CN109954186A - A smart medical remote monitoring system - Google Patents

Abstract

The invention provides an intelligent medical remote supervision system, which includes a host computer, a wireless communication unit, an alarm unit and a lower computer system. Lower computer unit, each lower computer unit includes a keyboard unit, a display unit, a droplet detection circuit, a liquid volume detection circuit, a motor drive circuit, a dripping speed control device and a control unit, a keyboard unit, a display unit, a droplet detection circuit, and a liquid droplet detection circuit. The quantity detection circuit, the motor drive circuit and the dripping speed control device are respectively connected to the control unit. The present invention has a reasonable design and is easy to use. The infrared sensing technology is used in the detection of the droplets, which avoids direct contact with the liquid medicine and achieves a safe and convenient operation. indicators, and the principle is simple, easy to operate.

Description

A smart medical remote monitoring system

technical field

The present invention relates to a smart medical remote supervision system, which relates to the field of smart medical technology, in particular to a smart medical remote supervision system.

Background technique

The traditional intravenous infusion process requires medical staff to have close contact with patients and control the infusion device. Medical staff need to be proficient in the process and details. For those medical staff who have just started work and have little practical experience, It is undoubtedly a difficult problem. Due to the influence of the external environment or the changes in the dripping speed caused by the patient's blood flow and other factors, not only are they difficult to grasp, but even some skilled workers are confused; and the patients are basically in a long-term infusion process. Comatose state, especially for those comatose patients. In such cases, special personnel are required to accompany them. Always pay attention to the dripping rate, remaining fluid volume and the patient's state during the infusion process. If such a situation occurs, accidents may occur, or even cause blood backflow, threatening the life of patients; in addition, for those patients with infectious diseases, although there are isolation and disinfection measures, it is still inevitable to have too much contact with patients There will be contagion accidents in the ground, which will bring unnecessary trouble.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a smart medical remote supervision system in order to solve the above deficiencies.

The purpose of this invention is to realize through the following technical solutions:

A smart medical remote supervision system, comprising a host computer, a wireless communication unit, an alarm unit and a lower computer system, the upper computer provides a wireless communication unit to connect the lower computer system, the wireless communication unit is connected to the alarm unit, and the lower computer system includes a plurality of lower computer units , each lower computer unit includes a keyboard unit, a display unit, a droplet detection circuit, a liquid volume detection circuit, a motor drive circuit, a dripping speed control device and a control unit, a keyboard unit, a display unit, a droplet detection circuit, and a liquid volume detection circuit. , The motor drive circuit and the drip speed control device are respectively connected to the control unit.

The upper computer includes a PC.

The control unit adopts MSP430F169 microcontroller chip.

The drip speed control device includes a track, a pulley, a positioning groove, an infusion tube, a lead screw and a stepper motor. The track is set in the positioning slot, the pulley is installed in the track, the lead screw is connected to the positioning slot and the stepping motor, and the infusion tube passes through the positioning slot. groove.

The present invention has the following beneficial effects:

The invention has reasonable design and convenient use, adopts infrared sensing technology in the detection of droplets, avoids direct contact with the medicinal liquid, and achieves the safety index, and has simple principle and convenient operation, and can receive the post-processed signal of the phototransistor. Sampling can also calculate the dripping speed, and the remaining liquid volume of the medicinal liquid can be obtained through the dripping speed, which has a good application prospect.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the keyboard unit circuit of the present invention;

Fig. 3 is the display unit circuit of the present invention;

4 is a droplet detection circuit of the present invention;

Fig. 5 is the liquid quantity detection circuit of the present invention;

Fig. 6 is the motor drive circuit of the present invention;

Fig. 7 is the drip speed control device of the present invention;

Fig. 8 is the alarm circuit of the present invention;

FIG. 9 is a circuit of a wireless communication unit of the present invention.

Detailed ways

Below in conjunction with accompanying drawing, the present invention is further described:

As shown in Figure 1, a smart medical remote supervision system includes a host computer 1, a wireless communication unit 2, an alarm unit 3 and a lower computer system 4. The upper computer 1 provides a wireless communication unit 2 to connect to the lower computer system 4. The wireless communication unit 2 is connected to the alarm unit 3, the lower computer system 4 includes a plurality of lower computer units 5, and each lower computer unit 5 includes a keyboard unit 7, a display unit 8, a liquid drop detection circuit 9, a liquid amount detection circuit 10, a motor drive circuit 11, The dripping speed control device 12, the control unit 19, the keyboard unit 7, the display unit 8, the droplet detection circuit 9, the liquid volume detection circuit 10, the motor drive circuit 11, and the dripping speed control device 12 are respectively connected to the control unit 19.

The upper computer includes a PC.

The control unit adopts MSP430F169 microcontroller chip.

The dripping speed control device includes a track 13, a pulley 14, a positioning groove 15, an infusion tube 16, a lead screw 17 and a stepping motor 18. The track 13 is set in the positioning groove 15, the pulley 14 is installed in the track 13, and the lead screw 17 is connected and positioned. The slot 15 and the stepping motor 18, the infusion tube 16 passes through the positioning slot 15.

The droplet detection module is used to detect whether there are droplets dripping from the Murphy tube and to measure the dropping speed of the droplets; the remaining liquid volume detection module is used to detect the remaining liquid volume of the infusion device; the keyboard processing module is used to set the predetermined droplet The display circuit module uses the display screen to display the predetermined dripping speed, actual dripping speed, the predetermined drug solution input volume, the remaining liquid volume and the patient's name; the motor drive module uses the motor to rotate to adjust the dripping speed.

