Filbloc

K150553 · Assut Europe · NEW · May 19, 2016 · General, Plastic Surgery

Device Facts

• Record ID: K150553
• Device Name: Filbloc
• Applicant: Assut Europe
• Product Code: NEW · General, Plastic Surgery
• Decision Date: May 19, 2016
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 878.4840
• Device Class: Class 2
• Attributes: Therapeutic

Intended Use

Filbloc sutures are indicated for use in general soft tissue approximation where use of an absorbable suture is appropriate.

Device Story

Filbloc is a monofilament synthetic absorbable surgical suture composed of poly(p-dioxanone). The device features unidirectional or bidirectional barbs, or unidirectional barbs with a final block, allowing for tissue approximation without the need for surgical knots. It is available in various lengths and diameters (USP 2 through 4/0) with attached needles. Used by surgeons in clinical settings for soft tissue approximation, the device provides mechanical support during the healing process. The barbs anchor the suture in tissue, eliminating knot-tying requirements and potentially simplifying surgical closure. The material is absorbed by the body over time.

Clinical Evidence

No clinical trials were conducted. Evidence consists of bench testing and animal studies. Bench testing confirmed compliance with USP 29 standards for diameter, attachment, and tensile strength. Biocompatibility was established via ISO 10993 testing, including cytotoxicity, irritation, sensitization, acute and subchronic systemic toxicity, local effects after implantation, and genotoxicity (Mouse Lymphoma Assay).

Technological Characteristics

Material: Poly(p-dioxanone) (PDO). Form: Monofilament, smooth or barbed (unidirectional/bidirectional). Sizes: USP 4-0 to 2. Sterilization: Ethylene Oxide gas. Conforms to USP Monograph for absorbable surgical sutures. Biocompatibility per ISO 10993.

Indications for Use

Indicated for general soft tissue approximation in patients where an absorbable suture is appropriate. Not recommended for tissues undergoing distension/stretching or in elderly, malnourished, or weakened patients with conditions delaying wound healing.

Regulatory Classification

Identification

An absorbable polydioxanone surgical suture is an absorbable, flexible, sterile, monofilament thread prepared from polyester polymer poly (p-dioxanone) and is intended for use in soft tissue approximation, including pediatric cardiovascular tissue where growth is expected to occur, and ophthalmic surgery. It may be coated or uncoated, undyed or dyed, and with or without a standard needle attached.

Special Controls

*Classification.* Class II (special controls). The special control for the device is FDA's “Class II Special Controls Guidance Document: Surgical Sutures; Guidance for Industry and FDA.” See § 878.1(e) for the availability of this guidance document.

Predicate Devices

• Stratafix Symmetric PDS Plus Knotless Tissue Control (K141776)
• PDS II (N18331)

Submission Summary (Full Text)

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

May 19, 2016

Assut Europe Ms. Rhonda Alexander, M.S., M.P.A. Registrar Corp. 144 Research Drive Hampton, VA 23666

Re: K150553

Trade/Device Name: Filbloc Regulation Number: 21 CFR 878.4840 Regulation Name: Absorbable polydioxanone surgical suture Regulatory Class: Class II Product Code: NEW Dated: April 12, 2016 Received: April 14, 2016

Dear Ms. Alexander:

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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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 contact the Division of Industry and Consumer Education at its toll-free number [phone] or [phone] or at its Internet address

http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm. 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/ReportaProblem/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 Industry and Consumer Education at its toll-free number [phone] or [phone] or at its Internet address

http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.

Sincerely yours,

# Jennifer R. Stevenson -A

For Binita S. Ashar, M.D., M.B.A., F.A.C.S. Director Division of Surgical Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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#### Page 17

| DEPARTMENT OF HEALTH AND HUMAN SERVICES<br>Food and Drug Administration | Form Approved: OMB No. 0910-0120<br>Expiration Date: January 31, 2017<br>See PRA Statement below. |
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**Indications for Use**

| 510(k) Number (If known) | k150553 |
|--------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------|
| Device Name | Filbloc |
| Indications for Use (Describe) | Filbloc sutures are indicated for use in general soft tissue approximation where use of an absorbable suture is appropriate. |
| Type of Use (Select one or both, as applicable) | |
| <span style="display:inline-block; margin-right: 5px;">☑</span> Prescription Use (Part 21 CFR 801 Subpart D) | <span style="display:inline-block; margin-right: 5px;">☐</span> Over-The-Counter Use (21 CFR 801 Subpart C) |

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FOR FDA USE ONLY

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## K150553, pg. 1 of 3

## 510(k) Summary

#### I. SUBMITTER

| Assut Europe SpA |
|------------------|
|------------------|

| Registered office: | Via G.Gregoraci, 12<br>00173 Roma - Italy |
|----------------------|-----------------------------------------------------------|
| Manufacturing plant: | Zona Industriale<br>67062 Magliano dei Marsi (AQ) - Italy |
| Telephone: | [phone] |
| Fax Number: | [phone] |
| Contact Person: | Gloria Aggio |
| Date Prepared: | May 17, 2016 |

#### II. DEVICE

| Name of Device: | Filbloc |
|-----------------------|---------------------------------------------|
| Common or Usual Name: | Suture, Surgical, Absorbable, Polydioxanone |
| Classification Name: | Absorbable Polydioxanone Surgical Suture |
| Regulatory Class: | II |
| Product Code: | NEW |
| Regulation Number: | 21 CFR 878.4840 |

#### III. PREDICATE DEVICE

| Name: | Stratafix Symmetric PDS Plus Knotless Tissue Control |
|---------------|------------------------------------------------------|
| Manufacturer: | Ethicon, Inc. |
| K Number: | K141776 |
| Name: | PDS II |
| Manufacturer: | Ethicon, Inc. |
| K Number: | N18331 |

This predicate has not been subject to a design-related recall. No reference devices were used in this submission.

