| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To eliminate a distress caused by bleeding, pain or the like of woman at the first sexual intercourse. <P>SOLUTION: Based on a principle that a perforation (a hole) in a hymen stretches and never go back to its original state by being dilated for a long time, inflating a balloon 1 inserted into a vagina can gradually dilate the hole in the hymen with its air pressure and resilience. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
