Pneumoperitoneum machine tester

Abstract

The utility model provides a tester for a pneumoperitoneum machine, and relates to the technical field of pressure testing tools. The pneumoperitoneum machine tester comprises a water tank, a simulated pneumoperitoneum and a power mechanism, the water tank is used for containing a test solution, and an opening is formed in the top of the water tank; the simulated pneumoperitoneum is arranged in the water tank and communicated with a pneumoperitoneum machine to be tested, the bottom of the simulated pneumoperitoneum is communicated with the interior of the water tank, and a pressure gauge is arranged on the simulated pneumoperitoneum; the power mechanism is arranged above the water tank and is in transmission connection with the simulated pneumoperitoneum so as to drive the simulated pneumoperitoneum to ascend and descend in the water tank in the height direction. According to the tester for the pneumoperitoneum machine, the testing efficiency, the testing precision and the testing reliability of the pneumoperitoneum machine can be improved, and the testing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure test tooling, in particular to a pneumoperitoneum machine tester. Background Art

[0002] As one of the indispensable devices in laparoscopic surgery, the stability of the performance of the standard pneumoperitoneum machine is directly related to the surgical effect and the recovery of patients. Therefore, it is particularly important to conduct comprehensive performance tests and aging tests on the standard pneumoperitoneum machine to ensure its stable operation in various surgical environments.

[0003] In the prior art, the comprehensive performance of the pneumoperitoneum machine is generally tested or aged manually, resulting in low test efficiency, increased test costs, and the inability to guarantee test accuracy and reliability due to manual operation. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a pneumoperitoneum machine tester, which can improve the test efficiency, test accuracy and test reliability of the pneumoperitoneum machine and reduce the test cost.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The pneumoperitoneum machine tester includes:

[0007] A water tank for containing a test solution, and an opening is provided at the top of the water tank;

[0008] A simulated pneumoperitoneum is arranged in the water tank and communicated with the pneumoperitoneum machine to be tested. The bottom of the simulated pneumoperitoneum is communicated with the inside of the water tank, and a pressure gauge is arranged on the simulated pneumoperitoneum.

[0009] A power mechanism is arranged above the water tank and is in transmission connection with the simulated pneumoperitoneum to drive the simulated pneumoperitoneum to lift and lower in the water tank in the height direction.

[0010] As a further technical solution, the power mechanism includes a power component, a linkage plate and a support component. The linkage plate is fixedly arranged on the outer side wall of the simulated pneumoperitoneum. The power component is arranged above the water tank through the support component, and the power component is in transmission connection with the linkage plate.

[0011] As a further technical solution, the power component includes a rotating motor and a transmission screw. A threaded hole is arranged on the linkage plate. The rotating motor is fixedly arranged on the support component. The first end of the transmission screw is in transmission connection with the output shaft of the rotating motor, the second end extends towards the direction close to the water tank, and the middle part of the transmission screw is in threaded cooperation with the threaded hole.

[0012] As a further technical solution, the power assembly also includes a mounting seat and a mounting bearing. The support assembly is provided with a mounting channel. The mounting seat is fixedly connected to the support assembly corresponding to the mounting channel. The mounting bearing is fixedly sleeved on the transmission screw, and the outer peripheral wall of the mounting bearing abuts against the inner wall of the mounting channel or the inner wall of the avoidance channel on the mounting seat.

[0013] As a further technical solution, the transmission screw is provided in plurality, the linkage plate is provided in plurality correspondingly, and the power assembly further includes a transmission belt;

[0014] The plurality of linkage plates are connected to the outer wall of the simulated pneumoperitoneum at intervals, the first ends of the plurality of transmission screws are connected to the rotating motor through the transmission belt, and the second ends of the plurality of transmission screws are connected to the plurality of linkage plates in a one-to-one corresponding manner.

[0015] As a further technical solution, a plurality of the transmission screws are provided, and correspondingly, a plurality of the linkage plates and the rotating motors are provided, the plurality of linkage plates are connected to the outer wall of the simulated pneumoperitoneum at intervals, the first ends of the plurality of transmission screws are transmission-connected to the plurality of rotating motors in a one-to-one manner, and the second ends of the plurality of transmission screws are transmission-connected to the plurality of linkage plates in a one-to-one manner.