#### IV. DEVICE DESCRIPTION

Filbloc (polydioxanone) monofilament synthetic absorbable sutures are prepared from the polyester, poly(p-dioxanone). The empirical molecular formula of the polymer is:

-(0-CH2-CH2-O-CH2-CO-CH2-CO)n-

Filbloc sutures are undyed or dyed with D&C Violet No. 2 (21CFR§ 74.3602).

The device is designed with unidirectional or bidirectional barbs, or with unidirectional barbs and final block in PDO. The barbs and the block design allow for tissue approximation, without need to tie surgical knot.

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The device is available in various lengths and diameter sizes 2 through 4/0 with various needles attached at one end or to both ends.

#### V. INDICATIONS FOR USE

Filbloc sutures are indicated for general soft tissue approximation where use of an absorbable suture is appropriate.

## VI. COMPARISON WITH THE PREDICATE DEVICE - SUMMARY

#### TECHNOLOGICAL CHARACTERISTICS a.

| | New device | Predicate device |
|--------------------------------------------------|-------------------------------------|------------------------------------------------------------|
| Parameter | FilBloc smooth or barbed | Stratafix Symmetric<br>PDS Plus Knotless<br>Tissue Control |
| Chemical | Poly(p-dioxanone) | Poly(p-dioxanone) |
| USP sizes | 4-0 to 2 | 3-0 to 1 |
| Approx. Tensile<br>Strength Residual at<br>Time: | 4 weeks 71.7%<br>8 weeks 16.5% | 2 weeks ~75%<br>4 weeks ~65%<br>6 weeks ~ 55% |
| Absorption | ~ 180-210 days<br>post-implantation | ~ 120-180 days<br>post-implantation |

#### b. INTENDED USE

| | New device | Predicate device |
|-----------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | Filbloc smooth or barbed | Stratafix Symmetric PDS Plus<br>Knotless Tissue Control |
| Indication for use | Filbloc is indicated for use in soft<br>tissue approximation where the use<br>of absorbable suture is appropriate | Stratafix device is indicated for use in soft<br>tissue approximation where the use of<br>absorbable suture is appropriate |
| Precaution or<br>controindication | It is therefore recommended that<br>the surgeon will consider the<br>possible use of non absorbable<br>sutures for the closure of tissues<br>which may undergo distension or<br>stretching or requiring additional<br>support. This suture kind may be<br>inappropriate in elderly,<br>malnourished or weakened patients<br>or in patients suffering from<br>conditions which may delay wound<br>healing process | The Stratafix device is not to be used where<br>prolonged (beyond six weeks)<br>approximation of tissues under stress is<br>required and is not to be used in conjunction<br>with or for fixation of prosthetic devices<br>that are nonabsorbable |
| Sterility | Ethylene Oxide gas | Ethylene Oxide gas |

The new device, Filbloc, has similar technological characteristics as the predicate device; it conforms to the USP Monograph for absorbable surgical sutures, and has the same intended use as the predicate device.

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Differences between Filbloc and the predicate device are:

- Stratafix device is available in four USP sizes (USP 3-0, USP 2-0, USP 0, USP 1), whereas 1. Filbloc device is available in six USP sizes (USP 4-0, USP 3-0, USP 2-0, USP 0, USP 1, USP 2)
- 2. Stratafix device is available only barbed, whereas Filbloc device is available barbed or smooth

#### VII. PERFORMANCE DATA

Physical testing was performed on poly(p-dioxanone) synthetic absorbable suture, to USP 29, including <861> suture diameter, <871> suture attachment, <881>tensile strength. Animal testing was performed for conformance to ISO 10993 for Biocompatibility.

Rabbit Implantation Tests in accordance with ISO 10993-6: 2007 were conducted with determinations of tensile strength.

#### Biocompatibility Testing

- Test for in vitro cytotoxicity (ISO 10993-5:2009) -
- Irritation tests animal intracutaneous (intradermal) reactivity test (ISO 10993-10:2010) -
- Skin sensitization tests guinea pig maximization test (GPMT), extracted in sesame oil -(ISO 10993-10:2010)
- -Skin sensitization tests - guinea pig maximization test (GPMT), extracted in sterile solution of sodium chloride (ISO 10993-10:2010)
- -Acute systemic toxicity (ISO 10993-11:2006)
- Rabbit subchronic systemic toxicity (ISO 10993-11:2006) -
- -Test of local effects after implantation (ISO 10993-6:2007)
- Genotoxicity Test Mouse Lymphoma Assay, extracted in Modified Eagle Medium without serum (ISO 10993-3:2003)
- Genotoxicity Test Mouse Lymphoma Assay, extracted in ethanol/water solution (ISO -10993-3:2003)

The subject device is considered an implant device with contact duration of over 30 days.

#### VII. CONCLUSION

Filbloc in PDO sutures have the same intended use and same indication for use as the predicate devices "Stratafix". The nonclinical and clinical data support a finding of substantial equivalence, since they demonstrate that the device is as safe, as effective, and performs as well as or better than the legally marketed device.

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