Parallel measurement alarm processor
First Claim
Patent Images
1. A method of activating an alarm on a pulse oximeter capable of determining a blood oxygen saturation measurement, the method comprising:
- determining a smoothed measurement of blood oxygen saturation from a signal input responsive to a blood oxygen saturation of body tissue at a measurement site on a patient;
determining a predictive measurement of blood oxygen saturation from the signal input;
suppressing an alarm when said oxygen saturation is in a normal range or recovering toward the normal range; and
activating an alarm when said oxygen saturation is below the normal range and is not recovering toward the normal range.
3 Assignments
0 Petitions
Accused Products
Abstract
An alarm processor suppresses alarms when a physiological parameter is below a predetermined value but recovering toward a normal range.
-
Citations
11 Claims
-
1. A method of activating an alarm on a pulse oximeter capable of determining a blood oxygen saturation measurement, the method comprising:
-
determining a smoothed measurement of blood oxygen saturation from a signal input responsive to a blood oxygen saturation of body tissue at a measurement site on a patient;
determining a predictive measurement of blood oxygen saturation from the signal input;
suppressing an alarm when said oxygen saturation is in a normal range or recovering toward the normal range; and
activating an alarm when said oxygen saturation is below the normal range and is not recovering toward the normal range. - View Dependent Claims (2, 3, 4)
-
-
5. A pulse oximeter which activates an alarm, the pulse oximeter comprising:
-
a signal input responsive to a blood oxygen saturation of body tissue at a measurement site on a patient;
a first parameter processor capable of receiving the signal input and capable of determining a first measurement of the blood oxygen saturation;
a first comparator capable of determining how the first measurement relates to a first predetermined characteristic;
a second parameter processor capable of receiving the signal input and capable of determining a second measurement of the blood oxygen saturation, wherein the determination of the second measurement is different from the determination of the first measurement;
a second comparator capable of determining how the second measurement relates to a second predetermined characteristic;
an alarm capable of being activated based on the relationship between the first measurement and the first predetermined characteristic or based on the relationship between the second measurement and the second predetermined characteristic. - View Dependent Claims (6, 7, 8, 9, 10)
-
-
11. A method of activating an alarm on a pulse oximeter capable of determining a blood oxygen saturation measurement, the method comprising:
-
receiving a signal input responsive to a blood oxygen saturation of body tissue at a measurement site on a patient;
determining at least one of a first measurement of the blood oxygen saturation and a second measurement of the blood oxygen saturation, wherein the determination of the second measurement is different from the determination of the first measurement;
determining at least one of how the first measurement relates to a first predetermined characteristic and how the second measurement relates to a second predetermined characteristic;
activating an alarm based on at least one of the relationship between the first measurement and the first predetermined characteristic or the relationship between the second measurement and the second predetermined characteristic.
-
Specification