CN215605686U

CN215605686U - Indirect bladder pressure monitoring system for pressure in abdominal cavity

Info

Publication number: CN215605686U
Application number: CN202122178155.2U
Authority: CN
Inventors: 李世伟; 符基定; 高春辉
Original assignee: Cancer Center of Guangzhou Medical University
Current assignee: Cancer Center of Guangzhou Medical University
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-01-25
Anticipated expiration: 2031-09-09

Abstract

The utility model belongs to the technical field of intra-abdominal pressure monitoring, and relates to an indirect bladder pressure monitoring system for intra-abdominal pressure, which comprises a catheter, a urine bag, a three-way switch valve and a water column pipe, wherein the catheter is provided with an insertion end and a connection end, and the three-way switch valve is respectively communicated with the connection end of the catheter, the urine bag and the water column pipe through respective pipelines; the injection syringe is arranged on the bracket and positioned above the water column pipe, one end of the injection syringe is connected with the liquid storage tank through the constant delivery pump, and the other end of the injection syringe is connected with the water column pipe through a hose; and the water column pipe is provided with an ultrasonic liquid level instrument and an air valve, and the ultrasonic liquid level instrument is electrically connected with the monitoring instrument. The utility model can solve the problems of poor repeatability of measurement results, inconvenience for dynamic monitoring and poor safety of the existing cystometrography in practical application.

Description

Indirect bladder pressure monitoring system for pressure in abdominal cavity

Technical Field

The utility model belongs to the technical field of pressure monitoring in abdominal cavity, and particularly relates to an indirect bladder pressure monitoring system for pressure in abdominal cavity.

Background

The pressure in the abdominal cavity of a critical patient is increased clinically due to various reasons, the incidence rate and the fatality rate of the abdominal cavity clearance syndrome are extremely high, one of the main basis of diagnosis is the increase of the pressure in the abdominal cavity, so that the monitoring of the pressure in the abdominal cavity of the critical patient is very important, and the early detection of the high pressure in the abdominal cavity and the early diagnosis of the abdominal cavity clearance syndrome are facilitated. To reduce trauma, clinical measurements of intra-abdominal pressure have typically taken indirect methods, such as measuring intravesical, intragastric, intrarectal or intravenous pressures to reflect intra-abdominal pressures, whereas transurethral intra-vesical pressure measurements are considered the golden standard for intra-abdominal pressure measurements, which are based on the principle that when the bladder capacity is less than 100ml, the bladder is only a passive reservoir, with high compliance, like a passive diaphragm, and can transmit intra-abdominal pressure without any additional pressure from its own muscles. The existing cystometrography technology is to connect a pressure measuring pipeline with a patient indwelling catheter, inject a proper amount of normal saline into an evacuated bladder through the catheter, take the pubis joint level as a calibration point in the horizontal position, and directly measure the height of a high-yield column at the end of expiration of the patient. However, in practical applications of the existing cystometrography technology, the influence of human factors is large when result data is obtained, so that the correlation between continuous measurement results of the same operator or different operators is poor, the repeatability of the measurement results is poor, and the reliability of data clinical application cannot be guaranteed; meanwhile, although the device in the prior art is simple, corresponding pipeline connection needs to be repeated every time when repeated monitoring is carried out, the operation is complicated, time and labor are wasted, infection is easily caused due to multiple operation links and the open state of a urine drainage loop, and the infection risk of critically ill patients with generally low immunity is increased.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides an indirect bladder pressure monitoring system for intra-abdominal pressure, which aims to solve the problems of poor repeatability of measurement results, inconvenience for dynamic monitoring and poor safety of the existing bladder pressure measurement technology in practical applications.

In order to achieve the purpose, the utility model provides an indirect bladder pressure monitoring system for intra-abdominal pressure, which comprises a catheter, a urine bag, a three-way switch valve and a water column pipe, wherein the catheter is provided with an insertion end and a connection end, and the three-way switch valve is respectively communicated with the connection end of the catheter, the urine bag and the water column pipe through respective pipelines; the injection syringe is arranged on the bracket and positioned above the water column pipe, one end of the injection syringe is connected with the liquid storage tank through the constant delivery pump, and the other end of the injection syringe is connected with the water column pipe through a hose; and the water column pipe is provided with an ultrasonic liquid level instrument and an air valve, and the ultrasonic liquid level instrument is electrically connected with the monitoring instrument. By adopting the scheme, the monitoring system can reflect the liquid height of the bladder of the patient in the water column pipe after the specified amount of sterile normal saline is injected into the bladder of the patient in real time through the ultrasonic liquid level instrument and the monitoring instrument, so that visual data can be formed on the monitoring instrument to feed back the bladder pressure of the patient, and the intra-abdominal pressure is indirectly fed back.

Furthermore, the three-way switch valve and the air valve adopt electric valves and are electrically connected with the monitor. The monitor can electrically control the monitor and the monitor, and the work of operators is simplified.

