KR101540522B1 - Uroflowmeter with optical measurement - Google Patents

Abstract

It is possible to increase the reliability of measurement of diagnostic parameters because shock noise generated by the weighing type urinalysis testing device does not occur. By transmitting and receiving the measurement results by radio, it gives stability to the subject and enables the whole process of urination to proceed naturally The optical measurement method of the present invention provides an optical measuring speed measuring system capable of securing the stability of the optical system.
The optical technique measurement speed measuring system includes an amateur testing device, which is a measuring part that performs actual measurement, and an amplifying and converting part that amplifies and converts an electrical signal measured through the amateur testing device. The amplified and converted electrical signal And an analysis and display unit for receiving and analyzing the transmitted electrical signals and informing the clinician of the result of the analysis. The apparatus for inspecting urinalysis includes a turbine, an optical element, and an optical sensor The rotational speed of the turbine, which is proportional to the urge, is optically measured through the installed yaw rate testing device so that diagnostic parameters for diagnosing enlarged prostate can be calculated.

Description

[Uroflowmeter with optical measurement]

The present invention relates to an accelerometer, and more particularly, to a method and apparatus for optically measuring the rotational speed of a turbine proportional to a urge through a urine inspecting device in which a turbine, an optical element, and an optical sensor are installed, And an optical measuring measuring device for calculating the parameters.

Prostate is a bland - shaped soft tissue that is only found in men, and it is located under the bladder and weighs about 20g on a normal adult basis.

The prostate gland gradually increases in size as it ages. As a related disease, the most common prostate disease after middle age is benign prostate hypertrophy (BPH).

The prostate hyperplasia is a disease in which the prostate gland is excessively enlarged in tissue and pathology. The enlarged prostate gland presses the urethra, which is a passage through which the urine of the lower bladder comes out, and causes a variety of urinary abnormalities such as urethral obstruction.

The diagnostic methods for such enlargement of the prostate include an examination of the body and the body, a urinalysis, a prostate specific antigen test, a symptom score test, and a transrectal ultrasound examination. Among these, the most commonly used method is noninvasive, Simple Uroflowmetry is commonly used. The urinary frequency test is a test for measuring the volume (urine volume) of urine (urine volume) as a function of time (t) by collecting urine during urination by the human body, and is a biometric test necessary for diagnosis of the above-mentioned benign prostatic hyperplasia.

)과 평균요속(

) 이 있다.The general measurement principle of the yaw rate test is shown in Fig. As shown in Fig. 1, in order to perform a urine test on a patient, first, the patient discharges urine into a collecting box 10 for urine test. The collecting box 10 measures the volume (V) and the time (t) of the inserted urine and measures it as a time function per volume of the urine (V (t), Urine volume signal) When the function (V (t)) is differentiated with respect to time, the urine flow rate (F (t), urinary flow rate) is obtained, from which diagnostic parameters for diagnosing enlargement of the prostate can be calculated, As the parameters, the maximum yaw rate (shown in the yaw rate graph 20 of Fig. 1

) And average speed

).

2 shows the structure of a conventional yaw rate test apparatus. In order to perform the urine test as described above, the conventional urine test is based on the measurement of urine weight as shown in Fig. As shown in FIG. 2, the conventional weighing type yaw rate testing apparatus comprises a collecting box 10 and a load cell 11, and urine discharged from the patient is accumulated in the collecting box 10 having a constant diameter , And the load cell 11 under the container calculates the diagnostic parameter by measuring the weight change of the urine during the urination.

More specifically, urine (urine) has a specific gravity of about 1, and its weight (W) is the product of mass (m) and gravitational acceleration (g), mass (m) Is the product of the volume (V), the weight can be measured by the following equation (1).

(V), the following equation (2) can be obtained.

Since the specific gravity p and gravitational acceleration g are constants, it can be concluded that the volume V and the weight W are proportional to each other. Therefore, the volume change, that is, the yaw rate signal, can be obtained through the following equation (3) by measuring the change in the weight (W) while collecting urine during urination in the cull 10.

In Equation (3), the conventional weighing type urinalysis testing apparatus measures the diagnostic parameters related to the enlargement of the prostate gland through the load cell 11 in the form of an electric signal.

