TWM636608U - Liquid level sensible drainage bottle device - Google Patents

Abstract

A drainage bottle device for liquid level sensing, comprising: a system housing, a drainage bottle, a drainage tube, a suction pump, and a liquid detection device, the liquid detection device includes a capacitive liquid level sensor, The capacitive liquid level sensor senses the liquid level of the drainage bottle by using two sensing electrodes respectively applied with driving signals and both of which are integral electrodes.

Description

Drainage bottle device for liquid level sensing

The invention relates to a chest drainage bottle, in particular to a drainage bottle device for liquid level sensing.

Chest drainage bottle is a device used for chest drainage in pneumothorax, thoracic surgery, pleural effusion, pleurophorax, chylothorax, hemothorax, etc. Through thoracic drainage, it can achieve the functions of draining fluid from the thoracic cavity to help diagnosis, and draining air, blood and water in the pleural cavity.

In the known chest drainage bottle, one end of a chest drainage tube is connected to the patient, and the other end of the chest drainage tube is connected in series to several bottles such as a collection bottle and a water-sealed bottle before being connected to the aspirator, so that the liquid can be drained automatically. The patient end is aspirated into the collection bottle.

However, this conventional structure is not only very complicated in setting due to the need to adjust multiple bottles at the same time, but also difficult to perform real-time and accurate liquid level sensing of the collected liquid, so there is a need for improvement.

Therefore, the purpose of this creation is to provide a liquid level sensing drainage bottle device to solve the problems of the prior art.

The technical means adopted in this work to solve the problems of the prior art is to provide a drainage bottle device for liquid level sensing, including: a system housing, one of the front outer surfaces of the system housing is set as a drainage bottle installation surface , a drainage mechanism setting space is formed inside the system housing; a drainage bottle is installed on the drainage bottle mounting surface of the system housing; a drainage tube has a suction end and a collection end, and the suction end extends on the Outside the system housing, the collection end extends to the drainage bottle installation surface through the drainage mechanism setting space, and communicates with the drainage bottle installed on the drainage bottle installation surface; a suction pump is arranged on the drainage mechanism. In the space, the suction pump is connected to the drainage tube, and the suction pump is configured to drive the drainage tube to suck a liquid to be detected from the suction end toward the collection end by generating negative pressure, so that the The liquid to be detected is collected into the drainage bottle through the drainage tube; and a liquid detection device is arranged in the system casing, the liquid detection device includes a capacitive liquid level sensor, and the capacitive liquid level sensor Comprising a pair of a first sensing electrode and a second sensing electrode, a drive unit, and a liquid level judgment unit, the first sensing electrode and the second sensing electrode are all integral electrodes, the first sensing electrode A sensing electrode and the second sensing electrode are symmetrically arranged on the drainage bottle installation surface in a height direction of the system housing and face the drainage bottle installed on the drainage bottle installation surface, and the driving unit is coupled to the drainage bottle The first sensing electrode and the second sensing electrode are configured to apply a first driving signal and a second driving signal respectively to the first sensing electrode and the second sensing electrode at the same time, and the liquid level judgment The unit is coupled to the first sensing electrode and the second sensing electrode, and the liquid level of the liquid to be detected in the drainage bottle is sensed by using the first sensing electrode and the second sensing electrode to obtain Level information.

In one embodiment of the present creation, a drainage bottle device for liquid level sensing is provided, wherein in the capacitive liquid level sensor, the driving unit is connected to the first sensing electrode and the second sensing electrode The applied first driving signal and the second driving signal are out-of-phase driving signals with a signal phase difference of 180 degrees.

In one embodiment of the present creation, a drainage bottle device for liquid level sensing is provided, wherein the capacitive liquid level sensor further includes a first shielding electrode and a second shielding electrode, and the first shielding electrode is arranged at The backside of the first sensing electrode, the second shielding electrode is arranged on the backside of the second sensing electrode, the driving unit is coupled to the first shielding electrode and the second shielding electrode, and configured to simultaneously The first shielding electrode and the second shielding electrode apply a first shielding signal and a second shielding signal, the first shielding signal is in phase with the first driving signal, the second shielding signal is in phase with the second driving signal The signal is the same signal.

