A device for simultaneously counting drops and measuring urine

Abstract

The utility model discloses a device of drop counting and metering to urine synchronously, it includes drop counting device and metering device, wherein, drop counting device includes receiving ring, first tension transducer and first connecting rod, uses the mechanical vibration of urine drop to produce as drop counting signal source, gathers mechanical wave and carries out drop counting, for improving the accuracy and real -time performance of urine volume measurement, metering device includes urine collection cup, second connecting rod and second tension transducer, urine is continuously collected through urine collection cup, and the weight is measured through tension transducer, and real -time display accumulative urine volume, and the change of urine generation speed is shown directly.

Description

Technical Field

[0001] This application relates to the field of urine monitoring, specifically to a device for simultaneously counting and measuring urine droplets. Background Technology

[0002] In clinical practice, monitoring changes in urine volume can reflect the filtration and concentrating functions of the kidneys. By collecting urine over a specific time period and combining it with blood tests, the glomerular filtration rate (GFR) can be calculated, which is an important indicator for assessing kidney function. Monitoring changes in urine volume can also be used clinically to aid in disease diagnosis and guide clinical treatment. In experimental teaching of basic medical courses such as physiology, pathophysiology, and pharmacology, monitoring the urine volume of laboratory animals is also necessary.

[0003] Traditional methods for urine measurement primarily involve using an electrode contact dropper to collect the pulse signals generated at the moment the electrodes are switched on and off, and calculating the urine volume by multiplying the number of pulses (number of urine drops) by the volume of the urine drop. However, this method suffers from poor accuracy due to significant errors in measuring the volume of the urine drop. Furthermore, when urine drops fall onto the contact electrode too quickly or too slowly, a "drip hang" phenomenon can occur, causing the contact electrode to remain in a conductive state and preventing accurate urine volume measurement. When medication or pathological factors cause excessively low urine conductivity, the urine drop may not activate the contact electrode, making accurate urine volume measurement impossible. Calculating urine volume by counting the number of drops also lacks real-time analysis of urine volume changes. In experimental teaching, even crude methods such as manual drop counting, weighing, or volume measurement are sometimes used.

[0004] Therefore, it is necessary to improve existing urine monitoring devices to enhance the accuracy and real-time performance of urine monitoring. Utility Model Content

[0005] In view of the above problems, this application provides a device for simultaneously counting and measuring urine to improve the accuracy of urine volume monitoring.

[0006] To achieve the above objectives, this application provides a device for simultaneously dripping and measuring urine, used to monitor urine data of experimental subjects, comprising:

[0007] A urinary catheter, with its end pointing downwards, is used to collect urine from experimental subjects and allow the urine to drip from the end of the catheter.

[0008] A drip counting device for collecting the number of urine drops includes a drip receiving ring, a first tension transducer, and a first connecting rod. The drip receiving ring is located directly below the end of the catheter and is connected to the sensitive beam of the first tension transducer via the first connecting rod. The drip receiving ring is used to convert part of the power of the dripping urine droplets into mechanical vibration of the first connecting rod.

[0009] A weighing device for collecting urine weight data includes a urine collection cup, a second connecting rod, and a second tension transducer. The urine collection cup is located directly below the drip receiving ring and is used to collect urine droplets that fall after passing through the drip receiving ring. The urine collection cup is connected to the sensitive beam of the second tension transducer via the second connecting rod.

[0010] Furthermore, the drip counting device also includes a first support rod, which is supported at one-third of the length of the first connecting rod, so that the first connecting rod forms a lever with the first support rod as the support axis.

[0011] Furthermore, the weighing device also includes a second support rod, which is supported at two-thirds of the length of the second connecting rod, so that the second connecting rod forms a lever with the second support rod as the support axis.

[0012] Furthermore, it also includes the upright plate, the base plate, the first cross arm, and the second cross arm;

[0013] The upright plate is vertically fixed to the base plate, the second horizontal arm is located below the first horizontal arm, the first horizontal arm, the second horizontal arm and the upright plate are an integral structure, or one end of the first horizontal arm and one end of the second horizontal arm are respectively horizontally fixed to the upright plate;

[0014] The first support rod is horizontally mounted on the first cross arm, and the second support rod is horizontally mounted on the second cross arm.

