Patent ID: 6086559
Filing Date: 2000-07-11
Classification: A61M

Abstract:
A method for pressure-controllable handling of a fluid comprising the steps of:forcing the fluid located in a container of a variable volume through an outlet by applying pressure with a plunger upon the fluid whereinthe container is connected to a measuring channel with a pre-determined cross-section,the measuring channel communicates with a buffer with a pre-determined constant volume,the measuring channel and the buffer are filled with a compressible medium, such that there is at least partial ingress of the fluid into the measuring channel, dependent upon the influence of pressure, the cross-section of the measuring channel and the size of the buffer volume,the measuring channel is provided with a measuring means for observing the pressure of the fluid,the buffer is in the plunger, andthe measuring channel is in the buffer or the plunger.