Diaphragm pessary

A diaphragm pessary is a flexible, circular barrier device made of soft rubber or plastic that is inserted into the vagina before sexual intercourse to prevent pregnancy. It works by covering the cervix to block sperm from entering the uterus, and is often used with a spermicidal gel or cream applied inside the dome to increase effectiveness.

This category includes reusable devices that must be inspected, cleaned, and properly stored after each use to maintain safety and function. Regulatory oversight focuses on the materials, design, and performance of the device as a mechanical barrier, with requirements varying by jurisdiction based on risk classification for vaginal contraceptive devices.