JPS59108537A - Electronic hemomanometer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a means for controlling the blood pressure detection state of a biological signal measuring device that is mounted on a vehicle such as an emergency t-shirt and measures human body signals such as blood pressure and heart rate. It is. The present invention will be explained with reference to the figures below.

FIG. 1 is a diagram showing the principle of an FC electronic blood pressure monitor in which the present invention is implemented, and FIG. 2 is a diagram showing typical output No. 16 of the same. 1 is the subject, 2 and 3 are the subjects' right and left arms, and the subject's JL? Hiroya (cardiac potential detection electrode) for detecting electric potential. Connect the wire 2b to the poles 2a and 3a.

It is connected to the cardiac potential detection circuit 4 via 3b. The output signal p1 shown in FIG. 3 is output No. 16 of the cardiac potential detection circuit 4, and R1+6 in FIG. 2 is synchronized with the first cardiac potential and the subsequent second cardiac potential.

5 ar This is a rubber tube that leads to a pressure sensor (not shown) and a microphone (not shown) built into the blood pressure detection circuit 7.The blood pressure detection circuit receives a signal S indicating pulse pressure as shown in FIG.
and a signal s indicating Korotkoff sound (hereinafter referred to as "sound"), 2 outputs. K! μ and I are synchronized with the potential signal. This is an example of missing blood pressure measurement in a quiet place.In such a case, there is no need to consider synchronizing the cardiac potential signal with pulse pressure and sound, and it is necessary to stop synchronizing the cardiac position. If a person's heart potential is too low to measure, their blood pressure will automatically not be measured either. This is unreasonable. Ten thousand,
When attempting to measure blood pressure in a vehicle such as an ambulance, as shown in Figure 2, the noise and pulsation of the vehicle are detected by the blood pressure detection circuit, and signals such as P2 + Ps and Kt + K are output. Blood pressure cannot be determined by pulse pressure and sound alone. In such cases, it is very effective to synchronize pulse pressure and Kft cardiac potential, and S1+8! + AND of S3
', as shown in FIG. 2, there is no noise or sound output at all, making it possible to measure blood pressure in the same way as in a quiet place.

As described above, the present invention is useful for detecting blood pressure in a biological signal measuring device used in a vehicle or other quiet place. This provides a means to perform this synchronously or asynchronously. The present invention will be explained below with reference to the drawings.

Is Fig. 6 one of the embodiments of the present invention? FIG.

8a 3 human powered AND element, 9 is inverter, IQ.

Reference numeral 11 is a two-manpower AND element, and 12 is a two-manpower OR element. 13 is one gate “H1g” of the AND element 1o.
14 is a resistor for maintaining the gate t'' state.
This is a switch for setting the state to “Low”.Day 1 +
St + 83 corresponds to FIG. 2 and represents an electrocardiogram signal, a pulse pressure signal, and a sound signal, respectively. switch 14
When the AND element 100 is turned ON, one gate f' [: -Low'' state, so the pulse pressure signal S,
cannot pass through the AND element 1o, and the AND element 8 obtains an AND with the cardiac potential signal S1. At this time, the gate U''Low = of the OR element 12 connected to the output of the AND element 10 is the same as the output of the AND element 8 (i), and the signal is The AND element 11 performs an AND operation with the X sound signal s3, and the AND element 11 outputs the AND output of the cardiac potential signal S1, the pulse pressure signal B, and the sound signal S (8□×εx
×Bx) is obtained. Next, when the switch 14 is turned OFF, the gates of the inverter 9 and the AND element 10 are “
At this point, the output of the inverter becomes "Low", and the AND element 8μ becomes non-conductive, and the AND element becomes conductive. In other words, the cardiac potential signal cannot pass through the AND element 8, so the AND element 11 The output of is the pulse pressure signal S
, and becomes an AND of only the sound 1d number S8. This corresponds to measuring the blood pressure value when cardiac potential detection is unnecessary or when it is impossible to perform an iTJ. That is, according to the invention, switch 1
The blood pressure measurement state can be extremely easily changed between cardiac potential synchronization and cardiac sleep position asynchronization by turning ON/OFF each of them.

Next, FIG. 4 is a diagram showing another embodiment of the present invention. 2
Reference numerals a and 5a denote cardiac potential detection circuits, which are surrounded by conductors IfM2b, 3bVf:, connected to the electrodes 2a and Aa, and shield tubes 15a and 16& for preventing induction noise. The shield 'Mf15al 16a is connected to the conductors 15b, 16
b (the conducting wires 15b and 16b are connected/)),
It is connected to the ground via the socket 17 and the socket socket 13i. 16c is earth if ai. Also, the conducting wire 2
b and 3b are led to the cardiac potential detection circuit (not shown) through the socket 17 and the socket by conductive wires 2c and 3C. Reference numeral 19 indicates a housing of the biosignal measuring device.

A conductive wire 15c connected to the conductive wire 15b is connected to the resistor 16 and connected to one gate of the inverter 9 and the AND element 100. Now, when cardiac potential detection is being performed,
Since the socket 17 is inserted into the socket socket 18, the conductor 15c is connected to the ground via the conductor 15bi, and one of the gates of the inverter 9 and the AND element 10 is connected to the ground through the conductor 15bi.
One is kept in the "Low" state. Next, if the electrocardiogram sound is not detected or cannot be detected, when the 17 k sockets are pulled out, the connection between the four doors 150 and the ground is cut off, and one gate of the inverter 9 and the AND element 10 is disconnected. is in the "H1gh" state. In other words, the switch 14 is set to 0 when the socket socket 18 of the socket 17 is inserted or removed.
It corresponds to N10FF. In addition, if cardiac potential detection is not required, removing the two or three cardiac potential detection potentials eliminates the need to expose the subject to dangers such as contraindicated % falcon.
2. Cardiac potential detection circuit? Baking soda is useful in protecting against the destructive force caused by surge voltage. At the same time as the pole is removed, the blood pressure detection becomes asynchronous with the position detection, so it is convenient to handle.

As described above, the present invention has an extremely simple configuration that allows for extremely easy switching of synchronization/desynchronization of blood pressure detection with cardiac potential detection, which is essentially necessary for blood pressure detection when mounted on a vehicle. It has great practical value.

[Brief explanation of the drawing]

FIG. 1 is a diagram illustrating the operating principle of an electronic blood pressure monitor according to the present invention, and FIG. 2 shows output signals of a heart position detection circuit and a blood pressure detection circuit in the electronic blood pressure monitor. FIG. 3 is a diagram showing two embodiments of the present invention, and FIG. 4 is a diagram showing another embodiment of the present invention. FIG. 1... Subject 2a, 5a... Cardiac potential detection electrode 4.
... Cardiac potential detection circuit 7... Blood pressure detection circuit 8,10
゜11...AND element 9...Inverter 12.
...OR element 13...Resistor 14...Switch 1
5a, 16a... Shield tube 17... Socket 18
... Socket receptacle 19 ... Housing of biosignal measuring device. That's all Figure 1 5txS2〆s3 Figure 3

Claims (1)

[Claims] In the blood pressure detection, the pulse pressure and Korotkoff sound detection and the cardiac potential detection are all synchronized or desynchronized, and the means is performed by controlling the gate 1 pressure of the cooking element, or An electronic sphygmomanometer having means for controlling the gate voltage of the element by turning on/off a switch or inserting and removing a socket for connecting a conductor of a cardiac potential detection electrode to a cardiac potential detection circuit.