Abstract: An atraumatic insertion device for the subcutaneous delivery of pellet-shaped medicaments and/or implantable devices is described. The device includes a cannula with a distal tip that opens when the pellet-shaped medicaments and/or implantable devices are pushed through using an obturator. The cannula distal tip has at least three cuts, creating sectional leaves that open when pressure is applied distally from within the hollow cannula body. The distal tip of the obturator has complementary grooves to the sectional leaves of the cannula distal tip and will force everything out of the cannula and anything that might be caught on the sectional leaves. A blister packaging strip for storing and dispensing pellet-shaped medicaments and/or implantable devices is used to load the insertion device. The blister packaging strip has features to align the blister cavity directly above the loading well of the device and safely transfer the pellet-shaped medicaments and/or implantable devices into the cannula.