Graefenberg ring

Grae·fen·berg ring

(grā'fĕn-bĕrg),
obsolete term for a silver ring designed for insertion into the uterine cavity as a means of contraception.

Graefenberg,

(Gräfenberg), Ernst, German gynecologist in U.S., 1881-1957.
Graefenberg ring - obsolete term for a silver or silkworm gut ring designed for insertion into the uterine cavity as a means of contraception.
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