The syringe systems disclosed herein provide in part devices for allowing patients with compromised joint strength to more easily administer medicine. Certain exemplary syringe embodiments include a handle forming a handgrip, a syringe barrel that magnifies the dosage marks located on an inner barrel, and a tip cap slidably engageable with the syringe barrel for shielding a needle.本文所揭示之注射器系統提供部分用於使關節強度受損之患者更容易施予藥物的裝置。某些例示性注射具體實例包括一形成把手之手柄、一放大位於內筒上之劑量標記的注射器筒及一用於罩住針頭之可與該注射器筒滑動卡合的尖蓋。