TWI783888B - Optical sensing drainage device - Google Patents

Abstract

The present invention relates to an optical sensing drainage device, comprising an optical sensor, a liquid box and a floating ball, wherein the optical sensor has a receiving and emitting unit, and the liquid box has a guiding tube, a guiding port, a guiding wall and an air suction port , the floating ball has an emission reflection unit, one end of the guide pipe of the liquid box is connected with an optical sensor, and the other end is provided with a floating ball, the guiding port is composed of a guiding wall, and the shape of the guiding wall is the same as that of the floating ball It is corresponding, and the light emitted by the transmitting and reflecting unit is received by the receiving and transmitting unit through the guiding tube and the guiding port.

Description

Optical sensing drainage device

The present invention relates to the optical sensing drainage device, in particular to optically interpreting the value of the drainage device, and knowing whether the drainage device is skewed by judging whether the light is received.

Negative pressure suction equipment is widely used in the medical field, usually including vacuum pump manufacturing suction negative pressure, pressure flow sensor monitoring, power supply, display and control input, drainage bottle and other parts.

Negative pressure suction equipment for drainage is mostly used for human organs due to trauma or infection and after surgery, such as open heart or open chest surgery, COVID-19 will also use chest suction equipment for treatment, when the body produces abnormal fluid (effusion), water, blood, abscess and even gas in different organs, such as pericardial effusion (Pericardial effusion), pleural effusion (Pleural effusion), surgery uses drainage to guide fluid and gas out of the body .

Take Chest drainage as an example. The pleural cavity is located between the visceral pleura and parietal pleura of the lung. If air or body fluid enters the pleural cavity due to trauma or surgery and causes pleural effusion, the lungs will be compressed and cannot be inflated. The patient will have shortness of breath. Long-term pleural effusion will lead to lung atrophy or effusion infection, which will cause the lung tissue to collapse. This is the occurrence of pneumothorax.

The treatment method of using a drainage tube to guide the effusion out is currently the most commonly accepted and better treatment. In the early stage, the drainage tube is connected to the drainage bottle to guide the effusion out by simple gravity, but In recent years, the use of negative pressure has been developed to draw out effusions instead of simple gravity. However, doctors still have to adjust the optimal suction pressure to help patients recover, and the leakage is also limited by recovery. How to reduce the manpower of medical staff and how to have a numerical and evaluable extubation index is still a major issue.

In the existing technology, the chest drainage equipment needs to be carried by the patient. Although the height conversion volume can be recorded, it cannot guarantee that the record is in a horizontal state at the moment. Capacitance liquid level gauge misjudged and measured the wrong value; the drainage device was accidentally overturned, the fluid would flow into the suction port, and be attracted to the vacuum pump to cause damage; when it was overturned, it could not issue a warning, etc.

Therefore, the inventor of this case came up with the present invention after observing the above issues.

To achieve the above purpose, the present invention provides an optical sensing and drainage device, which includes an optical sensor, a liquid box and a float, wherein the liquid box has a guide tube, a guide port, a guide wall and an air suction port.

Preferably, one end of the guide tube of the liquid box is connected to an optical sensor, and the other end is provided with a floating ball. The optical sensor further includes a receiving and emitting unit, and the floating ball further includes a corresponding emitting and reflecting unit. The receiving and emitting unit emits The light is reflected back to the receiving and emitting unit of the optical sensor through the emitting and reflecting unit of the floating ball.

Preferably, the guide port included in the guide tube in the liquid box is composed of a guide wall, and the design of the guide wall corresponds to the shape of the floating ball.

Preferably, the guide opening is a circular opening, and the guide wall is an annular structure.

Preferably, the shape design of the guide port and the guide wall in the guide tube is based on the shape of the float, so that when the float rises to a certain extent with the liquid level of the liquid in the liquid box, the float and the guide port , The guide wall can be completely sealed, further preventing the liquid in the liquid box from flowing out of the guide port.

Preferably, the air suction port is arranged above the guide port in the guide tube, near the end of the optical sensor, that is to say, the end away from the floating ball.

Preferably, the position of the floating ball is determined according to the amount of liquid in the liquid box. Because of the density of the floating ball, it is buoyant and floats on the liquid surface of the liquid, and the floating ball moves up and down as the liquid level rises and falls.

If the liquid box is tilted, the liquid level of the liquid in the liquid box will still remain horizontal, so the float will still float on the liquid surface, and the light emitted by the emission reflection unit will cause the guide tube to be skewed due to the skew of the liquid box. If the light cannot be received by the receiving and emitting unit of the optical sensor, it can be known that the liquid box is not in a horizontal state.

In order to enable those skilled in the art to understand the purpose, features and effects of the present invention, the present invention will be described in detail below by means of the following specific embodiments and accompanying drawings.

