22 results about "Bladder cavity" patented technology

The invention discloses a special catheter for increasing the drug treatment contact area in a bladder cavity, and the catheter comprises an inner core, the front end of the inner core is provided with a film water bag, the rear end of the inner core is provided with a water injection hole, and the water injection hole is connected with the film water bag through a hollow tubular structure; a medicine channel is formed in the outer sheath in the length direction, and a medicine outlet hole and a medicine inlet hole are formed in the positions, corresponding to the front end and the rear end of the outer sheath, of the medicine channel respectively; the inner core slides relative to the outer sheath, the thin film water bag is deformable and moves along the containing channel in a folded state, the water injection hole is used for injecting water into the thin film water bag when the thin film water bag is pushed out of the containing channel, and a medicine gathering cavity gap is formed between the thin film water bag and the bladder wall after the thin film water bag expands. The thin film water bag can be expanded to greatly reduce the volume in the bladder, so that the medicine usage amount is greatly reduced through the medicine gathering cavity gap, full contact between a small amount of medicine liquid and the bladder wall can be guaranteed, the utilization rate of the medicine liquid is guaranteed, and the burden of a patient is reduced.

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 invention discloses an insole design method and system based on foot physiology, and relates to the technical field of insoles, the method comprises the following steps: dividing an insole into a heel area, an arch area and a half sole area to obtain a partition model; an upper-layer pad and a lower-layer pad are formed at the corresponding positions of the partition model in an injection molding mode, a pressure sensor module is arranged between the upper-layer pad and the lower-layer pad, a plurality of air bag cavities are preset in the heel area, the arch area and the half sole area respectively, and an embedding groove is formed in the arch area; a processing module is embedded in the lower-layer cushion embedding groove, is used for being connected with the pressure sensor module and is further used for controlling the air pressure of the air bag cavity; superposing the upper layer pad, the functional layer containing the pressure sensor module and the lower layer pad, and fusing the edges of the partitions through hot pressing; the joint motion capturing module and the myoelectricity sensing module are configured with the processing module, and intelligent design of the insole is completed. The shoe pad designed by the invention can comprehensively reflect the gait of the user.

1. The name of the design product: bladder cancer hyperthermia device. 2. The use of the design product: placed in the bladder cavity to cooperate with chemotherapy drugs for hyperthermia of bladder cancer. 3. The design points of the design product: the shape of the product as a whole. 4. The picture or photo that best indicates the design points: perspective view.

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 relates to a temperature measurement and control system for radio frequency heating treatment in a bladder cavity, which comprises a radio frequency output electrode, a temperature measurement probe, a radio frequency output negative plate, a radio frequency generation device, a radio frequency power acquisition device, a temperature acquisition device, a control system, a computer and a touch display, the radio frequency output electrode is connected with the radio frequency generating device, the temperature measuring probe is connected with the radio frequency output electrode, the radio frequency power collecting device is connected with the radio frequency output electrode, the radio frequency power collecting device is connected with the control system, the temperature collecting device is connected with the temperature measuring probe, the temperature collecting device is connected with the control system, and the control system is connected with the computer. And the radio frequency output negative plate is connected with the radio frequency generator. According to the temperature measurement and control system, heat is generated near the radio frequency output electrode to heat liquid around the electrode; the temperature of liquid in the bladder cavity is monitored in real time through the temperature measuring probe, and normal saline added with chemotherapy in the bladder cavity is heated to 43-45 DEG C for thermal chemotherapy.

The invention provides a pelvic organ model construction method and system based on an MRI three-dimensional reconstruction technology, and a medium. The method comprises the following steps: obtaining MRI data used for constructing a pelvic organ model; pelvic organ tissue segmentation is carried out based on the MRI data to obtain pelvic organ tissue three-dimensional point cloud data; performing three-dimensional modeling based on the pelvic organ tissue three-dimensional point cloud data to obtain a pelvic organ tissue entity model; constructing a bladder cavity model, a muscle uterus cavity model, a vagina cavity model and a rectum cavity model based on the pelvic organ tissue entity model; and carrying out original point assembly on the bladder cavity model, the muscular uterus cavity model, the vagina cavity model and the rectum cavity model to obtain the pelvic organ model. The pelvic organ model constructed by the method not only can be seamlessly connected with finite element analysis software to realize biomechanical behavior simulation, but also can be used for carrying out anatomical form dynamic evolution analysis such as pelvic organ prolapse displacement simulation and the like.

