KR20230116370A - Portable uroflowmetry apparatus using gyro sensor - Google Patents

Abstract

The present invention relates to a portable urine test device using a gyro sensor. A portable urinary flow test device using a gyro sensor according to the present invention includes a first container; a second container inserted into the first container; a sensor unit installed in the first container; a communication unit for transmitting the value sensed by the sensor unit to an external terminal; and a power supply unit supplying power to the sensor unit and the communication unit, wherein the sensor unit includes a load cell for measuring a weight of urine contained in the second container, a gyro sensor for measuring a change in orientation of the first container, and the gyro. and a control unit correcting the measured value of the load cell based on the measured value of the sensor.

Description

Portable UROFLOWMETRY APPARATUS USING GYRO SENSOR

The present invention relates to a portable uroflowmetry device using a gyro sensor, and more particularly, to a handheld device that is easy to carry, can be held in a hand, and can derive quantified results by examining uroflowmetry. (Hand-held) type portable urine test device.

The urinary tract refers to the entire passage through which urine is produced and discharged out of the body, and usually includes the kidney, ureter, bladder, and urethra. In addition, the lower urinary tract refers to biological structures and organs below the bladder through which urine passes, including the bladder, the urethra including the urethral sphincter, and the urethral meatus. Urination is a basic physiological activity that people perform several times a day, and the lower urinary tract function gradually changes throughout life according to changes in end organs such as the bladder and urethral sphincter and the nervous system that controls this function. suffer from

These lower urinary tract dysfunctions include benign prostatic hyperplasia, neurogenic bladder, overactive bladder, urinary incontinence, urethral stricture, and acquired It is a symptom observed in subjects due to various diseases such as acquired voiding dysfunction. Diagnosis of lower urinary tract dysfunction includes history taking, physical examination, voiding diary, postvoid residual volume measurement, imaging study, cystourethroscopy, and urodynamics. A urodynamic study is selectively performed. Basically, the purpose of all tests is to accurately evaluate the symptoms and signs of the lower urinary tract during the patient's daily life, so it is most important to accurately reproduce and record the usual urination pattern.

The urodynamic study includes uroflowmetry, filling cystometry, pressure-flow study, urethral pressure profile, and electromyography of the sphincter. The urethral sphincter) is a collective name for a test consisting of several detailed items, and the detailed items are selectively tested according to the subject with symptoms of lower urinary tract dysfunction. In uroflowmetry, a patient urinates on a measuring device, calculates diagnostic parameters related to urinary flow rate during urination, and can visually show the voiding curve pattern over time. It is an inspection in Since uroflowmetry is non-invasive, it is widely used as a screening test primarily performed in patients with lower urinary tract dysfunction. Therefore, uroflowmetry is sometimes performed as part of urodynamics, but it is much more common to use it independently as a stand-alone urodynamics measurement device.

However, there are several practical problems associated with conventional uroflowmetry. First, in the past, after visiting a hospital, a subject has to undergo a test in front of a urodynamic examination equipment installed in a urodynamic examination room provided in the hospital. In normal cases, the test itself is recognized as valid when the patient's voided volume is at least a certain amount (150ml). However, if the patient shows a lower urine output, it becomes difficult to read the test result, so a repeat test is required. Therefore, there are cases in which it is difficult to quickly make a diagnostic judgment on the day of examination. Second, there is a problem in that there is a limitation in the inspection place. In other words, subjects visiting the hospital are instructed to urinate in front of an artificial urinary flow test device, but considering that voiding activity is a physiological activity that is very personal and has a lot of psychological influence, subjects in this artificial environment do not accurately reflect their usual patterns and become nervous. As a result, it is difficult to implement the usual urination pattern. Third, it is difficult to obtain a representative that fully reflects the usual pattern with one urination because there is a variation in the urination pattern every time urination occurs even in the same patient. Urine flow rate and flow curve pattern may vary slightly from time to time during urination even in a single individual. However, there are the most common patterns that distinguish each individual and disease. Therefore, it is difficult to regard the result as representative of the usual urination pattern with only one test for each individual. Therefore, it is common to perform uroflowmetry at least twice and interpret the best result as a representative value. In addition, in the case of existing uroflowmetry devices, mechanical arrangement and usability problems, for example, as the urine-collecting funnel is far from the patient's urethra (tip of urethra), the patient collects urine. As a result of not being able to aim at the exact location of the accommodation unit, wag artifacts are generated, and accordingly, there is a problem in that the amount of urine output is not evenly measured.

