JPH02236672A - Organism measuring device - Google Patents

Abstract

PURPOSE:To allow a measuring person to easily grasp visual anomaly by emphatically displaying anomalous measured value in a display mode different from the normal display mode. CONSTITUTION:In an operating part 5, a high SaO2 threshold, a low SaO2 threshold, a high pulse rate threshold, and a low pulse rate threshold are set by operating a key switch, etc. A display part 6 displays the output of a display control part 4. That is, the part 6 is a liquid crystal dot matrix display device or a CRT display device, normaly it displays the measured value, namely, an artery blood oxygen saturation rate, a pulse rate numerical value, and a pulse wave signal, and in an anomolous time, the anomalous measured value is displayed in the mode in which the anomalous value can be discriminated at a glance. Thus when the anomalos value is measured, an anomalous state can be surely transmitted to the measuring person.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a biomeasuring device such as an oximeter, and particularly to a warning display means. <Prior art> An oximeter, which is a type of biomeasuring device, monitors a patient's health condition by measuring pulse rate, arterial blood oxygen saturation (Sa02), etc. If the limit value (upper or lower limit of normal measurement value) is exceeded,
Since it is necessary to immediately take appropriate measures for the patient, it is necessary to notify the doctor etc. that the abnormal measurement value has been detected. However, the conventional method for communicating this emergency situation is to flash the measured value itself on the display screen when an abnormality is detected. There is a problem in that it is difficult to immediately notice that the measurement value is abnormal (a measurement value that exceeds the upper or lower limit of normal measurement values). (Problems to be Solved by the Invention) The present invention provides a biomeasuring device such as an oximeter,
The purpose is to accurately communicate the abnormal state to the measurer when an abnormal measurement value is measured. ? Means for Solving the Problems) In a biomeasuring device such as an oximeter, display program storage means stores a normal display program for displaying normal measured values and an abnormal display program for highlighting abnormal measured values, and an abnormality determination method. means for setting a value; determining means for comparing the measured value with the abnormality judgment value to determine whether the measured value is an abnormal measured value and transmitting a display control signal; and storing the display program in response to the display control signal. A display program selection means for selecting a normal display program or an abnormal display program from the means, and means for displaying measured values by the display program selected by the display program selection means are provided. (Function) Oximeter, which is one of the biomeasuring devices, measures pulse rate.
Although the pulse wave shape and arterial oxygen saturation (SaO) value are measured, the present invention is capable of quickly informing the measurer when an abnormal value, such as an abnormally high or low value, is measured. To determine whether a measured value is abnormal, the measurer sets a criterion value, and if the measured value exceeds the set criterion value, the measured value is (Example) Figure 1 shows a block diagram of an example in which the present invention is applied to an oximeter. In Figure 1, 1 is a part of the sensor. , irradiates the living body to be measured with light of at least two different wavelengths, and detects the light that has passed through or reflected from the living body. 2 is a pulse wave processing unit, which extracts the pulse wave from the output signal of the sensor part 1. Processing such as amplification and filtering is carried out to form a signal. 3 is an arithmetic processing unit composed of a microcomputer, etc., which amplifies the output signal of the pulse wave processing unit 2, that is, the pulse wave signal, and performs processing from the pulse wave signal. It calculates arterial blood oxygen saturation (Sa02 value), pulse rate, etc. 4 is a display control unit, which converts the output signal of the calculation processing unit 3, together with the information of the operation unit 5, into corresponding display data as appropriate. .5 is the operation section, and the high Sa02 limit value, low Sa02 limit value, high pulse rate limit value, and low pulse rate limit value are set as measurement abnormality judgment values by operating key switches, etc.6 is the display section. , displays the output of the display control unit 4.Specifically, the liquid crystal dot matrix
It is a display or CRT display, and normally displays measured values, that is, arterial oxygen saturation, pulse rate value, and pulse wave signal, and in the event of an abnormality, the abnormal measured value is displayed in a format that allows you to identify the abnormal value at a glance, which will be described later. ．． The operation of the above embodiment will be explained using the flowchart shown in FIG. When the measurement starts, a suitable part of the living body, for example, a finger. A pulse wave processing section 2 converts the signal transmitted from the sensor part 1 attached to the ear into a pulse wave signal based on a known method, and then an arithmetic processing section 3 calculates arterial oxygen saturation based on this pulse wave signal. Calculate the degree (Sag2) and pulse rate (#l). Next, the measured Sa02 measurement value and the pulse rate are set as the measurement abnormality judgment value, that is, the high Sa02 limit value,
Low Sa02 limit value. Compare with the high pulse rate limit value and low pulse rate limit value to determine whether the measured value is an abnormal value (
#2). If the measured value is not abnormal, the measured value is displayed in the normal display format on the display (#3). If the measured value is abnormal, the content of the abnormal value is determined (#4), and the abnormal value is highlighted on the display unit 6 in a display format that allows the abnormal value to be confirmed at a glance (#5). ．． After displaying the measured value, return to operation #1 and repeat the above operation. Next, the abnormal value display method in step #5 will be explained. In the display section 6, if the measured value is not an abnormal value,
As shown in Fig. 3A, the measured Sa02 value, pulse rate, and pulse waveform are simply displayed side by side, but if the measured value is an abnormal value, it is shown in Fig. 3B-G. like,
Measured Sa02 measurement value. Among the pulse rates, the measured value that is an abnormal value (Sa02 is displayed as an abnormal value in Fig. 3) is highlighted and displayed. FIG. 3B shows a first embodiment in which abnormal measurement values are displayed in an enlarged manner. At this time, it is more effective to use a blinking display at the same time. FIG. 3C shows a second embodiment in which abnormal measurement values are displayed in reverse video. In this case, it is more effective to display the reversed display and normal display alternately. FIG. 3D shows a third embodiment in which abnormal measurement values are displayed surrounded by an outer frame. At this time, it is more effective to use a blinking display at the same time.
FIG. 3E shows a fourth embodiment in which a message suitable for an abnormal measurement value is displayed. At this time, it is more effective to use a blinking display at the same time. FIG. 3F shows a fifth embodiment in which abnormal measurement values are enlarged and displayed in stages. As a sixth example, when the measured value becomes an abnormal value, the abnormal value Sa0
2. There is a method to display the measured value or pulse rate in different colors. At this time, it is more effective to perform a blinking display at the same time.The flowchart of the above embodiment and FIG. 3 are diagrams showing the display format of the measured values.

Claims (1)

[Claims] display program storage means storing a normal display program for displaying normal measured values and an abnormal display program for highlighting abnormal measured values; means for setting an abnormality judgment value; determining means for determining whether a measured value is an abnormal measured value and transmitting a display control signal; display program selection means for selecting a normal display program or an abnormal display program from the display program storage means in accordance with the display control signal; and means for displaying measured values using a display program selected by the display program selection means.