Hegar Uterine Dilators S/E 21.0mm

Clinical Application

Hegar uterine dilators are manual dilators used to achieve controlled, gradual cervical dilation prior to intrauterine procedures. The 21.0 mm size is a large-diameter instrument intended for cases that require substantial dilation such as operative dilation and curettage, hysteroscopic access in select patients, management of retained products, or other gynecologic procedures performed under appropriate anesthesia. These dilators are used sequentially with smaller sizes to minimize tissue trauma and to verify cervical patency.

Design & Configuration

The Hegar design features a smooth, tapered cylindrical shaft that provides predictable radial expansion as the instrument is advanced through the cervical canal. A rounded/blunt tip reduces focal tissue pressure during insertion and withdrawal. The single-ended configuration simplifies handling when a specific size is required without exchanging double-ended instruments. Straight geometry allows direct alignment with the cervical canal for tactile feedback and controlled dilation.

Instrument Specifications

• Instrument type: Uterine dilator (Hegar pattern)
• Configuration: Single-ended, straight, tapered shaft
• Size: 21.0 mm diameter
• Tip: Rounded / blunt tip to minimize tissue trauma
• Typical use: Cervical dilation for diagnostic and operative gynecologic procedures
• Reusable: Yes

Material & Construction

Constructed from surgical-grade stainless steel for durability and corrosion resistance. The smooth, polished surface facilitates atraumatic passage and is compatible with standard cleaning and sterilization processes for reusable instruments.

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