In one embodiment of the present creation, a drainage bottle device for liquid level sensing is provided, wherein the capacitive liquid level sensor further includes a pair of a first reference electrode and a second reference electrode, and the first reference electrode Both the electrode and the second reference electrode are integral electrodes, and the first reference electrode and the second reference electrode are symmetrically arranged on the installation surface of the drainage bottle in the direction of the height of the system housing and facing to be installed on the drainage bottle. The drainage bottle on the surface, the drive unit is coupled to the first reference electrode and the second reference electrode, and is configured to apply a third drive signal and a drive signal to the first reference electrode and the second reference electrode simultaneously The fourth driving signal, the third driving signal and the fourth driving signal are out-of-phase driving signals with a signal phase difference of 180 degrees, the liquid level judging unit is coupled to the first reference electrode and the second reference electrode, and uses The first reference electrode and the second reference electrode sense the liquid level reference value of the drainage bottle, so as to improve the accuracy of liquid level sensing of the liquid to be detected.

In one embodiment of the present creation, a drainage bottle device for liquid level sensing is provided, wherein the capacitive liquid level sensor further includes a third shielding electrode and a fourth shielding electrode, and the third shielding electrode is arranged at On the backside of the first reference electrode, the fourth shielding electrode is arranged on the backside of the second reference electrode, the drive unit is coupled to the third shielding electrode and the fourth shielding electrode, and is configured to simultaneously The shielding electrode and the fourth shielding electrode apply a third shielding signal and a fourth shielding signal, the third shielding signal is in phase with the third driving signal, the fourth shielding signal is in phase with the fourth driving signal same signal.

In one embodiment of the present creation, a drainage bottle device for liquid level sensing is provided, wherein the liquid detection device further includes a liquid color sensor, which is arranged in the space where the drainage mechanism is installed and corresponds to the drainage bottle, so as to sense Measure the liquid color of the liquid to be detected in the drainage bottle to obtain liquid color information.

In one embodiment of the present creation, a drainage bottle device for liquid level sensing is provided, wherein the liquid detection device further includes a label image recognizer, which is installed in the space where the drainage mechanism is installed and faces the drainage bottle, so as to sense A label identification code identifying the drainage bottle is detected to obtain label identification information.

In one embodiment of the present creation, a drainage bottle device for liquid level sensing is provided, which further includes a cloud transmission device, which is arranged in the space where the drainage mechanism is installed and coupled to the liquid detection device. The cloud transmission device is configured to The detection information from the liquid detection device is transmitted to a cloud data analysis device, and the cloud data analysis is performed on the cloud data analysis device.

In one embodiment of the present creation, a drainage bottle device for liquid level sensing is provided, which further includes a wireless remote transmission device, which is installed in the space where the drainage mechanism is installed and coupled to the liquid detection device. The device is configured to wirelessly transmit detection information from the liquid detection device to a remote mobile device for notification and/or display on the remote mobile device.

In one embodiment of the present invention, a liquid level sensing drainage bottle device is provided, wherein the remote mobile device is a wearable mobile device.

Through the technical means adopted in this creation, the drainage bottle device for liquid level sensing in this creation only needs to be equipped with a single drainage bottle in structure, and the capacitive liquid level sensor can be used for real-time liquid level detection. Sensing. Moreover, in terms of liquid level sensing, the drainage bottle device for liquid level sensing in the present invention can achieve accurate detection by using two sensing electrodes, which are respectively applied with drive signals and are all integrated electrodes, as the main structure. Liquid level sensing. In a preferred embodiment, the drainage bottle device for liquid level sensing of the present invention further uses out-of-phase driving to cooperate with the electrode shield and the reference electrode, so as to improve the accuracy of liquid level sensing.

Below, according to Fig. 1 to Fig. 5, the embodiment of this creation is described. This description is not intended to limit the implementation of this creation, but is one of the embodiments of this creation.

As shown in Figures 1 to 5, a liquid level sensing drainage bottle device 100 according to an embodiment of the present invention includes: a system housing 1, a drainage bottle 2, a drainage tube 3, and a suction A pump 4 and a liquid detection device 5 .

As shown in FIG. 1 and FIG. 2 , one front outer surface of the system casing 1 is set as a drainage bottle mounting surface 11 , and a drainage mechanism installation space 10 is formed inside the system casing 1 . The drainage bottle installation surface 11 is used for installing the drainage bottle 2 , and the drainage mechanism installation space 10 is used for setting the suction pump 4 and the liquid detection device 5 .

