Ideal Instruments Udder Infusion Cannulas are veterinary tools used for infusing medication or solutions into the teats of dairy animals like cows, goats, or sheep. They are also used for draining milk from the udder. The cannulas are made of materials like stainless steel or nickel-finished brass and are designed to attach to a syringe for easy application. The tip of the cannula is often tapered or rounded to allow for gentle insertion and to minimize damage to the teat.