135 results about "Bladder pressure" patented technology

A urinary flow control device having a bladder responsive flow control assembly operatively engaged with an elongate member having proximal and distal ends, and a lumen capable of discharging urine therethrough is provided. The flow control assembly includes first and second fluid containing compartments adapted to be in fluid communication. The flow control assembly is adapted to receive and contain urine from a bladder so as to impinge upon the first fluid containing compartment. The flow control assembly is responsive to increased bladder pressure such that fluid is displaced from the first fluid containing compartment to the second fluid containing compartment to thereby permit select passage of received urine to the lumen of the elongate member for discharge therethrough. A method of controlling urinary flow is likewise provided.

The present invention generally relates to blood pressure monitoring. In some embodiments, methods and devices of measuring a mean arterial pressure are provided and / or monitoring blood pressure changes. A wrist-worn device may include a plurality of sensors backed by a plurality of actuators. Subsets of the plurality of sensors may be selectively actuateable against a wrist of a user using one or more of the plurality of actuators. A preferred sensor and location may be identified based on pressure signals received from each of the sensors. In some embodiments, devices may use a fluid bladder coupled with piezoelectric film sensors. A fluid bladder pressure sensor may be used to calibrate the piezoelectric film signal to provide a static and dynamic pressure reading. In yet another embodiment, a mean arterial pressure may be calculated by processing a swept pressure signal obtained as a sensor is swept through different heights.

An adjustable pressure cuff device is provided for the arm or leg of a user for stimulating blood flow and preventing blood clots. The pressure cuff contains a number of bladders which wrap in the direction of the cuff and which are arranged in succession down the arm or leg of a user. An air compressor is connected to the bladders via a multiplicity of tubes, each of which contain a valve. A control module runs the air compressor and sequentially opens the valves to provide air pressure to the bladders in succession along the arm or leg of a user. Further, between the bladders and the valves, additional tubes containing valves are provided to equalize pressure between bladders before exhausting the air from a previously pressurized bladder to save power and allow for increased patterns of bladder pressure. The pressure levels and bladder dwell times may be adjusted by the user or based on predetermined settings. Optionally, the device provides electrical stimulation, pulsations, heating, and cooling.

An apparatus for monitoring the intra-abdominal pressure of a patient includes a urinary catheter (102) connected to a urine valve (250) providing selectable communication between a discharge end of the urinary catheter (102) and either a drain (224) or a fluid source (104). Preferably, the urine valve (250) is adapted for remote actuation and has a housing adapted to resist patient discomfort from leg-valve (250) contact. Plumbing structure desirably maintains fluid supply (225) and drain (223) conduits in a substantially parallel arrangement to assist routing those conduits (225, 223) between a patient's legs. When the urine valve (250) is oriented to permit communication with the fluid source (104), an infusion pump (116′) may be used to infuse a known quantity of fluid through the urine valve (250) and into the patient's bladder (216). A pressure transducer (218) desirably is connected in-circuit to indicate the fluid's pressure and avoid pressure fluctuations induced by system components. To facilitate the infusion process, an automatic flow control device may be included in a fluid supply path (225) and arranged to permit repetitive operation of a syringe (116′) to inject a bolus of fluid into the patient's bladder (216). Subsequent to making a pressure measurement, the urine valve (250) is returned to the bladder (216) draining position.

An implantable urodynamic system includes an implantable first device deployable in a patient's bladder, an implantable second device deployable in a patient's vaginal canal, and a data acquisition and analysis module or processing unit external to the body of the patient. The first device includes a magnet and an inductive coil, and the second device includes a magnet, an inductive coil and a battery. When deployed in the patient's body, attraction between the magnets maintains the two devices in close proximity to one another to effect an inductive coupling between the coils so that the first device may be powered by the battery of the second device. The urodynamic system is intended to facilitate measurement, collection, and wireless transmission of real-time, or near real-time, data (bladder pressure, abdominal pressure, and temperature) from an ambulatory patient. This data is of value in diagnosing a number of abnormal bladder conditions, such as infection, overactive bladder, bladder spasms, and the like.

A device measures pressures in animals and humans and includes a pressure transmission catheter (PTC) filled with a pressure transmitting medium and implantable in an area in having a physiological pressure. A transducer communicates with the pressure transmitting medium to provide a pressure signal representing variations in the physiologic pressure on electrical wires. A connecting catheter carries the electrical wires to signal processing and telemetry circuitry, which transmits a telemetry signal representing the pressure signal to a receiver external to the animal or human. A housing holds the signal processing and telemetry circuitry, but the transducer is remote from the housing. The device is particularly useful in measuring venous pressure, pulmonary pressure, bladder pressure, or intracranial pressure without significant head pressure artifact and with a sufficient dynamic response. One embodiment of the PTC includes a multi-durometer stem.

