Method of intradermally injecting substances

A method of making an intradermal injection with a drug delivery device having a limiter with a skin engaging surface limiting the depth a needle cannula can be inserted into the skin of an animal comprising the steps of:

• exposing a forward tip of said needle cannula extending from a limiter beyond a skin engaging surface a distance equal to approximately 0.5 mm to approximately 3.0 mm and said needle cannula having a fixed angle of orientation relative to the skin engaging surface of the limiter;
• inserting said forward tip of the needle cannula into the skin of the animal at until said skin engaging surface contacts the skin of the animal;
• and
• expelling a substance from said device into the dermis layer of the skin of the animal.

A method of making an intradermal injection into the skin of an animal comprising the steps of:

• providing a drug delivery device with a prefillable container including a needle cannula having a forward needle tip and said needle cannula being in fluid communication with a substance contained in said prefillable container and including a limiter portion surrounding said needle cannula and said limiter portion including a skin engaging surface, with said needle tip of said needle cannula extending from said limiter portion beyond said skin engaging surface and said needle cannula having a fixed angle of orientation relative to a plane of the skin engaging surface of the limiter portion;
• inserting said needle tip into the skin of an animal and engaging the surface of the skin with said skin engaging surface of said limiter portion such that the skin engaging surface of the limiter portion limits penetration of the needle tip into the dermis layer of the skin of the animal;
• and
• expelling the substance from said drug delivery device through the needle tip into the skin of the animal.

A method of intradermally injecting an influenza vaccine into the skin of an animal comprising the steps of:

• providing a drug delivery device including a needle cannula having a forward needle tip and said needle cannula being in fluid communication with an influenza vaccine contained in said drug delivery device and including a limiter portion surrounding said needle cannula and said limiter portion including a skin engaging surface, with said needle tip of said needle cannula extending from said limiter portion beyond said skin engaging surface a distance equal to approximately 0.5 mm to approximately 3.0 mm and said needle cannula having a fixed angle of orientation relative to a plane of the skin engaging surface of the limiter portion;
• inserting said needle tip into the skin of an animal and engaging the surface of the skin with said skin engaging surface of said limiter portion such that the skin engaging surface of the limiter portion limits penetration of the needle tip into the dermis layer of the skin of the animal;
• and
• expelling the influenza vaccine from said drug delivery device through the needle tip into the skin of the animal.