[0015] Furthermore, the upright plate, the first horizontal arm, and the second horizontal arm are each composed of two parallel plates.

[0016] Furthermore, it also includes a top plate, which is horizontally disposed on the top of the upright plate and parallel to the first cross arm, and the end of the catheter is fixed to the top plate.

[0017] Furthermore, the drip receiving ring is circular, the aperture of the drip receiving ring is 2-3 mm, and the surface of the drip receiving ring is smooth.

[0018] Furthermore, the end of the second connecting rod is provided with a cup holder adapted to the urine collection cup, and the urine collection cup and the cup holder are detachably connected.

[0019] Unlike existing technologies, the above-mentioned technical solution provides a device for simultaneously counting and measuring urine drops, comprising a drop counting device and a weighing device. The drop counting device includes a drop receiving ring, a first tension transducer, and a first connecting rod, using the mechanical vibration generated by the urine dripping as the drop counting signal source to collect mechanical waves for drop counting. To improve the accuracy and real-time performance of urine volume measurement, the weighing device includes a urine collection cup, a second connecting rod, and a second tension transducer. The urine collection cup continuously collects urine, and the tension transducer measures the weight, displaying the cumulative urine volume in real time and providing a visual indication of changes in the urine generation rate.

[0020] In some embodiments, the drop counting device further includes a first support rod supported at one-third of the length of the first connecting rod, thereby forming a lever that amplifies the mechanical vibration signal of the urine drop and improves the accuracy of detection.

[0021] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0022] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.

[0023] In the accompanying drawings of the instruction manual:

[0024] Figure 1 This is a schematic diagram of the device for simultaneously counting and measuring urine as described in a specific embodiment;

[0025] Figure 2 This is a schematic diagram of the structure connecting the first tension transducer and the first connecting rod in a specific implementation method;

[0026] Figure 3 The urine drop count waveform and weighing waveform data were collected for a specific implementation method.

[0027] The reference numerals used in the above figures are explained as follows:

[0028] 1. Urinary catheter; 10. Urine droplet; 2. Drip receiving ring; 21. First connecting rod; 22. First support rod; 23. First cross arm; 3. Urine collection cup; 31. Cup holder; 32. Second connecting rod; 33. Second support rod; 34. Second cross arm;

[0029] 4. Base plate; 5. Vertical plate; 6. Second tension transducer; 7. First tension transducer; 8. Top plate; 61. Second mounting platform; 71. First mounting platform; 72. Fixing rod; 73. Wiring harness; 74. Sensitive beam; Detailed Implementation

[0030] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0031] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0032] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0033] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0034] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0035] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0036] As understood in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0037] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0038] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0039] Please see Figures 1 to 3 This embodiment provides a device for simultaneously counting and measuring urine. This device can be used to monitor the urine data of experimental subjects, that is, it can simultaneously count and weigh the urine of experimental subjects. The device includes: a urine catheter 1, a drip counting device, and a weighing device.

[0040] The catheter 1 is positioned with its end pointing downwards to collect urine from the experimental subject, allowing the urine to drip from the end of the catheter 1. A drip counting device is used to collect the number of urine drops and includes a drip receiving ring 2, a first tension transducer 7, and a first connecting rod 21. The drip receiving ring 2 is located directly below the end of the catheter 1 and is connected to the sensitive beam 74 of the first tension transducer 7 via the first connecting rod 21. The drip receiving ring 2 converts part of the power of the dripping urine droplets 10 into mechanical vibration of the first connecting rod 21.

[0041] The weighing device is used to collect the weight data of urine and includes a urine collection cup 3, a second connecting rod 32 and a second tension transducer 6. The urine collection cup 3 is located directly below the drip receiving ring 2 and is used to collect urine droplets 10 that fall after passing through the drip receiving ring 2. The urine collection cup 3 is connected to the sensitive beam 74 of the second tension transducer 6 through the second connecting rod 32.

