132 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 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 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.

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 shoe includes a shoe body and a micro-electromechanical pressure sensing module. The shoe body includes a sole and a vamp, and the sole has a toe part, a sole part, an arch part and a heel part in turn. The microcomputer pressure sensing module includes a toe pressure sensing capsule, a toe microcomputer pressure sensor, a sole pressure sensing capsule, a sole microcomputer pressure sensor, a heel pressure sensing capsule, a heel microcomputer pressure sensor, a processing unit and a power supply for the processing unit unit. The toe pressure-sensing capsule, the sole pressure-sensing capsule, and the heel pressure-sensing capsule bear corresponding pressure when the toe, sole and heel are under pressure. The toe microcomputer pressure sensor, the sole microcomputer pressure sensor, and the heel microcomputer pressure sensor sense corresponding pressure respectively, and convert the pressure into a corresponding pressure sensing signal. The processing unit is used to acquire corresponding pressure sensing signals to calculate the pressures on the toes, soles and heels respectively.

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.

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 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.

The invention discloses an intelligentized monitoring and urine-controlling device and system having the function of lower urinary tract urodynamics monitoring. The device comprises a catheter, a mechanical servo structure, a flow monitoring unit, a pressure monitoring unit, a wireless communication module, an alarm module and a processing unit, the pressure monitoring unit is arranged on the catheter and used for collecting bladder pressure, the pressure monitoring unit, the flow monitoring unit, the wireless communication module and the alarm module are connected with the processing unit, the flow monitoring unit collects urination volume, and the mechanical servo mechanism controls the catheter to be opened and closed. By means of the intelligentized monitoring and urine-controlling device, part of urodynamics detection functions are achieved, the device is small in size, low in weight and capable of being carried, data exchange can be conducted through the wireless communication module, and the device is safe and high in reliability.