17 results about "Into bladder" patented technology

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 invention discloses a fluid pump and medical equipment, and relates to the technical field of medical equipment, and the fluid pump comprises a connecting piece, a bag body and a valve rod. The connecting piece is used for being connected with a working element, one end of the bag body is connected with the connecting piece, the bag body is used for being switched among a retraction structure, a first inflation structure and a second inflation structure, the valve column is movably embedded in the connecting piece, the two ends of the valve column are connected with the first valve and the second valve respectively, and the other end of the bag body is connected with the first valve. The valve column is configured in the mode that in the first moving stage, the bag body is switched from the retraction structure to the first inflation structure so that external fluid can be guided into the bag body through the first valve, and in the second moving stage, the bag body is switched from the first inflation structure to the second inflation structure so that fluid in the bag body can be injected into the working element through the valve column, the second valve and the connecting piece. According to the fluid pump, the problem that an extension pipeline needs to be added for connection due to the fact that current balloon filling depends on an external power assembly is solved.

The urethra sheath device comprises an inner core, the inner core comprises an inner core column body, and the front end and the tail end of the inner core column body are communicated; the fixing sheath is arranged on the outer side of the inner core in a sleeving mode, the fixing sheath comprises a fixing sheath column body capable of moving in the axial direction of the inner core column body, the front end of the fixing sheath column body is fixed to the front end of the inner core column body, a distraction part is arranged at the position, close to the front end, of the fixing sheath column body, and the distraction part deforms to be distraction when the fixing sheath column body moves towards the front end; the hole closing device axially penetrates from the rear end of the inner core column body and extends out from the front end, or is positioned in the inner core column body and axially moves and is pulled out towards the rear end of the inner core column body; the pressure controller is installed at the tail of the inner core column body and communicated with the interior of the inner core column body, the pressure controller can detect the pressure in the bladder in real time and control the pressure in the bladder by effectively adjusting the water amount in the bladder, and the obturator can assist the urethral sheath in smoothly entering the bladder to avoid urethral injury when the urethral sheath is indwelled.

The utility model belongs to the technical field of urinary catheters, and discloses an anti-splashing urinary catheter with a supporting guide wire, which comprises a urinary catheter, one end of the urinary catheter is fixedly provided with a connecting valve, through the design of a protection mechanism and a urine collecting bag, urine can be effectively prevented from splashing, after the urinary catheter is inserted into the bladder, urine automatically flows into a transparent silica gel urine storage device, and the urine is prevented from splashing. After it is determined that catheterization succeeds and the guide wire completely retreats, the silica gel automatic closing hole in the tail end of the urine storage device is automatically closed, urine is in a closed state, then the connecting valve is disconnected from the threaded head, the latex isolation plug automatically rebounds, the connecting valve is connected with the threaded connector of the urine collection bag, the adjuster is opened, and the urine can smoothly flow into the urine collection bag. Before a urine collection bag is connected, an injector can be connected with the catheter connecting valve connector, a urine sample is extracted, and the problems that when a guide wire is removed after successful catheterization, splashing occurs due to urine pressure, sterile articles are polluted, and the occupational exposure risk of medical staff is increased are solved.

The utility model belongs to the technical field of bladder irrigation, particularly relates to a bladder irrigation device for urinary surgery, and provides the following scheme aiming at the problems in the background art that urinary tract blockage liquid medicine is difficult to enter a bladder and the irrigation pain of a patient is increased due to dysuria: the bladder irrigation device comprises a liquid medicine storage bag, an automatic flushing pipe is connected to the outer wall of one side of the liquid medicine storage bag, and a direction adjusting valve is installed on the outer wall of one end of the automatic flushing pipe. The direction of a channel in the direction adjusting valve can be changed by rotating the valve element in the direction adjusting valve, then switching between automatic flushing and manual flushing is achieved, a proper flushing mode can be selected according to needs in actual operation, the difficulty that liquid medicine enters the bladder is reduced, selectable modes are increased, practicability is higher, and the application range is wide. After liquid medicine enters the bladder of a patient, the air bag is compressed while the air release valve is opened back and forth, the pressure for extracting waste liquid of the bladder can be increased, urination of the patient is assisted, and pain of bladder irrigation of the patient is reduced.

An intravesical intermittent instillation catheter includes a tube containing a urinary lumen and an instillation lumen. The proximal end has a set of drainage eyelets, formed in a wall of the tube, that are in communication with the urinary lumen as well as a set of instillation eyelets, formed at a tip of the proximal end, in communication with the instillation lumen. A sheath is slidably mounted to surround the tube and having first and second axial positions wherein, in the first position, the drainage eyelets are exposed and, in the second position, the drainage eyelets are covered by the proximal end of the sheath. In operation of the catheter, when the sheath is in the first position, drainage of urine can proceed through a path including the drainage eyelets, the urinary lumen, a drainage connector, and a urinary collection bag and, when the sheath is in the second position, instillation of the medicament can thereafter proceed from a syringe, through an instillation connector, the instillation lumen, and the instillation eyelets and into the bladder.

