8 results about "Bladder cavity" patented technology

Invention relates to a hydraulic compressor system for compressing gas, comprising: at least one pump for pumping liquid; a gas reservoir for storing compressed gas; at least two compression tanks, each of said compression tanks comprises an expandable bladder defining a bladder cavity, wherein the expandable bladder contains a liquid in the expandable bladder cavity and the expandable bladder is configured to expand when liquid is input into the expandable bladder cavity and a tank cavity outside of the expandable bladder, wherein the cavity comprises a compressible gas wherein the expandable bladder and the tank cavity outside the expandable bladder form interdependent volumes of liquid and gas; a liquid line configured to fluidly couple the expandable bladder cavity with at least one of the one or more pumps such that the liquid is pumped into or out of the expandable bladder via the liquid line; a gas line configured to fluidly couple the gas reservoir with the tank cavity such that the gas flows into or out of the tank cavity via the gas line; wherein, during operation of the system, liquid is pumped by the one or more pumps to the expandable bladder in the first compression tank and gas is expelled from the tank cavity of the first compression tank and directed to gas reservoir where it is compressed, characterised in that Switching from compressing the first compression tank (21) to compressing the second compression tank (22); is achieved by changing the direction of flow; wherein the pump (10) direction of rotation is reversed to reverse the flow of liquid; wherein said pump (10) comprises a variable speed pump wherein the speed of said pump (10) is adjusted so that towards the end of the compression stroke the pump speed is reduced and hence the liquid flowrate is reduced to allow a smooth change-over from one compression tank to another compression tank as the automatically controlled switch over is executed or the speed of said pump is adjusted so that the maximum efficiency of the compression cycle is maintained thought continuous speed adjustment of the pump.

The invention discloses a bladder pressure measuring catheter capable of measuring pressure in a cantilever mode in the field of bladder pressure measuring catheters, and the catheter comprises a flexible catheter main body which is internally provided with an infusion tube cavity and a wiring tube cavity. The core is that a deformation bending section is formed at one end, integrated with the micro pressure sensor, of the catheter main body. The deformation bending section is in a temporary straight state to ensure passing ability when being inserted, and is converted into a bent shape under a preset condition after entering the bladder. According to the design, the miniature pressure sensor can be automatically positioned in the central area of the bladder cavity in a cantilever state and is prevented from being in contact with the bladder wall, so that measurement artifacts are eliminated, clinical operation is simplified, and the accuracy and stability of pressure measurement are improved.

The application relates to an extrusion device, a tray and a battery production equipment. The extrusion device comprises a first part and a second part connected; the first part comprises a frame and a flexible bladder connected; the flexible bladder and the second part are connected with two opposite sides of the frame respectively and together define a bladder cavity; the frame has a first surface away from the second part; the flexible bladder comprises a bladder body and a protruding part protruding on one side of the bladder body; the bladder body is located on the side of the frame away from the second part and connected with the first surface; the protruding part extends to the inside or the inner side of the frame and is connected with the frame. The extrusion device can reduce the tearing angle between the bladder body and the first surface, thereby reducing the risk of the bladder body peeling off from the first surface, and further reducing the risk of the extrusion device failure.

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.

A footwear sole with a unidirectional air-circulation bladder, comprising a footwear sole (1), a bladder enclosure (2), a first air conduit (3) and a second air conduit (4), wherein the bladder enclosure (2) is provided with a first unidirectional flow channel (23) and a second unidirectional flow channel (24), the first air conduit (3) and the second air conduit (4) are respectively inserted into the first unidirectional flow channel (23) and the second unidirectional flow channel (24); the footwear sole (1) comprises a heel portion (12) and a forefoot portion (11), wherein the heel portion (12) and the forefoot portion (11) are integrally formed, the heel portion (12) is provided with a bladder groove (121), the bladder enclosure (2) matingly engages with the bladder groove (121) to form a bladder cavity (5), and the bladder cavity (5) is in communication with the first unidirectional flow channel (23) and the second unidirectional flow channel (24).

This invention relates to a male urethral indwelling intelligent urinary control device, comprising an insertion part and an insertion aid for assisting in the placement and removal of the insertion part. The insertion part is a slender tube with an arc-shaped sealed end at one end and an open end at the other. An annular water-filled balloon is embedded in the outer wall of the insertion part near the sealed end to prevent the insertion part from slipping out of the bladder cavity. Cylindrical water-filled balloons are evenly distributed on the outer wall of the insertion part between the annular water-filled balloon and the open end to prevent the insertion part from slipping into the bladder cavity. Several through-flow ports are evenly distributed around the axis of the insertion part between the annular water-filled balloon and the sealed end. The monitoring and control unit built into the insertion part can monitor the bladder pressure in real time and control the opening of the first solenoid valve when the pressure reaches a preset threshold or when an external command is received, establishing a urination pathway from the bladder through the inlets to the open end, thus achieving intelligent and active urinary control.

The transportation and turnover device comprises a dynamic supporting bin, elastic supporting mechanisms and a hoisting turnover mechanism, the dynamic supporting bin is fixedly connected to the upper portion of a vehicle chassis, the multiple elastic supporting mechanisms are slidably connected into the dynamic supporting bin, and the two ends of each elastic supporting mechanism are located in a bag body cavity and a supporting cavity correspondingly; the elastic supporting mechanisms extrude the air bag in the bag body cavity, the multiple elastic supporting mechanisms can slide towards the air bag by a certain distance along with the pressure of the covering part, then the covering part is evenly supported, and the two hoisting and overturning mechanisms are connected to the two sides of the dynamic supporting bin correspondingly and can hoist the covering part. The conveying and overturning device is used for solving the problem that in the prior art, when the aircraft covering part is conveyed and machined between all devices, the surface of the aircraft covering part is likely to deform due to uneven supporting.