Embodiments include particle delivery devices and systems and methods of delivering particles to a site. The device and system embodiments include a suspension reservoir which might be a syringe for temporarily storing and delivering a particle suspension. The particle delivery device also includes a mechanical linkage or other structure which allows the suspension reservoir to rotate or otherwise be moved with respect to, or about, a reservoir axis. Rotation or other movement of the suspension reservoir provides a means for maintaining the particles in suspension during particle storage, loading and delivery processes.
