61 results about "Bladder volume" patented technology

An implantable sensor for monitoring the condition of an organ, such as the bladder, of a recipients' body. The sensor (100) comprises a carrier (102), such as a tubular housing that is attachable to the outer surface of the organ. An impedance-varying means (104), such as a saline solution, is carried by the carrier (102). The impedance-varying means (104) within the carrier varies as the condition of the organ changes to cause in output state of the sensor (100). The sensor (1000) can be used for the purposes of monitoring the filling of the bladder, making bladder volume information to the recipient or another person, and causing an alarm signal to be generated when a preset bladder volume is reached.

The invention relates to a method and system for automatically measuring the bladder volume of an ultrasonic image. The method for measuring the bladder volume comprises the following steps of: acquiring an ultrasonic image; acquiring an ultrasonic bladder image through ultrasonic scanning; preprocessing the ultrasonic image; preprocessing the acquired ultrasonic bladder image; acquiring a bladder pixel contour line through the gray level difference between the ultrasonic bladder image and peripheral ultrasonic non-bladder images; selecting radial line measured values: analyzing the acquired bladder pixel contour line and selecting a first radial line measured value and a second radial line measured value; and the measuring the bladder volume according to the selected first radial line measured value and the selected second radial line measured value. According to the method for measuring the bladder volume of the ultrasonic image, the measuring result is more accurate, and the measuring precision is improved; meanwhile the repeated and dried works of a user can be reduced, and the efficiency of an ultrasonic diagnosis system is improved; and the method disclosed by the invention is more convenient and rapid to use.

An apparatus and methods to quantify the volume of urine in a human bladder with a limited number of acoustic beams is disclosed. In a first version a plurality of narrow ultrasound beams is transmitted in different directions towards the bladder. Returning echoes are converted to digital form and stored in memory. A volume display on the apparatus allows to define the optimal apposition of the transducer assembly. Signal processing software automatically determines the bladder Depth D and Height H and computes the volume of urine. In a second version, a single wide angle ultrasound beam transducer transmits ultrasounds signals at a fundamental frequency to quantify the urine volume. Return signals originating from a depth beyond the usual position of the posterior wall depth of a filled bladder are analyzed for presence of higher harmonic signals, which in turn are related to the presence or absence of urine.

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 accuratelymeasuring 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.

Method of urinary continence training, utilizing an objective measurement, indicative of the state of fullness of the bladder of the subject, to identify the occurrence of an appropriate continence training opportunity. When the objective measurement equals or exceeds a signal threshold value, set to correspond to a bladder volume that is less than a reflexive urination volume, a signal is provided to the subject or to a caregiver. The objective measurement may be performed by a bladder monitor, using any of several modalities of automatic sensing, and preferably using ultrasound. The signal threshold value may be recalculated and increased, so as to continue to correspond to a relatively full bladder, as the subject grows and/or achieves progress toward continence. The method may include other steps directed to help the subject associate the physical sensation of a full bladder with voluntary urination, such as informing the subject that urination is imminent.

The invention provides a device for measuring the urine volume and the pressure intensity of a bladder and a measurement and control method thereof. Each pipeline is controlled to be on and off, a control and information analysis system records the corresponding value of the increment or decrement of the bladder pressure intensity and the bladder volume on each time point in real time in the irrigation process and the urination process; then, the information is collected and counted by the control and information analysis system to obtain and store the corresponding relationship of the bladder pressure intensity and the bladder volume as well as a graph and a report. The device for measuring the urine volume and the pressure intensity of the bladder has the advantages of convenience in operation and control, low cross infection risk and small potential safety hazard.

