WO2022014990A1

WO2022014990A1 - Bladder monitoring device and urine discharge system using same

Info

Publication number: WO2022014990A1
Application number: PCT/KR2021/008897
Authority: WO
Inventors: 김세환
Original assignee: 단국대학교 천안캠퍼스 산학협력단
Priority date: 2020-07-14
Filing date: 2021-07-12
Publication date: 2022-01-20

Abstract

A bladder monitoring device and a urine discharge system using same are disclosed. The bladder monitoring device comprises: a light emitting unit for emitting near-infrared (NIR) rays having multiple wavelengths to the bladder; a light detecting unit for measuring reflection signal intensity for each wavelength of optical signals reflected and diffused from the bladder and configured to comprise a plurality of optical sensors sequentially disposed away from the light emitting unit; and a control unit for calculating reflectance by using the measured reflection signal intensity, calculating light absorbance by using the calculated reflectance, and calculating a water content in the bladder by using the calculated light absorbance, thereby calculating the amount of urine.

Description

Bladder monitoring device and urine drainage system using same

The present invention relates to a bladder monitoring device for monitoring the condition of the bladder and measuring the amount of urine in the bladder, and a urine discharge system using the same for measuring the amount of urine in the bladder.

For patients who do not feel a micturition desire due to spinal cord injury or spinal cord surgery, it is difficult to determine the timing of urination and catheterization by themselves. It is very important to carry out In addition, when Alzheimer's or Parkinson's symptoms worsen, it becomes difficult for the patient to determine the timing of urination and catheterization. If an appropriate amount of urination and catheterization is not performed at an appropriate frequency and time, from mild bladder dysfunction such as frequent urination, urinary incontinence, and urinary retention, to complications such as urinary tract infection, hydronephrosis, and vesicoureteral reflux.

Conventionally, after a patient visits a hospital, it is possible to measure the bladder volume and urine volume of the patient using ultrasound equipment, but it is difficult to select an accurate location of the ultrasound probe and the price is high, so self-monitoring It was not suitable for use in

Also, conventionally, there is a method of detecting a function related to the bladder based on bioimpedance information, but this was a method through an implantable medical device requiring a separate procedure, and was performed through Electrical Impedance Tomography (EIT). Because it required expensive equipment to analyze the impedance distribution image, it was difficult to be used for self-monitoring purposes.

Therefore, there is a need for a system that can be used for self-monitoring purposes and that discharges urine at an appropriate time.

An object of the present invention is to provide a bladder monitoring device that measures the amount of urine in the bladder so that a patient who does not feel the need to urinate monitors the amount of urine stored in his/her bladder, and monitors the condition of the bladder by measuring the blood flow in the bladder.

Another object of the present invention is to provide a urine drainage system that allows the patient to discharge the urine filled in the bladder of the patient at an appropriate time by measuring the amount of urine.

According to one aspect of the present invention, a bladder monitoring device is disclosed.

The bladder monitoring device according to an embodiment of the present invention measures the reflected signal intensity for each wavelength of the light irradiator for irradiating multi-wavelength near infrared (NIR) to the bladder, and the optical signal reflected and diffused from the bladder, Calculate reflectance using a photodetector including a plurality of photosensors disposed sequentially away from the light irradiator and the measured reflected signal intensity, and calculate the light absorbance using the calculated reflectance, , by calculating the moisture content in the bladder using the calculated light absorption, and a control unit for calculating the amount of urine.

According to another aspect of the present invention, a bladder monitoring apparatus attached to a user's body and a bladder monitoring method performed by a user terminal are disclosed.

In the bladder monitoring method according to an embodiment of the present invention, the bladder monitoring device periodically measures the amount of urine in the bladder and transmits the measured urine amount data to the user terminal, so that the user monitors the amount of urine, the user terminal Outputting a ratio of the amount of urine to the bladder capacity, when the ratio exceeds a threshold, outputting, by the user terminal, an alarm signal so that the user performs urination, and the ratio is reduced to less than the threshold according to the urination and stopping, by the user terminal, from outputting the alarm signal.

According to another aspect of the present invention, a urine excretion system is disclosed.

