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WO2007148892A1 - Urine mass measuring sensor and monitoring system using the same - Google Patents

Urine mass measuring sensor and monitoring system using the same Download PDF

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Publication number
WO2007148892A1
WO2007148892A1 PCT/KR2007/002913 KR2007002913W WO2007148892A1 WO 2007148892 A1 WO2007148892 A1 WO 2007148892A1 KR 2007002913 W KR2007002913 W KR 2007002913W WO 2007148892 A1 WO2007148892 A1 WO 2007148892A1
Authority
WO
WIPO (PCT)
Prior art keywords
urine
measuring sensor
load cell
mass measuring
holding member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2007/002913
Other languages
French (fr)
Inventor
Kye Ruck Jun
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University Industry Cooperation Foundation of Pusan National University
Original Assignee
University Industry Cooperation Foundation of Pusan National University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University Industry Cooperation Foundation of Pusan National University filed Critical University Industry Cooperation Foundation of Pusan National University
Publication of WO2007148892A1 publication Critical patent/WO2007148892A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G17/00—Apparatus for or methods of weighing material of special form or property
    • G01G17/04—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
    • G01F1/58—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/20—Measuring for diagnostic purposes; Identification of persons for measuring urological functions restricted to the evaluation of the urinary system
    • A61B5/201—Assessing renal or kidney functions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/20—Measuring for diagnostic purposes; Identification of persons for measuring urological functions restricted to the evaluation of the urinary system
    • A61B5/207—Sensing devices adapted to collect urine
    • A61B5/208—Sensing devices adapted to collect urine adapted to determine urine quantity, e.g. flow, volume
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
    • A61B10/0045—Devices for taking samples of body liquids
    • A61B10/007—Devices for taking samples of body liquids for taking urine samples

Definitions

  • the present invention relates to a urine mass measuring sensor and a monitoring system using the same, and more particularly, to a urine mass measuring sensor and a monitoring system using the same adapted to measure the quantity of urine excreted from the body of a patient at home, a nursing home or a hospital through a tube inserted into the patient's urethra and easily monitor the measured quantity of urine.
  • Background Art
  • the urine mass measuring device includes a urine collecting unit, a speed converter formed under the urine collecting unit to change the speed of urine, a motor for rotating the speed converter at a predetermined speed, a motor speed measurement unit for measuring a speed variation of the motor, a motor current measurement unit for measuring the current of the motor, a signal operation unit for calculating a urine mass using data measured by the motor speed measurement unit and the motor current measurement unit, and an output unit for outputting the result calculated by the signal operation unit to measure the urine mass.
  • the aforementioned urine mass measuring device for toilet bowls can measure the urine mass only when a user normally excretes urine to the urine collecting unit to operate the speed converter. Accordingly, it can be used only for patients who can freely move or suspected cases and cannot be used for patients who cannot freely move such as patients who underwent operations, seriously ill patients, patients having an acute renal failure, and unconscious patients.
  • a conventional method for measuring the quantity of urine of a patient who cannot freely move such as a patient who underwent an operation, a seriously ill patient, a patient having an acute renal failure, and an unconscious patient, inserts a tube into the patient's urethra, collects the urine excreted from the body of the patient through the tube using a collecting pack, checks the quantity of urine through a scale indicated on the collecting pack, records the checked quantity of urine on a check list, and uses the recorded urine mass for diagnosis and management of the patient. Disclosure of Invention Technical Problem
  • the conventional urine mass measuring method is very inconvenient because a person who cares the patient, a doctor or a nurse should manually confirm and check the quantity of urine. Furthermore, the quantity of urine is checked using the scale indicated on the collecting pack, and thus it is impossible to accurately measure the quantity of urine. Moreover, the conventional urine mass measuring method cannot collect detailed data such as the quantity of urine per unit time or the frequency of excretions because it just collects urine in the collecting pack. Accordingly, it is impossible to perform close diagnosis and medical treatment according to continuous monitoring.
  • a primary object of the present invention is to provide a urine mass measuring sensor and a monitoring system using the same adapted to automatically measure and monitor data such as the quantity of urine excreted from the body of a patient through a tube inserted into the patient's urethra, the quantity of urine per unit time and the frequency of excretions to perform efficient diagnosis and medical treatment.
