CN209771019U - Infusion alarm system and infusion bag - Google Patents

Abstract

The utility model provides an infusion alarm system and an infusion bag, comprising: a host computer is provided with a communication interface connected with a piezoelectric sensor; the piezoelectric sensor is used to detect the change of surface tension in the infusion bag to obtain a pressure change signal, And transmit the pressure change signal to the host; the host is used to process the pressure change signal to obtain the liquid level information of the infusion bag, so as to carry out when the liquid level of the infusion bag is lower than the preset liquid level. Alarm reminder; the host also includes a central processing module, which communicates with the monitoring platform to transmit alarm information to the monitoring platform. The utility model provides an infusion alarm system and an infusion bag, which enables the medical staff to replace the infusion bag for the corresponding patient as soon as possible, without the need for the medical staff to always pay attention to the liquid level of the patient's infusion bag, thereby improving the work efficiency of the medical staff.

Description

Infusion alarm system and infusion bag

technical field

The utility model relates to the technical field of infusion alarms, in particular to an infusion alarm system and an infusion bag.

Background technique

Infusion, also known as intravenous drip or hanging water, is a commonly used treatment method in medical treatment, and a large dose of injection is injected into the patient's body through intravenous drip. Generally, the infusion time is long, and the height of the infusion bag is required to be higher than the heart pressure of the human heart, so the infusion recipient needs to sit or lie down.

In the prior art, the person receiving the infusion, the nurse or relatives need to keep an eye on the remaining amount of the infusion bag, and call the medical staff before the remaining amount of the infusion bag is over. They often miss the time because of distraction, resulting in blood reflux during the infusion process. In other cases, the health of the infused person is endangered, and even life safety is endangered when serious, and the user experience is poor.

Utility model content

In view of this, the utility model provides an infusion alarm system and an infusion bag, so that the medical staff can replace the infusion bag for the corresponding patient as soon as possible, without the need for the medical staff to always pay attention to the liquid level of the patient's infusion bag, and improve the safety of the medical staff. work efficiency.

The utility model provides an infusion alarm system. The infusion alarm system comprises: a host, on which a communication interface connected with a piezoelectric sensor is arranged; the piezoelectric sensor is used to detect the change of the surface tension in the infusion bag to obtain change signal, and transmit the pressure change signal to the host; the host is used to process the pressure change signal to obtain the liquid level information of the infusion bag, so that when the liquid level of the infusion bag is lower than the preset liquid Alarm reminder when in position;

The host also includes a central processing module, which communicates with the monitoring platform to transmit alarm information to the monitoring platform.

Specifically, a piezoelectric sensor is also included, the piezoelectric sensor is connected to the communication interface, and the piezoelectric sensor is arranged on the outer surface of the infusion bag by sticking or integrating.

Specifically, the piezoelectric sensor is attached to the lower part of the outer surface of the infusion bag, and the signal output end of the piezoelectric sensor is connected to the communication interface through a connecting line.

Specifically, the piezoelectric sensor is integrated in the lower part of the outer surface of the infusion bag, and the signal output end of the piezoelectric sensor is arranged on the top of the hanging ring of the infusion bag, and is connected to the host The communication interface in the infusion bag is directly connected, and the wire between the signal output end of the piezoelectric sensor and the piezoelectric sensor is arranged in the interlayer of the infusion bag.

Specifically, the number of the piezoelectric sensors is two groups, the piezoelectric sensors of the two groups are the first piezoelectric sensor and the second piezoelectric sensor, the part of the first piezoelectric sensor is arranged along the vertical direction, and the second piezoelectric sensor The electrical sensor is arranged along the transverse direction; a part of the first piezoelectric sensor along the length direction is integrated on the hard part in the bottom of the infusion bag, and another part of the first piezoelectric sensor along the length direction is integrated on the hard part of the bottom of the infusion bag. The outer pia of the lower part of the infusion bag; the second piezoelectric sensor is integrated in the lateral direction above the top of the first piezoelectric sensor in the infusion bag.

Specifically, the second piezoelectric sensor has multiple channels, and multiple channels of the second piezoelectric sensor are integrated in parallel above the top of the first piezoelectric sensor in the infusion bag.

Specifically, a part of the piezoelectric sensor along the length direction is arranged on the hard part in the bottom of the infusion bag, and another part of the piezoelectric sensor along the length direction is arranged on the soft outer part of the lower part of the infusion bag. on the membrane.

Specifically, the piezoelectric sensor is a piezoresistive elliptical piezoelectric sensor or a piezoresistive wire.

The utility model also provides an infusion bag, including a piezoelectric sensor used to obtain the surface tension in the infusion bag, the piezoelectric sensor is arranged on the surface of the infusion bag, and the piezoelectric sensor is arranged on the surface of the infusion bag by pasting or integration. The outer surface of the infusion bag mentioned above.

