A method and instrument for placing an implant in the teat duct and udder of an animal, as a milk cow. The instrument has an elongated tubular member having a passage accommodating the implant. The tubular member is adapted to be inserted into the milk duct through the discharge end thereof. A head having...http://www.google.es/patents/US4359044?utm_source=gb-gplus-sharePatente US4359044 - Method for placing implant in udder
