Convertible flusher for measuring intra-abdominal pressure

Abstract

The utility model discloses a convertible flusher for measuring intra-abdominal pressure. The convertible flusher comprises a solution bag, a Murphy's dropper, a flow regulator, a flushing pipe, a three-way valve, a liquid level measuring pipe and a urinary catheter. According to the utility model, the overall leakproofness of the pipeline can be kept, and the risk of infection of the urinary system of a patient caused by frequent opening and closing of the pipeline is reduced; the liquid adding operation is simple and convenient, the pipe washing liquid amount can be accurately controlled, and it is guaranteed that the measurement result is not affected by too much pipe washing liquid.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a convertible flushing device for measuring intra-abdominal pressure. Background Art

[0002] Intra-abdominal pressure (IAP) is the pressure inside the peritoneal cavity. It is 0-5mmHg for normal adults, while it is 5-7mmHg for critically ill patients. When various high-risk factors are superimposed and the patient's intra-abdominal pressure further rises to ≥12mmHg, intra-abdominal hypertension (IAH) occurs. This situation is divided into 4 levels according to the severity of the pressure. If there is one or more organ failure at level 3 or above, it is abdominal compartment syndrome (ACS). Clinically, abdominal compartment syndrome (ACS) is a critical symptom that requires emergency treatment and has a very high mortality rate. The incidence of intra-abdominal hypertension IAH is high and harmful. Statistical studies show that the incidence of IAH in medical patients is 54.4%, the incidence of surgical patients is 65%, and the incidence of IAH in the general population is 58.8%. In the ICU, the incidence of intra-abdominal hypertension is 30%-60%, and the incidence of ACS in the ICU is lower, at 0.9%-12%, but its mortality rate is as high as 50-80% (Malbrain, 2004).

[0003] Therefore, it is often necessary to measure intra-abdominal pressure for abdominal pressure monitoring and screening in clinical practice. The specific methods are mainly divided into indirect measurement and direct measurement. The results of direct measurement are accurate, but it is more invasive and the cost of instrument consumables is high. Indirect measurement is mostly used in clinical practice. Among them, indirect measurement uses bladder pressure measurement as the gold standard. The specific operation steps and methods (such as Figure 1 As shown): First, place a 16 or 18-gauge double-lumen or triple-lumen catheter in the patient's urethra. The patient should lie flat or supine as much as possible at an angle of ≤15°. Drain all urine to empty the bladder. Connect the pressure measuring line (currently a bladder irrigation tube is commonly used) and vent the air. Drip ≤25 ml of normal saline into the bladder (recommended by the WSACS 2017 guidelines). After 30-60 seconds of normal saline injection, the saline level stabilizes. Then measure the liquid level using a manual ruler, and take the level of the mid-axillary line of the iliac spine as the zero point to obtain the bladder pressure value.

[0004] At present, there are two main problems in clinical intermittent intra-abdominal pressure measurement: (1) Using a bladder flusher to measure intermittent intra-abdominal pressure is a common intra-abdominal pressure monitoring method used by clinical nurses. However, it is easy to make hand-eye errors when operating manually, and considering efficiency, nurses often find it difficult to accurately control the dose of saline injected into the bladder. According to the guidelines updated in 2013 and 2017 by the World Association of Abdominal Compartments (ACS), when measuring intra-bladder pressure, it is recommended that the dose of saline injected into the bladder should be ≤25mL, and the data obtained is more accurate. Therefore, it is very necessary to provide a device that is convenient for nurses to measure and control the amount of saline flushing, easy to operate, and can also ensure the accuracy of the measurement results. (2) While ensuring the accuracy of the intermittent intra-abdominal pressure measurement results, it is also necessary to ensure the airtightness of the entire measurement device to avoid the increased risk of urinary tract infection in patients due to pipeline disconnection. The existing method of injecting flushing fluid through a syringe is difficult to ensure the overall airtightness of the pipeline. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a convertible intra-abdominal pressure measuring flusher, which can solve the problems of difficult to accurately control flushing volume and poor airtightness existing in current intra-abdominal pressure measuring devices.