  • the quantity of urine is automatically measured, and thus a person who cares a patient or a doctor or a nurse can easily confirm and manage the quantity of urine of the patient without confirming a urine container or forming a check list. Furthermore, the quantity of urine is measured very precisely. Moreover, detailed data such as the quantity of urine per unit time and the number or excretions can be obtained so that the urine mass measuring sensor is efficiently used for medical purpose and precise diagnosis and medical treatment can be performed according to continuous monitoring.
  • FIG. 1 is a perspective view illustrating a setting state of a urine mass measuring sensor according to a preferred embodiment of the present invention
  • FlG. 2 is an exploded perspective view of the urine mass measuring sensor according to the preferred embodiment of the present invention
  • FlG. 3 is a perspective view illustrating an assembled state of the urine mass measuring sensor according to the preferred embodiment of the present invention.
  • FlG. 4 is a view for explaining the technical spirit of a monitoring system using the urine mass measuring sensor according to the present invention.
  • FlG. 5 is a view for explaining the operation of the monitoring system using the urine mass measuring sensor according to the present invention.
  • FlG. 6 is a perspective view of the monitoring system using the urine mass measuring sensor according to a preferred embodiment of the present invention.
  • FlG. 7 is a block diagram of the monitoring system using the urine mass measuring sensor according to the preferred embodiment of the present invention. Best Mode for Carrying Out the Invention
  • FlG. 1 is a perspective view illustrating a setting state of a urine mass measuring sensor according to a predetermined embodiment of the present invention
  • FlG. 2 is an exploded perspective view of the urine mass measuring sensor according to the preferred embodiment of the present invention
  • FlG. 3 is a perspective view illustrating an assembled state of the urine mass measuring sensor illustrated in FlG. 2.
  • the urine mass measuring sensor 100 includes a container holding member 110 for hanging a urine collecting container 10, and a load cell 120 to which the container hanging member 110 is connected.
  • the load cell 120 outputs a predetermined electric signal proportional to the weight of urine collected in the urine collecting container 10 hanging from the container holding member 110.
  • the container holding member 110 consists of a bar-shaped part, a hook part 112 connected to the bottom end of the bar-shaped part, and a fastening part formed at the top end of the bar-shaped part.
  • the urine collecting container 10 hangs from the hook part 112 and the fastening part 114 is fastened to the load cell 120.
  • the load cell 120 can be a bending type load cell in the form of a rectangular bar, one side of which is fixed to a predetermined place, such that a degree to which the load cell is bent according to a load applied thereto is measured and an electric signal corresponding to the load is output.
  • the load cell 120 is not limited to the bending type load cell and it can be constructed in various forms.
  • a load cell supporting member 130 is coupled with one side of the load cell 120 in order to fix the load cell 120 to the predetermined place. As illustrated in FlG. 2, one side of the load cell supporting member 130 is bent and fixed to the top of one side of the load cell 120 by fastening members 140.
  • the containing holding member 110 is coupled with the load cell
  • the urine collecting containing 10 connected to a tube 20 inserted into the urethra of a patient hangs from the hook part 112 of the container holding member 110.
  • the urine is filled in the collecting container 10 through the tube 20 and the weight of the urine is applied to the container holding member 110, and thus the load cell 120 outputs an electric signal corresponding to the weight of urine.
  • FlG. 4 is a view for explaining the technical spirit of a monitoring system using the urine mass measuring sensor according to the present invention
  • FlG. 5 is a view for explaining the operation of the monitoring system using the urine mass measuring sensor according to the present invention.
  • the monitoring system using the urine mass measuring sensor includes the collecting container 10 for collecting urine excreted from the body of a patient through the tube inserted into the patient's urethra, the urine mass measuring sensor 100 outputting an electric signal corresponding to the quantity of urine filled in the urine collecting container 10, and a system controller 200 for processing the electric signal output from the urine mass measuring sensor 100 and displaying the processed data through a display means 234.
  • the urine mass measuring sensor 100 includes the container holding member 110 for hanging the collecting container 10 and the load cell 120 outputting a predetermined electric signal proportional to the weight of urine filled in the collecting container 10 hanging from the container holding member 110.