A urine discharge system according to an embodiment of the present invention is inserted into the urethra to measure the urine volume in the bladder and a urine drainer for discharging the urine filled in the bladder to the outside, and when the measured urine volume exceeds a preset threshold, the A bladder monitoring device for transmitting a driving command to the urine ejector to drive the urine ejector, wherein the bladder monitoring device includes a light irradiator for irradiating multi-wavelength Near Infrared (NIR) to the bladder, reflected from the bladder and measuring the reflected signal intensity for each wavelength of the diffused optical signal, and calculating the reflectance using a photodetector including a plurality of photosensors disposed sequentially away from the light irradiator and the measured reflected signal intensity and a control unit for calculating the amount of urine by calculating the light absorbance using the calculated reflectivity and calculating the moisture content in the bladder using the calculated light absorbance.

The bladder monitoring device according to an embodiment of the present invention measures the amount of urine in the bladder so that the patient who does not feel the need to urinate monitors the amount of urine stored in his/her bladder, thereby conveniently monitoring the amount of urine in the bladder even if the patient does not feel the urge to urinate. You may be asked to urinate at an appropriate time.

In addition, by measuring the blood flow of the bladder and monitoring the condition of the bladder, it is possible to diagnose the health condition of the bladder.

In addition, the urine discharge system according to an embodiment of the present invention can discharge the urine filled in the bladder of the patient at an appropriate time through measurement of the amount of urine even if the patient does not feel the urge to urinate.

1 is a view schematically illustrating the configuration of a urine discharge system according to an embodiment of the present invention.

2 is a view schematically illustrating the configuration of a bladder monitoring device according to an embodiment of the present invention.

3 to 6 are views for explaining a bladder monitoring device according to an embodiment of the present invention.

7 and 8 are views showing an example of implementing a bladder monitoring device according to an embodiment of the present invention.

9 is a view showing an example of use of the bladder monitoring device implemented as in FIG. 7 or FIG. 8 .

10 is a diagram schematically illustrating the configuration of a system in which a bladder monitoring method according to an embodiment of the present invention is performed.

11 is a flowchart illustrating a bladder monitoring method according to an embodiment of the present invention.

12 is a view for explaining a bladder monitoring method according to an embodiment of the present invention.

13 and 14 are views exemplarily showing a urine discharger according to an embodiment of the present invention.

As used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "consisting of" or "comprising" should not be construed as necessarily including all of the various components or various steps described in the specification, some of which components or some steps are It should be construed that it may not include, or may further include additional components or steps. In addition, terms such as "...unit" and "module" described in the specification mean a unit that processes at least one function or operation, which may be implemented as hardware or software, or a combination of hardware and software. .

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 1 , a urine discharge system according to an embodiment of the present invention may include a bladder monitoring device 100 , a user terminal 200 , and a urine discharger 300 .

The bladder monitoring apparatus 100 measures the amount of urine in the bladder at a location where the bladder is located in the stomach of the patient, and transmits the urine amount measurement information to the user terminal 200 and the urine ejector 300 .

For example, when the amount of urine in the patient's bladder exceeds a preset threshold, the bladder monitoring apparatus 100 may transmit a driving command to the urine ejector 300 to drive the urine ejector 300 .

The user terminal 200 is a terminal of a patient that measures the amount of urine in the bladder, and receives urine amount measurement information transmitted from the bladder monitoring device 100 in real time, and outputs the received urine amount measurement information together with an alarm signal to notify the patient. .

For example, the user terminal 200 may be equipped with an application for managing and controlling the bladder monitoring apparatus 100 and the urine ejector 300 . Therefore, the user terminal 200 checks the urine volume measurement information received from the bladder monitoring device 100, and when the amount of urine in the patient's bladder exceeds a preset threshold, a message and an alarm signal notifying the patient that urination should be performed can be printed out. In addition, when the amount of urine in the patient's bladder exceeds a preset threshold according to the setting, the user terminal 200 outputs a message and an alarm signal as well as a driving command to the urine ejector 300 to drive the urine ejector 300 can also be sent.

Urine ejector 300 is inserted into the urethra of the patient to discharge the urine filled in the bladder to the outside.

