An injection device suitable for use with infants is disclosed. The injection device is formed from a body shield member and a cylindrical handle. The body shield member includes a concave flange at the base, which is pressed against the patient's limb and reduces local compression at the needle insertion site. The injection device also has a softer form and operates through a pressing motion. A catch member is located in the cylindrical handle, and is deployed upon fully depressing the handle. Once the handle returns to its starting position, the catch member prevents the handle from being depressed a second time and permitting the used needle to be exposed.
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