  • the system controller 200 amplifies and filters the electric signal output from the urine mass measuring sensor 100 and converts the amplified and filtered signal into a digital signal to obtain data.
  • the obtained data is applied to a computer system, processed into data such as the quantity of excreted urine, the quantity of urine per unit time and the frequency of excretions, and then displayed by the display means.
  • FlG. 6 is a perspective view of the monitoring system using the urine mass measuring sensor according to the present invention
  • FlG. 7 is a block diagram of the monitoring system using the urine mass measuring sensor according to the present invention.
  • the monitoring system using the urine mass measuring sensor includes the urine mass measuring sensor 100 and the system controller 200 for processing a signal output from the urine mass measuring sensor 100 and displaying the processed signal.
  • the system controller 200 includes a signal processor 210 for processing the electric signal output from the urine mass measuring sensor 100, an analog-to-digital converter 220 for converting the analog signal output from the signal processor 210 into digital data, and a computer system 230 receiving the digital data and processing the digital data according to a predetermined program.
  • the signal processor 210, the analog-to-digital converter 220 and the computer system 230 are housed in a monitoring case 300 in a box shape, as illustrated in FlG. 6.
  • the urine mass measuring sensor 100 includes the container holding member 110 for hanging the urine collecting container 10, the load cell 120 that is connected with the container holding member 110 and outputs a predetermined electric signal proportional to the weight of urine filled in the urine collecting container 10, and the load cell supporting member 130 for fixing the load cell 120 to the monitoring case 300.
  • the load cell supporting member 130 is coupled with a support bar 310 protruded from the monitoring case 300.
  • the signal processor 210 includes an amplifier 212 that is electrically connected to the load cell 120 of the urine mass measuring sensor 100 and amplifies the electric signal output from the load cell 120, and a filter 214 for filtering noise of the signal amplified by the amplifier 212.
  • the computer system 230 includes a controller 231, a data storage unit 232 and a program storage unit 233.
  • the computer system 230 receives the digital signal output from the analog-to-digital converter 220, processes the digital signal into data such as the quantity of excreted urine, the quantity of urine per unit time and the frequency of excretions using a program stored in the program storage unit 233, and stores the data in the data storage unit 232 under the control of the controller 231.
  • the computer system 230 further includes the display means 234 such as a liquid crystal display (LCD) monitor for displaying the data including the quantity of excreted urine, the quantity of urine per unit time and the frequency of excretions, an input unit 235 including buttons by which an input signal is input in order to extract the data stored in the data storage unit 232, and a lamp 236 including light-emitting diodes for indicating a data processing state and an operating state.
  • the display means 234 such as a liquid crystal display (LCD) monitor for displaying the data including the quantity of excreted urine, the quantity of urine per unit time and the frequency of excretions
  • an input unit 235 including buttons by which an input signal is input in order to extract the data stored in the data storage unit 232
  • a lamp 236 including light-emitting diodes for indicating a data processing state and an operating state.
  • the display means 234 and the input unit 235 are arranged on the top face of the monitoring case 300 such that a user and an observer can easily use and recognize.
  • a correction balance 330 for correcting an error in the load cell 120 of the urine mass measuring sensor 100 and a ring 320 for holding the correction balance 330 are formed at one side of the monitoring case 300.
  • the monitoring case 300 and the urine mass measuring sensor 100 include a plurality of fixing pieces that fix the tube 20 inserted into the patient's urethra and connected with the urine collecting container 10 and prevent the weight of the tube 20 from being applied to the load cell 120 to reduce an error in the measurement of the quantity of urine. That is, the fixing pieces fix the tube 20 connected with the urine collecting container 10 at positions (for example, the sides of the support bar 310 and the load cell 120) where the weight of the tube 20 is not applied to the load cell 120.
  • the electric signal output from the load cell 120 is amplified by the amplifier 212, filtered by the filter 214, converted into a digital signal by the analog-to-digital converter 220, and then applied to the controller 231.
  • the urine excreted from the patient's urethra is sensed by the urine mass measuring sensor 100 in real time so that the quantity of excreted urine and the frequency of excretions are repeatedly applied to the controller 231 through the aforementioned signal processing routine.
