Ambler Surgical Kelly Descemet Membrane Punch | 0.75mm | 7220E

The Ambler Surgical 7220E is a high-precision microsurgical instrument engineered for the 2026 standards of glaucoma and corneal surgery. Specifically designed for Trabeculectomy and Descemet membrane procedures, this punch provides the surgeon with a consistent, clean, and exact 0.75 mm round sclerostomy or membrane perforation.

Unlike manual blade techniques, the squeeze-action mechanism of the 7220E ensures a standardized hole size with smooth, non-ragged edges, which is critical for maintaining predictable aqueous outflow and reducing the risk of postoperative scarring or fibrosis.

Key Performance Features

• Standardized 0.75 mm Aperture: Produces a perfectly circular 0.75 mm punch, providing the "Goldilocks" size for filtration—large enough to prevent immediate closure, yet small enough to maintain controlled intraocular pressure (IOP).

• High-Tactility Squeeze Action: The ergonomic handle design provides 1:1 tactile feedback. The smooth spring-tensioned squeeze allows for effortless, one-handed operation while maintaining absolute stability under the surgical microscope.

• Burr-Free Cutting Surfaces: Ambler’s precision-milled stainless steel tip ensures a "shearing" cut rather than a "tearing" action. This preserves the structural integrity of the surrounding tissue and promotes cleaner healing at the filtration site.

• Optimal 5 1/8" Profile: The overall length and slender neck are engineered to provide maximum visibility of the distal tip, ensuring the surgeon can precisely visualize the punch site even in deep-set eyes or narrow surgical fields.

• Premium Surgical Stainless: Forged from high-grade stainless steel, this reusable instrument is designed to withstand thousands of sterilization cycles without losing the razor-sharp tolerances required for membrane punching.

Technical Specifications

• Manufacturer: Ambler Surgical

• Model / REF: 7220E

• Type: Kelly Descemet Membrane Punch

• Punch Size: 0.75 mm (Round)

• Handle Style: Squeeze-Action

• Overall Length: 5 1/8" (13 cm)

• Material: Surgical-grade Stainless Steel

• Format: Reusable

Clinical & Institutional Advantages

• Repeatable Surgical Outcomes: Eliminates the variability associated with free-hand incisions, ensuring every sclerostomy is identical in size and geometry.

• Minimized Tissue Trauma: The precise shearing action minimizes peripheral tissue damage, which is essential for reducing the inflammatory response during the critical early postoperative healing phase.

• High ROI for ASCs: As a durable, reusable instrument, the 7220E offers a superior long-term value proposition for Ambulatory Surgery Centers (ASCs) compared to disposable alternatives.

• Strategic Procurement: Acquiring this "Excellent Condition" Ambler instrument allows a facility to maintain top-tier ophthalmic standards while optimizing its surgical instrument budget.

Ideal Applications

• Glaucoma Surgery: Creating a precise sclerostomy during Trabeculectomy.

• Corneal Procedures: Specialized Descemet membrane manipulation or punching.

• Academic/Teaching Environments: Ideal for demonstrating standardized filtration techniques to residents and fellows.

Condition & Quality Assurance

• Status: Used — Excellent Condition.

• Mechanical Integrity: The squeeze-action is fluid and responsive; the return spring is strong, and the internal punch mechanism shows no signs of misalignment or "sticking."

• Optical Inspection: The cutting edges have been inspected and are free of nicks, burrs, or dulling.

• Note to SPD: This is a delicate micro-instrument. It must be cleaned using ophthalmic-safe solutions (to prevent TASS) and should always be processed with a tip protector or in a dedicated ophthalmic tray to prevent damage to the 0.75 mm distal head.