CN220025054U - Bladder pressure measuring device - Google Patents

Abstract

The utility model belongs to the technical field of medical appliances, and particularly relates to a bladder pressure measuring device. The utility model provides a bladder pressure measuring device which comprises a guide pipe, a drainage bag and a guide pipe for enabling the guide pipe to be communicated with the drainage bag, wherein a flow stopping clamp is arranged on the guide pipe, a first pipe fitting is arranged on the drainage bag, a flow guiding branch pipe is arranged at the tail end of the guide pipe and is communicated with the first pipe fitting, the bladder pressure measuring device further comprises a pressure measuring device, the pressure measuring device comprises a second pipe fitting, a power supply, a circuit board, a pressure sensor and a display screen, the first pipe fitting is connected with the second pipe fitting in a socket joint mode, a diaphragm is arranged between the first pipe fitting and the second pipe fitting, the pressure sensor is arranged in a sealing space formed by the diaphragm and the second pipe fitting, the pressure sensor, the display screen and the pressure sensor are respectively and electrically connected with the circuit board, the circuit board is electrically connected to the power supply, and the pressure sensor inputs collected pressure to the circuit board and displays a pressure value through the display screen.

Description

Bladder pressure measuring device

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to a bladder pressure measuring device.

Background

The bladder is an oblate organ in the human body, located in the pelvis, and has the main function of storing and draining urine. When the bladder is full of urine, the bladder wall will be distended and gradually stretched, at which time the person will feel urine. When urine needs to be discharged, the sphincter at the bottom of the bladder automatically contracts, so that the urine is discharged out of the body through the urethra.

Cystometry is a medical examination method for measuring the pressure inside the bladder. The examination method is generally used for diagnosing and evaluating the cause of lower urinary tract symptoms and bladder dysfunction.

In performing cystometry, the physician first empties the patient into the bladder and inserts an elongated catheter into the bladder until the distal end of the catheter enters the interior of the bladder. The physician then infuses saline into the bladder through the catheter while using a pressure sensor to measure changes in pressure within the bladder. This allows the highest, lowest and average pressure of the bladder to be accurately measured.

Cystometry is commonly used to examine the functional status of the bladder, such as the cause of lower urinary tract symptoms such as dysuria, frequent urination, urgency, etc., and to assess the contractility of the bladder muscle and the extent of bladder emptying. In addition, cystometry can also be used to assess conditions such as artificial urethral sphincter relaxations, neurogenic bladder, bladder outlet obstruction, and the like.

However, most of the bladder pressure measuring devices in the prior art adopt a liquid pressure meter to measure pressure, such as the bladder pressure measuring device disclosed in the chinese patent document ZL201921877822.2, and the bladder pressure measuring device has a large volume, a complicated operation and a risk of polluting the pressure measuring device.

Accordingly, the prior art is subject to improvement and development.

Disclosure of Invention

The utility model aims to provide a bladder pressure measuring device which has the characteristics of small volume, simple operation and no pollution to equipment.

In order to solve the technical problems, the bladder pressure measuring device comprises a guide pipe, a drainage bag and a guide pipe which enables the guide pipe to be communicated with the drainage bag, wherein a flow stopping clamp is arranged on the guide pipe, the drainage bag is provided with a first pipe fitting, the tail end of the guide pipe is provided with a flow guiding branch pipe, the flow guiding branch pipe is communicated to the first pipe fitting, the bladder pressure measuring device further comprises a pressure measuring device, the bladder pressure measuring device comprises a second pipe fitting, a power supply, a circuit board, a pressure sensor and a display screen, a diaphragm is arranged between the first pipe fitting and the second pipe fitting, the pressure sensor is arranged in a sealing space formed by the diaphragm and the second pipe fitting, the pressure sensor, the display screen and the pressure sensor are respectively and electrically connected with the circuit board, the circuit board is electrically connected to the power supply, and the pressure sensor inputs collected pressure to the circuit board and displays a pressure value through the display screen.

Further, the first pipe fitting is of an upper end and lower end opening structure.

Further, the second pipe fitting is of a structure with an upper end closed and a lower end opened.

