| 摘要 |
An intraurethral retainer and a keeper that cooperatively function to achieve retention within the confines of the fossa navicularis of the human penis for the secure and reliable fixation of various engaging devices to the penis and/or for occlusion of the urethra, or to alone without an engaging device accomplish fixation and/or occlusion of the penis, without distending or exerting uncomfortable pressure or friction on the constriction of the urethral orifice during their insertion or removal and without of their own accord, or by their mere presence, exerting uncomfortable pressure or friction on the urethral wall while in place, in the absence of any other force that may be exerted thereon.
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