As shown in FIG. 1 and FIG. 2 , the drainage bottle 2 is installed on the drainage bottle installation surface 11 of the system housing 1 . The drainage bottle 2 is used to accommodate the fluid drained from the chest cavity. Preferably, in order to observe the liquid collected in the drainage bottle 2 with naked eyes and instruments, the drainage bottle 2 is made of transparent material in this embodiment.

As shown in Figure 1 and Figure 2, the drainage tube 3 has a suction end 31 and a collection end 32, the suction end 31 extends outside the system housing 1, and the collection end 32 is disposed through the drainage mechanism The space 10 extends to the drainage bottle installation surface 11 and communicates with the drainage bottle 2 installed on the drainage bottle installation surface 11 . The suction end 31 is used to connect to a patient, so as to perform chest drainage on the patient through the drainage tube 3 .

As shown in Figure 2, the suction pump 4 is installed in the drainage mechanism installation space 10, the suction pump 4 is communicated with the drainage tube 3, and the suction pump 4 is configured to drive the suction tube by generating negative pressure. The drainage tube 3 sucks a liquid L to be detected from the suction end 31 toward the collection end 32 , so that the liquid L to be detected is collected into the drainage bottle 2 through the drainage tube 3 . Specifically, in this embodiment, the suction pump 4 communicates with the drainage bottle 2 through a suction tube 41 extending to the installation surface 11 of the drainage bottle, and communicates with the drainage tube 3 through the drainage bottle 2 . The suction pump 4 pumps air through the suction tube 41 to the drainage bottle 2, and generates a negative pressure in the drainage bottle 2, so that the liquid L to be detected is sucked and collected into the drainage bottle 2 through the drainage tube 3 middle. Of course, the invention is not limited thereto, and the suction pump 4 can also utilize other configurations to achieve the effect of driving the drainage tube 3 to perform suction.

As shown in Figures 1 to 4, the liquid detection device 5 is disposed on the system housing 1, the liquid detection device 5 includes a capacitive liquid level sensor 6, and the capacitive liquid level sensor 6 includes A pair of a first sensing electrode 611 and a second sensing electrode 612, a driving unit 62, and a liquid level judging unit 63, the first sensing electrode 611 and the second sensing electrode 612 are integrated The first sensing electrode 611 and the second sensing electrode 612 are symmetrically arranged on the drainage bottle installation surface 11 in a height direction of the system housing 1 and face the drainage bottle installation surface 11. Drainage bottle 2, the drive unit 62 is coupled to the first sensing electrode 611 and the second sensing electrode 612, and is configured to simultaneously apply A first driving signal E1 and a second driving signal E2, the liquid level judging unit 63 is coupled to the first sensing electrode 611 and the second sensing electrode 612, and utilizes the first sensing electrode 611 and the second sensing electrode 612 The second sensing electrode 612 senses the liquid level of the liquid L to be detected in the drainage bottle 2 to obtain liquid level information.

Specifically, as shown in Figures 1 to 3, in the capacitive liquid level sensor 6, the capacitance between the paired first sensing electrodes 611 and the second sensing electrodes 612 will be It is affected by the medium between the first sensing electrode 611 and the second sensing electrode 612 . Therefore, as the liquid level of the liquid L to be detected in the drainage bottle 2 changes, the capacitance between the first sensing electrode 611 and the second sensing electrode 612 will also change accordingly, so by detecting By finding out the change of the capacitance, the liquid level height of the liquid L to be detected in the drainage bottle 2 can be calculated correspondingly, and the liquid level information can be obtained.

Preferably, as shown in Figures 1 to 4, in the liquid level sensing drainage bottle device 100 of an embodiment of the present invention, in the capacitive liquid level sensor 6, the drive unit 62 The first driving signal E1 and the second driving signal E2 applied to the first sensing electrode 611 and the second sensing electrode 612 are out-of-phase driving signals with a signal phase difference of 180 degrees.