The invention discloses a deformable model-based method and device for measuring bladder volume through ultrasound images. The method for measuring the bladder volume through ultrasound images includes that acquiring n ultrasound images of a bladder; orderly arraying the n ultrasound images of the bladder according to the acquisition sequence, and constructing three-dimensional data of the bladder according to space information of the bladder; using a deformable model corresponding to the current form of the bladder to carry out three-dimensional image segmentation on the three-dimensional data of the bladder to obtain the bladder region; calculating the volume of the bladder region. The deformable model-based method and device for measuring the bladder volume through ultrasound images fully consider the shape difference of the bladder under different states, enable the bladder volume measurement result to be closer to the clinical manifestation of the bladder, enable the bladder volume measurement precision to be improved, and provide more precise reference data for diagnosing and treating bladder diseases.

The invention provides a bladder ultrasonic image segmentation method and device based on a UNet convolutional neural network, and the method comprises the steps: obtaining a bladder ultrasonic imageof a human body through ultrasonic scanning equipment; constructing a training set and a test set of the bladder ultrasonic images, wherein the training set and the test set comprise all bladder ultrasonic image data subjected to labeling and data enhancement processing; constructing a UNet convolutional neural network model, wherein the UNet convolutional neural network model comprises a lower sampling layer and an upper sampling layer; training the constructed UNet network model by using the training set image data of the bladder ultrasonic image to generate a network model, and testing themodel effect by using the test set image data of the bladder ultrasonic image; and segmenting the actual bladder ultrasonic image acquired by the ultrasonic equipment by using the trained UNet networkmodel. According to the invention, the interference of noise on bladder ultrasonic image segmentation can be eliminated, and the accuracy of bladder volume calculation is improved.

The invention relates to an implementation method of bladder volume measurement. The implementation method of bladder volume measurement includes the steps: control of a whole machine; control of probe scanning; control of emission and reception of ultrasonic signals; control of image processing and ultrasonic imaging; according to the obtained image information, drawing the boundary two dimensional coordinates of a plurality of bladder sections, converting the two dimensional coordinates of all the boundary points of each section into three dimensional coordinates, and enabling the three dimensional coordinates to employ OpenGL to establish a 3D bladder model; equally dividing the 3D bladder model into n layers from top to bottom, wherein n is the ultrasonic depth of the bladder; and calculating the area of each layer, and accumulating the areas to obtain the volume of the bladder. The invention also relates to a ladder volume measuring device. The bladder volume measuring device, and the implementation method of the same can conveniently measure the bladder volume without pain, thus reducing iatrogenic urinary system infection, reducing the pain caused by frequent conduit insertion and being convenient to operate, and can preferably control filling of bladder for pelvic cavity tumour radiotherapy, thus positioning accurately for pelvic cavity tumour radiotherapy and achieving accurate radiotherapy effect.

The invention discloses a shape feature-based ultrasonic image bladder volume measuring method and device. The shape feature-based ultrasonic image bladder volume measuring method comprises the following steps: acquiring a two-dimensional bladder ultrasonic image; recognizing the shape of a bladder according to the two-dimensional bladder ultrasonic image; measuring the volume of the bladder according to the shape of the bladder. The shape feature-based ultrasonic image bladder volume measuring device comprises a two-dimensional bladder ultrasonic image acqusition unit for acquiring the two-dimensional bladder ultrasonic image, a bladder shape recognition unit for recognizing the shape of a bladder according to the two-dimensional bladder ultrasonic image and a bladder volume measuring unit for measuring the volume of the bladder according to the shape of the bladder. According to the shape feature-based ultrasonic image bladder volume measuring method and device, shape difference shown in different states by the bladder in clinical application is combined, the shape of the bladder is used as priori knowledge, the volume of the bladder is automatically calculated according to the current shape of the bladder, and the accuracy for measuring the volume of the bladder is improved.

The invention discloses a bladder volume measuring method and instrument. The bladder volume measuring method comprises the steps that S1, ultrasonic signals are transmitted in a plurality of directions of the bladder; S2, two reflection signals, reflected by bladder walls on two sides of the corresponding direction, of the ultrasonic signals in each direction are received; S3, the depth of the bladder in the direction is determined according to the time difference of the two reflection signals in each direction; S4, the bladder volume is determined according to the bladder depths in multipledirections. The propagation time of ultrasonic waves in the bladder is measured, and ultrasonic imaging is not needed, so that a measuring device is simplified, and the operation efficiency of the device is improved. In clinical application, results are quicker to obtain, and the efficiency of measuring the bladder volume is improved.