Specifically, the piezoelectric sensor is used to detect the change of the surface tension of the infusion bag to obtain a pressure change signal, and transmit the pressure change signal to the host connected to the piezoelectric sensor; The pressure change signal is processed to obtain the liquid level information of the infusion bag, so as to give an alarm reminder when the liquid level of the infusion bag is lower than the preset liquid level.

Specifically, the piezoelectric sensor is integrated in the lower part of the outer surface of the infusion bag, and the signal output end of the piezoelectric sensor is arranged on the top of the hanging ring of the infusion bag, and is used to communicate with the The communication interface in the host computer is connected, and the wire between the signal output end of the piezoelectric sensor and the piezoelectric sensor is arranged in the interlayer of the infusion bag.

Specifically, the number of the piezoelectric sensors is two groups, the piezoelectric sensors of the two groups are the first piezoelectric sensor and the second piezoelectric sensor, the part of the first piezoelectric sensor is arranged along the vertical direction, and the second piezoelectric sensor The electrical sensor is arranged along the transverse direction; a part of the first piezoelectric sensor along the length direction is integrated on the hard part in the bottom of the infusion bag, and another part of the first piezoelectric sensor along the length direction is integrated on the hard part of the bottom of the infusion bag. The outer pia of the lower part of the infusion bag; the second piezoelectric sensor is integrated in the lateral direction above the top of the first piezoelectric sensor in the infusion bag.

Specifically, the second piezoelectric sensor has multiple channels, and multiple channels of the second piezoelectric sensor are integrated in parallel above the top of the first piezoelectric sensor in the infusion bag.

Specifically, one part of the piezoelectric sensor along the length direction is arranged on the hard part in the bottom of the infusion bag, and the other part of the piezoelectric sensor along the length direction is arranged on the lower part of the infusion bag. On the outer pia.

Specifically, the infusion alarm system and the infusion bag provided in this embodiment are provided with a communication interface connected to the piezoelectric sensor on the host computer, and the piezoelectric sensor is used to detect the change of the surface tension in the infusion bag to obtain a pressure change signal, and the The pressure change signal is transmitted to the host, and the host is used to process the pressure change signal to obtain the liquid level information of the infusion bag, so as to give an alarm when the liquid level of the infusion bag is lower than the preset liquid level, and the central processing module in the host and The monitoring platform is connected by communication to transmit the alarm information to the monitoring platform, so that the medical staff can replace the infusion bag for the corresponding patient as soon as possible, without the need for the medical staff to always pay attention to the liquid level status of the patient's infusion bag, and improve the work efficiency of the medical staff.

The above description is only an overview of the technical solutions of the present utility model. In order to better understand the technical means of the present utility model, it can be implemented according to the contents of the description, and in order to make the above-mentioned and other purposes, features and advantages of the present utility model better It is obvious and easy to understand. The preferred embodiments are specifically cited below, together with the accompanying drawings, and detailed descriptions are as follows.

Description of drawings

Fig. 1 is the structural block diagram of the transfusion alarm system of the first embodiment of the present invention;

Fig. 2 is the structural block diagram of the transfusion alarm system of the second embodiment of the present invention;

Fig. 3 is a schematic structural diagram of an infusion alarm system according to a third embodiment of the present invention;

Fig. 4 is a schematic diagram of the top view of the infusion bag in Fig. 3 when it is filled with medicinal liquid;

Fig. 5 is a schematic diagram of the top view of the transfusion bag in Fig. 3 when the infusion is completed;

6 is a schematic structural diagram of an infusion alarm system according to a fourth embodiment of the present invention;

Fig. 7 is a schematic structural diagram of an infusion alarm system according to a fifth embodiment of the present invention;

Fig. 8 is a schematic structural diagram of an infusion alarm system according to the sixth embodiment of the present invention;

Fig. 9 is a structural schematic diagram of the piezoelectric sensor in the infusion alarm system;

Fig. 10 is a structural block diagram of an infusion bag according to a seventh embodiment of the present invention;

FIG. 11 is a structural block diagram of the connection between the piezoelectric sensor and the host in FIG. 10 .

Detailed ways

In order to further explain the technical means and effects of the utility model to achieve the intended purpose of the utility model, the utility model will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

Fig. 1 is a structural block diagram of an infusion alarm system 100 according to the first embodiment of the present invention. As shown in FIG. 1 , the infusion alarm system 100 of this embodiment includes: a host computer 110 . A communication interface connected to the piezoelectric sensor is provided on the host 110 .

Further, in one embodiment, the infusion alarm system 100 further includes a piezoelectric sensor 120 . The piezoelectric sensor 120 is connected to the communication interface of the host 110 . Specifically, the host 110 is electrically connected to the piezoelectric sensor 120, and calculates the surface tension of the infusion bag according to the resistance of the piezoelectric sensor, so as to receive the pressure change signal corresponding to the surface tension in the infusion bag collected by the piezoelectric sensor 120.

