The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 15, 2011
Filed:
Sep. 12, 2005
Leif Sörnmo, Lund, SE;
Kristian Solem, Lund, SE;
Leif Sörnmo, Lund, SE;
Kristian Solem, Lund, SE;
Gambro Lundia AB, , SE;
Abstract
The invention relates to cardiac-activity based prediction of a rapid drop in a patient's blood pressure during hemodialysis. A proposed alarm apparatus includes an input interface, primary and secondary analysis units and an alarm-generating unit. An electrocardiogram signal (H) of the patient is received via the input interface by the primary analysis unit, which in response thereto produces a heart-rate-variability signal (P). The secondary analysis unit determines an intensity of ectopic beats (P) based on the electrocardiogram signal (H). The alarm-generating unit investigates whether the intensity of ectopic beats (P) is relatively low or relatively high. In case of a relatively low intensity, the unit triggers an alarm signal (α) indicative of an estimated rapid blood pressure decrease if the heart-rate-variability signal (P) fulfills a first alarm criterion. In case of a relatively high intensity, however, the unit triggers the alarm signal (α) if the intensity of the ectopic beats (P) fulfills a second alarm criterion.