[0042] The experimental subjects can be rabbits, mice, etc. The urinary catheter 1 can be made of a flexible tube, and one end of the catheter 1 is inserted into the urethra of the experimental subject to collect urine. Figure 1 As shown, the other end of the urinary catheter 1 is fixed vertically downwards, so that the collected urine can form urine droplets 10 that drip vertically.

[0043] Depending on the measurement object (human or animal), select a urine collection cup 3 of appropriate capacity, and connect it to a tension transducer of appropriate range via a lever to measure the cumulative urine volume in real time.

[0044] The mechanical vibration generated when urine droplet 10 passes through drop-receiving ring 2 is transmitted to the first tension transducer 7; the urine collected by urine collection cup 3 below drop-receiving ring 2 is weighed by the second tension transducer 6 at the other end of the second connecting rod 32. The urine drop counting and measurement signals collected by the two tension transducers are transmitted to the biosignal acquisition and analysis system via wired or wireless means, which can obtain the urine volume information of the patient or test animal in real time and accurately, including the number of urine droplets 10 per unit time, the number of milliliters of urine per unit time, and the cumulative urine volume in any time period.

[0045] like Figure 1 As shown, in this embodiment, the drip-counting device further includes a first support rod 22, which is supported at one-third of the length of the first connecting rod 21, forming a lever with the first support rod 22 as its support axis. Since the first support rod 22 is supported at one-third of the length of the first connecting rod 21, the first support rod and the first connecting rod constitute a 1:2 force-saving lever. A small hole can be drilled at one-third of the length of the first connecting rod 21 using a miniature electric drill, and then the first support rod passes through this hole, thus serving as the support axis of the first connecting rod.

[0046] Since the mass of a single drop of urine is less than 50 mg, the vibration signal generated when the urine falls onto the receiving ring 2 is relatively weak. In order to improve the monitoring sensitivity, a lever is used in this embodiment to amplify the mechanical vibration signal of the urine drop 10.

[0047] like Figure 1 As shown, to facilitate the installation of the urinary catheter 1, the first tension transducer 7, and the second tension transducer 6, the device for simultaneously dripping and measuring urine also includes: a vertical plate 5, a base plate 4, a first horizontal arm 23, a second horizontal arm 34, and a top plate 8. The top plate 8 is horizontally positioned on top of the vertical plate 5 and parallel to the first horizontal arm 23. A fixing groove is provided at the end of the top plate 8, and the end of the urinary catheter 1 is fixed to the fixing groove of the top plate 8.

[0048] The upright plate 5 is vertically fixed to the base plate 4, and the second horizontal arm 34 is located below the first horizontal arm 23, and the two are parallel to each other. In this embodiment, the first horizontal arm 23, the second horizontal arm 34, and the upright plate 5 can be an integral structure, that is, the first horizontal arm 23, the second horizontal arm 34, and the upright plate 5 are a single structural component. The upright plate, the first horizontal arm 23, and the second horizontal arm 34 can be cut from a single piece of acrylic sheet, with the first horizontal arm 23 and the second horizontal arm 34 extending from the upright plate. However, in this application, the first horizontal arm 23, the second horizontal arm 34, and the upright plate are not limited to an integral structure. In other embodiments, the first horizontal arm 23 and the second horizontal arm 34 are separate structural components from the upright plate, and are fixedly connected by bolts, structural adhesive, etc. One end of the first horizontal arm 23 is horizontally fixed to the upright plate 5, and the second horizontal arm 34 is horizontally fixed to the upright plate 5 and located below the first horizontal arm 23. Figure 1 As shown, in this embodiment, the upright plate 5, the first horizontal arm 23, and the second horizontal arm 34 are a single integrated structure, which provides strong overall integrity, high structural strength, and convenient installation. In other embodiments, the upright plate 5, the first horizontal arm 23, and the second horizontal arm 34 can also be made as single structural components, each of which is a separate structural component (i.e., a non-integrated structure), and its structural component can be plate-shaped or beam-shaped. The first support rod 22 is horizontally mounted on the first horizontal arm 23, and the second horizontal arm 34 is horizontally mounted on the second horizontal arm 34. The weighing device also includes a second support rod 33, which is supported at two-thirds of the length of the second connecting rod 32, so that the second connecting rod 32 forms a lever with the second support rod 33 as the support axis. The second support rod is supported at two-thirds of the length of the second connecting rod, therefore the first support rod and the first connecting rod form a 2:1 force-multiplying lever. A small hole can be drilled at two-thirds of the distance from the second link using a miniature electric drill, and then the second support rod passes through the hole to serve as the support shaft for the second link.

