Pressure adjustment testing apparatus, method and system for uterine distension devices

Abstract

The present application relates to the technical field of medical equipment, in particular to a pressure adjustment testing device, method and system for uterine distension device. The testing device comprises a testing container, a floating unit and a pressurizing device. The testing container has a containing cavity for containing testing liquid. The floating unit is arranged in the testing liquid in the containing cavity of the testing container. The pressurizing device is used for applying pressure to the floating unit. The pressurizing device comprises a liquid-filling pressurizing mechanism for applying pressure to the floating unit, and a liquid-discharging mechanism in communication with the liquid-filling pressurizing mechanism. The present application can solve the problem that most uterine distension operations in the prior art do not perform relevant uterine distension pressure testing.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a pressure adjustment testing device, method and system for a uterine distension device. Background Technology

[0002] With the development of medical technology and the widespread application of endoscopic techniques, hysteroscopic surgery has also evolved, with the overall trend towards greater safety, non-invasiveness or minimally invasiveness, and higher efficiency. Before hysteroscopic surgery, distending fluid is injected into the uterus to fill the uterine cavity and create a surgical operating space and field of vision. During the surgery, tumors and polyps in the uterus are removed using a shaving handle, while waste fluid and removed tissue are expelled from the body through negative pressure suction. During this process, some of the distending fluid is absorbed by the body, so it is necessary to continuously inject distending fluid into the uterus to maintain the uterine cavity pressure at a preset value.

[0003] In traditional techniques, a distending device is typically used to replenish the uterine cavity with distending fluid to maintain a set pressure throughout the procedure. This constant pressure is crucial throughout the entire procedure. If the pressure fluctuates due to external forces or leakage, excessively high pressure over a certain period can compromise patient safety, while excessively low pressure can hinder the procedure and potentially cause safety hazards. Therefore, the distending device needs to rapidly restore the pressure to the set value within a very short time. To ensure rapid pressure balance during distension and to prevent overfilling or impact on the uterine wall, the pressure adjustment process of the distending device needs to be tested for accurate pressure control. However, currently, most distension procedures do not include this pressure testing. Summary of the Invention

[0004] This invention provides a pressure adjustment testing device, method, and system for uterine distension devices, which can solve the problem that most uterine distension surgeries in traditional technology do not perform relevant uterine distension pressure tests.

[0005] This invention provides a pressure adjustment testing device for uterine distension devices, comprising:

[0006] A test container having a cavity for holding the test liquid;

[0007] A floating unit for floating in the test liquid disposed in the receiving cavity; and,

[0008] A pressurizing device is used to apply pressure to the floating unit;

[0009] The pressurizing device includes a liquid filling and pressurizing mechanism for applying pressure to the floating unit, and a liquid draining mechanism connected to the liquid filling and pressurizing mechanism.

[0010] Optionally, the floating unit has a float cavity, and the liquid filling and pressurizing mechanism is used to directly or indirectly fill and pressurize the float cavity.

[0011] Optionally, the liquid filling and pressurizing mechanism includes a liquid inlet structure and a liquid pressurizing structure connected to the liquid inlet structure. The liquid pressurizing structure cooperates with the floating unit and is used to apply pressure to the floating unit.

[0012] Optionally, the liquid pressurization structure includes a hydraulic cylinder structure disposed on the test container and a pressure sensor disposed on the hydraulic cylinder structure. The liquid discharge mechanism and the liquid inlet structure are both connected to the hydraulic cylinder structure, and the hydraulic cylinder structure abuts against the floating unit.

[0013] Optionally, the liquid inlet structure includes a first pump body and a liquid inlet pipe connecting the first pump body and the hydraulic cylinder structure;

[0014] The hydraulic cylinder structure includes a piston cylinder mounted on the test container and a piston rod movably mounted in the piston cylinder, the end of which abuts against the top surface of the floating unit.

[0015] Optionally, the drainage mechanism includes a liquid self-drainage structure connected to the liquid pressurization structure; or / and,

[0016] The drainage mechanism includes a liquid suction structure connected to the liquid pressurization structure.

[0017] Optionally, the test container includes a container body having the receiving cavity, the top of the container body having a container opening, and the floating unit floatingly disposed at the container opening;

[0018] The test container includes a mounting bracket protruding from the top of the container body, and the liquid pressurization structure is fixed to the mounting bracket.

[0019] Optionally, the floating unit is configured as a rigid float with a floating cavity, the rigid float is disposed at the container opening of the container body, and the liquid pressurization structure is correspondingly matched with the rigid float.

[0020] Furthermore, this invention also proposes a pressure adjustment test method for an uterine distension device, applied to a pressure adjustment test equipment for an uterine distension device; the pressure adjustment test equipment for the uterine distension device includes a test container with a receiving cavity, a floating unit for floating in a test liquid in the receiving cavity, and a pressurizing device for applying pressure to the floating unit; the pressurizing device includes a liquid filling and pressurizing mechanism for applying pressure to the floating unit, and a liquid draining mechanism connected to the liquid filling and pressurizing mechanism, wherein a pressure sensor is provided on the liquid filling and pressurizing mechanism;

[0021] The method includes:

[0022] The control liquid filling and pressurization mechanism pressurizes any floating unit located in the test container by filling liquid, so that the pressure value acting on the floating unit reaches a preset constant pressure value;

[0023] The liquid discharge mechanism is controlled to discharge the liquid from the filling and pressurizing mechanism or the floating unit according to the preset discharge volume, and the current pressure value of the filling and pressurizing mechanism acting on the floating unit is obtained in real time.