Specifically, in one embodiment, the host 110 may be, but not limited to, hung on an infusion stand. For example, in other embodiments, the host 110 may also be directly integrated on an infusion stand. Specifically, in this embodiment, the piezoelectric sensor 120 is used as a passive device. Specifically, in one embodiment, the piezoelectric sensor 120 can be pasted on the outer surface of the infusion bag in the form of a patch, for example, by double-sided Glue sticks the piezoelectric sensor 120 on the lower part of the outer surface of the infusion bag. Specifically, in another embodiment, the piezoelectric sensor 120 may also be directly integrated on the outer surface of the infusion bag.

Specifically, in an embodiment, the host computer 110 and the piezoelectric sensor 120 are connected in a communication manner by wires. Specifically, the host 110 judges whether the infusion of the current infusion bag of the corresponding patient is over by calculating the pressure change signal corresponding to the surface tension transmitted by the piezoelectric sensor 120 .

Specifically, in an embodiment, the host computer further includes a central processing module. The central processing module communicates with the monitoring platform to transmit the alarm information to the monitoring platform.

Please refer to FIG. 2 together. FIG. 2 is a structural block diagram of an infusion alarm system 100 according to a second embodiment of the present invention. As shown in FIG. 1 and FIG. 2 , the infusion alarm system 100 provided in this embodiment further includes a monitoring platform 130 , and the host computer 110 is also connected to the monitoring platform 130 by communication.

Specifically, in one embodiment, the piezoelectric sensor 120 is used to detect the change of the surface tension in the infusion bag to obtain a corresponding pressure change signal, and transmit the pressure change signal to the host 110 . The host 110 is used to process the pressure change signal to obtain the liquid level information of the infusion bag hung on the hook, so as to give an alarm reminder when the liquid level of the infusion bag is lower than the preset liquid level, and send the liquid level information to the monitor Platform 130. The monitoring platform 130 is used to display the liquid level information, and give an alarm when the liquid level of the corresponding infusion bag is lower than the preset liquid level, so that the medical staff can replace the infusion bag for the corresponding patient as soon as possible, without the need for the medical staff to pay attention all the time The liquid level status of the patient's infusion bag improves the work efficiency of medical staff.

Specifically, in one embodiment, the host 110 includes a central processing module 111 , a power module 112 and an alarm module 114 . Specifically, the central processing module 111 is connected to the power module 112 and the alarm module 114 respectively. The central processing module 111 is also communicatively connected with the monitoring platform 130 .

Further, in one embodiment, the host 110 also includes a peripheral interface module 113 and an Ethernet interface 115, the central processing module 111 is connected to the peripheral interface module 113, and the peripheral interface module 113 is also respectively connected to the alarm module 114, the Ethernet interface 115 and the alarm module 114. The communication interface is connected, and the Ethernet interface 115 is also connected with the monitoring platform 130 for communication.

Further, in one embodiment, the host 110 also includes a wireless module 116, which is connected to the central processing module 111 in communication, and the wireless module 116 is also connected to the monitoring platform 130 through WIFI communication, Bluetooth communication or NB-IoT communication.

Specifically, in one embodiment, the central processing module 111 is used to drive the peripheral interface module 113, and obtain the pressure change data detected by the piezoelectric sensor 120 to analyze the pressure change data to obtain the liquid level information of the infusion bag, and according to the liquid level The bit information drives the alarm module 114 to issue sound and light reminders, and at the same time transmits the alarm information to the monitoring platform 130 of the hospital through the network transmission protocol, so that the medical staff can obtain the liquid level information of the corresponding patient's infusion bag at the first time.

Specifically, in one embodiment, the power module 112 may, but is not limited to, use a built-in battery. Power is supplied to each module in the host 110 .

Specifically, in one embodiment, the peripheral interface module 113 is used to drive the piezoelectric sensor 120 and receive the voltage change signal transmitted by the piezoelectric sensor 120 . The peripheral interface module 113 is also used to connect the Ethernet interface 115 to transmit the alarm information to the monitoring platform 130 of the hospital through the Ethernet, so that the medical staff can obtain the liquid level information of the corresponding patient's infusion bag at the first time.

Specifically, in one embodiment, a pluggable interface is used between the host 110 and the piezoelectric sensor 120, and the interface is preferably a magnetic material. When the medical personnel place the host 110 and the piezoelectric sensor 120 in the correct direction, the host 110 and the piezoelectric sensor The interface between the sensors 120 is normally closed. However, when the placement directions of the host 110 and the piezoelectric sensor 120 are wrong, the interface cannot be closed normally.

Specifically, in one embodiment, the alarm module 114 includes at least a buzzer or an LED warning light. Specifically, in this embodiment, the alarm module 114 includes both a buzzer and an LED warning light. When the corresponding alarm module 114 will send out a sound and light reminder to remind the patient and the medical staff to change the corresponding infusion bag in time.

Specifically, in an embodiment, the wireless module 116 is used to transmit the alarm information to the monitoring platform 130 through a wireless connection in a hospital that supports wireless transmission.