Systems and Methods treat bladder dysfunctions using neuromodulation stimulation. Bladder emptying through stimulation of urethral afferents, and continence through stimulation of the dorsal genital nerve, is provided with one or more implanted pulse generators and one or more leads. A simple surgical procedure preserves all existing functions. A stimulating catheter is provided to be used as a clinical screening tool. The stimulating catheter is used to measure bladder pressures and stimulate the urethra at the same time.

A passive-pumping liquid feed fuel cell system includes a cartridge module, a fuel delivery module, a fuel cell module and an exhaust module. In fuel delivery mode, a bladder in the cartridge module is passively pressurized by permeable gas separated from liquid fuel to a pressure greater than fuel cell pressure, and doses are delivered to the fuel cell by controlling a single fuel valve. In fuel return mode, unused liquid fuel is separated in the exhaust module while the fuel cell is operated in a temporary high load mode, thereby generating anode gas pressure greater than bladder pressure and transferring unused fuel back to the bladder. The returned fuel maintains bladder volume and internal pressure for ongoing fuel dosing. The system provides compact and efficient micro-dose operation of low power formic acid fuel cells, and is operable with highly concentrated stored fuel and resulting high energy capacity.

A fuel cartridge stores and delivers a vaporizable liquid fuel stream to one or more fuel cells. The cartridge includes a housing with an interior cavity, a fuel stream port with a bidirectional flow valve, a pressure relief valve for discharging a gas stream at a set pressure, a bladder located within the interior cavity and formed from a liquid-impermeable and gas-permeable liner, and a compression mechanism for imparting positive pressure to the bladder. In a fuel storage mode, the compression mechanism induces flow of vaporous fuel through the bladder liner. When the fuel cell fuel stream inlet pressure is less than the bladder pressure, the bladder discharges a liquid fuel stream in a fuel delivery mode. When the fuel cell fuel stream inlet pressure is greater than the bladder pressure, the fuel cell outlet fuel stream is returned to the bladder in a fuel return mode.

A portable, self-contained medical diagnostic system is provided for assessing urinary function. The system includes a control device including a processor, a pump device, and a pressure sensor, and a test module removably coupled to the control device, and further including a pressure interface and a tubing assembly defining a first fluid conduit between a first fluid inlet and a first fluid outlet. The pump device is coupled to the first fluid conduit for pumping fluid therethrough. The system also includes an insert member having a first channel therethrough and coupled to the first fluid outlet so that fluid flowing through the first fluid conduit may flow through the first channel. The insert member is dimensioned for insertion into a patient's bladder through the urethral canal. When so inserted, the pressure interface transmits bladder pressure information to the pressure sensor.

Here provided are systems and methods for monitoring bladder and / or abdominal pressures, and a bladder function recovery device. In the systems and methods, the bladder pressure can be detected in real time with a bladder pressure detection unit that is communicated with a urinary catheter. In addition, the abdominal pressure can also be obtained in real time according to the corresponding relationship between the bladder pressure and the abdominal pressure. Furthermore, the bladder function recovery device can be used for bladder function recovery for patients in need.

An apparatus and method for providing pressure for bonding parts together. The apparatus may comprise a plurality of bladders independently actuatable to apply pressure for pushing a second part toward a first part having adhesive thereon. The apparatus may further comprise a frame supporting a plurality of reconfigurable bladder retainer devices positioned and angled such that the configuration of the bladders matches the contour of the second part. The bladders may expand and contract according to a sequence dictated by a control device, such that excess air and adhesive between the first and second part may be substantially squeegeed toward outer edges of the parts.

The invention provides a urethral catheterization device and an abdominal pressure monitoring system. The urethral catheterization device comprises a catheter and a drainage bag used for collecting liquid in the catheter. A capillary tube to be connected to a pressure sensor is communicated with the catheter. A first control valve is disposed on the catheter and between the capillary tube and the drainage bag. A buffer sac is disposed on the capillary tube and close to the connection of the capillary tube with the catheter. The buffer sac disposed on the capillary tube effectively prevents urine in the catheter from being reversely sucked into the capillary tube, so that the urine is effectively prevented from flowing back to the sensor to disable the same, accuracy in urinary bladder pressure detected by the pressure sensor is guaranteed, pollution of the pressure sensor by the urine is also prevented and cross infection caused by the reuse of the sensor is avoided.

Here provided are systems and methods for monitoring bladder and / or abdominal pressures, and a bladder function recovery device. In the systems and methods, the bladder pressure can be detected in real time with a bladder pressure detection unit that is communicated with a urinary catheter. In addition, the abdominal pressure can also be obtained in real time according to the corresponding relationship between the bladder pressure and the abdominal pressure. Furthermore, the bladder function recovery device can be used for bladder function recovery for patients in need.