The invention discloses a method and system for calculating the bladder volume. The method includes the steps that bladder echo radio frequency data is obtained; an initial bladder contour line is obtained according to the amplitude difference of the bladder echo radio frequency data and the boundary continuity of the bladder; the initial bladder contour line is finely adjusted through a key point moving method, and a final bladder contour line is obtained; the bladder volume is calculated according to the final bladder contour line. The bladder contour is detected through original data, namely the bladder echo radio frequency data, limitation of the gray scale range and the influence of the boundary gray scale change are avoided, detection accuracy is improved, the bladder contour can be more accurately detected, and the precision of the calculated result of the bladder volume is improved. The contour line is better attached to an actual boundary by finely adjusting key points on the bladder contour line, the boundary can be accurately described, and then the more precise calculated result of the bladder volume is obtained. The method and system can be widely applied to the field of ultrasonic image processing.

A system includes at least one wearable device configured to monitor a bladder volume of a user associated with the at least one wearable device, monitor moisture associated with the user, and transmit information regarding the bladder volume and moisture. The system also includes a display device configured to receive the information regarding the bladder volume and moisture from the at least one wearable device, and display information to the user based on the received information.

The invention discloses a method and system for monitoring bladder capacity. The method includes: applying ultrasonic waves to the human body; receiving echo signals transmitted back from the walls of human body organs, and converting them into digital amplitude signals after processing; The signal is analyzed to obtain the information image, and the current bladder volume value is obtained according to the information image; it is determined that the current bladder volume value is greater than the bladder safety capacity value, and an alarm signal is issued. The present invention acts on the human body through ultrasonic waves, receives the echo signal reflected by the human body, analyzes and processes the echo signal to obtain an information image, and then analyzes the current bladder volume value from the information image, so that according to the current bladder volume value and The comparison of bladder safety capacity values ​​determines whether to send an alarm signal to the voiding disorder to remind the voiding disorder to urinate, to achieve an early warning effect, to ensure the safety of the patient, and to avoid complications such as bladder-ureteral reflux and hydronephrosis.

The present invention provides a device and a method for monitoring the bladder volume of a subject. A device for monitoring the bladder volume of a subject comprises a sensor to be attached to a region on the exterior surface of the abdomen of the subject, the region corresponding to the bladder of the subject, the sensor being configured to obtain a sensor signal indicating the bladder volume of the subject; a controlling unit configured to generate a control action signal if it determines, based on the sensor signal, that the change of the bladder volume of the subject exceeds a predetermined amount; an ultrasound probe to be attached to the subject and configured to emit, in response to the control signal, an ultrasonic signal toward the bladder of the subject and receive echo signals from the bladder of the subject; a deriving unit configured to derive the bladder volume of the subject from the received echo signals. According to the device, long-time monitoring of the bladder volume of the subject may be achieved.

The invention discloses a bladder-volume measuring method and device and a computer readable storage medium. The bladder-volume measuring method includes the steps that an ultrasonic image of the partof the bladder is obtained, and according to the ultrasonic image, a bladder ultrasonic image is obtained; a first outline of the bladder ultrasonic image is extracted, the non-smooth part of the first outline is trimmed, and an effective outline is obtained; according to the effective outline, a volume value of the bladder is obtained after calculation. According to the bladder-volume measuringmethod and device and the computer readable storage medium, the extracted first outline of the bladder ultrasonic image is trimmed, the more-accurate effective bladder outline is obtained, the volumevalue of the bladder is obtained after calculation according to the effective outline, and the measurement accuracy of the bladder volume value and the using convenience of a user are improved.