[0024] Based on the difference between the current pressure value and the preset constant pressure value, the filling and pressurizing mechanism is controlled to continue filling, so that the pressure value applied by the filling and pressurizing mechanism to the floating unit reaches the preset constant pressure value again.

[0025] Optionally, the liquid filling and pressurizing mechanism includes a liquid inlet structure and a liquid pressurizing structure connected to the liquid inlet structure, wherein the liquid pressurizing structure corresponds to and cooperates with the floating unit;

[0026] The controlled liquid filling and pressurization mechanism pressurizes any floating unit located in the test container by liquid filling, so that the pressure value acting on the floating unit reaches a preset constant pressure value, including:

[0027] The liquid inlet structure is controlled to deliver liquid to the liquid pressurization structure, and the real-time pressure value of the liquid pressurization structure acting on any floating unit is obtained in real time.

[0028] When the real-time pressure value is detected to reach the preset constant pressure value, it is determined that the pressure value exerted by the liquid pressurization structure on the floating unit has reached the preset constant pressure value.

[0029] Optionally, the drainage mechanism includes a liquid self-drainage structure connected to the liquid pressurization structure; or / and,

[0030] The drainage mechanism includes a liquid suction structure connected to the liquid pressurization structure;

[0031] The controlled drainage mechanism discharges liquid from the filling and pressurizing mechanism or the floating unit according to a preset drainage volume, including:

[0032] The liquid self-draining structure of the control drainage mechanism continuously discharges liquid from the liquid pressurization structure or the floating unit according to a preset fixed self-draining flow rate; or / and,

[0033] The liquid suction structure of the control drainage mechanism discharges the liquid from the liquid pressurization structure or the floating unit according to a preset suction discharge flow rate.

[0034] Optionally, controlling the filling and pressurizing mechanism to continue filling with liquid based on the difference between the current pressure value and the preset constant pressure value, so that the pressure value exerted by the filling and pressurizing mechanism on the floating unit reaches the preset constant pressure value again, includes:

[0035] When there is a difference between the current pressure value and the preset constant pressure value, the liquid inlet structure is controlled to adjust the flow rate of the expansion fluid delivered to the liquid pressurization structure, so that the pressure value of the liquid filling and pressurization mechanism acting on the floating unit reaches the preset constant pressure value again.

[0036] Furthermore, this invention also proposes a pressure adjustment testing system for an uterine distension device, applied to a pressure adjustment testing equipment for an uterine distension device; the pressure adjustment testing equipment for the uterine distension device includes a test container with a receiving cavity, a floating unit for floating in a test liquid in the receiving cavity, and a pressurizing device for applying pressure to the floating unit; the pressurizing device includes a liquid filling and pressurizing mechanism for applying pressure to the floating unit, and a liquid draining mechanism connected to the liquid filling and pressurizing mechanism, wherein a pressure sensor is provided on the liquid filling and pressurizing mechanism;

[0037] The system includes:

[0038] The first liquid inlet control module is used to control the liquid filling and pressurizing mechanism to pressurize any floating unit located in the test container by liquid filling, so that the pressure value acting on the floating unit reaches a preset constant pressure value.

[0039] The liquid discharge control module is used to control the liquid discharge mechanism to discharge the liquid from the filling and pressurizing mechanism or the floating unit according to the preset liquid discharge volume, and to obtain the current pressure value of the filling and pressurizing mechanism acting on the floating unit in real time.

[0040] The second liquid inlet control module is used to control the liquid filling and pressurizing mechanism to continue filling the liquid according to the difference between the current pressure value and the preset constant pressure value, so that the pressure value of the liquid filling and pressurizing mechanism acting on the floating unit can reach the preset constant pressure value again.

[0041] The beneficial effects of the technical solution provided by this invention include:

[0042] The pressure adjustment testing device for a uterine distension apparatus provided by this invention uses a floating unit suspended in the cavity of a test container. The floating unit's buoyancy changes simulate pressure changes in the uterine cavity during distension. Specifically, a liquid-filling and pressurizing mechanism of the pressurizing device fills the floating unit in the cavity of the test container with liquid, pressurizing it to reach a set equilibrium pressure. This simulates the situation during hysteroscopic surgery where distension fluid is infused into the uterus to achieve a set equilibrium pressure. Furthermore, a draining mechanism can discharge the liquid from the filling and pressurizing mechanism to simulate the outflow of distension fluid from the uterus during surgery. Simultaneously, after a pressure change in the floating unit, the pressure can be restored to the set equilibrium pressure by adjusting the filling and pressurizing mechanism.

