CN108057138A - The monitoring device and method of blood dialysis solution use state - Google Patents

Abstract

The invention provides a monitoring device and method for the use state of hemodialysate, which includes a power supply, a load tray, a weight sensor, a central processing unit and an alarm device. The weight sensor and the alarm device are connected to the central processing unit respectively, and the weight sensor and the load The pallet is connected, and the weight sensor transmits the weight data of the items on the stage to the central processing unit. When the central processing unit detects that the weight measured by the weight sensor is less than the preset threshold, the light alarm device and the sound alarm device are activated and Send an alarm message. The present invention adds an automatic detection program for dialysate consumption on the basis of the original equipment, realizes early warning, and the early warning information is accurate and timely. Therefore, it has strong clinical practical value.

Description

Device and method for monitoring use status of hemodialysate

technical field

The invention relates to a control device and method for hemodialysis, in particular to monitoring equipment and a method for monitoring the use state of hemodialysis fluid.

Background technique

Hemodialysis (HD), referred to as hemodialysis, is one of the renal replacement therapies for patients with acute and chronic renal failure. In popular terms, it is also called kidney dialysis, which is a kind of blood purification technology. It uses the principle of semi-permeable membrane to remove various harmful and redundant metabolic wastes and excess electrolytes from the body through diffusion, so as to purify the blood and correct the water-electrolyte and acid-base balance. Hemodialysis is one of the safer, easier and widely used methods of blood purification.

Hemodialysis equipment includes hemodialysis machines, water treatment and dialyzers, etc., which together form a hemodialysis system. The hemodialysis solution generally includes liquid A and liquid B, which are acid liquid and alkali liquid respectively. The dialysate is pre-loaded into the dialysate bucket, and the suction pipe connected to the dialysis machine is inserted into the dialysate bucket during use, and the dialysate is pumped out into the dialysis machine.

Generally, one bucket of dialysate cannot be used up during the dialysis of one patient, and the unused dialysate can be used continuously by the second patient. However, in some cases, the liquid volume of one bucket of dialysate cannot fully meet the needs of two patients. Therefore, nurses need to pay attention to the amount of dialysate in the dialysate bucket. When the dialysate is almost used up, replace it with a new dialysate bucket with sufficient dialysate in time to avoid the dialyser still running and sucking after the dialysate is used up. fluid process, causing air to be drawn into the dialysis tubing. Although the existing hemodialysis machine equipment is equipped with an air monitoring system, the hemodialysis machine equipment often sends out an alarm to prompt replacement of the dialysis fluid until the dialysate is used up and bubbled. Since the air bubbles have been inhaled, the device needs to be stopped and the treatment interrupted when the dialysate is changed. And equipment alarm for a long time can cause the patient's panic.

Contents of the invention

In order to solve the above-mentioned problems, the present invention provides a monitoring device for monitoring the use state of hemodialysis fluid, including a power supply, a loading tray, a weight sensor, a central processing unit and an alarm device, and the weight sensor and the alarm device are connected with the central processing unit respectively. The weight sensor is connected to the loading tray, and the weight sensor transmits the weight data of the items on the loading platform to the central processing unit. When the central processing unit detects that the weight measured by the weight sensor is less than the preset threshold value, Start the alarm device to send an alarm message.

Further, the weight sensor is installed in the monitoring device, which is located under the loading tray and in contact with the loading tray.

The alarm device includes a light alarm device and an audio alarm device. Further, a groove is provided on the upper surface of the loading tray, and the light alarm device is embedded in the groove of the loading tray. Preferably, the light alarm device arranged in the loading tray is not higher than the supporting surface of the loading tray.

In order to further strengthen the control of dialysate use, the monitoring equipment also includes an infusion control device.

The present invention also provides a method for judging the use state of hemodialysate, comprising the following steps:

Provide monitoring equipment for the use status of the above-mentioned hemodialysis fluid, put the dialysate bucket containing the dialysate on the monitoring equipment; when the weight measured by the weight sensor is less than the preset threshold, the central processing unit sends an alarm command to the alarm device , start the alarm; the alarm device continues to send alarm information until the weight measured by the weight sensor is greater than the preset threshold, the central processing unit sends an instruction to close the alarm to the alarm device, and the alarm stops; or the alarm device is turned off artificially.

