TWI707705B - Early warning device for drip injection - Google Patents

Abstract

The present invention is a drip injection early warning device for medical purposes to monitor the supply and distribution of drips, such as distilled water, nutrients, drugs, physiological saline, blood or blood products and other fluids. The present invention uses two electrodes to be installed on the container bag wall , Sensing the capacitance formed by the distance between the two. When the amount of liquid decreases, the bag wall will compress inwardly to reduce the distance between the two electrodes due to atmospheric pressure. When the distance is too small, the capacitance becomes larger, an alarm will be issued to remind you to take care The personnel, based on this smart infusion monitor that detects weight and capacitance, monitors the change of the liquid in the container at any time, and prompts the medical care personnel in real time, so that the personnel can deal with it in real time, and prevent the patient from being injured by not injecting the liquid into the patient.

Description

Early warning device for drip injection

The present invention relates to an early-warning device for drip injection, in particular to an early-warning device that can monitor the liquid in the drip bag at any time.

Infusion devices are widely used for medical purposes to supply and distribute fluids such as distilled water, nutrients, drugs, physiological saline, blood or blood products. The common method of intravenous drip is to store the fluid supply in a drip bag or drip The bottle connects the flow tube to the fluid supply outlet, and delivers fluid to the patient through the tube through a needle inserted into the patient's body. By suspending the fluid supply container above the patient, the fluid can be delivered to the patient under pressure.

In recent years, biomedical testing systems have gradually received attention in medical institutions. However, patients often need to pay attention to the amount of liquid remaining in the drip at all times. When the infusion of Chinese medicinal liquid has been injected, the nursing, medical staff or family members have Too busy, falling asleep or negligent, causing blood reflux or air entering the blood vessels to cause bubble embolism, blocking blood flow to the blood vessels and hypoxia and necrosis, to avoid accidents caused by too busy becoming a serious safety concern for medical stations. In the automatic detection of whether the drip of the liquid is titrated and about to be dripped, the researcher uses the non-contact induction technology to change the traditional form of the hanging drip device. In addition to reminding the nursing staff, it can also let the nursing staff know where the drip needs to be replaced. Pay more attention and wait for the completion of the infusion. Let the nursing staff rest at ease, reduce the time and energy of the medical staff, and improve the efficiency of hospital operations and the quality of medical services.

Therefore, the present invention designs a drip injection early warning device for medical purposes to monitor the supply and distribution of drips, such as distilled water, nutrients, drugs, physiological saline, blood or blood products and other fluids. The present invention uses two electrodes to be installed in the container bag The wall senses the capacitance generated by the distance between the two. When the amount of liquid decreases, the bag wall will compress inwardly to reduce the distance between the two electrodes due to atmospheric pressure. When the distance is too small, the capacitance increases, and an alarm will be issued to remind you to take care The personnel, based on this smart infusion monitor that detects weight and capacitance, monitors the change of the liquid in the container at any time, and prompts the medical care personnel in real time, so that the personnel can deal with it in real time, and prevent the patient from being injured by not injecting the liquid into the patient.

One of the objects of the present invention is to provide an early warning device for drip injection, which uses two electrodes installed on the wall of the container bag to sense the distance between the two. When the amount of liquid decreases, the bag wall will compress and shrink the two electrodes due to atmospheric pressure. When the distance is too small, an alarm will be issued to remind caregivers.

An early warning device for drip injection, which is used to detect the decrease of dripping liquid and perform a preset alarm action. It includes two electrodes, which are respectively arranged on both sides of the drip bag and form a capacitor with a liquid in the drip bag. The volume reduction of the liquid is proportional to the capacitance value of the capacitance of the distance between the two electrodes; a processing unit electrically connected to the two electrodes, the processing unit generates a distance signal according to the capacitance value, when the distance When the signal is less than a minimum threshold value, an emergency signal is issued; and an alarm unit is electrically connected to the processing unit, and receives the emergency signal to issue an alarm.

The drip injection early-warning device according to claim 1, wherein a reduction in the volume of the liquid is inversely proportional to a distance between the two electrodes.

The intravenous injection early-warning device described in claim 1 further includes a power supply unit connected to the two electrodes, the processing unit, and the alarm unit to supply power required for its action.

The drip injection warning device according to claim 1, further comprising a weight sensing unit, which is arranged above the drip bag and connected to the processing unit. The weight sensing unit can detect the change in the weight of the liquid in the drip bag. Send weight signal.

The intravenous injection early-warning device according to claim 1, wherein the alarm unit emits at least one of sound, light, and vibration for the purpose of warning.

The following is a schematic diagram of the drip injection warning device of the present invention and a schematic diagram of the relationship between the present invention and dripping liquid based on Figures 1 to 2, respectively, to illustrate the embodiments of the present invention. This description is not intended to limit the implementation of the present invention, but is a kind of embodiment of the present invention.