Accordingly, the urinary flow test requires a condition in which the usual voiding pattern can be well revealed without being greatly affected by the subject's psychological state. Therefore, there is a demand for the development of a portable urine test device capable of obtaining test results anytime, anywhere, regardless of place, not only in a specific place in a hospital, but also in a home or public toilet, while a patient's natural daily life is being performed.

In addition, in order to accurately reproduce the urination patterns of patients who urinate in different places during their daily lives, accumulated data through multiple examinations are required. If there is a portable device, the result of averaging the urinary velocity and voiding curve pattern accumulated over several days while the patient carries it can be easily presented to the hospital.

Republic of Korea Patent Registration No. 10-1815388

An object of the present invention to solve the above problems is to provide a portable urine flow test device that is easy to carry and can derive a quantified result value by inspecting the urine flow.

Furthermore, an object of the present invention is to provide a portable urinary flow test device having a detachable separate container in order to improve cleaning convenience and hygiene of a previously used container.

Furthermore, an object of the present invention is to provide a portable flow test device having a gyro sensor, a plurality of load cells, and/or a multi-axis load cell in order to measure an accurate flow rate per hour even when the flow test device is tilted.

Furthermore, an object of the present invention is to provide a portable urine test device having a funnel-shaped internal structure so that urine does not directly impact the load cell.

In order to achieve the above object, a portable urine flow test device using a gyro sensor according to an embodiment of the present invention includes a first container; a second container inserted into the first container; a sensor unit installed in the first container; a communication unit for transmitting the value sensed by the sensor unit to an external terminal; and a power supply unit supplying power to the sensor unit and the communication unit, wherein the sensor unit includes a load cell for measuring a weight of urine contained in the second container, a gyro sensor for measuring a change in orientation of the first container, and the gyro. A control unit for correcting the measured value of the load cell based on the measured value of the sensor may be included.

Preferably, the control unit may correct a measurement value of the load cell generated while the gyro sensor detects a change in orientation according to a magnitude of change in orientation detected by the gyro sensor.

Preferably, the second container can be detachable from the first container, and the weight of urine accommodated in the second container can be installed so that all of the sensor unit installed in the first container is transmitted.

Preferably, on the outer circumferential surface of the second container, a protrusion extending in the longitudinal direction of the second container is formed, and while the protrusion is fitted into a groove formed in the first container, the second container is formed in the first container. Can be inserted inside the container.

Preferably, the sensor unit includes a plurality of load cells installed at different positions on the inner circumferential surface of the first container to measure the weight of urine contained in the second container at each position, and the control unit, Measurement values of the plurality of load cells may be corrected based on preset weights for each load cell and measurement values of the gyro sensor.

Preferably, the second container is formed in a funnel shape on the inside of the second container, and the collecting part drains the urine flowing in from the upper opening to the lower discharge port, and one end is in communication with the collecting unit discharge port and the other end is the inner circumferential surface of the second container. A connection pipe may be formed so as to be installed in contact with the outlet so that the urine discharged from the discharge port is accommodated in the second container.

Preferably, the load cell may be a multi-axis load cell.

The present invention can provide a portable urine test device that is easy to carry and can derive quantified results by examining urine flow.

The present invention can provide a portable urine test device having a detachable separate container for cleaning convenience and sanitation of a previously used container.

The present invention may provide a portable flow test device having a gyro sensor, a plurality of load cells, and/or a multi-axis load cell in order to measure an accurate flow rate per hour even when the flow test device is tilted.

The present invention is to provide a portable urine test device having a funnel-shaped internal structure so that urine does not directly impact the load cell.

