DE29511738U1 - Electronic sphygmomanometer - Google Patents

Description

GLAWE, DELFS ₁ MOLL & PARTNERS I %\"7 F&TIeIÄaNWÄLTE

. * ! &idigr; * &idigr; * » 'AUTHORIZED REPRESENTATIVES BEFORE THE EUROPEAN PATENT OFFICE'

RICHARD GLAWE, Dr.-Ing. (1952-1985) KUUS DELFS*, Dipl.-Ing., Hamburg WALTER MOLL*, Dipl.-Phys. Dr. rer. nat., Munich HEINRICH NIEBUHR*, Dip!.-Phys. Dr. phil. habil., Hamburg ULRICH GLAWE*, Dipl.-Phys. Dr. rer. nat., Munich BERNHARD MERKAU*, Dipl.-Phys., Munich Michael Yeh CHRISTOF KEUSSEN, Dipl.-Chem, Dr. rer. nat., Hamburg

. &Ogr;. . PO Box 26 01 62 PO Box 13 03 91

80058 Munich 20103 Hamburg

Liebherrstrasse 20 Rothenbaumchaussee

80538 Munich 20148 Hamburg

Phone (089) 22 46 65 Phone (040) 4 10 20

Fax (089) 22 39 38 (G3) Fax (040) 45 89 84 (G4.G3)

Telephone 5 22 505

HAMBURG &rgr; 16619/95 N/Ma{#177)

Electronic sphygmomanometer

The present invention relates to a sphygmomanometer.

It is known that blood pressure has a very great impact on health. It is recommended that one measures one's blood pressure regularly. A variety of sphygmomanometers for measuring blood pressure are known, which either measure the pressure using a mercury manometer or are electronic devices, and these devices have also appeared on the market. However, these sphygmomanometers cannot record the measured data automatically, so they cannot be referred to later. The operator or the patient must therefore keep a notebook to record the measured data so that conclusions can be drawn from these records.

An object of the present invention is to provide an electronic sphygmomanometer that can record the measured data including the measurement time, maximum blood pressure, minimum blood pressure and heart rate. Another object of the present invention is to provide an electronic

Dresdner Bank AG Hamburg 04 030 448 00 (bank code 20*0 800*00) "pOstbank Harnburg*1476 07-200 (bank code 200 100 20)

Sphyginomanometer suitable for recording the measured data of two patients.

According to a preferred embodiment of the present invention, the electronic sphygmomanometer comprises a main control circuit, a power regulation and control circuit for supplying the necessary working voltage to the electronic circuit of the electronic sphygmomanometer; a measuring circuit controlled by the main control circuit to measure the patient's blood pressure; a display for displaying the measured data; a pressure sensor and amplifier circuit for detecting and amplifying measured data from the measuring circuit, then sending the processed data to the main control circuit for display by the display; a motor control circuit controlled by the main control circuit to inflate a pressure cuff and a pressure bag; a pressure cuff and a pressure bag for attaching to the patient's wrist, controlled by the motor control circuit to apply pressure to the artery; an electromagnetic valve control circuit controlled by the main control circuit to relax the pressure cuff and the pressure bag; a memory for storing the measured blood pressure data; a memory selection circuit which is controlled to recall stored data from the memory and show it through the display; and a key switch circuit which is controlled to operate the main control circuit.

The invention is described below by way of example with reference to the accompanying drawings.

Fig. 1 is a circuit block diagram of the embodiment of the invention;

Fig. 2 is a circuit diagram of the electronic sphygmomanometer according to the invention; and

Fig. 3 is a flow chart showing the operation of the main control circuit of the invention.

As shown in Fig. 1, the electronic sphygmomanometer of the invention generally comprises a main control circuit 10, a power regulation and control circuit 20, a pressure sensor and amplifier circuit 30, a memory selection circuit 40, a key switch circuit 50, an electromagnetic valve control circuit 60, a motor control circuit 70, a display 70 and a measuring circuit 90. The output terminals of the power regulation and control circuit 20, the pressure sensor and amplifier circuit 30, the memory selection circuit 40 and the key switch circuit 50 are each connected to an input terminal of the main control circuit 10. An output terminal of the main control circuit 10 is each connected to the input terminals of the electromagnetic valve control circuit 60, the motor control circuit 70, the display 80 and the measuring circuit 90.

