US 12,303,628 B2
Measurement and automated peritoneal dialysis apparatus and method therefor
Pirgit Silvast-Äikäs, Helsinki (FI); and Markku Känsäkoski, Helsinki (FI)
Assigned to SMART PD SOLUTIONS OY, Helsinki (FI)
Appl. No. 17/920,584
Filed by SMART PD SOLUTIONS OY, Helsinki (FI)
PCT Filed Apr. 20, 2021, PCT No. PCT/EP2021/060145
§ 371(c)(1), (2) Date Oct. 21, 2022,
PCT Pub. No. WO2021/214006, PCT Pub. Date Oct. 28, 2021.
Claims priority of application No. 20205404 (FI), filed on Apr. 22, 2020.
Prior Publication US 2023/0173153 A1, Jun. 8, 2023
Int. Cl. A61M 1/28 (2006.01); A61M 1/16 (2006.01); B01D 61/24 (2006.01)
CPC A61M 1/28 (2013.01) [A61M 1/1605 (2014.02); A61M 1/1609 (2014.02); B01D 61/24 (2013.01); A61M 2205/3317 (2013.01); A61M 2205/3327 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/502 (2013.01); A61M 2205/702 (2013.01); A61M 2205/75 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A measurement apparatus for a peritoneal dialysis apparatus, wherein the measurement apparatus comprises
a connecting means, which is configured to be in contact with a drain line system of the peritoneal dialysis apparatus;
at least one electrochemical sensor means;
a clock providing a time signal;
data processing means;
a user interface means for the data presentation; and a flow meter, which is configured to feed data on the flow of the spent dialysate that is received by the measurement apparatus to the data processing means for detecting an order of different flows of dialysis cycles; and
the measurement apparatus is configured to receive a predetermined liquid for calibration during every dialysis cycle, which includes dwell-phase during which the predetermined liquid is fed to the drain line system, and spent dialysate through the drain line system of the peritoneal dialysis apparatus, the spent dialysate being received when the dialysis apparatus is connected with a patient;
the at least one electrochemical sensor means, which is configured to be in contact with the predetermined liquid for the calibration and the spent dialysate, is configured to continuously output at least one electric signal in response to contents of urea and glucose of the predetermined liquid for the calibration and the spent dialysate for data processing and/or data presentation of the at least one electric signal; and
the data processing means is configured to
receive data on the flow of the spent dialysate;
continuously process the at least one electric signal,
form a percentage of urea and a percentage of glucose of the spent dialysate based on the at least one electric signal,
time-stamp different flows of dialysis cycles on a basis of the time signal from the clock,
associate the percentage of urea and the percentage of glucose with the time-stamps; and
the user interface is configured to present the percentage of urea and the percentage of glucose associated with the time-stamps.