1 is a diagram showing the structure of a portable urine test device using a gyro sensor according to an embodiment of the present invention.
2 is a view for explaining a coupling structure between a first container and a second container in the present urine flow test device according to another embodiment of the present invention.
3 is a diagram showing the structure of a portable urine test device having a plurality of load cells according to another embodiment of the present invention.
4 is a view showing the structure of a portable urine test device having a funnel-shaped internal structure according to another embodiment of the present invention.
5 is a diagram showing that the terminal of the urinary flow test system according to an embodiment of the present invention derives urine curve patterns of a subject for a predetermined period and averages them.
6 is a view showing a bell-shaped normal pattern among reference urination curve patterns of a urinary flow test system according to an embodiment of the present invention.
7 is a view showing a tower-shaped superflow pattern among reference urination curve patterns of a urine flow test system according to an embodiment of the present invention.
8 is a view showing a compressive pattern among reference urination curve patterns of a urinary flow test system according to an embodiment of the present invention.
9 is a diagram showing a plateau-shaped constrictive pattern among reference voiding curve patterns of a urinary flow test system according to an embodiment of the present invention.
10 is a diagram showing an interrupted-shaped pattern among reference urination curve patterns of a urinary flow test system according to an embodiment of the present invention.
11 is a diagram showing an abdominal straining pattern among reference voiding curve patterns of a urinary flow test system according to an embodiment of the present invention.
12 to 14 are diagrams showing various other reference voiding curve patterns of the urinary flow test system according to an embodiment of the present invention.

With reference to FIGS. 1 to 4 , the structure and operation of a portable flow test device using a gyro sensor according to an embodiment of the present invention will be described below.

1 is a diagram showing the structure of a portable urine test device (hereinafter, referred to as “the present urine test device”) using a gyro sensor according to an embodiment of the present invention.

Referring to FIG. 1 , the urine flow test device may include a first container 100, a second container 200, a sensor unit 300, a communication unit 400, and/or a power supply unit 500.

The first container 100 may be made of plastic, a handle may be provided on a side surface, and a sensor unit 300, a communication unit 400, and/or a power supply unit 500 may be installed at a lower end. A partition wall 110 may be formed inside the first container 100, and the partition wall 110 may be made of a material having a flexible property. The partition wall 110 serves as a sliding guide when the second container 200 is inserted into the first container 100, and may be made of a material capable of minimizing frictional force for this purpose. Furthermore, the space between the partition wall 110 and the inner circumferential surface of the first container 100 may be an empty space or may be filled with a flexible material. This is to ensure that the weight of the urine to be contained in the second container 200 to be inserted into the first container 100 is completely transmitted to the sensor unit 300 .

The second container 200 may be disposable, may be made of vinyl or plastic material, and may be installed to be detachable from the first container 100 . The second container 200 is inserted through the opening at the top of the first container 100, and the outer circumferential surface 210 of the second container 200 may be inserted so as to come into contact with the partition wall 110 of the first container 100. . The structure of the partition 110 may be provided in various structures, but a detailed description thereof is omitted, and the second container 200 and the weight of urine to be contained in the second container 200 are sensors installed in the first container 100. The second container 200 is inserted into the partition wall 110 of the first container 100 so that it can be completely delivered to the unit 300 .

The sensor unit 300 may be installed in the first container 100 to measure and/or correct the weight of urine contained in the second container 200 . The sensor unit 300 may be installed between the inner circumferential surface of the lower end of the first container 100 and the partition 110, and the upper end of the sensor unit 300 is installed to contact the second container 200 so that the second container ( 200) so that the weight of urine contained in it can be measured.

The sensor unit 300 may include a load cell, a gyro sensor, and/or a control unit. The load cell measures the weight of urine contained in the second container 200, the gyro sensor measures the change in orientation of the first container 100, and the controller corrects the measured value of the load cell based on the measured value of the gyro sensor. do. The controller may correct a measurement value of the load cell generated while the gyro sensor detects the change in direction according to the size of the change in direction detected by the gyro sensor. In this case, the load cell may be a multi-axis load cell. When correcting the measured value of the load cell, the control unit uses weight values for each angle of the x, y, and z axes and for each flow rate.

