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Abstract

A dilator for a test of a female mammal operates to facilitate the flow of fluids from the teat. The dilator has a body having a passage adapted to be positioned in communication with a duct of the teat. Elongated finger structure extends from the body into the duct. In one form of the dilator, the finger structure has a pair of angle shaped flexible fingers secured at one end to the body and at the opposite end to a sleeve. In another form, the finger structure is an elongated tubular member having a passage allowing the flow of fluid through the dilator. A one-way valve mounted on the body allows the flow of fluid out of the dilator and restricts the entrance of external foreign substances back into the passage and duct of the teat. The valve has flexible side walls terminating in normally closed lips. A slit mouth is located between the lips. The slit mouth can be opened to facilitate the dispensing of medicinal compounds into the teat and udder of the mammal.

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First Claim