5 results about "Bladder walls" patented technology

An inflatable ball comprises a bladder having a bladder wall defining an inflatable interior of the ball. At least one device is mounted on or over the bladder wall such that a centre of mass of the at least one device is located away from a centre of the inflatable interior of the ball. The at least one device includes at least one electronic device. The centre of mass of the at least one device defines a first point on the bladder wall coincident with or closest to the centre of mass of the at least one device and a second point on the bladder wall opposite the first point. The ball comprises a distributed balancing mass for at least partially rotationally balancing the mass of the at least one device. The distributed balancing mass comprises one or more balancing mass elements on or over the bladder wall. The one or more balancing mass elements are arranged at a plurality of locations spaced around the second point on the bladder wall and closer to the second point than the first point. One of the one or more balancing mass elements comprises a valve of the inflatable ball and / or wherein one of the one or more balancing mass elements is attached on or over the bladder wall and comprises a plurality of sub-masses that are interconnected by one or more interconnecting portions, such that the plurality of sub-masses may move relative to one another during deformation of the bladder wall by stretching or bending of the interconnecting portions.

At least one device is mounted on or over the bladder wall of an inflatable ball such that a center of mass of the device is located away from a center of the inflatable interior of the ball. The device includes an electronic device. The center of mass of the device defines a first point on the bladder wall coincident with or closest to the center of mass of the device and a second point on the bladder wall opposite the first point. The ball comprises a distributed balancing mass for at least partially rotationally balancing the mass of the device. The distributed balancing mass comprises one or more balancing mass elements on or over the bladder wall. The balancing mass elements are arranged at a plurality of locations spaced around the second point on the bladder wall and closer to the second point than the first point.

The present invention relates to a biocompatible polydopamine nanomotor capable of infiltrating a bladder wall in a biological environment and remaining inside a bladder for a long time.

The invention provides a bladder capacity accelerated measurement method based on an FPGA. The method comprises the steps that a bladder ultrasonic image is obtained, left and right extreme points of the lower wall of the bladder ultrasonic image are positioned, bladder wall adduction inspection is completed, and the adduction points are merged into a boundary point array; adopting a Bresenham straight line algorithm to set 8-bit gray values of pixel positions where all boundary points in the boundary point array are located as 255, generating a closed bladder area contour, and packaging a bladder area contour detection algorithm into an edge detection IP core; based on the edge detection IP core, a lightweight U-Net capacity measurement IP core is adopted to carry out capacity measurement; wherein the lightweight U-Net is an optimized U-Net network, and comprises the steps of performing spatial selective suppression on a feature map extracted by the U-Net network by adopting pixel information based on a bladder contour in a bladder ultrasound image, introducing residual connection to a jump connection part, enhancing gradient flow and suppressing artifacts; in the process of measuring the bladder capacity, end-to-end bladder capacity measurement is completed by combining an input channel, an output channel and a pixel parallel three-dimensional calculation structure of a network model; according to the method, dynamic threshold calculation based on the local neighborhood of the core point and an extreme point screening rule are combined, and the problem that a traditional algorithm is easily interfered by ultrasonic noise and surrounding tissues is solved.

This invention belongs to the field of medical electronics technology, specifically a device and method for measuring bladder fullness. The device comprises an ultrasonic transducer, an ultrasonic excitation module, a signal acquisition module, a calculation and processing module, and a user prompt module. The ultrasonic excitation module includes a channel selection switch and an ultrasonic pulse generation circuit. The selection switch controls the connection between the transducer array elements and the excitation and signal acquisition modules, while the pulse generation circuit generates an excitation signal. The signal acquisition module amplifies, filters, and performs analog-to-digital conversion on the ultrasonic echo signal. The calculation and processing module calculates the curvature characteristics of the anterior bladder wall surface using a specific algorithm and measures bladder fullness based on changes in these curvature characteristics. The measurement results of bladder fullness are finally presented in a user-acceptable manner through the user prompt module. This device is available in integrated and discrete versions, allowing for flexible configuration according to different user groups and application scenarios.