[0016] As a further technical solution, the power assembly includes a push rod motor, which is fixed to the support assembly. The motor shaft of the push rod motor is telescopic in the height direction and is transmission-connected to the simulated pneumoperitoneum.

[0017] As a further technical solution, the support assembly includes a support plate and a support rod, the first end of the support rod is fixedly connected to the inner side of the bottom wall of the water tank, the second end of the support rod extends in the height direction, the support plate is fixedly connected to the second end of the support rod, and the support plate and the support rod are arranged perpendicular to each other.

[0018] As a further technical solution, an air inlet connector and an air outlet connector are provided on the upper portion of the simulated pneumoperitoneum, the simulated pneumoperitoneum is connected to the pneumoperitoneum machine to be tested via the air inlet connector, and the air outlet connector is selectively connected to the simulated pneumoperitoneum.

[0019] As a further technical solution, the insufflator tester further includes a flow meter and a controller, wherein the flow meter is connected to the insufflator to be tested, and the pressure gauge and the flow meter are both communicatively connected to the controller.

[0020] Compared with the prior art, the pneumoperitoneum tester provided by the utility model has the following technical advantages:

[0021] Since a power mechanism is provided above the water tank, and the power mechanism is connected to the simulated pneumoperitoneum in a driving manner and can drive the simulated pneumoperitoneum to lift and lower in the water tank in the height direction. Therefore, when comprehensive performance testing or aging testing of the pneumoperitoneum machine to be tested is required, only the power mechanism needs to be started, without the need to manually pull the simulated pneumoperitoneum to lift and lower, so that the human operation differences in the testing process can be eliminated, thereby improving the testing accuracy and testing reliability; at the same time, by driving the simulated pneumoperitoneum to lift and lower through the power mechanism, the continuity and efficiency of the testing process can also be ensured, thereby improving the testing efficiency and reducing the testing cost. Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the description of the embodiments of the present invention. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of the present invention and these drawings.

[0023] Figure 1 is an exploded view of the pneumoperitoneum machine tester provided by the embodiment of the present invention;

[0024] Figure 2 is a cross-sectional view of the pneumoperitoneum machine tester provided by the embodiment of the present invention;

[0025] Figure 3 is a schematic structural diagram of the pneumoperitoneum machine tester provided by the embodiment of the present invention;

[0026] Figure 4 is a schematic diagram of the first state of the pneumoperitoneum machine tester provided by the embodiment of the present invention for pressure and flow rate testing;

[0027] Figure 5 is a schematic diagram of the second state of the pneumoperitoneum machine tester provided by the embodiment of the present invention for pressure and flow rate testing;

[0028] Figure 6 is a schematic diagram of the state of the pneumoperitoneum machine tester provided by the embodiment of the present invention for overpressure simulation testing;

[0029] Figure 7 is a schematic diagram of the second state of the pneumoperitoneum machine tester provided by the embodiment of the present invention for underpressure simulation testing;

[0030] Figure 8 is a schematic diagram of the state of the pneumoperitoneum machine tester provided by the embodiment of the present invention for gas consumption testing.

[0031] In the figure:

[0032] 10. Pneumoperitoneum machine to be tested;

[0033] 100. Water tank;

[0034] 200. Simulated pneumoperitoneum; 210. Pressure gauge; 220. Inlet joint; 230. Outlet joint;

[0035] 300. Power mechanism; 310. Power assembly; 311. Rotating motor; 312. Transmission screw; 313. Mounting seat; 3131. Avoidance channel; 314. Mounting bearing; 315. Transmission belt; 316. Transmission gear; 320. Linking plate; 321. Threaded hole; 330. Support assembly; 331. Support plate; 332. Support rod; 333. Support base; 301. Installation channel;

[0036] 400. Flowmeter;

[0037] 500. Controller. Detailed implementation manners

[0038] Before explaining any implementation manner of the present application in detail, it should be understood that the present application is not limited to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0039] In the present application, the terms "comprise", "include", "have" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising such element.

