CN109091709B

CN109091709B - Device for collecting bladder pressure and liquid drainage control system

Info

Publication number: CN109091709B
Application number: CN201710473030.8A
Authority: CN
Inventors: 张月梅; 张众; 刘艳; 刘万鹏; 刘立军
Original assignee: Beijing Winsunny Harmony Science And Technology Co ltd
Current assignee: Beijing Winsunny Harmony Science And Technology Co ltd
Priority date: 2017-06-21
Filing date: 2017-06-21
Publication date: 2024-04-05
Anticipated expiration: 2037-06-21
Also published as: CN109091709A

Abstract

The invention provides a device for collecting bladder pressure and a liquid drainage control system, which comprises a main body part, a pressure sensing part, a control valve and a calibration part, wherein the pressure sensing part can monitor bladder pressure and output a pressure signal, and the control valve controls whether a liquid inlet and a liquid outlet are communicated or not according to the pressure signal so as to control urination of a patient; the calibration component can clear the pressure signal generated by the clear pipeline between the pubis of the human body and the pressure sensing component, so that the accuracy of bladder pressure and abdominal pressure detection is prevented from being influenced, the function of assisting a patient in urination is realized, and the accuracy problem of the patient in the using process is effectively solved.

Description

Device for collecting bladder pressure and liquid drainage control system

Technical Field

The invention relates to a device for collecting bladder pressure and a liquid drainage control system, which are mainly used for monitoring the bladder pressure of a human body and controlling the drainage of urine, and belong to the technical field of medical appliances.

Background

The catheter used clinically is of various types, most of paraplegia and hemiplegic patients caused by cerebrovascular and spinal vascular diseases are accompanied with barriers in urination, the indwelling catheter is a common operation widely used in various departments of the clinic at present, and the traditional catheter consists of a catheter inserted into urethra and a urine bag connected with the lower end of the catheter. However, the continuous removal of urine from the patient's bladder through the catheter over a long period of time can slowly degrade the bladder's function of inflation and deflation, and thus a need exists for a device that will catheterize in response to changes in pressure within the bladder. In addition, the conventional catheters can not realize dynamic intra-abdominal pressure monitoring, and can not assist doctors in judging patient conditions. According to a specific relation curve between the bladder filling urine volume and the bladder wall detrusor pressure of a patient, namely bladder compliance characteristics, when the bladder filling urine volume reaches a certain amount, detrusor muscle does not shrink, intra-abdominal pressure of the patient is patient cystostatic pressure, the patient cystostatic pressure is automatically captured in real time by utilizing the structural design of the product, the patient cystostatic pressure is automatically identified and calculated by utilizing a software system, and a patient cystostatic pressure trend chart is output, so that a basis can be provided for clinically judging the intra-abdominal pressure change condition of the patient.

Chinese patent CN201210084275.9 discloses a system and a method for monitoring bladder pressure and abdominal pressure, wherein the monitoring system comprises a bladder pressure acquisition unit, a central processing unit, a display unit, and a capillary tube for communicating the bladder pressure acquisition unit with a catheter, and although the abdominal pressure is obtained by using the correspondence between bladder pressure and abdominal pressure, the accuracy of pressure monitoring is not affected by taking into account the difference in height between the bladder pressure acquisition unit and pubic symphysis of a human body, and further the accuracy of bladder pressure and abdominal pressure monitoring is affected.

Therefore, the traditional urethral catheterization device cannot finish the task of diagnosing and treating the illness of the patient, and medical instrument research and development personnel need to search for a urethral catheterization medical instrument capable of accurately monitoring the bladder pressure and the abdominal pressure of the human body, safely realizing the urine drainage control and protecting the bladder and urinary tract functions of the patient.

Disclosure of Invention

The invention provides a urethral catheterization device capable of accurately monitoring the bladder pressure and the abdominal pressure of a human body, safely realizing urine drainage control and protecting the bladder and urinary tract functions of a patient, so as to solve a plurality of inconveniences brought by a traditional drainage device to the patient, and mainly solve the technical problem that the bladder pressure and the abdominal pressure of the traditional catheterization device cannot be monitored in real time or the monitoring data is inaccurate.

The invention aims to provide a device for collecting bladder pressure, which comprises: the device comprises a main body part, a pressure sensing part, a control valve and a calibration part, wherein the main body part comprises a monitoring control cavity with an internal cavity, one end of the monitoring control cavity is provided with a liquid inlet, the upper end of the liquid inlet is communicated with a urethral catheterization pipeline, the other end of the monitoring control cavity is provided with a liquid outlet, and the liquid outlet is communicated with a liquid collecting bag through a liquid pipeline; the pressure sensing component comprises a monitoring part and an output part, wherein the monitoring part is positioned in the monitoring control cavity, and can sense the pressure generated by the liquid in the monitoring control cavity and output a pressure signal through the output part; the control valve is positioned between the pressure sensing component and the liquid outlet and comprises a valve body, a handle and a transmission part, wherein the valve body is positioned in the monitoring control cavity and is used for controlling whether the liquid inlet is communicated with the liquid outlet; still include calibration part, this calibration part is located and inserts between human pipe and the catheterization pipeline, including the governing valve, advance urine intercommunication mouth, go out urine intercommunication mouth and atmosphere intercommunication mouth, advance urine intercommunication mouth and insert human pipe and be linked together, go out urine intercommunication mouth and catheterization pipeline and be linked together, atmosphere intercommunication mouth and external atmosphere intercommunication, this governing valve seals atmosphere intercommunication mouth, will advance urine intercommunication mouth and go out urine intercommunication mouth intercommunication, perhaps seals into urine intercommunication mouth, will go out urine intercommunication mouth and atmosphere intercommunication mouth intercommunication.

The device for collecting the bladder pressure is an electronic urine collecting bag with the functions of monitoring the bladder pressure and automatically controlling urine and discharging urine, and the upper end of the electronic urine collecting bag can be provided with an inserted human body catheter which is directly used for entering the bladder of a human body to drain urine of the human body; of course, the utility model can also be connected with the existing common catheterization drainage pipeline, and the functions of monitoring the bladder pressure and automatically controlling and discharging urine by the device are not affected. The main part of the device is a hollow tubular part with a monitoring control cavity, the liquid inlet at the upper part of the tubular part is communicated with a urethral catheterization pipeline, the liquid outlet at the lower part of the tubular part is communicated with a liquid collecting bag for collecting urine discharged from the bladder through the liquid pipeline, and the integrally formed urethral catheterization path is as follows: the device comprises a human bladder, an inserted human catheter, a catheterization pipeline, a main body part, a liquid pipeline and a liquid collecting bag, wherein the inserted human catheter can not be a component part of the device and is a common catheterization drainage pipeline; of course, the device can also be an integral part of the device and is connected and communicated with the urine inlet communication port of the calibration component. The catheterization pipeline and the liquid pipeline that this device set up all have certain length, mainly make things convenient for the patient to carry out the position removal for the device, also make things convenient for the liquid collecting bag hook at the bedside. The pressure sensing component is arranged at the position of the side wall of the tubular component of the main body part of the device, which is communicated with the monitoring control cavity, and comprises a monitoring part and an output part, wherein the monitoring part senses the pressure change in the monitoring control cavity, namely the pressure change in the bladder of the human body; the output part outputs the pressure signal in a wired or wireless mode, and the wireless mode is realized by connecting the output part with the miniature wireless transmission module. In order to realize the function of controlling urination and urination according to bladder pressure, a control valve is arranged between the pressure sensing component and the liquid outlet, the control valve comprises a valve body, a handle and a transmission part, wherein the valve body is positioned in a monitoring control cavity and is used for controlling whether the liquid inlet is communicated with the liquid outlet or not, the handle is used for manually controlling the displacement of the valve body in the monitoring control cavity and controlling whether the liquid inlet is communicated with the liquid outlet or not, the transmission part is electrically controlled, the transmission part and the handle are connected into a whole and are simultaneously displaced, and whether the liquid inlet is communicated with the liquid outlet or not is controlled.