Specifically, although the first sensing electrode 611 and the second sensing electrode 612 can sense the change of the liquid level, they may be disturbed by human body during the sensing process, causing additional parasitic capacitance , causing a deviation in the detected capacitance, which affects the result of liquid level sensing. By making the first driving signal E1 and the second driving signal E2 mutually out-of-phase driving signals, the symmetry of the electrical model between the first sensing electrode 611 and the second sensing electrode 612 can be maintained, wherein and the interference caused by the human body, thereby eliminating detection bias.

Preferably, as shown in FIG. 4, in the liquid level sensing drainage bottle device 100 of an embodiment of the present invention, the capacitive liquid level sensor 6 further includes a first shielding electrode 613 and a first shielding electrode 613. Two shielding electrodes 614, the first shielding electrode 613 is arranged on the backside of the first sensing electrode 611, the second shielding electrode 614 is arranged on the backside of the second sensing electrode 612, the driving unit 62 is coupled to the second A shielding electrode 613 and the second shielding electrode 614, and configured to simultaneously apply a first shielding signal S1 and a second shielding signal S2 to the first shielding electrode 613 and the second shielding electrode 614, the first shielding The signal S1 is in the same phase as the first driving signal E1, and the second shielding signal S2 is in the same phase as the second driving signal E2.

Specifically, it can be seen from FIG. 3 that the sensing direction of the first sensing electrode 611 and the second sensing electrode 612 is not only toward the side of the drainage bottle 2 to sense the change of the liquid level, but also toward the back side. The side is affected by other media. Therefore, by setting the first shielding electrode 613 and the second shielding electrode 614, the first sensing electrode 611 and the second sensing electrode 612 can be properly shielded, and the sensing direction can be focused on the drainage bottle. 2, and can also be used as a barrier to prevent other influences and improve the accuracy of sensing.

Preferably, as shown in FIG. 4 , in the liquid level sensing drainage bottle device 100 of an embodiment of the present invention, the capacitive liquid level sensor 6 further includes a pair of first reference electrodes 615 and a second reference electrode 616, the first reference electrode 615 and the second reference electrode 616 are all integrated electrodes, the first reference electrode 615 and the second reference electrode 616 are aligned in the height direction of the system housing 1 And symmetrically arranged on the drainage bottle installation surface 11 and facing the drainage bottle 2 installed on the drainage bottle installation surface 11, the driving unit 62 is coupled to the first reference electrode 615 and the second reference electrode 616, and configured At the same time, a third drive signal E3 and a fourth drive signal E4 are respectively applied to the first reference electrode 615 and the second reference electrode 616, and the third drive signal E3 and the fourth drive signal E4 have a signal phase difference. 180-degree out-of-phase drive signal, the liquid level judging unit 63 is coupled to the first reference electrode 615 and the second reference electrode 616, and the drainage bottle 2 is controlled by the first reference electrode 615 and the second reference electrode 616 The liquid level reference value is sensed to improve the liquid level sensing accuracy of the liquid L to be detected.

Specifically, the paired first reference electrode 615 and the second reference electrode 616 can be used to sense the lowest liquid level, so as to provide The reference value of the liquid level height improves the accuracy of liquid level sensing. Moreover, the paired first reference electrode 615 and the second reference electrode 616 can also be used for environmental value sensing when there is no liquid flowing into the drainage bottle 2, and are also provided as a liquid level reference value to increase the liquid level. Sensing accuracy.

Preferably, as shown in FIG. 4, in the drainage bottle device 100 for liquid level sensing according to an embodiment of the present invention, the capacitive liquid level sensor 6 further includes a third shielding electrode 617 and a first shielding electrode 617. Four shielding electrodes 618, the third shielding electrode 617 is arranged on the backside of the first reference electrode 615, the fourth shielding electrode 618 is arranged on the backside of the second reference electrode 616, the driving unit 62 is coupled to the third shielding electrode electrode 617 and the fourth shielding electrode 618, and configured to simultaneously apply a third shielding signal S3 and a fourth shielding signal S4 to the third shielding electrode 617 and the fourth shielding electrode 618, the third shielding signal S3 It is the same phase as the third driving signal E3, and the fourth shielding signal S4 is the same signal as the fourth driving signal E4.

Specifically, the functions of the first shielding electrode 613 and the second shielding electrode 614 are the same, by setting the third shielding electrode 617 and the fourth shielding electrode 618, the first reference electrode 615 and the second shielding electrode 615 can be The two reference electrodes 616 are properly shielded to focus the sensing direction on the drainage bottle 2 and also serve as a barrier to prevent other influences and improve the accuracy of sensing.

