BRPI1105211A2 - NON-INVASIVE BLOOD PRESSURE MEASURING APPARATUS FOR APPLICATION - Google Patents

Abstract

NON-INVASIVE BLOOD PRESSURE MEASURING APPARATUS FOR ANTIBRATING APPLICATION comprising a pneumatic pad (1) and air compression and decompression circuits and the measurement signals are generated by the pressure sensor (5) connected to the pneumatic system ( THE); the pneumatic system (A) also comprises an exhaust valve (2), a solenoid valve (3), and an air compressor (4); the electrical signals generated by the pressure sensor (5) being sent to the microprocessor (7); liquid crystal displays (10) and (11); speech synthesis circuits (12) and an audio amplifier (13), in addition to power supply (6), which counter with constant voltage regulator circuits, external controls (8) and (9) which are connected to the microprocessor (7) .

Description

"NON-INVASIVE BLOOD PRESSURE MEASURING APPARATUS FOR APPLICATION TO FORECAST"

The present report

This specification is a patent application proposing a new non-invasive device for blood pressure measurement. The depression measuring apparatus treated herein has a simple and functional design and therefore differs from the prior art equipment.

As is well known, non-invasive forearm blood pressure measuring devices have a complex design solution, which demands high manufacturing costs as well as the need for frequent maintenance and testing.

The present patent application treated here seeks to propose a new equipment of the kind described above, which is characterized especially by the fact that it is obtained by a simple and functional design, which makes it possible to be produced on a large scale with costs. relatively lower. y

The present equipment can be understood from Fig. 1 which schematically depicts its basic constructional configuration according to a block diagram.

The apparatus herein is an electronic type, fully automatic digital type apparatus for noninvasively measuring arterial blood pressure from a patient's forearm measurement using an intermittent type oscillometric measurement method.

In the present device the measurement

It is obtained through an occlusive system composed of pneumatic pad 1 and air compression and decompression circuits and the measurement signals are generated by the pressure sensor 5 connected to the pneumatic system indicated in figure 1 as block "A" during the process of inflating or deflating the pad 1. The pneumatic system "A" comprises, in addition to the aforementioned pneumatic pad 1, with an exhaust valve 2, a solenoid valve 3, and an air compressor 4.

These now electrical signals generated by the pressure sensor 5 will go to microprocessor 7 to be measured and interpreted by mathematical criteria and then presented to the output stages by visual signaling via liquid crystal displays 11 and / or audible through circuits. of speech synthesis 12, in this case passing through an audio amplifier 13.

Regarding your

In operation, the equipment herein provides that initially the pneumatic pad 1 is positioned on the forearm and then fixed and then inflated through the electric air compressor 4 (motor compressor) to about 200 mmHg of pressure, at which time compressor 4 is turned off. and the internal pressure of the cushion 1 steadily decreases through the air exhaust through the exhaust valve (2), with continuous flow rate of 2-3mmHg / sec, which is connected to the pneumatic circuit (block "A"). .

During the deflating process of the pneumatic pad 1, the acoustic signals known as KOROTKOFF sounds appear and which are also converted by the pressure sensor 5 into electrical signals and sent to the microprocessor 7 to be measured and, through mathematical model interpreted and presented in display 11.

After the acoustic signals disappear, the pad 1 is rapidly emptied through a solenoid valve 3 which is controlled by the microprocessor 7. 3

The signals presented to the

Display 11 are:

a) systolic pressure;

b) diastolic pressure;

c) Heartbeat signaling;

d) Heartbeat count;

e) Signaling of cardiac arrhythmia; and

f) Date and time.

This equipment has "Memory Bank (has 2 banks with 60 addresses each); Memory Address Number; Standby Signaling (Hemodynamic Stability); Battery Switch Signaling; by voice of the signals shown on the display 11.

Figure 1 depicting the present patent application shows that the present equipment further includes Power 6, which has constant voltage regulating circuits, external controls 8 and 9 which are connected to the microprocessor 7; and Displays 10 and 11 digital and analog displays showing the results of measurement and / or interpretation of microprocessor 7.

Claims (7)

1 . "NON-INVASIVE BLOOD PRESSURE MEASURING APPARATUS FOR APPLICATION TO ANTIBRATION", characterized in that it is one based on electronic technology, being digital, fully automatic for noninvasively measuring arterial blood pressure from a patient's forearm measurement using an intermittent type oscillometric measurement method; in this device the measurement is obtained through an occlusive system composed of a pneumatic pad (1) and air compression and decompression circuits and the measurement signals are generated by the pressure sensor (5) · - connected to the pneumatic system (A) during the process of inflating or deflating the cushion (1); the pneumatic system (A) comprises, in addition to the aforementioned pneumatic pad (1), with an exhaust valve (2), a solenoid valve (3), and an air compressor (4); The pneumatic system signals (A) are transformed into electrical signals generated by the pressure sensor (5) and sent to the microprocessor (7) to be measured and interpreted by mathematical criteria and then presented to the output stages by Visuali signaling through the liquid crystal displays (10) and (11) and / or audible via speech synthesis circuits ( 12), passing in this case an audio amplifier (13); The present equipment also includes Power (6), which has constant voltage regulating circuits, external controls (8) and (9) that are connected to the microprocessor (7).