TWI831406B - Liquid level sensing drainage bottle system - Google Patents

Abstract

Disclosed is a liquid level sensing drainage bottle system comprising: a system housing, a drainage bottle, a drainage tube, a suction pump, and a liquid detection device, wherein 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 one-piece electrodes.

Description

Liquid level sensing drainage bottle system

The present invention relates to a chest drainage bottle, and in particular to a liquid level sensing drainage bottle system.

The chest drainage bottle is a device used for chest drainage in situations such as pneumothorax, thoracic surgery, pleural effusion, pleural empyema, chylothorax, hemothorax, etc. Through thoracic drainage, fluid can be drained from the pleural cavity to aid diagnosis, and air, blood and water in the pleural cavity can be drained.

In a conventional 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-sealing bottle, and then connected to an aspirator to drain the liquid from the patient. The patient end is suctioned into the collection bottle.

However, this conventional architecture is not only very complicated in setting because multiple bottles need to be adjusted simultaneously, but it is also difficult to perform real-time and accurate liquid level sensing of the collected liquid, so there is a need for improvement.

Therefore, an object of the present invention is to provide a liquid level sensing drainage bottle system to solve the problems of the conventional technology.

The technical means adopted by the present invention to solve the problems of the prior art is to provide a liquid level sensing drainage bottle system, which includes: a system housing, and a front outer surface of the system housing is set as a drainage bottle mounting surface , a drainage mechanism installation space is formed inside the system casing; a drainage bottle is installed on the drainage bottle installation surface of the system casing; a drainage tube has a suction end and a collection end, and the suction end extends on Outside the system casing, the collection end extends to the drainage bottle mounting surface through the drainage mechanism setting space, and is connected to the drainage bottle installed on the drainage bottle mounting surface; a suction pump is provided 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 provided in the system housing. The liquid detection device includes a capacitive liquid level sensor. The capacitive liquid level sensor It includes a pair of a first sensing electrode and a second sensing electrode, a driving unit, and a liquid level judgment unit. The first sensing electrode and the second sensing electrode are both integrated electrodes, and the third sensing electrode A sensing electrode and the second sensing electrode are symmetrically arranged on the drainage bottle mounting surface in a height direction of the system housing and face the drainage bottle installed on the drainage bottle mounting surface, and the driving unit is coupled to the drainage bottle. The first sensing electrode and the second sensing electrode are configured to simultaneously apply a first driving signal and a second driving signal to the first sensing electrode and the second sensing electrode respectively, and the liquid level determination The unit is coupled to the first sensing electrode and the second sensing electrode, and uses the first sensing electrode and the second sensing electrode to perform liquid level sensing of the liquid to be detected in the drainage bottle, and obtains Liquid level information.

In one embodiment of the present invention, a drainage bottle system for liquid level sensing is provided, wherein in the capacitive liquid level sensor, the driving unit controls 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 invention, a drainage bottle system 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 disposed on The first sensing electrode backside, the second shielding electrode is disposed on the second sensing electrode backside, the driving unit is coupled to the first shielding electrode and the second shielding electrode, and is 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 the same phase as the first driving signal. The second shielding signal is in phase with the second driving signal. The signals are the same signals.

In one embodiment of the present invention, a drainage bottle system 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. The first reference electrode The electrode and the second reference electrode are both integrated electrodes. The first reference electrode and the second reference electrode are symmetrically arranged on the drainage bottle mounting surface in the height direction of the system housing and are installed facing the drainage bottle. On the drainage bottle above, the driving unit is coupled to the first reference electrode and the second reference electrode, and is configured to simultaneously apply a third driving signal and a third driving signal to the first reference electrode and the second reference electrode respectively. The fourth driving signal is an out-of-phase driving signal with a signal phase difference of 180 degrees from the fourth driving signal. The liquid level judgment unit is coupled to the first reference electrode and the second reference electrode, and utilizes The first reference electrode and the second reference electrode sense the liquid level reference value of the drainage bottle to improve the accuracy of liquid level sensing of the liquid to be detected.