[0043] In this way, the pressure adjustment process of the uterine expansion device can be simulated and tested using the pressure adjustment test equipment. The buoyancy of the floating unit can change significantly with the change of the pressure it receives. This test can determine whether the uterine expansion device can restore the pressure to the set value within a specified time after the pressure changes, thus ensuring that the uterine expansion device will not cause a safety accident due to pressure changes during the expansion process. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a simplified structural diagram of the pressure adjustment testing device for the uterine expansion apparatus described in this embodiment of the invention. Figure 1 ;

[0046] Figure 2 This is a simplified structural diagram of the pressure adjustment testing equipment for the uterine expansion device described in an embodiment of the present invention;

[0047] Figure 3 This is a schematic flowchart of the pressure adjustment test method for the uterine expansion device described in an embodiment of the present invention;

[0048] Figure 4 This is a simplified structural block diagram of the pressure adjustment test system of the uterine expansion device described in an embodiment of the present invention;

[0049] Figure 5 This is a simplified structural diagram of the pressure adjustment testing device for the uterine expansion apparatus described in this embodiment of the invention. Figure 2 .

[0050] In the diagram: 1. Pressure adjustment test equipment for the uterine expansion device; 10. Test container; 11. Receiving cavity; 12. Container body; 122. Container shell; 124. Container cover; 13. Container opening; 14. Mounting frame; 20. Floating unit; 22. Floating body cavity; 24. Main cylinder; 26. Cylinder protrusion; 30. Liquid pressurization structure; 31. Pressure sensor; 32. Piston cylinder; 34. Piston rod; 40. Liquid inlet structure; 42. First pump body; 44. Liquid inlet pipe; 50. Liquid discharge mechanism; 52. Liquid discharge pipe; 54. Second pump body; 56. Liquid outlet pipe; 57. Flow sensor; 58. Liquid discharge valve; 60. Controller; 100. Pressure adjustment test system for the uterine expansion device; 110. First liquid inlet control module; 120. Liquid discharge control module; 130. Second liquid inlet control module. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] In traditional techniques, a distending device is typically used to replenish the uterine cavity with distending fluid to maintain a set pressure throughout the procedure. This constant pressure is crucial throughout the entire procedure. If the pressure fluctuates due to external forces or leakage, excessively high pressure over a certain period can compromise patient safety, while excessively low pressure can hinder the procedure and potentially cause safety hazards. Therefore, the distending device needs to rapidly restore the pressure to the set value within a very short time. To ensure rapid pressure balance during distension and prevent overfilling or impact on the uterine wall, the pressure adjustment process of the distending device needs to be tested for accurate pressure control. However, most distension surgeries currently do not include this pressure testing. To address these technical issues, this invention proposes a pressure adjustment testing device, method, and system for a distending device.

[0053] Example 1

[0054] like Figure 1 and Figure 2As shown, this embodiment provides a pressure adjustment testing device 1 for an uterine distension device, including a test container 10, a floating unit 20, and a pressurizing device. The test container 10 has a receiving cavity 11 for holding test fluid, and the floating unit 20 is floatably disposed within the receiving cavity 11. Furthermore, the pressurizing device is disposed on the test container 10 and corresponds to and cooperates with the floating unit 20. The pressurizing device may include a filling and pressurizing mechanism disposed on the test container 10 for applying pressure to the floating unit 20, and a draining mechanism 50 communicating with the filling and pressurizing mechanism.

[0055] The pressure adjustment testing device for the uterine distension device provided in this embodiment uses a floating unit 20 floating in the receiving cavity of the test container. The floating unit 20 can simulate the pressure change of the uterine cavity during distension by changing the buoyancy it experiences. Specifically, the liquid filling and pressurizing mechanism of the pressurizing device fills the floating unit 20 floating in the receiving cavity 11 of the test container 10 with liquid, so that the pressure acting on the floating unit 20 reaches the set equilibrium pressure, simulating the situation of uterine distension fluid being infused into the uterus during hysteroscopic surgery to bring the uterine cavity pressure to the set equilibrium pressure. Moreover, the liquid filled by the liquid filling and pressurizing mechanism can be discharged outward through the drainage mechanism 50 to simulate the outflow of distension fluid from the uterus during surgery. At the same time, after the pressure of the floating unit changes, the pressure can be restored to the set equilibrium pressure by adjusting the liquid filling and pressurizing mechanism. In this way, the pressure adjustment process of the uterine expansion device can be simulated and tested using the pressure adjustment test equipment. The buoyancy of the floating unit can change significantly with the change of the pressure it receives. This test can determine whether the uterine expansion device can restore the pressure to the set value within a specified time after the pressure changes, thus ensuring that the uterine expansion device will not cause a safety accident due to pressure changes during the expansion process.

[0056] Specifically, such as Figure 2 As shown, the test container 10 may include a container body 12 with a receiving cavity 11, and a container opening 13 is provided at the top of the container body 12. The container opening 13 can communicate with the receiving cavity 11 of the container body 12, so as to facilitate the injection of test liquid into the receiving cavity 11 of the container body 12 through the container opening 13; it also facilitates the floating unit 20 to be floatingly disposed at the container opening 13, and the floating unit 20 can be limited by the container opening 13 to prevent it from moving randomly.

