Syringes for medical purposes and for injections; medical syringes featuring retractable needles; medical instruments and apparatus, namely, syringes, injection devices for pharmaceuticals and other infusion therapies, injection instruments with needles, injection needles, catheters, dental syringes, infusion sets, blood tubing sets for medical purposes, blood drawing apparatus, devices for blood collection, namely, blood collection tube holders; medical instruments and apparatus, namely, IV catheter introducers and hubs, blood collection tube holders, bodily fluid collection and sampling devices for medical diagnostic uses, needle retraction apparatus, namely, retractable needles attachable to medical syringes, retractable needles for blood gas sampling; medical products, namely, vaccination needles and syringe exchange devices, and needle safety apparatus in the nature of needle covers, needle guards and sliding protective shields; medical products, namely, bodily fluid collection sets consisting primarily of venipuncture needles, needle retraction triggers, trigger indicators, tubing, fluid collection tubes and bags, and holders for fluid collection tubes.