Select MSP430 series microcontroller. TI's 16-bit ultra-low-power MSP430 series single-chip microcomputer can process data acquisition, keyboard input, data communication, etc. at the same time. It has the characteristics of high integration, stable performance, and convenient and efficient development environment.

The principle of drip detection: a light-emitting diode and a phototransistor are placed on both sides of the dropper. The light emitted by the light-emitting diode must pass through the dropper to illuminate the phototransistor. When there is a drop of medicine in the dropper, the light signal received by the phototransistor is weak due to the reflection and absorption of the light by the medicine. When the medicine drops, the light signal is stronger. After that, the phototransistor converts the light signal into a current signal, and then converts it into a voltage signal by using a single-chip microcomputer. By judging the strength of the voltage signal, it can be known whether there are droplets in the dropper.

Remaining liquid detection principle: When the liquid level of the liquid medicine is higher than the warning line, due to the reflection and absorption of the light by the liquid medicine, the light signal received by the phototransistor is weak, and the converted current or voltage signal is correspondingly weak; When the liquid level is below the warning line, the light attenuation is small, the phototransistor can receive a strong optical signal, and the electrical signal is correspondingly strong, and then the single-chip microcomputer processes the current or voltage signal and sends it to the upper position through wireless transmission. The machine alarm circuit issues an alarm.

As shown in Figure 2, the output of the preset row lines p4.4~P4.7 is low level, and the input state of the column lines P4.0~P4.3 is read. When a key is pressed, the data read in the column line is not all 1, so it is determined whether a key is pressed. The matrix keyboard uses the scanning method to identify the input information of the keys. The method is as follows: first, assume that the output of the 4 row lines is low level. If no key is pressed, the column line is weakly pulled up to Vcc, and the read data is all 1s. When a button is pressed, the button turns on the corresponding row and column, the data is read as 0, and the column where the button is located can be determined; then scan and output 0 signals on the row lines p4. The value of the column line, when the value of the column line is read as 0, the row where the button is located can be determined, and the position of the button is determined.

As shown in Figure 3, the 8-bit data bus DB0-DB7 of the LCD screen is connected to the P3.0~P3.7 ports of the MSP430F169 microcontroller, and the control terminals CS, RES, AOP, R/W, EP and P5.0~P5 .4 Connected.

As shown in Fig. 4, the dripping rate was measured at the Murphy's tube using the infrared detection method. The light-emitting diode and the phototransistor are placed on both sides of the Murphy tube. When the medicine in the Murphy tube drops, due to the reflection and absorption of the light by the medicine, the phototransistor is turned off, and the comparator outputs a high level; When no medicine is dropped, the phototransistor is turned on, and the comparator outputs a low level, so it can be determined whether there is a drop of medicine. When the generated pulse has no high and low level changes, it means that the infusion pipeline is blocked or the infusion is about to be completed.

As shown in Figure 5, the detection of the liquid volume still adopts the photoelectric sensing technology, which converts the optical signal received by the phototransistor into an electrical signal and transmits it to the wireless sending module, and then notifies the monitoring center.

As shown in Figure 6, using the four-phase eight-beat working mode, when the power supply sequence of the stepper motor is A-AB-B-BC-C-CD-D-DA, the motor rotates forward; When the sequence is A-AD-D-DC-C-CB-B-BA, the motor reverses.

As shown in Figure 7, the lead screw is moved forward or backward through the forward and reverse rotation of the stepping motor, and the lead screw is connected to both sides of the pulley, thereby driving the pulley to slide along the track of the positioning groove. When the pulley slides in the A direction When the liquid flow rate increases, the dripping rate increases accordingly; on the contrary, the dripping rate decreases.

As shown in Figure 8, when the remaining liquid is insufficient, the speaker will work to issue an alarm, and the LEDs will also light up at the same time, notifying the medical staff to come and deal with it.

As shown in Figure 9, the wireless sending module connects the ward liquid level alarm signal to the P0.0 port, and after CC2530 processing, the sending module sends it to the monitoring center to notify the medical staff.

Claims (4)

1. a kind of intelligent medical treatment remote monitoring system, including host computer, wireless communication unit, alarm unit and lower computer system, It is characterized by: host computer, which provides wireless communication unit, links lower computer system, wireless communication unit links alarm unit, the next Machine system includes multiple lower computer units, each lower computer unit include keyboard unit, display unit, drop detection circuit, Liquid inspection circuit, motor-drive circuit, drop velocity control device and control unit, keyboard unit, display unit, drop detection electricity Road, liquid inspection circuit, motor-drive circuit, drop velocity control device are separately connected control unit.

2. a kind of intelligent medical treatment remote monitoring system according to claim 1, it is characterised in that: the host computer includes PC machine.

3. a kind of intelligent medical treatment remote monitoring system according to claim 1, it is characterised in that: the control unit is adopted With MSP430F169 singlechip chip.

4. a kind of intelligent medical treatment remote monitoring system according to claim 1, it is characterised in that: the drop speed controls dress It sets including track, pulley, locating slot, perfusion tube, lead screw and stepper motor, track is arranged in locating slot, and pulley installation is in-orbit In road, lead screw connects locating slot and stepper motor, and perfusion tube passes through locating slot.