[0057] Furthermore, the container body 12 may include a cylindrical container shell 122 with one end closed and the other end open, and a container lid 124 covering the open end of the container shell 122, with the container opening 13 located on the container lid 124. Moreover, the container lid 124 may be located at the top of the container shell 122 or in the middle of the container shell 122. Further still, the container shell 122 may be a cylindrical shell, a square shell, or a cylindrical shell of other shapes. Furthermore, the container shell 122 and the container lid 124 may be integral (i.e., directly manufactured as a single structure, or separately manufactured and then connected (e.g., fused or welded)), or they may be connected in a detachable manner. A certain volume of test liquid may be injected into the container body 12, ensuring that when the floating unit 20 is immersed in the test liquid in the container body 12, the test liquid does not overflow outside the container lid 124.

[0058] Furthermore, the container body 12 may consist only of a cylindrical container shell 122 that is closed at one end and open at the other, i.e., without a container lid 124. In this case, the opening of the container body 12 directly forms the container opening 13.

[0059] Furthermore, the test container 10 may also include a mounting bracket 14 protruding from the top of the container body 12, and the liquid filling and pressurizing mechanism may be fixed on the mounting bracket 14. By fixing the liquid filling and pressurizing mechanism on the test container 10, the liquid filling and pressurizing mechanism will not produce deflection displacement when liquid is filled and pressurized by the liquid filling and pressurizing mechanism, so that the process of the liquid filling and pressurizing mechanism applying pressure to the floating unit 20 is stable and reliable.

[0060] Furthermore, the mounting bracket 14 may include a mounting plate that protrudes laterally or obliquely from the top of the inner wall of the container shell 122, the mounting plate being positioned above the container opening 13. Moreover, a liquid filling and pressurizing mechanism may be suspended on the mounting plate, allowing the liquid filling and pressurizing mechanism to apply pressure to the floating unit 20 located at the container opening 13.

[0061] In addition, the mounting bracket 14 may also include a vertical mounting rod that protrudes vertically or obliquely from the top of the container shell 122, and a horizontal mounting plate that is provided on the vertical mounting rod. The liquid filling and pressurizing mechanism can be suspended on the horizontal mounting plate.

[0062] In addition, it should be noted that the test solution contained in the test container 10 can be tap water, saline solution, or other liquids.

[0063] Furthermore, the floating unit 20 can be floated at the container opening 13, that is, the floating unit 20 floats on the test liquid in the receiving cavity 11 of the container body 12. Moreover, the area of ​​the container opening 13 can correspond to the size of the bottom area of ​​the floating unit 20, which can limit the floating unit 20 on the one hand, and allow the floating unit 20 to float freely on the other hand.

[0064] Furthermore, the floating unit 20 may have a floating cavity 22, and the liquid filling and pressurizing mechanism can be used to directly or indirectly fill and pressurize the floating cavity 22. Liquid can be directly supplied to the floating cavity 22 of the floating unit 20 through the liquid filling and pressurizing mechanism to pressurize the floating unit 20 by the weight of the liquid, simulating the pressure situation of uterine fluid injection. In this case, the liquid filling and pressurizing mechanism may not be in contact with the floating unit 20. Alternatively, the liquid filling and pressurizing mechanism can be used for self-filling to achieve self-pressurization, and then the pressure generated by self-pressurization can be applied to the floating unit 20 to simulate the pressure situation of uterine fluid injection. In this case, the liquid filling and pressurizing mechanism may abut against or connect to the inner bottom wall of the floating cavity of the floating unit 20.

[0065] In addition, the floating unit 20 can also be a solid block structure that can be self-filled with liquid through a liquid filling and pressurizing mechanism to achieve self-pressurization, and then the pressure generated by self-pressurization is applied to the floating unit 20 to simulate the situation of uterine fluid injection under pressure.

[0066] Furthermore, the structure and shape of the floating unit 20 can be configured as needed. For example, the floating unit 20 can be a cylindrical, spherical, or rectangular solid or hollow structure, etc. Moreover, the floating unit 20 is preferably a rigid float. By simulating the uterus for pressure testing using a rigid float, the uterus will not deform under pressure, making the simulation of the pressure adjustment process of the uterine distension device more accurate and reliable.

[0067] Furthermore, in this embodiment, the rigid float can be configured as a rigid buoy with one end closed and the other end open. Specifically, the rigid buoy may include a main cylinder 24 having a float cavity 22, and a cylinder protrusion 26 protruding from the outer peripheral wall of the main cylinder 24. The main cylinder 24 can be configured with a corresponding shape and structure according to the shape and structure of the container opening 13. For example, when the container opening 13 is a circular or square opening, the main cylinder 24 can be configured as a circular or square cylinder. Moreover, the cross-sectional area of ​​the main cylinder 24 can be smaller than the area of ​​the container opening 13, allowing the main cylinder 24 to float freely at the container opening 13; and the length of the cylinder protrusion 26 can be greater than the maximum width of the container opening 13, allowing the cylinder protrusion 26 to be engaged outside the container opening 13, preventing the rigid buoy from completely sinking into the test liquid in the container body 12. Furthermore, in this embodiment, the cylinder protrusion 26 can be configured as an annular protrusion located at the top of the outer peripheral wall of the main cylinder 24, providing more reliable positioning.

