Description

The Graefe Muscle Hook, also known as the Von Graefe Strabismus Hook, is an essential surgical instrument in the field of ophthalmology. It is specifically designed for the precise manipulation, isolation, retraction, and elevation of extraocular muscles during eye surgeries, such as strabismus procedures. This tool is invaluable for surgeons aiming to expose, dissect, and reattach muscle tissue with minimal trauma.

Design Features

• Handle: The instrument features a long, slender handle with a flat or flattened design, providing controlled handling and a secure grip. The handle often includes a serrated surface to enhance grip stability.
• Blade: The hook-shaped blade is curved and available with either a blunt bulb or sharp tip, depending on the variant. This design minimizes tissue trauma and prevents slippage during use.
• Finish: Available in a highly polished or dull/matt finish to reduce glare and minimize tissue drag.

Size Variants

The Graefe Muscle Hook is available in multiple sizes, commonly referred to as Size 1, Size 2, and Size 3, or Small, Medium, and Large. This variety allows surgeons to select the appropriate size for engaging the full width of the muscle. Typical dimensions include:

• Size 1: Hook 1.00 x 8.00 mm, overall length 135 mm
• Size 2: Hook 9.0–10.5 mm, overall length 135–140 mm

Material and Durability

Crafted from surgical-grade stainless steel, with options for German or Japanese Series 300/400, and titanium versions, the Graefe Muscle Hook is rustproof, corrosion-resistant, and passivated for enhanced durability. It is designed to be reusable and withstands repeated sterilization, being autoclavable but supplied non-sterile.

Compliance and Certification

This instrument meets rigorous quality standards, being CE marked, FDA registered, and ISO 9001 and ISO 13485 certified. It complies with ASTM-F899 standards and is classified as a Class I, Class A medical device, ensuring its suitability for professional use in ophthalmic surgeries.

Professional Application

The Graefe Muscle Hook is intended for use by licensed healthcare professionals and is often included in standard strabismus surgical instrument trays. Its design accommodates various surgical preferences and anatomical considerations, making it a versatile tool in vitreoretinal and general ophthalmic procedures involving extraocular muscle manipulation.