For example, the urine ejector 300 may be driven by receiving a driving command directly from a patient through a predetermined input unit, or by receiving a driving command from the bladder monitoring apparatus 100 or the user terminal 200 . To this end, the urine ejector 300 may include a communication unit (not shown) that receives a driving command from the bladder monitoring device 100 or the user terminal 200 .

The bladder monitoring apparatus 100 and the urine discharger 300 of the urine discharge system according to the embodiment of the present invention will be described later in detail with reference to FIGS. 2 to 14 .

2 is a diagram schematically illustrating the configuration of a bladder monitoring device according to an embodiment of the present invention, and FIGS. 3 to 6 are diagrams for explaining a bladder monitoring device according to an embodiment of the present invention. Hereinafter, a bladder monitoring apparatus according to an embodiment of the present invention will be described with reference to FIG. 2 , with reference to FIGS. 3 to 6 .

Referring to FIG. 2 , the bladder monitoring apparatus 100 according to an embodiment of the present invention includes a light irradiation unit 110 , a light detection unit 120 , an output unit 130 , an input unit 140 , a communication unit 150 , and a control unit. 160 may be included.

The light irradiator 110 irradiates a multi-wavelength near infrared (NIR) from a portion where the bladder is located in the patient's stomach to the bladder. In this case, the light irradiation unit 110 may irradiate near-infrared rays having a preset irradiation signal intensity for each wavelength according to the control of the controller 160 .

For example, the light irradiator 110 may be configured to include one light source 111 as shown in FIG. 2 , and the light source 111 is a Laser Diode (LD) or Light-Emitting Diode (LED). Alternatively, it may be composed of an organic light-emitting diode (OLED).

The photodetector 120 measures the signal intensity for each wavelength of an optical signal in which multi-wavelength near-infrared rays irradiated to the bladder by the light irradiator 110 are reflected and diffused from the bladder.

For example, as shown in FIG. 2 , the photodetector 120 may be configured to include a plurality of photosensors 121 that are sequentially disposed away from the light source 111 , and the photosensors 121 include It may be composed of a photodiode (PD), an IR enhanced PD, an avalanche photodiode (APD), or a CCD or CMOS.

The output unit 130 outputs an audible or visual signal. For example, the output unit 130 may include a status indicator lamp and/or a buzzer for displaying operating states such as driving start, measurement, and measurement completion of the bladder monitoring apparatus 100 according to an embodiment of the present invention. have.

In addition, the output unit 130 may further include a display module (not shown) for displaying and outputting information received or processed by the bladder monitoring apparatus 100 according to an embodiment of the present invention. That is, the display module may output an analysis result (such as the amount of urine in the bladder) of the control unit 160 , which will be described later, on the diffuse optics detected by the light detection unit 120 .

For example, the display module may be implemented as a liquid crystal display or the like. In addition, when the display module and the sensor sensing a touch operation form a layered structure (ie, a touch screen), the display module may be used as an input device in addition to an output device. Hereinafter, when a touch screen is used as a display module, a sensor for detecting a touch operation will be referred to as an input unit 140 to be described later.

The input unit 140 is a user interface for receiving various commands from a user, and there is no particular limitation in its implementation method. For example, the input unit 140 may include a plurality of manipulation units, and these manipulation units may be manufactured as a key pad, a touch pad (static pressure/capacitance), a wheel key, a jog switch, or the like.

The communication unit 150 performs wired/wireless communication with the user terminal.

For example, the communication unit 150 may include a USB (Universal Serial Bus) module, a Bluetooth module, a Wi-Fi module, etc., and short-range wireless communication such as Bluetooth or Wi-Fi or Data can be transmitted to a user terminal such as a smart phone or a desktop PC using short-distance wired communication such as USB.

The controller 160 basically controls the overall operation of the bladder monitoring apparatus 100 according to the embodiment of the present invention.

That is, the control unit 160 controls the light irradiator 110 and the light detection unit 120 to irradiate multi-wavelength near-infrared rays to the bladder region, respectively, and measure the reflected signal intensity for each wavelength of the optical signal reflected and diffused from the bladder region. can do.

In addition, the controller 160 measures the amount of urine in the bladder by measuring the moisture content in the bladder through the analysis of the detected diffuse optics using the signal intensity for each wavelength of the measured optical signal.

