Katena Kelly Descemet’s Punch | 1.0mm Head | 0.75mm Bite | K2-9510

The Katena K2-9510 is a premier micro-surgical instrument engineered for the exacting requirements of glaucoma filtration surgery. Specifically designed for performing a precise peripheral iridectomy or sclerostomy, the Kelly Descemet’s Punch allows the surgeon to create a clean, uniform 1.0 mm opening in the corneoscleral tissue.

Following the classic Kelly pattern, this instrument features a squeeze-action handle that provides superior tactile feedback. The ultra-sharp cutting edges are calibrated to produce a burr-free, 0.75 mm deep bite, which is essential for maintaining the patency of the fluid drainage pathway while minimizing trauma to the surrounding ocular structures.

Key Specifications

• Manufacturer: Katena

• Series / Pattern: Kelly

• Model / REF: K2-9510

• Instrument Type: Corneoscleral / Descemet’s Punch

• Mechanism: Squeeze-Action (Spring-Loaded)

• Head Diameter: 1.0 mm

• Bite Depth: 0.75 mm

• Overall Length: 5 inches (approx. 127 mm)

• Material: High-Grade Surgical Stainless Steel

Technical & Clinical Advantages

• Clean-Cut Precision: The punch geometry is engineered to "shear" rather than "crush" tissue. This results in a precise circular ostomy with crisp margins, reducing the likelihood of post-operative scarring or closure of the filtration site.

• Ergonomic Squeeze-Action: The serrated handle provides a non-slip grip, allowing the surgeon to apply controlled, incremental pressure. The spring-return mechanism is finely tuned to prevent hand fatigue during delicate maneuvers under the operating microscope.

• 1.0mm Ultra-Low Profile: The miniature head size allows for easy insertion through a small limbal incision, providing the surgeon with maximum visibility of the anterior chamber angle.

• Non-Reflective Satin Finish: The stainless steel is treated with a specialized satin finish to eliminate glare from the coaxial light of the microscope, preserving the surgeon’s depth perception during the "punch" phase.

• Surgical-Grade Durability: Forged to Katena’s industry-leading standards, the K2-9510 is designed to maintain the sharpness of its cutting blade through repeated high-temperature sterilization cycles.

Applications

• Glaucoma Surgery: Creating a precise sclerostomy for trabeculectomy procedures.

• Corneal Surgery: Specialized tissue harvesting or trephination adjustments.

• Descemet’s Membrane Procedures: Controlled punching of the Descemet’s membrane in advanced keratoplasty techniques.

Condition & Quality Assurance

• Status: Used — In Excellent Condition. * Integrity: The squeeze mechanism is fluid and responsive with no "catching" or resistance. The 1.0 mm punch head is free of nicks, and the cutting edge is factory-sharp. The serrated handles show no signs of pitting or oxidation.

• Maintenance Requirement: As a reusable micro-ophthalmic instrument, this punch must undergo a validated decontamination and sterilization cycle (standard steam autoclave) in accordance with hospital protocols and Katena’s Instructions for Use (IFU) prior to clinical use in 2026.

• Professional Standards: With over 25 years of experience in specialized optics and surgical hardware, Primis Medical ensures all ophthalmic micro-instruments are inspected for mechanical alignment and cutting edge integrity.

Shipping & Handling

• Secure Logistics: Shipped in specialized, tip-protected packaging to ensure the 1.0 mm cutting head and fine spring mechanism remain pristine during transit.

• Fast Dispatch: Ships within 1 business day.