[0006] The utility model is realized by the following technical solutions:

[0007] A convertible irrigator for measuring intra-abdominal pressure, comprising: a solution bag for accommodating a flushing solution; a Murphy's dropper with a volume of not less than 25 ml, on which a 25 ml scale mark is engraved, the solution bag is connected to the Murphy's dropper through a pipeline provided with a switch valve, and the Murphy's dropper is provided with an atmospheric valve; a flushing tube, one end of which is connected to the Murphy's dropper, and the other end is used to connect a urinary catheter to connect to the bladder; a three-way valve, which is arranged on the flushing tube, and the three valves of the three-way valve are respectively connected to the Murphy's dropper, the urinary catheter and a liquid level measuring tube; a liquid level measuring tube, one end of which is detachably connected to a valve of the three-way valve, and the other end is provided with a breathable and waterproof membrane; the flushing tube is also provided with a flow regulator for adjusting the flow of the flushing solution, and the flow regulator is arranged at the liquid outlet rear end of the Murphy's dropper.

[0008] Furthermore, the convertible intra-abdominal pressure irrigator also includes: a three-way connector and a urine bag connection drainage tube; the three-way connector is arranged on the irrigating tube and is located at the rear end of the three-way valve, and the three connecting ends of the three-way connector are respectively connected to the Murphy's dropper, the urine catheter and the urine bag connection drainage tube; the urine bag connection drainage tube is used for externally connecting a urine bag, and a urine catheter drainage switch clamp is provided on the urine bag connection drainage tube.

[0009] Furthermore, a vent hole is provided at the top of the Murphy's dropper, and the atmosphere-connecting valve is placed in the vent hole, so that the Murphy's dropper is both breathable and waterproof.

[0010] Furthermore, the three-way valve includes: a first valve, a second valve and a third valve; the first valve is connected to one side of the Murphy's dropper, the second valve is connected to one side of the urine catheter, and the liquid level measuring tube is detachably mounted on the third valve.

[0011] Furthermore, the three-way connector includes: a first connector, a second connector and a third connector; the first connector corresponds to one side of the Murphy's dropper, the second connector corresponds to one side of the urine catheter, and the third connector is connected to the urine bag connection drainage tube.

[0012] Furthermore, the solution bag is a soft saline bag that is easy to squeeze.

[0013] Furthermore, scale lines for measuring the height of the liquid column are engraved on the side wall of the liquid level measuring tube.

[0014] Furthermore, the convertible intra-abdominal pressure measuring flusher also includes: a bladder pressure monitor; the liquid level measuring tube and the bladder pressure monitor are selectively installed on the third valve.

[0015] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0016] (1) The utility model adopts a solution bag, a Murphy's dropper and a flow regulator as the liquid inlet unit of the flushing tube. Compared with the previous method of injecting liquid with a syringe, the liquid inlet unit does not need to be installed or disassembled before and after the liquid is injected. The overall airtightness of the pipeline can be maintained throughout the liquid injection process, thereby reducing the risk of urinary tract infection in patients caused by frequent disconnection of the pipeline.

[0017] (2) The volume of the Murphy's dropper is not less than 25 ml and is engraved with a 25 ml scale line. Each time you add liquid, you need to gently squeeze the saline in the solution bag into the Murphy's dropper until the liquid level is below the 25 ml scale line. The liquid addition operation is simple and can accurately ensure that the amount of flushing liquid is ≤ 25 ml, thereby ensuring that the measurement result is not affected by excessive flushing liquid.

[0018] (3) When the patient is undergoing screening, the bladder pressure value can be measured by installing a liquid level meter on the three-way valve; when the patient needs continuous bladder monitoring, the liquid level measuring tube can be directly removed and replaced with a universal pressure sensor and monitor to convert the device into continuous intra-abdominal pressure monitoring, thus having dual-purpose functions.

[0019] (4) A breathable and waterproof membrane is provided at the open end of the measuring tube, which enhances the overall airtightness of the measuring tube and avoids the inconvenience caused by opening the measuring tube for measurement and the risk of contamination and nosocomial infection of urinary tract infection caused by frequent opening of the tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Shown is a schematic diagram of the existing state of measuring intra-abdominal pressure;

[0021] Figure 2 Shown is a schematic structural diagram of the first embodiment of the utility model;

[0022] Figure 3 Shown is a structural schematic diagram of the second embodiment of the present utility model.

