Abnormal pressure measurement control method, system, device and pneumoperitoneum machine

Abstract

The present invention relates to the technical field of medical devices, and provides a method for controlling pressure measurement abnormality of an insufflator, comprising: obtaining intake pressure, pressure measurement pressure, and smoke exhaust pressure; calculating the difference between the intake pressure and the pressure measurement pressure, and the difference between the pressure measurement pressure and the smoke exhaust pressure; when the difference between the intake pressure and the pressure measurement pressure is greater than a first preset difference and less than a second preset difference, and the difference between the pressure measurement pressure and the smoke exhaust pressure is greater than a third preset difference and less than a fourth preset difference, selecting the pressure measurement pressure as the display pressure; otherwise, starting a first pressure measurement abnormality detection program. By monitoring the changes in the difference between the intake pressure and the pressure measurement pressure, and the difference between the pressure measurement pressure and the smoke exhaust pressure, it is possible to identify pressure monitoring abnormalities caused by equipment failure during surgery, increase equipment stability, and reduce surgical risks.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a method, system, device and a pneumoperitoneum machine for controlling abnormal pressure measurement. Background Art

[0002] The existing circulating insufflator includes an air intake channel, a smoke exhaust channel and a pressure measurement channel. The air intake channel is used to provide clean carbon dioxide into the insufflator, the smoke exhaust channel is used to exhaust smoke particles in the insufflator, and the pressure measurement channel equipped with a pressure sensor is used to measure the actual pressure in the insufflator. These three channels must be connected to the filter to ensure the purity of the circulating gas. However, there is a problem with the above insufflator, that is, it cannot well identify the pressure monitoring abnormality caused by the failure of the device during the operation.

[0003] For example, if the pressure is abnormal due to leakage in the pipeline, the filter is a disposable consumable, so each operation requires the three channels to be manually connected to a new filter, which inevitably leads to the problem of loose sealing of the pipeline. If the pipeline of the pressure measuring channel is not sealed tightly and leaks, it will lead to abnormal pressure measurement, that is, the pressure value monitored by the pressure measuring channel does not match the actual pressure value in the pneumoperitoneum.

[0004] For example, abnormal pressure caused by bending or blockage of the pipeline. If the air inlet channel is blocked, the pressure measuring pipeline can only monitor that the pressure in the pneumoperitoneum is decreasing. However, there may be many reasons for the decrease in pressure in the pneumoperitoneum, and it cannot provide more judgment information, let alone confirm whether the pressure abnormality is caused by the equipment itself.

[0005] Since the pneumoperitoneum machine adjusts air intake or exhaust according to the pressure value monitored by the pressure measuring channel to ensure that the actual pressure in the pneumoperitoneum remains within the expected pressure range, if air leakage occurs, the pressure value monitored by the pressure measuring channel will not match the actual pressure value in the pneumoperitoneum, which will bring huge surgical risks; if bending or blockage occurs but is not discovered, the equipment may continue to adjust in order to maintain the expected pressure range, causing equipment wear and tear while also increasing the instability of the pneumoperitoneum.

[0006] Therefore, there is a need for a new pneumoperitoneum machine that can better identify pressure monitoring anomalies caused by equipment failure during surgery, increase equipment stability, and reduce surgical risks. Summary of the invention

[0007] The purpose of the present invention is to provide a method, system, device and pneumoperitoneum machine for controlling pressure measurement abnormality, so as to solve the technical problem in the prior art of being unable to identify pressure monitoring abnormalities caused by equipment failure during surgery.

[0008] In the first aspect, an embodiment of the present invention provides a method for controlling pressure measurement abnormalities of an insufflator, comprising: obtaining air intake pressure, pressure measurement pressure and smoke exhaust pressure; calculating the difference between the air intake pressure and the pressure measurement pressure, and the difference between the pressure measurement pressure and the smoke exhaust pressure; when the difference between the air intake pressure and the pressure measurement pressure is greater than a first preset difference and less than a second preset difference, and the difference between the pressure measurement pressure and the smoke exhaust pressure is greater than a third preset difference and less than a fourth preset difference, selecting the pressure measurement pressure as the display pressure; otherwise, starting a first pressure measurement abnormality detection program.

[0009] Furthermore, the first pressure measurement abnormality detection procedure includes:

[0010] When the difference between the intake pressure and the measured pressure is less than or equal to the first preset difference, and the difference between the measured pressure and the exhaust pressure is greater than the third preset difference and less than the fourth preset difference, the measured pressure is selected as the displayed pressure and a first warning signal is issued.

[0011] When the difference between the intake pressure and the pressure measurement pressure is less than or equal to the first preset difference, and the difference between the pressure measurement pressure and the exhaust pressure is greater than or equal to the fourth preset difference, the static pressure of the exhaust passage is selected as the display pressure, and a second warning signal is issued.

[0012] When the difference between the intake pressure and the measured pressure is greater than or equal to the second preset difference, and the difference between the measured pressure and the exhaust pressure is greater than the third preset difference and less than the fourth preset difference, the measured pressure is selected as the displayed pressure and a third warning signal is issued.

[0013] When the difference between the intake pressure and the pressure measurement pressure is greater than or equal to the second preset difference, and the difference between the pressure measurement pressure and the exhaust pressure is less than or equal to the third preset difference, the static pressure of the intake passage is selected as the displayed pressure, and a fourth warning signal is issued.

[0014] When the difference between the measured pressure and the exhaust pressure is less than or equal to the third preset difference, and the difference between the intake pressure and the measured pressure is greater than the first preset difference and less than the second preset difference, the measured pressure is selected as the displayed pressure and a fifth warning signal is issued.

