Veterinary Reviews

Trusted by Veterinary Professionals Across the Country

★★★★★

"The FILBLOC barbed suture holds tissue evenly and securely, and the material naturally dissolves over time, so no removal is needed. A reliable option for safe, efficient surgical closure."

Verified Veterinarian · USA
★★★★★

"I liked this suture. It came in a timely fashion. Packaged well. No complaints from staff. No suture reactions for any patient we have used it for so far. Would get again."

Verified Clinic · USA
★★★★★

"Great quality sutures — sharp needle, smooth handling, and strong knot security. Reliable absorption and sterile packaging make them an excellent value for veterinary use."

Verified DVM · USA
★★★★★

"Really nice suture, no memory and sharp needle. We really liked the free sample. Will be ordering regularly for our practice."

Verified Practice · USA
Why FILBLOC

Why Veterinarians Are Switching to FILBLOC

Three reasons practices across the country are choosing FILBLOC as their go-to surgical suture.

01 / 03

Knotless Design for Faster Wound Closure

FILBLOC's self-locking barbed suture eliminates knot tying entirely. Every pass through tissue anchors automatically — reducing surgical closure time by up to 50% compared to traditional knotted sutures. Work with both hands without an assistant managing the suture line.

02 / 03

Stronger Wound Security

Each barb grips tissue independently, distributing tension uniformly across the entire wound length. Unlike standard knotted sutures where a single failure can compromise the whole closure, FILBLOC maintains wound integrity even if one anchor point is disrupted.

03 / 03

Lower Cost Per Procedure

FILBLOC requires fewer sutures per procedure compared to conventional interrupted techniques, with no need for additional clips or anchoring materials. Offering competitive pricing and up to 20% storewide discounts, FILBLOC delivers premium performance at a cost that suits every practice.

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Shop FILBLOC Barbed Sutures

All FILBLOC products ship free across the USA with upto 20% storewide discount.

✓ Free Shipping
Vet Use Only
Upto 20% OFF

FILBLOC Absorbable Surgical Suture USP Size 2-0, (HR-37) 1/2 37 mm C. Round Body Needle, 18 Inches (45 cm), 12 Count, Veterinary Use Only

$242.10
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Vet Use Only
Upto 20% OFF

FILBLOC Absorbable Surgical Suture USP Size 2-0, (HR-26) 26 mm 1/2 C. TAPER, 18 Inches (45 cm), 12 Count, Veterinary Use Only

$242.10
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See It In Action

Watch FILBLOC in Surgery

See how FILBLOC's knotless barbed technology performs in real veterinary procedures — from spay closures to laparoscopic repairs.

Competitive Advantage

How FILBLOC Compares to Other Barbed Sutures

Veterinarians familiar with PDS, Stratafix, Quill, or V-Loc will find FILBLOC offers distinct advantages rooted in its precision Italian manufacturing.

FILBLOC®

FILBLOC — The Italian Advantage

✓

Unilateral barb cutting — deeper, more consistent barbs with controlled spacing for stronger tissue grip and more predictable performance.

✓

Polydioxanone final lock button — secure terminal anchoring integrated directly into the suture material. No extra steps required.

✓

ISO 13485 + ISO 9001 certified — manufactured at Assut Europe's Italian facility with 30+ years of surgical suture expertise.

✓

Competitive pricing with 20% discount — free shipping across the USA, no additional anchoring materials required.

Stratafix / Quill / V-Loc

✗

Helicoidal (spiral) barb cut — cannot achieve the same barb depth or spacing consistency, which may lead to uneven tissue anchoring.

✗

Loop or plate terminal fixation — Stratafix and V-Loc rely on loops or plates for anchoring, requiring additional operator steps at closure.

✗

Premium price point — comparable barbed suture technology available at a significantly higher cost per procedure.

✗

No free sample program — most competitors require a full purchase commitment before you can evaluate the product in your practice.

Built for the Procedures You Perform Every Day

  • FILBLOC is a synthetic absorbable monofilament barbed suture designed for continuous suturing techniques across all veterinary surgical specialties.
    • -
01

Soft Tissue Surgery

Spays, ovariohysterectomies, mass removals, wound closures, and body wall repairs. Especially effective for midline celiotomy closure with uniform tension across the linea alba.

02

Laparoscopic & Minimally Invasive

Laparoscopic gastropexy, hernia repair, and organ biopsies. Eliminates technically demanding intracorporeal knot tying, simplifying laparoscopic suturing significantly.

03

Orthopedic Closures

Fascial closure after orthopedic procedures, TPLO site closure, and tendon repairs. The 180–210 day absorption provides long-term support for slow-healing tissues.

04

Gastrointestinal Surgery

Enterotomy closure, gastrotomy, cystotomy, and intestinal anastomosis. Uniform tension distribution helps ensure watertight GI closure, reducing postoperative leakage risk.

05

Skin & Intradermal Closure

Subcuticular and intradermal closures for improved cosmesis and patient comfort. Eliminates external staples that irritate animals or require removal visits.

06

Emergency Surgery

Diaphragmatic herniorrhaphy, traumatic wound repair, and emergency exploratory surgery. Self-anchoring barbs maintain closure without an assistant — invaluable in fast-paced settings.