Specifically, in one embodiment, the piezoelectric sensor 120 is a piezoresistive sensor, and the shape of the piezoelectric sensor 120 can be, but not limited to, an ellipse. For example, the shape of the piezoelectric sensor 120 can also be set in the shape of a resistance wire. Specifically, in one embodiment, the piezoelectric sensor 120 can be directly integrated in the interlayer of the infusion bag, for example, in other embodiments, the piezoelectric sensor 120 can also be attached to the outer surface of the infusion bag as an independent device, so that The piezoelectric sensor 120 can be reused to save cost.

Specifically, in one embodiment, a part of the piezoelectric sensor 120 along the length direction is arranged on the hard part in the bottom of the infusion bag, and another part of the piezoelectric sensor 120 along the length direction is arranged on the lower part of the infusion bag. On the outer pia, but not limited thereto, for example, in other embodiments, the piezoelectric sensor 120 can also be arranged horizontally on the lower part of the infusion bag.

Please also refer to FIG. 3 , which is a schematic structural diagram of an infusion alarm system 100 according to a third embodiment of the present invention. As shown in FIGS. 1 to 3 , specifically, in this embodiment, the infusion alarm system 100 includes a host 110 , a connecting wire 150 and a piezoelectric sensor 120 that can be pasted on the outer surface of an infusion bag 140 .

Specifically, in one embodiment, the lower part of the host 110 is provided with a hook 117, one end of the hook 117 is fixedly connected to the lower end surface of the host 110, and the other end of the hook 117 is set close to the lower end surface of the host 110 and connected to the lower end of the host 110. A notch 118 is formed on the end surface to facilitate hanging the infusion bag 140 on the hook 117 . Specifically, the lower part of the host 110 is further provided with a communication interface 152 , and the communication interface 152 is communicatively connected with the piezoelectric sensor 120 .

Specifically, in one embodiment, the connection wire 150 is composed of a male buckle 151 at both ends and a wire (not shown in the figure).

Specifically, in one embodiment, the piezoelectric sensor 120 may be, but not limited to, a piezoresistive elliptical piezoelectric sensor 121 , a wire 122 and a signal output terminal 123 . Specifically, the wire 122 electrically connects the signal output terminal 123 to the piezoresistive elliptical piezoelectric sensor 121 . The signal output terminal 123 of the piezoelectric sensor 120 is communicatively connected with the communication interface 152 of the host computer 110 through the connection line 150 .

Specifically, in one embodiment, the piezoelectric sensor 120 is arranged on the infusion bag 140 to detect the pressure change signal corresponding to the surface tension of the infusion bag 140 to obtain the pressure change signal, and transmit the pressure change signal to the host 110 . The host 110 is used to process the pressure change signal to obtain the liquid level information of the infusion bag 140 hung on the hook 117, so as to give an alarm when the liquid level of the infusion bag 140 is lower than the preset liquid level.

Specifically, in an embodiment, the piezoelectric sensor 120 is disposed on the lower part of the outer surface of the infusion bag 140 by sticking or integrating.

Specifically, in one embodiment, when the piezoelectric sensor 120 is attached to the lower portion of the outer surface of the infusion bag 140 , for example, the piezoelectric sensor 120 is pasted near the lower portion of the infusion bag 140 . Specifically, the signal output terminal 123 of the piezoelectric sensor 120 is disposed close to the piezoelectric sensor 120 , and the signal output terminal 123 is connected to the communication interface 152 through the connection line 150 .

Specifically, in one embodiment, the piezoelectric sensor 120 can be customized as a flexible sticker, which is pasted on the outer wall of the lower outlet tube 142 of the infusion bag 140 or directly on the outer wall of the infusion bag 140 by means of a ring sticker, compatible with existing infusion The bag 140 can realize the intelligent monitoring of the infusion process. For example, medical personnel can arrange multi-channel piezoelectric sensors 120 on the outer surface of the infusion bag 140 and the lower outlet tube 142 of the infusion bag 140 to monitor the infusion process and give an early warning of the end of the infusion, which has high stability and reliability and does not require medical care. The personnel always pay attention to the liquid level status of the infusion bag 140 of the patient, so as to improve the work efficiency of the medical personnel.

Please refer to FIG. 4 and FIG. 5 together. FIG. 4 is a schematic structural view of the top view of the infusion bag 140 in FIG. 3 when it is filled with medicinal liquid, and FIG. 5 is a top view of the infusion bag 140 in FIG. 3 when the infusion is completed. Schematic. As shown in Figures 1 to 5, specifically, before the infusion starts, the infusion bag 140 is filled with medicinal liquid, and the medicinal liquid exerts outward pressure on the wall of the infusion bag 140, and the piezoelectric sensor 120 presents a convex shape; , the bag arms on both sides of the infusion gradually fit together, the piezoelectric sensor 120 gradually returns to flatness, and the detected pressure value becomes smaller. When the pressure is lower than the preset threshold, it is determined that the infusion is over.