That is, the controller 160 calculates a reflectance by using the measured reflected signal intensity for each wavelength of the reflected and diffused optical signal, calculates the light absorbance for each wavelength using the calculated reflectance, and calculates the calculated wavelength The water content in the bladder can be calculated using the light absorbance of each star.

In this case, the controller 160 may calculate the blood flow along with the moisture content of the bladder by using the light absorption for each wavelength.

3 and 4, in the near-infrared band, collagen, body water (water), fat (lipid), deoxidized hemoglobin (HHb), oxidized hemoglobin (O2Hb) of 85% or more of biological tissue components such as light There is an absorption peak. Here, deoxidized hemoglobin (HHb) and oxidized hemoglobin (O2Hb) are blood flow indicators. Therefore, it is possible to measure the amount of urine filled in the bladder by measuring the moisture content in the bladder, and the blood flow in the bladder can be calculated by measuring the amounts of deoxidized hemoglobin (HHb) and oxidized hemoglobin (O2Hb) in the bladder. The wavelength at which the light absorption peak of body water exists is 960 nm, 1180 nm, 1440 nm, and the like.

For example, since the light absorption peak of water exists at wavelengths such as 960 nm, 1180 nm, and 1440 nm among the near-infrared wavelengths, as shown in FIG. The light irradiator 110 may be controlled to irradiate.

In order to measure the moisture content in the bladder, the controller 160 first calculates the ratio of the reflected signal intensity of the light signal reflected and diffused from the bladder part to the irradiation signal intensity of the near-infrared irradiated by the light irradiator 110, reflectivity can be calculated.

And, the control unit 160 may calculate the light absorption for each wavelength using the following equation.

[Equation 1]

Here, R(ρ) is the reflectance, ρ=(x, y), a' is the albedo indicating the reflectance at the surface, a' = μ' _s / (μ _a + μ' _s ), and , μ _a is the light absorption, μ' _s is the light output, z ₀ is the distance from the region of interest (ROI) to the measurement surface (the skin surface of the bladder region), z ₀ = (μ _a + μ' _s ) ^-1 , μ _eff is the effective attenuation coefficient, μ _eff = [3 μ _a (μ _a + μ' _s )] ^1/2 , r ₁ is positive from the region of interest As the distance to the positive impulse source of , r ₁ = [(z - z ₀ ) ² + ρ ² ] ^1/2 , and z _b is the core of the Extrapolate boundary condition, which assumes that the flux of photons disappears. The value of the virtual boundary, r ₂ is the distance from the region of interest to the negative impulse source, and r ₂ = [(z + z ₀ + 2z _b ) ² + ρ ² ] ^1/2 .

[Equation 2]

Here, R(ρ) is the reflectivity, R _exp (ρ) is the experimental value (experimental R) of the reflectance measured in the physiological tissue using the experimental system, and α is the system parameter set in the experimental system.

In Equations 1 and 2, the light absorption μ _a , the light output μ′ _s and the system parameter α are unknown. Since at least three equations are required to calculate the solutions of these three unknowns, one light source 111 and at least three photosensors 121 are required, respectively, as shown in FIG. 5 . That is, using the reflected signal intensity measured at three points, from Equations 1 and 2, _{three equations for the three unknowns of the light absorption μ a} , the light output μ' _s and the system parameter α will be generated. and values of the light absorption μ _a , the light output μ′ _s and the system parameter α can be calculated from the generated three equations.

Then, the control unit 160 may calculate the moisture content of the first measurement region 10 using the following equation from the calculated light absorption.

[Equation 3]

here,

,

and

is the extinction rate for each wavelength of oxidized hemoglobin (O2Hb), deoxidized hemoglobin (HHb), body water (water) and lipid (lipid), [O2Hb], [HHb], [water] and [lipid] ] is the content of oxidized hemoglobin (O2Hb), deoxidized hemoglobin (HHb), body water (water) and fat (lipid), respectively,

is the light absorption by wavelength.

In Equation 3, the contents of oxidized hemoglobin (O2Hb), deoxidized hemoglobin (HHb), body water (water) and fat (lipid) can be calculated using the least squares method, and oxidized hemoglobin (O2Hb) and deoxidized hemoglobin ( The content of HHb) may be calculated as an absolute value in mol unit, and the content of body water (water) and fat (lipid) may be calculated as a relative value in % unit.

