| 摘要 |
An improved female urinary appliance includes a mouth surrounding a urine-receiving cavity, and a drainage channel integral with the backside of the device and communicates with a bore opening from said cavity. The device includes means for preventing the drainage channel from kinking. The mouth is adapted to be positioned within the labia folds of the user, in contact with the vestibular tissue around the meatus and held in place by gentle vacuum. A valve is preferably used in combination with the appliance, and includes an inlet and an outlet, for maintaining a preselected vacuum condition at the valve inlet and a predetermined pressure condition at the valve outlet is disclosed. In preferred use, the drainage channel is suitably connected in spaced relation to the valve inlet. The valve contains a flow control element adapted to control flow of urine from the cavity. While the mouth is held against the vestibular tissue by gentle vacuum, urine flowing through the appliance and valve entrains gas present in the cavity. In the cavity, a desired vacuum condition is maintained, over time, because the valve includes a semi- permeable membrane adapted to permit air and other gas to diffuse through a portion of the valve and thereby to counteract the effects of entrainment and relieve or maintain the vacuum condition at a predetermined level. <IMAGE> |