Specifically, in one embodiment, during the use of the infusion alarm, the medical personnel paste the piezoelectric sensor 120 on the outer surface of the infusion bag 140, and make the piezoelectric sensor 120 close to the lower outlet tube 142 of the infusion bag 140. At one end, the infusion bag 140 is hung on the hook 117 of the host 110 at the same time, and the piezoelectric sensor 120 is electrically connected to the host 110 with a connecting wire 150 . Specifically, at the beginning of the infusion, the infusion bag 140 is filled with liquid medicine, and the outer surface of the infusion bag 140 protrudes (as shown in FIG. 4 ). The resistance of the electrical sensor 120 changes. For example, when the material property of the piezoelectric sensor 120 is that the pressure is proportional to the resistance value, the resistance of the piezoelectric sensor 120 increases when the pressure increases, and vice versa.

Specifically, in one embodiment, when the infusion is finished (as shown in FIG. 5 ), the infusion bag 140 is in a flat state, the piezoelectric sensor 120 is in a flat state, and the resistance value of the piezoelectric sensor 120 is lower than a preset resistance value. . Specifically, when the host 110 detects that the resistance of the piezoelectric sensor 120 is lower than the preset resistance, that is, when the liquid level of the infusion bag 140 is lower than the preset liquid level, it sends an alarm message to the alarm module 114 to control the alarm module 114 An audible and visual alarm is issued, and the alarm information is sent to the monitoring platform 130 through a wireless network or a wired network, so that the medical staff can obtain the liquid level information of the corresponding patient's infusion bag 140 at the first time.

Please refer to FIG. 6 together. FIG. 6 is a schematic structural diagram of an infusion alarm system 100 according to a fourth embodiment of the present invention. As shown in FIGS. 1 to 6 , specifically, in this embodiment, the infusion alarm system 100 includes a host 110 and a piezoelectric sensor 120 integrated on an infusion bag 140 .

Specifically, in one embodiment, the host 110 includes a hanging ring 119 connected to the infusion stand, a hook 117 connected to the infusion bag 140, and a communication interface 152 electrically connected to the piezoelectric sensor 120, wherein the hook 117 has a gap 118, it is convenient to hang up the infusion bag 140. Specifically, in one embodiment, both the communication interface 152 of the host computer 110 and the signal output terminal 123 of the piezoelectric sensor 120 can use magnetic materials to ensure easy operability and stability of the connection.

Specifically, in one embodiment, the infusion bag 140 integrated with the piezoelectric sensor 120 includes an infusion bag hanging ring 141 , a lower outlet tube 142 , a wire 122 , an infusion bag end interface 124 and a piezoresistive elliptical piezoelectric sensor 121 . Specifically, in one embodiment, the wire 122 is directly laid on the interlayer of the infusion bag 140 , and the end interface 124 of the infusion bag is arranged on the hanging ring 141 of the infusion bag. Specifically, in one embodiment, the signal output end 123 of the piezoelectric sensor 120 is the infusion bag end interface 124, which is preferably made of magnetic material. During use, the infusion bag end interface 124 is hung on the communication interface 153 of the host computer 110 to realize 110 is electrically connected to the piezoelectric sensor 120. The piezoresistive elliptical piezoelectric sensor 121 is electrically connected to the port interface 124 of the infusion bag through the wire 122 arranged in the lining of the infusion bag 140 , and then transmits the pressure change signal to the host 110 .

Specifically, in this embodiment, the resistance of the piezoelectric sensor 120 is horizontally integrated in the lower part of the infusion bag 140 along the length direction, and is arranged close to the bottom of the infusion bag 140 .

Specifically, in one embodiment, when the piezoelectric sensor 120 is integrated in the lower part of the outer surface of the infusion bag 140, the signal output terminal 123 of the piezoelectric sensor 120 is arranged on the top of the hanging ring 119 of the infusion bag 140 , and directly connected to the communication interface 153 in the host 110 , and the wire 122 between the signal output terminal 123 of the piezoelectric sensor 120 and the piezoelectric sensor 120 is set in the interlayer of the infusion bag 140 .

Specifically, in one embodiment, during the use of the infusion alarm, hang the infusion bag 140 integrated with the piezoelectric sensor 120 on the hook 117 of the host 110, and ensure that the communication interface 153 of the host 110 and the infusion bag end interface 124 Electrical connections. Specifically, at the beginning of the infusion, the infusion bag 140 is filled with liquid medicine, and the outer surface of the infusion bag 140 protrudes (as shown in FIG. 4 ). The resistance of the electrical sensor 120 changes. For example, when the material property of the piezoelectric sensor 120 is that the pressure is proportional to the resistance value, the resistance of the piezoelectric sensor 120 increases when the pressure increases, and vice versa.

Specifically, in one embodiment, when the infusion is finished (as shown in FIG. 5 ), the infusion bag 140 is in a flat state, the piezoelectric sensor 120 is in a flat state, and the resistance value of the piezoelectric sensor 120 is lower than a preset resistance value. . Specifically, when the host 110 detects that the resistance of the piezoelectric sensor 120 is lower than the preset resistance, that is, when the liquid level of the infusion bag 140 is lower than the preset liquid level, it sends an alarm message to the alarm module 114 to control the alarm module 114 An audible and visual alarm is issued, and the alarm information is sent to the monitoring platform 130 through a wireless network or a wired network, so that the medical staff can obtain the liquid level information of the corresponding patient's infusion bag 140 at the first time.