The utility model relates to an air bag in the field of bedding, in particular to an air bag with air holes and a mattress. An existing air bag used on bedding is lack of a breathable structure, cushion layers on the two sides of the air bag are not breathable, and the using comfort and experience of the bedding are affected. According to the air bag with the air holes and the mattress, the air holes are formed in the air bag, so that the air permeability of the two sides of the air bag is improved, and the use comfort and experience of the bedding with the air bag are improved. The air bag with the air hole comprises an inflatable bag body, the wall of the bag body is provided with an air nozzle communicated with a bag cavity, the bag body is provided with an air hole channel penetrating through the bag cavity, the air hole channel and the bag cavity are separated in a sealed mode, and the two ends of the air hole channel extend to the two opposite walls of the bag body to form two openings.

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.

The invention discloses a safety air bag, a safety air bag device and a safety seat. The safety air bag is provided with an inflation state and a folding device. The safety air bag comprises a bag body and an air inlet channel. The bag body is provided with a bag cavity, an air bag air inlet communicated with the bag cavity and a separation part for separating the bag cavity; a first cavity and a second cavity are formed in the two sides of the separation part respectively; the air inlet channel is communicated with the first cavity and the second cavity; the first cavity is communicated with the air inlet of the air bag, and the second cavity is communicated with the air inlet of the air bag through the first cavity, so that the first cavity and the second cavity are sequentially expanded in an inflation state. According to the technical scheme, the possibility that passengers are injured when the safety air bag is started can be reduced.

The invention relates to the technical field of medical instruments, and discloses a temperature control heating system and method for a bladder cavity. The system comprises an electromagnetic generation module, an electromagnetic energy output electrode, an electromagnetic induction metal floating ball, a temperature measurement sensor, a temperature measurement wireless power supply device, a temperature measurement wireless communication device, a control system and a display module, the control system is in communication connection with the electromagnetic generation module, the temperature measurement wireless power supply device, the temperature measurement wireless communication device and the display module. The electromagnetic generation module emits electromagnetic energy to the electromagnetic energy output electrode, and the electromagnetic energy output electrode sends the electromagnetic energy to the electromagnetic induction metal floating ball in an electromagnetic mode; the temperature measurement sensor is arranged on the electromagnetic induction metal floating ball, the temperature measurement wireless power supply device wirelessly transmits energy to the temperature measurement sensor, the temperature measurement sensor sends real-time liquid temperature data in a bladder cavity to the temperature measurement wireless communication device through wireless signals, and the temperature measurement wireless communication device performs data interaction with the control system.

The present invention relates to the technical field of surgical operations, and discloses a flexible high-degree-of-freedom intracavitary injection system for cystoscopes, which includes an imaging unit, an outer layer tunnel unit, an adaptive bending injection tube unit, an injector strengthening unit, a micro-thread torsion unit, and an angle adjustment code disc unit. Through the flexible high-degree-of-freedom intracavitary injection system under cystoscopes, the present invention can efficiently and highly accurately complete the precise injection of drugs in the bladder cavity and the narrow urethra area, reduce the risk of accidental puncture injury, and improve the drug targeting precision injection effect under cystoscope surgery.

The invention relates to the technical field of medical instruments for urinary surgery, in particular to a transurethral bladder sheath. The transurethral bladder sheath is composed of a transurethral bladder sheath body, a bladder sheath outer pipe body, a movable bladder sheath inner core head, a bladder sheath inner pipeline, a movable bladder sheath inner core rod, a bladder sheath pipe check ring, a negative pressure suction water outlet pipeline and a movable transurethral bladder sheath rear cover. The bladder sheath is characterized in that a hollow negative pressure suction water outlet pipeline with an included angle of 60 degrees is arranged between the lower portion of the left front portion of the bladder sheath tube check ring and the horizontal transurethral bladder sheath body, and the negative pressure suction water outlet pipeline is communicated with the bladder sheath inner pipeline. Due to the adoption of the negative pressure suction water outlet pipeline, the transurethral bladder sheath can realize sustainable perfusion, negative pressure suction and waste liquid discharge and complete self-control perfusion during an operation, ensures safe internal pressure of a bladder cavity, keeps a clear view in the whole process of the operation, improves the lithotripsy efficiency, effectively simplifies the operation, relieves the operation fatigue, improves the efficiency and shortens the operation time; and the operation of a patient is safer.