[0015] When the difference between the measured pressure and the exhaust pressure is greater than or equal to the fourth preset difference, and the difference between the intake pressure and the measured pressure is greater than the first preset difference and less than the second preset difference, the measured pressure is selected as the displayed pressure and a sixth warning signal is issued.

[0016] Further, the selecting the static pressure of the smoke exhaust channel as the display pressure includes: acquiring the pressure of the smoke exhaust channel at a moment after a first preset time period has passed since the smoke exhaust channel stopped exhausting smoke.

[0017] Further, the selecting the static pressure of the intake passage as the display pressure includes: acquiring the pressure of the intake passage at a moment after a second preset time period has passed since the intake passage stops taking in air.

[0018] Furthermore, the obtaining of the intake pressure, the pressure measuring pressure and the exhaust pressure includes: obtaining the first intake pressure and the second intake pressure, the first pressure measuring pressure and the second pressure measuring pressure, the first exhaust pressure and the second exhaust pressure; if the difference between the first intake pressure and the second intake pressure, the difference between the first pressure measuring pressure and the second pressure measuring pressure, and the difference between the first exhaust pressure and the second exhaust pressure are all less than or equal to a preset accuracy difference, then taking the average values ​​of the first intake pressure and the second intake pressure, the first pressure measuring pressure and the second pressure measuring pressure, and the first exhaust pressure and the second exhaust pressure as the intake pressure, the pressure measuring pressure and the exhaust pressure; otherwise, starting the first pressure judgment procedure.

[0019] Furthermore, the first pressure determination procedure includes:

[0020] If the difference between the first intake pressure and the second intake pressure is greater than the preset accuracy difference, the pressure value between the first intake pressure and the second intake pressure, whose difference with the measured pressure is greater than the first preset difference and less than the second preset difference, is taken as the intake pressure.

[0021] If the difference between the first pressure measuring pressure and the second pressure measuring pressure is greater than the preset accuracy difference, the pressure measuring pressure is taken as the pressure measuring pressure, wherein the difference between the intake pressure and a certain pressure measuring pressure is greater than the first preset difference and less than the second preset difference, and the difference between the certain pressure measuring pressure and the exhaust pressure is greater than the third preset difference and less than the fourth preset difference.

[0022] If the difference between the first smoke exhaust pressure and the second smoke exhaust pressure is greater than the preset accuracy difference, the pressure value between the first smoke exhaust pressure and the second smoke exhaust pressure, in which the difference between the measured pressure and a certain smoke exhaust pressure is greater than the first preset difference and less than the second preset difference, is taken as the smoke exhaust pressure.

[0023] In the second aspect, an embodiment of the present invention also provides a pressure measurement abnormality control system for an insufflator, comprising: a pressure acquisition module, used to obtain air intake pressure, pressure measurement pressure and smoke exhaust pressure; a difference calculation module, used to calculate the difference between the air intake pressure and the pressure measurement pressure, and the difference between the pressure measurement pressure and the smoke exhaust pressure; a control module, used to determine whether to start a first pressure measurement abnormality detection program based on the difference, and select the corresponding pressure as the display pressure.

[0024] In a third aspect, an embodiment of the present invention further provides a device for controlling abnormal pressure measurement of a pneumoperitoneum machine, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program implements the method steps described in any one of the preceding items when it is executed.

[0025] In a fourth aspect, an embodiment of the present invention further provides an insufflator, comprising the insufflator pressure measurement abnormality control device as described in the third aspect; an insufflator body; an internal pipeline unit, wherein the internal pipeline unit is located inside the insufflator body and comprises an air intake channel, a pressure measurement channel and a smoke exhaust channel, wherein the air intake channel is connected to an air intake pump, and the smoke exhaust channel is connected to a smoke exhaust pump; a filter unit, wherein the filter unit is connected to the insufflator body, and the air intake channel, the smoke exhaust channel and the pressure measurement channel are all connected to the filter unit; an external pipeline unit, wherein the external pipeline unit comprises an air intake pipeline, a pressure measurement pipeline and a smoke exhaust pipeline, and the external pipeline unit is connected to the filter unit; a display unit, for displaying the real-time pressure inside the insufflator; a pressure sensor unit, wherein the pressure sensor unit comprises three groups of pressure sensor assemblies, and the three groups of pressure sensor assemblies are respectively installed on the air intake channel, the smoke exhaust channel and the pressure measurement channel; the display unit, the pressure sensor unit and the internal pipeline unit are all electrically connected to the insufflator pressure measurement abnormality control device.

[0026] Furthermore, the pressure sensor assembly includes two pressure sensors.

[0027] The embodiments of the present invention have at least the following technical effects:

