6 results about "Detrusor muscle" patented technology

The application provides a transcutaneous tibial nerve stimulation method and system based on an adaptive algorithm, an electronic device and a readable storage medium, and belongs to the technical field of nerve electrical stimulation. The method comprises the following steps: obtaining an individual physiological characteristic baseline of a subject, which represents the occurrence regularity of bladder activity instability events of the subject in a preset time period; acquiring current physical activity data of the subject in real time, and identifying characteristic pre-activities associated with instability events based on the individual physiological characteristic baseline to predict the occurrence time of instability events; triggering an electrical stimulation pulse for intervention before the occurrence time to inhibit abnormal activity of the bladder detrusor; acquiring feedback data after the intervention and dynamically adjusting the individual physiological characteristic baseline and / or the electrical stimulation pulse output parameter to perform individual closed-loop calibration regulation on the subject. The application realizes dynamic prediction and intervention of individual bladder activity through an adaptive closed-loop intelligent stimulation strategy.

The application relates to the technical field of image processing, in particular to a bladder cancer contour drawing method and system based on ultrasonic images. The method comprises the following steps: acquiring bladder ultrasonic images and contrast images under each view angle; obtaining a muscle layer infiltration depth factor according to the shape, length and surrounding pixel gray scale of blood vessels in each region in the ultrasonic images, and determining a deviation error factor of each region under each view angle; obtaining a pulling error sensitive factor according to the volume change of the bladder cavity, the distance between the tumor region and the texture region of the urinary muscle bundle, the overall tumor displacement direction and the local muscle bundle main direction in each frame of the bladder ultrasonic images under each view angle, and then obtaining the registration error cumulative value of each region under each view angle; and comprehensively obtaining a drawing error coefficient by combining the deviation error factor, the registration error cumulative value and the pulling error sensitive factor, adjusting an initial edge reservation parameter, and obtaining a bladder cancer contour drawing result. The application improves the accuracy of the bladder cancer contour drawing result.

The invention discloses a magnetic control urethral catheterization device and a urination control method thereof.The magnetic control urethral catheterization device comprises a urethral catheter, a magnetic control urethral catheterization pump and an in-vitro driver, the urethral catheter comprises a fixing part and a catheter body, the lower end of the catheter body is connected with the magnetic control urethral catheterization pump, and the magnetic control urethral catheterization pump comprises a connecting pipe, an impeller, a brake block and the like; the in-vitro driver is used for driving the magnetic control urinary catheterization pump to be opened and closed. The catheter is anchored to the urethra through the fixing part of the catheter, long-term working stability is guaranteed, the magnetic control catheterization pump is accurately controlled in a non-contact mode through the in-vitro driver, when a patient needs to urinate, only the in-vitro driver needs to be operated, generated magnetic force can drive the in-vivo valve to be opened, urine is guided to be discharged from the urination hole, and the operation is simple and convenient. In the process, bladder emptying is actively completed, the damaged detrusor muscle function is simulated and replaced, and then the problem of urination disorder caused by low activity of the detrusor muscle can be solved.

The application discloses a dysuria and urinary incontinence integrated monitoring and diagnosing system based on intelligent sensing, comprising: a bladder emptying evaluation module for real-time tracking of bladder shape and volume change and evaluation of whether the bladder is completely emptied; a detrusor contraction function evaluation module for real-time monitoring of the contraction strength and coordination of the detrusor and judgment of whether it works normally; a bladder pressure evaluation module for evaluation of bladder compliance and detrusor function by monitoring the elasticity change and pressure change of the bladder wall; a urinary flow rate determination module for real-time measurement of bladder shape change and urinary flow rate and evaluation of the urinary flow rate; a urethral obstruction and bladder outlet obstruction evaluation module for evaluation of whether there is obstruction in the urethra or bladder outlet by real-time monitoring of the shape change and pressure change of the bladder and urethra; and a data analysis and intelligent diagnosis module for providing dysuria diagnosis and treatment suggestion. The application not only improves the accuracy and operability of dysuria diagnosis, but also optimizes the clinical decision-making process.

The invention discloses an intelligent urine collecting device for urology department nursing, relates to the technical field of medical instruments, and aims to solve the technical problem that a patient is in a pathological urination mode for a long time due to the fact that an existing catheter cannot recognize and intervene detrusor sphincter coordination disorder in real time. One end of the catheter arranged in the bladder is provided with a catheterization port and an annular cavity, and the other end of the catheter is provided with an inflation extension tube communicated with an air source; the annular balloon is formed by expanding the annular cavity under the influence of an inflating medium; the inflating hole is formed in the catheter main body and is used for communicating the inflating extension tube with the annular cavity; the air bag internal pressure sensor is fixed on the inner wall of the annular cavity; a dual-pressure real-time monitoring system is constructed, and pressure change signals of detrusor contraction and sphincter areas in the urination period are accurately collected. The defect that the coordination state of the detrusor muscle and the sphincter cannot be sensed in the prior art is overcome, and therefore the upper urinary tract injury risk is effectively reduced.

The invention provides a urine flow rate dynamic monitoring system and method, and the method comprises the steps: collecting an ultrasonic image of a bladder neck sagittal section of a target patient, and determining a bladder neck angle of the target patient according to a tangent line of a bladder neck front wall and a bladder neck rear wall in the ultrasonic image; a dynamic change curve of the urine flow rate of the target patient and a pressure change curve of detrusor muscle pressure in the urination process are obtained, and the obstruction index at the bladder outlet of the target patient is determined according to the dynamic change curve and the pressure change curve; constructing a fluid-solid coupling model comprising anatomical structures of the bladder, the prostate and the urethra; based on the fluid-solid coupling model, establishing a collaborative association relationship among the bladder neck angle, the obstruction index and the urine flow rate; and monitoring the urine flow rate of the target patient according to the bladder neck angle and the obstruction index of the target patient and the collaborative association relationship. By adopting the scheme of the invention, the urine flow rate can be dynamically evaluated according to the individualized difference of the bladder of the patient.