Ferris Smith Kerrison Punch up 4mm, 18cm

Clinical Application

Designed for precise removal of small bone and ligament fragments in confined spinal and neurosurgical corridors, this up-biting Kerrison is commonly used during laminotomy, foraminotomy, laminectomy and microdiscectomy procedures. The 4 mm bite permits incremental resection, allowing the surgeon to carefully undercut laminar bone and ligamentum flavum while preserving surrounding neural structures. The 18 cm shaft provides reach into deep posterior exposures with minimal soft-tissue retraction.

Design & Configuration

The up-biting orientation positions the cutting edge on the superior aspect of the tip, which is advantageous when working from an inferior-to-superior trajectory or when undercutting beneath the lamina. A compact 4 mm tip offers controlled, small-volume bites for staged bone removal, reducing the risk of aggressive resection in tight operative fields. The 18 cm overall length balances reach with tactile control, enabling access to deeper levels without excessive hand–eye distance.

Instrument Specifications

• Instrument type: Kerrison punch (up-biting)
• Pattern / model: Ferris-Smith
• Configuration: up-biting
• Size: 4 mm bite
• Length: 18 cm
• Typical uses: laminotomy, foraminotomy, laminectomy, microdiscectomy
• Construction: surgical-grade stainless steel
• Reusable: yes, autoclavable

Material & Construction

Manufactured from surgical-grade stainless steel with precision-ground cutting surfaces to maintain bite sharpness and durability over repeated sterilization cycles. The finish resists corrosion and facilitates cleaning; the reusable design supports standard steam sterilization protocols used in hospital and ASC instrument processing.

Quality & Compliance

Manufactured by FDA-registered OEM facilities and produced under strict quality control standards.

Brand Comparison

Comparable in form and function to equivalent instruments offered by major US medical suppliers.

Availability & Returns

• In-stock lead time: ships within ~1 week
• Out-of-stock lead time: 2–4 weeks
• Returns: 30-day return policy