Patent ID: 8394070

Claim:
A device for transferring a volume of a pharmaceutical suspension, said device comprising: a) an external cylinder, comprising: i) an inner and an outer longitudinal surface, said inner surface comprising guiding means; and ii) a proximal end and a distal end; b) a core cylinder, comprising: i) a respective inner and outer longitudinal surface; ii) a proximal end and a distal end, said proximal and distal ends comprising respective passages, said passages being in fluid communication with corresponding connecting means adapted to connect the device with respective means for injection: iii) a conduit, arranged between and in fluid communication with respective passages at the proximal and distal ends of the core cylinder; and iv) a cylindrical reservoir, in fluid communication with said passage at the proximal end of the core cylinder and cooperating with a respective plunger, said plunger being adapted to operatively engage with the guiding means; said plunger and said guiding means being operatively engaged such that a relative rotation of the external cylinder with respect to the core cylinder results in a corresponding longitudinal movement of the plunger along the reservoir.