The prior art discloses that the catheter is provided with a pressure sensor at one end inserted into the bladder, but the technical scheme has a plurality of defects, such as easy failure of the pressure sensor in urine in the bladder of a human body, higher replacement cost of the catheter, easy damage to the urethra of a patient due to frequent replacement of the catheter, and the like. In another mode, the pressure sensor is arranged on the pipeline at the upstream of the urine collecting bag, the urine collecting bag is only required to be replaced when necessary, the catheter is not required to be replaced frequently, but in order to accurately measure the bladder pressure and the abdominal pressure, the pressure sensor is required to be arranged at the level of pubic symphysis of a human body, and the arrangement mode brings various limitations to the change of the body position of the human body, so that the urine collecting bag is not beneficial to use in practical nursing. In hospital nursing use, the position of the pressure sensor is often lower than the pubic symphysis position of a human body, namely, the device for collecting the bladder pressure when the human body lies down is positioned below the level of a sickbed of a patient, and at the moment, the pressure generated by urine in a pipeline between the pubic symphysis of the human body and the pressure sensor is cleared and eliminated, so that the accurate monitoring of the bladder pressure and the abdominal pressure is prevented from being influenced by data of the pressure sensor. The patient's gold standard for intra-abdominal pressure measurement recommended by the latest standard of diagnosis and treatment guidelines for abdominal compartment syndrome (version 2013) formulated according to WSACS is patient's cystostatic pressure, i.e., the cystostatic pressure is equal to the abdominal pressure in the case where the detrusor muscle does not act. In order to solve the defect that the pressure sensing part and the pubis of a human body are not in the same horizontal position, the device clears and eliminates the pressure generated by urine in a pipeline between the pubis of the human body and the pressure sensing part by using the calibration part, and the specific steps are as follows: the first step, connecting a series of pipelines such as a human body bladder, a human body catheter, a urinary catheter pipeline, a main body part, a liquid pipeline, a liquid collecting bag and the like to form a human body urine drainage channel; the second step, manually controlling the calibration component, closing the atmosphere communication port, communicating the urine inlet communication port with the urine outlet communication port, manually opening the control valve, controlling the communication between the liquid inlet and the liquid outlet, entering an unblocked mode, draining urine of a patient, and exhausting air in a series of pipelines; and thirdly, placing the upper edge of the calibration part and the pubic symphysis of the patient (or the axillary midline of the patient) on the same horizontal plane for fixation, manually closing the control valve, controlling the interception between the liquid inlet and the liquid outlet, manually controlling the calibration part, closing the urine inlet communication port, communicating the urine outlet communication port with the atmosphere communication port, outputting the pressure data at the moment by the output part of the pressure sensing part, and performing zeroing operation on the data (returning the pressure generated by urine in a pipeline between the pubic symphysis of the human body and the pressure sensing part to zero as zero for measuring the bladder pressure and the abdominal pressure). And after the zeroing operation, reading a digital display part interface connected with the output part, and confirming that the bladder pressure value is zero and zeroing is successful. And step four, manually controlling the calibration component, closing the atmosphere communication port, and communicating the urine inlet communication port with the urine outlet communication port. At this time, the patient is confirmed to be in a lying position, the abdominal muscles are in a relaxed state, and the bladder pressure data measured at the end of expiration of the patient is the bladder static pressure of the patient, namely the abdominal pressure of the patient. The main body part is also provided with a miniature digital display part which is connected with the output part of the pressure sensing part and used for displaying the pressure data monitored by the pressure sensing part in real time, so that the medical staff can record notes conveniently. Of course, the digital display unit may be connected to the output section by wireless or wired connection. The device provides a simple device for controlling urination for medical care work for the electronic urine collection bag consumable with the functions of monitoring bladder pressure and self-controlling urination, not only can self-controlling urination according to pressure, but also can monitor bladder pressure and abdominal pressure in real time, and has the technical effect of simplicity and intelligence under the realistic condition of considering use cost.

One end of the atmosphere communication port is provided with a bacteria blocking film for preventing external microorganisms from entering the catheter and the catheter of the human body through the atmosphere communication port. When the urine outlet communication port is communicated with the atmosphere communication port, external microorganisms can enter the catheter, the liquid pipeline and the urinary catheter which are inserted into the human body, and in order to prevent the infection in the hospital, a breathable bacteria-blocking film is necessary.

The calibration component is electrically controlled and drives the regulating valve to seal the atmosphere communication port, so that the urine inlet communication port is communicated with the urine outlet communication port, or the urine inlet communication port is sealed, and the urine outlet communication port is communicated with the atmosphere communication port. The above-mentioned calibration part can adopt independent miniature three way solenoid valve, utilizes the shift knob control intercommunication that sets up, and is comparatively laborsaving on the connection conversion between atmosphere intercommunication mouth, advance urine intercommunication mouth, go out urine intercommunication mouth, and it is more convenient when adjusting the calibration part, and is equipped with the instruction sign at the calibration part shell, suggestion user correctly adjusts the calibration part.

The device also comprises an external display component which is in wireless connection with the output part of the pressure sensing component and is used for displaying the monitored data and the manually set data. When the bladder pressure and the abdominal pressure need to be transmitted to medical staff, the wireless transmission can transmit the pressure data of the patient to the external display part in real time, and particularly to the mobile data terminal or the mobile communication terminal.

The transmission part is electrically controlled to drive the valve body to displace in the monitoring control cavity so as to control whether the liquid inlet is communicated with the liquid outlet. The handle is positioned at the opposite side of the transmission part and is connected with the transmission part into a whole, and the handle controlled by the fingers of the human body drives the valve body to displace in the monitoring control cavity so as to control whether the liquid inlet is communicated with the liquid outlet; the handle is displaced simultaneously with the transmission portion. Specifically, the transmission part and the handle are respectively positioned at two ends of the valve body, and can be integral injection molding pieces, and the valve body is controlled to rotate in the monitoring control cavity at two ends of the valve body. The outer wall of the valve body is wrapped with a sealing part, and is formed by adopting thermoplastic elastomer (TPE) materials through secondary injection molding, so that the outer wall of the valve body is soft and elastic, and the tightness and the rotating comfort of the valve body can be enhanced when the valve body contacts with the monitoring control cavity; in order to further enhance the tightness of the valve body, the annular bulge of the sealing component changes the contact mode of the outer wall of the valve body and the monitoring control cavity, and the surface contact is changed into linear contact, so that the valve has better external tightness.