Please also refer to FIG. 7 , which is a schematic structural diagram of an infusion alarm system 100 according to a fifth embodiment of the present invention. As shown in FIG. 6 and FIG. 7 , the difference between the infusion alarm system 100 provided in this embodiment and the infusion alarm system 100 provided in the fourth embodiment lies in the integration position and direction of the piezoelectric sensor 120 in the infusion bag 140 . Specifically, in one embodiment, a part of the piezoelectric sensor 120 along the length direction is integrated on the hard part at the bottom of the infusion bag 140, and another part of the piezoelectric sensor 120 along the length direction is integrated on the lower part of the infusion bag 140. On the outer pia.

Specifically, in one embodiment, the piezoresistive elliptical piezoelectric sensor 121 is arranged on the inner lining of the infusion bag 140 and located at the lower edge of the infusion bag 140, and half of the piezoresistive elliptical piezoelectric sensor 121 is embedded in the hard part of the infusion bag 140. , and the other half is embedded in the outer pia of the infusion bag 140 . Specifically, the piezoresistive elliptical piezoelectric sensor 121 is electrically connected to the interface 124 of the infusion bag end through a wire 122 . Specifically, half of the piezoresistive elliptical piezoelectric sensor 121 is embedded in the hard part of the infusion bag 140 to play a fixed role, while the other half of the piezoresistive elliptical piezoelectric sensor 121 is embedded in the soft membrane part, so that the infusion In the process, the bending changes at the soft and hard joints of the infusion bag 140 are more obvious. For example, the initial state of the infusion bag 140 before the infusion starts, and the degree of bending is the largest. A piezoresistive elliptical piezoelectric sensor 121 is arranged at the bottom of the infusion bag 140, which can accurately detect the end of the infusion in the infusion bag 140 and improve the accuracy of the infusion alarm.

Please also refer to FIG. 8 , which is a schematic structural diagram of an infusion alarm system 100 according to a sixth embodiment of the present invention. As shown in FIG. 7 and FIG. 8 , the difference between the infusion alarm system 100 provided in this embodiment and the infusion alarm system 100 provided in the fourth embodiment is that the number of piezoelectric sensors 120 is two groups.

Specifically, in one embodiment, the two groups of piezoelectric sensors 120 are the first piezoelectric sensor 125 and the second piezoelectric sensor 126, the part of the first piezoelectric sensor 125 is arranged along the vertical direction, and the second piezoelectric sensor 126 Set in landscape orientation.

Specifically, in one embodiment, a part of the first piezoelectric sensor 125 along the length direction is integrated on the hard part in the bottom of the infusion bag 140, and another part of the first piezoelectric sensor 125 along the length direction is integrated on the hard part of the infusion bag 140. 140 on the lower part of the pia mater.

Specifically, in one embodiment, the second piezoelectric sensor 126 is integrated above the top of the first piezoelectric sensor 125 in the infusion bag 140 along the lateral direction. Specifically, there are multiple second piezoelectric sensors 126 , and the multiple second piezoelectric sensors 126 are integrated in parallel above the top of the first piezoelectric sensor 125 in the infusion bag 140 . For example, the second piezoelectric sensor 126 shown in FIG. 8 includes three circuits. Specifically, the distance between the second piezoelectric sensors 126 in the three circuits can be set in an incremental manner, but it is not limited thereto. The bottom of the bag 140 is provided with denser second piezoelectric sensors 126 to improve detection accuracy.

Specifically, in one embodiment, the piezoelectric sensor 120 is integrated on the lower liquid tube of the infusion bag 140, and whether the infusion is completed is detected by the tension change on the surface of the liquid infusion bag 140. The piezoelectric sensor 120 is low in cost and can It is directly integrated with the infusion bag 140, and intelligent monitoring of the infusion process can be realized without additional operations by medical staff.

Specifically, in one embodiment, both the first piezoelectric sensor 125 and the second piezoelectric sensor 126 can be configured as piezoresistive elliptical piezoelectric sensors 121, but it is not limited thereto. For example, in other embodiments, the first The piezoelectric sensor 125 and the second piezoelectric sensor 126 can also both be set to piezoresistive wires 127 (please refer to FIG. 9 ), or the first piezoelectric sensor 125 and the second piezoelectric sensor 126 can also be set to piezoresistive ellipse A piezoelectric sensor 121 and/or a piezoresistive wire 127 .

Please also refer to FIG. 9 , which is a schematic structural diagram of the piezoelectric sensor 120 in the infusion alarm system 100 . As shown in FIGS. 1 to 9 , the piezoelectric sensor 120 may be, but not limited to, configured as a piezoresistive wire 127 . For example, in other embodiments, the piezoelectric sensor 120 may also be configured as a piezoresistive elliptical piezoelectric sensor 121 .