10: Optical sensor

11: Receiving and transmitting unit

20: Liquid box

21: Guiding tube

22: Guide port

23: guide wall

24: exhaust port

25: Air channel

30: Float

31: launch reflection unit

40: Host

41:Transmission unit

L: light

P: opening

S: Liquid

1 is a schematic diagram of an optical sensing drainage device according to the present invention; FIG. 2 is a schematic diagram of a skewed optical sensing drainage device according to the present invention; FIG. 3 is a schematic diagram of a guide tube of the optical sensing drainage device according to the present invention; and Fig. 4 is a schematic diagram of an application example of the optical sensing drainage device according to the present invention.

The inventive concept will now be explained more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the inventive concept are shown. Advantages and features of the inventive concept and methods for achieving it will be apparent below by referring to the exemplary embodiments described in more detail with reference to the accompanying drawings.

The terminology used herein is for describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the terms "a", "an" and "the" in the singular are intended to include the plural forms as well, unless the context clearly dictates otherwise. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present.

Exemplary embodiments are described herein with reference to the accompanying drawings, which are idealized exemplary illustrations. Accordingly, deviations from the illustrated shapes as a result, for example, of manufacturing techniques and/or tolerances are to be expected. Thus, the regions shown in the figures are schematic and their shapes are not intended to illustrate the actual shape of a region of a device and are not intended to limit the scope of example embodiments.

Please refer to FIG. 1 , which is a schematic diagram of an optical sensing drainage device according to the present invention. The optical sensing and drainage device of the present invention includes an optical sensor 10, a liquid box 20 and a float 30, wherein the liquid box 20 has a guide tube 21, a guide port 22, a guide wall 23, an air suction port 24, and an air channel 25 and opening P.

Specifically, the opening P is the position where the liquid S flows into the liquid box 20 , and in more detail, air also enters the liquid box 20 through the opening P.

Specifically, one end of the guide tube 21 of the liquid box 20 is connected to an optical sensor 10, and the other end is provided with a floating ball 30. The optical sensor 10 further includes a receiving and emitting unit 11, and the floating ball 30 also further includes a corresponding emission reflector. Unit 31, the light L emitted by the receiving and emitting unit 11 is reflected back to the optical sensor 10 to receive and emit the unit 11 through the emitting and reflecting unit 31 of the floating ball 30. However, it can also be reversed, and the emitting and reflecting unit 31 of the floating ball 30 emits the light L , is received by the receiving and transmitting unit 11.

Specifically, the guide port 22 included in the guide pipe 21 in the liquid box 20 is composed of a guide wall 23 , and the design of the guide wall 23 corresponds to the shape of the float 30 .

Specifically, the guide opening 22 is a circular opening, and the guide wall 23 is an annular structure.

Specifically, the air suction port 24 is disposed above the guide port 22 in the guide tube 21 , near the end of the optical sensor 10 , that is, the end away from the float 30 .

Specifically, the position of the air suction port 24 is on one side of the guide pipe 21 , and the opening of the air suction port 24 is outside the liquid box 20 , mainly to discharge the air in the liquid box 20 .

Specifically, one side of the guide wall 23 also has at least one air passage 25. The function of the air passage 25 is that when the external air suction device intends to discharge the air in the liquid box 20 through the air suction port 24, if there is no air passage 25 design, the suction force may suck up the liquid level of the liquid S in the guide tube 21, causing the floating ball 30 to move upwards, resulting in an error in judgment, because the liquid S in the entire liquid box 20 does not actually increase. The positions of multiple air channels 25 can be set from the bottom of the guide tube 21 to a position close to the guide wall 23 , or at least one air channel 25 can be set at a height below the guide wall 23 , as shown in FIG. 1 .

Specifically, the position of the float 30 is determined according to the amount of liquid S in the liquid box 20. Because of the density of the float 30, the density of the float 30 is less than the density of the liquid S in the liquid box 20 and floats on the liquid S. The surface, that is, floats on the surface of the liquid S due to buoyancy, and the float 30 moves up and down with the rise and fall of the liquid level.

Next, please refer to FIG. 2 . FIG. 2 is a schematic diagram of a skewed optical sensing drainage device according to the present invention. As shown in Figure 2, if the liquid box 20 is skewed, the liquid level of the liquid S in the liquid box 20 will still remain horizontal, so the float 30 will still float on the liquid surface, and the light L emitted by the emitting reflection unit 31 will be Because the liquid box 20 is skewed, the guide tube 21 is also skewed, so that the light L cannot be received and sent by the optical sensor 10. If the liquid box 20 is received by the emitting unit 11, it can be known that the liquid box 20 is not in a horizontal state. Similarly, it can also be said that the light L emitted by the receiving and emitting unit 11 is not reflected back by the emitting and reflecting unit 31 because the liquid box 20 is skewed, and it is determined that the liquid Cassette 20 is not in a horizontal state.

Next, please refer to FIG. 3 . FIG. 3 is a detailed schematic diagram of the guide tube of the optical sensing drainage device according to the present invention. As shown in Figure 3, the shape design of the guide port 22 and the guide wall 23 in the guide pipe 21 is based on the shape of the float 30, so that the float 30 rises to a certain level with the liquid level of the liquid S in the liquid box 20. When the level is high, the floating ball 30, the guide port 22, and the guide wall 23 can be completely close and bonded, so that the liquid S in the liquid box 20 will not flow out of the guide port 22, especially in the liquid box 20. When the inner liquid S is full, it will not overflow to the outside of the guide port 22 .