[0040] In the present application, the term "and / or" is an associative relationship describing associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in the present application generally represents an "and / or" relationship between the associated objects before and after.

[0041] In the present application, the terms "connect", "combine", "couple", "mount" may be direct connection, combination, coupling or mounting, or may be indirect connection, combination, coupling or mounting. Among them, by way of example, direct connection means that two parts or components are connected together without setting an intermediate member, and indirect connection means that two parts or components are respectively connected to at least one intermediate member, and these two parts or components are connected through the intermediate member. In addition, "connect" and "couple" are not limited to physical or mechanical connection or coupling, and may include electrical connection or coupling.

[0042] In this application, those of ordinary skill in the art will understand that relative terms used in connection with quantities or conditions (e.g., "about", "approximately", "substantially", etc.) are intended to include the recited value and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances resulting from manufacturing, assembly, use, etc. associated with a particular value. Such terms should also be considered to disclose a range defined by the absolute values of two endpoints. The relative term may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values that do not employ relative terms should also be disclosed as specific values with tolerances. In addition, when expressing a relative angular positional relationship (e.g., substantially parallel, substantially perpendicular), "substantially" may refer to plus or minus a certain number of degrees (e.g., 1 degree, 5 degrees, 10 degrees or more) from the indicated angle.

[0043] In this application, those of ordinary skill in the art will understand that the functions performed by a component may be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by a part may also be performed by one part, one component, or a combination of multiple parts.

[0044] In this application, the orientation terms such as "upper", "lower", "left", "right", "front", "rear", etc. are described based on the orientation and positional relationship shown in the drawings, and should not be construed as a limitation on the embodiments of this application. In addition, in the context, it should also be understood that when it is mentioned that one element is connected "above" or "below" another element, it can not only be directly connected "above" or "below" another element, but also be indirectly connected "above" or "below" another element through an intermediate element. It should also be understood that orientation terms such as upper side, lower side, left side, right side, front side, rear side, etc. not only represent the positive orientation, but can also be understood as the side orientation. For example, below may include directly below, lower left, lower right, lower front, and lower rear, etc.

[0045] Combined with Figures 1 to 8 As shown, the insufflator tester provided in this embodiment can perform comprehensive performance testing or aging testing on the insufflator 10 to be tested, so as to improve the testing efficiency, testing accuracy, and testing reliability of the insufflator 10 to be tested, and reduce the testing cost.

[0046] Embodiment 1

[0047] The pneumoperitoneum machine tester includes a water tank 100, a simulated pneumoperitoneum 200 and a power mechanism 300. The water tank 100 is used to place a test solution, and an opening is provided at the top of the water tank 100; the simulated pneumoperitoneum 200 is arranged in the water tank 100 and is connected to the pneumoperitoneum machine 10 to be tested, the bottom of the simulated pneumoperitoneum 200 is connected to the inside of the water tank 100, and a pressure gauge 210 is provided on the simulated pneumoperitoneum 200; the power mechanism 300 is arranged above the water tank 100, and is transmission-connected to the simulated pneumoperitoneum 200 to drive the simulated pneumoperitoneum 200 to rise and fall in the water tank 100 along the height direction.

[0048] The simulated pneumoperitoneum 200 is arranged in the water tank 100 through an opening. During the test process, the opening on the water tank 100 can avoid interference between the water tank 100 and the simulated pneumoperitoneum 200, and ensure the test results. Since a power mechanism 300 is arranged above the water tank 100, and the power mechanism 300 is transmission-connected with the simulated pneumoperitoneum 200, and can drive the simulated pneumoperitoneum 200 to rise and fall in the water tank 100 along the height direction. Therefore, when it is necessary to perform a comprehensive performance test or an aging test on the pneumoperitoneum machine 10 to be tested, it is only necessary to start the power mechanism 300, without manually pulling the simulated pneumoperitoneum 200 to rise and fall, thereby eliminating the differences in human operation during the test process, thereby improving the test accuracy and test reliability; at the same time, by driving the simulated pneumoperitoneum 200 to rise and fall through the power mechanism 300, the continuity and efficiency of the test process can also be guaranteed, thereby improving the test efficiency and reducing the test cost.