However, since the above-mentioned weighing type urinalysis testing device is based on the basis of the measurement of the diagnostic parameters, when the patient performs urination into the collection container, the weight of the urine is measured together with the amount of impact generated by touching the floor of the yoga .

3, the urine introduced into the cull 10 is a liquid, which is not contracted or expanded like a gas. Therefore, the weight of urine as well as the amount of impact applied to the water surface after a certain amount of yoga is collected And is transferred to the load cell 11 as it is.

Since the amount of the impact is determined by various factors such as the direction and speed of the yaw, it has an unspecified value, which makes it difficult to correct. Therefore, the amount of the shock is a noise that interferes with the measurement of the weight of the yaw, There arises a problem that the accuracy of the diagnostic parameters measured by the testing device is lowered.

In addition, in the above-described weighing type urinalysis testing apparatus, when the whole process of urination is measured, the patient and the clinician should be placed in the same space or close to each other to instruct the start and end of the test. And it can be an obstacle to smooth urination, and there is a disadvantage in that there is a possibility of privacy invasion of an individual.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems of the prior art and to provide a diagnostic apparatus and a diagnostic apparatus capable of optically measuring rotational speed using a turbine, And to provide an optical measurement measuring system capable of wirelessly transmitting and receiving measurement results.

In order to accomplish the object of the present invention as described above,

According to the present invention, it is possible to increase the reliability of the measurement of the diagnostic parameters due to no shock noise generated in the conventional weighing type urinalysis testing apparatus, and to provide a sense of stability to the subject by wirelessly transmitting and receiving the measurement results, So that the stability of the measurement can be ensured.

Fig. 1 is a schematic view of a general measurement principle of the yaw rate test.
Fig. 2 and Fig. 3 are structural diagrams of a conventional yaw rate test apparatus.
4 is a block diagram of a measuring system of the optical measuring speed measuring system of the present invention.
FIG. 5 is an exploded perspective view of a uricome testing device of the present invention. FIG.
6 is a structural view showing a state in which the urine inspecting apparatus of the present invention is installed in a collecting cylinder and a funnel.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be described in more detail with reference to the accompanying drawings. The following description is intended to assist in the understanding and understanding of the present invention, but is not to be construed as limiting the invention thereto. Those skilled in the art will appreciate that various modifications and changes may be made within the spirit of the invention as set forth in the following claims.

Fig. 4 is a diagram showing the configuration of a measuring system of the optical measuring speed measuring system of the present invention. The optical technique measurement speed measuring system of the present invention includes an amateur testing device 100 serving as a measuring part for actual measurement and an amplifying and converting part 200 for amplifying and converting an electrical signal measured through the yaw rate testing device 100, An analyzing and displaying unit 400 for receiving and analyzing the transmitted electrical signal and notifying a result to a medical practitioner, a wireless transceiver 300 for transmitting and receiving an electrical signal amplified and converted through the amplifying and converting unit 200, ).

5 is an exploded perspective view of a uricome testing apparatus 100 according to the present invention. As shown in FIG. 5, the yaw rate testing apparatus 100 of the present invention includes a turbine section 110 and a yaw rate tester 120.

The turbine unit 110 includes a yaw collecting case 111 for collecting flowing yaws to flow in a predetermined direction, a flow control unit 112 installed inside the yaw collecting case 111, A turbine 114 which rotates and collides with the yaw that flows in a predetermined direction through the case 111 and the flow control unit 112 and a turbine 114 installed at the lower end of the yaw collecting case 111 to prevent loss of the turbine 114, (113).

As shown in FIG. 5, the yaw rate tester 120 includes a tapered conical tester 121 and a funnel tester 100 at the lower tier of the tester case 121 (not shown) And a cylindrical connecting pillar 123 formed at the lower end of the tester case 121 to connect the turbine 110 and the yaw rate tester 120 to each other, Is formed.

An optical element, an optical plate, and an optical sensor (not shown) for changing the rotation of the turbine 114 into an optical signal are installed inside the inspecting case 121 of the conical shape with the side cut off, A rotation pin 123a is inserted into the connection pillar 123 of the coupling pin 123 so as to be rotatable into the connection pillar 123 as shown in Figure 5. One end of the rotation pin 123a is connected to the disk- (Not shown), and a disk-shaped optical plate (not shown) rotates in accordance with the rotation of the rotation pin 123a. The operation of the optical element, the optical plate, the optical sensor (not shown) and the like will be described later. In the following, the combination of the turbine portion 110 and the yaw rate tester 120 will be described.