  • the controller 231 can process the digital signal output from the analog-to-digital converter 220 into substantial data such as the quantity of excreted urine, the quantity of urine per unit time and the frequency of excretions in real time.
  • the controller 231 processes the digital signal into the substantial data such as the quantity of excreted urine, the quantity of urine per unit time and the frequency of excretions in real time using the program stored in the program storage unit 233.
  • the substantial data is displayed on the display means, and simultaneously, stored in the data storage unit 232.
  • a person who cares the patient or a doctor or a nurse can confirm the data such as the quantity of excreted urine, the quantity of urine per unit time and the frequency of excretions through the display means 234 in real time or by operating the input unit 235 to check the state of the patient or perform correct diagnosis and medical treatment.
  • a urine mass measuring sensor comprising a container holding member for hanging a urine collecting container for collecting urine excreted from the body of a patient, and a load cell connected with the container holding member for outputting a predetermined electric signal proportional to the weight of urine filled in the urine collecting container connected with the container holding member.
  • the urine mass measuring sensor may further comprise a load cell supporting member coupled with the load cell to fix the load cell to a predetermined place.
  • a monitoring system using a urine mass measuring sensor measuring and monitor the quantity of urine excreted from the body of a patient through a tube inserted into the patient's urethra to a urine collecting container, comprising the urine mass measuring sensor including a container holding member for hanging the urine collecting container, and a load cell connected with the container holding member for outputting a predetermined electric signal proportional to the weight of urine filled in the urine collecting container connected with the container holding member; a signal processor including an amplifier electrically connected to the load cell of the urine mass measuring sensor to amplify the electric signal output from the load cell, and a filter for removing noise of the signal amplified by the amplifier; an analog-to-digital converter for converting the analog signal output from the signal processor into a digital signal; and a computer system for receiving the digital signal output from the analog-to-digital converter and processing the digital signal using a predetermined program.
  • the signal processor, the analog-to-digital converter and the computer system are housed in a monitoring case, and the monitoring case includes a display means for displaying data such as the quantity of excreted urine, the quantity of urine per unit time and the frequency of excretions, processed by the computer system, an input unit for extracting the data processed by the computer system, and a lamp for indicating processing and operating states.
  • a correction balance for correcting an error in the load cell may be set at one side of the monitoring case.
  • the quantity of urine is automatically measured, and thus a person who cares a patient or a doctor or a nurse can easily confirm and manage the quantity of urine of the patient without confirming a urine container or forming a check list. Furthermore, the quantity of urine is measured very precisely. Moreover, detailed data such as the quantity of urine per unit time and the number or excretions can be obtained so that the urine mass measuring sensor is efficiently used for medical purpose and precise diagnosis and medical treatment can be performed according to continuous monitoring.

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Abstract

The present invention provides a urine mass measuring sensor and a monitoring system using the same for automatically measuring and monitoring data such as the quantity of urine excreted from the body of a patient through a tube inserted into the patient’s urethra and the frequency of excretions to perform efficient diagnosis and medical treatment. The urine mass measuring sensor comprises a container holding member for hanging a urine collecting container for collecting urine excreted from the body of a patient, and a load cell connected with the container holding member for outputting a predetermined electric signal proportional to the weight of urine filled in the urine collecting container connected with the container holding member. The monitoring system using a urine mass measuring sensor comprises the urine mass measuring sensor including a container holding member for hanging a urine collecting container, and a load cell connected with the container holding member for outputting a predetermined electric signal proportional to the weight of urine filled in the urine collecting container connected with the container holding member, a signal processor including an amplifier electrically connected to the load cell of the urine mass measuring sensor to amplify the electric signal output from the load cell, and a filter for removing noise of the signal amplified by the amplifier, an analog-to-digital converter for converting the analog signal output from the signal processor into a digital signal, and a computer system for receiving the digital signal output from the analog-to-digital converter and processing the digital signal using a predetermined program.

