Kerrison Bayonet Rongeur – Precision in Neurosurgery & Spine Care

Advanced Visualization for Spinal & Cranial Decompression with Kerrison Bayonet Rongeur

The Kerrison Bayonet Rongeur is a masterpiece of microsurgical engineering, specifically designed to overcome the challenges of deep-seated surgical corridors. The unique bayonet-shaped shaft offsets the handle from the line of sight, providing neurosurgeons and orthopedic spine specialists with an unobstructed view of the cutting edge under a surgical microscope or loupes.

Whether performing a laminectomy, discectomy, or foraminotomy, this instrument delivers the biting power and precision required to safely remove bone near delicate neural structures.

Technical Specifications

Bayonet Design: Offset handle for maximum visibility in narrow incisions.
Bite Sizes: 1.0 mm, 2.0 mm, 3.0 mm, 4.0 mm, and 5.0 mm.
Jaw Angle: 40° Upward angle (standard) for optimal decompression.
Shaft Curvature: 130° specialized curvature to navigate complex anatomy.
Working Lengths: Available in 12 cm, 15 cm, 18 cm, and 20 cm options.
Bone Ejection: Integrated ejector pin mechanism for automatic bone chip removal.

Enhanced Variations & Specialty Configurations

To accommodate the diverse requirements of modern neurosurgery, we offer several specialized variations inspired by global clinical standards:

Thin-Footplate Series: Features a low-profile base for safe insertion into the spinal canal where space between the lamina and dura is extremely limited.
Tungsten Carbide (TC) Jaws: Equipped with ultra-hard TC inserts for a sharper, cleaner bite and significantly longer life-cycle of the cutting edge.
Ceramic Coating (K-Coat): A specialized black ceramic finish that increases surface hardness and provides a non-reflective surface, essential for high-intensity microscope lighting.
90° Vertical Bite: In addition to the standard 40° angle, we offer 90° upward biting jaws for specific anatomical approaches.
Detachable / Clean-Kerrison: A modular design that allows the instrument to be opened or dismantled for thorough cleaning and removal of bio-burden within the sliding mechanism.
Ergonomic Pistol Grip: Advanced handle designs featuring weighted balance to reduce hand fatigue during long multi-level spinal procedures.

Why Choose the ViviStar Kerrison?

Micro-Surgical Accuracy: Perfectly aligned jaws ensure a clean “bite” without tearing or shredding surrounding tissue.
Premium Material: Forged from high-grade AISI-420 surgical stainless steel for maximum tensile strength.
Reliable Performance: Smooth trigger action prevents “stutter” or mechanical sticking during bone removal.
Full Compliance: Manufactured under ISO 13485 and CE certifications, ensuring safety for both patient and clinician.