Further, the first pipe fitting is provided with a receiving portion, the second pipe fitting is provided with a plug-in portion, and the receiving portion of the first pipe fitting is in socket connection with the plug-in portion of the second pipe fitting.

Further, the plug-in connection part is an annular tooth, and the receiving part is an annular clamping groove.

Further, the diaphragm is disposed above the first tube.

Further, the edge of the diaphragm is fixedly connected with the edge above the first pipe fitting.

Further, the diaphragm is made of any one of fluororubber, polytetrafluoroethylene, butyl rubber, neoprene and ethylene propylene rubber.

Further, the pressure sensor is a barometer.

Further, a one-way valve is arranged below the diversion branch pipe.

Therefore, the bladder pressure measuring device has small volume and simple and convenient operation, the pressure measuring process is not in direct contact with drainage liquid, and a new drainage bag can be directly replaced after the pressure measuring device measures the pressure, so that the pressure measuring device cannot be polluted.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

FIG. 2 is a schematic diagram of the separated structure of the present utility model.

Fig. 3 is a schematic structural view of the first pipe fitting and the second pipe fitting of the present utility model after separation.

Fig. 4 is a schematic structural diagram of the first pipe fitting and the second pipe fitting of the present utility model after being combined.

FIG. 5 is a schematic view of the structure of the utility model in measuring pressure.

Description of the reference numerals: 1-conduit, 2-honeycomb duct, 21-diversion branch pipe, 3-drainage bag, 31-first pipe fitting, 311-adapting part, 312-diaphragm, 32-liquid storage cavity, 33-liquid discharge valve, 4-pressure measuring device, 41-second pipe fitting, 411-inserting part, 42-pressure sensor, 43-display screen, 44-power supply, 45-circuit board, 5-check valve, 6-stop clip.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Fig. 1 shows a schematic structure of a bladder pressure measuring device 4 according to the utility model, wherein the bladder pressure measuring device 4 comprises a catheter 1, a drainage bag 3 and a flow guide tube 2 which connects the catheter 1 and the drainage bag 3, and a flow stop clip 6 is arranged on the catheter 1, wherein the drainage bag 3 is a medical bag-shaped instrument and is usually made of flexible and durable plastic or rubber materials. Its main function is to collect and drain secretions such as body fluids or blood, preventing these fluids from accumulating inside the human body and causing infection or other hazards. In cystometry, the drainage bag 3 is used to collect urine and to flush the bladder with saline. The drainage bag 3 is a disposable product, and after the use, the bladder pressure measuring device 4 needs to be recycled as medical waste, so that the bladder pressure measuring device 4 adopts a separated design, and in the use process, the pressure measuring device 4 is combined with the drainage bag 3, and the drainage bag 3 is separated and discarded after the use is finished. The drainage bag 3 is provided with a liquid storage chamber 32 for storing drainage liquid, and a drain valve 33 for discharging the drainage liquid.

In order to enable the detachable connection of the pressure measuring device 4 to the drainage bag 3, in this embodiment the pressure measuring device 4 is combined with or separated from the drainage bag 3 by means of a socket connection. Fig. 2 is a schematic view of the pressure measuring device 4 separated from the drainage bag 3. The drainage bag 3 is provided with first pipe fitting 31, and first pipe fitting 31 is upper and lower open-ended rigid plastic part, and the top of first pipe fitting 31 is provided with the portion of accepting 311, and portion of accepting 311 is the annular draw-in groove, and corresponding, the middle part of pressure measurement device 4 is provided with second pipe fitting 41, and second pipe fitting 41 is upper end closed lower open-ended rigid plastic part, and the below of second pipe fitting 41 is provided with grafting portion 411, and grafting portion 411 is the annular tooth with accepting portion 311 looks adaptation. When the pressure measuring device 4 needs to be combined and connected with the drainage bag 3, the pressure measuring device 4 and the drainage bag 3 are oppositely applied with force so that the annular teeth of the plug-in part 411 are inserted into the annular clamping groove of the receiving part 311, as shown in fig. 4; when the pressure measuring device 4 needs to be separated from the drainage bag 3, the pressure measuring device 4 and the drainage bag 3 are forced to face each other, so that the annular teeth of the plug-in part 411 are pulled out from the annular clamping groove of the receiving part 311, as shown in fig. 3.

