| 摘要 |
A penile prosthesis with a two piece inflatable cylinder that provides significant lengthwise expansion of a male penis. The cylinder has an inflatable bellows attached to an inflatable member and a sheath that extends from a base member. The bellows is attached to the base member and the sheath is connected to the inflatable member, such that the sheath will stretch when t he bellows is inflated. The sheath surrounds the bellows. The sheath is constructed from an elastic material that can expand up to 100% of its original length. The inflatable member and bellows are connected to a pump which transfers fluid between a reservoir and the cylinder. When fluid is pumped into the cylinder, the bellows and inflatable member are inflated and the sheath is expanded, allowing the inflatable member to move into an elongated position. When the cylinder is inflated the sheath is in tension, wherein the sheath will pull the inflatable member back into a compact position when the bellows is deflated.
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