Simulation and analysis device for physiological processes of urine storage and emiction of bladder

A physiological process and bladder technology, applied in the field of biomedical engineering research, can solve the problems that errors cannot be scientifically explained, artificial bladder function cannot be effectively evaluated, etc., and achieve good scalability.

Inactive Publication Date: 2011-11-16
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In order to solve the problems that the error of the current ultrasonic volume measuring instrument cannot be scientifically explained and the functionality of the artificial bladder cannot be effectively evaluated, the present invention provides a method that can more realistically simulate the physiological process of bladder storage and urination and improve its urinary function. A device for quantitative analysis of kinetic parameters, the device:

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  • Simulation and analysis device for physiological processes of urine storage and emiction of bladder
  • Simulation and analysis device for physiological processes of urine storage and emiction of bladder
  • Simulation and analysis device for physiological processes of urine storage and emiction of bladder

Examples

Experimental program
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Effect test

Embodiment 1

[0063] Example 1 Simulation of bladder urine storage and urination process

[0064] The device can be used in a laboratory to simulate the bladder urine storage and urination process. When in use, first pour liquid into the pelvic water tank 1 through the filling port 6 of the pelvic water tank 1 until it is full, and then seal the filling port 6 . Fill liquid to 3 / 4 of the volume of the water tank in the airtight water tank 8 of the pressurizing device. Close the flow control valve 12 of the artificial urethra 19, turn on the peristaltic pump 11, and infuse liquid into the artificial bladder 18 at a rate of 30 mL / min, and record the infusion time and liquid volume. When the perfusion volume is 500 mL, the peristaltic pump 11 is turned off. During this process, the pressure sensors 15 and 16 can be used to monitor the bladder pressure and pelvic pressure in real time, and the perfusion speed can be changed by setting the parameters of the peristaltic pump. Open the flow con...

Embodiment 2

[0065] Example 2 Evaluation of Ultrasonic Volume Meter Measurement Accuracy

[0066] The device can be used to evaluate the measuring accuracy of the ultrasonic volume measuring instrument. Because the ultrasonic volumetric instrument uses the same calculation formula for bladders in different states, its reliability is poor. If the bladder shape under different disease conditions can be divided into several categories, tested with this device, and then applied to different calculation formulas, the accuracy can be greatly improved.

[0067] Implementation steps: close the urethral flow control valve 12, turn on the peristaltic pump 11, infuse liquid into the bladder 18 at a speed of 30 mL / min, and record the infusion time and real-time infusion volume. When the perfusion volume is 200 mL, the peristaltic pump 11 is turned off. The ultrasonic probe of the ultrasonic volume measuring instrument is brought into contact with the liquid in the pelvic water tank 1 through the cov...

Embodiment 3

[0069] Embodiment 3 to the calibration of urodynamic analyzer

[0070] The urodynamic analyzer is an inspection instrument specially used for voiding dysfunction of the lower urinary tract, and is currently widely used in clinical testing. This device can calibrate parameters such as urine flow rate, pressure / volume measurement, and pressure / uroflow rate measurement during urination of the urodynamic analyzer. Insert the pressure measuring catheter of the urodynamic analyzer into the bladder 18, connect the device inlet of the analyzer for measuring urine flow rate to the end of the artificial urethra 19 of the device, and replace the peristaltic pump 11 of the device with the perfusion pump of the analyzer. Close the urethral flow control valve 12, quantitatively infuse 400 mL of liquid into the bladder 18, measure the bladder pressure with the urodynamic analyzer and the pressure measuring sensors 15 and 16 of the device respectively, and obtain two sets of values. Open the...

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Abstract

The invention provides a simulation and analysis device for physiological processes of urine storage and emiction of the bladder, comprising an artificial bladder, an artificial urethra, a pelvic cavity sink, an extrusion device, a pressure device, a perfusion device, a urine recovery device, a pressure measuring device and a flow metering device. The artificial bladder is used for simulating thefeature that the bladder changes volume along with the liquid capacity and realizing the function of urine storage; the artificial urethra used as a channel for discharging liquid in the bladder; thepelvic cavity sink is used as the environment for containing organs of the bladder, and the like; the extrusion device is used for simulating extrusion caused by the peripheral organs of the bladder to the bladder; the pressure device is used for simulating the shrinkage of detrusor of the bladder so as to realize the function of emiction of the bladder; the perfusion device is used for accurately measuring and displaying the liquid amount perfused to the bladder in real time; the urine recovery device is used as liquid reserve of liquid pumping of the perfusion device and for collecting the liquid discharged from the urethra so as to facilitate recycling; the pressure measuring device is used for measuring and displaying inner pressure of the bladder and the inner pressure of a pelvic cavity in real time; and the flow metering device is used for measuring and displaying the flow of the liquid passing through the urethra in real time. The invention can realize the physiological processes of urine storage and emiction of the artificial bladder, analyzes the physiological process by controlling and monitoring urine dynamical parameters of bladder volume.

Description

technical field [0001] The invention relates to the field of biomedical engineering research, and more specifically relates to a device capable of simulating the bladder and its surrounding organs and quantitatively analyzing the physiological process of bladder urine storage and urination by controlling and monitoring urodynamic parameters. Background technique [0002] In today's society, the incidence of urinary system diseases is extremely high among middle-aged and elderly people, among which lower urinary tract diseases account for a large proportion. These patients suffer from both physical and mental pains. For example, for patients with urinary incontinence who are bedridden for a long time, because they cannot urinate spontaneously, it will bring a lot of inconvenience in life and cause a series of complications. The hospital will conduct a series of urodynamic analysis on patients with urinary system diseases, such as bladder compliance, urine flow rate during uri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/20G09B23/30
Inventor 蒲放樊瑜波张萌李德玉钟进荣牛海军王喜太李立峰马凤领蔡朕
Owner BEIHANG UNIV
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