[0049] A first mounting platform 71 is provided at the connection between the first cross arm 23 and the vertical plate 5 for mounting the first tension transducer 7 and a fixing rod 72 for fixing the first tension transducer 7. Similarly, a second mounting platform 61 is provided at the connection between the second cross arm 34 and the vertical plate 5 for mounting the second tension transducer 6 and a fixing rod 72 for fixing the second tension transducer 6.

[0050] To facilitate the replacement of the urine collection cup 3, a cup holder 31 adapted to the urine collection cup 3 is provided at the end of the second connecting rod 32, and the urine collection cup 3 and the cup holder 31 are detachably connected.

[0051] The first tension transducer 7 and the second tension transducer 6 can be Shanghai Jide's JH-2 or HU-1 type tension transducers, with a detection range of 0~50g. For example... Figure 2 As shown, one end of the first connecting rod 21 is fixed to the sensitive beam 74 of the first tension transducer 7, and the drip receiving ring 2 is disposed at the other end of the first connecting rod 21. The wiring harness 73 interface of the first tension transducer 7 and the second tension transducer 6 is connected to a signal receiver, such as the BL-420F biological function experimental system, through which urine volume information can be automatically acquired.

[0052] When installing the first tension transducer 7 and the second tension transducer 6, the fixing rod 72 of the first transducer is horizontally fixed to the bracket of the first mounting platform 71, and the fixing rod 72 of the second transducer is horizontally fixed to the bracket of the second mounting platform 61. During installation, it is necessary to ensure that the direction and the plane of the force-sensitive beam 74 (spring sheet) are perpendicular, and that the tension direction of the sensor is correct. The force measurement direction should point towards the side with the larger gap at the spring sheet outlet. The wiring harness 73 of the first and second transducers includes four wires, 1-4, where wire "1" is the positive terminal of the power supply (3-6VDC), wire "3" is the negative terminal of the power supply, and wires "2" and "4" are for signal output.

[0053] This device can simultaneously count and measure urine droplets, eliminating the need to estimate urine volume using urine droplet volume or to manually measure urine volume separately, thus reducing the risk of urine contamination and lessening the workload of monitoring.

[0054] The procedure for using this device that simultaneously counts and measures urine is as follows:

[0055] One end of the catheter 1 is inserted into the bladder of the monitored subject, and the other end is fixed in the fixing groove of the top plate 8 of this sensing device. After passing through the drip receiving ring 2 connected to the end of the first connecting rod 21, the urine drop 10 enters the urine collection cup 3 at the end of the lower second connecting rod 32.

[0056] Connect the first tension transducer 7 and the second tension transducer 6 to the BL-420F biological function experimental system, collect the signal amplified by the lever, and directly obtain urine volume information on the system's general information display area.

[0057] like Figure 3 As shown, the gain is 50mV, the time constant is DC, the filter frequency is 2Hz, and the urine volume per minute is 3mL (1g is approximately 1mL).

[0058] In this embodiment, the drip receiving ring 2 is circular with an aperture of 2-3 mm and a smooth surface. Of course, the drip receiving ring 2 is not limited to a circle; it can also be elliptical, rectangular, or other shapes. The drip receiving ring 2 can be made of metal wire or a similar component, and the first connecting rod 21 can be made of copper tubing or a similar component. For example, a small loop made from one end of an iron wire can be used as the drip receiving ring 2 to receive urine drips and minimize urine droplet 10 residue. The iron wire is connected to the first tension transducer 7 via the first connecting rod made of copper tubing. The minute deformation of the lever when urine drips into the drip receiving ring 2 effectively amplifies this small physical change and transmits it to the connected first tension transducer 7, enabling the first tension transducer 7 to accurately detect the lever deformation and convert the mechanical signal into an electrical signal. This embodiment utilizes the principle of a lever (i.e., a force-saving lever), so that even very small deformations can be captured by the sensor and converted into measurable electrical signals.