Description

Description
URINE MASS MEASURING SENSOR AND MONITORING
SYSTEM USING THE SAME
Technical Field
[1] The present invention relates to a urine mass measuring sensor and a monitoring system using the same, and more particularly, to a urine mass measuring sensor and a monitoring system using the same adapted to measure the quantity of urine excreted from the body of a patient at home, a nursing home or a hospital through a tube inserted into the patient's urethra and easily monitor the measured quantity of urine. Background Art
[2] It is very important for patients who have a kidney trouble and a problem in the excretion of urine, such as patients who underwent operations, seriously ill patients, patients having an acute renal failure, and unconscious patients, to monitor whether urine is excreted or not and the quantity of excreted urine at all times to continuously manage the excretion of urine.
[3] The Applicant proposed a urine mass measuring device, which is disclosed in Korean
Patent No. 10-0532161 entitled "Urine mass measuring device for toilet bowls." The urine mass measuring device includes a urine collecting unit, a speed converter formed under the urine collecting unit to change the speed of urine, a motor for rotating the speed converter at a predetermined speed, a motor speed measurement unit for measuring a speed variation of the motor, a motor current measurement unit for measuring the current of the motor, a signal operation unit for calculating a urine mass using data measured by the motor speed measurement unit and the motor current measurement unit, and an output unit for outputting the result calculated by the signal operation unit to measure the urine mass.
[4] However, the aforementioned urine mass measuring device for toilet bowls can measure the urine mass only when a user normally excretes urine to the urine collecting unit to operate the speed converter. Accordingly, it can be used only for patients who can freely move or suspected cases and cannot be used for patients who cannot freely move such as patients who underwent operations, seriously ill patients, patients having an acute renal failure, and unconscious patients.
[5] A conventional method for measuring the quantity of urine of a patient who cannot freely move, such as a patient who underwent an operation, a seriously ill patient, a patient having an acute renal failure, and an unconscious patient, inserts a tube into the patient's urethra, collects the urine excreted from the body of the patient through the tube using a collecting pack, checks the quantity of urine through a scale indicated on the collecting pack, records the checked quantity of urine on a check list, and uses the recorded urine mass for diagnosis and management of the patient. Disclosure of Invention Technical Problem
[6] However, the conventional urine mass measuring method is very inconvenient because a person who cares the patient, a doctor or a nurse should manually confirm and check the quantity of urine. Furthermore, the quantity of urine is checked using the scale indicated on the collecting pack, and thus it is impossible to accurately measure the quantity of urine. Moreover, the conventional urine mass measuring method cannot collect detailed data such as the quantity of urine per unit time or the frequency of excretions because it just collects urine in the collecting pack. Accordingly, it is impossible to perform close diagnosis and medical treatment according to continuous monitoring.
Technical Solution
[7] Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the conventional art, and a primary object of the present invention is to provide a urine mass measuring sensor and a monitoring system using the same adapted to automatically measure and monitor data such as the quantity of urine excreted from the body of a patient through a tube inserted into the patient's urethra, the quantity of urine per unit time and the frequency of excretions to perform efficient diagnosis and medical treatment. Advantageous Effects
[8] According to the urine mass measuring sensor and the monitoring system using the urine mass measuring sensor according to the present invention, the quantity of urine is automatically measured, and thus a person who cares a patient or a doctor or a nurse can easily confirm and manage the quantity of urine of the patient without confirming a urine container or forming a check list. Furthermore, the quantity of urine is measured very precisely. Moreover, detailed data such as the quantity of urine per unit time and the number or excretions can be obtained so that the urine mass measuring sensor is efficiently used for medical purpose and precise diagnosis and medical treatment can be performed according to continuous monitoring. Brief Description of the Drawings
[9] Further objects and advantages of the invention can be more fully understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
[10] FIG. 1 is a perspective view illustrating a setting state of a urine mass measuring sensor according to a preferred embodiment of the present invention; [11] FlG. 2 is an exploded perspective view of the urine mass measuring sensor according to the preferred embodiment of the present invention;
[12] FlG. 3 is a perspective view illustrating an assembled state of the urine mass measuring sensor according to the preferred embodiment of the present invention;
[13] FlG. 4 is a view for explaining the technical spirit of a monitoring system using the urine mass measuring sensor according to the present invention;
[14] FlG. 5 is a view for explaining the operation of the monitoring system using the urine mass measuring sensor according to the present invention;
[15] FlG. 6 is a perspective view of the monitoring system using the urine mass measuring sensor according to a preferred embodiment of the present invention; and
[16] FlG. 7 is a block diagram of the monitoring system using the urine mass measuring sensor according to the preferred embodiment of the present invention. Best Mode for Carrying Out the Invention
[17] The present invention will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. The invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Throughout the drawings, like reference numerals refer to like elements.