[0068] Furthermore, the size of the floating unit 20 can be set according to testing requirements to simulate the uterus of women of different sizes and ages. That is, when testing the uterus of a woman of a certain age, the corresponding size of the floating unit 20 can be placed at the container opening 13 of the test container 10 for testing, which is simple and convenient. Under the pressure applied by the liquid filling and pressurizing mechanism, the floating unit 20 will continuously descend in the test liquid of the test container 10 until it reaches a preset constant pressure value and then remains stationary. In this way, using the floating unit 20 overcomes the problem of poor testing results caused by traditional techniques using balloons to simulate the uterus, where the balloons have poor elasticity and the pressure change is not obvious after inflating to a certain extent. It also overcomes the problem that balloons cannot simulate the uterus of women of different ages.

[0069] In addition, such as Figure 2 As shown, the liquid filling and pressurizing mechanism may include a liquid inlet structure 40 and a liquid pressurizing structure 30 connected to the liquid inlet structure 40. The liquid pressurizing structure 30 corresponds to and cooperates with the floating unit 20 to apply pressure to the floating unit 20, and the liquid pressurizing structure 30 may be disposed on the test container 10. At this time, the liquid filling and pressurizing mechanism can be used to indirectly fill and pressurize the floating unit 20, that is, liquid (such as distending fluid) can be delivered into the liquid pressurizing structure 30 through the liquid inlet structure 40, generating self-pressurizing pressure in the liquid pressurizing structure 30, and the liquid pressurizing structure 30 can apply this self-pressurizing pressure to the corresponding floating unit 20.

[0070] Alternatively, the liquid filling and pressurizing mechanism may consist only of the liquid inlet structure 40, which corresponds to the float cavity 22 of the floating unit 20. In this case, the liquid filling and pressurizing mechanism can be used to directly fill and pressurize the floating unit 20, that is, to directly deliver liquid into the float cavity 22 of the floating unit 20 through the liquid inlet structure 40 to pressurize the floating unit 20.

[0071] Furthermore, the liquid pressurization structure 30 may include a hydraulic cylinder structure mounted on the test container 10, and a pressure sensor 31 mounted on the hydraulic cylinder structure. The draining mechanism 50 and the inlet structure 40 are both connected to the hydraulic cylinder structure, and the hydraulic cylinder structure rests against the floating unit 20. Liquid can be added to the hydraulic cylinder structure through the inlet structure 40 to achieve self-pressurization, and the hydraulic cylinder structure can apply pressure to the floating unit 20. Moreover, the draining mechanism 50 can drain the liquid from the hydraulic cylinder structure, reducing the pressure of the hydraulic cylinder structure. Furthermore, the pressure of the hydraulic cylinder structure can be detected by the pressure sensor 31 during the process of filling or draining the liquid from the hydraulic cylinder structure.

[0072] Furthermore, the hydraulic cylinder structure may include a piston cylinder 32 fixedly mounted on the test container 10, and a piston rod 34 movably mounted in the piston cylinder 32, with the end of the piston rod 34 abutting against the inner bottom wall of the float cavity 22 of the floating unit 20. The piston cylinder 32 may be mounted and fixed to the mounting bracket 14 of the container body 12 to secure the hydraulic cylinder structure to the mounting bracket 14; the piston rod 34 protrudes from the bottom end of the piston cylinder 32, allowing the piston rod 34 to extend and retract downwards towards the floating unit 20, thereby applying pressure to the floating unit 20 through the piston rod 34.

[0073] Furthermore, the piston cylinder 32 may have a liquid inlet chamber at its top. Both the liquid discharge mechanism 50 and the liquid inlet structure 40 are connected to the liquid inlet chamber of the piston cylinder 32. A pressure sensor 31 is used to connect to the liquid inlet chamber to detect its internal pressure. Liquid (such as distending fluid) can be delivered into the liquid inlet chamber at the top of the piston cylinder 32 through the liquid inlet structure 40 to apply pressure to the piston rod 34 in the piston cylinder 32, thereby pushing the piston rod 34 towards the floating unit 20 to apply pressure to the floating unit 20. This simulates the situation where distending fluid is delivered into the uterus to create pressure in the uterine cavity. Moreover, the liquid discharge mechanism 50 can discharge the distending fluid from the liquid inlet chamber of the piston cylinder 32 outwards, simulating the situation where distending fluid flows out of the uterus, causing a decrease in uterine cavity pressure. Furthermore, the pressure sensor 31 can detect the pressure in the liquid inlet chamber of the piston cylinder 32 in real time, facilitating the delivery of distending fluid into the liquid inlet chamber through the liquid inlet structure 40 to maintain a constant pressure.

[0074] For example, multiple cylindrical floating units 20 (such as rigid floats) of different diameters can be prepared to simulate the uterus of women of different ages. The pressure range of uterine distension surgery is generally 80-120 mmHg, while the pressure adjustment testing device of this distension device can test a pressure range of 30-150 mmHg. That is, it can test whether the distension device can restore the pressure to the set equilibrium pressure within a specified time when the set equilibrium pressure is 30 mmHg-150 mmHg. The testing range is much larger than the actual distension pressure range.