[0028] An embodiment of the present invention provides a method for controlling abnormal pressure measurement of an insufflator. During the normal operation of a circulating insufflator device, the actual abdominal pressure during surgery is ensured to be stable within an appropriate range. Therefore, air is always taken in at the air intake end. At this time, the air intake pressure is greater than the actual abdominal pressure, the pressure measurement pressure is equal to the actual abdominal pressure, and the smoke exhaust end is always inhaling air. Therefore, the smoke exhaust pressure is less than the actual abdominal pressure. The relationship between the three is that the air intake pressure is greater than the pressure measurement pressure, which is greater than the smoke exhaust pressure. If the equipment is normal, and the actual pressure in the pneumoperitoneum fluctuates due to other external factors, such as the doctor's actions or changes in the patient himself, then these three pressures will fluctuate together, but the difference between the air intake pressure and the pressure measuring pressure, and the difference between the pressure measuring pressure and the smoke exhaust pressure will remain within a reasonable range, that is, the difference between the air intake pressure and the pressure measuring pressure is greater than the first preset difference and less than the second preset difference, and the difference between the pressure measuring pressure and the smoke exhaust pressure is greater than the third preset difference and less than the fourth preset difference. At this time, it means that the equipment is normal, and the equipment can use the pressure measuring pressure to display the pressure in the abdominal cavity to the outside; if the difference between the air intake pressure and the pressure measuring pressure or the difference between the pressure measuring pressure and the smoke exhaust pressure is not within the above range, it means that the equipment itself has a fault. At this time, the first pressure measurement abnormality detection program is started to identify the fault type according to the actual change of the difference, and select the pressure value that can represent the actual abdominal cavity pressure as the displayed pressure. Among them, the first preset difference is smaller than the second preset difference, the third preset difference is smaller than the fourth preset difference, the first preset difference and the third preset difference may be the same or different, and the second preset difference and the fourth preset difference may be the same or different, which requires continuous testing based on the data of the equipment during actual operation to finally obtain a reasonable value. The present invention can better identify pressure monitoring anomalies caused by equipment failure during surgery by monitoring the changes in the difference between the intake pressure and the pressure measurement pressure, and the difference between the pressure measurement pressure and the smoke exhaust pressure, thereby increasing equipment stability and reducing surgical risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A schematic flow chart of a method for controlling abnormal pressure measurement of a pneumoperitoneum machine provided by an embodiment of the present invention;

[0031] Figure 2 A schematic diagram of a flow chart of a first pressure measurement anomaly detection procedure provided by an embodiment of the present invention;

[0032] Figure 3A schematic diagram of a process for obtaining intake pressure, pressure measurement pressure and exhaust pressure provided in an embodiment of the present invention;

[0033] Figure 4 A schematic diagram of a flow chart of a first pressure determination procedure provided by an embodiment of the present invention;

[0034] Figure 5 This is a structural block diagram of the pneumoperitoneum machine provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Those skilled in the art will understand that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art in the field to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as here.

[0037] Those skilled in the art will appreciate that, unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0038] Embodiment 1

[0039] For the first aspect, see Figures 1 to 4 The embodiment of the present invention provides a method for controlling abnormal pressure measurement of a pneumoperitoneum machine, comprising:

[0040] S100: Obtain intake pressure, pressure measurement pressure and exhaust pressure.

[0041] S200: Calculate the difference between the intake pressure and the pressure measurement pressure, and the difference between the pressure measurement pressure and the exhaust pressure.

[0042] S300: When the difference between the intake pressure and the pressure measurement pressure is greater than the first preset difference and less than the second preset difference, and the difference between the pressure measurement pressure and the exhaust pressure is greater than the third preset difference and less than the fourth preset difference, the pressure measurement pressure is selected as the display pressure.

[0043] S400: Otherwise, start the first pressure measurement abnormality detection program.

[0044] In this embodiment, during the normal operation of the circulating pneumoperitoneum machine, the actual abdominal pressure during surgery is ensured to be stable within an appropriate range. Therefore, there is always air intake at the air intake end. At this time, the air intake pressure is greater than the actual abdominal pressure, the pressure measuring pressure is equal to the actual abdominal pressure, and the smoke exhaust end is always inhaling air, so the smoke exhaust pressure is less than the actual abdominal pressure. The relationship between the three is that the air intake pressure is greater than the pressure measuring pressure, which is greater than the smoke exhaust pressure. If the equipment is normal, and the actual pressure in the pneumoperitoneum fluctuates due to other external factors, such as the doctor's actions or changes in the patient himself, then these three pressures will fluctuate together, but the difference between the air intake pressure and the pressure measuring pressure, and the difference between the pressure measuring pressure and the smoke exhaust pressure will remain within a reasonable range, that is, the difference between the air intake pressure and the pressure measuring pressure is greater than the first preset difference and less than the second preset difference, and the difference between the pressure measuring pressure and the smoke exhaust pressure is greater than the third preset difference and less than the fourth preset difference. At this time, it means that the equipment is normal, and the equipment can use the pressure measuring pressure to display the pressure in the abdominal cavity to the outside; if the difference between the air intake pressure and the pressure measuring pressure or the difference between the pressure measuring pressure and the smoke exhaust pressure is not within the above range, it means that the equipment itself has a fault. At this time, the first pressure measurement abnormality detection program is started to identify the fault type according to the actual change of the difference, and select the pressure value that can represent the actual abdominal cavity pressure as the displayed pressure. Among them, the first preset difference is smaller than the second preset difference, the third preset difference is smaller than the fourth preset difference, the first preset difference and the third preset difference may be the same or different, and the second preset difference and the fourth preset difference may be the same or different. This requires continuous testing based on the data during the actual operation of the equipment to finally obtain reasonable values.

[0045] The embodiments of the present invention, by monitoring the changes in the difference between the intake pressure and the pressure measurement pressure, as well as the difference between the pressure measurement pressure and the smoke exhaust pressure, can better identify pressure monitoring anomalies caused by equipment failure during surgery, increase equipment stability, and reduce surgical risks.

[0046] In this embodiment, it is specifically described that step S400 specifically includes:

[0047] S401: When the difference between the intake pressure and the pressure measurement pressure is less than or equal to the first preset difference, and the difference between the pressure measurement pressure and the exhaust pressure is greater than the third preset difference and less than the fourth preset difference, the pressure measurement pressure is selected as the display pressure and a first warning signal is issued.