The present invention further provides a method for judging the use state of the hemodialysate, comprising the following steps: (1) providing the monitoring device for the use state of the hemodialysate as described above, and placing the dialysate bucket with the dialysate on the monitoring device (2) When the weight measured by the weight sensor is less than the preset threshold, the central processing unit sends an alarm command to the light alarm device, and the light alarm starts; if the light alarm is started, a new dialysate bucket is replaced, and the weight sensor When the measured weight is greater than the preset threshold, the central processing unit sends an instruction to turn off the alarm to the light alarm device, and the light alarm stops; (3) when the start time of the light alarm exceeds the preset time, the central processor sends an alarm to the sound The device sends out an alarm command, and the sound alarm is activated; if the sound alarm is activated, a new dialysate bucket is replaced, and when the weight measured by the weight sensor is greater than the preset threshold, the central processing unit sends a shutdown signal to the light alarm device and the sound alarm device. Alarm instruction, light alarm and sound alarm stop.

In a preferred solution, at the same time or after the sound alarm is issued in step (3), the central processing unit sends an instruction to the infusion control device, and the infusion control device starts to reduce the pumping speed of the infusion pump or directly shut down the infusion pump.

In a more preferred solution, the light alarm mode in step 2 is a multi-stage alarm mode, which is at least divided into an initial alarm, a second alarm, and an alarm requiring emergency treatment.

The present invention also provides a monitoring system for monitoring the use status of hemodialysis fluid, including monitoring equipment and a control program for monitoring the usage status of hemodialysis fluid. The monitoring equipment includes a power supply, a loading tray, a weight sensor, a central The processor and the alarm device, the weight sensor and the alarm device are respectively connected to the central processing unit, the weight sensor is connected to the loading tray, and the weight sensor transmits the weight data of the items on the loading platform to the central processing unit. When the weight measured by the weight sensor is less than the preset threshold, the alarm device is activated to send out an alarm message. The control program includes that when the weight measured by the weight sensor 2 is less than a preset threshold, the central processing unit 3 sends an alarm command to the light alarm device 5, and the light alarm is activated. After the light alarm is activated, when the weight measured by the weight sensor is greater than the preset threshold, the central processing unit sends an instruction to turn off the alarm to the light alarm device, and the light alarm stops. After the light alarm start time exceeds the preset time, the central processing unit sends an alarm instruction to the sound alarm device 6, and the sound alarm starts. After the sound alarm is activated, when the weight measured by the weight sensor is greater than the preset threshold, the central processing unit sends an instruction to turn off the alarm to the light alarm device and the sound alarm device, and the light alarm and sound alarm stop.

Further, the light alarm adopts a multi-stage alarm mode.

Furthermore, the light alarm is divided into multi-stage alarm modes such as the first alarm, the second alarm, and the alarm requiring emergency treatment, and corresponds to different light colors.

Furthermore, when the light alarm starts and the alarm lasts within 2 minutes, it belongs to the initial alarm segment, when the alarm lasts from 2 minutes to 5 minutes, it is the second alarm segment, and when the alarm lasts for more than 5 minutes, it is the emergency processing segment.

In a more specific design, the light color of the initial alarm section is green, the light color of the second alarm section is orange, and the light color of the section requiring emergency treatment is red.

Further, the sound alarm adopts a multi-segment alarm mode, and more specifically, it is divided into a moderate segment, a rapid segment or a sharp segment corresponding to different time periods.

The beneficial effect of the present invention is: it can effectively know the remaining amount of dialysate in the dialysate tank, and send accurate information to the nursing staff, and add an automatic detection program of dialysate use state on the basis of the original equipment, which can inform the doctors and nurses in advance Personnel, perform a fluid change. Realize early warning, accurate and timely warning information, and improve work efficiency. The light alarm and sound alarm are carried out in stages, which can eliminate the tension caused by the long-term sound alarm to the patient, make the patient's treatment more cooperative, and create a good working atmosphere. Therefore, it has strong clinical practical value.