[0075] Specifically, the inner radius (i.e. the radius of the inlet chamber) of the piston cylinder 32 of the hydraulic cylinder structure can be r, and the outer radius of the rigid float (mainly referring to the main cylinder 24) can be R.

[0076] Common sense tells us that a normal uterus is generally 7-9 cm long, 4.5-5.5 cm wide, and 3-4 cm thick.

[0077] The inner radius of piston cylinder 32 is set to r = 4cm, and the expansion pressure (which can be regarded as the set equilibrium pressure) is set to 80mmHg;

[0078] Given: 1 mmHg = 1.33322 * 10^-4 MPa, then 80 mmHg ≈ 0.010 MPa

[0079] 1 MPa is equivalent to a force of 10 kg (approximately 100 N) applied to a depth of 1 cm. 2 The pressure is such that the inner bottom area of ​​piston cylinder 32 (i.e., the cross-sectional area of ​​the inlet chamber) is 50.24 cm² (r = 4 cm). 2 Therefore, at a g pressure of 80 mmHg, the force transmitted downward through piston rod 34 is 50.2 N.

[0080] F=ρgV,ρ 水 =1.0×10^3 kg / m 3 g≈10N / kg;

[0081] V=F / ρg=50.2÷(10×1000)=0.00502m 3 ;

[0082] V = 0.00502m 3 =5020cm 3 Assuming the rigid buoy is pressed downwards by 3cm, then the bottom area of ​​the rigid buoy is: s = 1673.333cm² 2 s=πR 2 ;

[0083] The outer radius of the rigid pontoon is R = 23.1 cm.

[0084] By increasing or decreasing the bottom area of ​​the rigid float, the distance the rigid float is pressed downward can be changed, which in turn changes the volume of the distending fluid pressurized in the piston cylinder, thus simulating the uterus of women of different sizes and ages.

[0085] The amount of distending fluid required to reach the set equilibrium pressure varies for women of different ages, and the amount of liquid required to reach the set equilibrium pressure for rigid floats with different bottom areas also varies, thus establishing the corresponding relationship.

[0086] In addition, such as Figure 1 and Figure 2 As shown, the liquid inlet structure 40 may include a first pump body 42 and a liquid inlet pipe 44 connecting the first pump body 42 and the hydraulic cylinder structure. The first pump body 42 communicates with the liquid inlet chamber of the piston cylinder 32 of the hydraulic cylinder structure, and liquid (such as uterine distension fluid) in an external container can be delivered to the liquid inlet chamber of the piston cylinder 32 through the liquid inlet pipe 44 to pressurize the piston rod 34 located in the piston cylinder 32, so that the piston rod 34 of the hydraulic cylinder structure applies pressure to the floating unit 20. Moreover, in this embodiment, the first pump body 42 may be configured as a uterine distension pump for delivering uterine distension fluid to the liquid inlet chamber of the piston cylinder 32. In addition, the first pump body 42 may also be configured as other similar infusion pump bodies.

[0087] Furthermore, the drainage mechanism 50 may include a liquid self-drainage structure connected to the hydraulic cylinder structure of the liquid pressurization structure 30, and / or a liquid suction structure connected to the liquid pressurization structure 30. The liquid self-drainage structure allows for the natural drainage of liquid from the hydraulic cylinder structure (i.e., drainage using the liquid's own pressure and gravity), which can be used to simulate the situation where some distending fluid naturally flows out during hysteroscopic surgery. The liquid suction structure allows for the suction drainage of liquid from the hydraulic cylinder structure, which can be used to simulate the situation where the suction device is activated intermittently to drain cut tissue and waste fluid from the uterus.

[0088] Specifically, the liquid self-drainage structure may include an outlet pipe 56 communicating with the inlet chamber of the piston cylinder 32 of the hydraulic cylinder structure of the liquid pressurization structure 30, and a flow sensor 57 and a drain valve 58 disposed on the outlet pipe 56. By providing the outlet pipe 56 communicating with the inlet chamber of the piston cylinder 32, the distending fluid in the inlet chamber of the piston cylinder 32 can be allowed to flow out naturally, simulating the situation where some distending fluid will naturally flow out during hysteroscopic surgery. Furthermore, by providing the flow sensor 57 and the drain valve 58 on the outlet pipe 56, the flow rate of the naturally flowing distending fluid can be controlled, better simulating the flow rate of distending fluid in actual situations. The flow rate of the naturally flowing distending fluid can be adjusted by the flow sensor 57 and the drain valve 58, and the flow rate of the naturally flowing distending fluid during dynamic adjustment can be set to a fixed value.

[0089] Furthermore, the liquid suction structure may include a drain pipe 52 connected to the hydraulic cylinder structure of the liquid pressurization structure 30, and a second pump body 54 disposed on the drain pipe 52. The second pump body 54 can draw the distending fluid in the inlet chamber of the piston cylinder 32 of the hydraulic cylinder structure out of the hydraulic cylinder structure through the drain pipe 52, to simulate the situation where the suction device is activated intermittently to drain the cut tissue and waste fluid from the uterus. Moreover, in this embodiment, the second pump body 54 may be a suction pump or other similar suction pump.

