Storz Lancaster Eye Speculum | Model E4056 | 15.0 mm Solid Smooth Retraction Blades | Adjustable Locking Thumb Screw Control | Fixed Mechanical Spring-Assisted Temporal Expansion | Reusable Ophthalmic Micro-Surgical Instrumentation Asset | Pre-Owned Hospital Surgery Stock (1/EA)

The Storz E4056 is a professional-grade, hospital-level ophthalmic instrument expertly engineered to maintain hands-free, uniform exposure of the globe by retracting the upper and lower eyelids during anterior segment surgeries. Part of an industry-standard ophthalmic micro-surgery portfolio, this Lancaster-style speculum features 15.0 mm wide solid, smooth blades designed to distribute physical pressures evenly across the palpebral margins, preventing lid notched deformities or localized crushing. The mechanical architecture uses a fixed, outward-sprung chassis that delivers constant temporal expansion force, paired with an integrated manual thumbscrew locking collar. This mechanism allows the ophthalmic surgeon or surgical assistant to widen the blade spread incrementally and lock the arms rigidly at the exact dilation width required, neutralizing sudden patient blinking reflexes or extraocular muscle spasms. Forged from high-tensile, passivated surgical-grade stainless steel with a non-glare satin finish, this non-electronic mechanical instrument is fully calibrated to handle high-turnover automated washer debridement, dynamic ultrasonic cleaning, and repeated strict steam autoclave sterilization cycles inside central sterile supply departments (CSSD).

Technical Specifications

• Instrument Design Typology: Lancaster Pattern Eye Speculum

• Active Retraction Blade Sizing: 15.0 mm Width x 5.0 mm Depth solid smooth blades

• Mechanism Class: Spring-assisted manual expansion with an integrated adjustable thumb screw lock

• Structural Orientation Profile: Standard temporal placement layout with low-profile outer wings

• Total Instrument Profile Length: 2.75 Inches nominal profile (7.0 cm total structural footprint)

• Material Composition Matrix: Premium, passivated high-impact surgical stainless steel