RU127609U1 - PORTABLE UROFLOWMETER - Google Patents

Abstract

1. Uroflowmeter portable, containing a urine receiving funnel, a cylindrical reservoir for collecting urine, a signal processing unit, characterized in that the cylindrical reservoir for collecting urine is a capacity for collecting urine, and the signal processing unit is made in the form of a weight sensor, and the urine receiving funnel is located on one axis with the urine collection container and above it, while the urine collection container is located on the weight sensor, which is connected to the input of the tablet computer, the output of which is connected to the printing device stvom.2. The device according to claim 1, characterized in that the weight element of the weight sensor is a strain gauge. The device according to claim 1 or 2, characterized in that the volume of the urinary funnel does not exceed 1000 ml. The device according to claim 1, characterized in that the capacity for collecting urine is cylindrical. The device according to claim 1, characterized in that the weight sensor consists of a series-connected strain gauge sensor, a controller and an analog-to-digital converter. The device according to claim 1, characterized in that the measurement process begins when the weight of incoming urine exceeds 5 g. 7. The device according to claim 1, characterized in that the measurement frequency is 5 measurements per second.

Description

The utility model relates to medical equipment, namely, devices for diagnostic purposes and, in particular, for urological research used in clinics, laboratories, etc., both in stationary and field conditions.

A device is known for measuring the micration rate and volume of urine excreted, taken as a prototype (description of the invention to the patent of the Russian Federation No. 2082317, АВВ 5/20, priority from 07/20/97).

This device contains a cylindrical urine collection tank with a lid, a float located inside it and a transducer for moving the float into an electric signal, the lid of the tank is made opaque and the radiation sources and a photosensitive element of the converter are located on it, and the photosensitive element is connected to the input of the signal processing unit. In this case, the photosensitive element is located in the center of the opaque cover, and light sources are installed symmetrically around it at the periphery of the cover with the exception of the possibility of direct radiation falling on the photosensitive element.

The disadvantage of this device is, firstly, its relative complexity. Secondly, the need before each measurement cycle to calibrate the device to compensate for measurement errors due to fluctuations in the initial level of installation of the float. Thirdly, after each measurement cycle, when changing the patient being examined, it is necessary to flush the inlet pipe, horizontal channel and the working tank, for which it is necessary to make a relatively complicated dismantling of the device.

The above disadvantages do not allow the effective use of this device in the field, i.e. as a mobile, easily portable and customizable portable device.

The objective of the claimed utility model is the creation of a portable device that allows you to more accurately and efficiently estimate the volumetric flow rate of urine, i.e. the amount of urine passing through the cross section of the urethra per unit time, which has high efficiency, accuracy and reliability in operation, ease of use and, in addition, easy interchangeability and disinfection of the urine collection container, characterized by its simplicity of design, relatively low power consumption and cost devices.

The tasks of creating the claimed utility model are:

- ensuring ease of use;

- ensuring the mobility of the device;

- ensuring the operational preparation of the device for therapeutic research (ease of exchange if necessary urinary funnel and capacity for collecting urine);

- simplification of the device.

The technical result consists in increasing the reliability and efficiency of the device in the process of processing the source fluid (urine), as well as simplifying and cheapening the design.

The technical result is achieved in that in a device for processing urine containing a metal stand, a urine receiving funnel, a container for collecting urine, a weight sensor is introduced with an integrated controller and an analog-to-digital converter, a computer (for example, a tablet computer) with a complex of data-specific software research, printing device (for example, laser printer), connecting cables (for example, USB cables).

The proposed device is presented in figure 1 - figure 3.

Figure 1 presents a block diagram of a device.

Figure 2 presents a General view of the device with a tablet computer.

Figure 3 presents a listing of a specific uroflogram.

In particular, the uroflowgram includes a graph of the change in the weight of 2 urine entering the urine funnel (upper graph) and a change in the urine flow rate (lower graph). Also, the uroflowgram contains the following data:

- Name of the patient under study;

- date and time the start of the study;

- the volume of the test urine;

- average urine flow rate;

- maximum urine flow rate;

- time (duration) of the study.

The proposed device according to figure 1 contains a metal rack 1, designed to secure the urine funnel 2 to it, a container for collecting urine 3 located on the same axis and under the urine funnel 2 and mounted on the weight sensor 4, which is connected by cable 5 to the input of the computer, in particular, a tablet computer 6 with a set of special software (software) for these studies, the output of which is connected by a cable 7 to a printing device 8, while the weight sensor consists of a series-connected tensode a sensor whose output is connected to the input of the controller, the output of which is connected to the input of an analog-to-digital converter (ADC). The power supply of the load cells 4 from the power supply 9. The power of the tablet computer 6 from the power supply 10 and the power of the printing device 8 from the power supply 11.