As shown in Figure 2, in the liquid level sensing drainage bottle device 100 of an embodiment of the present invention, the liquid detection device 5 further includes a liquid color sensor 7, which is arranged in the drainage mechanism installation space 10 and Corresponding to the drainage bottle 2 , the liquid color of the liquid L to be detected in the drainage bottle 2 is sensed to obtain liquid color information.

Specifically, the liquid color of the liquid L to be detected may also be one of the basis for diagnosis. By setting the liquid color sensor 7, the liquid color information can be obtained as a detection in addition to the liquid level information. Information. The liquid color sensor 7 can be various types of liquid color sensors that sense in any known manner, and the present invention is not particularly limited thereto. In addition, a sample sampling area 21 can be further set in the drainage bottle 2 . When the liquid L to be tested is sucked into the drainage bottle 2, it will flow into the sample sampling area 21 at the first time, so that the medical staff can check and draw the liquid sample. When the liquid in the sample sampling area 21 exceeds the designed height, it will flow into the drainage bottle 2 .

As shown in Figure 2, in the liquid level sensing drainage bottle device 100 of an embodiment of the present invention, the liquid detection device 5 further includes a label image recognizer 8, which is installed in the drainage mechanism installation space 10 and faces the The drainage bottle 2 is correspondingly sensed to identify a label identification code (not shown) of the drainage bottle 2 to obtain label identification information.

Specifically, the drainage bottle 2 is preferably detachably mounted on the system casing 1, so as to be conveniently replaced with a new drainage bottle during each chest drainage. Moreover, each drainage bottle can be provided with an identification label respectively, and the label identification code on the identification label can be sensed and recognized by the label image recognizer 8, so that information about the drainage bottle and/or Or the related information of the chest drainage (identification information of the label) as the detection information.

As shown in Fig. 2 and Fig. 5, the liquid level sensing drainage bottle device 100 of an embodiment of the invention further includes a cloud transmission device 91, which is installed in the drainage mechanism installation space 10 and coupled to the The liquid detection device 5, the cloud transmission device 91 is configured to transmit the detection information from the liquid detection device 5 to a cloud data analysis device D1, and the cloud data analysis is performed on the cloud data analysis device D1.

Specifically, the cloud transmission device 91 can transmit the detection information to the cloud data analysis device D1 through a wired or wireless network, so that the cloud data analysis device D1 can analyze the detection information based on the detection information collected from multiple parties. Perform big data analysis and various management. The detection information includes liquid level information, and may further include the liquid color information, the label identification information, or related or derivative information of these information.

As shown in Figure 2 and Figure 5, in the drainage bottle device 100 for liquid level sensing in an embodiment of the present invention, a wireless remote transmission device 92 is further included, which is installed in the drainage mechanism installation space 10 and coupled Connected to the liquid detection device 5, the wireless remote transmission device 92 is configured to transmit the detection information from the liquid detection device 5 to a remote mobile device D2 in a wireless manner, and notify the remote mobile device D2 and/or display.

Specifically, through the setting of the wireless remote transmission device 92, the detection information can be conveniently sent to the remote mobile device D2 in a wireless manner such as Bluetooth, Wi-Fi, etc., so that medical staff, patients, or relatives of patients Relevant data can be obtained in real time through the remote mobile device D2. Preferably, the remote mobile device D2 can be a wearable mobile device D3 such as a smart watch.

In addition, as shown in FIG. 2 and FIG. 5 , in the liquid level sensing drainage bottle device 100 of an embodiment of the present invention, the liquid detection device 5 is further provided with a display panel 51 and a data connection port 52 . The display panel 51 is used for displaying the detection information, and can be further used as a setting/operation interface of the liquid detection device 5 and other components (eg, the suction pump 4 ). The data connection port 52 is, for example, a USB connection port for data transmission between the liquid level sensing drainage bottle device 100 and an external device D4.