In order to calibrate the measured value of the load cell, the inventor assumes that the angle when the first container 100 is level with the ground surface is 90 degrees based on the measured value of the gyro sensor, and for each of the x-axis, y-axis, and z-axis Angle parameters from 0 to 89 were set, and flow parameters from 0 to 1,000 ml were set. In addition, a certain amount of water was injected into this urinary flow test device using a metering pump from a water tank containing water, and a 3-axis rotation capable of 3-axis rotation within the range of 0 to 89 degrees with respect to the x-axis, y-axis, and z-axis By attaching this urinary flow test device to the jig, various tilt situations were created and repeated experiments were conducted. As a result, it was possible to derive a correction value that allows the same or very close weight value to the actual urine volume to be measured no matter what angle the present urinary flow test device is tilted.

At this time, with regard to the angle parameter, when setting the angle parameter for every 1 degree, 729,000 (90*90*90) cases occur, and when setting the angle parameter for every 3 degrees, 27,000 (30* 30*30) cases occur and angle parameters are set for every 5 degrees, 5,832 (18*18*18) cases occur and angle parameters are set for every 10 degrees, 729 cases (9*9* Case 9) occurs. On the other hand, regarding the flow rate parameter, when setting the flow rate parameter for every 1 ml, 1,000 values are generated, and when setting the flow rate parameter for every 10 ml, 100 values are generated.

Specifically, the inventors set angle parameters for every 10 degrees for each axis and set flow parameters for every 10 ml to conduct experiments. 10 ml of water was injected into the urine flow test device using a metering pump, and the measured values of the load cell for each case of 729 angles were stored. Then, weights for the measured values of the load cell for each 729 angle cases were calculated. Thereafter, the above-described process was repeated while additionally injecting 10 ml of water, and the experiment was terminated when 1,000 ml of water was injected and weight calculation was completed. As a result, when there is one load cell, a total of 72,900 weight values are output, and when there are 5 load cells (an embodiment in which a plurality of load cells will be described later), a total of 364,500 weight values are output.

Subsequently, in a situation where the user urinates while tilting the present urinary test device at a specific angle, the gyro sensor outputs rotation angles about the x, y, and z axes, and weights for angle cases corresponding to the output rotation angles are assigned to the load cell Multiply the measured value of to calculate the actual urine volume. If the user changes the angle of the urinary flow test device during use, a weight for the changed angle is automatically applied to calculate the urine flow rate.

On the other hand, if the angle is calculated every 1 degree or the flow rate is calculated every 1 ml, the number of repetitions increases significantly, resulting in an increase in cost. Therefore, the number of experiments could be reduced by calculating the flow weight of the median value between every 10 ml by applying a known interpolation method (Newton, Lagrange, etc.).

The communication unit 400 may transmit a value detected and/or corrected by the sensor unit 300 to an external terminal. The communication unit 400 communicates with an external terminal in a wired/wireless manner, and through this, a result value derived from the sensor unit 300 can be transmitted to an external terminal.

Here, the external terminal may include a general PC such as a laptop, desktop, or laptop equipped with a web browser, and is a wireless communication device that guarantees portability and mobility, and is a personal communication system (PCS). ), GSM (global system for mobile communications), PDC (personal digital cellular), PHS (personal handyphone system), PDA (personal digital assistant), CDMA (code division multiple access)-2000, W-CDMA (wcode division multiple access) ), wireless LAN (WLAN) (Wi-Fi), wireless broadband (WiBro), world interoperability for mocrowave access (WiMAX), high speed downlink packet access (HSDPA), high speed uplink packet access (HSUPA), high speed packet access (HSPA) access), all types of handheld-based wireless communication devices such as terminals supporting long term evolution (LTE).

The power supply unit 500 includes a power supply unit that supplies power to the sensor unit 300 and the communication unit 400, and is connected to an external power source (eg, 220V) to supply power to the sensor unit 300 and the communication unit 400. It can be supplied, and it can be provided with a battery such as a dry cell or a rechargeable battery to supply power to the sensor unit 300 and the communication unit 400.

