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1. WO2005065749 - EMPTY CONTAINER DETECTION USING CONTAINER SIDE PRESSURE SENSING

Publication Number WO/2005/065749
Publication Date 21.07.2005
International Application No. PCT/US2004/043616
International Filing Date 28.12.2004
IPC
A61M 5/142 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES 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
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
142Pressure infusion, e.g. using pumps
A61M 5/168 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES 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
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
168Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters
CPC
A61M 2205/18
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
2205General characteristics of the apparatus
18with alarm
A61M 2205/3561
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
2205General characteristics of the apparatus
35Communication
3546Range
3561local, e.g. within room or hospital
A61M 5/14228
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
142Pressure infusion, e.g. using pumps
14212Pumping with an aspiration and an expulsion action
14228with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member
A61M 5/1684
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
168Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; ; Monitoring media flow to the body
16831Monitoring, detecting, signalling or eliminating infusion flow anomalies
1684by detecting the amount of infusate remaining, e.g. signalling end of infusion
A61M 5/16854
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
168Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; ; Monitoring media flow to the body
16831Monitoring, detecting, signalling or eliminating infusion flow anomalies
16854by monitoring line pressure
Applicants
  • CARDINAL HEALTH 303, INC. [US]/[US] (AllExceptUS)
Inventors
  • VANDERVEEN, Timothy, W.
  • BUTTERFIELD, Robert, D.
Agents
  • RUNK, Thomas, A.
Priority Data
10/750,08231.12.2003US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) EMPTY CONTAINER DETECTION USING CONTAINER SIDE PRESSURE SENSING
(FR) DETECTION DE RECIPIENTS VIDES UTILISANT LE CAPTAGE DE PRESSION DU COTE RECIPIENT
Abstract
(EN)
A system and method for monitoring changes in the pressure of a fluid line upstream of an infusion pump to determine when a fluid container has emptied, and to provide a signal indicating that the container needs replacement or replenishment. The difference between averaged pressures over separate time periods is monitored to determine when the fluid container is empty. The system and method are applicable to primary and secondary fluid container setups and can detect the point where the secondary has been emptied and the primary flow has resumed.
(FR)
L'invention concerne un système et un procédé qui permettent de surveiller les changements de pression d'un conduit pour fluide en amont d'une pompe à perfusion afin de déterminer le moment où un récipient pour fluide est vide et de fournir un signal indiquant que le récipient doit être remplacé ou rempli. La différence entre les pressions moyennées sur des périodes séparées est surveillée afin de déterminer le moment où le récipient pour fluide est vide. Le système et le procédé selon l'invention peuvent être appliqués à des réglages primaires et secondaires du récipient pour fluide et permettent de détecter le point auquel le flux secondaire a été vidé et le flux primaire a été renouvelé.
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