[18] FlG. 1 is a perspective view illustrating a setting state of a urine mass measuring sensor according to a predetermined embodiment of the present invention, FlG. 2 is an exploded perspective view of the urine mass measuring sensor according to the preferred embodiment of the present invention, and FlG. 3 is a perspective view illustrating an assembled state of the urine mass measuring sensor illustrated in FlG. 2.
[19] Referring to FIGS. 1, 2 and 3, the urine mass measuring sensor 100 according to the preferred embodiment of the present invention includes a container holding member 110 for hanging a urine collecting container 10, and a load cell 120 to which the container hanging member 110 is connected. The load cell 120 outputs a predetermined electric signal proportional to the weight of urine collected in the urine collecting container 10 hanging from the container holding member 110.
[20] The container holding member 110 consists of a bar-shaped part, a hook part 112 connected to the bottom end of the bar-shaped part, and a fastening part formed at the top end of the bar-shaped part. The urine collecting container 10 hangs from the hook part 112 and the fastening part 114 is fastened to the load cell 120.
[21] The load cell 120 can be a bending type load cell in the form of a rectangular bar, one side of which is fixed to a predetermined place, such that a degree to which the load cell is bent according to a load applied thereto is measured and an electric signal corresponding to the load is output. The load cell 120 is not limited to the bending type load cell and it can be constructed in various forms. A load cell supporting member 130 is coupled with one side of the load cell 120 in order to fix the load cell 120 to the predetermined place. As illustrated in FlG. 2, one side of the load cell supporting member 130 is bent and fixed to the top of one side of the load cell 120 by fastening members 140.
[22] Referring to FlG. 1, the containing holding member 110 is coupled with the load cell
120, and the urine collecting containing 10 connected to a tube 20 inserted into the urethra of a patient hangs from the hook part 112 of the container holding member 110. When urine is excreted from the urethra of the patient, the urine is filled in the collecting container 10 through the tube 20 and the weight of the urine is applied to the container holding member 110, and thus the load cell 120 outputs an electric signal corresponding to the weight of urine.
[23] FlG. 4 is a view for explaining the technical spirit of a monitoring system using the urine mass measuring sensor according to the present invention, and FlG. 5 is a view for explaining the operation of the monitoring system using the urine mass measuring sensor according to the present invention.
[24] Referring to FIGS. 4 and 5, the monitoring system using the urine mass measuring sensor according to the present invention includes the collecting container 10 for collecting urine excreted from the body of a patient through the tube inserted into the patient's urethra, the urine mass measuring sensor 100 outputting an electric signal corresponding to the quantity of urine filled in the urine collecting container 10, and a system controller 200 for processing the electric signal output from the urine mass measuring sensor 100 and displaying the processed data through a display means 234.
[25] As described above, the urine mass measuring sensor 100 includes the container holding member 110 for hanging the collecting container 10 and the load cell 120 outputting a predetermined electric signal proportional to the weight of urine filled in the collecting container 10 hanging from the container holding member 110.
[26] As illustrated in FlG. 5, the system controller 200 amplifies and filters the electric signal output from the urine mass measuring sensor 100 and converts the amplified and filtered signal into a digital signal to obtain data. The obtained data is applied to a computer system, processed into data such as the quantity of excreted urine, the quantity of urine per unit time and the frequency of excretions, and then displayed by the display means.
[27] FlG. 6 is a perspective view of the monitoring system using the urine mass measuring sensor according to the present invention, and FlG. 7 is a block diagram of the monitoring system using the urine mass measuring sensor according to the present invention.
[28] Referring to FIGS. 6 and 7, the monitoring system using the urine mass measuring sensor according to the present invention includes the urine mass measuring sensor 100 and the system controller 200 for processing a signal output from the urine mass measuring sensor 100 and displaying the processed signal. The system controller 200 includes a signal processor 210 for processing the electric signal output from the urine mass measuring sensor 100, an analog-to-digital converter 220 for converting the analog signal output from the signal processor 210 into digital data, and a computer system 230 receiving the digital data and processing the digital data according to a predetermined program. The signal processor 210, the analog-to-digital converter 220 and the computer system 230 are housed in a monitoring case 300 in a box shape, as illustrated in FlG. 6.
