them here in a comma separated list exactly as they appear in the text. List the primary predicate first in the list.

K171442

Reference Device(s): Identify the Reference Device(s) K/DEN number and list them here in a comma separated list exactly as they appear in the text.

K152476

Predetermined Change Control Plan (PCCP) - All Relevant Information for the subject device only (e.g. presence / absence, what scope was granted / cleared under the PCCP, any restrictions, etc).

Not Found

§ 878.4011 Tissue adhesive with adjunct wound closure device for topical approximation of skin.

(a)
Identification. A tissue adhesive with adjunct wound closure device intended for the topical approximation of skin is a device indicated for topical application only to hold closed easily approximated skin edges of wounds from surgical incisions, including punctures from minimally invasive surgery, and simple, thoroughly cleansed, trauma-induced lacerations. It may be used in conjunction with, but not in place of, deep dermal stitches. Additionally, the adjunct wound closure device component maintains temporary skin edge alignment along the length of wound during application of the liquid adhesive.(b)
Classification. Class II (special controls). The special control for this device is FDA's “Guidance for Industry and FDA Staff; Class II Special Controls Guidance Document: Tissue Adhesive with Adjunct Wound Closure Device Intended for the Topical Approximation of Skin.” See § 878.1(e) for the availability of this guidance document.

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June 5, 2020

Chemence Medical, Inc. Kenneth Broadley Executive Vice President 200 Technology Drive Alpharetta, Georgia 30005

Re: K191461

Trade/Device Name: Exofin Fusion Skin Closure System Regulation Number: 21 CFR 878.4011 Regulation Name: Tissue Adhesive with Adjunct Wound Closure Device for Topical Approximation of Skin Regulatory Class: Class II Product Code: OMD Dated: May 4, 2020 Received: May 6, 2020

Dear Kenneth Broadley:

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

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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 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 mediation-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/cdrh-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,

Anjana Jain, Ph.D. Acting Assistant Director DHT4B: Division of Infection Control and Plastic Surgery Devices OHT4: Office of Surgical and Infection Control Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health

Enclosure

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Indications for Use

510(k) Number (if known) K191461

Device Name Exofin Fusion Skin Closure System

Indications for Use (Describe)

Exofin Fusion Skin Closure System is intended for topical application only to hold closed easily approximated skin edges of wounds from surgical incisions, incisions from minimally invasive surgery, and simple, thoroughly cleansed, trauma-induced lacerations. Exofin Fusion Skin Closure System should be used in conjunction with, but not in place of, deep dermal stitches. Additionally, the adjunct wound closure device component maintains temporary skin edge alignment along the length of the wound during application of the liquid adhesive.

Type of Use (Select one or both, as applicable)
☑ Prescription Use (Part 21 CFR 801 Subpart D)☐ Over-The-Counter Use (21 CFR 801 Subpart C)

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510(k) Summary

| Submitted By: | Chemence Medical, Inc.
200 Technology Drive
Alpharetta, GA 3005-3926
Phone: 844-633-4583
Fax: 678-820-3320 |
|----------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Contact Person: | Dr. Kenneth N. Broadley
Chief Regulatory and Quality Officer
Phone: 678-689-0761
Email: kbroadley@chemence.com |
| Date of Summary: | June 5, 2020 |
| Trade Name: | Exofin® Fusion Skin Closure System |
| Common Name: | Topical Adhesive with Mesh |
| Classification Name: | Tissue Adhesive with Adjunct Wound Closure Device for Topical
Approximation of Skin (21 CFR 878.4011) |
| Regulatory Class: | Class II |
| Product Code: | OMD |
| Device Description: | Exofin® Fusion Skin Closure System is a sterile, liquid topical skin adhesive
containing a monomeric (2- octyl cyanoacrylate) formulation and the
colorant D & C Violet #2. It is provided in a single-use applicator packaged
in a rigid blister. As applied to skin, the liquid is slightly more viscous than
water and polymerizes within minutes. In vitro studies have shown that
Exofin® Fusion Skin Closure System acts as a barrier to microbial
penetration as long as the adhesive film remains intact. Clinical studies
were not conducted to demonstrate microbial barrier properties and a
correlation between microbial barrier properties and a reduction in
infection have not been established. Exofin Fusion Skin Closure System
also incorporates a self-adhering mesh that is applied to the
approximated skin edges to provide temporary skin edge alignment of
incisions up to 20 cm each in length until the liquid adhesive is applied to
achieve skin closure. |

  • Exofin® Fusion Skin Closure System is intended for topical application Intended Use: only to hold closed easily approximated skin edges of wounds from surgical incisions, including punctures from minimally invasive surgery, and simple, thoroughly cleansed, trauma-induced lacerations. exofin®

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Fusion Skin Closure System should be used in conjunction with, but not in place of, deep dermal stitches. Additionally, the adjunct wound closure device component maintains temporary skin edge alignment along the length of the wound during application of the liquid adhesive.