If the liquid of the drainage bag 3 is in direct contact with the pressure measuring device 4, the pressure measuring device 4 may be contaminated or eroded, and in order to prevent the above phenomenon, in this embodiment, the pressure measuring device 4 measures the bladder pressure of the patient by means of indirect pressure measurement. Specifically, a diaphragm 312 is disposed between the first pipe member 31 and the second pipe member 41, and a pressure sensor 42 having a pressure measuring function in the pressure measuring device 4 is placed in a sealed space enclosed by the second pipe member 41 and the diaphragm 312, so that the diaphragm 312 is deformed by only generating a pressure difference in the fluid under the second pipe member 41, and further, the pressure in the sealed space where the pressure sensor 42 is disposed is changed, and the pressure sensor 42 measures the pressure change value to measure the pressure of the bladder.

The first kind of the diaphragm 312 is disposed on the plugging portion 411, the second kind of the diaphragm 312 is disposed on the receiving portion 311, the third kind of the diaphragm 312 is disposed between the plugging portion 411 and the receiving portion 311, and the diaphragm 312 is stained with drainage liquid, so that the diaphragm 312 needs to be replaced after each measurement, and the diaphragm 312 needs to be removed from the plugging portion 411. And the diaphragm 312 is directly discarded along with the drainage bag 3 after being stained with drainage liquid, so that the bladder pressure measuring device 4 is simpler and more convenient.

The diaphragm 312 is made of soft and elastic materials, such as fluororubber, polytetrafluoroethylene, butyl rubber, neoprene, ethylene propylene rubber, etc., and the fluororubber and polytetrafluoroethylene have the widest application range, so that the accuracy and reliability of pressure measurement can be ensured.

The honeycomb duct 2 is used for connecting pipe 1 and drainage bag 3, and the end of honeycomb duct 2 is provided with water conservancy diversion branch pipe 21, and the below that water conservancy diversion branch pipe 21 inserted first pipe fitting 31 communicates with honeycomb duct 2, and when the drainage liquid flowed into the liquid storage chamber 32 of the entering drainage bag 3 of honeycomb duct 2 through pipe 1, the drainage liquid also can fill water conservancy diversion branch pipe 21 and first pipe fitting 31. In order to completely fill the flow guide branch pipe 21 and the first pipe member 31 with the drainage liquid without bubbles, a check valve 5 is provided below the flow guide branch pipe 21, with the inlet side of the check valve 5 being above and the outlet side being below.

In operation of the non-return valve 5, the valve of the non-return valve 5 will automatically open when the drainage fluid flows from the inlet side to the outlet side of the valve; the valve is sealed closed when the drainage fluid flows back from the outlet side to the inlet side. In this process, the minimum pressure required by the valve opening is the starting pressure, and the existence of the valve starting pressure enables the drainage liquid to completely fill the diversion branch pipe 21 and the first pipe fitting 31 before flowing into the drainage bag 3, and in addition, the backflow of the drainage liquid can be prevented, so that the liquid can be prevented from flowing back into the human body, and the purposes of preventing infection and cross infection are achieved.

The pressure measuring device 4 has a rectangular parallelepiped-shaped housing in which a second pipe 41, a pressure sensor 42, a power supply 44, and a circuit board 45 are provided, a display screen 43 is mounted on a surface of the housing, the pressure sensor 42, the display screen 43, and the pressure sensor 42 are connected to the circuit board 45 through cables, respectively, and the circuit board 45 is connected to the power supply 44 through cables to supply power to various electronic components. In this embodiment, the pressure sensor 42 is a barometer, and the barometer mainly includes a sensor module, a data processing chip, and the like. The sensor module is a main component of the barometer and is generally composed of a micro piezoelectric element and a vibrating diaphragm, and can convert the pressure change of the external air into corresponding electric signals to be output. When external air pressure acts on the surface of the piezoelectric element, the micro deformation of the element is caused, and corresponding charge signals are generated. The signal is amplified, processed and converted to obtain accurate gas pressure value. These components are typically packaged in a miniaturized metal cover or plastic housing to protect them from mechanical damage or contamination, etc.