The urine collecting case 111 is hollow and has a diameter equal to the diameter of the connecting column 123 so that the connecting column 123 can easily penetrate through the center of the urine collecting case 111 A case column 111a having a through hole 111h is formed and a case column 111a is fixed to the case collecting case 111 to fix the case column 111a to the case 100. [ One or more case column arms 111b are formed on the rear surface of the yaw collecting case 111 to be connected to the case columns 111a in a state of being parallel to the center of the case column 111, 111a and the yaw collecting case 111 can be fixedly connected.

A coupling hole 112h is formed at the center of the flow control unit 112 so as to be penetrated through the case column 111a of the yaw collecting case 111, At least one flow control blade 112a is formed as shown in Fig. The one or more flow control blades 112a are manufactured so as to be able to precisely fit into the empty space of the yaw collecting case 111 and installed in the fastening holes 112h of the flow control unit 112 through the case pillars 111a Fix it back.

The connection pillar 123 formed at the lower end central portion of the yaw rate tester 120 is inserted into the case column 111 of the yaw collecting case 111 in the state where the flow control unit 112 and the yaw collecting case 111 are installed, 111b of the turbine section 110 by connecting the yaw rate tester 120 with the yaw collecting case 111 and the flow control section 112 of the turbine section 110 by being inserted into the through hole 111h formed at the center of the turbine section 111a. At this time, the other side of the rotating pin 123a, which is rotatably inserted into the connecting column 123, is inserted through the turbine 114, and the other side of the rotating pin 123a is connected to the turbine 114). At this time, the turbine 114 is fitted to the rotation pin 123a and is fixed due to the frictional force, so that the rotation pin 123a is rotated by the rotation of the turbine 114, and the rotation pin 123a is rotated As a result of the rotation of the connected optical plate (not shown), the optical plate (not shown) can rotate as the turbine 114 rotates.

In the turbine 114, one or more turbine blades 114a are formed as shown in FIG. 5, wherein the turbine blades 114a are structured such that the flow control blades 112a and the turbine blades 114a The yaw that is induced in the direction of the arrow by the flow control blade 112a in the structure diagram (A) as being perpendicular to each other as shown in Fig. 1 (A) 114a so that the turbine 114 having the turbine blade 114a is sensitive to the impact of the yaw and can rotate accurately.

The turbine case 113 is coupled to the lower end of the yaw collecting case 111 in a state where the yaw collecting case 111, the flow control unit 112 and the turbine 114 are installed on the connecting pillar 123, The turbine section 110 is installed at the lower end of the yaw rate tester 120.

In order to prevent the turbine 114 from being separated from the turbine case 113 at the lower end of the turbine case 113, when the turbine 114 is detached from the turbine case 113, And re-installation is facilitated. At this time, the turbine departure prevention bar 113a is not limited in shape, but is preferably formed so as to easily support the other end of the rotation pin 123a.

6 is a structural view showing a state in which the urine testing device 100 of the present invention is installed in the collecting cylinder 10 and the funnel 20. Hereinafter, the operation of the yaw rate testing apparatus 100 of the present invention will be described with reference to Figs. 5 and 6. Fig.

6, the yaw rate testing apparatus 100 constructed as described above and coupled with each element is mounted on a funnel 20 having a cylindrical outlet 21 at a lower end thereof, The turbine section 110 of the yaw rate testing apparatus 100 can be inserted into the yawing turbine section 110 through the funnel 20 as much as possible so that the turbine section 110 can be closely attached to the outlet 21 as much as possible. desirable. In addition, the lower end of the funnel 20 is provided with a collecting box 10 for storing the urine passing through the urine screening device 100.

6, the yaw rate testing apparatus 100 is supported on the funnel 20 by one or more support panels 122 installed at the lower end of the yaw rate tester 120, Is placed at the outlet (21), and the yaw rate tester (120) is positioned at a distance on the funnel (20).

A signal measuring unit 130 including an optical plate 131 and an optical element 132 and an optical sensor 133 is installed inside the turbine unit 120. The optical plate 131 rotates in accordance with the rotation of the turbine 114, do. The user operates the optical element 132 and the optical sensor to prepare the signal measuring unit 130 for measuring the signal according to the urination before the user inserts the urine into the urine testing apparatus 100.