[0049] Preferably, the power mechanism 300 includes a power assembly 310, a linkage plate 320 and a support assembly 330, wherein the linkage plate 320 is fixedly arranged on the outer side wall of the simulated pneumoperitoneum 200, the power assembly 310 is arranged above the water tank 100 through the support assembly 330, and the power assembly 310 is transmission-connected to the linkage plate 320. The power assembly 310 and the linkage plate 320 cooperate with each other to reduce the connection difficulty between the power assembly 310 and the simulated pneumoperitoneum 200, and improve the connection strength and connection stability between the two, thereby ensuring the lifting effect of the simulated pneumoperitoneum 200 when the power assembly 310 is in operation. By setting the support assembly 330, the installation strength and installation stability of the power assembly 310 are ensured, thereby ensuring the transmission effect of the simulated pneumoperitoneum 200.

[0050] like Figure 1 and Figure 2 As shown, in order to further improve the connection effect between the power assembly 310 and the simulated pneumoperitoneum 200, in this embodiment, the linkage plate 320 is set as a "⊥"-shaped plate, the horizontal plate of the linkage plate 320 is fixedly connected to the outer peripheral wall of the simulated pneumoperitoneum 200, and the vertical plate of the linkage plate 320 is transmission-connected to the power assembly 310. In some other embodiments, the linkage plate 320 is set as an "L"-shaped plate.

[0051] Specifically, the power assembly 310 includes a rotating motor 311 and a transmission screw 312. A threaded hole 321 is provided on the linkage plate 320. The rotating motor 311 is fixedly arranged on the support assembly 330. The first end of the transmission screw 312 is drivingly connected to the output shaft of the rotating motor 311, and the second end extends towards the water tank 100. The middle part of the transmission screw 312 is in threaded cooperation with the threaded hole 321.

[0052] To avoid interference between the rotating motor 311 and the simulated pneumoperitoneum 200, the rotating motor 311 is arranged on the side of the support assembly 330 away from the water tank 100. The first end of the transmission screw 312 passes through the installation channel 301 and is drivingly connected to the output shaft of the rotating motor 311. Since the middle part of the transmission screw 312 is in threaded cooperation with the threaded hole 321, on the one hand: when the simulated pneumoperitoneum 200 is connected to the air insufflator 10 to be tested, when the simulated pneumoperitoneum 200 needs to rise or fall in the water tank 100, the rotating motor 311 is started. The output shaft of the rotating motor 311 rotates to drive the transmission screw 312 to rotate. During the rotation of the transmission screw 312, the thread on the transmission screw 312 cooperates with the thread on the inner wall of the threaded hole 321, thereby changing the relative position between the linkage plate 320 and the transmission screw 312, and further realizing the change of the relative position of the simulated pneumoperitoneum 200 in the water tank 100, that is, realizing the rise or fall of the simulated pneumoperitoneum 200 in the water tank 100, so as to ensure the test accuracy and test reliability. On the other hand: during the rise or fall of the simulated pneumoperitoneum 200 in the water tank 100, through the cooperation of the threaded hole 321 and the transmission screw 312, it can be ensured that the simulated pneumoperitoneum 200 always rises or falls in the water tank 100 along the established route, thereby avoiding situations such as lateral displacement during the rise or fall of the simulated pneumoperitoneum 200, and further improving the test accuracy and test reliability.

[0053] Furthermore, the power assembly 310 further includes a mounting seat 313 and a mounting bearing 314. An installation channel 301 is provided on the support assembly 330. The mounting seat 313 is fixedly connected to the support assembly 330 corresponding to the installation channel 301. The mounting bearing 314 is fixedly sleeved on the transmission screw 312, and the outer peripheral wall of the mounting bearing 314 abuts against the inner wall of the installation channel 301 or the inner wall of the avoidance channel 3131 on the mounting seat 313.