Material Science

The Science Behind FILBLOC's Knotless Barbed Technology

Precision-engineered barbs cut using a unilateral technique, spaced ~2mm apart. The thread is soft and flexible with minimal memory effect, uniformity of gauge, and minimal capillarity.

~70%
Tensile strength retained at 28 days post-implantation
~55%
Tensile strength retained at 42 days post-implantation
210
Days to complete absorption via hydrolysis
2mm
Precise inter-barb spacing for optimal tissue grip
Technical Data

Technical Specifications

Trade Name
FILBLOC®
Classification
Monofilament absorbable barbed suture, sterile, synthetic
Material
Polydioxanone — Poly(p-dioxanone) — Same polymer as PDS/PDS II
Thread Type
Synthetic monofilament absorbable barbed
Color
Violet (D&C Violet n.2) or natural white
Available Gauges
EP 1.5–5 / USP 4/0 to 2 (e-commerce: USP 2-0)
Needle Types
Atraumatic stainless steel AISI 300 & 400 series
Configurations
HR-26 (26mm 1/2 C. Taper) · HR-37 (37mm 1/2 C. Round Body)
Thread Length
18 inches (45 cm)
Tensile Strength
~70% at 28 days · ~55% at 42 days
Complete Absorption
180–210 days
Sterilization
Ethylene Oxide (EO)
Shelf Life
5 years
Packaging
Sterile double pack — box of 12 units
Latex
Latex-free device
Manufacturer
Assut Europe S.P.A., Magliano dei Marsi, Italy
Distributor
Gexfix International Corp., Boca Raton, FL
Certifications
ISO 13485:2016 · ISO 9001:2015 · ISO 14001:2015 · CE 0373 (Class III)
FAQ

Frequently Asked Questions

FILBLOC is indicated for soft tissue approximation in all veterinary surgical specialties where a continuous suturing technique is used. Common applications include ovariohysterectomy (spay), body wall and fascial closures, laparoscopic gastropexy, enterotomy and gastrotomy closure, orthopedic fascial repair, skin and intradermal closure, hernia repair, and emergency wound closure. Suitable for small animals, large animals, and exotic species at the attending veterinarian's discretion.
FILBLOC is made from the same polydioxanone polymer as PDS sutures but adds self-locking barbed technology for knotless closure. Compared to Stratafix, Quill, and V-Loc, FILBLOC uses a unilateral barb-cutting technique producing deeper, more consistent barbs with controlled spacing vs. the helicoidal (spiral) cut used by competitors. FILBLOC also features a unique polydioxanone final lock system. Many veterinary professionals who use PDS sutures find FILBLOC's barbed technology a natural upgrade that saves significant closure time.
FILBLOC is completely absorbed within 180 to 210 days through hydrolysis of the polydioxanone polymer — a similar absorption timeline to PDS II sutures. It retains approximately 70% of its tensile strength at 28 days and approximately 55% at 42 days post-implantation. This long-term absorption profile makes it well suited for tissues requiring extended wound support during healing.
Yes. Gexfix International Corp. offers free samples of FILBLOC to veterinary clinics and hospitals. You can request a sample through our website or by contacting us at info@gexfix.com or +1 212 213 8244. We encourage veterinary professionals to experience the handling, needle sharpness, and tissue performance of FILBLOC before committing to a full order.
FILBLOC is manufactured by Assut Europe S.P.A. in Italy and carries ISO 13485:2016, ISO 9001:2015, and ISO 14001:2015 certifications. It holds a CE mark as a Class III medical device (CE 0373). All products are sterilized by Ethylene Oxide and have a shelf life of 5 years. FILBLOC is designated for veterinary use only and is distributed in the United States through Gexfix International Corp.
Two configurations are offered: HR-26 (26mm, 1/2 circle taper) and HR-37 (37mm, 1/2 circle round body). Both needles are manufactured from AISI 300 and AISI 400 series stainless steel with a needle-to-thread gauge ratio as close to 1:1 as possible for minimal tissue trauma.
Yes. We offer competitive volume pricing structures for veterinary practices, animal hospitals, and veterinary teaching institutions. Please contact us at info@gexfix.com or call +1 212 213 8244 to discuss bulk order pricing, recurring order discounts, and distribution partnership opportunities.
FILBLOC is a monofilament suture. Monofilament construction provides reduced tissue drag, lower capillarity (minimizing bacterial wicking), and a smoother surface that causes less tissue trauma during placement. These properties contribute to lower infection risk and improved wound healing compared to braided sutures.
Transitioning is straightforward for veterinarians experienced with running suture techniques. No knot tying is required — the barbs anchor each pass through tissue automatically, and the final lock system secures the terminal end. We recommend starting with a routine spay closure to get comfortable with the handling characteristics before applying it to more complex cases. Our team is available to provide guidance during the transition.
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Ready to Experience Knotless Closure in Your Practice?

Join the growing number of veterinary professionals who trust FILBLOC for faster, safer surgical closure. Whether you are ready to order or want to try a free sample first, we are here to support your practice.

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