Description of drawings

Fig. 1 is a schematic diagram of monitoring equipment for monitoring the use status of hemodialysate.

Figure 2 is an exploded schematic diagram of the monitoring equipment for monitoring the use status of hemodialysate

Fig. 3 is a diagram showing the use state of the monitoring equipment for monitoring the use state of the hemodialysate.

Fig. 4 is a schematic diagram of the control system of the monitoring equipment.

Fig. 5 is a parameter setting interface of the monitoring equipment for the use state of the hemodialysate.

Detailed ways

The monitoring equipment for monitoring the use status of hemodialysis fluid includes a loading tray 1 , a weight sensor 2 , a central processing unit 3 , an alarm device and a power supply 4 . The weight sensor and the alarm device are respectively connected with the central processing unit. The weight sensor transmits the weight data of the items on the stage to the central processor, and when the central processor detects that the weight measured by the weight sensor is less than a preset threshold, the alarm device is activated to send out an alarm message.

As shown in Figures 1 to 4 of the monitoring equipment, the loading tray 1 is arranged on the upper surface of the monitoring equipment, the weight sensor is installed in the monitoring equipment, and the weight sensor is located under the loading tray 1 and contacts with the loading tray 1 . The central processing unit is installed in the monitoring equipment.

The alarm device selects light alarm device, sound alarm device or their combination. As the monitoring equipment shown in FIGS. 1 to 4 , the alarm device includes a light alarm device 5 and an audio alarm device 6 . The light alarm device and the sound alarm device can be installed in any position where the monitoring equipment can make them play the role of alarm reminder. In a preferred design solution, a groove 11 is provided on the upper surface of the loading tray 1, and the light alarm device is embedded in the groove of the loading tray. In order to ensure that items (such as dialysate buckets) can be placed on the loading tray smoothly, the light alarm device arranged in the loading tray does not exceed the supporting surface of the loading tray. The dialysate bucket used now is transparent, and when the dialysate bucket is placed on the loading tray, the light alarm device embedded on the loading tray is just below the dialysate bucket. When the light shines brightly, the light can pass through the dialysate bucket to illuminate the dialysate in the bucket, so that the dialysate also reflects the color of the light, so that the nursing staff can more clearly notice the alarm message.

The light alarm device can be an LED light strip or any other device that can emit light. The sound alarm device can be a buzzer or any other sounding device. In a preferred design solution, the light color of the light alarm device may include multiple colors, for example, divided into three segments of green, yellow and red, corresponding to different alarm parameters. The sound alarm can also be divided into multi-segment rhythm alarm modes, for example, the alarm sound is moderate, rapid or sharp, etc., to correspond to different weight parameters respectively.

Various control thresholds or parameters can be fixedly set in the central processor of the monitoring equipment. Alternatively, the monitoring equipment may also include a parameter input device, and later parameter setting may be performed according to the actual volume specification of the dialysate barrel used, and the real-time weight may also be displayed online. The parameter input device shown in Figures 1 and 5 is a liquid crystal touch screen 7, and the touch screen 7 is connected with the central processing unit. , Divided into the initial alarm, the second alarm, the emergency alarm) start sound alarm, network alarm start mode, light alarm light color mode (such as single color, gradient color or multi-color) and so on.

Hemodialysis fluid generally includes liquid A and liquid B. Liquid A is used to adjust the ion concentration of human body fluids, mainly including sodium, potassium, calcium, magnesium, glucose and other components. Liquid B is used as a buffer to maintain the acid-base balance of body fluids, mainly including carbonic acid sodium hydrogen and other ingredients. Liquid A and liquid B need to be packed in different dialysate buckets. If they are not packed, chemical reactions will occur between the two to produce precipitation. Therefore in the embodiment shown in Fig. 1 and 4, monitoring equipment comprises two groups of loading trays 11, the first weight sensor 21, the second weight sensor 22 and warning devices (the first light warning device 51, the second light warning device 52 , the first sound alarm device 61 and the second sound alarm device 62), two groups of weight sensors and alarm devices are all connected with central processing unit 3. One or two sets of parameter input devices can be selected, and two sets of parameter systems include two sets of parameter systems for liquid A and liquid B respectively. When setting parameters, they can switch between the two sets of parameter systems. In another implementation, the monitoring equipment only includes a set of loading trays, a weight sensor, an alarm device and a set of parameter systems. During hemodialysis, two monitoring devices are used to place the dialysate bucket of liquid A and the dialysate bucket of liquid B respectively, and set the parameters respectively.

