The present invention provides fluid and material delivery methods and devices for practicing the methods. The invention provides a method of delivering cellular material comprising injecting the cellular material into a subject such that the injected cells retain their inherent morphologic characteristics upon injection. The method comprises the steps of aspirating the cellular material into a fluid delivery device which incorporates a syringe arrangement. The cellular material is aspirated into the main body of the syringe until the desired amount of a material has filled the syringe body. The needle of the fluid delivery device is then inserted into the skin of a subject at an angle about parallel to the skin until a desired depth has been reached. The cellular material is then injected in the subject until the desired volume of material has been injected. The needle of the device is then rotated approximately 45 to 90 degrees and the needle is removed from the injection site.本發明提供流體及物質輸送方法及實施該等方法之設備。本發明提供一種輸送細胞物質之方法,其包含將該細胞物質注入一對象中以使得所注射細胞在注射後保持其固有形態特徵。該方法包含將該細胞物質吸入一包含注射器配置之流體輸送設備中的步驟。將該細胞物質吸入該注射器之主體中直至該注射器本體中填充有所要量的物質。接著將該流體輸送設備之針以大約與皮膚平行之角度插入一對象之皮膚中直到達到一所要深度。接著將細胞物質注入該對象中直至已注射所要體積的該物質。接著使該設備之針旋轉大約45度至90度且自注射部位移除該針。204...流動輸送設備208...殼體214...觸發器部分252...頭部260...殼體前端部分262...殼體前端部分400...環形頭部412...觸發器部分孔隙