The main body part is provided with a self-sealing area for temperature collection and/or liquid sampling, the self-sealing area is positioned between the liquid inlet and the control valve, and the collection needle penetrates through the self-sealing area to enter the monitoring control cavity. The self-sealing area can be restored to the original state by utilizing the elasticity of the self-sealing area after the urine sample can be extracted or the urine temperature can be detected after the self-sealing area is pierced by the collecting needle, so that external pollutants are prevented from entering the monitoring control cavity, and the urine in the monitoring control cavity is prevented from leaking outwards.

The device also comprises a hard coating shell, wherein the coating shell can coat the handle, the transmission part, the output part and the part outside the self-sealing area. Specifically: the cladding housing may cover a portion of the body member, the pressure sensing member, and the control valve, wherein the self-sealing region of the body member is required to be pierced with the collection needle without the cladding; the output part of the pressure sensing part needs to transmit data with an external display part, and does not need to be coated; the handle and the transmission part of the control valve are controlled by hands and electric parts respectively, and do not need to be covered. The shape of a part of the cladding shell shaping device is square, so that part of core components of the device are integrated, and the device which is favorable for collecting bladder pressure is matched and connected with the liquid drainage control system.

The outer surface of the cladding shell is provided with an opening mark and a closing mark which are matched with the handle, and when the handle is displaced to the opening mark, the liquid inlet is communicated with the liquid outlet; when the handle is displaced to the closing mark, the liquid inlet and the liquid outlet are closed. The opening mark and the closing mark of the cladding shell have indication functions, and the auxiliary handle opens or closes the valve body.

The device further comprises an electronic tag for determining the correspondence of the pressure sensing component and defining the time of use of the pressure sensing component. The correspondence means that the pressure sensing component is unique relative to the patient, and the electronic tag stores data information of the pressure sensing component used by the patient. Specifically, the electronic tags are RFID electronic tags which are subjected to encryption processing, each electronic tag is provided with a unique ID number and a data storage space, the electronic tags can store and record the use information of the pressure sensing component so as to prevent the repeated use and the overdue use of the pressure sensing component, and the encryption processing function of the RFID electronic tags can also prevent the use of counterfeit products.

The invention also aims at providing a liquid drainage control system which comprises an electric control unit, a device for collecting the bladder pressure and a shell, wherein the device for collecting the bladder pressure and the electric control unit are accommodated in the shell, the device for collecting the bladder pressure is the device for collecting the bladder pressure, the electric control unit comprises a central controller and an electric component, an adjusting valve is used for controlling the mutual communication among an atmosphere communication port, a urine inlet communication port and a urine outlet communication port, the central controller is used for receiving a pressure signal output by an output part of a pressure sensing component, a zero clearing mode of the central controller is used for eliminating the pressure signal generated by urine in a zero clearing pipeline, and the pressure signal output by the output part of the pressure sensing component is calibrated and received by the central controller to be zero; when the pressure reaches or exceeds a liquid discharge threshold value and the duration time is equal to or longer than a preset judging time, the central controller outputs an instruction for communicating the liquid inlet and the liquid outlet to an electric component, and the electric component drives a transmission part of the control valve to displace, so that the valve body displaces in the monitoring control cavity; when the pressure reaches or exceeds the liquid discharge safety threshold, the central controller outputs an instruction for communicating the liquid inlet and the liquid outlet to the electric component, and the electric component drives the transmission part of the control valve to displace, so that the valve body displaces in the monitoring control cavity.

The output part of the pressure sensing component is connected with a central controller of an electric control unit of the liquid drainage control system through a metal contact piece to convey data, and the electric component of the liquid drainage control system controls the transmission part of the control valve to displace, so that the communication between the liquid inlet and the liquid outlet is controlled, and the function of controlling urination and urination according to the bladder pressure is basically realized. When the device for collecting the bladder pressure leaves the electric control unit of the liquid drainage control system and is in an off-line state, the handle of the control valve is used for driving the valve body to displace and controlling whether the liquid inlet is communicated with the liquid outlet.

When the adjusting valve is used for closing the atmosphere communication port, the urine inlet communication port is communicated with the urine outlet communication port, the valve body is used for controlling the liquid inlet to be communicated with the liquid outlet, and urine enters the liquid collecting bag through the human body catheter, the urinary catheter and the liquid pipeline; the valve body controls the liquid inlet to be communicated with the liquid outlet to be closed, the regulating valve seals the urine inlet communication port, the urine outlet communication port is communicated with the atmosphere communication port, the central controller receives the pressure signal output by the output part of the pressure sensing part, the zero clearing mode of the central controller is selected, the pressure signal generated by urine in the zero clearing pipeline is eliminated, the pressure signal output by the output part of the pressure sensing part is received by the central controller to be zero by calibration, the regulating valve seals the atmosphere communication port, and the urine inlet communication port is communicated with the urine outlet communication port for the second time. The patient's gold standard for intra-abdominal pressure measurement recommended by the latest standard of diagnosis and treatment guidelines for abdominal compartment syndrome (version 2013) formulated according to WSACS is patient's cystostatic pressure, i.e., the cystostatic pressure is equal to the abdominal pressure in the case where the detrusor muscle does not act. However, the situation that the bladder pressure suddenly rises due to body position change, cough and the like is unavoidable, the central controller can delete the suddenly rising value of the bladder static pressure of the patient when recording the bladder static pressure of the patient, give an accurate abdominal pressure measurement curve of the patient, and can also calculate the average value of the bladder static pressure of the patient. The liquid drainage control system adopts a one-key zero clearing mode, the calibration component is positioned at the pubic symphysis level when a human body lies down, and a button of the zero clearing mode is pressed, so that a regulating valve of the calibration component and a valve body of a control valve can be controlled to be orderly opened and closed, the pressure signal generated by urine in a zero clearing pipeline is ensured to be zero, and the accuracy of bladder pressure and abdominal pressure measurement is ensured. On the other hand, the system also orderly controls the human body to urinate according to the pressure of the bladder, and protects the bladder within the safe pressure range.

The calibration component is connected with the central controller, when the liquid outlet is closed, the electric control calibration component closes the urine inlet communication port, the urine outlet communication port is communicated with the atmosphere communication port, and the pressure sensing component received by the central controller monitors the bladder pressure acquired by the part and calibrates to zero. When the calibration part adopts the miniature three-way electromagnetic valve, a connecting line can be buried in the pipe wall of the urethral catheterization pipeline and connected with the central controller through the metal contact piece, when the zero clearing mode is selected, the pressure generated by urine in the zero clearing pipeline between the pubis of the human body and the pressure sensing part is cleared, the central controller can control the opening and closing, namely: the electric component is utilized to control the opening and closing of the control valve, and the central controller is utilized to control the communication of the calibration component, so that the medical staff can clear by one key conveniently.

