| 摘要 |
A dilator for a teat of a dairy cow operates to facilitate the flow of fluid from the teat. The dilator has a body having a passage adapted to be positioned in communication with a duct of the teat. An elongated tubular member extends from the body into the duct. The tubular member has 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. An inserter having a rod extended through the one-way valve and tubular member is used to place the dilator in the teat duct and duct outlet, with the one-way valve located at the terminal end of the teat.
|
