| abstract |
PROBLEM TO BE SOLVED: To provide a needleless subcutaneous administration method of a protein, which can advantageously optimize the pharmacokinetics of dose or administration (for example, in reproducibility and efficacy). A protein delivery device for use in needle-free subcutaneous administration of a protein to a human or an animal, comprising a nozzle (1), a chamber (2), a piston (3), an actuator (4), and a drive device (5). ) Comprises a unit. The drive (5) can be spring driven, gas driven or explosive driven. [Selection diagram] Figure 1 |