The invention relates to a urine flow monitoring and control device and a matched pipeline thereof and belongs to medical apparatus and instruments which are used for performing urination control, urine volume monitoring and urine collection on a patient with a retention catheter. The urine flow monitoring and control device and the matched pipeline are relatively independent. The switching of the urine volume monitoring mode can be automatically achieved through a flow and velocity measurement module and a gravity sensor according to the different clinical requirements. Meanwhile the dynamic monitoring is performed on the bladder pressure, closing or opening of the pipeline is automatically controlled by a cut-off valve according to the obtained pressure of urine in the bladder under different filling conditions through calculation, the mode is similar to the urine retention and urination mode of a normal human body basically, and accordingly the patient can obtain the good maintenance and exercise during the catheter retention period and the incidence rate of adverse reactions such as the urinary dysfunction and the like caused by the catheter retention can be greatly avoided.

A system evaluates a patient for a physiological abnormality. A urinary catheter is insertable within a patient's bladder and has a first pressure sensor for measuring bladder pressure and a second pressure sensor for measuring mid-urethral pressure at the mid-urethral sphincter. A processing device is connected to the first and second pressure sensors and configured to receive the measured bladder pressure and measured mid-urethral pressure during at least one breath cycle and process the data representative of the bladder and mid-urethral pressures obtained during the at least one breath cycle to diagnose a physiological abnormality within the patient.

A system for detecting and measuring increased global or local intracranial pressure includes various devices for performing controlled occlusion of jugular cranial blood outflow and generating occlusion data related to said controlled occlusion, a cranial blood outflow pressure measurement device and a processor for processing jugular cranial blood outflow occlusion data and cranial blood outflow data to identify and / or measure a functional relationship between the jugular controlled occlusion and the jugular cranial blood outflow pressure. A device communicates the functional relationship a display device and / or a patient monitoring system. The processor also detects a state of equilibrium between the jugular cranial blood outflow pressure and the jugular occlusion pressure at occlusion. In yet another embodiment, intracranial and extracranial vessel compliance is measured by NIRS system, the equilibrated using external compression bladder, and equilibrium bladder pressure is displayed as local intracranial pressure.

The invention discloses an urinary bladder pressure alarm automatic control urine discharging device which comprises an urethral catheter, a switch, an urinary bladder pressure sensor and an in vitro pressure data signal receiving storage alarm, wherein one end of the urethral catheter is provided with an air bag and an urethral catheterization port; the other end of the urethral catheter is provided with an urine discharging port communicated with the urethral catheterization port and an air bag valve communicated with the air bag; the switch is arranged on the urine discharging port and is used for controlling to open and close the urine discharging port; the urinary bladder pressure sensor is arranged on the switch and is used for detecting the pressure in the urinary bladder; and the in vitro pressure data signal receiving storage alarm is used for receiving a pressure signal sent by the urinary bladder pressure sensor and sending alarm information when the pressure signal exceeds a set value. The urinary bladder pressure alarm automatic control urine discharging device is convenient to use. The influence of the retained urethral catheter on the daily life of a patient is greatly reduced. A data signal can also be remotely transmitted to a hospital by the wireless network, so that a doctor analyzes the variation of the bladder function of the patient and provides important reference basis for diagnosis and treatment of diseases.

A method for determining status of a drying cycle comprises receiving, at a first time, a first signal from a bladder pressure sensor configured to be responsive to changes in a weight of a container of the dryer, the container retaining materials to be dried. At a second time, the controller receives a second signal from the bladder pressure sensor. A change in the bladder pressure signals is calculated based on difference between the second signal and the first signal, and the change in the bladder pressure signals is interpreted as a change in the weight of the container. Based on the change in the weight of the container and the length of time, a rate of change in the weight of the container is calculated.

The invention discloses a pressure measurement noninvasive anti-blocking urine guiding device. The pressure measurement noninvasive anti-blocking urine guiding device comprises a catheter, a bladder pressure measurement module, an internal urethral orifice blocking module, a noninvasive air sac module, a diluted liquid injection module, a sterilization module, a urine storage module and an anti-blocking urine guiding module. The pressure measurement noninvasive anti-blocking urine guiding device is delicate and reasonable in structural design, utilizes the negative pressure suction principle, can still drain urine when a few blood clots and other foreign materials are generated inside the bladder, effectively guarantees the urine guiding and drainage effects, and enables a user to visually know the condition of the pressure inside the bladder through the bladder pressure measurement module and know the urine guiding and drainage effects and the circulation condition of a drainage passage in real time when indwelled in a urethral catheter. The noninvasive air sac module wraps the catheter, can achieve the function of negative pressure suction, and can relieve the pain in urethral catheterization. The sterilization module can sterilize the indwelled catheter for long time, largely reduces the occurrence rate of infection caused by the indwelled catheter, guarantees use safety, prolongs the effective indwelling time, reduces the frequency of replacing the urethral catheter, largely saves medical cost and relieves the pain of patients.