The novel urinary catheter comprises a drainage tube, a urinary catheterization head is arranged at the end of the drainage tube, a liquid outlet tube is fixedly connected to the end, away from the urinary catheterization head, of the drainage tube, a water injection tube is fixedly connected to one side of the outer wall of the liquid outlet tube, and a water injection hard valve is fixedly connected to the end of the water injection tube. A developing line is arranged in the drainage tube in a penetrating mode, an umbrella-shaped air bag is arranged on the outer wall of the end, close to the catheterization head, of the drainage tube, and a liquid outlet is formed in the outer end of the liquid outlet tube. The drainage tube, the water injection tube and the umbrella-shaped air bag are matched with one another, the umbrella-shaped air bag is designed and can be tightly attached to the bladder wall and the urethral orifice after water injection, urine leakage is effectively blocked, meanwhile, bacteria are prevented from entering the bladder along the catheter in a retrograde mode through a unique sealing structure, and the risk of urinary system infection is greatly reduced.

The utility model discloses a kind of air spring bladder with vulcanization supporting ring composite cord structure, including bladder, the bladder is divided into bladder big head, bladder working area and bladder small head, the bladder big head part is three layer cord structure, the bladder working area and bladder small head part are single layer cord structure, and the overall thickness of bladder working area and bladder small head part is thinner than the thickness of bladder big head part, the inner diameter of bladder working area gradually decreases from bladder big head to bladder small head area, and supporting ring is fixed on the inner wall of bladder big head by vulcanization bonding mode. The air spring bladder of the utility model uses different reinforcing layer structure design, which can not only ensure the expansion outer diameter and burst pressure of the product, but also effectively reduce the product thickness of working area to improve its flexibility, reduce the air spring hysteresis force and improve the product comfort.

According to the technical scheme, the catheter capable of achieving the constant bladder capacity is characterized in that the catheter comprises a catheter body, the catheter body comprises an inner pipeline, an outer pipeline and an insertion body, the head ends and the tail ends of the inner pipeline and the outer pipeline are closed to form an interlayer cavity, a through hole is communicated with the inner pipeline, a small balloon is arranged on the outer pipeline, and the small balloon is communicated with the insertion body. The outer pipeline is provided with a first injection pipe, the first injection pipe is communicated with the small balloon through the interlayer cavity, the guide pipe body is provided with a large balloon, the outer pipeline is provided with a second injection pipe, and the second injection pipe is communicated with the large balloon through a connecting pipe; the small balloon and the large balloon are arranged on the catheter body, after the catheter body is placed into the bladder, a certain amount of liquid needs to be injected into the small balloon before radiotherapy to achieve the effect of fixing the catheter body, and a certain amount of air or normal saline is injected into the large balloon during radiotherapy every time, so that the constant bladder capacity is achieved; therefore, the radiotherapy accuracy is improved, and the radiotherapy treatment effect is improved.

The invention discloses a targeted drug delivery biological hybrid micro-robot as well as a preparation method and application thereof. The micro-robot takes sperms as an active propulsion unit, and is constructed by combining PDA-DOX-FA nanoparticles through a coupling strategy; stable coupling of sperms and nanoparticles is realized through electrostatic adsorption, a biotin-streptavidin system or covalent binding. The micro-robot can enter the bladder through urethra perfusion, arrives at a tumor area depending on the autonomous propelling speed of sperms, realizes stable retention through folic acid targeted recognition and adhesion of neutrophil extracellular trapping nets (NETs), and realizes controllable release of adriamycin and deep penetration of tumors through a photothermal effect triggered by 808 nm near-infrared light. The problems of short retention, non-uniform distribution, insufficient permeation and the like of traditional bladder cancer perfusion treatment medicines are solved, the treatment efficiency and safety are remarkably improved, and the method is suitable for local precise treatment of bladder cancer.

The present invention discloses a urology clinical catheter assembly device, which belongs to the technical field of urology, and includes a fixing frame, the bottom of which is connected to a urine storage box, the top of which is connected to a hose, and a drainage ball head designed at one end of the hose away from the fixing frame. The present invention, during the intubation process, discharges urine through a detection hole arranged on the side of the liquid sac away from the drainage ball head, thereby automatically detecting whether the liquid sac has completely entered the bladder, ensuring the liquid sac filling and fixing effect, and at the same time avoiding the influence and interference of residual urine in the urethra on the intubation, avoiding accidental damage to the patient's urethra and bladder during the intubation and liquid sac filling process, and during the subsequent liquid sac filling and installation, the connection between the liquid sac and the sealing cavity 1 can push the valve block 1 to move to change the connection state of the detection hole, thereby realizing single-channel urination of the drainage ball head, ensuring the stability of urine drainage, and reducing the risk of urinary tract infection.

