초록 ▼

A drug delivery device including a needle assembly facilitates making intradermal injections using a variety of drug container types such as a syringe. A hub supports the needle while a limiter surrounds the needle. The limiter includes a skin engaging surface that is adapted to be received against

A drug delivery device including a needle assembly facilitates making intradermal injections using a variety of drug container types such as a syringe. A hub supports the needle while a limiter surrounds the needle. The limiter includes a skin engaging surface that is adapted to be received against the skin of an animal to be intradermally injected. A forward end of the needle extends beyond the skin engaging surface a selected distance to limit a depth that the needle penetrates into the animal's skin.

대표청구항 ▼

1. A hypodermic needle assembly for use in intradermally injecting vaccines into the skin of an animal, comprising:a hub portion that is able to be attached to a prefillable container for storing a vaccine; a needle supported by the hub portion, the needle having a hollow body with a forward end ext

1. A hypodermic needle assembly for use in intradermally injecting vaccines into the skin of an animal, comprising:a hub portion that is able to be attached to a prefillable container for storing a vaccine; a needle supported by the hub portion, the needle having a hollow body with a forward end extending away from the hub portion; and a limiter portion that surrounds the needle and extends away from the hub portion toward the forward end of the needle, the limiter portion includes a generally flat skin engaging surface extending through a plane that is generally perpendicular to an axis of the needle and is adapted to be received against the skin of an animal to receive an intradermal injection of a vaccine, the needle forward end extending beyond the skin engaging surface from approximately 0.5 mm to approximately 3 mm such that the limiter portion limits penetration of the needle to the dermis layer of the skin of an animal so that the vaccine is injected into the dermis layer of the animal.