The shell is provided with an opening and closing part, at least one part of the device for collecting the bladder pressure can be accommodated and installed in the shell by rotating the opening and closing part, and the device for collecting the bladder pressure is installed at the correct position; the opening and closing part is provided with a transparent area, and the relative position relation between the control valve handle and the opening mark and the closing mark is observed. The central controller determines that the device connected to the acquisition of bladder pressure has been installed in the correct position. Under special conditions, the device for collecting the bladder pressure can be not separated from the liquid drainage control system, the opening and closing part on the shell is directly opened, the handle of the control valve is manually rotated, the valve body is driven to rotate in the monitoring control cavity, the liquid inlet is communicated with the liquid outlet, and human urine is discharged.

The driving mechanism of the electric component adopts one of a motor, an electromagnetic valve and an air pump, the electric component is combined with the air bag by the air pump, and the central controller controls the air pump to inflate or deflate the air bag according to the pressure signal output by the output part of the pressure sensing component so as to control the opening or closing of the liquid outlet. Specifically, the air pump is inflated to the air bag so that the air bag applies external force to the valve body to close the liquid outlet; or controlling the air bag to deflate so as to eliminate the action of external force on the valve body and open the liquid outlet.

The system also comprises a weight sensor, wherein the weight sensor is used for monitoring the weight of urine in the liquid collecting bag in real time and outputting a weight signal to the central controller. The weight sensor measures accurately, can be used to the weight of urine in the real-time supervision album liquid bag and output data to central controller, weight sensor one end is connected with central controller data transmission nature, the collection liquid bag is connected to the couple that the other end set up, when album liquid bag urine increases or reduces, weight sensor can be with real-time data transmission to central controller record and store, if album liquid bag urine has been stored fully, when this weight sensor detects album liquid bag urine weight has exceeded its storage value, can transmit data signal to central controller, make it send the warning suggestion of changing album liquid bag.

Based on the scheme, the weight sensor arranged on the device can monitor the weight of urine discharged into the liquid collecting bag in real time and transmit the weight to the central controller, the central controller calculates the rate of urine discharged according to the increase of the urine volume measured instantaneously and draws a urine discharging curve, the rate of urine discharged is the urine flow rate obtained by utilizing the principle of the weight time method, and the urine discharging process is the process of discharging urine after the preset pressure of the device reaches, so that the problem that the measurement accuracy of the weight sensor is influenced by the urine impact liquid collecting bag cannot occur. The weight sensor and the central controller can accurately measure the 24-hour urine volume, the hourly urine volume and the like of the living body, and display whether the living body is in abnormal conditions such as urination, no urine, urination for 1 hour and the like on the display part according to a preset urine volume analysis value.

The system also comprises a display component, an input component and a data storage component; the display component is connected with the central controller and used for displaying the monitored data, the manually set data and the operation result of the central controller; the input component is connected with the central controller and is used for setting parameters and/or inquiring the storage record of the data storage component and the operation result of the central controller; and the data storage component is used for outputting data and inputting data, can store the parameters set by the input component, and the central controller analyzes the generated urine flow rate curve, the urine discharge volume curve, the bladder pressure curve and the abdominal pressure curve, can move and transmit the curves to external equipment, and can transmit the parameters recorded on the external equipment to the central controller. The display part is connected with the central controller and can display the monitored data and the manually set data, and biological information and recorded abnormal information provided by the central controller and the state of the biological bladder obtained according to the signals transmitted by the pressure sensing part; the input part is operatively connected with the central controller and is used for setting and inquiring biological information, the state of the biological bladder, recorded abnormal information and preset parameters; the data storage part is used for outputting data and inputting data, can store biological information collected and processed by the central controller and can be transmitted to the external device in a moving way, and can also transmit information recorded from the external device to the central controller in a moving way. Based on the scheme, the pressure sensing component arranged on the device can monitor the pressure change in the bladder in real time and convert the pressure change into data signals to be transmitted to the central controller, the pressure sensing component can measure various pressure changes in the bladder in the urine storage period and the urine discharge period of the living body, the pressure sensing component can convert the pressure changes into data signals to be transmitted to the central controller, the data signals are compared with a preset normal value range of the living body, a test result of the bladder function of the living body is obtained according to the pressure changes in the bladder in each period, and the pressure sensing component and the central controller can also monitor the residual urine volume in the bladder after the urination is finished, the bladder volume in the initial urine feeling, the contractive force of the detrusor in the urine discharge period and the like.

The beneficial effects are that:

the device for collecting the bladder pressure collects urine pressure signals in the human bladder by the aid of the pressure sensing component, collected data are more accurate, the electronic tag stores relevant data information of the pressure sensing component, the service time of the pressure sensing component is controlled, and data errors of the pressure sensing component caused by human urine pollution are prevented; the device can be detachably connected with the liquid drainage control system, specifically, the device for collecting the bladder pressure is detachably connected with the liquid drainage control system, and urine pressure signals in the bladder of a human body are transmitted to the inside of the liquid drainage control system through the output part, so that the device is convenient for medical staff to install and use.

One end of a valve body of the device for collecting bladder pressure is connected with a handle, a human finger controls the handle to drive the valve body to rotate, the other end of the valve body is connected with a transmission part, and the valve body is driven to rotate by electric power. The structure design is mainly applied to the movement of the position of a human body, the device for collecting the bladder pressure can be detached from the liquid drainage control system, and the manual switch valve body is used for controlling urination, so that the technical problem that the urination cannot be controlled when the human body moves is solved, and the potential safety hazard caused by an electric switch can be eliminated.

The device for collecting the bladder pressure solves the technical problems of bladder pressure and abdominal pressure monitoring accuracy by using the calibration component, clears and eliminates the pressure generated by urine in a clear pipeline between the pubic symphysis of a human body and the pressure sensing component according to the intra-abdominal pressure measurement gold standard established by WSACS, accurately displays the monitored bladder pressure and abdominal pressure, has simple and convenient structural design and production process, and lower manufacturing cost, and provides an intelligent urethral catheterization device with high quality and low cost for vast patients.