[0054] Specifically combined Figure 1 and Figure 2As shown in the figure, in this embodiment, for the same driving screw 312, two mounting seats 313 and mounting bearings 314 are provided. One of the mounting seats 313 is fixedly arranged on the inner side of the bottom wall of the water tank 100, and the second end of the driving screw 312 is rotatably connected to this mounting seat 313 through one of the mounting bearings 314; the other mounting seat 313 is fixedly connected to the support assembly 330 corresponding to the mounting channel 301, and the other mounting bearing 314 is sleeved on the driving screw 312 and is arranged near the first end of the driving screw 312, and this mounting bearing 314 abuts against the inner wall of the avoidance channel 3131 on this mounting seat 313; the first end of the driving screw 312 passes through the mounting channel 301 and is in transmission connection with the output shaft of the rotating motor 311. With such a setting, while ensuring the transmission effect between the rotating motor 311 and the driving screw 312, the relative positions between the driving screw 312 and the support assembly 330, the rotating motor 311 and the simulated pneumoperitoneum 200 are restricted, thereby further improving the test accuracy and test reliability.

[0055] In some other embodiments, only one mounting seat 313 and one mounting bearing 314 can also be provided. The mounting seat 313 is fixedly connected to the support assembly 330 corresponding to the mounting channel 301, the mounting bearing 314 is fixedly sleeved on the driving screw 312, the first end of the driving screw 312 passes through the mounting channel 301 and is in transmission connection with the output shaft of the rotating motor 311, and the second end of the driving screw 312 is set as a free end extending towards the bottom of the water tank 100. Or, the mounting seat 313 is not provided, and only the mounting bearing 314 is provided. The mounting bearing 314 is sleeved on the driving screw 312 and is arranged near the first end of the driving screw 312, and this mounting bearing 314 abuts against the inner wall of the mounting channel 301. The number of the mounting seats 313 and the mounting bearings 314 and the mounting manner are selected according to actual needs, as long as the technical purpose of ensuring the transmission effect between the rotating motor 311 and the driving screw 312 and restricting the relative positions between the driving screw 312 and the support assembly 330, the rotating motor 311 and the simulated pneumoperitoneum 200 can be achieved.

[0056] Preferably, a plurality of driving screws 312 are provided, and a plurality of linkage plates 320 are correspondingly provided. The power assembly 310 further includes a transmission belt 315; a plurality of linkage plates 320 are spaced and connected to the outer side wall of the simulated pneumoperitoneum 200, the first ends of the plurality of driving screws 312 are all in transmission connection with the rotating motor 311 through the transmission belt 315, and the second ends of the plurality of driving screws 312 are in one-to-one correspondence and in transmission connection with the plurality of linkage plates 320.

[0057] Combined with Figure 1 and Figure 3As described above, in this embodiment, two linkage plates 320 are provided. The two linkage plates 320 are respectively arranged on two opposite outer walls of the simulated pneumoperitoneum 200 and are symmetrically arranged with respect to the midline of the simulated pneumoperitoneum 200. Correspondingly, two transmission screws 312 are provided. The second ends of the two transmission screws 312 are respectively and drivingly connected to the two linkage plates 320. Transmission gears 316 are arranged at the first ends of the two transmission screws 312. A transmission gear 316 is also arranged on the output shaft of the rotation motor 311. The transmission belt 315 is arranged in a ring shape and has transmission teeth on the inner side. The transmission belt 315 is drivingly connected to the three transmission gears 316 through the transmission teeth. Thus, during the test, one rotation motor 311 can drive the two transmission screws 312 to rotate synchronously, so as to realize the synchronous rise or fall of all parts of the simulated pneumoperitoneum 200, ensure the transmission effect on the simulated pneumoperitoneum 200, and improve the stability of the simulated pneumoperitoneum 200 when rising or falling.

[0058] In some other embodiments, in addition to gear transmission, belt transmission can also be adopted between the multiple transmission screws 312 and the same rotation motor 311. Or, the number of the linkage plates 320 and the transmission screws 312 can be appropriately increased or decreased according to actual needs.