According to an embodiment of the present invention, the light irradiation unit 110 and the light detection unit 120 may be configured to include one light source 111 and at least five photosensors 121 , respectively.

That is, referring to FIG. 6 , since the bladder 30 is located in the visceral layer 12 under the skin layer 11 , it is sufficiently far away from the light source 111 to obtain the optical signal reflected and diffused from the bladder 30 . Additional photosensors 121 such as R ₄ and R _{5 are required.} Therefore, as described above, since at least three photosensors 121 are required to calculate the moisture content in the bladder, as shown in FIG. 6 , the photodetector 120 includes five (R ₁ , R ₂ , R ). ₃ , R ₄ and R ₅ ) of the photosensor 121 may be configured.

Therefore, the control unit 160 calculates the first moisture content of the first measurement region 10 calculated using the optical sensor 121 _{of R 1} , R _{2 ,} and R ₃ _{, and R 3} , R ₄ and R _{5 .} The second moisture content of the second measurement region 20 calculated using the optical sensor 121 of .

On the other hand, the amount of oxidized hemoglobin (O2Hb) and deoxidized hemoglobin (HHb) calculated together with the water content is used for monitoring the condition of the bladder by observing changes in blood flow, or accumulated as big data for a long period of time, and personal bladder through big data analysis can be used for state analysis.

7 and 8 are diagrams showing an example of implementing a bladder monitoring device according to an embodiment of the present invention, and FIG. 9 is a diagram showing an example of using the bladder monitoring device implemented as in FIG. 7 or 8 .

Referring to FIG. 7 , the bladder monitoring apparatus 100 according to an embodiment of the present invention is a measurement in which one light source 111 and five optical sensors 121 arranged to be sequentially away from the light source 111 are mounted. It may be implemented by being composed of a board for control 160 and a board for control 170 on which a plurality of electronic components 175 are mounted.

That is, the light irradiation unit 110 and the light detection unit 120 described above are implemented in the measurement substrate 160 , and the light irradiation unit 110 using a plurality of electronic components 175 mounted on the control substrate 170 . ) and a configuration other than the photodetector 120 , that is, the output unit 130 , the input unit 140 , the communication unit 150 , the control unit 160 , and the like may be implemented. In addition, a power interface connected to a battery module for supplying power may be implemented on the control board 170 .

Here, the measurement board 160 and the control board 170 are provided with

connectors

161 and 171 , respectively, and may be electrically connected through the provided

connectors

161 and 171 .

The measurement substrate 160 irradiates light to the bladder region and directly contacts the patient's skin in order to detect the reflected light, and thus may be formed of a flexible material.

The bladder monitoring apparatus 100 implemented in this way may have a flexible patch shape as a whole, and may be operated by being attached to the user's body by providing a separate attachment means.

Referring to FIG. 8 , the bladder monitoring device 100 is coupled to both sides of the body 180 and the body 180 to which the light source module 185 and the operation button 181 are mounted, and the optical sensor array modules 197 and 198 ) and a pair of

pads

191 and 192 to which the

adhesive parts

195 and 196 are mounted can be implemented.

That is, in the main body 180, the above-described light irradiation unit 110, output unit 130, input unit 140, communication unit 150, control unit 160, etc. may be implemented, and a rechargeable battery for power supply. can be installed. The operation button 181 mounted on the main body 180 may be one of the input units 140 . In addition, the plurality of light sources 111 constituting the light source module 185 may generate at least four multi-wavelength lights in a band of 600 to 1100 nm.

The

photosensor array modules

197 and 198 are mounted on the

pads

191 and 192. As shown in FIG. 8, the

photosensor array modules

197 and 198 have a plurality of photosensors 121 arranged in a matrix form. can be formed.

In addition,

adhesive parts

195 and 196 are mounted on the

pads

191 and 192 , and the

adhesive parts

195 and 196 are attached to the skin and serve to attach the bladder monitoring device 100 to the user's body.

The body 180 and the

pads

191 and 192 may be configured to be detachably attached to each other by providing separate attachment and detachment means. In addition, the

pads

191 and 192 are manufactured for one-time use and can be used and thrown away by the user. On the other hand, the main body 180 can be continuously used by charging the battery. That is, the

pads

191 and 192 may be separated from the body 180 and discarded after use.

