The Neurosurgery Rotating Kerrison Shaft 6″ Bayonet 4mm 40° Up is a high-quality modular neurosurgical instrument designed for precise bone resection during complex spinal and cranial procedures. Specifically engineered for use with the 70-2390 Micro Handle, this detachable rotating shaft combines advanced engineering, ergonomic handling, and consistent cutting performance to meet the demanding requirements of modern neurosurgery. It is an indispensable instrument for neurosurgeons and spine specialists who require controlled bone removal while protecting surrounding neural and soft tissue structures.
The instrument features a 6-inch (150mm) Bayonet shaft, providing outstanding maneuverability and enhanced visualization during microsurgical procedures. The Bayonet configuration offsets the surgeon’s hand away from the direct line of sight, creating an unobstructed view of the operative field when working under a surgical microscope or magnification system. This ergonomic design improves surgical precision, enhances comfort, and allows greater control when operating within deep or narrow anatomical corridors.
Equipped with a 4mm footplate, this Kerrison shaft provides an excellent balance between precision and cutting efficiency. The 4mm bite size enables controlled removal of moderate amounts of cortical and cancellous bone while preserving surrounding anatomical structures. It is particularly effective for procedures that require accurate decompression without excessive bone removal, making it a versatile choice for a wide range of neurosurgical applications.
The 40° up-biting jaw is specifically designed to provide gradual upward access beneath the lamina and adjacent bony structures. This jaw configuration allows surgeons to remove bone with exceptional control while maintaining excellent visualization of the surgical site. The 40° angle offers smooth access during decompression procedures and is especially beneficial when working around sensitive neurological tissues where precision is essential.
A key feature of this instrument is its 360° rotating shaft mechanism, allowing the working tip to rotate freely without requiring the surgeon to reposition the handle. This rotational capability enables precise alignment of the cutting jaw with the surgical anatomy, improving ergonomics and facilitating efficient bone removal from difficult-to-reach areas. By minimizing unnecessary wrist movement, the rotating design helps reduce surgeon fatigue during lengthy procedures while improving procedural accuracy.
Manufactured from premium surgical-grade stainless steel, the Rotating Kerrison Shaft offers outstanding strength, corrosion resistance, and long-term clinical durability. Precision machining ensures accurate jaw alignment, smooth rotational movement, and dependable cutting performance throughout repeated surgical use. The polished stainless steel finish supports easy cleaning and complies with modern hospital sterilization and infection control protocols.
Designed specifically for compatibility with the 70-2390 Micro Handle, this modular shaft provides a secure locking mechanism that enables rapid attachment and removal during surgery. The interchangeable design allows surgeons to switch between different shaft lengths, bite sizes, and jaw configurations while using the same handle, improving workflow efficiency and reducing instrument inventory requirements.
The Neurosurgery Surgical Rotating Kerrison Shaft is widely used during laminectomy, laminotomy, spinal decompression, cervical spine surgery, thoracic spine surgery, lumbar spine surgery, foraminotomy, microdiscectomy, minimally invasive spine surgery, cranial bone removal, and skull base procedures. The 4mm, 40° up-biting jaw offers excellent versatility for controlled bone excision while protecting adjacent neural structures and maintaining surgical precision.
As a reusable surgical instrument, the Rotating Kerrison Shaft is fully compatible with standard hospital sterilization methods, including steam autoclaving. Its premium stainless steel construction ensures dependable long-term performance while maintaining precise cutting action and smooth mechanical operation after repeated cleaning and sterilization cycles.
The Neurosurgery Surgical Rotating Kerrison Shaft, 6″ (150mm) Bayonet, 4mm, 40° Up, Stainless Steel, Requires 70-2390 Micro combines advanced engineering, ergonomic Bayonet design, modular compatibility, and precision cutting performance. It is an essential instrument for neurosurgeons and spine surgeons seeking reliable bone removal during complex spinal and cranial procedures.
Key Features
- 6″ (150mm) Bayonet shaft provides excellent maneuverability in confined operative fields
- 4mm footplate enables precise and controlled bone removal
- 40° up-biting jaw improves access beneath the lamina and surrounding bone
- 360° rotating shaft allows precise jaw positioning without repositioning the handle
- Bayonet design enhances visualization during microscope-assisted surgery
- Compatible with the 70-2390 Micro Handle
- Precision-machined cutting edges provide smooth and accurate bone excision
- Manufactured from premium surgical-grade stainless steel
- Ideal for neurosurgery, spinal surgery, cranial surgery, and microsurgical procedures
- Corrosion-resistant construction ensures long-term durability
- Fully reusable and compatible with standard autoclave sterilization
- Designed for hospitals, spine centres, and specialized neurosurgical operating theatres
Product Specifications Table
| Specification | Details |
|---|---|
| Product Name | Neurosurgery Surgical Rotating Kerrison Shaft |
| Instrument Type | Detachable Rotating Kerrison Shaft |
| Specialty | Neurosurgery / Spine Surgery / Microsurgery |
| Overall Length | 6″ (150mm) |
| Shaft Style | Bayonet |
| Bite Size | 4mm |
| Jaw Direction | 40° Up |
| Rotation | 360° Rotating Shaft |
| Material | Surgical-Grade Stainless Steel |
| Compatible Handle | 70-2390 Micro |
| Reusability | Yes |
| Sterilization | Autoclave Compatible |
| Finish | Satin / Polished Stainless Steel |
FAQs
1. What is the Neurosurgery Surgical Rotating Kerrison Shaft used for?
It is designed for precise bone removal during neurosurgical and spinal procedures, including laminectomy, laminotomy, spinal decompression, foraminotomy, microdiscectomy, and cranial surgery.
2. What are the advantages of the 4mm, 40° up-biting jaw?
The 4mm bite provides controlled removal of moderate amounts of bone, while the 40° up-biting jaw offers gradual access beneath the lamina for accurate decompression with minimal disruption to surrounding tissues.
3. Why is the Bayonet shaft design preferred in neurosurgery?
The Bayonet shaft offsets the surgeon’s hand from the operative field, providing improved visualization under a surgical microscope and greater precision in deep or narrow surgical corridors.
4. Is this shaft compatible with the 70-2390 Micro Handle?
Yes. This detachable rotating shaft is specifically designed for secure compatibility with the 70-2390 Micro Handle, allowing quick attachment and interchangeability with other compatible Kerrison shafts.
5. What material is the Rotating Kerrison Shaft manufactured from?
The instrument is manufactured from premium surgical-grade stainless steel, providing excellent corrosion resistance, mechanical strength, and long-term durability for repeated clinical use.
6. Can this instrument be sterilized and reused?
Yes. The Rotating Kerrison Shaft is fully reusable and compatible with repeated autoclave sterilization and standard hospital cleaning and sterilization procedures while maintaining cutting precision and mechanical performance.
7. Why do neurosurgeons choose this Rotating Kerrison Shaft?
Neurosurgeons choose this instrument for its ergonomic Bayonet design, precise 4mm cutting capacity, 40° up-biting jaw, smooth rotating mechanism, compatibility with the 70-2390 Micro Handle, and dependable stainless steel construction for advanced spinal and cranial surgery.

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