[0048] In this embodiment, when there is air leakage, the air leakage here refers to the possible leakage in the part from the position where the pressure sensor is set to the position where the gas reaches the pneumoperitoneum. The pressure value of the pressure measuring pipeline is the actual pressure of the pneumoperitoneum, so the pressure measuring pressure is selected as the display pressure, but the pressure measuring pressure value will become lower, and the smoke exhaust pressure value will also become lower, but the difference between the pressure measuring pressure and the smoke exhaust pressure is still within the above range, and the air intake pressure value also becomes lower, resulting in the difference between the air intake pressure and the pressure measuring pressure being less than or equal to the first preset difference. At this time, a warning signal needs to be issued, for example, the prompt can be the words "air intake leakage", reminding the doctor to check the equipment and eliminate hidden dangers in time.

[0049] S402: When the difference between the intake pressure and the pressure measurement pressure is less than or equal to the first preset difference, and the difference between the pressure measurement pressure and the exhaust pressure is greater than or equal to the fourth preset difference, the static pressure of the exhaust passage is selected as the display pressure, and a second warning signal is issued.

[0050] In this embodiment, when the intake and pressure measurement are in contact with each other, it means that the two independent pipelines inside the filter are not tightly sealed, and the gas that should enter the pneumoperitoneum enters the pressure measurement pipeline and causes contact with each other. The pressure measurement value of the pressure measurement pipeline is higher than the actual pressure value of the pneumoperitoneum, and the intake pressure value becomes lower, so the difference between the intake pressure and the pressure measurement pressure is less than or equal to the first preset difference, and the difference between the pressure measurement pressure and the smoke exhaust pressure is greater than or equal to the fourth preset difference. Since the pressure measurement pressure can no longer represent the actual pressure of the pneumoperitoneum at this time, the static pressure of the smoke exhaust channel is selected as the display pressure. At this time, a warning signal needs to be issued, such as the prompt can be the words "intake and pressure measurement contact", reminding doctors to check the equipment and eliminate hidden dangers in time.

[0051] S403: When the difference between the intake pressure and the pressure measurement pressure is greater than or equal to the second preset difference, and the difference between the pressure measurement pressure and the exhaust pressure is greater than the third preset difference and less than the fourth preset difference, the pressure measurement pressure is selected as the display pressure and a third warning signal is issued.

[0052] In this embodiment, when the air intake is blocked, the air intake blockage here refers to the possible blockage of the air intake passage from the position where the pressure sensor is set to the position where the gas reaches the pneumoperitoneum. The pressure value of the pressure measuring pipeline is the actual pressure of the pneumoperitoneum, so the pressure measuring pressure is selected as the display pressure, but the pressure measuring pressure value will become lower, and the smoke exhaust pressure value will also become lower, but the difference between the pressure measuring pressure and the smoke exhaust pressure is still within the above range. The air intake blockage will cause the gas to not reach the pneumoperitoneum but continue to intake air, causing the pressure value in the pipeline to increase, resulting in the difference between the air intake pressure and the pressure measuring pressure being greater than or equal to the second preset difference. At this time, a warning signal needs to be issued. For example, the prompt can be the words "air intake blockage" to remind the doctor to check the equipment and eliminate hidden dangers in time.

[0053] S404: When the difference between the intake pressure and the pressure measurement pressure is greater than or equal to the second preset difference, and the difference between the pressure measurement pressure and the exhaust pressure is less than or equal to the third preset difference, the static pressure of the intake passage is selected as the display pressure, and a fourth warning signal is issued.

[0054] In this embodiment, when there is leakage in the pressure measurement or there is gas leakage between the pressure measurement and the smoke exhaust, it means that there may be leakage in the pressure measurement passage from the position where the pressure sensor is set to the position of the pneumoperitoneum, or the two independent pipelines inside the filter are not sealed tightly, resulting in the smoke exhaust having an outward adsorption effect on the pressure of the pressure measurement, which results in the pressure value of the pressure measurement pipeline being lower than the actual pressure value of the pneumoperitoneum, the difference between the pressure measurement pressure and the smoke exhaust pressure is less than or equal to the third preset difference, and the difference between the intake pressure and the pressure measurement pressure is greater than or equal to the second preset difference. Since the pressure measurement pressure can no longer represent the actual pressure of the pneumoperitoneum at this time, the static pressure of the intake channel is selected as the display pressure, and a warning signal needs to be issued at this time, for example, the prompt can be the words "pressure measurement leakage", reminding the doctor to check the equipment and eliminate hidden dangers in time.

[0055] S405: When the difference between the pressure measurement pressure and the exhaust pressure is less than or equal to the third preset difference, and the difference between the intake pressure and the pressure measurement pressure is greater than the first preset difference and less than the second preset difference, the pressure measurement pressure is selected as the display pressure and a fifth warning signal is issued.

[0056] In the present embodiment, when there is a smoke exhaust leak, the smoke exhaust leakage here refers to the possibility of leakage in the smoke exhaust passage from the position where the pressure sensor is installed to the position where the gas leaves the pneumoperitoneum. The pressure value of the pressure measuring pipeline is the actual pressure of the pneumoperitoneum, so the pressure measuring pressure is selected as the displayed pressure. However, the pressure value of the smoke exhaust will increase due to the reduction of the outward suction effect, which will cause the difference between the pressure measuring pressure and the smoke exhaust pressure to be less than or equal to the third preset difference. However, the difference between the air intake pressure and the pressure measuring pressure is still within the above range. At this time, a warning signal needs to be issued. For example, the prompt may be the words "smoke exhaust leakage" to remind the doctor to check the equipment and eliminate hidden dangers in time.