[29] The urine mass measuring sensor 100 includes the container holding member 110 for hanging the urine collecting container 10, the load cell 120 that is connected with the container holding member 110 and outputs a predetermined electric signal proportional to the weight of urine filled in the urine collecting container 10, and the load cell supporting member 130 for fixing the load cell 120 to the monitoring case 300. The load cell supporting member 130 is coupled with a support bar 310 protruded from the monitoring case 300.
[30] The signal processor 210 includes an amplifier 212 that is electrically connected to the load cell 120 of the urine mass measuring sensor 100 and amplifies the electric signal output from the load cell 120, and a filter 214 for filtering noise of the signal amplified by the amplifier 212.
[31] The computer system 230 includes a controller 231, a data storage unit 232 and a program storage unit 233. The computer system 230 receives the digital signal output from the analog-to-digital converter 220, processes the digital signal into data such as the quantity of excreted urine, the quantity of urine per unit time and the frequency of excretions using a program stored in the program storage unit 233, and stores the data in the data storage unit 232 under the control of the controller 231. The computer system 230 further includes the display means 234 such as a liquid crystal display (LCD) monitor for displaying the data including the quantity of excreted urine, the quantity of urine per unit time and the frequency of excretions, an input unit 235 including buttons by which an input signal is input in order to extract the data stored in the data storage unit 232, and a lamp 236 including light-emitting diodes for indicating a data processing state and an operating state.
[32] The display means 234 and the input unit 235 are arranged on the top face of the monitoring case 300 such that a user and an observer can easily use and recognize. A correction balance 330 for correcting an error in the load cell 120 of the urine mass measuring sensor 100 and a ring 320 for holding the correction balance 330 are formed at one side of the monitoring case 300. Furthermore, the monitoring case 300 and the urine mass measuring sensor 100 include a plurality of fixing pieces that fix the tube 20 inserted into the patient's urethra and connected with the urine collecting container 10 and prevent the weight of the tube 20 from being applied to the load cell 120 to reduce an error in the measurement of the quantity of urine. That is, the fixing pieces fix the tube 20 connected with the urine collecting container 10 at positions (for example, the sides of the support bar 310 and the load cell 120) where the weight of the tube 20 is not applied to the load cell 120.
[33] The operation of the monitoring system using the urine mass measuring sensor, constructed as above, is explained.
[34] When urine is excreted from the urethra of a patient while the urine collecting container 10 connected with the tube 20 inserted into the patient's urethra hangs from the container holding member 110 of the urine mass measuring sensor 100, the urine is filled in the urine collecting container 10 through the tube 20, and thus the weight of urine is applied to the container holding member 110 and, simultaneously, the load cell 120 outputs an electric signal corresponding to the weight of urine.
[35] The electric signal output from the load cell 120 is amplified by the amplifier 212, filtered by the filter 214, converted into a digital signal by the analog-to-digital converter 220, and then applied to the controller 231. At this time, the urine excreted from the patient's urethra is sensed by the urine mass measuring sensor 100 in real time so that the quantity of excreted urine and the frequency of excretions are repeatedly applied to the controller 231 through the aforementioned signal processing routine. Accordingly, the controller 231 can process the digital signal output from the analog-to-digital converter 220 into substantial data such as the quantity of excreted urine, the quantity of urine per unit time and the frequency of excretions in real time.
[36] When the digital signal output from the analog-to-digital converter 220 is applied to the controller 231, the controller 231 processes the digital signal into the substantial data such as the quantity of excreted urine, the quantity of urine per unit time and the frequency of excretions in real time using the program stored in the program storage unit 233. The substantial data is displayed on the display means, and simultaneously, stored in the data storage unit 232.
[37] Then, a person who cares the patient or a doctor or a nurse can confirm the data such as the quantity of excreted urine, the quantity of urine per unit time and the frequency of excretions through the display means 234 in real time or by operating the input unit 235 to check the state of the patient or perform correct diagnosis and medical treatment.