Predicate Devices:K171442Exofin® Fusion Skin Closure System
Reference Device:K152476Exofin® High Viscosity Tissue Adhesive

Comparison of Technological Characteristics with the Predicate Devices:

Exofin® Fusion® Skin Closure System is the same as the predicate device with regard to intended use, mechanism of action and performance characteristics. Both devices contain a self-adhering mesh that is applied to the approximated skin edges to provide temporary skin edge alignment of wounds of up to 20 cm in length until a liquid topical adhesive is applied to achieve wound closure. The liquid adhesive formulations, the mesh materials, and the method of adhesive application are all the same.

The predicate included two mesh strips of 22 cm in length by 4 cm in width, accompanied by 4 gm of liquid adhesive housed in an aluminum tube, while the subject device is provided with a single 22 X 4 cm mesh and 2 x 1.75 gm of adhesive in the aluminum tubes.

Both the subject device and the predicate device utilize a chemical that initiates the polymerization (curing) of the adhesive as it is applied. However, in the subject device the chemical is impregnated into the porous disk within the applicator assembly, instead of being coated on the mesh as in the predicate. Additionally, the impregnated porous disk of the subject Exofin Fusion Skin Closure system also includes a chemical that accelerates the polymerization of the adhesive; this chemical is not present in the predicate device.

Comparison Table:

AttributeSubject devicePredicateComparison
Trade NameExofin Fusion Skin Closure
SystemExofin Fusion Skin Closure
SystemSame
510(k) No.K191461K171442NA
Common
NameCutaneous Tissue Adhesive
with MeshCutaneous Tissue Adhesive
with MeshSame
Product CodeOMDOMDSame
Regulation21 CFR 878.401121 CFR 878.4011Same
AttributeSubject devicePredicate DeviceComparison
IndicationsExofin Fusion® Skin Closure
System is intended for topical
application only to hold easily
closed approximated skin
edges of wounds from
surgical incisions, including
incisions from minimally
invasive surgery, and simple
thoroughly cleansed, trauma-
induced lacerations.
Exofin Fusion® Skin Closure
Systemshould be used in
conjunction with, but not in
place of, deep dermal
stitches. Additionally, the
adjunct wound closure device
Exofin Fusion® Skin Closure
Systemis intended for
topical application only to
hold easily closed
approximated skin edges of
wounds from surgical
incisions, including incisions
from minimally invasive
surgery, and simple
thoroughly cleansed,
trauma-induced lacerations.
Exofin Fusion® Skin Closure
System should be used in
conjunction with, but not in
place of, deep dermal
stitches. Additionally, the
adjunct wound closure
device component
maintains temporary skin
edge alignment along the
length of the wound during
application of the liquid
adhesive.Same
Adhesive
Formulation2-octylcyanoacrylate based
formulation2-octylcyanoacrylate based
formulationSame
MeshPolyester with acrylic
pressure sensitive adhesivePolyester with acrylic
pressure sensitive adhesiveSame
ActivatorQuaternary ammonium salt in
applicatorQuaternary ammonium salt
on meshEquivalent
AccelerantCrown ether in applicatorCrown ether on meshEquivalent
Product
SterilizationHeat and ethylene oxideHeat and ethylene oxideSame

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Non-clinical Testing: Testing was performed in accordance with the FDA Class II Special Controls Guidance Document: Tissue Adhesive with Adjunct Wound Closure Device Intended for the Topical Approximation of Skin. The following tests were performed on Exofin® Fusion Skin Closure System to demonstrate substantial equivalence:

  • Wound closure strength (ASTM F2458-05) ●
  • Adhesive strength in tension (ASTM F2258-05) ●
  • T-peel adhesion strength (ASTM F2256-05) ●
  • Lap-shear strength (ASTM F2255-05)
  • Heat of polymerization
  • Microbial barrier effectiveness
  • Extractables and Leachables

Biocompatibility Testing: Biocompatibility testing was conducted according to the requirements of FDA Guidance Document Use of International Standard ISO 10993-1 "Biological evaluation of medical devices – Part 1: Evaluation and testing within a risk management process" for a surface device in prolonged contact with a breached or compromised surface.

  • No clinical testing has been submitted, referenced, or relied upon for Clinical Testing: determining substantial equivalence.
  • Conclusion: Based on the intended use, technological characteristics, and performance testing, the subject Exofin® Fusion Skin Closure System has been shown to be substantially equivalent to the predicate.