The ventilation pipe 700 is formed to extend from the bottom surface of the first container 100 to the outside of the lower end of the urine flow test device. Thus, when the second container 200 is inserted into the first container 100, the air inside the first container 100 can flow smoothly to the outside through the ventilation pipe 700, through which the first container 100 (100) It is possible to solve the problem that the second container 200 is not completely inserted into the first container 100 due to the air pressure sealed therein.

2 is a view for explaining a coupling structure between a first container and a second container in the present urine flow test device according to another embodiment of the present invention.

Referring to FIG. 2 , a protrusion 240 is formed on the outer circumferential surface 210 of the second container 200. At this time, the protrusion 240 may be formed extending in the longitudinal direction of the second container 200. On the other hand, the first container 100 is formed with a groove 10 extending in the longitudinal direction of the first container 100 to correspond to the protrusion 240 of the second container 200, whereby the second container 200 When is inserted into the first container 100, the protrusion 240 of the second container 200 is fitted into the groove 10 of the first container 100, and the first container 100 and the second container ( 200) may be coupled to each other and fixed.

At this time, a portion of the entire outer circumferential surface 210 of the second container 200 where the protruding portion 240 is not formed is in contact with the partition wall 110 of the first container 100 . However, the end 241 of the protrusion 240 does not come into contact with the inner circumferential surface of the first container 100 . That is, a gap exists between the end 240 of the protrusion 240 and the inner circumferential surface of the first container 100 . Thus, when the second container 200 is inserted into the first container 100, the air inside the first container 100 can flow out smoothly to the outside through the gap, through which air like the gap When there is no outflow channel, it is possible to solve the problem that complete insertion may not be performed due to air sealed inside the first container 100 .

To this end, the length from the outer circumferential surface 210 of the second container 200 to the end 241 of the protrusion 240 is from the outer circumferential surface of the partition wall 110 of the first container 100 to the first container 100. It is formed shorter than the length to the inner circumferential surface.

According to another embodiment, the protrusion 240 of the second container 200 and the groove 10 of the first container 100 may be formed in plurality, respectively, and preferably, the two protrusions 240 are mutually It is formed on the outer circumferential surface 210 of the second container 200 so as to be symmetrical, and two grooves 10 corresponding to it may also be formed in the first container 100 so that they are symmetrical to each other.

According to another embodiment, instead of the air gap formed between the protrusion 240 of the second container 200 and the inner circumferential surface of the first container 100 in the above-described embodiment, a ventilation hole is formed on the bottom surface of the first container 100. May be formed. Specifically, a ventilation hole is formed in the lower partition wall 110 of the first container 100, and a separate ventilation hole is formed on the outer circumferential surface of the first container 100 in contact with the outside, and the partition wall 110 ) It can be designed so that the internal air introduced into the ventilation hole can flow out through the ventilation hole formed on the outer circumferential surface of the first container (100). At this time, the space between the partition wall 110 and the inner circumferential surface of the first container 100 should be formed as an empty space so that air can flow therein.

3 is a diagram showing the structure of a portable urine test device having a plurality of load cells according to another embodiment of the present invention.

Referring to FIG. 3 , in the present urine flow test device, the sensor unit 300 includes a plurality of load cells 310, 320, and 330, and each load cell is located between the inner circumferential surface of the first container 100 and the partition wall 100. It can be installed in different locations in space. Each load cell installed at different locations measures the weight of urine contained in the second container 200 at each location. In this case, the control unit may correct the measured values of the plurality of load cells based on the weights for each load cell and the measured values of the gyro sensor. When using a plurality of load cells, tension may occur, so in this embodiment, each load cell may be a tension/compression load cell. At this time, with respect to the correction of the measured value of the control unit, it was possible to derive an optimal correction value by experimenting in the same manner as in the above embodiment.

4 is a view showing the structure of a portable urine test device having a funnel-shaped internal structure according to another embodiment of the present invention.