[0059] Or, a plurality of transmission screws 312 are provided. Correspondingly, a plurality of linkage plates 320 and rotation motors 311 are both provided. The plurality of linkage plates 320 are connected to the outer wall of the simulated pneumoperitoneum 200 at intervals. The first ends of the plurality of transmission screws 312 are respectively and drivingly connected to the plurality of rotation motors 311, and the second ends of the plurality of transmission screws 312 are respectively and drivingly connected to the plurality of linkage plates 320. When it is necessary to make the simulated pneumoperitoneum 200 rise or fall in the water tank 100, the plurality of rotation motors 311 rotate synchronously, so as to realize the synchronous rise or fall of all parts of the simulated pneumoperitoneum 200. In order to further improve the synchronism of all parts of the simulated pneumoperitoneum 200 when rising or falling, the plurality of rotation motors 311 are controlled to operate by the same controller 500, and angle sensors are arranged on the plurality of rotation motors 311 to respectively sense the rotation angles of the output shafts of the corresponding rotation motors 311. During the same rising or falling process, when the rotation angles of any two rotation motors 311 are different, the angle sensors give a prompt, so that the operator can timely repair the corresponding rotation motor 311.

[0060] Further, the support assembly 330 includes a support plate 331 and a support rod 332. The first end of the support rod 332 is fixedly connected to the inner side of the bottom wall of the water tank 100. The second end of the support rod 332 extends in the height direction. The support plate 331 is fixedly connected to the second end of the support rod 332, and the support plate 331 is perpendicular to the support rod 332.

[0061] Combined with Figure 1 and Figure 2As shown, both ends of the support rod 332 are fixedly arranged on the inner side of the bottom wall of the support plate 331 and the water tank 100 through the support bases 333 respectively. While improving the installation convenience of the support plate 331, the connection strength and connection stability of the support plate 331 are improved, so as to ensure the support effect on the rotation motor 311, and further ensure the rising or falling effect of the simulated pneumoperitoneum 200. In addition, in this embodiment, in order to further improve the connection strength and connection stability of the support plate 331, four support rods 332 are provided, and the four support rods 332 are evenly spaced along the circumferential direction of the support plate 331.

[0062] Preferably, an air inlet joint 220 and an air outlet joint 230 are arranged on the upper part of the simulated pneumoperitoneum 200. The simulated pneumoperitoneum 200 is communicated with the pneumoperitoneum machine 10 to be tested through the air inlet joint 220 to ensure the communication effect between the pneumoperitoneum machine 10 to be tested and the simulated pneumoperitoneum 200, and improve the communication convenience between the two. The air outlet joint 230 is selectively conducted with the simulated pneumoperitoneum 200, so that the air outlet joint 230 can be conducted according to actual needs, so as to complete the test process of the pneumoperitoneum machine 10 to be tested by deflation assistance.

[0063] Preferably, the pneumoperitoneum machine tester further includes a flow meter 400 and a controller 500. The flow meter 400 is communicated with the pneumoperitoneum machine 10 to be tested, and both the pressure gauge 210 and the flow meter 400 are communicatively connected to the controller 500.

[0064] Combined with Figure 3 As shown, the pressure gauge 210 is arranged on the simulated pneumoperitoneum 200 to master the air pressure value in the simulated pneumoperitoneum 200 during the test stage; the pneumoperitoneum machine 10 to be tested is conducted with both the air inlet joint 220 and the flow meter 400 through a three-way pipe, and the air volume filled into the simulated pneumoperitoneum 200 by the pneumoperitoneum machine 10 to be tested during the test stage is mastered through the flow meter 400; a display screen is arranged on the controller 500. The pressure gauge 210 and the flow meter 400 are both communicatively connected to the controller 500. The pressure gauge 210 and the flow meter 400 feed back the monitored pressure and air volume in the simulated pneumoperitoneum 200 to the controller 500. The controller 500 analyzes the data according to the information fed back by the pressure gauge 210 and the flow meter 400, and forms an analysis report to be displayed on the display screen. The operator can master the test simulation conditions of the pneumoperitoneum machine 10 to be tested in different states by observing the display screen. Since the controller 500 automatically generates a report, the calculation error can be further reduced, thus ensuring the test accuracy.