[0090] Furthermore, the liquid self-draining structure and the liquid suction structure can be set independently of each other, allowing the second pump body 54 of the liquid suction structure to draw the expansion fluid from the inlet chamber of the piston cylinder 32, while the flow sensor 57 and the discharge valve 58 of the liquid self-draining structure allow the expansion fluid in the inlet chamber of the piston cylinder 32 to flow out naturally. In this case, the liquid suction structure can be located at the top of the piston cylinder 32 of the hydraulic cylinder structure, while the liquid self-draining structure can be located on the side of the piston cylinder 32 of the hydraulic cylinder structure.

[0091] Furthermore, when the liquid self-draining structure and the liquid suction structure are set independently, the liquid suction structure may include not only the second pump body 54 installed on the drain pipe 52, but also a second flow sensor and a second drain valve installed on the drain pipe 52. The flow rate of the expansion fluid in the inlet chamber of the piston cylinder 32, drawn out by the second pump body 54, can be controlled by the second flow sensor and the second drain valve.

[0092] Furthermore, the liquid self-draining structure and the liquid suction structure can also be integrated. Specifically, the liquid self-draining structure can be located on the drain pipe 52, thus combining the liquid self-draining structure and the liquid suction structure. This allows the second pump body 54 to suction the expansion fluid from the inlet chamber of the piston cylinder 32, or the flow sensor 57 and the drain valve 58 to allow the expansion fluid to flow naturally out of the inlet chamber of the piston cylinder 32. In this case, both the liquid self-draining structure and the liquid suction structure can be located on the side of the piston cylinder 32 of the hydraulic cylinder structure.

[0093] In this embodiment, the testing equipment simulates the pressure adjustment process of the expansion device. First, expansion fluid is injected into the hydraulic cylinder structure through the liquid inlet structure 40 to reach the set equilibrium pressure. Then, due to the liquid self-drainage structure and the liquid suction structure, the expansion fluid will naturally flow out of the hydraulic cylinder structure and be drawn out. Then, the expansion fluid can be continuously injected into the hydraulic cylinder structure through the liquid inlet structure 40 to maintain the set equilibrium pressure. That is, by controlling the inflow and outflow of expansion fluid in the hydraulic cylinder structure, the set equilibrium pressure can be reached and dynamic equilibrium can be maintained. This is manifested in the change and balance of the buoyancy of the floating unit 20 in the test liquid of the test container 10. The test is conducted to see whether the expansion device can restore the pressure to the set value within a specified time after the pressure changes, so as to ensure that the expansion device will not cause a safety accident due to pressure changes during the expansion process.

[0094] Furthermore, this testing device can be used to determine the relationship between the flow rate, velocity, and other parameters of the injected distending fluid required to maintain a preset constant pressure value and the natural outflow and suction outflow. Thus, the control algorithm or program of the distending pump (such as the first pump body 42) can be tested through this device to determine whether the control algorithm or program meets the requirements.

[0095] Example 2

[0096] This embodiment proposes a pressure adjustment test method for a uterine distension device, applied to the pressure adjustment test equipment 1 for the uterine distension device described in the above embodiment. For example... Figure 1 and Figure 2As shown, the pressure adjustment testing device 1 for the uterine expansion device includes a test container 10, a floating unit 20, and a pressurizing device. The test container 10 has a receiving cavity 11 for holding the test liquid, and the floating unit 20 is floatably disposed within the receiving cavity 11. The pressurizing device is disposed on the test container 10 and corresponds to and cooperates with the floating unit 20. Furthermore, the pressurizing device may include a filling and pressurizing mechanism disposed on the test container 10 for applying pressure to the floating unit 20, and a draining mechanism 50 communicating with the filling and pressurizing mechanism. Moreover, the filling and pressurizing mechanism is equipped with a pressure sensor 31, which can be used to detect the pressure value formed when the filling and pressurizing mechanism performs filling and pressurization.

[0097] Specifically, such as Figure 3 As shown, the pressure adjustment test method for this uterine distension device may specifically include the following steps:

[0098] S100: The control liquid filling and pressurization mechanism pressurizes any floating unit 20 located in the test container 10 by liquid filling, so that the pressure value acting on the floating unit 20 reaches a preset constant pressure value.

[0099] S200: Control the drainage mechanism 50 to discharge the liquid in the filling and pressurizing mechanism or floating unit 20 according to the preset drainage volume, and obtain the current pressure value of the filling and pressurizing mechanism acting on the floating unit 20 in real time.

[0100] S300: Based on the difference between the current pressure value and the preset constant pressure value, control the liquid filling and pressurizing mechanism to continue filling, so that the pressure value of the liquid filling and pressurizing mechanism acting on the floating unit 20 reaches the preset constant pressure value again.

[0101] The pressure range for uterine distension surgery is generally 80-120 mmHg, while the pressure adjustment test method for this distension device can test a pressure range of 30-150 mmHg. This means it can test whether the distension device can restore the pressure to the set equilibrium pressure (preset constant pressure value) within a specified time when the set equilibrium pressure is 30-150 mmHg. The test range is much larger than the actual distension pressure range. During the test, liquid is first added to the test container 10, generating an overfill pressure exceeding the set equilibrium pressure. Then, the filling and pressurizing mechanism is controlled to bring the pressure to a balanced state. Next, in the balanced state, the pressure is changed by adjusting the draining mechanism 50, and the filling and pressurizing mechanism is controlled to restore the pressure to a balanced state (recovering within a specified time, such as 9s, 6s, or 3s).