Referring now to Fig. 2, when the power switch 101 is depressed, the power regulation and control circuit 20 supplies the necessary operating voltage to all the sub-circuits of the electronic sphygmomanometer. The key switch circuit 50 includes a time setting control key for setting the measurement time, a recall key for recalling measured data from memory for data review by the user or physician, a memory key for storing the currently measured value in memory, and a start key for driving the main control circuit 10 to begin measuring blood pressure. When the start key is depressed, the main control circuit 10 drives the motor control circuit 70 to operate the motor which controls inflation, causing the pressure cuff and pressure bag to inflate while simultaneously driving the measuring circuit 90 to begin measuring the patient's blood pressure and heart rate.

start. When the measurement is finished, the main control circuit 10 drives the electromagnetic valve control circuit 60 to release the electromagnetic pressure control valve to release the pressure from the pressure cuff and pressure bag. The measured value from the measuring circuit 90 is detected and amplified by the pressure sensor and amplifier circuit 30, then sent back to the main control circuit 10 for processing; then, the processed data including the measurement time (month, day, hour, minute), maximum blood pressure, minimum blood pressure and heart rate are shown by the display 80. When the memory selection circuit 40 is depressed, the main control circuit 10 drives the display 80 to show one or two sets of measured data obtained from two patients in the last fourteen measurements. The measured data also includes the measurement time (month, day, hour, minute), maximum blood pressure, minimum blood pressure and heart rate.

Referring now to Fig. 3, when the power is on at 102, the start key at 103 is depressed to begin the measuring process 104. The measured data is shown by the display at step 105. If the currently measured data is not to be stored in memory, return to step 102. If the currently measured data is to be stored in memory, the memory selection circuit key is depressed at step 106 to store the currently measured data in memory at step 107. If the recall key is depressed at 108, the stored data is shown by the display at step 109. If the time setting control key is depressed at step 1011, proceed immediately to step 1012 to reset the date and time.

The invention can be summarized as follows. The electronic sphygmomanometer has a main control

circuit; a power regulation and control circuit for supplying the necessary working voltage to the electrical circuit of the electronic sphygmomanometer; a measuring circuit controlled by the main control circuit to measure the patient's blood pressure and heart rate; a display for showing measured data; a pressure sensor and amplifier circuit for detecting and amplifying measured data from the measuring circuit, which then sends the processed signals to the main control circuit for display by the display; a motor control circuit controlled by the main control circuit to inflate a pressure cuff and a pressure bag; a pressure cuff and a pressure bag for attaching to the patient's wrist, controlled by the motor control circuit to apply pressure to the artery; an electromagnetic valve control circuit controlled by the main control circuit to relax the pressure cuff and the pressure bag; a memory for storing the measured blood pressure data; a memory selection circuit controlled to recall stored data from the memory and display it on the display; and a key switch circuit controlled to operate the main control circuit.

It will be understood that the drawings are for illustration purposes only and are not intended to be a definition of the limits and scope of the disclosed invention.

Claims (3)

Protection claims 1. Electronic sphygmomanometer, characterized in that it has a main control circuit (10); a power regulation and control circuit (20) for supplying the necessary operating voltage to the electronic circuit (10, 30, 40, 50, 60, 70, 80, 90) of the electronic sphygmomanometer; a measuring circuit (90) controlled by the main control circuit (10) for measuring the blood pressure and heart rate of the patient; a display (80) for showing measured data; a pressure sensor and amplifier circuit (30) for detecting and amplifying measured data from the measuring circuit (90), which then sends the measured data to the main control circuit (10) for display by the display (80); a motor control circuit (70) controlled by the main control circuit (10) to inflate a pressure cuff and a pressure bag; a pressure cuff and a pressure bag for attachment to the patient's wrist, controlled by the motor control circuit (70) to apply pressure to the artery; an electromagnetic valve control circuit (60) controlled by the main control circuit (10) to release the pressure cuff and the pressure bag; » a memory for storing the measured blood pressure data; a memory selection circuit (40) controlled to recall stored data from the memory and to display it on the display (80); and a key switch circuit (5O) ₇ which is controlled to operate the main control circuit (10). 2. An electronic sphygmomanometer according to claim 1, characterized in that the key switch circuit (50) comprises a time setting control key for setting a measurement time, a recall key for recalling measured data from the memory, a storage key for storing the currently measured value in the memory, and a start key for driving the main control circuit to start measuring the blood pressure. 3. Electronic sphygmomanometer according to claim 1 or 2, characterized in that the memory selection circuit controls the main control circuit so that two sets of measured data of at least fourteen measurements of two persons are shown by the display.