[0023] In the figure: 10, solution bag; 20, switch valve; 30, Murphy's dropper; 31, connected to the atmosphere valve; 40, flow regulator; 50, flushing tube; 60, three-way valve; 61, first valve; 62, second valve; 63, third valve; 70, liquid level measuring tube; 71, breathable and waterproof membrane; 80, three-way connector; 81, first connector; 82, second connector; 83, third connector; 90, urine bag connected to drainage tube; 91, urine bag drainage switch clamp; 100, urine bag. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0025] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Embodiment 1:

[0029] See also Figure 2 The utility model discloses a convertible irrigator for measuring intra-abdominal pressure, comprising: a solution bag 10, a Murphy's dropper 30, a flow regulator 40, an irrigating tube 50, a three-way valve 60, a liquid level measuring tube 70, and a urine catheter (not shown, both ends of the urine catheter are connected to the irrigating tube 50 and the bladder respectively).

[0030] The solution bag 10 is used to accommodate the flushing solution, which is a saline solution for flushing the bladder. The solution bag 10 can use a soft saline bag. The solution bag 10 is connected to the Murphy's dropper 30 through a pipeline provided with a switch valve 20, and the switch valve 20 is used to control the saline solution in the solution bag 10 to enter the Murphy's dropper 30 or stop. The volume of the Murphy's dropper 30 is not less than 25ml, and a 25ml scale line is engraved on the side wall. Therefore, the switch valve 20 can control the solution bag 10 to inject ≤25ml (in line with the WSACS2017 guideline standard) of saline solution into the Murphy's dropper 30. A Unicom atmospheric valve 31 is also provided in the Murphy's dropper 30. When the Unicom atmospheric valve 31 is opened, the interior of the Murphy's dropper 30 is connected to the atmospheric pressure. One end of the flushing tube 50 is connected to the Murphy's dropper 30, and the other end is connected to the urinary catheter, which is connected to the patient's bladder. The flushing tube 50 is also provided with a flow regulator 40 , which is arranged at the rear end of the liquid outlet of the Murphy's dropper 30 and is used to adjust the flow of the flushing liquid entering the flushing tube 50 from the Murphy's dropper 30 .

[0031] The three-way valve 60 is disposed on the flushing tube 50, and the three valves of the three-way valve 60 are respectively connected to the Murphy's dropper 30, the urine tube and the liquid level measuring tube 70. Specifically, the three-way valve 60 includes a first valve 61, a second valve 62 and a third valve 63, the first valve 61 is connected to the side of the flushing tube 50 relative to the Murphy's dropper 30, the second valve 62 is connected to the side of the flushing tube 50 relative to the urine tube, and the liquid level measuring tube 70 is detachably connected to the third valve 63.

[0032] Preferably, a vent hole is provided at the top of the Murphy's dropper 30, and the atmosphere valve 31 is placed in the vent hole, so that the Murphy's dropper 30 has both air permeability and waterproof properties, thereby improving the airtightness of the pressure measuring pipeline.

[0033] Preferably, the solution bag 10 is a soft saline bag that is easy to squeeze, so that medical personnel can squeeze the physiological saline in the saline bag into the Murphy's dropper 30 .

[0034] Preferably, scale lines for measuring the height of the liquid column are engraved on the side wall of the liquid level measuring tube 70. When measuring pressure, the height of the liquid column in the liquid level measuring tube 70 reflects the magnitude of the bladder pressure value.

[0035] Preferably, the utility model further comprises a universal pressure sensor and a bladder pressure monitor, and the liquid level measuring tube 70 and the bladder pressure monitor are selectively installed on the third valve 63. When the patient is screened, the bladder pressure value can be measured by installing a liquid level measuring device on the three-way valve 60; when the patient needs continuous bladder monitoring, the liquid level measuring tube 70 can be directly removed and replaced with a universal pressure sensor and monitor, so that the device is converted into continuous intra-abdominal pressure monitoring, thus having dual-purpose functions.