Referring to FIG. 4 , in the present urine flow test device, a collecting unit 220 and a connection pipe 230 may be formed inside the second container 200 . The collecting unit 220 is formed in a funnel shape to discharge urine flowing in from an opening at the top to a discharge port at the bottom. The connection pipe 230 allows the urine flowing out from the discharge port to be accommodated inside the second container 200 without direct impact with the inner circumferential surface of the second container 200. One end of the connection pipe 230 is a collecting unit ( 220) communicates with the outlet and the other end may be installed to come into contact with the inner circumferential surface of the second container 200, and the other end of the connection pipe 230 may be installed to face a portion where the sensor unit 300 is not installed. there is. As a result, it is possible to prevent wag artifacts generated in the existing flow test device.

According to another embodiment, the urine flow test device may be combined with an external terminal to configure a urine flow test system. Hereinafter, with reference to FIGS. 5 to 14, the operation of the urine flow test system will be described below.

The terminal receives the result value transmitted from the portable urine test device, creates and outputs urination information based on the received result value, and is connected to the portable urine test device described above in a wired or wireless manner.

In one embodiment, the terminal may include a general PC such as a laptop, a desktop, or a laptop equipped with a web browser, and is a wireless communication device that ensures portability and mobility, and includes a PCS ( personal communication system), GSM (global system for mobile communications), PDC (personal digital cellular), PHS (personal handyphone system), PDA (personal digital assistant), CDMA (code division multiple access)-2000, W-CDMA (wcode) division multiple access), Wi-Fi (wireless LAN, WLAN), WiBro (wireless broadband), WiMAX (world interoperability for mocrowave access), HSDPA (high speed downlink packet access), HSUPA (high speed uplink packet access), HSPA ( It may include all types of handheld-based wireless communication devices such as terminals supporting high speed packet access (LTE) and long term evolution (LTE).

In one embodiment, a terminal includes a processor such as a microprocessor for operating/adjusting other components of the terminal, a user interface for receiving input control signals and data from a user of the terminal, a memory for storing data, and various It may include a display for displaying an image, a communication unit for communicating data with various external devices such as a portable urine test device, and one or more ports for accommodating various terminals such as a power cable and USB.

As an embodiment, the urination information prepared and outputted from the terminal may include at least one of result values such as a test date and a test time period, a maximum urinary velocity of a fluid, an average urinary velocity, a urination volume, a urination time, and a urination delay time.

As an embodiment, the terminal may compare the result value received from the portable urine flow test device with a pre-stored reference result value, determine one of a normal group, a low-risk group, and a high-risk group and output the result.

Here, the pre-stored standard result values are the highest urinary velocity, average urinary velocity, urination volume, urination time, and urination delay time observed in normal cases, and the highest urinary velocity, average urinary velocity, and urination volume observed in abnormal cases (preferably for each disease). , means urination time and urination delay time.

As an embodiment, the subject information may include information about the subject's age, gender, examination time period, and disease (prostatic hyperplasia, urinary incontinence, enuresis, overactive bladder symptoms, etc.), and a pre-stored reference result value compared in a terminal or The reference urination curve pattern may be set differently according to the above-described subject information. That is, a look-up table for classifying a subject into one of a normal group, a low-risk group, and a high-risk group by comparing result values derived from the portable urinary flow test device may be different according to the above-described subject information. According to this, as the subject information is reflected during the urine flow test, more accurate discrimination is possible.

In another embodiment, the terminal may derive a graph of a voiding curve pattern of the subject using the received result value. At this time, the urination information prepared and outputted by the terminal may include a urination curve pattern.

In addition, the terminal may compare the derived urine curve pattern of the subject with a pre-stored standard urine curve pattern, determine one of the normal group, low-risk group, and high-risk group and output the result.

5 is a diagram showing that the terminal of the urinary flow test system according to an embodiment of the present invention derives urine curve patterns of a subject for a predetermined period and averages them.

Referring to FIG. 5, the terminal draws a graph of the urine curve pattern of the subject for 3 days using the result values measured for a preset period, for example, for 3 days, and then averages the urination curve. An average voiding curve pattern, which is a pattern, can be derived. Thereafter, the terminal compares the derived average urination curve pattern with a pre-stored standard urination curve pattern to determine one of the normal group, low-risk group, and high-risk group, and the examiner can use the derived average urination curve pattern to diagnose symptoms. can

Here, the standard urine curve patterns pre-stored in the terminal include a bell-shaped normal pattern, a tower-shaped superflow pattern, a compressive pattern, and a peak sustained pattern ( plateau-shaped constrictive pattern, interrupted-shaped pattern, and abdominal straining pattern.