Further, still include rotating electrical machines, gear, rack and base, rotating electrical machines installs on the frame, and the base is sliding connection on the frame is vertical, and the rack is installed on the base and with set up the gear engagement transmission on the rotating electrical machines output shaft. Vertical lift through the base drives the up-and-down motion of water column pipe, can make the liquid bottom surface of water column pipe select the horizontal position of patient and use the horizontal plane of pubic symphysis or the horizontal plane that the horizontal position axillary midline of patient horizontal position and the nodical point of ilium are located as school zero point to guarantee the variety of effective data monitoring collection.

Further, the rotating motor is a servo motor. The control precision is high, and the control is convenient.

Further, the rotating electrical machines are electrically connected with the monitor. So as to realize the electric control operation of the monitor.

Further, still including setting up on the frame and with monitor electric connection's vision sensor. So as to obtain the lying posture and the end-expiratory abdominal state of the patient.

Further, the vision sensor employs a CCD camera. The monitoring device has the characteristic of good monitoring effect.

The utility model has the beneficial effects that: the monitoring system can reflect the liquid height of the bladder of the patient in the water column tube after the specified amount of sterile normal saline is injected into the bladder in real time through the ultrasonic liquid level instrument and the monitoring instrument, so that visual data can be formed on the monitoring instrument to feed back the bladder pressure of the patient, and the pressure in the abdominal cavity is indirectly fed back; the vertical lifting of the base can drive the water column pipe to move up and down, so that the horizontal position of the patient at the liquid bottom surface of the water column pipe is selected, and the pubis joint horizontal plane or the horizontal plane where the intersection point of the axillary midline of the horizontal position of the patient and the ilium is located is used as a calibration point, so that the diversity of effective data monitoring and acquisition is ensured; and the injection of sterile physiological saline is ensured to be accurate and convenient through the quantitative pump, and the working strength of an operator is reduced.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

For the purposes of promoting a better understanding of the objects, aspects and advantages of the utility model, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic structural view of the indirect bladder pressure monitoring system for intra-abdominal pressure;

reference numerals: the device comprises a catheter 1, an insertion end 2, a connecting end 3, a three-way switch valve 4, a urine bag 5, a pipeline 6, a base 7, a water column pipe 8, an air valve 9, an ultrasonic level meter 10, a hose 11, a support 12, an injection pipe 13, a monitor 14, a constant delivery pump 15, a liquid storage tank 16, a frame 17, a rotating motor 18, a gear 19, a rack 20 and a vision sensor 21.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the utility model only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the utility model thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

As shown in fig. 1, the indirect bladder pressure monitoring system for intra-abdominal pressure mentioned in this embodiment includes a urinary catheter 1, a urinary bag 5, a three-way switch valve 4, a water column tube 8, a frame 17, a liquid storage tank 16 disposed on the frame 17, a dosing pump 15, a support 12, an injection tube 13, and a monitor 14, wherein: the catheter 1 is provided with an insertion end 2 and a connection end 3, the insertion end 2 extends into the bladder of a patient, the three-way switch valve 4 is respectively communicated with the connection end 3 of the catheter 1, the urine bag 5 and the water column tube 8 through respective pipelines 6, and the three-way switch valve 4 can ensure that the catheter 1 is communicated with the urine bag 5, or the catheter 1 is communicated with the water column tube 8, or the water column tube 8 is communicated with the urine bag 5; the frame 17 is used as a carrier and is convenient to move; the water column tube 8 is arranged on the frame 17, the injection tube 13 is arranged on the bracket 12 and is positioned above the water column tube 8, one end of the injection tube 13 is connected with the liquid storage tank 16 through the constant delivery pump 15, the other end of the injection tube is connected with the water column tube 8 through the hose 11, the liquid storage tank 16 is used for storing clean sterile normal saline, the sterile normal saline stored in the liquid storage tank 16 can be conveyed to the injection tube 13 by utilizing the constant delivery pump 15, and then the sterile normal saline is input to the bladder of a patient through the water column tube 8; the ultrasonic liquid level instrument 10 and the air valve 9 are arranged on the water column pipe 8, the ultrasonic liquid level instrument 10 is electrically connected with the monitor 14, the ultrasonic liquid level instrument 10 is used for measuring the rising height of the liquid level in the water column pipe 8, the precision is high, people do not need to observe and read books by eyes, the air valve 9 can ensure that sterile physiological saline can be smoothly injected into the bladder in a closed state, and the liquid level in the water column pipe 8 can fluctuate in an open state, so that the measurement is facilitated; and the three-way switch valve 4 and the air valve 9 adopt electric valves and are electrically connected with the monitor 14, so that the operation and the control are convenient. Therefore, the monitoring system can reflect the liquid height of the bladder of the patient in the water column pipe after the specified amount of sterile normal saline is injected into the bladder of the patient in real time through the ultrasonic liquid level instrument and the monitoring instrument, so that visual data can be formed on the monitoring instrument to feed back the bladder pressure of the patient, and the pressure in the abdominal cavity is indirectly fed back; and the injection of sterile physiological saline is ensured to be accurate and convenient through the quantitative pump, and the working strength of an operator is reduced.