In a state in which the signal measuring unit 130 is operated, the patient inserts the urine into the urinary flow testing apparatus 100 described above. 5 and 6, the tester case 121 of the yaw rate tester 120, which is located at the upper end of the yaw rate tester 100 and is exposed outside the funnel 20, is formed in a conical shape as shown in Figs. 5 and 6, So that the yaw input in the direction of the arrow is inputted to the turbine portion 110 of the yaw rate testing apparatus 100 as much as possible.

6, the urine may pass through the flow control 112 and be transmitted to the turbine 114 most effectively by the flow control blade 112a in the flow control 112, The turbine 114 is rotated by the flow angle and the turbine 114 is rotated by the urge transmitted through the flow control unit 112 so that the turbine 114 rotates as described above, And the optical plate 131 connected by the rotation pin 123a are rotated.

Here, the optical plate 131 is a disc made of a transparent material such as transparent plastic, and a light blocking paint 131a serving as a light blocking function is formed on the surface of the optical plate 131 at a predetermined interval 6, the light blocking paint 131a serves to block the light emitted by the optical device 132 located on the optical plate 131. In this case,

6, the optical element 132 is provided with a portion for projecting the light downward, and a photosensor 133 is provided to receive the light emitted by the optical element 132, The optical sensor 133 serves to receive the light emitted by the optical device 132 and further includes a circuit for measuring the rotational speed of the optical plate 131 It has built-in. An optical plate 131 is disposed between the optical element 132 and the optical sensor 133, and a light blocking paint 131a is painted at regular intervals.

In a state in which the optical plate 131 does not rotate, the optical element 132 passes through the optical plate 131 formed of a material that transmits light and transmits the light continuously to the optical sensor 133 as it is Or the light blocked by the light blocking paint 131a on the optical plate 131 does not receive the emitted light so that the light sensor 133 can not receive light. From the case of both, the optical sensor 133 can judge that the optical plate 131 is not rotating, which can lead to a judgment that the velocity measuring apparatus 100 is not operating.

When the optical plate 131 rotates due to the input of the urine, the light emitted from the optical element 132 is fragmented by the rotating optical plate 131 and is input to the optical sensor 133 do. That is, since the state of the optical plate 131 between the optical element 132 and the optical sensor 133 appears alternately in a state in which light is transmitted and in a state in which light is not received by the light blocking paint 131a The optical sensor 133 may be in the form of a pulse that alternates between a state in which the optical signal is received and a state in which the optical signal is not received. If the plate 131 rotates slowly, the interval of the optical signal pulses received by the optical sensor 133 will be relatively long. If the optical plate 131 rotates rapidly, the intervals of the optical signal pulses will be short. Accordingly, the rotation speed of the optical plate 131 can be calculated through the interval of the optical signal pulses, and the speed of the yaw rate input to the yaw rate testing device 100 can be calculated through the rotation speed of the optical plate 131 .

Hereinafter, a method of calculating the rotational speed and yaw rate of the optical plate 131 through the optical signal pulse will be described.

If the yaw rate input to the yaw rate testing apparatus 100 is F [LPS] and the rotation speed of the optical plate 131 is r [RPS], the following equation can be derived.

은 회전상수를 의미한다. 그리고, 상기 광플레이트(131) M개의 광차단도색(131a)이 도색되어 있다면, 상기의 회전 비례상수

은 M이 증가함에 따라 그 값이 증가할 것이므로 상기의 회전상수는 다음과 같이 표현될 수 있다.Here,

Means the rotation constant. If the M light blocking paints 131a of the optical plate 131 are colored, the rotation proportional constant

Since the value increases as M increases, the rotation constant can be expressed as follows.

By substituting the above equation (5) into the equation (4)

.

6 is formed on the optical plate 131, the angle &thetas; between the adjacent two slots 131b is expressed by the following equation

And N pulses are displayed every time the optical plate 131 rotates one turn.

은 수학식 4에서 다음의 수학식 8의 형태로 도출될 수 있다.In Equation (6), the number of revolutions per unit time (1 sec) per unit yaw rate (LPS)

Can be derived in the following Equation (8) in Equation (4).