As shown in FIG. 9 , the bladder monitoring device 100 may be attached to a portion of the user's stomach where the bladder 35 is located, and may measure the amount of urine in the bladder 35 as described above.

10 is a diagram schematically illustrating the configuration of a system in which a bladder monitoring method according to an embodiment of the present invention is performed, FIG. 11 is a flowchart showing a bladder monitoring method according to an embodiment of the present invention, and FIG. It is a diagram for explaining a bladder monitoring method according to an embodiment of the present invention. Hereinafter, a bladder monitoring method according to an embodiment of the present invention will be described with reference to FIGS. 10 to 12 .

First, referring to FIG. 10 , the system may include a bladder monitoring device 100 , a user terminal 200 , and a bladder monitoring server 400 .

Referring to FIG. 11 , in step S1010 , the bladder monitoring apparatus 100 periodically measures the amount of urine in the bladder and transmits the measured urine amount data to the user terminal 200 .

That is, as described above, the bladder monitoring apparatus 100 irradiates multi-wavelength near-infrared rays to the bladder, measures the reflected signal intensity for each wavelength of the optical signal reflected and diffused from the bladder according to the near-infrared irradiation, and the measured reflected signal The reflectance may be calculated using the intensity, the light absorbance may be calculated using the calculated reflectivity, and the moisture content in the bladder may be calculated as urine volume using the calculated light absorbance.

In step S1020, the user terminal 200 may visualize and output the ratio (%) of the urine volume to the bladder capacity in text, animation, etc. as shown in FIG. 9 so that the user monitors the urine volume according to the reception of the urine volume data. have.

In step S1030, the user terminal 200 determines whether the ratio (%) of the urine volume to the bladder capacity exceeds a threshold.

In step S1040, when the ratio (%) of the urine volume to the bladder capacity exceeds the threshold, the user terminal 200 outputs a visual and audible alarm signal.

At this time, when the user terminal 200 is interlocked with a wearable device 210 such as a smart watch worn by the user, as shown in FIG. command can be sent. Accordingly, the wearable device 210 may output an alarm signal through vibration or sound and may output a message indicating that the amount of urine exceeds a threshold.

The user can urinate according to the output of the alarm signal, and when the ratio of the urine volume to the bladder capacity according to urination decreases to less than a threshold value, the user terminal 200 can stop the output of the alarm signal, and the wearable The device 210 may also transmit an alarm stop command.

In the above-described step S1020, the bladder monitoring device 100 not only calculates the amount of urine in the bladder, but also deoxidized hemoglobin (HHb) and oxidized hemoglobin (O2Hb) in the bladder by using the optical signal reflected from the bladder according to the near-infrared irradiation. By measuring the amount of blood flow can be calculated.

That is, the bladder monitoring apparatus 100 may transmit not only urine volume data but also blood flow data to the user terminal 200 , and the user terminal 200 outputs a change in blood flow so that the user monitors blood flow according to the reception of the blood flow data. can do.

For example, the user terminal 200 may indicate the blood flow change in a blood flow change graph as shown in FIG. 12 .

The graph shown in FIG. 12 shows changes in the amounts of deoxidized hemoglobin (HHb) and oxidized hemoglobin (O 2 Hb) according to age. That is, Fig. 12 (a) shows the change in blood flow measured when the urine is discharged from a 7-year-old, (b) of FIG. 12 (b) is a 31-year-old male, and (c) of FIG. 12 is a 43-year-old female. As shown in FIG. 12 , it can be seen that as the age increases, the movement of blood flow in the bladder during urine discharge is weaker.

However, bladder monitoring through observation of changes in blood flow as described above can simply confirm a difference according to age or a normal level of blood flow, and cannot accurately diagnose an individual's bladder condition.

Accordingly, in order to more accurately monitor an individual's bladder condition, it is necessary to accumulate blood flow data and urine volume data periodically measured using the bladder monitoring apparatus 100 .

That is, according to an embodiment of the present invention, the user terminal 200 may be equipped with a bladder monitoring application for performing the above-described bladder monitoring method. Thus, the user terminal 200 may generate personalized data by driving the bladder monitoring application to perform the bladder monitoring method, while accumulating blood flow data and urine volume data of the user's bladder of the user terminal 200 . Here, the personalized data may be referred to as small data. Using this small data, personalized bladder diagnosis and treatment can be made.