[0036] The working process and principle of this embodiment are as follows:

[0037] Open the switch valve 20, close the flow regulator 40, gently squeeze the solution bag 10 to allow the physiological saline solution inside to enter the Murphy's dropper 30, stop squeezing and close the switch valve 20 until the saline reaches the scale line; open the flow regulator 40, open the third valve 63 of the three-way valve 60, and exhaust the entire pipeline (the liquid level measuring tube 70 is exhausted to the highest position of the scale line), and after exhausting, close the flow regulator 40 and the third valve 63 of the three-way valve 60; connect the liquid outlet end of the flushing tube 50 to the indwelling urinary catheter; first open the air valve 31, then open the flow regulator 40, so that The saline solution in the Murphy's dropper 30 is slowly dripped into the flushing tube 50 and enters the bladder through the urinary catheter; when the saline solution in the Murphy's dropper 30 is emptied, the flow regulator 40 is closed and wait for 30 seconds; the liquid level measuring tube 70 is aligned with the scale to determine the zero point, the first valve 61 of the three-way valve 60 is closed and the third valve 63 is opened. Through the function of the breathable and waterproof membrane 71 on the top of the liquid level measuring tube 70, the nurse can directly measure the bladder pressure without opening the measuring tube mouth, observe the liquid level drop to the lowest scale and measure the water column height from the zero point to the lowest scale, record it in cm, and the water column pressure is the bladder pressure. If the screening abdominal pressure (bladder pressure) measurement reading exceeds 15cmH2O, remove the liquid level measuring tube 70 from the three-way valve 60, and replace it with a universal pressure sensor and a bladder pressure monitor to continuously monitor the patient's intra-abdominal pressure (bladder pressure).

[0038] Accordingly, the beneficial effects of the flushing device are:

[0039] (1) The present invention uses a solution bag 10, a Murphy's dropper 30 and a flow regulator 40 as a liquid inlet unit of the flushing tube 50. Compared with the conventional method of injecting liquid using a syringe, the present liquid inlet unit does not need to be assembled or disassembled before and after the liquid is injected. The overall airtightness of the pipeline can be maintained throughout the entire liquid injection process, thereby reducing the risk of urinary system infection in patients caused by frequent disconnection of the pipeline.

[0040] (2) The volume of the Murphy's dropper 30 is not less than 25 ml and is engraved with a 25 ml scale line. Each time liquid is added, the physiological saline in the solution bag 10 needs to be gently squeezed into the Murphy's dropper 30 until the liquid level is below the 25 ml scale line. The liquid addition operation is simple and can accurately ensure that the flushing liquid volume is ≤ 25 ml, thereby ensuring that the measurement result is not affected by excessive flushing liquid.

[0041] (3) When the patient is undergoing screening, the bladder pressure value can be measured by installing a liquid level meter on the three-way valve 60; when the patient needs continuous bladder monitoring, the liquid level measuring tube 70 can be directly removed and replaced with a universal pressure sensor and monitor, so that the device is converted into continuous intra-abdominal pressure monitoring, thereby having dual-purpose functions.

[0042] (4) A breathable waterproof membrane 71 is provided at the open end of the measuring tube, which enhances the overall airtightness of the measuring tube, avoiding the inconvenience caused by opening the measuring tube for measurement in the past and the risk of contamination and nosocomial infection of urinary tract infection caused by frequent opening of the tube.

[0043] Embodiment 2:

[0044] See also Figure 3 , Embodiment 2 includes all the structures of Embodiment 1, and in addition to the structures of Embodiment 1, Embodiment 2 is further provided with a three-way connector 80 and a urine bag connection drainage tube 90; the three-way connector 80 is provided on the flushing tube 50 and is located at the rear end of the three-way valve 60, and the three connection ends of the three-way connector 80 are respectively connected to the Murphy's dropper 30, the urinary catheter and the urine bag connection drainage tube 90; the urine bag connection drainage tube 90 is used to connect the urine bag 100 externally, and a urinary catheter drainage switch clip is provided on the urine bag connection drainage tube 90. Specifically, the three-way connector 80 includes: a first connector 81, a second connector 82 and a third connector 83; the first connector 81 is correspondingly connected to one side of the Murphy's dropper 30, the second connector 82 is correspondingly connected to one side of the urinary catheter, and the third connector 83 is connected to the urine bag connection drainage tube 90.