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 provides a bladder function recovery apparatus. The bladder function recovery apparatus comprises an irrigation device, a urine drainage device, a bladder pressure acquisition unit and a central processing unit. The irrigation device comprises an irrigation bag, an irrigation tube and a first control component and is used for charging liquid medium in the irrigation bag to a bladder. The urine drainage device comprises a drainage bag, a urine drainage tube and a second control component and is used for draining the liquid medium in the bladder into the drainage bag. The bladder pressure acquisition unit is communicated with the urine drainage device. The central processing unit is connected with the first control component, the second control component and the bladder pressure acquisition unit and compares bladder pressure with maximal preset pressure and minimal preset pressure. When the bladder pressure is equal to or larger than the preset pressure, the first control component is closed, and the second control component is opened. When the bladder pressure is smaller than or equal to the minimal preset pressure, the second control component is closed, and the first control component is opened. The bladder function recovery apparatus can be used for bladder function recovery training for a patient with an indwelling catheter, and cystatrophy caused by long-term urination disorder is prevented.

A system for detecting and measuring increased global or local intracranial pressure includes various devices for performing controlled occlusion of jugular cranial blood outflow and generating occlusion data related to said controlled occlusion, a cranial blood outflow pressure measurement device and a processor for processing jugular cranial blood outflow occlusion data and cranial blood outflow data to identify and / or measure a functional relationship between the jugular controlled occlusion and the jugular cranial blood outflow pressure. A device communicates the functional relationship a display device and / or a patient monitoring system. The processor also detects a state of equilibrium between the jugular cranial blood outflow pressure and the jugular occlusion pressure at occlusion. In yet another embodiment, intracranial and extracranial vessel compliance is measured by NIRS system, the equilibrated using external compression bladder, and equilibrium bladder pressure is displayed as local intracranial pressure.

A urinary urine bladder pressure testing, assessing and training method comprises a douche bag, a urine collection bag and a catheter, wherein one end of the catheter is communicated with a patient' bladder; the catheter is connected with a main catheter through a connector; an automatic switching solenoid valve is arranged at the front part of the main catheter, and is provided with a bypass outlet; the bypass outlet of the automatic switching solenoid valve is connected with the urine collection bag through a duct I; a tee joint is arranged in the middle of the main catheter; the douche bag is connected with the tee joint through a duct II; a controllable plug is arranged at the rear end of the main catheter; a pressure sensor is mounted at the rear part of the main catheter in a position close to the controllable plug; a peristaltic pump is mounted between the duct II between the douche bag and the tee joint; and a urine weighing sensor is mounted on the urine collection bag. Through pressure testing in the patient' bladder, transmission of pressure information to an integrated control system, and control of the automatic switching solenoid to carry out automatic switching through the integrated control system, the method is intuitive to operate, the obtained data figure line is accurate, and the curing effect is improved.

A system and method for easily and frequently checking the gas bladder pressure levels in a sports player's helmet and refilling them to maintain optimum head protection for the player. The system and method involve an electronic hand-held gas pump that wirelessly communicates with an adjacent wireless device that comprises a software application for controlling pump operation. The software application allows a user to build a player helmet profile that automatically displays current gas pressure in the gas bladder to which the pump is currently connected. The system and method establish a preferred gas pressure level for every bladder in the helmet when the helmet is being worn and when the helmet is not being worn. Spreadsheets for an entire team can be generated, not only depicting the preferred gas pressure levels but time / date data for periodic checks in order to maintain every bladder to its preferred gas pressure level.

An adjustable pressure cuff device is provided for the arm or leg of a user for stimulating blood flow and preventing blood clots. The pressure cuff contains a number of bladders which wrap in the direction of the cuff and which are arranged in succession down the arm or leg of a user. An air compressor is connected to the bladders via a multiplicity of tubes, each of which contain a valve. A control module runs the air compressor and sequentially opens the valves to provide air pressure to the bladders in succession along the arm or leg of a user. Further, between the bladders and the valves, additional tubes containing valves are provided to equalize pressure between bladders before exhausting the air from a previously pressurized bladder to save power and allow for increased patterns of bladder pressure. The pressure levels and bladder dwell times may be adjusted by the user or based on predetermined settings. Optionally, the device provides electrical stimulation, pulsations, heating, and cooling.