This invention discloses an engineered extracellular vesicle system for constructing an in situ cell factory, its preparation method, and its applications. Specifically, it involves the in situ production of drug molecules with cytotoxic effects within bladder cancer cells under urea-mediated conditions, enabling the application of a urea-mediated targeted in situ killing system for the precision treatment of bladder cancer. Leveraging the unique microenvironment of a high urea concentration of 300 mmol / L within the bladder where bladder cancer lesions are located, an engineered extracellular vesicle system, P@EV, is constructed. VR+U Through the synergistic effect of RGD tumor targeting, VSVG pH-responsive membrane fusion and UTB urea transport function, PGA-1 can be efficiently delivered into bladder cancer cells, promoting intracellular urea accumulation and in situ generation of the cytotoxic product Compound-1.

An intravesical intermittent instillation catheter (100) includes a tube (100) containing a urinary lumen (108) and an instillation lumen (107). The proximal end has a set of drainage eyelets (104), formed in a wall of the tube, that are in communication with the urinary lumen as well as a set of instillation eyelets, formed at a tip of the proximal end, in communication with the instillation lumen. A sheath (122) is slidably mounted to surround the tube and having first and second axial positions wherein, in the first position, the drainage eyelets are exposed and, in the second position, the drainage eyelets are covered by the proximal end of the sheath. In operation of the catheter, when the sheath is in the first position, drainage of urine can proceed through a path including the drainage eyelets, the urinary lumen, a drainage connector, and a urinary collection bag (180) and, when the sheath is in the second position, instillation of the medicament can thereafter proceed from a syringe, through an instillation connector, the instillation lumen, and the instillation eyelets and into the bladder.

This application discloses a method for predicting bladder volume between and within radiotherapy fractions, belonging to the field of precision radiotherapy. The method includes: acquiring a sequence of fan-beam CT images of multiple completed treatment fractions for a patient, including pre-treatment images, pre-exit images, and post-exit images for each fraction; segmenting the images into bladder regions to construct a temporal volume dataset; determining the predicted bladder volume before the next treatment fraction using an inter-fraction prediction model; and determining the predicted bladder volume at a specified time point during the current treatment fraction using an intra-fraction dynamics model. The input to the inter-fraction prediction model includes at least one of volume sequence, water intake information, and extracted features; the input to the intra-fraction dynamics model includes at least one of the current pre-treatment bladder volume and daily water intake information. This application achieves dual-timescale prediction of bladder volume, providing a prospective decision-making basis for adaptive radiotherapy and improving the accuracy and safety of radiotherapy.

The present application discloses a multi-channel liquid output monitoring device capable of recognizing colors, which relates to the technical field of medical devices. One end of the urinary catheterization channel enters the bladder through the urethra, and the other end is communicated with a urine storage bag; the urine flow rate of the urinary catheterization channel is monitored by a flow sensor, and the urine color of the urinary catheterization channel is monitored by an optical sensor; it is compared with the normal urine standard range; when the monitored urine flow rate and / or urine color exceeds the normal range, an alarm is issued through an alarm device to remind medical staff and / or patients to pay attention and take measures; a plurality of sub-channels are further arranged on the urinary catheterization channel, and each sub-channel is provided with a first switch, which is opened when it is recognized that the urine flow rate and / or urine color is abnormal, so that the urine enters the sub-channel for sampling, avoiding the difficulty of observing and sampling urine at the same time or at different time periods; the sub-channel is opened again when it is recognized that the urine is abnormal, realizing the targeted preservation of abnormal urine and effectively reducing the number of sub-channels.

The utility model is suitable for medical consumable technical field, provide a kind of fast insertion switching type bladder irrigation tube, including catheter and conversion joint, conversion joint includes cylindrical casing, and casing one end has first pipe orifice, side wall is provided with second pipe orifice and third pipe orifice, catheter is connected with second pipe orifice, and switching core is equipped in casing.When needing to flush, directly flush connector is inserted into first pipe orifice, drives inside switching core to move, so that flush connector is communicated with second pipe orifice, and flushing fluid can enter into bladder, and flush connector is removed after flushing, and switching core is automatically reset, and second pipe orifice and third pipe orifice are automatically communicated, so that flushing waste liquid in bladder can be discharged into urine collection bag from third pipe orifice. The whole process only needs to plug flush connector, and it is simple to operate.

1. The name of the design product: ureteral flexible scope. 2. The use of the design product: through the urinary tract to enter the bladder and renal pelvis, and to diagnose and treat surgical diseases. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.