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cervical cap
The cervical cap is a form of barrier contraception. A cervical cap fits over the cervix and blocks sperm from entering the uterus through the external orifice of the uterus, called the ''os''.
==Terminology==
The term ''cervical cap'' has been used to refer to a number of barrier contraceptives, including the Prentif, Dumas, Vimule, and Oves devices. In the United States, Prentif was the only brand available for several decades (Prentif was withdrawn from the U.S. market in 2005).〔 During this time, it was common to use the term ''cervical cap'' to refer exclusively to the Prentif brand.
The Lea's Shield was a cervical barrier device which was discontinued as of 2008. Some sources use ''cervical cap'' to refer to the FemCap and Lea's Shield.〔 〕 Other sources include FemCap in the term ''cervical cap'', but classified the Lea's Shield as a distinct device.〔
Cervical caps or conception caps have also been designed as a form of assisted reproductive technology, used to help people experiencing infertility.〔http://www.fda.gov/cdrh/pdf6/K063227.pdf〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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