[0057] S406: When the difference between the pressure measurement pressure and the exhaust pressure is greater than or equal to the fourth preset difference, and the difference between the intake pressure and the pressure measurement pressure is greater than the first preset difference and less than the second preset difference, the pressure measurement pressure is selected as the display pressure and a sixth warning signal is issued.

[0058] In the present embodiment, when the smoke exhaust is blocked, the smoke exhaust blockage here refers to the possible blockage of the smoke exhaust passage from the position where the pressure sensor is set to the position where the gas leaves the pneumoperitoneum. The pressure value of the pressure measuring pipeline is the actual pressure of the pneumoperitoneum, so the pressure measuring pressure is selected as the displayed pressure, but the pressure value of the smoke exhaust will decrease due to the increase in the outward suction effect, which will cause the difference between the pressure measuring pressure and the smoke exhaust pressure to be greater than or equal to the fourth preset difference, but the difference between the air intake pressure and the pressure measuring pressure is still within the above range. At this time, a warning signal needs to be issued, for example, the prompt can be the words "smoke exhaust is blocked", to remind the doctor to check the equipment and eliminate hidden dangers in time.

[0059] Specifically, selecting the static pressure of the smoke exhaust channel as the display pressure includes: obtaining the pressure of the smoke exhaust channel at a moment after a first preset time has passed when the smoke exhaust channel stops exhausting smoke. In this embodiment, selecting the static pressure of the smoke exhaust channel as the display pressure means that when the smoke exhaust channel is not exhausting smoke, the pressure measured by the pressure sensor of the smoke exhaust channel is the actual pressure in the pneumoperitoneum, and the smoke exhaust pump must be stopped at this time. For example, if the smoke exhaust pressure is selected to be displayed at this time, the smoke exhaust needs to stop for 1 second before obtaining the pressure value in the smoke exhaust pipe. The first preset time length of 1 second here is just for the convenience of understanding, and it is not a restriction on its value.

[0060] Specifically, selecting the static pressure of the air intake channel as the displayed pressure includes: obtaining the pressure of the air intake channel at a moment after a second preset time period has passed since the air intake channel stops intake. In this embodiment, selecting the static pressure of the air intake channel as the displayed pressure means that when the air intake channel is not intake, the pressure measured by the pressure sensor of the air intake channel is the actual pressure in the pneumoperitoneum, and the air intake pump must be stopped at this time. For example, if the air intake pressure is selected to be displayed at this time, the air intake needs to stop for 1 second before obtaining the pressure value in the air intake pipe. The second preset time length of 1 second here is just for the convenience of understanding, and it is not a limitation on its value.

[0061] In this embodiment, it is specifically described that step S100 specifically includes:

[0062] S101: Acquire a first intake pressure and a second intake pressure, a first pressure measuring pressure and a second pressure measuring pressure, a first exhaust smoke pressure and a second exhaust smoke pressure;

[0063] S102: If the difference between the first intake pressure and the second intake pressure, the difference between the first pressure measuring pressure and the second pressure measuring pressure, and the difference between the first exhaust pressure and the second exhaust pressure are all less than or equal to the preset accuracy difference, then taking the average values ​​of the first intake pressure and the second intake pressure, the first pressure measuring pressure and the second pressure measuring pressure, and the first exhaust pressure and the second exhaust pressure as the intake pressure, the pressure measuring pressure, and the exhaust pressure respectively;

[0064] S103: Otherwise, start the first pressure determination procedure.

[0065] In this embodiment, in order to ensure that the sensor itself is not faulty, two sensors are set at the same position to obtain two pressure values. If the difference between the two pressure values ​​is less than or equal to the preset accuracy difference, it means that the two pressure values ​​are normal, so the average of the two pressure values ​​can be selected as the actual pressure value. The preset accuracy difference here can be 0.1 or 0.01 or other values, which are selected according to the accuracy of the sensor itself. If the difference between the two pressure values ​​is greater than the preset accuracy difference, it means that one of the two sensors may have a fault, and it is necessary to start the first pressure judgment program to select the correct pressure value.

[0066] In this embodiment, it is specifically explained that step S103 specifically includes:

[0067] S1031: If the difference between the first intake pressure and the second intake pressure is greater than the preset accuracy difference, take the pressure value between the first intake pressure and the second intake pressure, whose difference with the measured pressure is greater than the first preset difference and less than the second preset difference, as the intake pressure.

[0068] S1032: If the difference between the first pressure measuring pressure and the second pressure measuring pressure is greater than the preset accuracy difference, take the pressure measuring pressure between the first pressure measuring pressure and the second pressure measuring pressure, the pressure measuring pressure whose difference between the intake pressure and a certain pressure measuring pressure is greater than the first preset difference and less than the second preset difference, and whose difference between the certain pressure measuring pressure and the exhaust pressure is greater than the third preset difference and less than the fourth preset difference as the pressure measuring pressure.

[0069] S1033: If the difference between the first exhaust pressure and the second exhaust pressure is greater than the preset accuracy difference, the pressure value between the first exhaust pressure and the second exhaust pressure, whose difference between the measured pressure and a certain exhaust pressure is greater than the first preset difference and less than the second preset difference, is taken as the exhaust pressure.

[0070] In this embodiment, when the difference between two pressure values ​​at the same position is greater than the preset accuracy difference, the difference between the air intake pressure, the pressure measuring pressure and the smoke exhaust pressure under normal circumstances is used. The correct pressure value is the one that conforms to the difference relationship between the air intake pressure, the pressure measuring pressure and the smoke exhaust pressure. This will not affect the surgical progress due to sensor failure.