[38] While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims. Mode for the Invention
[39] According to the present invention, there is provided a urine mass measuring sensor comprising a container holding member for hanging a urine collecting container for collecting urine excreted from the body of a patient, and a load cell connected with the container holding member for outputting a predetermined electric signal proportional to the weight of urine filled in the urine collecting container connected with the container holding member.
[40] The urine mass measuring sensor may further comprise a load cell supporting member coupled with the load cell to fix the load cell to a predetermined place.
[41] According to the present invention, there is provided a monitoring system using a urine mass measuring sensor measuring and monitor the quantity of urine excreted from the body of a patient through a tube inserted into the patient's urethra to a urine collecting container, comprising the urine mass measuring sensor including a container holding member for hanging the urine collecting container, and a load cell connected with the container holding member for outputting a predetermined electric signal proportional to the weight of urine filled in the urine collecting container connected with the container holding member; a signal processor including an amplifier electrically connected to the load cell of the urine mass measuring sensor to amplify the electric signal output from the load cell, and a filter for removing noise of the signal amplified by the amplifier; an analog-to-digital converter for converting the analog signal output from the signal processor into a digital signal; and a computer system for receiving the digital signal output from the analog-to-digital converter and processing the digital signal using a predetermined program.
[42] The signal processor, the analog-to-digital converter and the computer system are housed in a monitoring case, and the monitoring case includes a display means for displaying data such as the quantity of excreted urine, the quantity of urine per unit time and the frequency of excretions, processed by the computer system, an input unit for extracting the data processed by the computer system, and a lamp for indicating processing and operating states.
[43] A correction balance for correcting an error in the load cell may be set at one side of the monitoring case.
Industrial Applicability
[44] According to the urine mass measuring sensor and the monitoring system using the urine mass measuring sensor according to the present invention, the quantity of urine is automatically measured, and thus a person who cares a patient or a doctor or a nurse can easily confirm and manage the quantity of urine of the patient without confirming a urine container or forming a check list. Furthermore, the quantity of urine is measured very precisely. Moreover, detailed data such as the quantity of urine per unit time and the number or excretions can be obtained so that the urine mass measuring sensor is efficiently used for medical purpose and precise diagnosis and medical treatment can be performed according to continuous monitoring.

Claims

Claims
[1] A urine mass measuring sensor comprising: a container holding member for hanging a urine collecting container for collecting urine excreted from the body of a patient; and a load cell connected with the container holding member for outputting a predetermined electric signal proportional to the weight of urine filled in the urine collecting container connected with the container holding member.
[2] The urine mass measuring sensor according to claim 1, further comprising a load cell supporting member coupled with the load cell to fix the load cell to a predetermined place.
[3] A monitoring system using a urine mass measuring sensor measuring and monitor the quantity of urine excreted from the body of a patient through a tube inserted into the patient's urethra to a urine collecting container, comprising: the urine mass measuring sensor including a container holding member for hanging the urine collecting container, and a load cell connected with the container holding member for outputting a predetermined electric signal proportional to the weight of urine filled in the urine collecting container connected with the container holding member; a signal processor including an amplifier electrically connected to the load cell of the urine mass measuring sensor to amplify the electric signal output from the load cell, and a filter for removing noise of the signal amplified by the amplifier; an analog-to-digital converter for converting the analog signal output from the signal processor into a digital signal; and a computer system for receiving the digital signal output from the analog- to-digital converter and processing the digital signal using a predetermined program.
[4] The monitoring system according to claim 3, wherein the signal processor, the analog-to-digital converter and the computer system are housed in a monitoring case, and the monitoring case includes a display means for displaying data such as the quantity of excreted urine, the quantity of urine per unit time and the frequency of excretions, processed by the computer system, an input unit for extracting the data processed by the computer system, and a lamp for indicating processing and operating states.
[5] The monitoring system according to claim 3 or 4, further comprising fixing pieces for fixing the tube connected with the urine collecting container to the urine mass measuring sensor and the monitoring case in such a manner that the weight of the tube is not applied to the load cell.
PCT/KR2007/002913 2006-06-21 2007-06-15 Urine mass measuring sensor and monitoring system using the same Ceased WO2007148892A1 (en)

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