Drawings

Fig. 1: the three-dimensional structure of the device for collecting bladder pressure is shown in a schematic diagram 1;

fig. 2: the three-dimensional decomposition structure schematic diagram of the device for collecting the bladder pressure is provided;

fig. 3: the device for acquiring bladder pressure is characterized in that a cut-away structure schematic diagram 1 of a calibration part of the device for acquiring bladder pressure is provided;

fig. 4: the device for acquiring bladder pressure is characterized in that a cut-away structure schematic diagram 2 of a calibration part of the device for acquiring bladder pressure is provided;

fig. 5: the structure of the using state of the device for collecting the bladder pressure is shown in the schematic diagram 1;

fig. 6: the structure of the using state of the device for collecting the bladder pressure is shown in the schematic diagram 2;

fig. 7: the structure of the using state of the device for collecting the bladder pressure is shown in a schematic diagram 3;

fig. 8: the three-dimensional structure of the device for collecting the bladder pressure is shown in the schematic diagram 2;

Fig. 9: the three-dimensional structure schematic diagram of the device calibration part for collecting the bladder pressure is provided;

fig. 10: the liquid drainage control system structure of the invention is schematically shown in figure 1;

fig. 11: the liquid drainage control system structure of the invention is schematically shown in figure 2;

1. a body member; 11. monitoring the control cavity; 12. a liquid inlet; 13. a liquid outlet; 14. a self-sealing region; 15. a cladding shell; 151. opening a mark; 152. closing the mark; 2. a pressure sensing member; 21. a monitoring section; 22. an output section; 23. an electronic tag; 3. a control valve; 31. a handle; 32. a transmission part; 33. a valve body; 34. a sealing member; 341. an annular protrusion; 4. a calibration component; 40. a regulating valve; 41. a urine inlet communication port; 42. a urine outlet communication port; 43. an atmosphere communication port; 44. a bacterial resistance film; 45. a connecting wire; 5. inserting a human body catheter; 50. resetting the pipeline; 51. a urinary catheter; 52. a liquid line; 53. a liquid collecting bag; 54. a flow stop clip; 55. a urination valve; 6. means for collecting bladder pressure; 8. a liquid drainage control system; 91. an electric control unit; 911. a central controller; 9111a, clear mode; 912. an electric component; 913. a weight sensor; 914. a display section; 915. an input member; 916. a data storage section; 92. a housing; 921. an opening and closing portion; 921a. Transparent regions.

Detailed Description

Example 1:

as shown in fig. 1-7, a device 6 for collecting bladder pressure comprises a main body part 1, wherein the main body part 1 is hollow and tubular, is made of medical grade plastic material by injection molding, is internally hollow and is provided with a monitoring control cavity 11 for liquid to pass through, specifically urine of a human body, the upper end of the main body part 1 is provided with a liquid inlet 12 which can be communicated with a urinary catheter 51, and the lower end of the main body part 1 is provided with a liquid outlet 13 which is connected with a liquid collecting bag 53 through a liquid pipeline 52. The main body part 1 can be a section of hollow pipeline or a plurality of sections of hollow pipeline connected together. The liquid collecting bag 53 is made of medical grade polyvinyl chloride film material by heat sealing, the urinary catheter 51 and the liquid pipeline 52 are formed by extrusion of medical grade polyvinyl chloride plastic, the urine discharging valve 55 is arranged at the lower part of the liquid collecting bag 53, and the urine discharging valve 55 has the function of discharging superfluous urine. In order to realize the monitoring of pressure and the control of liquid communication, the device also comprises a control valve 3 and a pressure sensing component 2, wherein the control valve 3 is positioned at the downstream of the pressure sensing component 2 and comprises a valve body 33, a handle 31 and a transmission part 32, the valve body 33 is positioned in the monitoring control cavity 11, one end of the valve body 33 is the handle 31, the other end is the transmission part 32, the valve body 33, the handle 31 and the transmission part 32 are connected together, the valve body 33 is driven to rotate by rotating the handle 31 or the transmission part 32, whether the liquid inlet 12 is communicated with the liquid outlet 13 can be controlled, in order to enhance the external sealing of the valve body 33 when the inside of the monitoring control cavity 11 rotates, a sealing component 34 is sleeved outside the valve body 33, thermoplastic elastomer TPE materials are adopted for secondary injection molding, the outer wall of the valve body 33 is soft and elastic, and the sealing property and rotating comfort of the valve body 33 can be enhanced when the valve body 33 is contacted with the inner wall of the monitoring control cavity 11; in order to further enhance the tightness of the valve body 33, the annular bulge 341 of the sealing component 34 changes the contact mode of the outer wall of the valve body 33 and the monitoring control cavity 11, and the surface contact is changed into linear contact, so that the external tightness is better.

As shown in fig. 2, the pressure sensing component 2 includes a monitoring portion 21 and an output portion 22, where the monitoring portion 21 is located inside the monitoring control chamber 11, specifically, the monitoring portion 21 is a silicon piezoresistive pressure sensor, and the monitoring portion 21 may be directly contacted with the liquid inside the monitoring control chamber 11, or of course, zero-degree glue may be applied on the monitoring portion 21 and then indirectly contacted with the liquid inside the monitoring control chamber 11. The liquid pressure signal in the monitoring control chamber 11 should be monitored when the liquid inlet 12 and the liquid outlet 13 are closed, and typically, the valve body 33 cuts off the monitoring control chamber 11 into an upper chamber and a lower chamber, the monitoring portion 21 of the pressure sensing member 2 located upstream of the control valve 3 senses the liquid pressure in the monitoring control chamber 11 and transmits the liquid pressure to the output portion 22 through an output line, and the output portion 22 is a signal output plate made of metal.

As shown in fig. 3 and 4, the device further comprises a calibration component 4, the calibration component 4 is positioned between the inserted human body catheter 5 and the urinary catheter pipeline 51, and comprises a regulating valve 40, a urine inlet communication port 41, a urine outlet communication port 42 and an atmosphere communication port 43, in particular a three-way valve controlled manually or electrically, a ventilation bacteria blocking film 44 is arranged at one end of the atmosphere communication port 43 to prevent external microorganisms from entering the inserted human body catheter 5, the urinary catheter pipeline 51 and the liquid pipeline 52 through the atmosphere communication port 43, so that the infection in a hospital is prevented, the urine inlet communication port 41 is communicated with the inserted human body catheter 5, the urine outlet communication port 42 is communicated with the urinary catheter pipeline 51, and the atmosphere communication port 43 is communicated with the external atmosphere. A flow stop clip 54 is provided on the catheter 5 inserted into the human body for blocking the discharge of urine at any time.

The device comprises the following specific use steps: the first step, a series of pipelines such as a human bladder, an inserted human catheter 5, a catheterization pipeline 51, a main body part 1, a liquid pipeline 52, a liquid collecting bag 53 and the like are connected to form a human urine drainage channel; the second step, the calibration component 4 is controlled manually, the atmosphere communication port 43 is closed, the urine inlet communication port 41 is communicated with the urine outlet communication port 42, the control valve 3 is opened manually, the communication between the liquid inlet 12 and the liquid outlet 13 is controlled, the unblocked mode is entered, urine of a patient is drained, and the air in the pipeline is discharged; and thirdly, placing the calibration part 4 and the upper edge of the pubic symphysis of the patient (or the axillary midline of the patient) on the same horizontal plane, manually closing the control valve 3, controlling the interruption between the liquid inlet 12 and the liquid outlet 13, manually controlling the calibration part 4, closing the urine inlet communication port 41, communicating the urine outlet communication port 42 with the atmosphere communication port 43, and outputting the pressure data by the output part 22 of the pressure sensing part 2, wherein the data is zeroed (the pressure generated by urine in a pipeline between the pubic symphysis of the human body and the pressure sensing part is zeroed and used as a zero point for measuring the bladder pressure and the abdominal pressure). Medical personnel record, the pressure data who surveys this moment is: the pressure generated by urine in the pipeline between the pubis of the human body and the pressure sensing component is subtracted from the pressure data on the basis of each subsequent measurement, so that accurate bladder pressure and abdominal pressure can be obtained. The main body part 1 is provided with a miniature digital display part which is connected with the output part 22 of the pressure sensing part 2 and is used for displaying the pressure data monitored by the pressure sensing part 2 in real time.

