Intermittent Intravesical Therapeutic Administration System

Abstract

An intravesical intermittent instillation catheter includes a tube containing a urinary lumen and an instillation lumen. The proximal end has a set of drainage eyelets, formed in a wall of the tube, that are in communication with the urinary lumen as well as a set of instillation eyelets, formed at a tip of the proximal end, in communication with the instillation lumen. A sheath is slidably mounted to surround the tube and having first and second axial positions wherein, in the first position, the drainage eyelets are exposed and, in the second position, the drainage eyelets are covered by the proximal end of the sheath. In operation of the catheter, when the sheath is in the first position, drainage of urine can proceed through a path including the drainage eyelets, the urinary lumen, a drainage connector, and a urinary collection bag and, when the sheath is in the second position, instillation of the medicament can thereafter proceed from a syringe, through an instillation connector, the instillation lumen, and the instillation eyelets and into the bladder.

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