Diaphragm (contraceptive)

Diaphragm (contraceptive)

The diaphragm is a cervical barrier type of birth control. It is a soft latex or silicone dome with a spring molded into the rim. The spring creates a seal against the walls of the vagina.

Read more about Diaphragm (contraceptive):  Use, Fitting, Mechanism of Contraception, Effectiveness, Types, Advantages, Risks, History

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Diaphragm (contraceptive) - History
... However, the diaphragm€”which stays in place because of the spring in its rim, rather than hooking over the cervix or being sticky—is of much more recent origin ... An important precursor to the invention of the diaphragmwas the rubber vulcanization process, patented by Charles Goodyear in 1844 ... the first description of a rubber contraceptivedevice with a spring molded into the rim ...