Again, referring to FIG. 10 , the bladder monitoring server 400 may receive the user's small data from the user terminal 200 to generate big data. That is, the bladder monitoring server 400 may generate big data on the blood flow in the bladder by accumulating small data of several users from the plurality of user terminals 200 .

13 and 14 , the urine discharger 300 according to an embodiment of the present invention may be configured to include a miniature magnetic field valve pump 310 and a remote controller 320 .

The magnetic field valve pump 310 is inserted into the urethra of the patient, and is driven when receiving a drive command signal wirelessly from the remote controller 320 to discharge urine filled in the patient's bladder to the outside.

The remote controller 320 includes a button for the user to input a driving command, and when receiving a driving command through the button, wirelessly transmits a driving command signal to the magnetic field valve pump 310 .

For example, the remote controller 320 generates a magnetic field when a button is pressed, and the generated magnetic field is applied to the magnetic field valve pump 310 , thereby activating and driving the magnetic field valve pump 310 .

For example, the remote controller 320 may receive a driving command from the bladder monitoring device 100 or the user terminal 200 having a communication function, and may be driven from the bladder monitoring device 100 or the user terminal 200 . When the command is received, a driving command signal may be transmitted to the magnetic field valve pump 310 .

The above-described embodiments of the present invention have been disclosed for purposes of illustration, and various modifications, changes, and additions will be possible within the spirit and scope of the present invention by those skilled in the art having ordinary knowledge of the present invention, and such modifications, changes and additions should be considered as belonging to the following claims.

Claims

A bladder monitoring device comprising:

a light irradiator for irradiating multi-wavelength near infrared (NIR) to the bladder;

a photodetector for measuring the reflected signal intensity for each wavelength of the optical signal reflected and diffused from the bladder, the photodetector including a plurality of photosensors disposed to be sequentially away from the light irradiator; and

By calculating the reflectance (Reflectance) using the measured reflected signal strength, calculating the light absorbance using the calculated reflectance, and calculating the moisture content in the bladder using the calculated light absorbance, the Bladder monitoring device comprising a control unit for calculating the amount of urine.
According to claim 1,

The control unit bladder monitoring device, characterized in that for calculating the ratio of the reflected signal strength to the irradiation signal strength of the near-infrared light as the reflectivity.
According to claim 1,

The controller is a bladder monitoring device, characterized in that for calculating the light absorption by using the following equation.

Here, R(ρ) is the reflectance, ρ=(x, y), a' is the albedo indicating the reflectance at the surface, a' = μ' s / (μ a + μ' s ), and , μ a is the light absorption, μ' s is the light output, z 0 is the distance from the region of interest (ROI) to the measurement surface (the skin surface of the bladder region), z 0 = (μ a + μ' s ) -1 , μ eff is the effective attenuation coefficient, μ eff = [3 μ a (μ a + μ' s )] 1/2 , r 1 is positive from the region of interest As the distance to the positive impulse source of , r 1 = [(z - z 0 ) 2 + ρ 2 ] 1/2 , and z b is the core of the Extrapolate boundary condition, which assumes that the flux of photons disappears. is the value of the virtual boundary, r 2 is the distance from the region of interest to the negative impulse source, r 2 = [(z + z 0 + 2z b ) 2 + ρ 2 ] 1/2 , R exp (ρ) is the experimental value (experimental R) of reflectance measured in physiological tissues using the experimental system, and α is the system parameter set in the experimental system.
4. The method of claim 3,

The light absorption μ a , the light emission μ' s and the system parameter α are unknown,

The photodetector,

and at least three optical sensors to generate three equations for the calculation of the solution of the unknown.
According to claim 1,

The control unit is a bladder monitoring device, characterized in that for calculating the moisture content by using the following equation from the calculated light absorption.

here,
,
,
and
is the extinction rate for each wavelength of oxidized hemoglobin (O2Hb), deoxidized hemoglobin (HHb), body water (water) and lipid (lipid), [O2Hb], [HHb], [water] and [lipid] ] is the content of oxidized hemoglobin (O2Hb), deoxidized hemoglobin (HHb), body water (water) and fat (lipid), respectively,
is the light absorption by wavelength
6. The method of claim 5,

