| 摘要 |
<p>PURPOSE:To assist the erection time of a penis so as to assure contraception. CONSTITUTION:This condome is designed by constituting a ball edge-shaped bag edge 2 in the bag mouth of an extremely thin blind cylindrical bag body 1 molded of natural rubber or synthetic rubber and insert molding an annular shape memory narrow diameter ring 4 thermally energized to be the diameter slightly smaller than the annular diameter at the time of use subjected to shape memory from the initial annular diameter in a preset temp. atmosphere.</p> |