The monitoring system in the embodiment further comprises a rotating motor 18, a gear 19, a rack 20 and a base 7, wherein the rotating motor 18 is installed on the frame 17, the base 7 is connected with the frame 17 in a sliding mode in the vertical direction, and the rack 20 is installed on the base 7 and is in meshing transmission with the gear 19 arranged on an output shaft of the rotating motor 18; the rotating motor 18 is a servo motor and is electrically connected to the monitor 14. Like this, can drive the up-and-down motion of water column pipe through the vertical lift of base, can make the liquid bottom surface of water column pipe select the horizontal position of patient to use the horizontal plane of pubis joint horizontal plane or the horizontal plane that the horizontal position axillary midline of patient horizontal position and the crossing point of ilium locate as the school zero point to guarantee the variety that effective data monitoring gathered.

The monitoring system in this embodiment further includes a vision sensor 21 disposed on the frame 17 and electrically connected to the monitor 14, and the vision sensor 21 is a CCD camera. Therefore, the lying posture and the end-expiratory abdominal state of the patient can be obtained through the visual sensor, fed back to the monitoring instrument and matched with the ultrasonic liquid level instrument to realize liquid level monitoring in the water column pipe; in addition, the bottom surface of the water column pipe can be calibrated through the visual sensor so as to adapt to different patients.

The working principle of the monitoring system is specifically explained as follows: firstly, a patient is in a horizontal position, the insertion end 2 of the catheter 1 is inserted into the bladder of the patient, the three-way switch valve 4 is adjusted to communicate the catheter 1 with the urine bag 5, and the urine of the patient is drained into the urine bag 5 to empty the bladder; then, adjusting the calibration zero position of the water column pipe 8 by the vertical lifting of the base 7; then, adjusting the three-way switch valve 4 to communicate the catheter 1 with the water column tube 8, closing the air valve 9 on the water column tube 8, and starting the constant delivery pump 15 to inject 25-100 ml (the optimal injection amount is 50ml) of sterile normal saline into the bladder through the injection tube 13 and the water column tube 8; then, the constant delivery pump 15 is closed, the air valve 9 is opened, so that the water column tube 8 starts to work, the ultrasonic liquid level meter 10 and the visual sensor 21 are matched to monitor the liquid level height in the water column tube 8 at the end of expiration of the patient and feed the liquid level height back to the monitor 14, the waveform and the numerical value of the pressure in the bladder are displayed by the monitor, and the monitoring of the abdominal cavity pressure is realized by observing the waveform of the pressure in the bladder displayed by the monitor; after the primary monitoring is finished, the three-way switch valve 4 is opened, the normal saline in the bladder and the water column pipe is emptied in sequence, and after the quantitative pump is started to wash the water column pipe, the monitoring is carried out again after the next 4-6 hours.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims

1. The indirect bladder pressure monitoring system for the pressure in the abdominal cavity comprises a catheter (1), a urine bag (5), a three-way switch valve (4) and a water column pipe (8), wherein the catheter is provided with an insertion end (2) and a connection end (3), and is characterized in that the three-way switch valve is respectively communicated with the connection end of the catheter, the urine bag and the water column pipe through respective pipelines (6); the device is characterized by further comprising a frame (17), a liquid storage tank (16), a constant delivery pump (15), a support (12), an injection pipe (13) and a monitor (14), wherein the liquid storage tank, the constant delivery pump (15), the support (12), the injection pipe and the monitor (14) are arranged on the frame, the water column pipe is arranged on the frame, the injection pipe is arranged on the support and positioned above the water column pipe, one end of the injection pipe is connected with the liquid storage tank through the constant delivery pump, and the other end of the injection pipe is connected with the water column pipe through a hose (11); and the water column pipe is provided with an ultrasonic liquid level instrument (10) and an air valve (9), and the ultrasonic liquid level instrument is electrically connected with the monitoring instrument.

2. The indirect bladder pressure monitoring system according to claim 1, wherein the three-way valve and the air valve are electrically operated valves and are electrically connected to a monitor.

3. The indirect bladder pressure monitoring system of intra-abdominal pressure according to claim 1, further comprising a rotating motor (18) mounted on the frame, a gear (19), a rack (20) vertically slidably connected to the frame, and a base (7) mounted on the base and in meshed transmission with the gear provided on the output shaft of the rotating motor.

4. The indirect bladder pressure monitoring system for pressure within the abdominal cavity of claim 3, wherein the rotating motor is a servo motor.

5. The indirect bladder pressure monitoring system according to claim 4, wherein the rotating electrical machine is electrically connected to a monitor.

6. The indirect bladder pressure monitoring system for intra-abdominal pressure according to any of claims 1-5, further comprising a visual sensor (21) disposed on the frame and electrically connected to the monitor.

7. The indirect bladder pressure monitoring system of claim 6 wherein the visual sensor employs a CCD camera.