Patent ID: 11957822
Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
Field: Chemical engineering (Chemistry)
Classification: CPC A  B | IPC A  B

Claim 0:
1. An apparatus for performing peritoneal dialysis, comprising means for delivering dialysis fluid to the peritoneal cavity of a patient and draining dialysis fluid from the peritoneal cavity, a measurement device means for continuously or discontinuously measuring the fluid pressure of the delivered fluid and for measuring an intraperitoneal pressure of the patient, and a control unit operably connected to said means and the measurement device means, characterized in that
the control unit is configured to establish a relationship of the measured intraperitoneal pressure to intraperitoneal volume and to analyse this relationship to obtain an average hydraulic conductance (LpS) of a peritoneal membrane of the patient by the steps of
determining a first rate of change of intraperitoneal volume (Jv_net(t1)) at a first point in time and a second rate of change of intraperitoneal volume (Jv_net(t2)) at a second point in time,
determining a first average of the measured intraperitoneal pressure (Pip(t1)) in the peritoneal cavity at the first point in time and a second average of the measured intraperitoneal pressure (Pip(t2)) in the peritoneal cavity at the second point in time,
determining a first glucose concentration (Cg(t1)) of the dialysis fluid in the peritoneal cavity at the first point in time and a second glucose concentration (Cg(t2)) of the dialysis fluid in the peritoneal cavity at the second point in time, and
determining the average hydraulic conductance (Lp), and

the control unit is further configured to (i) adapt at least one treatment parameter in a peritoneal dialysis treatment based on the determining steps, wherein the at least one treatment parameter comprises at least one of a filling volume for dialysis fluid in the peritoneal cavity, a dwell time, or an optimum number of inflow-outflow cycles, and
(ii) perform the peritoneal dialysis treatment with the apparatus, adapting the at least one treatment parameter, comprising controlling the means for delivering and draining.