As shown in fig. 1, the device further comprises an external display unit 16, wherein the external display unit 16 is a mobile phone of a medical staff, and is connected with the output part 22 through a WiFi module or a bluetooth module, so as to display monitored data and manually set data. As shown in fig. 8, the calibration member 4 is electrically controlled, specifically, a miniature three-way electromagnetic valve, and electrically controlled to switch the connection among the atmospheric communication port 43, the urine inlet communication port 41, and the urine outlet communication port 42, wherein the regulating valve 40 closes the atmospheric communication port 43 to communicate the urine inlet communication port 41 with the urine outlet communication port 42, or closes the urine inlet communication port 41 to communicate the urine outlet communication port 42 with the atmospheric communication port 43. The transmission part 32 can also be electrically controlled to drive the valve body 33 to displace in the monitoring control cavity 11, so as to control whether the liquid inlet 12 is communicated with the liquid outlet 13. The handle 31 is positioned at the opposite side of the transmission part 32, is connected with the transmission part 32 into a whole, and the handle 31 controlled by the fingers of the human body drives the valve body 33 to displace in the monitoring control cavity 11 to control whether the liquid inlet 12 is communicated with the liquid outlet 13; the handle 31 is displaced simultaneously with the transmission portion 32.

As shown in fig. 1, the main body part 1 is provided with a self-sealing area 14 for temperature collection and/or liquid sampling, the self-sealing area 14 is made of rubber material with self-sealing function, and is specifically arranged on the outer wall of the main body part 1, and a collection needle passes through the self-sealing area 14 to enter the monitoring control cavity 11, so that a liquid sample can be collected or the liquid temperature can be collected. As shown in fig. 2, an electronic tag 23 is connected to the pressure sensing component 2, and the electronic tag 23 can record the first use time of the pressure sensing component 2, and can keep the use time for preventing the overtime use of the pressure sensing component 2. The electronic tag 2 is also provided with an ID identification code, which has the function of identifying the authenticity of the device and can also identify the unique relationship between the device and the patient.

As shown in fig. 2, a hard coating housing 15 is provided outside the device, the coating housing 15 is made of medical grade plastic material, and is divided into a left part and a right part, and the whole device is in a cuboid shape after being buckled relatively, so that the handle 31, the transmission part 32, the output part 22 and the parts except the self-sealing area 14 can be coated. The outer surface of the cladding shell 15 is provided with an opening mark 151 and a closing mark 152 which are matched with the handle 31, in particular to a Chinese character-expressed opening and closing, and can also be in other mark forms, when the handle 31 drives the valve body 33 to rotate in the monitoring control cavity 11, and the handle 31 moves to the opening mark 151, the liquid inlet 12 is communicated with the liquid outlet 13; conversely, when the handle 31 is displaced to the closing mark 152, the liquid inlet 12 is closed in communication with the liquid outlet 13.

Example 2:

as shown in fig. 5 to 10, a liquid drainage control system 8 comprises an electric control unit 91, a device 6 for collecting bladder pressure and a shell 92, wherein the device 6 for collecting bladder pressure and the electric control unit 91 are contained in the shell 92, the electric control unit 91 comprises a central controller 911 and an electric component 912, and a hinge-shaped opening and closing part 921 is arranged on the shell 92. Firstly, opening an opening and closing part 921, installing a device 6 for collecting bladder pressure on a liquid drainage control system 8, specifically, communicating an output part 22 of a pressure sensing component 2 with a central controller 911, movably connecting an electric component 912 with a transmission part 32, receiving a pressure signal output by the output part 22 of the pressure sensing component 2 by the central controller 911, wherein the electric component 912 can control the transmission part 32 to drive a valve body 33 to rotate, and the electric component 912 specifically adopts a stepping motor to apply external force to the valve body 33 to close a liquid outlet 13; or controls the valve body 33 to open the liquid outlet 13. When the opening and closing portion 921 of the housing 92 is closed and the central controller 911 determines that the device 6 for collecting bladder pressure has been mounted to the correct position, the calibration member 4 is electrically controlled, specifically, a micro three-way electromagnetic valve, connected to the central controller 911 via the connection line 45, and the connection switching among the atmospheric communication port 43, the urine inlet communication port 41, and the urine outlet communication port 42 is controlled by the central controller 911, and the atmospheric communication port 43 is closed by the electrically controlled regulator 40 to communicate the urine inlet communication port 41 with the urine outlet communication port 42, or to close the urine inlet communication port 41 to communicate the urine outlet communication port 42 with the atmospheric communication port 43.

As shown in fig. 5, 6 and 7, in order to solve the defect that the pressure sensing component 2 and the pubic symphysis of a human body are not in a horizontal position, the device clears and eliminates the pressure generated by urine in a clear pipeline 50 between the pubic symphysis of the human body and the pressure sensing component 2 by using a calibration component 4, and specifically comprises the following steps: the first step, the patient is in a lying position state, the inserted human body catheter 5 is inserted into the bladder of the human body, the tail end of the inserted human body catheter 5 is connected with the device 6 for collecting bladder pressure, and the specific connection parts are a series of pipelines such as the calibration part 4, the catheterization pipeline 51, the main body part 1, the liquid pipeline 52, the liquid collecting bag 53 and the like in sequence, so as to form a human urine drainage channel; the second step, selecting a clear mode 911a for pressing the liquid drainage control system 8, electrically controlling the calibration component 4, closing the atmosphere communication port 43, communicating the urine inlet communication port 41 with the urine outlet communication port 42, electrically opening the control valve 3, controlling the communication between the liquid inlet 12 and the liquid outlet 13, entering the clear mode, draining the urine of a patient, and exhausting the air in the pipeline; and thirdly, placing the upper edge of the calibration part 4 and the pubic symphysis of the patient (or the axillary midline of the patient) on the same horizontal plane, fixing the upper edge, electrically closing the control valve 3, controlling the interruption between the liquid inlet 12 and the liquid outlet 13, electrically controlling the calibration part 4, closing the urine inlet 41, communicating the urine outlet 42 with the atmosphere communication port 43, outputting the pressure data at the moment by the output part 22 of the pressure sensing part 2, and carrying out zero resetting operation on the data (taking the pressure generated by urine in the zero clearing pipeline 50 between the pubic symphysis of the human body and the pressure sensing part 2 as zero for measuring the bladder pressure and the abdominal pressure). After the zeroing operation, the interface of the display part 914 connected with the output part 22 is read, and the bladder pressure value is confirmed to be zero, so that the zeroing is successful. Fourth, the electrically controlled calibration member 4 closes the atmosphere communication port 43 and communicates the urine inlet communication port 41 with the urine outlet communication port 42. At this time, the patient is confirmed to be in a lying position, the abdominal muscles are in a relaxed state, and the bladder pressure data measured at the end of expiration of the patient is the bladder static pressure of the patient, namely the abdominal pressure of the patient. After the clear mode 911a is found on the fluid diversion control system 8, all of the above operations can be performed with one key.