In one embodiment of the present invention, a drainage bottle system 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 disposed on The first reference electrode is on the backside of the first reference electrode. The fourth shielding electrode is disposed on the backside of the second reference electrode. The driving unit is coupled to the third shielding electrode and the fourth shielding electrode, and is configured to simultaneously drive the third shielding electrode. The shield electrode and the fourth shield electrode apply a third shield signal and a fourth shield signal. The third shield signal is in the same phase as the third drive signal, and the fourth shield signal is in phase with the fourth drive signal. Same signal.

In one embodiment of the present invention, a drainage bottle system for liquid level sensing is provided, wherein the liquid detection device further includes a liquid color sensor, which is disposed in the drainage mechanism installation space and corresponds to the drainage bottle 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 invention, a drainage bottle system for liquid level sensing is provided, wherein the liquid detection device further includes a label image recognizer, which is disposed in the drainage mechanism installation space and faces the drainage bottle to sense the corresponding location. A label identification code of the drainage bottle is detected and the label identification information is obtained.

In one embodiment of the present invention, a liquid level sensing drainage bottle system is provided, further comprising a cloud transmission device, which is disposed in the drainage mechanism installation space 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 cloud data analysis is performed in the cloud data analysis device.

In one embodiment of the present invention, a drainage bottle system for liquid level sensing is provided, further comprising a wireless remote transmission device, which is disposed in the drainage mechanism installation space and coupled to the liquid detection device. The wireless remote transmission 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 fluid level sensing drainage bottle system is provided, wherein the remote mobile device is a wearable mobile device.

Through the technical means adopted in the present invention, the liquid level sensing drainage bottle system of the present invention only needs to install a single drainage bottle in structure, and can perform real-time liquid level measurement through the capacitive liquid level sensor. sensing. Moreover, in terms of liquid level sensing, the liquid level sensing drainage bottle system of the present invention is able to achieve precise detection by using a structure based on two sensing electrodes that are respectively applied with drive signals and are both integrated electrodes. Liquid level sensing. In a preferred embodiment, the liquid level sensing drainage bottle system of the present invention further uses out-of-phase driving to coordinate the electrode shield and the reference electrode, thereby improving the accuracy of liquid level sensing.

The embodiments of the present invention will be described below based on FIGS. 1 to 5 . This description is not intended to limit the implementation of the present invention, but is one example of the present invention.

As shown in Figures 1 to 5, a liquid level sensing drainage bottle system 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 Pump 4 and a liquid detection device 5.

As shown in Figures 1 and 2, a front outer surface of the system housing 1 is set as a drainage bottle mounting surface 11, and a drainage mechanism installation space 10 is formed inside the system housing 1. The drainage bottle mounting surface 11 is used to install the drainage bottle 2 , and the drainage mechanism installation space 10 is used to provide the suction pump 4 and the liquid detection device 5 .

As shown in Figures 1 and 2, the drainage bottle 2 is installed on the drainage bottle mounting surface 11 of the system housing 1. The drainage bottle 2 is used to contain chest drainage liquid. Preferably, in order to facilitate observation of the liquid collected in the drainage bottle 2 with the naked eye and instruments, the drainage bottle 2 is made of transparent material in this embodiment.

As shown in Figures 1 and 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 provided through the drainage mechanism. The space 10 extends to the drainage bottle mounting surface 11 and is connected to the drainage bottle 2 installed on the drainage bottle mounting surface 11 . The suction end 31 is used to connect to the patient to drain the patient's chest through the drainage tube 3 .

