Mathieu Rectal Speculum

Function: It is used for rectal examinations and surgeries on the rectum and anus, such as repairing anal tears or treating hemorrhoids.
Design: The device features three prongs or blades that are inserted into the rectum and dilated to provide visibility.
Mechanism: It operates using a spring handle and includes a screw mechanism to lock the prongs at a specific diameter, typically up to 2 inches.
Material: These instruments are typically made of stainless steel or chrome-plated metal.