바퀴 회전하고, 따라서 발생하는 출력 펄스의 수

은Therefore, when F = 1 [LPS]

The number of output pulses that the wheel rotates and thus occurs

silver

And Equation (9) can be expressed as an optical signal pulse graph as shown in the following graph 1.

Graph 1

은 1/

[sec]가 되고 상기 출력 펄스의 수

은 수학식 9로 표현되어 있으므로, 요속해상도

는 다음과 같이 표현된다.In the above graph 1, the interval between two adjacent pulses

1 /

[sec] and the number of output pulses

Is expressed by Equation (9), the yaw rate resolution

Is expressed as follows.

Applying Equation (7) to Equation (10) can be expressed as follows.

은 상기와 같이 표현되고, 출력펄스의 수

은 수학식 9에 의해 변형 표현될 수 있으므로 상기의 시간간격

은At this time, the time interval between two adjacent pulses

Is expressed as above, and the number of output pulses

Can be expressed by the equation (9)

silver

.

는If the time interval between two adjacent pulses sensed when an arbitrary yaw rate F flows is T,

The

는And Expression (10) and Expression (12) are substituted into Expression (13) above, Expression

The

. ≪ / RTI >

)을 산출할 수 있게 된다. 또한, 배뇨시간 및 평균요속, 최대요속, 최대요속시간 등의 진단매개변수 산출이 가능하다.From the above equation (14), the yaw rate graph is calculated according to the unit time, and the yaw rate signal is integrated with respect to time to obtain the urine volume

) Can be calculated. In addition, it is possible to calculate diagnostic parameters such as urination time and average urinary frequency, maximum urinary frequency, and maximum urinary frequency.

Graph 2 below is a graph of a commonly known yaw rate signal and time function F (t). Hereinafter, a method for calculating the urination time, the urination volume, the average urinary frequency, the maximum urinary frequency, and the maximum urinary frequency time will be described with reference to the graph 2.

Graph 2

는 상기 그래프 2의 F(t)에서의 시간 축의 거리가 되므로 다음과 같이 시간 축 최대값에 최소값을 감하여 표현할 수 있다.The urination time

Is the distance of the time axis in F (t) of the graph 2, it can be represented by subtracting the minimum value to the maximum value of the time axis as follows.

는 상기 그래프 2의 F(t)의 면적이 되므로, 상기의 함수 F(t)를 시간 값으로 적분하여 다음과 같이 표현할 수 있다.Then,

Is the area of F (t) in the graph 2, the above function F (t) can be expressed as a time value and expressed as follows.

은 상기의 배뇨용적을 배뇨시간으로 나눈 값이 되므로, 다음과 같이 표현할 수 있다.And average speed

Is the value obtained by dividing the urination volume by the urination time, it can be expressed as follows.

가 되므로, 상기 최대요속은 다음과 같이 표현할 수 있다.Further, when the maximum yaw rate signal of F (t) in the graph 2 is larger than the maximum yaw rate

, The maximum yaw rate can be expressed as follows.

는 상기 그래프 2에서 도시된 바와 같이 F(t)가 최대요속에 도달했을 때의 시간축 값에서 최소값을 감한 구간이 되므로, 다음과 같이 표현할 수 있다.And maximum hourly time

Is the interval obtained by subtracting the minimum value from the time axis value when F (t) reaches the maximum velocity as shown in the graph 2, and can be expressed as follows.

The diagnostic parameters calculated in the above manner are transmitted to the amplification and conversion unit 200 for transmission and reception, amplified, and transmitted to the analysis and display unit 400 wirelessly through the wireless transmission and reception unit 300.

The wireless transceiver 300 may use a communication standard and a communication device that are publicly known as wireless transmitting and receiving means and use a Zigbee communication method conforming to the IEEE802.15.4 communication standard. The RS232 asynchronous It is preferable that the wireless transmission / reception module for communication is manufactured and used in the wireless transmission / reception unit 300. [

The transmission module of the WTRU 300 may be a microcontroller using an advanced RISC structure and capable of satisfying high performance and low power consumption and a ZigBee chip for wireless transmission of signal data.

Also, it is preferable to use a microcontroller and a ZigBee wireless communication chip satisfying the same conditions as the above-mentioned transmission module as the reception module of the wireless transceiver unit 300, and to add a serial communication chip to the above configuration.

