Tecpharma Licensing Ag

Swedish Orphan Biovitrum Ab

Birger Hjertman

Jonas Fransson

Frank Schiffmann

A device for the serial ejection of at least two fluid components comprises a spacer () providing at least two states, i) a first state allowing a front piston () to be displaced forwards by action on a rear piston () while a fluid volume is retained in a rear chamber () and ii) a second state allowing the rear chamber to volumetrically shrink while fluid is transferred past (or through) the front piston thereby enabling the use of a liquid, initially provided in only the rear chamber, for the dual purposes of mixing and rinsing.

Method and device for the serial ejection of two fluids comprising a spacer

The invention relates to a device for injecting a fluid including a pressure chamber for accommodating the fluid, a piston for expelling the fluid from the pressure chamber, a pressure mechanism for generating an expelling impulse or force, and a transfer body coupled to the pressure mechanism, wherein, in an initial position the transfer body is arranged at a distance away from a contact point for transferring a force or impulse onto the piston. The invention encompasses a method for injecting a fluid wherein a transfer body is freely accelerated for a distance and strikes a contact point thus generating an initial impulse or pressure to expel the fluid.

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Hässelby, Sweden

Birger Hjertman