AV Fistula Instrument Set — Vascular Surgery Tools for Dialysis Access

Arteriovenous fistula creation for hemodialysis access is one of the most commonly performed vascular surgical procedures globally, driven by the ongoing growth in end-stage renal disease. The instrument set for AV fistula surgery is compact and specialized — the procedure is performed on vessels as small as 2 to 3 mm in diameter, requiring instruments with fine tips, precise jaw alignment, and smooth locking mechanisms.

AV Fistula Instrument Set — Standard Contents

A complete AV fistula set for the standard Brescia-Cimino (radiocephalic) or brachiocephalic approach contains 20 to 30 instruments:

Vascular Clamps

• Bulldog vascular clamps (4 to 6 pcs, curved and straight) — for temporary occlusion of the radial artery and cephalic vein during vessel preparation and anastomosis; the low-profile atraumatic jaw minimizes intimal damage
• DeBakey peripheral vascular clamps (2 pcs, small, angled) — for proximal and distal artery control when bulldog clamps are not sufficient for vessel caliber
• Vessel loops (silicone, pre-cut) — some sets include these; used for gentle vascular control without crushing the vessel wall

Needle Holders — Fine Vascular Pattern

• Castroviejo needle holder (14 cm and 16 cm) — the spring-loaded design provides fingertip control for placing 6-0 and 7-0 polypropylene sutures at the anastomosis; the spring-lock mechanism prevents inadvertent opening mid-stitch
• Ryder needle holder (15 cm) — heavier than the Castroviejo, preferred by surgeons who use a power grip rather than a precision grip at the anastomosis

Vascular Forceps

• DeBakey atraumatic tissue forceps (15 cm, fine tip) — the standard forceps for handling vessel walls during dissection and anastomosis; longitudinal serrations grip without crushing the adventitia
• Potts-Smith dressing forceps (15 cm) — for suture handling and fine tissue manipulation
• Adson tissue forceps — skin and subcutaneous tissue during wound closure

Scissors

• Potts-Smith scissors (angled on flat, 22.5 degrees) — for arteriotomy and venotomy extension; the angled jaw allows precise cut direction without the handle blocking the anastomosis view
• Iris scissors, curved, 11 cm — adventitial trimming and fine tissue dissection around small vessels
• Metzenbaum scissors, straight, 14 cm — vessel dissection and periadventitial tissue removal

Retractors

• Weitlaner self-retaining retractor (small, 10 cm) — holds the skin and subcutaneous wound open for the forearm approach
• Army-Navy retractors (pair) — handheld for exposure during vessel identification

Vessel Preparation Instruments

• Vascular dilators (coronary type, 1.0 to 3.5 mm) — for gentle dilation of the cephalic vein lumen before anastomosis to ensure patent flow
• Mosquito clamps (4 pcs, curved) — fine hemostasis and wound exposure

Why Instrument Quality Determines Anastomosis Outcomes

The AV fistula anastomosis is typically 6 to 10 mm in length on vessels under 3 mm in diameter. A needle holder whose jaws are misaligned by even 0.2 mm will torque the needle during suture placement, causing the suture to exit at an incorrect angle. Over a 12-stitch anastomosis, this compounds into a narrowed or angulated anastomotic lumen that affects early fistula maturation.

Castroviejo needle holders from Fizza Surgical are ground to jaw alignment tolerance within 0.1 mm. Spring mechanism tension is calibrated to 250 to 300 grams of closing force — firm enough for 7-0 polypropylene but light enough that the surgeon does not fatigue after multiple passes.

Bulldog Clamp Selection

Not all bulldog clamps have the same jaw pressure. Low jaw pressure (under 60 g/mm) is correct for 2 to 3 mm diameter vessels — higher pressure damages the intima and increases anastomotic thrombosis risk. Fizza Surgical bulldog clamps are calibrated to 40 to 80 g/mm jaw pressure range, appropriate for peripheral vascular AV fistula work. Each clamp is pressure-tested before shipment.

Certification and Supply

AV fistula sets are manufactured under ISO 13485:2016 with CE marking from 316L stainless steel. Used by vascular surgery departments in dialysis centers and teaching hospitals across Pakistan, the Gulf Cooperation Council, and Europe. Contact Fizza Surgical for catalog access or to request a sample tray.

AV Fistula Instrument Set — 2026 Update

Vascular access surgery for dialysis continues to grow with the rising global burden of end-stage renal disease, and the AV fistula remains the gold-standard access because of its lower infection and thrombosis rates compared with grafts and catheters. The instrument requirements have stayed remarkably stable: the case still turns on fine vascular control, atraumatic tissue handling, and precise microsuture placement.

Two instrument choices most affect the anastomosis quality. First, the needle holder — a fine Castroviejo pattern gives the controlled, low-profile grip needed for 6-0 and 7-0 polypropylene on a small radial artery and cephalic vein. Second, the vascular clamps — atraumatic bulldog or micro-DeBakey clamps occlude the vessels without crushing the intima, a distinction explained in our comparison of DeBakey and Satinsky vascular clamps.

AV Fistula Set — Core Instruments

Vessel Calibration and Dilation Before the Anastomosis

One step gets skipped in fistula sets specified from a generic vascular list: graduated dilators.

A cephalic vein handled during dissection will spasm. So will a radial artery. A vein that measures 2.0 mm on the table after handling may relax to 3.0 mm once the anastomosis is complete and flow is established — and a suture line built to the spasmed calibre is a suture line built too tight. Pre-anastomotic calibration with graduated dilators tells the surgeon what the vessel actually is rather than what it currently looks like.

Garrett-pattern vascular dilators, in 0.5 mm steps from 1.0 mm to 5.0 mm, are the standard instrument for this. The 14 cm set is appropriate for upper-limb access surgery; the malleable shaft lets the tip follow the vein’s curve without levering against the wall. Sizing, technique and the intimal-injury failure modes are set out in our guide to Garrett vascular dilators and graduated vessel dilation.

Two rules govern their use in fistula surgery. Advance one size at a time — skipping a step is what lifts intima, and an intimal flap at a fistula anastomosis is a stenosis waiting to declare itself at six weeks. And treat spasm pharmacologically first, with topical papaverine or dilute verapamil, so the dilator confirms calibre rather than forcing it.

Dilator Sizing Against Common Fistula Targets

A set of nine dilators with its holding rack adds little cost to a fistula tray and removes a genuine source of early failure. Specify the rack explicitly — loose dilators in a tray collide, and a burred tip turns an atraumatic instrument into a cutting one.