阅读说明：本技术 压力绷带点位测压装置 (Pressure bandage point location pressure measuring device ) 是由 王静 钟献满 陆宇霞 苏少杭 孙洁 于 2019-10-22 设计创作，主要内容包括：本发明公开了一种压力绷带点位测压装置,包括多个用于置于压力绷带的不同点位处的压力传感器、与压力传感器一一对应的滤波整形电路、MCU电路、电池、降压电路、充电保护电路、USB接口电路、LCD电路、显示器和FLASH电路；压力传感器检测对应点位的压力信号,滤波整形电路将压力信号滤波整形成模拟电压信号传输至MCU电路,MCU电路基于模拟电压信号获得对应的压力值并将获得的压力值通过LCD电路传输至显示器显示、且将压力值存储至FLASH电路；降压电路对电池的电压进行降压稳压信号并将稳压信号传输至MCU电路；MCU电路控制USB接口电路对电池进行充电、控制充电保护电路对电池进行充电保护。(The invention discloses a pressure bandage point location pressure measuring device, which comprises a plurality of pressure sensors, a filter shaping circuit, an MCU circuit, a battery, a voltage reduction circuit, a charging protection circuit, a USB interface circuit, an LCD circuit, a display and an FLASH circuit, wherein the pressure sensors are arranged at different point locations of a pressure bandage; the pressure sensor detects pressure signals of corresponding points, the filter shaping circuit filters and shapes the pressure signals into analog voltage signals and transmits the analog voltage signals to the MCU circuit, the MCU circuit obtains corresponding pressure values based on the analog voltage signals, transmits the obtained pressure values to the display through the LCD circuit for display, and stores the pressure values to the FLASH circuit; the voltage reduction circuit is used for reducing and stabilizing voltage signals of the voltage of the battery and transmitting the voltage signals to the MCU circuit; the MCU circuit controls the USB interface circuit to charge the battery and controls the charging protection circuit to charge and protect the battery.)

1. A pressure bandage point location pressure measuring device is characterized by comprising a plurality of pressure sensors, filter shaping circuits, an MCU circuit, a battery, a voltage reduction circuit, a charging protection circuit, a USB interface circuit, an LCD circuit, a display and an FLASH circuit, wherein the pressure sensors are used for being arranged at different point locations of a pressure bandage;

the pressure sensor is electrically connected with the MCU circuit through a corresponding filter shaping circuit, the battery is electrically connected with the MCU circuit through a voltage reduction circuit, the battery is electrically connected with the MCU circuit through a charging protection circuit, the battery is electrically connected with the MCU circuit through a USB interface circuit, the MCU circuit is electrically connected with the display through an LCD circuit, and the MCU circuit is electrically connected with the FLASH circuit;

the pressure sensor is used for detecting pressure signals of corresponding point positions, the filter shaping circuit is used for filtering and shaping the pressure signals into analog voltage signals and transmitting the analog voltage signals to the MCU circuit, and the MCU circuit is used for obtaining corresponding pressure values based on the analog voltage signals, transmitting the obtained pressure values to the display through the LCD circuit for displaying and storing the pressure values to the FLASH circuit;

the voltage reduction circuit is used for reducing and stabilizing voltage signals of the voltage of the battery and transmitting the voltage signals to the MCU circuit;

the MCU circuit is used for controlling the USB interface circuit to charge the battery and controlling the charging protection circuit to charge and protect the battery.

2. The pressure bandage point location pressure measurement device of claim 1, wherein said pressure bandage point location pressure measurement device further comprises a switching circuit, said switching circuit being electrically connected to said MCU circuit.

3. The pressure bandage point location pressure measurement device of claim 1, wherein the filter shaping circuit comprises a first resistor, a capacitor, a second resistor, a third resistor, a fourth resistor and an operational amplifier;

one end of the pressure sensor is connected with 3.3V voltage, the other end of the pressure sensor is grounded through a first resistor, the other end of the pressure sensor is electrically connected with the negative input end of the operational amplifier through a capacitor, the negative input end of the operational amplifier is electrically connected with the output end of the operational amplifier through a second resistor, the positive input end of the operational amplifier is connected with 3.3V voltage through a third resistor and is grounded through a fourth resistor, and the output end of the operational amplifier is electrically connected with an AD sampling port of the MCU circuit.

