Injection assembly with movable sleeve

An injection assembly comprising:

• a syringe barrel having a proximal end and a distal end, a needle hub at said distal end, said distal end of said needle hub forming a skin contact surface, and a needle extending from said distal end of said needle hub and syringe barrel;
• and
• a sleeve coupled to said syringe barrel for sliding movement relative to said syringe barrel between an extended position covering said needle, and a retracted position where said skin contact surface of said needle hub projects from said sleeve to contact a skin surface of a patient, and where said sleeve having a distal end with a slip resistant surface to inhibit lateral movement of said syringe assembly by an insertion force.

A method for introducing a needle into a patient, comprising providing an injection assembly having body with a proximal end and a distal end forming a skin contact surface, a needle coupled to said distal end;

• and a sleeve coupled to said body for sliding movement between an extended position where said needle is covered and a retracted position exposing said needle, said sleeve having a skin contact surface with a slip resistant surface;
• and
• orienting said body and needle at an incline against a skin surface of a patient and applying an insertion force where said sleeve contacts the surface of the skin before said needle contacts and penetrates the skin to inhibit lateral force of said needle relative to said skin surface.