The operation of the device is as follows. The patient’s urine stream with variable speed enters the urine funnel 2 and, falling on its lateral conical surface, flows to its neck and then into the urine collection tank 3. The weight sensor 4 measures the dynamic change in the volume of fluid and transmits it via cable 5 in real time the change in the volume of fluid at the input of the tablet computer 6 in the form of graphs of the volume and rate of increase in weight (mass) of the urine excreted by the patient per unit time, which are recorded on the display of the tablet computer 6. Ronchi 2 urine is weighed continuously, so urination graph has an integral form, depending on the rate of change of weight (mass) of the selected patient urine per unit time. The urine flow rate is defined as ΔV / ΔT - the ratio of the change in the volume of the patient's urine entering the urine funnel 2 to the time interval during which urination occurs. The start and end of the measurement process is automatic. After the measurement process, the following indicators are calculated: the volume of urine excreted, the average flow rate of urine, the maximum flow rate of urine and the time of urination. All received data and graphs are recorded on the uroflowgram display of the tablet computer 6.

As a container for collecting urine, different types of containers with a maximum volume of up to 1000 ml can be used.

An example of a specific implementation of the device.

The manufactured urine test device with computer processing of the obtained data has the following parameters:

- recorded urine volume - up to 1000 ml;

- type of sensor - weight;

- display - 10.1 ", color, touch, liquid crystal;

- beginning and end of measurements - automatic;

- visualization of graphs of volume and flow rate on the display in real time;

- measured parameters of the study: volume, average flow rate, maximum flow rate, urination time;

- printing of research results;

- communication of the weight sensor with the tablet computer via cable (up to 5 meters);

- chair - toilet for uroflometry (optional);

- This device can operate on batteries.

The basic equipment of the device includes:

- power supply - 3 pcs.

- USB cable - 2 pcs.

- weight sensor - 1 pc.

- a tablet computer with a set of software for research - 1 pc.

- capacity for collecting urine - 1 pc.

- urinary funnel - 1 pc.

- metal rack - 1 pc.

The algorithm of this device.

1. Power supplies are connected to the corresponding nodes of the device.

2. The operating system is loading.

3. The Uroflowmeter program is launched.

4. The urinary funnel is fixed on a metal stand.

5. A urine collection tank is installed on the weight sensor.

6. The Tara button on the computer is pressed to exclude the weight of the urine collection container from the measurements.

7. Pressing the “Automatic” button to exit the device to readiness for measurements.

8. A change in the weight of urine entering the urine collection tank by more than 5 grams is the beginning of the measurement.

9. Measurement of urine weight with a weight sensor (in particular, a strain gauge that converts the pressure of the weight of the urine collection container into an electrical signal). The measurement frequency is 5 measurements per second.

10. Processing by the controller of data received from the strain gauge.

11. Converting data from the controller into digital form using the ADC (analog-to-digital converter).

12. Display of data from the ADC of the weight sensor on the computer display in the form of a graph.

13. If there is no change in weight during a given time interval (set by the operator (doctor, nurse, etc.), the measurement stops automatically.

14. Calculation of the average flow rate, maximum flow rate, fluid volume and measurement time, based on the data obtained from the measurement.

15. Printing data.

Sources of information taken into account.

1. Description of the invention to the patent of the Russian Federation No. 2082317, АВВ 5/20, priority from 07/20/97.

Claims (7)

1. Uroflowmeter portable, containing a urine receiving funnel, a cylindrical reservoir for collecting urine, a signal processing unit, characterized in that the cylindrical reservoir for collecting urine is a capacity for collecting urine, and the signal processing unit is made in the form of a weight sensor, and the urine receiving funnel is located on one axis with the urine collection container and above it, while the urine collection container is located on the weight sensor, which is connected to the input of the tablet computer, the output of which is connected to the printing device stvom. 2. The device according to claim 1, characterized in that the weight element of the weight sensor is a strain gauge. 3. The device according to claim 1 or 2, characterized in that the volume of the urinary funnel does not exceed 1000 ml. 4. The device according to claim 1, characterized in that the capacity for collecting urine is made of a cylindrical shape. 5. The device according to claim 1, characterized in that the weight sensor consists of a series-connected strain gauge sensor, controller and analog-to-digital Converter. 6. The device according to claim 1, characterized in that the measurement process begins when the weight of incoming urine exceeds 5 g. 7. The device according to claim 1, characterized in that the measurement frequency is 5 measurements per second.

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