Technical Field

The invention relates to the technical field of pressure monitoring, in particular to a pressure bandage point location pressure measuring device.

Background

Patients with venous leg ulcers or lymphedema require pressure therapy, generally pressure bandages are used, and the control of pressure is completely controlled by the subjective judgment and proficiency of the bandage nurse. The patient will remove himself because of the discomfort of tightness felt by himself, and the nurse cannot obtain a relatively accurate assessment of the pressure by means of objective numerical or remote monitoring, in order to prevent necrosis of the extremities due to excessive pressure from following the patient's own removal. In addition to not functioning properly, removal also creates problems with patient compliance and patient reliability.

Disclosure of Invention

Aiming at the problems and the defects in the prior art, the invention provides a novel pressure bandage point location pressure measuring device.

The invention solves the technical problems through the following technical scheme:

the invention provides a pressure bandage point location pressure measuring device which is characterized by comprising a plurality of pressure sensors, filter shaping circuits, an MCU (microprogrammed control unit) circuit, a battery, a voltage reduction circuit, a charging protection circuit, a USB (universal serial bus) interface circuit, an LCD (liquid crystal display) circuit, a display and an FLASH circuit, wherein the pressure sensors are used for being arranged at different point locations of a pressure bandage;

the pressure sensor is electrically connected with the MCU circuit through a corresponding filter shaping circuit, the battery is electrically connected with the MCU circuit through a voltage reduction circuit, the battery is electrically connected with the MCU circuit through a charging protection circuit, the battery is electrically connected with the MCU circuit through a USB interface circuit, the MCU circuit is electrically connected with the display through an LCD circuit, and the MCU circuit is electrically connected with the FLASH circuit;

the pressure sensor is used for detecting pressure signals of corresponding point positions, the filter shaping circuit is used for filtering and shaping the pressure signals into analog voltage signals and transmitting the analog voltage signals to the MCU circuit, and the MCU circuit is used for obtaining corresponding pressure values based on the analog voltage signals, transmitting the obtained pressure values to the display through the LCD circuit for displaying and storing the pressure values to the FLASH circuit;

the voltage reduction circuit is used for reducing and stabilizing voltage signals of the voltage of the battery and transmitting the voltage signals to the MCU circuit;

the MCU circuit is used for controlling the USB interface circuit to charge the battery and controlling the charging protection circuit to charge and protect the battery.

Preferably, the pressure bandage point location pressure measuring device further comprises a switching circuit, and the switching circuit is electrically connected with the MCU circuit.

Preferably, the filter shaping circuit comprises a first resistor, a capacitor, a second resistor, a third resistor, a fourth resistor and an operational amplifier;

one end of the pressure sensor is connected with 3.3V voltage, the other end of the pressure sensor is grounded through a first resistor, the other end of the pressure sensor is electrically connected with the negative input end of the operational amplifier through a capacitor, the negative input end of the operational amplifier is electrically connected with the output end of the operational amplifier through a second resistor, the positive input end of the operational amplifier is connected with 3.3V voltage through a third resistor and is grounded through a fourth resistor, and the output end of the operational amplifier is electrically connected with an AD sampling port of the MCU circuit.

On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.

The positive progress effects of the invention are as follows:

according to the invention, when a nurse presses the pressure bandage, the nurse can monitor the pressure conditions of different point positions in the pressure bandage in a ready manner and display the pressure values through the display, so that the nurse can conveniently master the pressure conditions of different point positions when the nurse presses the pressure bandage. In addition, the monitoring of the pressure condition during bandage pressing can be carried out through the Bluetooth and APP ends.

Drawings

Fig. 1 is a schematic structural view of a pressure bandage point location pressure measuring device according to a preferred embodiment of the present invention.