The photodetector includes first to fifth photosensors disposed sequentially away from the light irradiator,

The control unit is

The first moisture content of the first measurement region calculated by using the first to third optical sensors is calculated, and the second moisture content of the second measurement region calculated by using the third to fifth optical sensors is calculated. and subtracting the first moisture content from the second moisture content to calculate the moisture content in the bladder.
According to claim 1,

The bladder monitoring device periodically measures the amount of urine and transmits the data of the amount of urine to the user terminal,

The user terminal outputs a ratio of the urine volume to the bladder capacity so that the user can monitor the urine volume, and when the ratio exceeds a threshold, an alarm signal is output to allow the user to urinate.
According to claim 1,

The bladder monitoring device is manufactured in the form of a flexible patch, and is attached to a portion of the patient's stomach where the bladder is located to measure the amount of urine.
According to claim 1,

The bladder monitoring device,

a body mounted with a light source module composed of a light source of the light irradiation unit; and

It is coupled to both sides of the main body, and the plurality of photosensors are arranged in a matrix form, and it consists of an optical sensor array module and a pair of pads equipped with an adhesive part attached to the skin,

The main body bladder monitoring device, characterized in that it comprises the control unit.
A bladder monitoring device attached to a user's body and a bladder monitoring method performed by a user terminal, the method comprising:

The bladder monitoring device periodically measuring the amount of urine in the bladder and transmitting the measured urine amount data to the user terminal;

outputting, by the user terminal, a ratio of the amount of urine to the bladder capacity so that the user monitors the amount of urine;

outputting, by the user terminal, an alarm signal so that the user performs urination when the ratio exceeds a threshold; and

and when the ratio decreases to less than a threshold according to the urination, stopping, by the user terminal, the output of the alarm signal.
11. The method of claim 10,

Transmitting the urine volume data to the user terminal comprises:

irradiating, by the bladder monitoring device, a multi-wavelength near infrared (NIR) to the bladder;

measuring, by the bladder monitoring device, the reflected signal intensity for each wavelength of the optical signal reflected and diffused from the bladder;

calculating, by the bladder monitoring device, reflectance using the measured reflected signal strength;

calculating, by the bladder monitoring device, light absorption using the calculated reflectivity; and

and calculating, by the bladder monitoring device, the moisture content in the bladder using the calculated light absorbance, thereby calculating the urine volume.
In the urine excretion system,

Urine ejector inserted into the urethra to discharge the urine filled in the bladder to the outside; and

and a bladder monitoring device that measures the amount of urine in the bladder and transmits a driving command to the urine ejector to drive the urine ejector when the measured amount of urine exceeds a preset threshold,

The bladder monitoring device,

a light irradiator for irradiating multi-wavelength near infrared (NIR) to the bladder;

a photodetector for measuring the reflected signal intensity for each wavelength of the optical signal reflected and diffused from the bladder, the photodetector including a plurality of photosensors sequentially disposed away from the light irradiator; and

By calculating the reflectance (Reflectance) using the measured reflected signal strength, calculating the light absorbance using the calculated reflectance, and calculating the moisture content in the bladder using the calculated light absorbance, the Urine discharge system, characterized in that it comprises a control unit for calculating the amount of urine.
13. The method of claim 12,

The urine excretion system,

Receives urine volume measurement information transmitted from the bladder monitoring device, and when the measured urine volume exceeds a preset threshold, outputs a message and an alarm signal informing that urination should be performed, and drives the urine ejector Urine discharge system, characterized in that it further comprises a user terminal for transmitting a driving command to the ejector.
13. The method of claim 12,

The urine ejector,

a magnetic field valve pump inserted into the urethra and driven when a drive command signal is received to discharge urine filled in the bladder to the outside; and

Including a remote controller for transmitting the drive command signal to the magnetic field valve pump,

The remote controller is

A button for a user to input a driving command is provided, and when the driving command is received through the button, the driving command signal is generated, or

Urine discharge system, characterized in that generating the drive command signal when receiving the drive command from the bladder monitoring device or the user terminal.