Specifically, the liquid S in the liquid box 20 is prevented from contacting the optical sensor 10 or flowing out to the suction port 24 .

Please refer to FIG. 4 for an application example of the optical sensing drainage device of the present invention. As shown in FIG. 20 has a guide pipe 21, a guide port 22, a guide wall 23, an air inlet 24, an air channel 25 and an opening P, and the optical sensor 10 is arranged in the main frame 40, and the main frame 40 also has an optical sensor 10 Connected transmission unit 41.

Specifically, the liquid level of the liquid S in the liquid box 20 is calculated through the emission and reception of light L between the float 30 and the optical sensor 10 .

For example, the time between the emission and reflection unit 31 of the floating ball 30 emitting the light L and being received by the optical sensor 10 is calculated by the optical sensor 10 to know the current height of the liquid level in the liquid box 20. Similarly, It can also be that the receiving and emitting unit 11 of the optical sensor 10 emits the light L, and after being reflected by the floating ball 30 and emitting the reflecting unit 31, it returns to the receiving and emitting unit 11, and the optical sensor 10 calculates the light L emitted to the receiving and emitting unit. The current height of the liquid level can be obtained according to the collection time, and then the liquid level is calculated to calculate how much liquid is stored in the liquid box 20.

Specifically, the transmission unit 41 in the host computer 40 is electrically connected to the optical sensor 10 and an external monitoring device (not shown in the figure), and whenever the optical sensor 10 calculates the height or amount of liquid, the information will be transferred It is sent to the monitoring device by the transmission unit 41, and the remaining capacity of the liquid box 20 can be grasped at any time.

In particular, when the optical sensor 10 does not receive the signal of the light L, it means that the liquid cartridge 20 is in a skewed state, and the warning signal will be transmitted to the monitoring device through the transmission unit 41, and the monitoring device will issue a warning, or Also can send warning by main frame 40, react immediately.

Specifically, the warning can be in the form of sound, light, vibration or other forms.

Finally, the technical characteristics of the present invention and the technical effects that can be achieved are summarized as follows:

First, with the optical sensing and drainage device of the present invention, the optical sensor and float design can simultaneously measure the liquid level and monitor the level status.

Second, with the optical sensing drainage device of the present invention, the guide tube and the air suction port are designed to avoid splashing, which may affect the misjudgment of the liquid level.

Third, with the optical sensing and drainage device of the present invention, the design of the guide wall of the floating ball and the guide tube can block the guide port of the guide tube to prevent liquid from flowing into the host.

Fourth, with the optical sensing and drainage device of the present invention, combined with the data transmission of the transmission unit, a warning can be issued to notify the medical staff.

The above is to illustrate the implementation of the present invention through specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all other equivalent changes or modifications that do not deviate from the spirit disclosed in the present invention should be included in the scope of the following patents Inside.

10: Optical sensor

11: Receiving and transmitting unit

20: Liquid box

21: Guiding tube

22: Guide port

23: guide wall

24: exhaust port

25: Air channel

30: Float

31: launch reflection unit

L: light

P: opening

S: liquid

Claims (6)

An optical sensing drainage device, which includes: an optical sensor with a receiving and emitting unit; a liquid box with a guide tube, a guide port, a guide wall and an air suction port, the guide tube One end of the receiving and transmitting unit is connected, and the guiding tube further has at least one air channel, which is arranged on one side of the guiding tube and is located below the guiding wall; and a floating ball has a transmitting and reflecting unit, It is arranged at the other end of the guide tube, and the density of the floating ball is lower than the density of the liquid in the liquid box and floats on the surface of the liquid; wherein, the guide port is composed of the guide wall, and the guide wall The shape of the floating ball corresponds to the shape of the floating ball. When the guide wall is attached to the floating ball, the liquid in the liquid box cannot pass through the guiding port, and the emitting reflection unit emits a light through the guiding tube and The pilot port is received by the receiving and transmitting unit. The optical sensing drainage device as claimed in claim 1, wherein the air suction port is arranged above the guiding port in the guiding tube and is located at one end of the optical sensor. The optical sensing drainage device as claimed in claim 1, wherein the position of the floating ball is determined according to the amount of liquid in the liquid box, and moves up and down as the liquid level rises and falls. The optical sensing drainage device as described in claim 1, wherein if the receiving and emitting unit receives the light, it is determined that the liquid box is in a horizontal state, and if the receiving and emitting unit cannot receive the light, it is determined that the The liquid box is non-horizontal. The optical sensing drainage device as described in claim 1, further comprising a host, the optical sensor is arranged in the host, and the host also has a transmission unit, the transmission unit and the optical sensor electrical connection. The optical sensing drainage device as described in Claim 5, wherein the transmission unit is connected to a monitoring device, and when the optical sensor does not receive the light, the monitoring device issues an alarm.

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