[0065] Embodiment 2

[0066] In this embodiment, the water tank 100, simulated pneumoperitoneum 200, linkage plate 320 and support assembly 330 of the pneumoperitoneum machine tester are exactly the same as those in the first embodiment, and are not described in detail here. The difference is that the power assembly 310 includes a push rod motor, which is fixedly arranged on the support assembly 330, and the motor shaft of the push rod motor is extended and retracted in the height direction and is connected to the simulated pneumoperitoneum 200. A linkage plate 320 is fixedly arranged on the outer peripheral wall of the simulated pneumoperitoneum 200, and the motor shaft of the push rod motor is fixedly connected to the linkage plate 320. When the pneumoperitoneum machine 10 to be tested is tested, the push rod motor starts to run, and as the motor shaft of the push rod motor is extended and retracted in the height direction, the simulated pneumoperitoneum 200 can be driven to rise and fall in the water tank 100, thereby completing the simulation of the corresponding state of the pneumoperitoneum machine 10 to be tested.

[0067] The insufflator testers in the above embodiments can all test the insufflator 10 to be tested, as follows:

[0068] Pressure and flow testing

[0069] Initially, the liquid level in the simulated pneumoperitoneum 200 is flush with the liquid level in the water tank 100. Figure 4 As shown; after the pneumoperitoneum machine 10 to be tested is working, the gas is filled to discharge part of the liquid in the simulated pneumoperitoneum 200, and the liquid level in the simulated pneumoperitoneum 200 forms a liquid level difference with the liquid level in the water tank 100. The initial simulated pneumoperitoneum 200 is lower than the liquid level in the water tank 100, such as Figure 5 shown.

[0070] The pneumoperitoneum machine tester collects data from the pressure gauge 210 and the flow meter 400, and generates an analysis report after analysis and calculation.

[0071] Overvoltage simulation

[0072] When the pressure of the pneumoperitoneum machine 10 to be tested is stabilized, the power assembly 310 operates to drive the simulated pneumoperitoneum 200 to descend. Figure 6 As shown; increase the pressure in the simulated pneumoperitoneum 200 to simulate an overpressure state, thereby testing the overpressure alarm and overpressure release function of the pneumoperitoneum machine 10 to be tested.

[0073] Undervoltage simulation

[0074] When the pressure of the pneumoperitoneum machine 10 to be tested is stabilized, the power assembly 310 operates to drive the simulated pneumoperitoneum 200 to rise. Figure 7 As shown; reduce the pressure within the large simulated pneumoperitoneum 200 to simulate an underpressure state, thereby testing the underpressure supplement function of the pneumoperitoneum machine 10 to be tested.

[0075] Gas consumption test

[0076] When the pressure of the pneumoperitoneum machine 10 to be tested is stabilized, the pneumoperitoneum machine 10 to be tested is turned off, and the power assembly 310 is operated to drive the simulated pneumoperitoneum 200 to rise.Figure 8 As shown; by detecting the pressure gauge 210, the pressure in the simulated pneumoperitoneum 200 is made equal to the atmospheric pressure. At this time, the liquid level in the simulated pneumoperitoneum 200 is close to the liquid level in the water tank 100. The volume of gas in the simulated pneumoperitoneum 200 is calculated based on the displacement value of the linkage plate 320, and the gas consumption is calculated.

[0077] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A pneumoperitoneum machine tester, characterized in that, Comprising: A water tank (100) for containing a test solution, an opening being provided at the top of the water tank (100); A simulated pneumoperitoneum (200) disposed within the water tank (100) and communicating with a pneumoperitoneum machine (10) to be tested, the bottom of the simulated pneumoperitoneum (200) communicating with the interior of the water tank (100), and a pressure gauge (210) being provided on the simulated pneumoperitoneum (200); A power mechanism (300) disposed above the water tank (100) and drivingly connected to the simulated pneumoperitoneum (200) to drive the simulated pneumoperitoneum (200) to move up and down within the water tank (100) in the height direction.

