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Urodynamic detection analysis method

A fluid dynamics and analysis method technology, applied in the field of medical testing, can solve the problems of inaccurate non-invasive testing methods, high price, patient pain or infection, etc., and achieve the effects of easy clinical memory and use, reduced medical costs, and simple device structure.

Active Publication Date: 2011-01-05
邓惠南 +1
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Problems solved by technology

[0013] In order to overcome the deficiencies of the prior art, such as invasive examination methods that easily cause pain or infection, and non-invasive examination methods that are inaccurate and expensive, the present invention provides a urodynamic detection and analysis method for measuring the urine flowing out of the external opening of the urethra Mass, speed, establish bladder elastic element model and urethral model according to topology principles, use energy conservation law and fluid momentum equation to analyze bladder contraction function and urethral resistance, suitable for examination of patients with lower urinary tract symptoms and evaluation of curative effects of surgery and drugs

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Embodiment Construction

[0028] refer to Figure 4 and Figure 5 , a method for urodynamic detection and analysis of the present invention, comprising the following steps:

[0029](1) Establish an elastic element model of the bladder: taking the detrusor muscle as the research object, biorheological studies have shown that the bladder detrusor has the ability to contract spontaneously, and the tension cannot be decomposed into passive tension, active tension, and detrusor elastic elements. The modulus is a function of fiber length, and it is a function of time at a given length. It can be completely relaxed to zero stress, and there is no single state in the resting state, so it is not suitable to use the Hill model for research, and the image Urodynamics shows that during urination, the bladder is spherical under an appropriate urine volume, so the urine in the bladder before urination can be topologically topologically formed into a sphere, and the action of bladder detrusor and abdominal pressure ...

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Abstract

The invention discloses a urodynamic detection analysis method. The method comprises the following steps of: establishing an elastic element model of a bladder; establishing a urethral model; keeping an anterior urethra vertical to the direction of gravity, recording and measuring micturition data and calculating micturition parameters; calculating the contraction length of an elastic element, further calculating the contraction speed and the contraction acceleration of the elastic element, and evaluating the contraction function of a detrusor by using the maximal contraction acceleration of the elastic element; judging a urethral resistance situation according to the cross-sectional area of the urethral model; and judging whether a urethra has an obstruction according to the maximal cross-sectional area. The method can completely overcome the shortages of the pain of a sufferer and the possibility of infection caused by a conventional invasive urodynamic detection method; an overall analysis process can be performed with the help of a computer; results of the overall analysis process are clear and are convenient for clinical memory and use; a device made by using the method has the characteristics of simple structure and convenient maintenance; and therefore, the medical cost is reduced.

Description

technical field [0001] The invention relates to a medical detection method, in particular to a urodynamic detection and analysis method. Background technique [0002] Urodynamics is an interdisciplinary subject of modern medicine, biofluid mechanics, and biorheology. It is widely used in basic research, diagnosis, treatment, and efficacy evaluation of urinary tract obstruction, urinary incontinence, and other urinary tract dysfunctions. Surgery, obstetrics and gynecology, pediatrics, endocrinology, neurology, anorectal and other specialties are closely related. [0003] At present, the indicators directly measured by conventional urodynamics are bladder and rectal pressure, urinary flow rate, and urine output. The most commonly used method is the invasive urodynamic examination method: inserting a pressure measuring tube to directly measure the pressure change in the bladder, and at the same time measure the urine flow rate; pull the pressure measuring tube with constant sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/20
CPCA61B5/208G09B23/303
Inventor 陈虎宋波陈祎邓惠南
Owner 邓惠南
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