Devices, a computer program product and a method for data extraction
First Claim
1. A device for monitoring the integrity of a fluid connection between an extracorporeal fluid system and a vascular system of a subject having a natural breathing system, said system comprising:
- a mechanical pulse generator configured to generate a first pulse;
a pressure sensor configured to sense the first pulse and a second pulse originating from the natural breathing system, and output a measurement signal;
a signal processor; and
a memory device storing a plurality of instructions, which when executed by the signal processor, cause the signal processor to;
(i) analyze the measurement signal to isolate the first pulse and the second pulse;
(ii) monitor whether the second pulse remains present in the measurement signal, and(iii) when the second pulse originating from the natural breathing system is not present in the measurement signal, send a signal causing at least one of;
(a) an alarm device to activate an alarm, (b) a blood pump to stop, or (c) a valve to close.
1 Assignment
0 Petitions
Accused Products
Abstract
A monitoring device receives a measurement signal obtained by a pressure sensor in an extracorporeal fluid system, such as an extracorporeal blood circuit for a dialysis machine which is in contact with a vascular system of a subject via a fluid connection. The monitoring device processes the measurement signal to identify pressure data that represents pulses originating from a first physiological phenomenon in the subject, excluding the heart of the subject. The first physiological phenomenon may be any of reflexes, voluntary muscle contractions, non-voluntary muscle contractions, a breathing system of the subject, an autonomous system of the subject for blood pressure regulation, or an autonomous system of the subject for body temperature regulation. The monitoring device may detect, present, track or predict a disordered condition of the subject using the pressure data, or monitor the integrity of the fluid connection based on the pressure data.
118 Citations
10 Claims
-
1. A device for monitoring the integrity of a fluid connection between an extracorporeal fluid system and a vascular system of a subject having a natural breathing system, said system comprising:
-
a mechanical pulse generator configured to generate a first pulse; a pressure sensor configured to sense the first pulse and a second pulse originating from the natural breathing system, and output a measurement signal; a signal processor; and a memory device storing a plurality of instructions, which when executed by the signal processor, cause the signal processor to; (i) analyze the measurement signal to isolate the first pulse and the second pulse; (ii) monitor whether the second pulse remains present in the measurement signal, and (iii) when the second pulse originating from the natural breathing system is not present in the measurement signal, send a signal causing at least one of;
(a) an alarm device to activate an alarm, (b) a blood pump to stop, or (c) a valve to close. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
Specification