Cooley Mitral Valve Dilator 6-20mm

Clinical Application

This dilator is designed for use during open mitral valve procedures to perform controlled dilation of stenotic mitral orifices and to assess valve competency after commissurotomy or leaflet repair. It is intended for intraoperative use by cardiac surgeons to incrementally enlarge the valve orifice, facilitate leaflet separation, and help determine sizing and functional adequacy prior to valve replacement or definitive repair.

Design & Configuration

The instrument features a graduated, tapered profile spanning 6–20 mm diameters to allow stepwise, controlled dilation without changing instruments. The tapered geometry enables a gradual increase in radial dimension so the surgeon can apply incremental force and assess tissue response and valve coaptation at each diameter. A slim shaft and smoothly contoured distal tip provide access through the left atrium and across the valve orifice while minimizing snagging on leaflet tissue during manipulation.

Instrument Specifications

• Pattern: Cooley mitral valve dilator
• Size range: 6–20 mm diameters (graduated)
• Intended use: Intraoperative dilation and commissurotomy of the mitral valve
• Tip: Tapered dilating profile for incremental sizing
• Reusable: Yes
• Material: Surgical-grade stainless steel

Material & Construction

Manufactured from surgical-grade stainless steel with precision-ground surfaces for smooth insertion and reliable performance. The construction supports repeated sterilization and reuse in high-acuity cardiac operating environments. Surface finish and tolerances facilitate atraumatic handling of valve leaflets while providing durable, long-term service.

Quality & Compliance

Manufactured by FDA-registered OEM facilities and produced under strict quality control standards.

Brand Comparison

Comparable in form and function to equivalent instruments offered by major US medical suppliers.

Availability & Returns

• In-stock lead time: ships within ~1 week
• Out-of-stock lead time: 2–4 weeks
• Returns: 30-day return policy