Back to Blog
Instruments & Equipment7 min read

Vascular Instrument Set Overview: Bulldog Clamps, Potts Scissors, and Vessel Loops

A breakdown of the specialized instruments found on a vascular surgery tray and how they differ from general surgery instrumentation.

January 14, 2026

Why Vascular Instruments Are Built Differently

Vascular tissue is thin-walled, delicate, and easily damaged by instruments designed for tougher structures, which is why vascular surgery relies on a dedicated instrument set built around the goal of occluding, opening, and repairing blood vessels without causing additional trauma to the vessel wall itself.

Atraumatic Vascular Clamps

Bulldog clamps are small, spring-loaded clamps used to temporarily occlude smaller vessels, applying just enough pressure to stop blood flow without crushing the vessel wall, and they come in a range of sizes matched to vessel diameter. Larger vascular clamps, including Fogarty and DeBakey vascular clamps, have specialized atraumatic jaw serrations, often a fine diamond or longitudinal pattern, designed to grip without cutting or crushing, unlike the interlocking teeth of a standard Kocher clamp used in general surgery.

Potts Scissors and Vascular Dissection Instruments

Potts scissors, distinguished by their sharply angled blade tips, are designed specifically for creating precise arteriotomy incisions in vessel walls, allowing the surgeon to open a vessel at a controlled angle for procedures like endarterectomy or graft anastomosis. Fine DeBakey tissue forceps, with their atraumatic ridged tips, are the standard grasping instrument for handling vessel walls without crushing delicate tissue during dissection and suturing.

Vessel Loops and Umbilical Tapes

Vessel loops, thin colored silicone tubing, and umbilical tapes are passed around vessels to allow the surgeon to gently retract and control a vessel without fully clamping it, useful during dissection when full occlusion is not yet needed or when the surgeon wants a rapid, atraumatic way to briefly control flow. These are typically color-coded by the surgical tech, blue for veins and red or another contrasting color for arteries, to help the entire team track which structure is which throughout the case.

Vascular Suture and Needle Holders

Vascular anastomosis requires fine, non-absorbable monofilament suture, typically ranging from very fine sizes for smaller vessels to slightly larger sizes for major vessels like the aorta, and vascular needle holders are designed with finer, more delicate jaws than the heavier needle holders found on a general laparotomy tray. Handling this suture correctly, without kinking or damaging it before use, is a skill vascular-focused surgical techs develop with experience.

  • Bulldog and DeBakey vascular clamps occlude vessels without crushing the wall
  • Potts scissors create precise, angled arteriotomy incisions
  • Vessel loops allow atraumatic vessel control and are typically color-coded by structure type
  • Vascular suture is fine, non-absorbable, and requires careful, damage-free handling

Handling and Protecting Vascular Suture

Vascular suture, being extremely fine, requires deliberate handling to avoid damage before it is ever used, and the surgical technologist should avoid letting fine vascular suture strands cross or tangle with heavier instruments on the back table, since even minor nicks or kinks in the suture can weaken it enough to fail under the tension of a vascular anastomosis. Many experienced vascular surgical technologists develop a habit of organizing suture in a dedicated, protected area of the back table specifically to prevent this kind of accidental damage during a busy case.

Needle handling with vascular suture also deserves particular care, since the needles themselves are correspondingly fine and can bend or become damaged if mishandled, compromising the precision needed for accurate vessel wall penetration during suturing. Passing vascular needles with the same deliberate care given to the suture itself reflects the overall standard of precision this specialty demands throughout every part of the case.

Handling and Protecting Vascular Suture

Vascular suture, being extremely fine, requires deliberate handling to avoid damage before it is ever used, and the surgical technologist should avoid letting fine vascular suture strands cross or tangle with heavier instruments on the back table, since even minor nicks or kinks in the suture can weaken it enough to fail under the tension of a vascular anastomosis. Many experienced vascular surgical technologists develop a habit of organizing suture in a dedicated, protected area of the back table specifically to prevent this kind of accidental damage during a busy case.

Needle handling with vascular suture also deserves particular care, since the needles themselves are correspondingly fine and can bend or become damaged if mishandled, compromising the precision needed for accurate vessel wall penetration during suturing. Passing vascular needles with the same deliberate care given to the suture itself reflects the overall standard of precision this specialty demands throughout every part of the case.

Vascular surgical technologists also learn to anticipate the specific rhythm of a vascular anastomosis, understanding that the surgeon will typically request a steady, uninterrupted supply of suture and instrument exchanges throughout this portion of the case, and disrupting that rhythm with a fumbled handoff can meaningfully affect the technical quality of a repair that depends heavily on consistent, unhurried suturing technique.

Precision as a Defining Professional Trait

Vascular surgery instrumentation demands a level of precision and careful handling that, once developed, tends to elevate a surgical technologist's overall technique across every other specialty they support. Many experienced vascular-focused technologists describe this specialty as having meaningfully sharpened their general instrument handling discipline.

Building this precision-focused mindset early, whether or not vascular surgery becomes your primary specialty, reflects a transferable professional quality worth cultivating deliberately throughout your surgical technology training and early career.

Review related anatomy in our vascular anatomy for aortic aneurysm repair post, and see our suture materials cheat sheet for graduated suture sizing across specialties. Create a free account to explore more specialty instrument content.

This content is for educational purposes only. SurgicalTechPrep is independently developed and is not affiliated with, endorsed by, or sponsored by NBSTSA, AST, or any official certification body. All clinical information should be verified with current standards of practice.

Ready to put this into practice?

SurgicalTechPrep has thousands of flashcards, timed mini exams, and full-length practice exams for every CST domain.