Fig. 10 is a structural block diagram of an infusion bag 200 according to the seventh embodiment of the present invention. As shown in FIG. 10 , the infusion bag 200 provided in this embodiment includes a piezoelectric sensor 220 for obtaining surface tension in the infusion bag 200 . Specifically, in one embodiment, the piezoelectric sensor 220 is disposed on the surface of the infusion bag 200 . Specifically, in one embodiment, the piezoelectric sensor is arranged on the outer surface of the infusion bag by sticking or integrating.

Specifically, in one embodiment, a part of the piezoelectric sensor 220 along the length direction is integrated on the hard part at the bottom of the infusion bag 200, and another part of the piezoelectric sensor 220 along the length direction is integrated on the lower part of the infusion bag 200. On the outer pia, but not limited thereto, for example, in other embodiments, the pressure sensor can also be arranged on the lower part of the infusion bag 200 along the horizontal direction.

Please also refer to FIG. 11 , which is a structural block diagram of the connection between the piezoelectric sensor 220 and the host in FIG. 10 . As shown in FIG. 10 to FIG. 11 , in this embodiment, the piezoelectric sensor 220 is communicatively connected with the host 240 . Specifically, in one embodiment, the piezoelectric sensor 220 in the infusion bag 200 communicates with the host computer 240 in the infusion alarm system, so as to monitor the liquid level of the infusion bag 200, without requiring medical staff to monitor the infusion bag 200 all the time. The liquid level is monitored, which improves the work efficiency of medical staff.

Specifically, in one embodiment, the piezoelectric sensor 220 is used to detect the change of the surface tension of the infusion bag 200 to obtain a pressure change signal, and transmit the pressure change signal to the host 240 connected to the piezoelectric sensor 220 . The host 240 is used to process the pressure change signal to obtain the liquid level information of the infusion bag 200, so as to give an alarm when the liquid level of the infusion bag 200 is lower than the preset liquid level.

Specifically, in one embodiment, the piezoelectric sensor 220 is integrated in the lower part of the outer surface of the infusion bag 200, and the signal output end of the piezoelectric sensor 220 is arranged on the top of the hanging ring of the infusion bag 200, and is used to communicate with the infusion bag 200. The communication interface in the host 240 is directly connected, and the wire between the signal output end of the piezoelectric sensor 220 and the piezoelectric sensor 220 is set in the interlayer of the infusion bag 200 .

Specifically, in one embodiment, the number of piezoelectric sensors 220 is two groups, and the two groups of piezoelectric sensors 220 are the first piezoelectric sensor and the second piezoelectric sensor, and the part of the first piezoelectric sensor is arranged along the vertical direction. , the second piezoelectric sensor is arranged along the lateral direction. A part of the first piezoelectric sensor along the length direction is integrated on the hard part in the bottom of the infusion bag 200 , and another part of the first piezoelectric sensor along the length direction is integrated on the lower outer pia of the infusion bag 200 . The second piezoelectric sensor is integrated above the top of the first piezoelectric sensor in the infusion bag 200 in the lateral direction.

Specifically, in one embodiment, the second piezoelectric sensors are multi-channel, and the multiple second piezoelectric sensors are integrated in parallel above the top of the first piezoelectric sensor in the infusion bag 200 .

Specifically, in one embodiment, a part of the piezoelectric sensor 220 along the length direction is arranged on the hard part in the bottom of the infusion bag, and the other part of the piezoelectric sensor 220 along the length direction is arranged on the lower part of the infusion bag. On the outer pia.

For the specific process and structure of each functional unit of the piezoelectric sensor 220 in the infusion bag 200 to realize their respective functions in this embodiment, please refer to the specific content described in the above-mentioned embodiments shown in FIG. 1 to FIG.

For the specific process and structure of each functional unit of the host computer 240 in the infusion alarm system in this embodiment to realize their respective functions, please refer to the specific content described in the embodiments shown in FIGS. 1 to 9 above, and details will not be repeated here.

Specifically, the infusion alarm system and the infusion bag provided in this embodiment are provided with a communication interface connected to the piezoelectric sensor on the host computer, and the piezoelectric sensor is used to detect the change of the surface tension in the infusion bag to obtain a pressure change signal, and the The pressure change signal is transmitted to the host, and the host is used to process the pressure change signal to obtain the liquid level information of the infusion bag, so as to give an alarm when the liquid level of the infusion bag is lower than the preset liquid level, and the central processing module in the host and The monitoring platform is connected by communication to transmit the alarm information to the monitoring platform, so that the medical staff can replace the infusion bag for the corresponding patient as soon as possible, without the need for the medical staff to always pay attention to the liquid level status of the patient's infusion bag, and improve the work efficiency of the medical staff.

It should be noted that each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. For the same and similar parts in each embodiment, refer to each other, that is, Can.