This study proposed a PDA in-situ polymerization drug perfusion delivery system. By investigating the interaction relationship between the perfusion drug system and the body's signaling pathways and immune responses, the inhibitory mechanisms of manganese metal immune regulation, copper death-based synergistic therapy, novel protein drug immunotherapy, and enhanced traditional chemotherapy on bladder cancer cells were elucidated. Dopamine-mediated in-situ polymerization in the bladder cavity was used to load drugs, and the characteristics of polydopamine were combined to organically combine various drugs to form a new multi-functional bladder perfusion drug system with multiple effects in one. This simplifies the complexity of drug design, improves drug bioavailability, and ensures the realization of multi-modal synergistic therapy in the bladder.

The utility model discloses a bag type rotary jet grouting anchor rod structure which comprises an anchor rod assembly extending into an anchor rod hole and cement soil wrapping the anchor rod assembly, and the anchor rod hole is formed through the rotary jet grouting technology. The anchor rod assembly comprises an anchor cable set and two anchor disc assemblies, the two ends of the bag are each connected with one anchor disc assembly, the two ends of the steel cylinder are each connected with one anchor disc assembly, a bag containing cavity is formed between the steel cylinder and the bag, and an anchoring block formed by cement paste is arranged in the bag containing cavity. Each anchor cable of the anchor cable group is fixed on an anchor disc assembly; the jet grouting drill rod can abut against the anchor disc assembly, and the anchor rod assembly is fed into the anchor rod hole. The grouting pipe and the exhaust pipe are communicated with the bag containing cavity. According to the method, collapse of the anchor rod hole is avoided through the cement soil in the anchor rod hole, the surrounding soil body is compacted through the cement paste, and the strength of the surrounding soil body of the anchor rod hole is improved.

The bamboo charcoal memory foam structurally comprises a memory foam body, a bamboo charcoal layer glued to the upper surface of the memory foam body, a rubber layer arranged on the upper surface of the bamboo charcoal layer, a bag cavity embedded in the rubber layer, bamboo charcoal particles arranged in the bag cavity and a protruding layer arranged on the upper surface of the bag cavity. The bamboo charcoal memory foam has the beneficial effects that the rubber layer, the bag cavities and the bamboo charcoal particles are arranged in the bamboo charcoal memory foam, so that the overall good moisture absorption and deodorization effects of the memory foam are improved, and the overall memory foam is kept fresh and dry; the convex layer is arranged on the surface of the memory foam body, so that the comfort and the supporting performance of the memory foam cushion can be improved.

The present invention relates to the technical field of image analysis, and particularly relates to an ultrasonic imaging omics analysis method and system for the pathological characteristics of bladder tumors. The method includes: acquiring a target ultrasonic image corresponding to the bladder of a patient to be detected, and performing connected component segmentation on the target ultrasonic image; determining possible factors of the bladder cavity corresponding to the connected components; determining an abnormal bulge index corresponding to each edge pixel point on the screened bladder cavity connected components; screening out abnormal bulge edges from the bladder cavity connected components, and connecting the two end points of the abnormal bulge edges; determining a bladder tumor characteristic index corresponding to the abnormal bulge edge according to the shape rule of the abnormal bulge edge and the gray scale distribution between the abnormal bulge edge and its corresponding normal edge segment, so as to determine whether each abnormal bulge edge is a bladder tumor edge. By analyzing the pathological characteristics of bladder tumors in the target ultrasonic image, the present invention realizes the recognition of bladder tumors and improves the accuracy of bladder tumor recognition.