Ferris-Smith-Kerrison Punch down 1mm, 18cm

Clinical Application

A down‑biting Kerrison designed for precise, incremental removal of cortical and cancellous bone and ligamentous tissue in confined operative corridors. The 1 mm bite allows fine control when working adjacent to the dura, nerve roots, or neural foramina, making it well suited for posterior spinal decompression procedures (lumbar, thoracic, cervical), foraminotomy, and other neurosurgical or orthopedic situations requiring delicate bone nibbling.

Design & Configuration

The down‑biting orientation directs the cutting action away from the surgeon’s line of sight and toward tissue located inferior to the instrument axis, which facilitates safe bone work beneath overhanging anatomy and close to neural structures. The 18 cm overall length provides reach into deeper operative fields while maintaining tactile feedback at the handle. A 1 mm bite size enables controlled, staged removal of small bone segments, reducing the risk of aggressive resection and improving precision in tight spaces.

Instrument Specifications

• Instrument type: Kerrison punch (Ferris‑Smith modification)
• Configuration: Down‑biting tip; slender shaft for depth access
• Working bite: 1 mm
• Overall length: 18 cm
• Typical use: Spinal decompression, foraminotomy, microdiscectomy, neurosurgical bone removal
• Material: Surgical‑grade stainless steel
• Reusable: Yes

Material & Construction

Manufactured from surgical‑grade stainless steel with precision‑ground cutting edges to deliver consistent bite and reliable performance. Surfaces are finished to resist corrosion and to withstand repeated cycles of cleaning, sterilization, and clinical use. The hinged mechanism and tip are engineered to preserve tactile feedback for controlled excision.

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