Patent · US Active

Method for detection of flow obstruction in an extracorporeal circuit, apparatus and computer program

US12337094B2 · kind B2 · utility

0Cited by

9References

10Claims

0Family size

Assignee

GAMBRO LUNDIA AB · SE

Inventors

Anders Felding · Malmö, SE
Peter Marklund · Lund, SE
Anders Sneckenborg · Ängelholm, SE

Key dates

Filing date	Jul 31, 2019
Grant date	Jun 24, 2025
Priority date	—
Expiry date	Mar 14, 2041

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2205/3389
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An extracorporeal circulation blood or treatment device (100) comprising an arterial pressure sensor (112) and a blood pump (111) is set up to determine amplitude variation and frequency of the pressure signals received from said arterial pressure sensor (112), calculate a parameter value based on said amplitude variation and said frequency, and issue an alarm if the parameter value exceeds a pre-set threshold value. Such detection aims at monitoring the occurrence of oscillating pressure signals. Such signals indicate an increased risk for hemolysis.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.