| 摘要 |
<p>PURPOSE:To achieve smooth insertion of a penis into a condom regardless of the size thereof by a method wherein a circularly bulging part is formed roughly at the center of a leakage/infiltration preventing body and circular stoppers free to cut off are provided in such manner as to reduce in diameter gradually towards the tip side from the bulging part. CONSTITUTION:This leakage and infiltration preventer has a thin leakage/ infiltration preventing body 2 made of a silicone resin and has a circularly bulging part 3 roughly at the center thereof while housing a water absorbing adsorbent 1 inside free to expand diametrically. A plurality of circular stoppers 4 are formed both on right and left sides of the building part 3 while a frame part 5 is formed on an open rim part 6 on the inserting side and a clamp intensifying part 8 on the open rim part 7 on the opposite side. Among the circular stoppers 4, those 4 between the bulging part 3 and the open rim part 7 are so formed to reduce in diameter toward the open rim part 7. When a penis is large. the stopper 4 is cut off at a proper point thereby making the insertion thereof into skin smooth.</p> |