Fig. 2 is a schematic circuit diagram of a filter shaping circuit according to a preferred embodiment of the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1, the present embodiment provides a pressure bandage point location pressure measuring device, which includes a plurality of pressure sensors disposed at different point locations of a pressure bandage, a filter shaping circuit corresponding to the pressure sensors one by one, an MCU circuit, a battery, a voltage reducing circuit, a charge protection circuit, a USB interface circuit, an LCD circuit, a display, a FLASH circuit, and a switch circuit.

In fig. 1, four pressure sensors are shown as a pressure sensor 1, a pressure sensor 2, a pressure sensor 3 and a pressure sensor 4, respectively, where the pressure sensor 1 corresponds to the filter shaping circuit 1, the pressure sensor 2 corresponds to the filter shaping circuit 2, the pressure sensor 3 corresponds to the filter shaping circuit 3, and the pressure sensor 4 corresponds to the filter shaping circuit 4.

Pressure sensor 1 is connected with the MCU circuit electricity through filter shaping circuit 1, pressure sensor 2 is connected with the MCU circuit electricity through filter shaping circuit 2, pressure sensor 3 is connected with the MCU circuit electricity through filter shaping circuit 3, pressure sensor 4 is connected with the MCU circuit electricity through filter shaping circuit 4, the battery passes through the step-down circuit and is connected with the MCU circuit electricity, the battery passes through the protection circuit that charges and is connected with the MCU circuit electricity, the battery passes through USB interface circuit and is connected with the MCU circuit electricity, the MCU circuit passes through the LCD circuit and is connected through the connecting wire with the display, the MCU circuit is connected with FLASH circuit electricity, switch circuit and MCU circuit electricity are connected.

The pressure sensor is used for detecting pressure signals of corresponding point positions, the filtering and shaping circuit is used for filtering and shaping the pressure signals into analog voltage signals and transmitting the analog voltage signals to the MCU circuit, and the MCU circuit is used for obtaining corresponding pressure values based on the analog voltage signals, transmitting the obtained pressure values to the display through the LCD circuit for displaying and storing the pressure values to the FLASH circuit.

The voltage reduction circuit is used for reducing and stabilizing voltage signals of the voltage of the battery and transmitting the voltage signals to the MCU circuit.

The MCU circuit is used for controlling the USB interface circuit to charge the battery and controlling the charging protection circuit to charge and protect the battery.

The filter shaping circuit 1, the filter shaping circuit 2, the filter shaping circuit 3 and the filter shaping circuit 4 are the same, and as shown in fig. 2, the filter shaping circuit includes a first resistor R943, a capacitor C446, a second resistor R947, a third resistor R948, a fourth resistor R949 and an operational amplifier U42A.

One end of the pressure sensor is connected with 3.3V voltage, the other end is grounded through a first resistor R943, the other end of the pressure sensor is electrically connected with the negative input end of an operational amplifier U42A through a capacitor C446, the negative input end of the operational amplifier U42A is electrically connected with the output end of an operational amplifier U42A through a second resistor R947, the positive input end of the operational amplifier U42A is connected with 3.3V voltage through a third resistor R948 and is grounded through a fourth resistor R949, and the output end of the operational amplifier U42A is electrically connected with an AD sampling port of the MCU circuit.

For example: opening a display, selecting the number of pressure sensors according to the actual conditions of the length and the point position of the limb to be monitored, placing the pressure sensors at the position to be monitored, and adjusting the bandage applying strength according to the display of the pressure value; under the condition of teaching, purposeful exercise is carried out according to the pressure; in the clinical use condition, after the bandage is wound, the connecting wire and the pressure sensor are separated until the patient comes to the hospital again for a doctor, and the patient is taken out after the pressure bandage is removed.

According to the invention, when a nurse presses the pressure bandage, the nurse can monitor the pressure conditions of different point positions in the pressure bandage in a ready manner and display the pressure values through the display, so that the nurse can conveniently master the pressure conditions of different point positions when the nurse presses the pressure bandage. In addition, the monitoring of the pressure condition during bandage pressing can be carried out through the Bluetooth and APP ends.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.