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Detecting blood path disruption in extracorporeal blood processing

Holmer, Mattias LU ; Olde, Bo and Solem, Kristian LU (2015) WO2012175267 (A1)
Abstract
A device monitors a blood path from a blood vessel access of a human subject through an extracorporeal blood processing apparatus and back to the blood vessel access. A pumping device in the blood path is operable to pump blood through the blood path from the blood withdrawal device to the blood return device. The monitoring device obtains pressure data from a pressure sensor arranged upstream of the pumping device in the blood path, and processes the pressure data for detection of a disruption of the blood path downstream of the pumping device, e.g. caused by VND (Venous Needle Dislodgement). The disruption is detected by evaluating presence/absence of cross-talk pulses at the pressure sensor, where the cross-talk pulses originate from... (More)
A device monitors a blood path from a blood vessel access of a human subject through an extracorporeal blood processing apparatus and back to the blood vessel access. A pumping device in the blood path is operable to pump blood through the blood path from the blood withdrawal device to the blood return device. The monitoring device obtains pressure data from a pressure sensor arranged upstream of the pumping device in the blood path, and processes the pressure data for detection of a disruption of the blood path downstream of the pumping device, e.g. caused by VND (Venous Needle Dislodgement). The disruption is detected by evaluating presence/absence of cross-talk pulses at the pressure sensor, where the cross-talk pulses originate from one or more pulse generators in the extracorporeal blood processing apparatus and have propagated on a propagation path in a direction downstream of the pumping device through the blood return device, the blood vessel access and the blood withdrawal device to the pressure sensor. (Less)
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Patent
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published
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patent number
WO2012175267 (A1)
language
English
LU publication?
yes
id
71b5fa85-eefb-44a4-a1b3-a6453e4b5d5b (old id 5365032)
alternative location
http://worldwide.espacenet.com/publicationDetails/originalDocument?FT=D&date=20121227&DB=EPODOC&locale=en_EP&CC=WO&NR=2012175267A1&KC=A1&ND=4
date added to LUP
2015-05-04 14:50:08
date last changed
2016-04-16 11:26:45
@misc{71b5fa85-eefb-44a4-a1b3-a6453e4b5d5b,
  abstract     = {A device monitors a blood path from a blood vessel access of a human subject through an extracorporeal blood processing apparatus and back to the blood vessel access. A pumping device in the blood path is operable to pump blood through the blood path from the blood withdrawal device to the blood return device. The monitoring device obtains pressure data from a pressure sensor arranged upstream of the pumping device in the blood path, and processes the pressure data for detection of a disruption of the blood path downstream of the pumping device, e.g. caused by VND (Venous Needle Dislodgement). The disruption is detected by evaluating presence/absence of cross-talk pulses at the pressure sensor, where the cross-talk pulses originate from one or more pulse generators in the extracorporeal blood processing apparatus and have propagated on a propagation path in a direction downstream of the pumping device through the blood return device, the blood vessel access and the blood withdrawal device to the pressure sensor.},
  author       = {Holmer, Mattias and Olde, Bo and Solem, Kristian},
  language     = {eng},
  note         = {Patent, Patent Number: WO2012175267 (A1)},
  title        = {Detecting blood path disruption in extracorporeal blood processing},
  year         = {2015},
}