100: speed measuring device. 110: turbine section. 111: collecting case yo. 111a: Case column.
111h: Through hole. 112: Flow control. 112a: Flow control day. 112h: fastening hole.
113: Turbine case. 113a: Turbine departure prevention stand. 114: Turbine. 114a: turbine blade.
120: Speed checker. 121: Inspector Case. 122: Support panel. 123: during connector.
123a: Rotating pin. 130: Signal measurement section. 131: Optical plate. 131a: Light blocking paint.
131b: slot. 132: Optical element. 133: Light sensor.

Claims (17)

A urine test device for measuring the rate of urine injected in a urinary system for diagnosis of enlarged prostate such as prostate; An amplification conversion unit for amplifying the electric signal measured through the yaw rate testing device; A wireless transceiver for wirelessly transmitting and receiving an electric signal amplified and converted by the amplification and conversion unit; And an analyzing and displaying unit for analyzing and displaying the transmitted electrical signals, wherein the urine testing apparatus comprises: a tester case, which is an outer case of the apparatus; Optical sensor; And a turbine section which is composed of a discontinuous tester in which a light plate is built in a disk-shaped transparent material made of a transparent material and is connected to the yaw rate tester and is provided with a yaw rate measuring turbine rotating in proportion to the yaw rate,
The turbine section includes a cylindrical yaw collecting case; A flow control unit installed inside the urine collecting case; A turbine case installed at a lower end of the urine collecting case; And a turbine installed inside the turbine case, the turbine being installed in a funnel-shaped container having a hole. The apparatus according to claim 1, further comprising: at least one support panel formed at a lower end of the inspector case of the yaw rate tester; And a cylindrical connecting column formed at a lower central portion of the inspecting device case, wherein the yaw rate testing device is mounted on a funnel-shaped container having a hole formed therein. The optical measuring method of claim 2, wherein the inspection device case is formed in a conical shape. The optical measuring method according to claim 2, wherein a rotation pin is inserted into the cylindrical connecting column so as to be rotatable inside the connecting column, and one side of the rotating pin is fixedly connected to a central portion of the disk- Speedometer. delete [3] The apparatus according to claim 1, wherein a cylindrical case column is located at the center of the urine collection case, and the case column and the urine collecting case are connected by at least one case column arm, Wherein a through hole is formed to allow the column to be inserted therethrough. The flow control unit according to claim 1, wherein at least one flow control blade is provided at a side of the flow control unit, and a coupling hole is formed at a central portion of the flow control unit so that the case column can be inserted therethrough. Measuring speedometer. The optical measuring instrument according to claim 1, wherein the turbine case is formed in a cylindrical shape, and a turbine departure prevention member is attached to a lower end thereof. The optical measuring instrument of claim 1 or 4, wherein one or more turbine blades are provided on a side surface of the turbine, and a central portion of the turbine is fixed to the other side of the rotating pin. 2. The optical measuring instrument of claim 1, wherein a surface of a turbine blade formed on a side surface of the turbine is installed at an angle to be perpendicular to a flow control blade formed on a side surface of the flow control part. 3. The optical device as claimed in claim 2, wherein an optical device is positioned at an upper end of the optical plate, and an optical sensor is positioned to face the optical device at a lower end of the optical plate, An optical technique characterized by being painted. 3. The method according to claim 2, wherein a disk-shaped optical plate on which at least one light blocking paint is painted on the surface is rotated in proportion to the yaw rate, so that light emitted from the optical element is pulsed and input to the optical sensor to calculate diagnostic parameters such as yaw rate Wherein the optical measuring instrument is characterized by: The optical measuring method according to claim 1, wherein the wireless transceiver uses a Zigbee communication method conforming to the IEEE 802.15.4 communication standard and uses a wireless transmission / reception module supporting RS232 asynchronous communication. 14. The optical measuring method of claim 13, wherein the transmitting module of the wireless transmitting / receiving module comprises one or more microcontrollers and a ZigBee wireless transmission chip. The optical measuring method of claim 13, wherein the receiving module of the wireless transmitting / receiving module comprises one or more microcontrollers, a ZigBee wireless transmission chip, and a serial communication chip. delete delete

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