The monitoring equipment shown in FIG. 3 may also include an infusion control device 8, one end of the infusion control device is connected to the central processing unit, and the other end of the infusion control device is connected to an infusion pump 9 that controls the operation of the infusion pump. One end of the suction pipe 91 is inserted into the dialysate bucket, and the dialysate is pumped out of the dialysate bucket by the infusion pump and enters the dialysis machine. The infusion pump can be a peristaltic pump or the like. When the monitoring equipment sends out the light alarm and sound alarm information, and the nursing staff still does not change the dialysate bucket on the monitoring equipment, the central processing unit will send instructions to the infusion control device to start the infusion control device. After the infusion control device is activated, the pumping speed of the infusion pump can be reduced to reduce the rate of liquid reduction in the dialysate bucket, allowing more time to wait for the nursing staff to replace the new dialysate bucket before the dialysate is used up. Or directly shut down the operation of the infusion pump after the infusion control device is started, avoid inhaling a large amount of air, and wait for the nursing staff to replace a new dialysate bucket on standby.

The monitoring equipment can also include a portable alarm device 10, which is connected to the central processing unit 3 through wireless transmission, and the central processing unit can transmit alarm information to the portable alarm device. When the nurse leaves the dialysis machine or the patient who is undergoing dialysis for a short time, the nurse wears the portable alarm device 10 to know the usage status of the dialysate at any time, and can come back in time to increase the dialysate. This frees up the nursing staff to spend more time on other nursing tasks.

The method for judging the use state of the hemodialysate comprises the following steps: (1) providing the monitoring device for the use state of the hemodialysate as described above, and placing the dialysate bucket containing the dialysate on the monitor. (2) When the weight measured by the weight sensor 2 is less than the preset threshold (the preset threshold refers to that the remaining liquid in the dialysate bucket can no longer meet the dialysis dosage requirements, which will cause the suction pipe to suck air weight at the time), the central processing unit 3 sends an alarm command to the light alarm device 5, and the light alarm starts. If after the light alarm is activated, a new dialysate bucket is replaced (for example, the bucket is full of dialysate), and the weight measured by the weight sensor is greater than the preset threshold, the central processing unit sends an instruction to turn off the alarm to the light alarm device, The light alarm stops. (3) When the start time of the light alarm exceeds the preset time, the central processing unit sends an alarm instruction to the sound alarm device 6, and the sound alarm starts. If a new dialysate bucket is replaced after the sound alarm is activated, and the weight measured by the weight sensor is greater than the preset threshold, the central processing unit sends an instruction to close the alarm to the light alarm device and the sound alarm device, and the light alarm and sound alarm stop.

When the monitoring equipment also includes an infusion control device 8, at the same time or after the sound alarm is issued in step 3 of the above method, the central processing unit sends an instruction to the infusion control device to start the infusion control device to reduce the pumping speed of the infusion pump or directly shut down Stop the operation of the infusion pump.

In the further optimized design, according to the duration of the light alarm, the light alarm in step 2 is divided into multi-stage alarm modes such as the first alarm, the second alarm, and the alarm requiring emergency treatment, and they correspond to different light colors. For example, if the light alarm is started and the alarm lasts for 2 minutes, it belongs to the initial alarm segment. At this time, the light color is green. When the alarm lasts for 2 minutes to 5 minutes, it is the second alarm segment. At this time, the light color is orange. If the alarm lasts for more than 5 minutes, it is an emergency treatment segment, and the color of the light at this time is red. Nurses can judge the duration and urgency of the alarm according to the color of the light, so as to arrange the order in which different dialysate patients replace the dialysate buckets during the dialysis process, and give priority to replacing the dialysate tanks used by patients who have been alarmed for a long time. Similarly, the sound alarm in step 3 can also adopt a multi-stage alarm mode, for example, the alarm sound can be moderate, rapid or sharp, corresponding to different time periods.