[0071] Taking the first intake pressure and the second intake pressure as an example, if the difference between the first intake pressure and the second intake pressure is greater than the preset accuracy difference, the pressure value of the first intake pressure meets the condition that the difference with the pressure measurement pressure is greater than the first preset difference and less than the second preset difference, and the pressure value of the second intake pressure does not meet the condition that the difference with the pressure measurement pressure is greater than the first preset difference and less than the second preset difference. At this time, the pressure value of the first intake pressure should be selected as the intake pressure. The value-taking methods of other pressures can be obtained in the same way, which will not be repeated here.

[0072] Furthermore, after confirming the correct pressure value, the device can also send a prompt signal to indicate a sensor failure, making it easier to repair the device after surgery.

[0073] Furthermore, the above method can be extended to when a problem occurs in one of the two pressure values ​​of the intake pressure, or / and a problem occurs in one of the two pressure values ​​of the pressure measuring pressure, or / and a problem occurs in one of the two pressure values ​​of the exhaust pressure, that is, when sensors at two different positions fail at the same time or when sensors at three different positions fail at the same time, they can all be detected, and the correct pressure value is the one that conforms to the difference relationship between the intake pressure, the pressure measuring pressure and the exhaust pressure, so the sensors at the three positions can detect each other.

[0074] Embodiment 2

[0075] In the second aspect, an embodiment of the present invention provides a pressure measurement abnormality control system for an insufflator, including: a pressure acquisition module, used to obtain air intake pressure, pressure measurement pressure and smoke exhaust pressure; a difference calculation module, used to calculate the difference between air intake pressure and pressure measurement pressure, and the difference between pressure measurement pressure and smoke exhaust pressure; a control module, used to determine whether to start a first pressure measurement abnormality detection program based on the difference, and select the corresponding pressure as the display pressure.

[0076] In this embodiment, the pressure acquisition module is used to monitor the pressure of the air intake channel, the pressure measurement channel and the rehearsal channel in real time; the difference calculation module is used to calculate the difference between the air intake pressure and the pressure measurement pressure, and the difference between the pressure measurement pressure and the smoke exhaust pressure; the control module is used to determine whether to start the first pressure measurement abnormality detection program according to the difference, and select the corresponding pressure as the display pressure. By monitoring the difference between the air intake pressure and the pressure measurement pressure, and the difference between the pressure measurement pressure and the smoke exhaust pressure, it is possible to better identify the pressure monitoring abnormality caused by equipment failure during the operation, increase equipment stability, and reduce surgical risks.

[0077] The functions of each module in the pneumoperitoneum machine pressure measurement abnormality control system described in this embodiment are the same as the method steps of the pneumoperitoneum machine pressure measurement abnormality control method described in Example 1. Therefore, for the details not covered in this embodiment, please refer to Example 1 and Example 2. Figures 1 to 4The detailed description will not be repeated here.

[0078] Embodiment 3

[0079] In the third aspect, an embodiment of the present invention provides a device for controlling abnormal pressure measurement of a pneumoperitoneum machine, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein when the computer program is executed, the method steps in the method for controlling abnormal pressure measurement of a pneumoperitoneum machine in Embodiment 1 are implemented.

[0080] By storing a computer program in a memory and running it on a processor, by monitoring the changes in the difference between the intake pressure and the pressure measurement pressure, as well as the difference between the pressure measurement pressure and the smoke exhaust pressure, it is possible to better identify pressure monitoring anomalies caused by equipment failure during surgery, thereby increasing equipment stability and reducing surgical risks.

[0081] The method steps implemented when the computer program is running in the device for controlling abnormal pressure measurement of the pneumoperitoneum machine described in this embodiment correspond to the steps of the method for controlling abnormal pressure measurement of the pneumoperitoneum machine in the first aspect. For details not included in this embodiment, please refer to Embodiment 1 and Figures 1 to 4 The detailed description will not be repeated here.

[0082] Embodiment 4

[0083] For the fourth aspect, please refer to Figure 5 An embodiment of the present invention provides an insufflator, comprising an abnormal pressure measurement control device for an insufflator as in the third embodiment; an insufflator body; an internal pipeline unit, the internal pipeline unit is located inside the insufflator body, and comprises an air intake channel, a pressure measurement channel and a smoke exhaust channel, the air intake channel is connected to an air intake pump, and the smoke exhaust channel is connected to the smoke exhaust pump; a filter unit, the filter unit is connected to the insufflator body, and the air intake channel, the smoke exhaust channel and the pressure measurement channel are all connected to the filter unit; an external pipeline unit, the external pipeline unit comprises an air intake pipeline, a pressure measurement pipeline and a smoke exhaust pipeline, and the external pipeline unit is connected to the filter unit; a display unit for displaying the real-time pressure inside the insufflator; a pressure sensor unit, the pressure sensor unit comprises three groups of pressure sensor assemblies, and the three groups of pressure sensor assemblies are respectively installed in the air intake channel, the smoke exhaust channel and the pressure measurement channel; the display unit, the pressure sensor unit and the internal pipeline unit are all electrically connected to the abnormal pressure measurement control device for the insufflator.