With the above-mentioned structure, the drainage bottle device 100 for liquid level sensing of the present invention only needs to set up a single drainage bottle 2 in structure, and the capacitive liquid level sensor 6 can be used for real-time liquid level sensing. Measurement. Moreover, in terms of liquid level sensing, the drainage bottle device 100 for liquid level sensing of the present invention can achieve accurate sensing by using two sensing electrodes, which are respectively applied with driving signals and are all integrated electrodes, as the main structure. liquid level sensing. In a preferred embodiment, the liquid level sensing drainage bottle device 100 of the present invention further uses out-of-phase driving to cooperate with the electrode shield and the reference electrode, so as to improve the accuracy of liquid level sensing.

The above descriptions and illustrations are only descriptions of the preferred embodiments of this creation. Those who have common knowledge of this technology can make other modifications according to the scope of the patent application defined below and the above descriptions, but these modifications should still be It is within the scope of rights of this creation for the creative spirit of this creation.

100: Drainage bottle device for liquid level sensing 1: System housing 10: Drainage mechanism setting space 11: Drainage bottle installation surface 2: Drainage bottle 21: Sample sampling area 3: drainage tube 31: suction end 32: Collector 4: Suction pump 41: Exhaust pipe 5: Liquid detection device 51: Display panel 52:Data port 6: Capacitive liquid level sensor 611: the first sensing electrode 612: the second sensing electrode 613: the first shielding electrode 614: the second shielding electrode 615: first reference electrode 616: the second reference electrode 617: The third shielding electrode 618: The fourth shielding electrode 62: Drive unit 63: Liquid level judging unit 7: Liquid color sensor 8: Label Image Recognizer 91: Cloud transmission device 92: Wireless remote transmission device D1: Cloud data analysis device D2: Remote mobile device D3: Wearable Mobile Devices D4: External device E1: The first driving signal E2: The second drive signal E3: The third driving signal E4: The fourth driving signal L: liquid to be tested S1: The first shielding signal S2: The second shielding signal S3: The third shielding signal S4: The fourth shielding signal

[Fig. 1] is a three-dimensional schematic diagram showing a drainage bottle device for liquid level sensing according to an embodiment of the present invention; [Fig. 2] is a schematic cross-sectional view showing a drainage bottle device for liquid level sensing according to an embodiment of the present invention; [Fig. 3] is a schematic diagram showing the liquid level sensing principle of the capacitive liquid level sensor of the drainage bottle device for liquid level sensing according to the embodiment of the present invention; [Fig. 4] is a schematic diagram showing the circuit structure of the capacitive liquid level sensor of the drainage bottle device for liquid level sensing according to the embodiment of the invention; [FIG. 5] is a schematic diagram showing a medical care system using the liquid level sensing drainage bottle device of the embodiment of the present invention.

100: Drainage bottle device for liquid level sensing

1: System housing

11: Drainage bottle installation surface

2: Drainage bottle

3: drainage tube

31: suction end

32: Collector

51: Display panel

6: Capacitive liquid level sensor

611: the first sensing electrode

612: the second sensing electrode

615: first reference electrode

616: the second reference electrode

Claims (10)