The monitoring part 21 of the pressure sensing part 2 is utilized to sense the liquid pressure in the monitoring control cavity 11, the pressure signal is transmitted to the central controller 911 through the output part 22, when the pressure signal exceeds the urination threshold value and the duration time is equal to or longer than the preset judging time, the central controller 911 outputs an instruction for communicating the liquid inlet 12 and the liquid outlet 13 to the electric part 912, the electric part 912 drives the transmission part 32 of the control valve 3 to rotate and displace, so that the valve body 33 rotates and displaces in the monitoring control cavity 11, and the liquid inlet 12 and the liquid outlet 13 are communicated; finally, the human body catheter 5 is inserted to convey the human body fluid to the calibration component 4, and the human body fluid enters the urinary catheter 51 through the urine inlet communication port 41 and the urine outlet communication port 42, passes through the liquid inlet 12 of the main body component 1, passes through the valve body 33 in an opened state, enters the liquid pipeline 52 through the liquid outlet 13, and finally enters the liquid collecting bag 53. The urine pressure in the human bladder is monitored by the monitoring part 21, the urination threshold value can be set according to the condition of the patient, and is not more than 4Kpa, optionally 2Kpa, of the pressure threshold value of the human safety bladder, and the judgment time is 10 seconds. In another case, when the liquid pressure inside the monitoring and controlling chamber 11 sensed by the monitoring portion 21 is equal to or greater than the human body safety bladder pressure threshold value 4Kpa, the electric component 912 drives the valve body 33 to generate a rotational displacement inside the monitoring and controlling chamber 11 without detecting the judgment time, and immediately communicates the liquid inlet 12 with the liquid outlet 13, and enters the liquid collecting bag 53. Of course, the above-mentioned human safety bladder pressure threshold value 4Kpa may also be set according to the patient's needs, and preferably a threshold value of less than or equal to 4Kpa is set. When the device 6 for collecting the bladder pressure leaves the liquid drainage control system 8, a medical staff can use the handle 31 of the control valve 3 to open or close the communication between the liquid inlet 12 and the liquid outlet 13, and when the device is opened, body fluid of a human body can smoothly enter the liquid collecting bag 53. The device can effectively regulate and control human urine to discharge according to physiological functions on the one hand, and can prevent nursing risks caused by electrical appliance faults on the other hand.

As shown in fig. 10, the electronic control unit 91 further includes a weight sensor 913, a display part 914, an input part 915, and a data storage part 916, where the weighing range of the weight sensor 913 is 0-3000 g, and the weighing range is five ten thousandths, and the weight sensor 913 is used for monitoring the weight of urine in the liquid collecting bag 53 in real time and outputting data, a hook is arranged on the collecting end of the weight sensor 913, a hanging rope for hooking the liquid collecting bag 53 weighs the weight of urine in the liquid collecting bag 53 in real time, and the output end of the weight sensor 913 is connected with the central controller 911, and the measured data is transmitted to the central controller 911 in real time; the display unit 914 is connected to the central controller 911, and is composed of an OLED color display screen with pixels of 320X240, and can display monitored data and manually set data, as well as biological information and recorded abnormal information provided by the central controller 911, and the state of the biological bladder obtained from the signals transmitted by the pressure sensing unit 2; the input part 915 is operatively connected to the central controller 911 for setting and inquiring the biological information, the status of the biological bladder, the recorded abnormality information, the preset parameters; the data storage unit 916 is constituted by a USB flash disk having a capacity of 2G or more, and is used for data output and data input, and the data storage unit 916 is capable of storing and transferring biological information collected and processed by the central controller 911 to an external device, and the data storage unit 916 is also capable of transferring information recorded from the external device to the central controller 911. The liquid drainage control system can be powered by a No. 7 battery or a fixed power supply, and the components are assembled into a whole by the shell 92.

As shown in fig. 11, the opening and closing portion 921 of the housing 92 is provided with a transparent area 921a, and the relative positional relationship between the handle 31 of the control valve 3, the opening mark 151, and the closing mark 152 is observed through the transparent area 921 a. When the liquid discharge is required to be manually opened, the opening and closing part 921 of the shell 92 is opened, the human finger controls the rotary displacement of the handle 31, so that the valve body 33 is enabled to rotate and displace in the monitoring control cavity 11, the liquid inlet 12 is communicated with the liquid outlet 13, and the human body fluid finally flows into the liquid collecting bag 53.

Claims

1. An apparatus for collecting bladder pressure, comprising:

the body part (1), the body part (1) includes the monitoring control cavity (11) with internal cavity, monitor one end of the control cavity (11) has liquid inlet (12), the upper end of the liquid inlet (12) communicates the catheterization pipeline (51), monitor another end of the control cavity (11) has liquid outlet (13), the liquid outlet (13) is linked together with liquid collecting bag (53) through the liquid pipeline (52); a pressure sensing component (2), wherein the pressure sensing component (2) comprises a monitoring part (21) and an output part (22), the monitoring part (21) is positioned inside the monitoring control cavity (11), and the monitoring part (21) can sense the pressure generated by the liquid inside the monitoring control cavity (11) and output a pressure signal through the output part (22); a control valve (3), wherein the control valve (3) is positioned between the pressure sensing component (2) and the liquid outlet (13) and comprises a valve body (33), a handle (31) and a transmission part (32), and the valve body (33) is positioned inside the monitoring control cavity (11) and is used for controlling whether the liquid inlet (12) is communicated with the liquid outlet (13); the urine collecting device is characterized by further comprising a calibration component (4), wherein the calibration component (4) is positioned between an inserted human body catheter (5) and a urinary catheter (51), the urine collecting device comprises a regulating valve (40), a urine inlet communication port (41), a urine outlet communication port (42) and an atmosphere communication port (43), the urine inlet communication port (41) is communicated with the inserted human body catheter (5), the urine outlet communication port (42) is communicated with the urinary catheter (51), the atmosphere communication port (43) is communicated with the outside atmosphere, the regulating valve (40) is used for sealing the atmosphere communication port (43), the urine inlet communication port (41) is communicated with the urine outlet communication port (42) to form a human body urine drainage channel, the urine in the body is drained through the urine of a patient, the upper edge of the calibration component (4) and the pubic bone of the patient are placed on the same horizontal plane to be fixed, a control valve (3) is closed, a liquid inlet (12) and a liquid outlet (13) are controlled to be cut off, the regulating valve (40) is controlled, the urine inlet communication port (42) is sealed, the urine outlet communication port (42) is communicated with the atmosphere communication port (43) is communicated with the outside atmosphere, and the pressure between the calibration component (4) and the pubic bone of the human body is eliminated by using the pressure of the human body (2).