6 is a view showing a bell-shaped normal pattern among reference urination curve patterns of a urinary flow test system according to an embodiment of the present invention.

Referring to FIG. 6, the bell-shaped normal pattern is a bell-shaped voiding curve pattern in which the flow peak of the urinary flow is appropriately derived without abnormalities in the function of the lower urinary tract of the subject, It means a normal category of voiding curve pattern in which neither hesitancy nor terminal dribble is observed.

7 is a view showing a tower-shaped superflow pattern among reference urination curve patterns of a urine flow test system according to an embodiment of the present invention.

Referring to FIG. 7 , a tower-shaped superflow pattern is similar to a bell-shaped normal pattern, but means a voiding curve pattern in which the peak value of urinary flow is higher than the normal range. This tower-shaped excess flow pattern is caused by detrusor overactivity of the subject or is observed when urethral resistance is very low.

8 is a view showing a compressive pattern among reference urination curve patterns of a urinary flow test system according to an embodiment of the present invention.

Referring to FIG. 8 , a compressive pattern is a pattern commonly observed in subjects with benign prostatic hyperplasia (BPH). When bladder contraction pressure increases during urination, the aperture of the urethra expands. In prostatic hyperplasia, the enlarged prostate presses on the urethra, limiting the aperture of the urethra. In such symptoms, although the caliber of the urethra is limited, there is room for it to expand little by little during urination, so intermittency or terminal dribble may be observed at the end of the urination curve pattern.

9 is a diagram showing a plateau-shaped constrictive pattern among reference voiding curve patterns of a urinary flow test system according to an embodiment of the present invention.

Referring to FIG. 9 , a plateau-shaped constrictive pattern means a voiding curve pattern in which a plateau-shaped peak of urinary flow is not properly formed and a plateau-shaped peak continues. The apical sustained pattern means that the aperture of the urethra never dilates beyond a certain extent, and this pattern of voiding curve is observed when symptoms of urethral stricture are present.

10 is a diagram showing an interrupted-shaped pattern among reference urination curve patterns of a uroflow test system according to an embodiment of the present invention.

Referring to FIG. 10, the interrupted-shaped pattern is a voiding curve pattern in which the urinary flow is interrupted several times. means that

11 is a diagram showing an abdominal straining pattern among reference voiding curve patterns of a urinary flow test system according to an embodiment of the present invention.

Referring to FIG. 11 , an abdominal straining pattern refers to a voiding curve pattern found when urination is performed with abdominal pressure, and is observed when there is no bladder contraction force and urethral resistance is very low. At this time, performing a flow-EMG study using an EMG patch in parallel with a uroflow test using the portable uroflow test device of the present invention can help to accurately distinguish whether the subject's symptoms are caused by pressure urination. there is.

On the other hand, the wag artifact is an error that occurs during the urinary flow test process, that is, during the process of deriving the urination curve pattern, and is caused by the collection of urine streams on one side of the outer side of the uroflow test device. Since this shaking error is observed in the peak part of the urination curve pattern, it is preferable to correct it so as to determine the maximum flow rate (Qmax) by averaging with the peak area. In addition, artificial noise signal errors refer to signal errors due to minor collisions such as unintentional kicking of test equipment with sensors by an examinee, and thus it is necessary to correct these errors.

12 to 14 are views showing other various reference urine curve patterns of the urinary flow test system according to an embodiment of the present invention.

12 to 14, in addition to the above-described urination curve patterns, the reference voiding curve patterns pre-stored in the terminal include the intermittent straining flow pattern of FIG. 12 and the dysfunctional voiding of FIG. 13. voiding), detrusor-striated sphincter dyssynergia (DSD) of FIG. 14, and the like, various abnormal voiding curve patterns.

In another embodiment, the terminal may determine the subject as one of a normal group, a low-risk group, and a high-risk group using a pre-learned artificial neural network.

