Design and Features:

• The speculum has a jaw that opens up like a duck bill.
• It comes in three models: side screw, center screw, and a special narrow virgin size.
• The instrument is usually 80 millimeters (3.1 inches) long and 22 millimeters (0.87 inches) broad, but smaller and larger sizes are available.
• It features a spring handle to open the blades and a screw mechanism to keep the blades open in the vaginal canal.

Uses:

• Diagnostic Examinations: Cusco’s speculum is used for introducing an intrauterine contraceptive device, taking a Pap smear, and performing colposcopic examinations.
• Cryosurgery: It is preferred in cryosurgery because it protects the anterior and posterior vaginal wall.
• Cauterization: The speculum can be used for cauterization of vaginal erosion.
• Self-Retaining: One advantage is that it is self-retaining, eliminating the need for an assistant to hold it in place during procedures.
• Vaginal Wall Retraction: It also acts as a vaginal wall retractor.

Considerations:

• While it provides excellent visibility, it reduces the space in the vaginal cavity, making it less suitable for extensive vaginal surgery.
• Small lesions on the vaginal wall may be masked by the blades due to its coverage.