Medication Delivery Device

Abstract

An ear medication delivery device for delivering a treatment liquid and retaining the treatment liquid within an ear canal of a patient including a unitary, one piece earplug formed of a soft resilient material including an ear canal engaging portion and an external portion and defining a single internal passage therethrough. The external portion includes a major disk and an annular medication applicator receiving portion in fluid communication with the internal passage. The ear canal engaging portion includes at least two minor disks of progressively different size extending outwardly in a generally radial direction. The ear canal engaging portion defines a molded resilient valve unitary with the earplug that is shiftable from a closed position to an open position in either direction under a preselected fluid pressure and that resiliently returns to the closed position below the preselected fluid pressure.

What is claimed is: 
     
         1 . An ear medication delivery device for delivering a treatment liquid and retaining the treatment liquid within an ear canal of a patient, comprising:
 a unitary, one piece earplug formed of a soft resilient material including an ear canal engaging portion and an external portion and defining a single internal passage extending from a first end of the earplug to a second end of the earplug therethrough;   the external portion including a major disk and an annular medication applicator receiving portion in fluid communication with the internal passage;   the ear canal engaging portion including at least two minor disks of progressively different size extending outwardly therefrom in a generally radial direction;   the ear canal engaging portion defining a molded resilient valve unitary with the earplug that is shiftable from a closed position to an open position in either direction under a preselected fluid pressure and that resiliently returns to the closed position below the preselected fluid pressure.