AO Drill Bits – Cannulated Hollow Drill Bits are specialized orthopedic instruments designed for controlled bone drilling during procedures involving guidewires, cannulated screws, and other compatible fixation systems. Their hollow cannulated construction allows a guidewire to pass through the center of the drill bit, helping the surgeon maintain the planned drilling trajectory during selected orthopedic procedures.
The cannulated design is particularly useful when accurate alignment is important. A guidewire can first be positioned according to the surgical plan, after which the drill bit can be advanced over the wire. This configuration helps support controlled preparation of the bone while maintaining the established trajectory. The exact drilling technique, drill diameter, and compatible guidewire should always correspond to the selected fixation system and manufacturer specifications.
Constructed from stainless steel, these orthopedic drill bits are designed for repeated professional use when properly maintained and reprocessed. Stainless steel provides a durable instrument platform suitable for routine surgical environments while offering resistance to corrosion when appropriate cleaning, drying, handling, and sterilization procedures are followed.
The working end is designed for efficient bone preparation, while the cannulated shaft provides the central passage required for guidewire-assisted drilling. The AO-compatible instrument configuration makes these drill bits suitable for orthopedic instrument sets used with compatible fixation systems. They may be used during procedures involving fracture fixation, osteotomy, reconstructive orthopedic surgery, and other applications where cannulated drilling is indicated.
Cannulated drill bits are commonly used in conjunction with orthopedic implants such as cannulated screws. Depending on the surgical system, drilling may be required before screw placement to prepare the appropriate bone channel. Some systems may also require specific drill guides, sleeves, depth gauges, or other accessories. Compatibility should therefore be confirmed before use.
The design can also help improve workflow when multiple components of an orthopedic fixation system are used together. A correctly selected drill bit allows the surgical team to prepare the bone according to the dimensions specified by the implant system. Different procedures may require different drill diameters, lengths, or cutting configurations, so the appropriate size should be selected based on the implant manufacturer’s specifications and the patient’s anatomy.
Before use, each drill bit should be inspected for cutting-edge damage, bending, deformation, blockage of the cannulation, corrosion, or excessive wear. The central cannulation should remain clear so that the intended guidewire can pass smoothly through the instrument. Damaged or excessively worn drill bits should not be used.
After use, the instruments should be cleaned promptly to remove bone debris, tissue, and other surgical contaminants. Particular attention should be given to the internal cannulated channel because retained debris can interfere with cleaning and subsequent use. Appropriate brushes or cleaning accessories should be used when recommended by the manufacturer.
For reusable instruments, sterilization should be performed using a validated method compatible with the instrument material and according to the manufacturer’s reprocessing instructions and facility infection-control protocols. Proper cleaning, inspection, lubrication where applicable, drying, and sterilization can help maintain instrument performance and service life.
AO Drill Bits provide a practical option for orthopedic teams requiring cannulated drilling capability. Their stainless steel construction, hollow guidewire channel, and orthopedic-focused design make them suitable for selected bone preparation and fixation procedures where controlled, guidewire-assisted drilling is required.
Key Features
- Cannulated hollow design for guidewire-assisted drilling
- Designed for selected orthopedic surgical procedures
- Stainless steel construction
- Supports controlled bone preparation
- Central cannulation accommodates compatible guidewires
- Suitable for use with compatible cannulated fixation systems
- Designed for accurate drilling along an established guidewire trajectory
- Useful for selected fracture fixation and osteotomy procedures
- Compatible with appropriate orthopedic drill systems and accessories
- Durable construction for professional surgical environments
- Available in different sizes for system-specific applications
- Suitable for cleaning and sterilization according to manufacturer instructions
Product Specifications
| Specification | Details |
|---|---|
| Product Type | AO Cannulated Drill Bit |
| Instrument Type | Hollow Orthopedic Drill Bit |
| Design | Cannulated |
| Material | Stainless Steel |
| Primary Function | Bone Drilling & Preparation |
| Guidewire Compatibility | Compatible Guidewire Required |
| Surgical Specialty | Orthopedic Surgery |
| Applications | Fracture Fixation, Osteotomy & Bone Preparation |
| Fixation Systems | Compatible Cannulated Systems |
| Construction | Hollow Shaft |
| Reusable | Yes, when supplied as a reusable instrument |
| Sterilization | Follow Manufacturer-Validated Instructions |
FAQs
What are AO cannulated drill bits used for?
AO cannulated drill bits are used for controlled bone drilling in selected orthopedic procedures where drilling is performed over a compatible guidewire.
What does cannulated mean in an orthopedic drill bit?
Cannulated means the drill bit has a hollow central passage through its shaft. This allows a compatible guidewire to pass through the instrument during drilling.
What are cannulated drill bits used for in fracture fixation?
They can be used to prepare bone for compatible cannulated screws and other fixation components during selected fracture fixation procedures.
Are these AO drill bits made from stainless steel?
Yes. These AO Drill Bits are described as stainless steel orthopedic instruments designed for professional surgical applications.
Can the drill bit be used over a guidewire?
Yes, the cannulated design allows use over a compatible guidewire. The guidewire diameter and drill bit specifications must match the requirements of the selected orthopedic system.
Are cannulated drill bits reusable?
When supplied as reusable surgical instruments, they can be cleaned, inspected, and sterilized according to the manufacturer’s validated reprocessing instructions.
How should cannulated drill bits be cleaned?
The external cutting surfaces and internal cannulation should be thoroughly cleaned to remove bone debris and surgical contaminants. Appropriate cleaning equipment and procedures should follow the manufacturer’s instructions.
How do I select the correct cannulated drill bit size?
The appropriate diameter and length should be selected according to the implant system, compatible guidewire, surgical technique, and patient’s anatomy. Always verify the specifications before use.

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