Automatic urine catheterization device for pressure measurement

Abstract

The invention provides an automatic urine catheterization device for pressure measurement. The automatic urine catheterization device comprises a urine catheter connector, a Y-shaped tee joint, a urination connector, a pressure measurement connector, a pressure measurement device, and a plurality of sections of pipes for connecting the urine catheter connector, the Y-shaped tee joint, the urination connector, the pressure measurement connector and the pressure measurement device. The automatic urine catheterization device is characterized in that a one-way valve is arranged in the urine catheter connector, a first control valve, a second control valve and an electromagnetic valve are arranged on near Y-shaped tee joint, the pressure measurement connector is internally provided with a hydrophobic membrane allowing gas to pass through and preventing tissue liquid to pass through, and a liquid measurement device is arranged on the lower end of the pressure measurement connector. The automatic urine catheterization device has the advantages that the urine catheterization device is matched with a urine catheter commonly used clinically, so that the automatic control on urination is realized, and the trouble of artificial nursing on urination is avoided; the one-way valve can effectively prevent the back flowing of urine, so that the urinary tract infection caused by the back flowing of urine is avoided; and the hydrophobic membrane can effectively prevent the urine from flowing back to a pressure sensor.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a urinary catheterization device, in particular to a pressure detection automatic urinary catheterization device. Background technique [0002] At present, the clinical use of urinary catheters is divided into two types: temporary (one-time) urinary catheters and indwelling urinary catheters, and indwelling urinary catheters are the mainstay. At present, there are two ways of indwelling catheterization: continuous catheterization and non-continuous catheterization. Continuous catheterization refers to inserting a urinary catheter so that the urine in the bladder can flow out anytime and anywhere; non-continuous catheterization refers to clamping the catheter at ordinary times and urinating when there is a urge to urinate (if the patient does not feel it, use the method of regular urination). method), similar to intermittent catheterization, the main purpose is to protect bladder...

AI Technical Summary

Problems solved by technology

The problem with the above-mentioned monitoring system in clinical use is that although a capillary tube is used to connect the urinary catheter and the sensor, to avoid as much as possible the urine from flowing into the sensor to contaminate the sensor, in order to realize the transmission of pressure, the capillary tube used to connect with the pressure sensor It is directly connected with the urination tube 22. When the gas in the tube expands with heat and contracts with cold, or the external pressure increases due to the shock generated during use, or the gas in the capillary is compressed due to the increase of urine pressure, there is still urine The chance and possibility of being sucked back into the capillary (urine reflux), and once the urine flows from the capillary to the pressure sensor, it will lead to a decrease in sensor sensitivity or even failure, which not only directly affects the accuracy of the measured bladder pressure, but also The patient brings safety hazards. In addition, the returned urine will contaminate the pressure sensor and easily cause cross-infection

The invention patent authorized and announced on June 17, 2015 - urinary catheterization device and abdominal pressure monitoring system (CN103055361B) is based on the above urinary catheterization device, and a buffer airbag is added at the rear end of the capillary. When heat expands and contracts with cold, or the external pressure increases due to shock, or the gas in the capillary is compressed due to the increase of urine pressure, the gas in the buffer airbag can enter the capillary in time as a supplement. Therefore, urine in the catheter is avoided. The phenomenon that the liquid is sucked back into the capillary (that is, the urine backflow) occurs, but the setting of the buffer airbag is not so sensitive to the changes in the outside world, and the phenomenon of urine backflow will still occur. At the same time, if the buffer airbag leaks, It can also lead to pressure sensing failure and other phenomena.

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