The data processing chip has the functions of acquisition, amplification, filtering, AD conversion, temperature compensation and the like, and converts the electric signals output by the sensor into digital signals which can be identified and used. Meanwhile, the data processing chip also has certain calculating and storing functions, and can automatically calculate the pressure value and store the data. Finally, the digital signal is converted into a pressure value and output to the display screen 43 for display, so that medical staff can intuitively check the pressure value. In the medical field, the unit of the pressure value is usually mmHg, that is, mmHg, and the unit of the pressure value measured by the pressure sensor 42 is usually KPa, that is, KPa, so that additional unit conversion is required.

Working principle:

in cystometry, medical personnel inject a patient with a local anesthetic and apply a lubricant to the surface of the catheter 1 to reduce discomfort and pain. The catheter 1 is then carefully inserted into the urethra, through the urethral sphincter, through the bladder neck, and finally into the bladder. Once the catheter 1 is inserted into the bladder, the medical staff clamps the flow stop clamp 6, then injects a certain amount of physiological saline through the injection port on the side edge of the double-lumen catheter 1 by the injector, then opens the flow stop clamp 6, and the drainage liquid flows to the drainage bag 3 while generating pressure on the diaphragm 312, so that the diaphragm 312 is deformed upwards to compress the airtight air above, the air pressure of the second pipe fitting 41 is increased, the pressure sensor 42 generates a corresponding electric signal and then outputs the pressure value to the display screen 43, and thus the bladder pressure is indirectly measured. Therefore, the bladder pressure measuring device 4 has the advantages of small volume, simple operation, no direct contact with drainage liquid in the pressure measuring process, and direct replacement of a new drainage bag 3 after pressure measurement by the pressure measuring device 4 without pollution to the pressure measuring device 4.

In the description of the present specification, reference to the terms "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

What has been described above is merely some embodiments of the present utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.

Claims (10)

1. The utility model provides a bladder pressure measurement device, includes pipe (1), drainage bag (3) and makes honeycomb duct (2) of pipe (1) and drainage bag (3) intercommunication be provided with between pipe (1) and end seal clamp (6), its characterized in that, drainage bag (3) are provided with first pipe fitting (31), the end of honeycomb duct (2) is provided with water conservancy diversion branch pipe (21), water conservancy diversion branch pipe (21) communicate to first pipe fitting (31), still include pressure measurement device (4), pressure measurement device (4) include second pipe fitting (41), power (44), circuit board (45), pressure sensor (42) and display screen (43), first pipe fitting (31) with second pipe fitting (41) socket joint, be provided with diaphragm (312) between first pipe fitting (31) and the second pipe fitting (41), pressure sensor (42) set up in diaphragm (312) with in the sealed space that second pipe fitting (41) formed, pressure sensor (42), display screen (43) and pressure sensor (42) are connected to circuit board (45) respectively with circuit board (45), the pressure sensor (42) inputs the acquired pressure to the circuit board (45) and displays the pressure value through the display screen (43).

2. A bladder pressure measuring device according to claim 1, wherein the first tube (31) has an open upper and lower end structure.

3. A bladder pressure measuring device according to claim 1, wherein the second tube (41) has an upper closed lower open configuration.

4. The bladder pressure measuring device according to claim 1, wherein the first tube (31) is provided with a socket (311), the second tube (41) is provided with a socket (411), and the socket (311) of the first tube (31) and the socket (411) of the second tube (41) are in socket connection.

5. The cystometric device of claim 4, wherein said spigot (411) is an annular tooth and said socket (311) is an annular slot.

6. A cystometric device according to claim 1, characterized in that said membrane (312) is arranged above said first tube (31).

7. The cystometric device of claim 6, wherein the edge of the membrane (312) is fixedly connected to the upper edge of the first tube (31).

8. The cystometric device of claim 1, wherein said membrane (312) is made of any one of fluororubber, polytetrafluoroethylene, butyl rubber, neoprene and ethylene propylene rubber.

9. A cystometric device according to claim 1, characterized in that said pressure sensor (42) is a barometer.

10. A bladder pressure measuring device according to claim 1, characterized in that a non-return valve (5) is arranged below the flow branch (21).