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1. (WO2015124235) APPARATUS AND METHOD FOR DETERMINING THE LIQUID LEVEL OF SALVAGED BLOOD IN A BLOOD COLLECTION RESERVOIR OF AN AUTOLOGOUS BLOOD TRANSFUSION SYSTEM
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Pub. No.:
WO/2015/124235
International Application No.:
PCT/EP2014/078124
Publication Date:
27.08.2015
International Filing Date:
17.12.2014
IPC:
G01F 23/292
(2006.01),
A61M 1/36
(2006.01)
G
PHYSICS
01
MEASURING; TESTING
F
MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
23
Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
22
by measurement of physical variables, other than linear dimensions, pressure, or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
28
by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
284
Electromagnetic waves
292
Light
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
36
Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation
Applicants:
FRESENIUS KABI DEUTSCHLAND GMBH
[DE/DE]; Else-Kröner-Straße 1 61352 Bad Homburg (DE)
Inventors:
MEISBERGER, Artur
; (DE).
FAHRENDORFF, Melanie
; (DE).
EIRICH, Manfred
; (DE)
Agent:
FRESENIUS KABI DEUTSCHLAND GMBH
; Else-Kröner-Straße 1 61352 Bad Homburg (DE)
Priority Data:
14156384.1
24.02.2014
EP
Title
(EN)
APPARATUS AND METHOD FOR DETERMINING THE LIQUID LEVEL OF SALVAGED BLOOD IN A BLOOD COLLECTION RESERVOIR OF AN AUTOLOGOUS BLOOD TRANSFUSION SYSTEM
(FR)
APPAREIL ET PROCÉDÉ DE DÉTERMINATION DE NIVEAU DE LIQUIDE DE SANG RÉCUPÉRÉ DANS UN RÉSERVOIR DE COLLECTE DE SANG D'UN SYSTÈME DE TRANSFUSION DE SANG AUTOLOGUE
Abstract:
(EN)
Disclosed is an apparatus and method for determining the liquid level of salvaged blood in a blood collection reservoir (11) of an autologous blood transfusion system (20), comprising sensing means (10, 12) for periodically sensing the liquid level of the salvaged blood in said blood collection reservoir (11) and outputting corresponding signals, and determining means (2) for determining the liquid level of the salvaged blood in said blood collection reservoir (11) based on said output signal of said sensing means. The sensing means comprises a plurality of light emitters (12) disposed on a first side of said blood collection reservoir (11) at different height levels (L1-L9) for emitting light and a plurality of light receivers (10) disposed at said different height levels (L1-L9) on a second side of said blood collection reservoir (11) opposite to said first side for sensing light emitted by said light emitters (12) and transmitted through said blood collection reservoir (11). Parameters of the optical set-up used for detection and signal analysis may be adjusted individually and dynamically so that disturbing effects caused e.g. by absorptive films on the inner surface of the blood collection reservoir (11) may be identified and prevented to thereby enhance the reliability of signal detection and analysis.
(FR)
L'invention concerne un appareil et un procédé pour déterminer le niveau de liquide de sang récupéré dans un réservoir de collecte de sang (11) d'un système de transfusion de sang autologue (20), comprenant un moyen de détection (10, 12) pour détecter périodiquement le niveau de liquide du sang récupéré dans ledit réservoir de collecte de sang (11) et délivrer des signaux correspondants, et un moyen de détermination (2) pour déterminer le niveau de liquide du sang récupéré dans ledit réservoir de collecte de sang (11) sur la base dudit signal de sortie dudit moyen de détection. Le moyen de détection comprend une pluralité d'émetteurs de lumière (12) disposés sur un premier côté dudit réservoir de collecte de sang (11) à différents niveaux de hauteur (L1-L9) pour émettre une lumière, et une pluralité de récepteurs de lumière (10) disposés auxdits différents niveaux de hauteur (L1-L9) sur un second côté dudit réservoir de collecte de sang (11) opposé audit premier côté pour détecter la lumière émise par lesdits émetteurs de lumière (12) et transmise à travers ledit réservoir de collecte de sang (11). Des paramètres de l'installation optique utilisée pour la détection et l'analyse de signal peuvent être réglés individuellement et dynamiquement de telle sorte que des effets perturbateurs, provoqués par exemple par des films absorbants sur la surface intérieure du réservoir de collecte de sang (11), peuvent être identifiés et empêchés pour améliorer ainsi la fiabilité de la détection et l'analyse de signal.
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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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
)