[0084] In this embodiment, the gas enters the pneumoperitoneum from the main body of the pneumoperitoneum machine through the filter unit and the external pipeline unit. The interior of the pneumoperitoneum machine main body includes an internal pipeline unit, a pressure sensor unit, and an abnormal pressure measurement control device of the pneumoperitoneum machine. The display unit is also integrated on the main body of the pneumoperitoneum machine to provide the pressure information inside the pneumoperitoneum to the outside world. Three groups of pressure sensor components are respectively installed on the air intake channel, the smoke exhaust channel and the pressure measurement channel in the main body of the pneumoperitoneum machine. During the normal operation of the equipment, the air intake pump works so that the air intake end always has air intake. Therefore, the pressure measured by the sensor on the air intake channel, that is, the air intake pressure, is greater than the actual abdominal pressure, and the pressure measured by the sensor on the pressure measurement pipeline, that is, the pressure measurement pressure, is equal to the actual abdominal pressure. The smoke exhaust pump works so that the smoke exhaust end is always inhaling air, so the pressure measured by the sensor on the smoke exhaust pipeline, that is, the smoke exhaust pressure, is less than the actual abdominal pressure. The relationship between the three is that the air intake pressure is greater than the pressure measurement pressure, which is greater than the smoke exhaust pressure.

[0085] If the equipment is normal, the difference between the intake pressure and the pressure measurement pressure, and the difference between the pressure measurement pressure and the smoke exhaust pressure remain within a reasonable range, and the equipment can use the pressure measurement pressure to display the intra-abdominal pressure. Otherwise, it means that the equipment itself has a fault. At this time, the first pressure measurement abnormality detection program is started to identify the fault type according to the actual change of the difference, and select the pressure value that can represent the actual abdominal pressure as the displayed pressure. Generally, blockage is more likely to occur in the external pipeline unit, and air leakage or gas blowby is more likely to occur at the interface between the internal pipeline unit, the filter unit and the external pipeline unit. Although Figure 5 The filter unit is located outside the insufflator body, but what this means is that the filter unit is disposable and replaceable. It does not mean that the filter unit cannot be placed on the insufflator body. If the insufflator body is provided with a structure for placing the filter unit, then the filter unit can be placed on the structure.

[0086] In this embodiment, the pressure difference between the three groups of pressure sensors can better identify pressure monitoring anomalies caused by equipment failure during surgery, increase equipment stability, and reduce surgical risks.

[0087] Furthermore, if it is necessary to use the pressure measured by the sensor on the air inlet channel or the pressure measured by the sensor on the smoke exhaust duct as the display of the intra-abdominal pressure, the abnormal pressure measurement control device of the pneumoperitoneum machine sends an instruction to stop the air inlet pump or the smoke exhaust pump. When the air inlet pump or the smoke exhaust pump is not working, the pressure measured by the sensor on the air inlet channel or the pressure measured by the sensor on the smoke exhaust duct can represent the actual pressure in the abdominal cavity.

[0088] Furthermore, the pneumoperitoneum machine may also include an alarm unit, which can emit sound, light, text, etc. to remind the doctor to eliminate hidden dangers in time.

[0089] Optionally, the pressure sensor assembly includes two pressure sensors. In this embodiment, each pressure sensor assembly includes two pressure sensors, which ensures that when one of the pressure sensors fails, the other pressure sensors can still support the normal operation of the device and will not affect the surgical process. At the same time, the measured pressure is more reliable, which improves the stability of the device.

[0090] Similarly, for details not yet provided in this embodiment, please refer to the aforementioned embodiments 1 to 3 and Figures 1 to 4 The detailed description will not be repeated here.

[0091] Those skilled in the art will appreciate that the various operations, methods, steps, measures, and schemes discussed in the present invention may be alternated, modified, combined, or deleted. Further, other steps, measures, and schemes in the various operations, methods, and schemes discussed in the present invention may also be alternated, modified, rearranged, decomposed, combined, or deleted. Further, the steps, measures, and schemes in the prior art that are similar to those disclosed in the present invention may also be alternated, modified, rearranged, decomposed, combined, or deleted.

[0092] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0093] 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0094] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific conditions.

[0095] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for controlling abnormal pressure measurement of a pneumoperitoneum machine, characterized in that: include: Obtain intake pressure, pressure measurement pressure and exhaust pressure; Calculating the difference between the intake pressure and the pressure measurement pressure, and the difference between the pressure measurement pressure and the exhaust pressure; When the difference between the intake pressure and the pressure measurement pressure is greater than a first preset difference and less than a second preset difference, and the difference between the pressure measurement pressure and the exhaust pressure is greater than a third preset difference and less than a fourth preset difference, the pressure measurement pressure is selected as the display pressure; Otherwise, a first pressure measurement abnormality detection procedure is started, wherein the first pressure measurement abnormality detection procedure includes: When the difference between the intake pressure and the pressure measurement pressure is less than or equal to the first preset difference, and the difference between the pressure measurement pressure and the exhaust pressure is greater than the third preset difference and less than the fourth preset difference, the pressure measurement pressure is selected as the display pressure, and a first warning signal is issued; When the difference between the intake pressure and the pressure measurement pressure is less than or equal to the first preset difference, and the difference between the pressure measurement pressure and the exhaust pressure is greater than or equal to the fourth preset difference, the static pressure of the exhaust passage is selected as the display pressure, and a second warning signal is issued; When the difference between the intake pressure and the pressure measurement pressure is greater than or equal to the second preset difference, and the difference between the pressure measurement pressure and the exhaust pressure is greater than the third preset difference and less than the fourth preset difference, the pressure measurement pressure is selected as the display pressure, and a third warning signal is issued; When the difference between the intake pressure and the pressure measurement pressure is greater than or equal to the second preset difference, and the difference between the pressure measurement pressure and the exhaust pressure is less than or equal to the third preset difference, the static pressure of the intake passage is selected as the display pressure, and a fourth warning signal is issued; When the difference between the pressure measurement pressure and the exhaust pressure is less than or equal to the third preset difference, and the difference between the intake pressure and the pressure measurement pressure is greater than the first preset difference and less than the second preset difference, the pressure measurement pressure is selected as the display pressure, and a fifth warning signal is issued; When the difference between the measured pressure and the exhaust pressure is greater than or equal to the fourth preset difference, and the difference between the intake pressure and the measured pressure is greater than the first preset difference and less than the second preset difference, the measured pressure is selected as the displayed pressure and a sixth warning signal is issued.