As shown in Figure 2, the suction pump 4 is disposed in the drainage mechanism installation space 10. The suction pump 4 is connected to the drainage pipe 3. The suction pump 4 is configured to drive the drainage mechanism 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 is connected to the drainage bottle 2 via an air suction pipe 41 extending to the drainage bottle mounting surface 11 , and is connected to the drainage tube 3 via the drainage bottle 2 . The suction pump 4 evacuates the drainage bottle 2 through the air extraction tube 41 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 present invention is not limited to this, and the suction pump 4 can also use 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 provided in the system housing 1. The liquid detection device 5 includes a capacitive liquid level sensor 6. 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 judgment unit 63. The first sensing electrode 611 and the second sensing electrode 612 are all integrated. type electrode, the first sensing electrode 611 and the second sensing electrode 612 are symmetrically arranged on the drainage bottle mounting surface 11 in the height direction of the system housing 1 and face the drainage bottle mounting surface 11 installed on the drainage bottle. Drainage bottle 2, the driving unit 62 is coupled to the first sensing electrode 611 and the second sensing electrode 612, and is configured to simultaneously apply force to the first sensing electrode 611 and the second sensing electrode 612 respectively. A first driving signal E1 and a second driving signal E2, the liquid level judgment 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 performs liquid level sensing on 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 electrode 611 and the second sensing electrode 612 will 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. Therefore, by detecting By detecting the change in capacitance, the liquid level height of the liquid L to be detected in the drainage bottle 2 can be correspondingly obtained, and the liquid level information can be obtained.

Preferably, as shown in Figures 1 to 4, in the liquid level sensing drainage bottle system 100 according to an embodiment of the present invention, in the capacitive liquid level sensor 6, the driving 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 changes in liquid level height, they may be interfered by the human body during the sensing process, causing additional parasitic capacitance. , causing the detected capacitance size to deviate, affecting the results of liquid level sensing. By making the first driving signal E1 and the second driving signal E2 be 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. and interference caused by the human body, thereby eliminating detection bias.

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

Specifically, it can be seen from Figure 3 that the sensing directions of the first sensing electrode 611 and the second sensing electrode 612 are not only directed toward the side of the drainage bottle 2 to sense changes in liquid level, but also toward the back side. side is affected by other media. Therefore, through the arrangement of 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. It can also serve as a barrier to prevent other influences and improve the accuracy of sensing.

Preferably, as shown in Figure 4, in the liquid level sensing drainage bottle system 100 according to 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 both integrated electrodes. The first reference electrode 615 and the second reference electrode 616 are oriented in the height direction of the system housing 1. And symmetrically arranged on the drainage bottle mounting surface 11 and facing the drainage bottle 2 installed on the drainage bottle mounting surface 11, the driving unit 62 is coupled to the first reference electrode 615 and the second reference electrode 616, and is configured At the same time, a third driving signal E3 and a fourth driving signal E4 are respectively applied to the first reference electrode 615 and the second reference electrode 616. The third driving signal E3 and the fourth driving signal E4 have a signal phase difference. 180-degree out-of-phase driving signals, the liquid level judgment unit 63 is coupled to the first reference electrode 615 and the second reference electrode 616, and uses the first reference electrode 615 and the second reference electrode 616 to determine the drainage bottle 2 The liquid level reference value is sensed to improve the accuracy of liquid level sensing of the liquid L to be detected.

Specifically, the pair of the first reference electrode 615 and the second reference electrode 616 can be used to sense the minimum liquid level to provide the signal sensed by the first sensing electrode 611 and the second sensing electrode 612 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 no liquid has flowed into the drainage bottle 2, and can also be provided as a liquid level reference value to increase the liquid level. Sensing accuracy.

Preferably, as shown in Figure 4, in the liquid level sensing drainage bottle system 100 according to an embodiment of the present invention, the capacitive liquid level sensor 6 further includes a third shielding electrode 617 and a third Four shield electrodes 618, the third shield electrode 617 is arranged on the back side of the first reference electrode 615, the fourth shield electrode 618 is arranged on the back side of the second reference electrode 616, the driving unit 62 is coupled to the third shield The electrode 617 and the fourth shielding electrode 618 are 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 is in 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 shield electrode 613 and the second shield electrode 614 are the same. Through the arrangement of the third shield electrode 617 and the fourth shield electrode 618, the first reference electrode 615 and the third shield electrode 615 can be connected to each other. The two reference electrodes 616 are properly shielded to focus the sensing direction to the drainage bottle 2 and can 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 system 100 according to an embodiment of the present invention, the liquid detection device 5 further includes a liquid color sensor 7, which is disposed 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. Through the arrangement of 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 provided in the drainage bottle 2 . When the liquid L to be detected is sucked into the drainage bottle 2, it will first flow into the sample sampling area 21 for medical staff to inspect and draw liquid samples. When the liquid in the sample sampling area 21 reaches the designed height, it will flow into the drainage bottle 2 .