[0045] The function of the second embodiment is:

[0046] ① Before measurement, the urine in the patient's bladder needs to be emptied first. Therefore, before the measurement operation of Example 1, connect the urine bag connecting drainage tube 90 and the urine bag 100 to the third joint 83 of the three-way connector 80, close the first interface of the three-way connector 80, open the third joint 83 and the urinary catheter drainage switch clamp, and make the urine bag connecting drainage tube 90 and the urinary catheter in a connected state, so that the urine in the bladder can be discharged into the urine bag 100 through the urine bag connecting drainage tube 90, and the urine can be prevented from flowing back into the flushing device. When measuring pressure, the urine bag connecting drainage tube 90 and the urine bag 100 can be disassembled from the third joint 83, and then the pressure can be measured according to the operating steps of Example 1.

[0047] ② When the patient needs to measure the intra-abdominal pressure multiple times, the saline solution in the bladder needs to be emptied after each measurement before new saline solution can be injected. At this time, the operation is the same as the above-mentioned point ①. Open the third joint 83 and the urinary catheter drainage switch clamp, so that the urine bag connecting drainage tube 90 and the urinary catheter are in a connected state, and the saline in the bladder can be discharged into the urine bag 100 through the urine bag connecting drainage tube 90, and the saline discharged from the bladder can be prevented from flowing back into the flushing device. When measuring pressure, the urine bag connecting drainage tube 90 and the urine bag 100 can be disassembled from the third joint 83, and then the pressure is measured according to the operating steps of Example 1.

[0048] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A convertible intra-abdominal pressure measuring flusher, characterized in that: include: A solution bag for containing flushing solution; A Murphy's dropper with a volume of not less than 25 ml, the Murphy's dropper is engraved with a 25 ml scale mark, the solution bag is connected to the Murphy's dropper through a pipeline provided with a switch valve, and the Murphy's dropper is provided with an atmospheric valve; An irrigation tube, one end of which is connected to the Murphy's dropper, and the other end of which is used to connect to a urinary catheter to communicate with the bladder; A three-way valve, arranged on the flushing tube, wherein the three valves of the three-way valve are respectively connected to the Murphy's dropper, the urine tube and the liquid level measuring tube; A liquid level measuring tube, one end of which is detachably connected to a valve of the three-way valve, and the other end of which is provided with a breathable and waterproof membrane; The flushing pipe is also provided with a flow regulator for regulating the flow of the flushing liquid, and the flow regulator is arranged at the liquid outlet rear end of the Murphy's dropper.

2. The switchable intra-abdominal pressure measuring flusher according to claim 1, characterized in that: The switchable intra-abdominal pressure measuring flusher also includes: a three-way connector and a urine bag connecting drainage tube; The three-way connector is arranged on the flushing pipe and is located at the rear end of the three-way valve, and the three connecting ends of the three-way connector are respectively connected to the Murphy's dropper, the urine tube and the urine bag connection drainage tube; The urine bag connecting drainage tube is used for externally connecting a urine bag, and a urine catheter drainage switch clip is arranged on the urine bag connecting drainage tube.

3. The switchable intra-abdominal pressure measuring flusher according to claim 1, characterized in that: An exhaust hole is arranged at the top of the Murphy's dropper, and the atmosphere-connecting valve is arranged in the exhaust hole, so that the Murphy's dropper is both breathable and waterproof.

4. The switchable intra-abdominal pressure measuring flusher according to claim 1, characterized in that: The three-way valve comprises: a first valve, a second valve and a third valve; The first valve is correspondingly connected to one side of the Murphy's dropper, the second valve is correspondingly connected to one side of the urine catheter, and the liquid level measuring tube is detachably mounted on the third valve.

5. The switchable intra-abdominal pressure measuring flusher according to claim 2, characterized in that: The three-way connector includes: a first connector, a second connector and a third connector; The first connector is connected to one side of the Murphy's dropper, the second connector is connected to one side of the urine catheter, and the third connector is connected to the urine bag connection drainage tube.

6. The switchable intra-abdominal pressure measuring flusher according to claim 1, characterized in that: The solution bag is a soft saline bag that is easy to squeeze.

7. The switchable intra-abdominal pressure measuring flusher according to claim 1, characterized in that: The side wall of the liquid level measuring tube is engraved with scale lines for measuring the height of the liquid column.

8. The switchable intra-abdominal pressure measuring flusher according to claim 4, characterized in that: The convertible intra-abdominal pressure measuring flusher also includes: a bladder pressure monitor; the liquid level measuring tube and the bladder pressure monitor are alternatively installed on the third valve.

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