2. The device for collecting the bladder pressure according to claim 1, wherein one end of the atmosphere communication port (43) is provided with a bacteria-blocking film (44) for preventing external microorganisms from entering the catheter (5) and the catheter (51) inserted into the human body through the atmosphere communication port (43).

3. The device for collecting bladder pressure according to claim 1, wherein the calibration member (4) is electrically controlled to drive the regulating valve (40) to close the atmosphere communication port (43), to communicate the urine inlet communication port (41) with the urine outlet communication port (42), or to close the urine inlet communication port (41), and to communicate the urine outlet communication port (42) with the atmosphere communication port (43).

4. The device for acquiring bladder pressure according to claim 1, further comprising an extracorporeal display means (16), the extracorporeal display means (16) being in wireless connection with the output portion (22) of the pressure sensing means (2) for displaying the monitored data and the manually set data.

5. The device for collecting the bladder pressure according to claim 1, wherein the transmission part (32) is electrically controlled to drive the valve body (33) to displace in the monitoring control cavity (11) so as to control whether the liquid inlet (12) is communicated with the liquid outlet (13).

6. The device for collecting bladder pressure according to claim 5, wherein the handle (31) is located at the opposite side of the transmission part (32), and is connected with the transmission part (32) into a whole, the handle (31) controlled by a human finger drives the valve body (33) to displace in the monitoring control cavity (11), and controls whether the liquid inlet (12) is communicated with the liquid outlet (13); the handle (31) is displaced simultaneously with the transmission part (32).

7. Device for taking bladder pressure according to any of claims 1-6, characterized in that the body member (1) is provided with a self-sealing area (14) for temperature and/or liquid sampling, which self-sealing area (14) is located between the liquid inlet (12) and the control valve (3), and the taking needle penetrates the self-sealing area (14) into the monitoring control chamber (11).

8. The device for collecting bladder pressure according to claim 7, further comprising a rigid covering housing (15), said covering housing (15) being capable of covering said handle (31), transmission portion (32), output portion (22), portions other than the self-sealing area (14).

9. The device for collecting bladder pressure according to claim 8, wherein the outer surface of the covering housing (15) is provided with an opening mark (151) and a closing mark (152) which are matched with the handle (31), and when the handle (31) is displaced to the opening mark (151), the liquid inlet (12) is communicated with the liquid outlet (13); when the handle (31) is displaced to the closing mark (152), the liquid inlet (12) is closed in communication with the liquid outlet (13).

10. The device for acquiring bladder pressure according to claim 1, further comprising an electronic tag (23), the electronic tag (23) being adapted to determine the correspondence of the pressure sensing member (2) and to define the time of use of the pressure sensing member (2).

11. A liquid drainage control system comprising an electric control unit (91), a device (6) for collecting bladder pressure and a shell (92), wherein the device (6) for collecting bladder pressure and the electric control unit (91) are contained in the shell (92), and the liquid drainage control system is characterized in that the device (6) for collecting bladder pressure is the device (6) for collecting bladder pressure according to any one of claims 1-10, the electric control unit (91) comprises a central controller (911) and an electric component (912), a regulating valve (40) controls the mutual communication among an atmospheric communication port (43), a urine inlet communication port (41) and a urine outlet communication port (42), when the regulating valve (40) closes the atmospheric communication port (43), the urine inlet communication port (41) is communicated with the urine outlet communication port (42) to form a human urine drainage passage, air in a urine drainage pipeline is drained through the urine of a patient, a calibration component (4) and the upper edge of the pubic bone of the patient are placed on the same level, a control valve (3) is closed, a control liquid inlet (12) is cut off from the liquid outlet (13), the regulating valve (40) is controlled to control the mutual communication among the atmospheric communication port (43) and the urine inlet communication port (41) and the urine outlet communication port (42) is communicated with the central sensor (2) when the regulating valve (40) is closed, a zero clearing mode (911 a) of the central controller (911) eliminates a pressure signal generated by urine in the zero clearing pipeline (50), and the pressure signal output by an output part (22) of the pressure sensing component (2) received by the central controller (911) is calibrated to be zero; when the pressure reaches or exceeds a liquid discharge threshold value and the duration time is equal to or longer than a preset judging time, the central controller (911) outputs an instruction for communicating the liquid inlet (12) and the liquid outlet (13) to the electric component (912), and the electric component (912) drives the transmission part (32) of the control valve (3) to displace, so that the valve body (33) displaces in the monitoring control cavity (11); when the pressure reaches or exceeds the liquid discharge safety threshold, the central controller (911) outputs an instruction for communicating the liquid inlet (12) and the liquid outlet (13) to the electric component (912), and the electric component (912) drives the transmission part (32) of the control valve (3) to displace, so that the valve body (33) displaces in the monitoring control cavity (11).

12. The fluid drainage control system of claim 11, wherein the calibration unit (4) is connected to the central controller (911), and when the fluid outlet (13) is closed, the electrically controlled calibration unit (4) closes the urine inlet port (41), the urine outlet port (42) communicates with the atmospheric port (43), and the pressure sensing unit (2) received by the central controller (911) monitors the bladder pressure collected by the portion (21) and calibrates to zero.

13. The fluid drainage control system of claim 11, wherein the housing (92) is provided with an opening and closing part (921), and at least a part of the device (6) for collecting bladder pressure is accommodated and mounted inside the housing (92) by rotating the opening and closing part (921), and the device (6) for collecting bladder pressure is mounted in a correct position; the opening and closing part (921) is provided with a transparent area (921 a), and the relative position relation between the handle (31) of the control valve (3) and the opening mark (151) and the closing mark (152) is observed.

14. The liquid drainage control system according to claim 11, wherein the driving mechanism of the electric component (912) adopts one of a motor, a solenoid valve and an air pump, the electric component (912) is combined with the air bag by the air pump, and the central controller (911) controls the air pump to inflate or deflate the air bag according to the pressure signal output by the output part (22) of the pressure sensing component (2) so as to control the opening or closing of the liquid outlet (13).

15. The fluid drainage control system of claim 11, further comprising a weight sensor (913), a display component (914), an input component (915), a data storage component (916); the weight sensor (913) is used for monitoring the weight of urine in the liquid collecting bag (53) in real time and outputting a weight signal to the central controller (911); the display component (914) is connected with the central controller (911) and is used for displaying the monitored data, the manually set data and the operation result of the central controller (911); an input unit (915) connected to the central controller (911) for setting parameters and/or querying the stored record of the data storage unit (916) and the result of the operation of the central controller (911); and a data storage unit (916) for outputting data and inputting data, the data storage unit (916) being capable of storing parameters set by the input unit (915), and the central controller (911) analyzing the generated urine flow rate curve, urine output curve, bladder pressure curve, abdominal pressure curve, and being capable of moving and transmitting the curves to an external device, and being capable of transmitting parameters entered on the external device to the central controller (911).