More specifically, the artificial neural network of the terminal continuously learns the reference result value and the reference urine curve pattern (preferably, the result value and urine curve pattern derived from actual disease cases), and the subject for whom the portable urinary flow test device was derived. When the result value of is transmitted to the terminal, the terminal can determine the subject as one of the normal group, the low-risk group, and the high-risk group using the pre-learned artificial neural network. Meanwhile, the artificial neural network of the terminal may be provided with a deep convolutional neural network (DCNN) or the like, but is not limited thereto.

The embodiments described in this specification belong to the same technical field, and components constituting one embodiment may be combined with components constituting another embodiment to form a new embodiment.

The protection scope of the present invention is not limited to the description and expression of the embodiments explicitly described above. In addition, it is added once again that the scope of protection of the present invention cannot be limited due to obvious changes or substitutions in the technical field to which the present invention belongs.

In describing the embodiments of the present invention, each “unit”, “module” or “step” may be implemented through a processor and a memory. Processor should be interpreted broadly to include general purpose processor, central processing unit (CPU), microprocessor, digital signal processor (DSP), controller, microcontroller, state machine, and the like. In some circumstances, processor may refer to an application specific integrated circuit (ASIC), programmable logic device (PLD), field programmable gate array (FPGA), or the like. A processor may refer to a combination of processing devices, such as, for example, a combination of a DSP and a microprocessor, a combination of a plurality of microprocessors, a combination of one or more microprocessors in conjunction with a DSP core, or any other such configuration. .

Memory of the present invention should be broadly interpreted to include any electronic component capable of storing electronic information. Memory includes random access memory (RAM), read-only memory (ROM), non-volatile random access memory (NVRAM), programmable read-only memory (PROM), erasable-programmable read-only memory (EPROM), electrically It may also refer to various types of processor-readable media, such as erasable PROM (EEPROM), flash memory, magnetic or optical data storage, registers, and the like. A memory is said to be in electronic communication with the processor if the processor can read information from or write information to the memory, and each "part", "module" or "step" is said to be in electronic communication with the processor and the memory. It can be implemented through a based program or application.

100: first container 200: second container
300, 310, 320, 330: sensor unit 400: communication unit
500: power unit 110: bulkhead
210: outer circumferential surface of the second container 220: collection unit
230: connector 240: protrusion
241: end of protrusion 700: ventilation pipe
10: home

Claims (7)

a first container;
a second container inserted into the first container;
a sensor unit installed in the first container;
a communication unit for transmitting the value sensed by the sensor unit to an external terminal; and
A power supply unit for supplying power to the sensor unit and the communication unit;
The sensor unit includes a load cell for measuring the weight of urine contained in the second container, a gyro sensor for measuring a change in orientation of the first container, and a control unit for correcting the measured value of the load cell based on the measured value of the gyro sensor. Including, a portable urinalysis device. The method of claim 1,
The control unit corrects a measurement value of the load cell generated while the gyro sensor detects the change in direction according to the size of the change in direction detected by the gyro sensor. The method of claim 1,
The second container is detachable from the first container, and is installed so that the weight of urine accommodated in the second container is transmitted to the sensor unit installed in the first container. The method of claim 1,
On the outer circumferential surface of the second container, a protrusion extending in the longitudinal direction of the second container is formed, and while the protrusion is fitted into a groove formed in the first container, the second container is inside the first container. An implanted, portable urinalysis device. The method of claim 1,
The sensor unit includes a plurality of load cells installed at different positions on the inner circumferential surface of the first container and measuring the weight of urine contained in the second container at each position,
The control unit corrects the measured values of the plurality of load cells based on the weights for each load cell set in advance and the measured values of the gyro sensor. The method of claim 5,
A collecting part formed in a funnel shape inside the second container to drain urine flowing from the opening at the top to the outlet at the bottom, and one end communicates with the outlet of the collecting part and the other end is installed to contact the inner circumferential surface of the second container. and a connection pipe is formed to allow the urine flowing out from the outlet to be accommodated in the second container. The method of claim 1,
The load cell is a multi-axis load cell, a portable urine test device.

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