[0059] The lower second link 32 is connected to a urine collection cup 3, which collects urine dripping from the upper drip ring 2. Similarly, leveraging the lever property, the mechanical changes caused by the weight of the urine are transmitted to the second tension transducer 6 connected to the other end of the second link 32. This design allows for precise capture of the physical changes during urine dripping and collection. Finally, by connecting to a biosignal acquisition and analysis system, these data changes are recorded in real time and properly stored, providing a detailed data foundation for subsequent analysis.

[0060] In summary, in this embodiment, the mechanical vibration generated by urine droplets is used as the drop counting signal source, and mechanical waves are collected for drop counting. To improve the accuracy and real-time performance of urine volume measurement, urine is continuously collected through a urine collection cup 3, and its weight is measured by a tension transducer. The cumulative urine volume is displayed in real time, and the change in urine generation rate is visually displayed through a "urine volume-time" curve. Since the mass of a single drop of urine is less than 50 mg, the vibration signal generated when the urine drips onto the receiving ring 2 is relatively weak. To improve monitoring sensitivity, a lever is used to amplify the mechanical vibration signal of the urine droplet 10. Depending on the measurement object (human or animal), a urine collection cup 3 of appropriate capacity is selected, and the cumulative urine volume is measured instantly by connecting it to a tension transducer of appropriate range via a lever.

[0061] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A device for simultaneously counting and measuring urine droplets, used to monitor urine data of experimental subjects, characterized in that, include: A urinary catheter, with its end pointing downwards, is used to collect urine from experimental subjects and allow the urine to drip from the end of the catheter. A drip counting device for collecting the number of urine drops includes a drip receiving ring, a first tension transducer, and a first connecting rod. The drip receiving ring is located directly below the end of the catheter and is connected to the sensitive beam of the first tension transducer via the first connecting rod. The drip receiving ring is used to convert part of the power of the dripping urine droplets into mechanical vibration of the first connecting rod. A weighing device for collecting urine weight data includes a urine collection cup, a second connecting rod, and a second tension transducer. The urine collection cup is located directly below the drip receiving ring and is used to collect urine droplets that fall after passing through the drip receiving ring. The urine collection cup is connected to the sensitive beam of the second tension transducer via the second connecting rod.

2. The device for simultaneously dripping and measuring urine according to claim 1, characterized in that, The drip counting device also includes a first support rod, which is supported at one-third of the length of the first connecting rod, so that the first connecting rod forms a lever with the first support rod as the support axis.

3. The device for simultaneously dripping and measuring urine according to claim 2, characterized in that, The weighing device also includes a second support rod, which is supported at two-thirds of the length of the second connecting rod, so that the second connecting rod forms a lever with the second support rod as the support axis.

4. The device for simultaneously dripping and measuring urine according to claim 3, characterized in that, It also includes the upright plate, the base plate, the first cross arm, and the second cross arm; The upright plate is vertically fixed to the base plate, the second horizontal arm is located below the first horizontal arm, the first horizontal arm, the second horizontal arm and the upright plate are an integral structure, or one end of the first horizontal arm and one end of the second horizontal arm are respectively horizontally fixed to the upright plate; The first support rod is horizontally mounted on the first cross arm, and the second support rod is horizontally mounted on the second cross arm.

5. The device for simultaneously dripping and measuring urine according to claim 4, characterized in that, The vertical plate, the first horizontal arm, and the second horizontal arm are each composed of two parallel plates.

6. The device for simultaneously dripping and measuring urine according to claim 4, characterized in that, It also includes a top plate, which is horizontally positioned on top of the upright plate and parallel to the first cross arm, and the end of the catheter is fixed to the top plate.

7. The device for simultaneously dripping and measuring urine according to claim 1, characterized in that, The drip receiving ring is circular, with an aperture of 2-3 mm, and its surface is smooth.

8. The device for simultaneously dripping and measuring urine according to claim 1, characterized in that, The end of the second connecting rod is provided with a cup holder adapted to the urine collection cup, and the urine collection cup and the cup holder are detachably connected.

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