Claims (14)

1. A transfusion alarm system, characterized in that, the transfusion alarm system comprises: a host, on which a communication interface connected to a piezoelectric sensor is provided; The piezoelectric sensor is used to detect the change of surface tension in the infusion bag to obtain a pressure change signal, and transmit the pressure change signal to the host; The host computer is used to process the pressure change signal to obtain the liquid level information of the infusion bag, so as to give an alarm reminder when the liquid level of the infusion bag is lower than a preset liquid level; The host also includes a central processing module, which communicates with the monitoring platform to transmit alarm information to the monitoring platform. 2. The infusion alarm system according to claim 1, further comprising a piezoelectric sensor, the piezoelectric sensor is connected to the communication interface, and the piezoelectric sensor is arranged on the The outer surface of the infusion bag. 3. The infusion alarm system according to claim 2, wherein the piezoelectric sensor is arranged on the lower part of the outer surface of the infusion bag by pasting, and the signal output end of the piezoelectric sensor is connected to the The communication interface is connected. 4. The transfusion alarm system according to claim 2, characterized in that, the piezoelectric sensor is integrated in the lower part of the outer surface of the transfusion bag by means of integration, and the signal output terminal of the piezoelectric sensor is arranged on the On the top of the hanging ring of the infusion bag, and directly connected with the communication interface in the host, and the wire between the signal output end of the piezoelectric sensor and the piezoelectric sensor is arranged in the interlayer of the infusion bag . 5. The transfusion alarm system as claimed in claim 4, wherein the quantity of the piezoelectric sensors is two groups, and the piezoelectric sensors of the two groups are a first piezoelectric sensor and a second piezoelectric sensor, the first piezoelectric sensor The part of the piezoelectric sensor is arranged along the vertical direction, and the second piezoelectric sensor is arranged along the lateral direction; A part of the first piezoelectric sensor along the length direction is integrated on the hard part at the bottom of the infusion bag, and another part of the first piezoelectric sensor along the length direction is integrated on the soft part at the bottom of the infusion bag. on the adventitia; The second piezoelectric sensor is integrated above the top of the first piezoelectric sensor in the infusion bag along the lateral direction. 6. The transfusion alarm system according to claim 5, characterized in that, the second piezoelectric sensor is multi-channel, and multiple channels of the second piezoelectric sensor are integrated in parallel with the first sensor in the infusion bag. above the top of the piezoelectric sensor. 7. The infusion alarm system according to claim 2, characterized in that, a part of the piezoelectric sensor along the length direction is arranged on the hard part in the bottom of the infusion bag, and the piezoelectric sensor is arranged on the hard part along the length direction. The other part of the infusion bag is set on the lower part of the pia mater. 8. The infusion alarm system according to claim 2, wherein the piezoelectric sensor is a piezoresistive elliptical piezoelectric sensor or a piezoresistive wire. 9. An infusion bag, characterized in that: it includes a piezoelectric sensor for obtaining surface tension in the infusion bag, the piezoelectric sensor is arranged on the surface of the infusion bag, and the piezoelectric sensor is pasted or The integrated method is arranged on the outer surface of the infusion bag. 10. The infusion bag according to claim 9, wherein the piezoelectric sensor is used to detect the change of the surface tension of the infusion bag to obtain a pressure change signal, and transmit the pressure change signal to the piezoelectric sensor. the connected host; The host is configured to process the pressure change signal to obtain liquid level information of the infusion bag, so as to give an alarm when the liquid level of the infusion bag is lower than a preset liquid level. 11. The infusion bag as claimed in claim 10, wherein the signal output end of the piezoelectric sensor is arranged on the top of the hanging ring of the infusion bag, and is used to be connected with the communication interface in the host, And the wire between the signal output end of the piezoelectric sensor and the piezoelectric sensor is arranged in the interlayer of the infusion bag. 12. The infusion bag according to claim 11, characterized in that, the quantity of the piezoelectric sensors is two groups, the piezoelectric sensors of the two groups are the first piezoelectric sensor and the second piezoelectric sensor, the first piezoelectric sensor The part of the electric sensor is arranged along the vertical direction, and the second piezoelectric sensor is arranged along the transverse direction; A part of the first piezoelectric sensor along the length direction is integrated on the hard part at the bottom of the infusion bag, and another part of the first piezoelectric sensor along the length direction is integrated on the soft part at the bottom of the infusion bag. on the adventitia; The second piezoelectric sensor is integrated above the top of the first piezoelectric sensor in the infusion bag along the lateral direction. 13. The infusion bag according to claim 12, wherein the second piezoelectric sensor is multi-channel, and multiple channels of the second piezoelectric sensor are integrated in parallel with the first piezoelectric sensor in the infusion bag. above the top of the electrical sensor. 14. The infusion bag according to claim 9, characterized in that, a part of the piezoelectric sensor along the length direction is arranged on the hard part in the bottom of the infusion bag, and the piezoelectric sensor is arranged on the hard part along the length direction. The other part is set on the lower pial part of the infusion bag.