Please refer to Fig. 1 and Fig. 2. As shown in Fig. 1, the drip injection warning device 10 of the present invention is used to detect the drop of drip fluid and perform a preset alarm action. It includes two electrodes 100 and one treatment Unit 200, an alarm unit 300.

Referring again to Figure 2, as shown in Figure 2, two electrodes 100 are respectively arranged on both sides of the drip bag and form a capacitor with a liquid 520 in the drip bag 500. The volume of the liquid decreases and the capacitor One of the capacitance values is proportional; the processing unit 200 is electrically connected to the two electrodes 100. The processing unit 200 generates a distance signal according to the capacitance value. When the distance signal is less than a minimum threshold value, an emergency signal is issued, and the alarm unit 300, which is electrically connected to the processing unit 200, and the alarm unit 300 can issue an alarm to notify the user.

Following the above, the present invention uses two electrodes installed on the wall of the drip bag to form a capacitor with the liquid 520 in the bag. According to the distance D1 between the two, when the amount of liquid decreases, the bag wall will compress inward due to atmospheric pressure and shrink The distance D1 between the bag wall and the two electrodes is too small to form a distance D2, and the capacitance value at this time is a minimum threshold value. When the minimum threshold value is reached, the alarm unit 300 will issue an alarm to remind the caregiver; The reduction of a volume of the liquid 520 is inversely proportional to the distance D1 between the two electrodes 200; the alarm unit 300 emits at least one of sound, light, and vibration for the purpose of warning.

In addition, the present invention further includes a power supply unit 600 which is electrically connected to the two electrodes 100, the processing unit 200 and the alarm unit 300 to supply the power required for its operation.

In addition, the present invention further includes a weight sensing unit 400 disposed above the drip bag 500 and electrically connected to the processing unit 200 and the power supply unit 600. The weight sensing unit 300 can detect the amount of dripping liquid 520 in the drip bag. The weight changes to send a weight signal.

In summary, the drip injection early warning device of the present invention monitors the change of the liquid in the container at any time based on this smart infusion monitor that detects weight and capacitance, and instantly reminds the medical care personnel so that they can deal with it immediately and avoid no injection The liquid reaches the patient and causes injury to the patient.

The above descriptions and descriptions are only descriptions of the preferred embodiments of the present invention. Those with general knowledge of this technology should make other modifications based on the scope of patent application defined below and the above descriptions, but these modifications should still be made. It is the spirit of the invention and within the scope of the rights of the invention.

10‧‧‧Infusion early warning device 100‧‧‧Electrode 200‧‧‧Processing unit 300‧‧‧Alarm unit 400‧‧‧Weight sensing unit 500‧‧‧Infusion bag 520‧‧‧Infusion liquid 600‧‧‧Power supply Unit D1‧‧‧Distance D2‧‧‧Distance

Figure 1 is a schematic diagram of the drip injection warning device of the present invention; Figure 2 is a schematic diagram of the relationship between the present invention and drip liquid; and Figure 3 is a schematic diagram of other embodiments of the present invention.

10‧‧‧Injection early warning device

100‧‧‧electrode

200‧‧‧Processing unit

300‧‧‧Alarm Unit

500‧‧‧Drip bag

520‧‧‧drops of liquid

Claims (4)

An early warning device for drip injection, used to detect the drop of dripping liquid and perform a preset alarm action, comprising: two electrodes, which are respectively arranged on both sides of a drip bag and form a capacitor with a liquid in the drip bag A volume of the liquid is reduced in proportion to a capacitance value of the capacitor; a processing unit is electrically connected to the two electrodes, and the volume of the liquid reduced is inversely proportional to a distance between the two electrodes, and the The distance between the two electrodes causes the capacitance value to change, the processing unit generates a distance signal according to the capacitance value, and when the distance corresponding to the distance signal is less than a minimum threshold value, an emergency signal is issued; and an alarm unit, It is electrically connected with the processing unit to receive the emergency signal to send out an alarm; wherein, when the volume of the liquid decreases and the volume increases, the distance between the two electrodes decreases and the capacitance value increases. The intravenous injection early-warning device described in claim 1 further includes a power supply unit connected to the two electrodes, the processing unit, and the alarm unit to supply power required for its action. The drip injection early-warning device according to claim 1, further comprising a weight sensing unit, which is arranged above the drip bag and connected to the processing unit, and the weight sensing unit detects the weight change of the liquid in the drip bag To send the weight signal. The intravenous injection early warning device according to claim 1, wherein the alarm unit emits one of a sound, a bright light, and a vibration for the purpose of warning.

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