| 摘要 |
The invention relates to a frame of an intrauterine system consisting of an elongate member having at its first end a transverse member comprising a first wing and a second wing, first ends of said wings being attached to said elongate member. According to the invention, said first and second wings are symmetrically bent towards a second end of said elongate member so that an angle .alpha. formed between said elongate member and said first or second wing is 10°-60° and in that the second ends of the wings are symmetrically bent towards the elongate member by an angle .beta. that is 40°-140°.
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