An example of the clinical application of the monitoring device for the use state of the hemodialysate. Turn on the power switch 41 of the dialysis machine; ensure that the previous disinfection is completed, place the dialysate barrels containing dialysate A and B on the corresponding position of the monitoring equipment, connect the dialysate, select the fluid replacement program, and its self-test ; After the fluid replacement procedure is completed, enter the dialysis device and perform exhaust; correctly execute the doctor's order, input the dialysis data parameters; turn on the monitoring equipment for the use status of the dialysis fluid, and set the monitoring parameters according to the model of the dialysis fluid bucket; start hemodialysis treatment. After receiving the alarm information from the monitoring equipment during dialysis, the nursing staff will know the amount of liquid in the dialysate bucket in time and replace it with a new dialysate bucket. After the dialysis, the blood is returned, the residual liquid in the pipeline is discharged, and the cleaning and disinfection of the dialysis machine is completed. This monitoring device has very good clinical application value, and can well solve the problem that the remaining amount of dialysate in the dialysate tank cannot be monitored before, and realize early warning, and the early warning information is accurate and timely.

Claims (10)

1. The monitoring equipment of the state of use of the hemodialysate comprises a power supply and a loading tray, and is characterized in that it also includes a weight sensor, a central processing unit and an alarm device, the weight sensor and the alarm device are respectively connected to the central processing unit, and the weight sensor is connected to the loading tray. When the weight sensor detects that the weight measured by the weight sensor is less than the preset threshold value, the alarm device is activated to send out an alarm message. 2 . The monitoring device according to claim 1 , wherein the weight sensor is installed in the monitoring device, which is located under the loading tray and contacts with the loading tray. 3 . 3. The monitoring device according to claim 1, wherein the alarm device comprises a light alarm device and an audio alarm device. 4. The monitoring device according to claim 3, wherein a groove is formed on the upper surface of the loading tray, and the light alarm device is embedded in the groove of the loading tray. 5 . The monitoring device according to claim 4 , wherein the light alarm device installed in the loading tray does not exceed the supporting surface of the loading tray. 6 . 6. The monitoring device according to claim 1, further comprising an infusion control device. 7. The method for judging the use status of the hemodialysate, comprising the following steps: (1) Provide monitoring equipment for the use status of the hemodialysate described in one of claims 1 to 6, and place the dialysate bucket containing the dialysate on the monitoring equipment; (2) When the weight measured by the weight sensor is less than the preset threshold, the central processing unit sends an alarm command to the alarm device to start the alarm; (3) The alarm device continues to send alarm information until the weight measured by the weight sensor is greater than the preset threshold, and the central processing unit sends an instruction to close the alarm to the alarm device, and the alarm stops; or the alarm device is turned off artificially. 8. The method for judging the use state of the hemodialysate comprises the following steps: (1) providing the monitoring equipment for the use state of the hemodialysate as described above, and placing the dialysate barrel with the dialysate on the monitoring equipment; (2) ) When the weight measured by the weight sensor is less than the preset threshold, the central processing unit sends an alarm command to the light alarm device, and the light alarm starts; If the weight is greater than the preset threshold, the central processor sends an instruction to turn off the alarm to the light alarm device, and the light alarm stops; (3) when the light alarm start time exceeds the preset time, the central processor sends an alarm to the sound alarm device command, the sound alarm is activated; if the sound alarm is activated, a new dialysate bucket is replaced, and the weight measured by the weight sensor is greater than the preset threshold, the central processing unit sends an instruction to close the alarm to the light alarm device and the sound alarm device , the light alarm and sound alarm stop. 9. according to the method described in claim 8, it is characterized in that, while or after the step (3) sounds the alarm, the central processing unit sends an instruction to the infusion control device, and the infusion control device starts to reduce the pump liquid of the infusion pump. speed or shut down the infusion pump directly. 10. The method according to claim 8, wherein the light alarm in step 2 is a multi-stage alarm mode, which is at least divided into an initial alarm, a second alarm, and an alarm requiring emergency treatment.