2. The insufflator tester according to claim 1, wherein The power mechanism (300) includes a power component (310), a linkage plate (320) and a support component (330), the linkage plate (320) being fixedly disposed on the outer sidewall of the simulated pneumoperitoneum (200), the power component (310) being disposed above the water tank (100) through the support component (330), and the power component (310) being drivingly connected to the linkage plate (320).

3. The insufflator tester according to claim 2, wherein, The power component (310) includes a rotating motor (311) and a transmission screw (312), a threaded hole (321) being provided on the linkage plate (320), the rotating motor (311) being fixedly disposed on the support component (330), a first end of the transmission screw (312) being drivingly connected to the output shaft of the rotating motor (311), a second end extending towards the direction close to the water tank (100), and the middle part of the transmission screw (312) being in threaded engagement with the threaded hole (321).

4. The insufflator tester according to claim 3, characterized in that, The power component (310) further includes a mounting seat (313) and a mounting bearing (314), a mounting channel (301) being provided on the support component (330), the mounting seat (313) being fixedly connected to the support component (330) corresponding to the mounting channel (301), the mounting bearing (314) being fixedly sleeved on the transmission screw (312), and the outer peripheral wall of the mounting bearing (314) abutting against the inner wall of the mounting channel (301) or the inner wall of an avoidance channel (3131) on the mounting seat (313).

5. The insufflator tester according to claim 3, characterized in that, A plurality of the transmission screws (312) are provided, a plurality of the linkage plates (320) are correspondingly provided, and the power component (310) further includes a transmission belt (315); A plurality of the linkage plates (320) are spaced and connected to the outer sidewall of the simulated pneumoperitoneum (200), a first end of each of the plurality of the transmission screws (312) is drivingly connected to the rotating motor (311) through the transmission belt (315), and a second end of each of the plurality of the transmission screws (312) is drivingly connected to one of the plurality of the linkage plates (320) correspondingly.

6. The insufflator tester according to claim 3, wherein A plurality of the transmission screws (312) are provided. Correspondingly, a plurality of the linkage plates (320) and a plurality of the rotating motors (311) are provided. The plurality of the linkage plates (320) are spaced and connected to the outer side wall of the simulated pneumoperitoneum (200). The first ends of the plurality of the transmission screws (312) are respectively and drivingly connected to the plurality of the rotating motors (311), and the second ends of the plurality of the transmission screws (312) are respectively and drivingly connected to the plurality of the linkage plates (320).

7. The insufflator tester according to claim 2, wherein, The power assembly (310) includes a push rod motor which is fixedly arranged on the support assembly (330). The motor shaft of the push rod motor telescopically extends in the height direction and is drivingly connected to the simulated pneumoperitoneum (200).

8. The insufflator tester according to claim 2, wherein, The support assembly (330) includes a support plate (331) and a support rod (332). The first end of the support rod (332) is fixedly connected to the inner bottom wall of the water tank (100). The second end of the support rod (332) extends in the height direction. The support plate (331) is fixedly connected to the second end of the support rod (332), and the support plate (331) and the support rod (332) are arranged perpendicular to each other.

9. The insufflator tester according to claim 1, characterized in that, An air inlet joint (220) and an air outlet joint (230) are arranged on the upper part of the simulated pneumoperitoneum (200). The simulated pneumoperitoneum (200) is communicated with the pneumoperitoneum machine to be tested (10) through the air inlet joint (220), and the air outlet joint (230) is selectively communicated with the simulated pneumoperitoneum (200).

10. The insufflator tester according to any one of claims 1-9, characterized in that, The pneumoperitoneum machine tester further includes a flow meter (400) and a controller (500). The flow meter (400) is communicated with the pneumoperitoneum machine to be tested (10). The pressure gauge (210) and the flow meter (400) are both communicatively connected to the controller (500).

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