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

Specifically, the drainage bottle 2 is preferably installed in the system housing 1 in a detachable manner, so as to facilitate replacement of a new drainage bottle during each chest drainage. Moreover, each drainage bottle can be provided with an identification tag. By using the tag image recognizer 8 to sense and identify the tag identification code on the identification tag, information about the drainage bottle and/or can be quickly obtained. Or the relevant information about this chest drainage (the tag identification information), as the detection information.

As shown in Figures 2 and 5, the liquid level sensing drainage bottle system 100 according to an embodiment of the present invention further includes a cloud transmission device 91, which is disposed in the drainage mechanism installation space 10 and coupled to The liquid detection device 5 and the cloud transmission device 91 are configured to transmit the detection information from the liquid detection device 5 to a cloud data analysis device D1, and perform cloud data analysis in 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 perform analysis based on the detection information collected from multiple parties. Carry out 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 Figures 2 and 5, the liquid level sensing drainage bottle system 100 according to an embodiment of the present invention further includes a wireless remote transmission device 92, which is disposed in the drainage mechanism installation space 10 and coupled to Connected to the liquid detection device 5, the wireless remote transmission device 92 is configured to wirelessly transmit detection information from the liquid detection device 5 to a remote mobile device D2, 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 through wireless methods such as Bluetooth and Wi-Fi, so that medical staff, patients, or relatives of patients can 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 FIGS. 2 and 5 , in the liquid level sensing drainage bottle system 100 according to 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 to display the detection information, and can further be used as a setting/operation interface for the liquid detection device 5 and other components (for example: the suction pump 4). The data connection port 52 is, for example, a USB connection port, which is used for data transmission between the liquid level sensing drainage bottle system 100 and an external device D4.

With the above structure, the liquid level sensing drainage bottle system 100 of the present invention only needs to install a single drainage bottle 2 in structure, and can perform real-time liquid level sensing through the capacitive liquid level sensor 6 Test. Moreover, in terms of liquid level sensing, the liquid level sensing drainage bottle system 100 of the present invention is able to achieve accurate results by using a structure based on two sensing electrodes that are respectively applied with drive signals and are both integrated electrodes. liquid level sensing. In a preferred embodiment, the liquid level sensing drainage bottle system 100 of the present invention further uses out-of-phase driving to coordinate the electrode shield and the reference electrode, thereby improving the accuracy of liquid level sensing.

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

100: Liquid level sensing drainage bottle system 1: System shell 10: Space for setting up drainage mechanism 11: Drainage bottle installation surface 2: Drainage bottle 21: Sample sampling area 3: Drainage tube 31:Suction end 32:Collection end 4:Suction pump 41:Suction tube 5: Liquid detection device 51:Display panel 52:Data port 6: Capacitive liquid level sensor 611: First sensing electrode 612: Second sensing electrode 613: First shield electrode 614: Second shield electrode 615: First reference electrode 616: Second reference electrode 617: Third shield electrode 618: Fourth shield electrode 62: Drive unit 63: Liquid level judgment unit 7: Liquid color sensor 8: Tag 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: first drive signal E2: second drive signal E3: The third drive signal E4: The fourth drive signal L: Liquid to be tested S1: first shielding signal S2: Second shielding signal S3: The third shielding signal S4: The fourth shielding signal

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

100: Liquid level sensing drainage bottle system

1: System shell

11: Drainage bottle installation surface

2: Drainage bottle

3: Drainage tube

31:Suction end

32:Collection end

51:Display panel

6: Capacitive liquid level sensor

611: First sensing electrode

612: Second sensing electrode

615: First reference electrode

616: Second reference electrode

Claims (10)

