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The Roller Knife 3mm Angled 90° to Shaft is a specialized ear knife designed for precision work in otologic and middle ear procedures. Its distinctive 3mm roller blade is positioned at a 90-degree angle to the shaft, creating a perpendicular working configuration that allows the surgeon to approach the operative field from a controlled orientation. The instrument is classified as an ear knife in medical device references and is available in a reusable configuration.
The 3mm roller design provides a compact working surface suitable for delicate procedures where controlled contact and accurate positioning are important. Compared with a conventional straight knife, the 90-degree relationship between the roller blade and shaft changes the approach angle of the working end. This configuration can be useful when the surgeon needs to access a specific anatomical surface without placing the shaft directly in line with the intended working direction.
The angled working end is particularly relevant to otologic surgery, where visibility, instrument positioning, and access within a confined anatomical field are important considerations. The roller blade provides a defined 3mm working diameter while the perpendicular shaft arrangement allows the instrument to be manipulated from a different direction than an in-line roller knife. A corresponding in-line 3mm roller knife is also cataloged separately, emphasizing the importance of selecting the correct working configuration for the intended technique.
This instrument is suitable for professional ENT and otology instrument sets and may be used in procedures involving the middle ear according to the surgeon’s preferred technique and the specific requirements of the procedure. Medical device references identify the 3mm, 90-degree configuration as an ear knife, while comparable Schuknecht roller knife listings identify the instrument family specifically for otologic use.
The compact roller working end and angled shaft provide a specialized combination of precision and access. The design can help the surgeon maintain a controlled hand position while directing the working end toward the desired anatomical area. This is especially valuable in microsurgical environments where small changes in instrument orientation can affect visibility and working access.
For surgical instrument processing, the reusable configuration should be cleaned, inspected, and sterilized according to the applicable manufacturer’s validated instructions for use and the healthcare facility’s established sterilization protocol. Particular attention should be given to the roller working end during inspection to ensure that it remains properly aligned and free from damage or deformation.
The Roller Knife 3mm Angled 90° to Shaft is therefore a specialized choice for ENT professionals seeking a fine roller-style ear knife with a perpendicular working configuration. Its 3mm roller blade and 90-degree shaft relationship provide a dedicated geometry for controlled otologic instrument handling.
Key Features
- 3mm roller knife working end
- Working end angled 90° to the shaft
- Specialized ENT and otologic instrument
- Designed for precision middle ear procedures
- Compact roller-style working profile
- Provides a perpendicular approach to the working field
- Suitable for controlled surgical manipulation
- Classified as an ear knife
- Reusable instrument configuration
- Suitable for professional ENT instrument sets
- Designed for delicate otologic applications
- Requires cleaning and sterilization according to applicable IFU
Product Specifications
| Specification | Details |
|---|---|
| Product Name | Roller Knife 3mm Angled 90° to Shaft |
| Instrument Type | Roller Knife / Ear Knife |
| Specialty | ENT / Otology |
| Working Diameter | 3 mm |
| Shaft Relationship | 90° to Shaft |
| Working End | Roller Blade |
| Primary Application | Otologic / Middle Ear Procedures |
| Configuration | Angled |
| Reusable | Yes |
| Sterilization | Follow applicable manufacturer’s IFU |
FAQs
What is a 3mm Roller Knife used for?
A 3mm Roller Knife is a specialized ear knife intended for precision work during ENT and otologic procedures, particularly procedures involving the middle ear.
What does “90° to shaft” mean?
It means the 3mm roller working end is positioned perpendicular to the instrument shaft, creating a 90-degree working orientation.
What is the size of the roller blade?
The roller working end has a diameter of approximately 3mm.
Is this an ENT instrument?
Yes. Medical device references classify the 3mm roller knife with a 90-degree shaft angle as an ear knife, making it appropriate for ENT and otologic instrument sets.
How is this different from an in-line roller knife?
The in-line version has the 3mm roller working end aligned with the shaft, while this model positions the roller at 90 degrees to the shaft. These different geometries provide different approaches to the surgical field.
Is the Roller Knife reusable?
Yes. The documented 3mm, 90-degree configuration is listed as reusable.
How should the instrument be sterilized?
The instrument should be cleaned, inspected, and sterilized according to the applicable manufacturer’s instructions for use and the healthcare facility’s validated instrument-processing protocol.