2. The method for controlling abnormal pressure measurement of a pneumoperitoneum machine according to claim 1, characterized in that: The selecting the static pressure of the smoke exhaust passage as the display pressure comprises: acquiring the pressure of the smoke exhaust passage at a moment after a first preset time period has passed when the smoke exhaust passage stops exhausting smoke.

3. The method for controlling abnormal pressure measurement of a pneumoperitoneum machine according to claim 1, characterized in that: The selecting the static pressure of the intake passage as the display pressure comprises: acquiring the pressure of the intake passage at a moment after a second preset time period has passed when the intake passage stops taking in air.

4. The method for controlling abnormal pressure measurement of a pneumoperitoneum machine according to claim 1, characterized in that: The obtaining of the intake pressure, the pressure measurement pressure and the exhaust pressure comprises: Obtaining a first air intake pressure and a second air intake pressure, a first pressure measuring pressure and a second pressure measuring pressure, a first exhaust smoke pressure and a second exhaust smoke pressure; If the difference between the first intake pressure and the second intake pressure, the difference between the first pressure measuring pressure and the second pressure measuring pressure, and the difference between the first exhaust pressure and the second exhaust pressure are all less than or equal to the preset accuracy difference, then the average values ​​of the first intake pressure and the second intake pressure, the first pressure measuring pressure and the second pressure measuring pressure, and the first exhaust pressure and the second exhaust pressure are taken as the intake pressure, the pressure measuring pressure, and the exhaust pressure respectively; Otherwise, start the first pressure judgment procedure.

5. The method for controlling abnormal pressure measurement of a pneumoperitoneum machine according to claim 4, characterized in that: The first pressure determination procedure includes: If the difference between the first intake pressure and the second intake pressure is greater than the preset accuracy difference, a pressure value between the first intake pressure and the second intake pressure, the difference between which of the intake pressure and the measured pressure is greater than the first preset difference and less than the second preset difference, is taken as the intake pressure; If the difference between the first pressure measuring pressure and the second pressure measuring pressure is greater than the preset accuracy difference, the pressure measuring pressure between the first pressure measuring pressure and the second pressure measuring pressure is taken as the pressure measuring pressure, wherein the difference between the intake pressure and a certain pressure measuring pressure is greater than the first preset difference and less than the second preset difference, and the difference between the certain pressure measuring pressure and the exhaust pressure is greater than the third preset difference and less than the fourth preset difference; If the difference between the first smoke exhaust pressure and the second smoke exhaust pressure is greater than the preset accuracy difference, the pressure value between the first smoke exhaust pressure and the second smoke exhaust pressure, in which the difference between the measured pressure and a certain smoke exhaust pressure is greater than the first preset difference and less than the second preset difference, is taken as the smoke exhaust pressure.

6. A control system for abnormal pressure measurement of a pneumoperitoneum machine, characterized in that: The method for controlling abnormal pressure measurement of a pneumoperitoneum machine as claimed in any one of claims 1 to 5; A pressure acquisition module is used to obtain the intake pressure, pressure measurement pressure and exhaust pressure; A difference calculation module, used for calculating the difference between the intake pressure and the pressure measurement pressure, and the difference between the pressure measurement pressure and the exhaust pressure; The control module is used to determine whether to start the first pressure measurement abnormality detection program according to the difference, and select the corresponding pressure as the display pressure.

7. A device for controlling abnormal pressure measurement of a pneumoperitoneum machine, characterized in that: The method comprises a processor, a memory and a computer program stored in the memory and executable on the processor, wherein the computer program implements the method steps according to any one of claims 1 to 5 when executed.

8. A pneumoperitoneum machine, characterized in that: It comprises the abnormal pressure measurement control device of the pneumoperitoneum machine as claimed in claim 7; Insufflator body; An internal pipeline unit, the internal pipeline unit is located inside the insufflator body, and includes an air intake channel, a pressure measuring channel, and a smoke exhaust channel, the air intake channel is connected to an air intake pump, and the smoke exhaust channel is connected to a smoke exhaust pump; A filter unit, the filter unit is connected to the insufflator body, and the air intake channel, the smoke exhaust channel and the pressure measurement channel are all connected to the filter unit; An external pipeline unit, the external pipeline unit comprising an air intake pipeline, a pressure measuring pipeline and a smoke exhaust pipeline, and the external pipeline unit is connected to the filter unit; A display unit, used to display the real-time pressure in the pneumoperitoneum; A pressure sensor unit, the pressure sensor unit comprising three groups of pressure sensor components, the three groups of pressure sensor components being respectively installed in the air intake passage, the smoke exhaust passage and the pressure measuring passage; The display unit, the pressure sensor unit and the internal pipeline unit are all electrically connected to the pneumoperitoneum machine pressure measurement abnormality control device.

9. The pneumoperitoneum machine according to claim 8, characterized in that: The pressure sensor assembly includes two pressure sensors.

Images