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1. (WO2019067222) SYSTEM AND METHOD FOR DIALYZER EVALUATION
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Pub. No.: WO/2019/067222 International Application No.: PCT/US2018/050797
Publication Date: 04.04.2019 International Filing Date: 13.09.2018
IPC:
A61B 5/145 (2006.01) ,A61M 1/34 (2006.01) ,G01N 21/85 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
5
Measuring for diagnostic purposes; Identification of persons
145
Measuring characteristics of blood in vivo, e.g. gas concentration, pH-value
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
M
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
1
Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
34
Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration, diafiltration
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
84
Systems specially adapted for particular applications
85
Investigating moving fluids or granular solids
Applicants:
FRESENIUS MEDICAL CARE HOLDINGS, INC. [US/US]; 920 Winter Street Waltham, Massachusetts 02451, US
Inventors:
BARRETT, Louis LeeGrande; US
HO, Chih-Hu; US
STROUP, Eric; US
Agent:
EBONG, Idongesit E.; US
Priority Data:
15/720,64229.09.2017US
Title (EN) SYSTEM AND METHOD FOR DIALYZER EVALUATION
(FR) SYSTÈME ET PROCÉDÉ POUR L'ÉVALUATION D'UN DIALYSEUR
Abstract:
(EN) Embodiments of the disclosure provide a method for evaluating dialyzers used in different medical applications (e.g., hemodialysis). Red blood cell volume lost in a dialyzer is monitored by obtaining blood flowrate measurements and hematocrit measurements at input ports and output ports of the dialyzer. The flowrate and hematocrit measurements are used to determine an accumulation of red cell blood volume in the dialyzer. The measurements may be obtained in a lab environment with an in-vitro blood source or may be obtained in a clinical setting with an in-vivo blood source from a patient.
(FR) Des modes de réalisation de l'invention concernent un procédé pour l'évaluation de dialyseurs utilisés dans différentes applications médicales (par exemple, l'hémodialyse). Le volume de globules rouges perdus dans un dialyseur est surveillé par l'obtention de mesures de débit sanguin et de mesures d'hématocrite au niveau des orifices d'entrée et des orifices de sortie du dialyseur. Les mesures de débit et d'hématocrite sont utilisées pour déterminer un volume d'accumulation de globules rouges dans le dialyseur. Les mesures peuvent être obtenues dans un environnement de laboratoire avec une source de sang in vitro ou peuvent être obtenues dans un milieu clinique avec une source de sang in vivo provenant d'un patient.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)