A drainage bottle device for liquid level sensing, comprising: A system housing, one of the front outer surfaces of the system housing is used as a drainage bottle installation surface, and a drainage mechanism installation space is formed inside the system housing; a drainage bottle installed on the drainage bottle mounting surface of the system housing; A drainage tube has a suction end and a collection end, the suction end extends outside the system housing, the collection end extends to the installation surface of the drainage bottle through the space provided by the drainage mechanism, and communicates with the The drainage bottle on the installation surface of the drainage bottle; A suction pump is arranged in the installation space of the drainage mechanism. The suction pump is connected to the drainage tube. The suction pump is configured to drive the drainage tube to suck a liquid to be tested from the drainage tube by generating negative pressure. suction end toward the collection end, so that the liquid to be detected is collected into the drainage bottle through the drainage tube; and A liquid detection device is arranged in the system casing, the liquid detection device includes a capacitive liquid level sensor, and the capacitive liquid level sensor includes a pair of a first sensing electrode and a second sensing electrode Electrodes, a driving unit, and a liquid level judging unit, the first sensing electrode and the second sensing electrode are all integrated electrodes, the first sensing electrode and the second sensing electrode are connected to the system housing One height direction is symmetrically arranged on the drainage bottle installation surface and faces the drainage bottle installed on the drainage bottle installation surface, the driving unit is coupled to the first sensing electrode and the second sensing electrode, and configured At the same time, a first driving signal and a second driving signal are respectively applied to the first sensing electrode and the second sensing electrode, and the liquid level judging unit is coupled to the first sensing electrode and the second sensing electrode. electrodes, and use the first sensing electrode and the second sensing electrode to sense the liquid level of the liquid to be detected in the drainage bottle to obtain liquid level information. The drainage bottle device for liquid level sensing as described in claim 1, wherein in the capacitive liquid level sensor, the first sensing electrode and the second sensing electrode applied by the drive unit The first driving signal and the second driving signal are out-of-phase driving signals with a signal phase difference of 180 degrees. The drainage bottle device for liquid level sensing as described in claim 1 or 2, wherein the capacitive liquid level sensor further includes a first shielding electrode and a second shielding electrode, and the first shielding electrode is arranged on the second shielding electrode a backside of a sensing electrode, the second shielding electrode is arranged on the backside of the second sensing electrode, the driving unit is coupled to the first shielding electrode and the second shielding electrode, and is configured to simultaneously The shielding electrode and the second shielding electrode apply a first shielding signal and a second shielding signal, the first shielding signal is in phase with the first driving signal, the second shielding signal is in phase with the second driving signal same signal. The drainage bottle device for liquid level sensing as described in claim 2, wherein the capacitive liquid level sensor further includes a pair of a first reference electrode and a second reference electrode, the first reference electrode and the second reference electrode The two reference electrodes are all integral electrodes, the first reference electrode and the second reference electrode are symmetrically arranged on the drainage bottle installation surface in the height direction of the system housing and face the drainage bottle installed on the drainage bottle installation surface. bottle, the drive unit is coupled to the first reference electrode and the second reference electrode, and is configured to simultaneously apply a third drive signal and a fourth drive signal to the first reference electrode and the second reference electrode respectively , the third drive signal and the fourth drive signal are out-of-phase drive signals with a signal phase difference of 180 degrees, and the liquid level judgment unit is coupled to the first reference electrode and the second reference electrode, and utilizes the first reference electrode The electrodes and the second reference electrode sense the liquid level reference value of the drainage bottle, so as to improve the accuracy of liquid level sensing of the liquid to be detected. The drainage bottle device for liquid level sensing as described in claim 4, wherein the capacitive liquid level sensor further includes a third shielding electrode and a fourth shielding electrode, and the third shielding electrode is arranged on the first reference On the back side of the electrode, the fourth shielding electrode is arranged on the backside of the second reference electrode, the driving unit is coupled to the third shielding electrode and the fourth shielding electrode, and configured to simultaneously control the third shielding electrode and the fourth shielding electrode A third shielding signal and a fourth shielding signal are applied to the fourth shielding electrode, the third shielding signal is in the same phase as the third driving signal, and the fourth shielding signal is the same signal as the fourth driving signal. The drainage bottle device for liquid level sensing as described in Claim 1, wherein the liquid detection device further includes a liquid color sensor, which is installed in the drainage mechanism installation space and corresponds to the drainage bottle, so as to sense the drainage bottle The liquid color of the liquid to be detected is obtained to obtain liquid color information. The drainage bottle device for liquid level sensing as described in Claim 1, wherein the liquid detection device further includes a label image recognizer, which is installed in the space where the drainage mechanism is installed and faces the drainage bottle, so as to sense and identify the drainage correspondingly A label identification code of the bottle to obtain label identification information. The drainage bottle device for liquid level sensing as described in claim 1, 6 or 7 further includes a cloud transmission device, which is arranged in the space where the drainage mechanism is installed and coupled to the liquid detection device, and the cloud transmission device is configured to The detection information from the liquid detection device is transmitted to a cloud data analysis device, and the cloud data analysis is performed on the cloud data analysis device. The drainage bottle device for liquid level sensing as described in claim 1 further includes a wireless remote transmission device, which is installed in the drainage mechanism installation space and coupled to the liquid detection device, and the wireless remote transmission device is configured to The detection information from the liquid detection device is wirelessly transmitted to a remote mobile device, and notified and/or displayed on the remote mobile device. The drainage bottle device for liquid level sensing according to claim 9, wherein the remote mobile device is a wearable mobile device.

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