A liquid level sensing drainage bottle system, including: A system casing, one front outer surface of the system casing is set as a drainage bottle installation surface, and a drainage mechanism installation space is formed inside the system casing; A drainage bottle, installed on the drainage bottle mounting surface of the system casing; A drainage tube has a suction end and a collection end. The suction end extends outside the system casing. The collection end extends to the installation surface of the drainage bottle through the drainage mechanism setting space and is connected to the installation surface of the drainage bottle. The drainage bottle on the drainage bottle mounting surface; A suction pump is installed in the drainage mechanism installation space. The suction pump is connected to the drainage pipe. The suction pump is configured to drive the drainage pipe to suck a liquid to be detected from the drainage pipe by generating negative pressure. The end is sucked 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 provided in the system housing. The liquid detection device includes a capacitive liquid level sensor. The capacitive liquid level sensor includes a pair of first sensing electrodes and a second sensing electrode. electrode, a driving unit, and a liquid level judgment unit. The first sensing electrode and the second sensing electrode are 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 mounting surface and faces the drainage bottle installed on the drainage bottle mounting surface, the driving unit is coupled to the first sensing electrode and the second sensing electrode, and is 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 judgment 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 perform liquid level sensing of the liquid to be detected in the drainage bottle to obtain liquid level information. The liquid level sensing drainage bottle system of claim 1, wherein in the capacitive liquid level sensor, the driving unit applies the third voltage to the first sensing electrode and the second sensing electrode. The first driving signal and the second driving signal are out-of-phase driving signals with a signal phase difference of 180 degrees. The liquid level sensing drainage bottle system of 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 disposed on the first shielding electrode. A sensing electrode backside, the second shielding electrode is disposed 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 shield electrode and the second shield electrode apply a first shield signal and a second shield signal. The first shield signal is in the same phase as the first drive signal, and the second shield signal is in phase with the second drive signal. Same signal. The liquid level sensing drainage bottle system of 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 third The two reference electrodes are both integrated 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 installed on the drainage bottle installation surface. Bottle, the driving unit is coupled to the first reference electrode and the second reference electrode, and is configured to simultaneously apply a third driving signal and a fourth driving signal to the first reference electrode and the second reference electrode respectively. , the third driving signal is an out-of-phase driving signal with a signal phase difference of 180 degrees from the fourth driving signal. The liquid level judgment unit is coupled to the first reference electrode and the second reference electrode, and uses the first reference The electrode and the second reference electrode sense the liquid level reference value of the drainage bottle to improve the accuracy of liquid level sensing of the liquid to be detected. The liquid level sensing drainage bottle system of 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 disposed on the first reference On the back side of the electrode, the fourth shield electrode is disposed on the back side of the second reference electrode. The driving unit is coupled to the third shield electrode and the fourth shield electrode, and is configured to simultaneously control the third shield electrode and the fourth shield electrode. The fourth shielding electrode applies a third shielding signal and a fourth shielding signal, 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 liquid level sensing drainage bottle system of claim 1, wherein the liquid detection device further includes a liquid color sensor disposed in the drainage mechanism installation space and corresponding to the drainage bottle to sense the drainage bottle The liquid color of the liquid to be detected is obtained to obtain the liquid color information. The liquid level sensing drainage bottle system of claim 1, wherein the liquid detection device further includes a label image identifier, which is disposed in the drainage mechanism installation space and faces the drainage bottle to correspondingly sense and identify the drainage. A label identification code of the bottle to obtain label identification information. The liquid level sensing drainage bottle system as described in claim 1, 6 or 7 further includes a cloud transmission device, which is disposed in the drainage mechanism installation space 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 cloud data analysis is performed in the cloud data analysis device. The liquid level sensing drainage bottle system of claim 1 further includes a wireless remote transmission device, which is disposed 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 notification and/or display is performed on the remote mobile device. The fluid level sensing drainage bottle system of claim 9, wherein the remote mobile device is a wearable mobile device.

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