[0102] In this embodiment, the floating unit 20 can be pressurized by the filling and pressurizing mechanism to achieve a set equilibrium pressure, simulating the situation where distending fluid is infused into the uterus during hysteroscopic surgery to achieve a set equilibrium pressure (preset constant pressure value). Furthermore, liquid (such as distending fluid) can be discharged from the filling and pressurizing mechanism or the floating unit 20 via the drainage mechanism 50 to simulate the outflow of distending fluid from the uterus during surgery. In this case, the pressure on the floating unit 20 will decrease and cannot maintain the preset constant pressure value. The filling and pressurizing mechanism also has a specific filling volume. In cases where the actual pressure value exceeds the preset constant pressure value due to excessive pressure or other factors, the pressure sensor 31 can obtain the current pressure value of the filling and pressurizing mechanism acting on the floating unit 20. Based on the difference between the current pressure value and the preset constant pressure value, the filling and pressurizing mechanism can still be used to fill and pressurize when the distending fluid flows out, or some liquid can be discharged to the filling and pressurizing mechanism or the floating unit 200 through the drainage mechanism 50, so that the pressure value of the filling and pressurizing mechanism acting on the floating unit 20 reaches the preset constant pressure value under dynamic conditions, so as to simulate the situation where the intrauterine pressure is always constant during the operation.

[0103] Furthermore, the liquid filling and pressurizing mechanism may include a liquid inlet structure 40 and a liquid pressurizing structure 30 connected to the liquid inlet structure 40. The liquid pressurizing structure 30 is correspondingly matched with the floating unit 20 to apply pressure to the floating unit 20. The liquid pressurizing structure 30 may be installed on the test container 10, and a pressure sensor 31 is provided on the liquid pressurizing structure 30 to detect its internal pressure (i.e., the pressure applied to the floating unit 20). Moreover, the liquid inlet structure 40 may include a first pump body 42 and a liquid inlet pipe 44 connecting the first pump body 42 and the liquid pressurizing structure 30.

[0104] Further, in step S100, the liquid filling and pressurizing mechanism is controlled to pressurize any floating unit 20 located in the test container 10 by liquid filling, so that the pressure value acting on the floating unit 20 reaches a preset constant pressure value. This can specifically include the following steps:

[0105] S110, the first pump body 42 of the control liquid inlet structure 40 delivers liquid to the liquid pressurization structure 30, and obtains the real-time pressure value of the liquid pressurization structure 30 acting on any floating unit 20 in real time.

[0106] S120. When the real-time pressure value is detected to reach the preset constant pressure value, it is determined that the pressure value of the liquid pressurization structure 30 acting on the floating unit 20 has reached the preset constant pressure value.

[0107] When testing any of the floating units 20, the first pump body 42 of the liquid inlet structure 40 is controlled to deliver liquid (such as distending fluid) to the liquid pressurization structure 30 according to a preset constant pressure value, and the real-time pressure value applied to the floating unit 20 by the liquid pressurization structure 30 is obtained in real time through the pressure sensor 31. During the continuous delivery of distending fluid through the first pump body 42, the real-time pressure value of the liquid pressurization structure 30 will also continue to rise until it reaches the preset constant pressure value. At this time, the pressure value applied to the floating unit 20 by the liquid pressurization structure 30 also reaches the preset constant pressure value.

[0108] Moreover, when the pressure value exerted by the liquid pressurization structure 30 on the floating unit 20 reaches the preset constant pressure value, the size of the bottom area of ​​the floating unit 20 is inversely proportional to the size of its depth immersed in the test liquid of the test container 10.

[0109] For floating units 20 of different sizes, their bottom area values ​​are different. When the pressure value of the liquid pressurization structure 30 acting on the floating unit 20 is kept at a preset constant pressure value, the downward pressure on the floating unit 20 remains constant and is basically equal to the buoyancy force on the floating unit 20. When the size of the floating unit 20 is larger, its bottom area value is larger, and the depth value of the displaced test liquid, that is, the depth value of the test liquid immersed in the test container 10, is smaller.

[0110] In this way, by using different floating units 20, the bottom area value of the floating unit 20 can be increased or decreased, which can change the distance that the floating unit 20 is pressed downward (i.e., the depth value of the immersion in the test liquid in the test container), thereby changing the volume of the distending fluid under pressure in the liquid pressurization structure 30, thus simulating the uterus of women of different sizes and ages.

[0111] Furthermore, the drainage mechanism 50 may include a liquid self-draining structure connected to the liquid pressurizing structure 30; or / and, the drainage mechanism 50 may include a liquid suction structure connected to the liquid pressurizing structure 30. Moreover, the liquid pressurizing structure 30 may include a hydraulic cylinder structure; and the hydraulic cylinder structure may include a piston cylinder 32 fixedly mounted on the test container 10, and a piston rod 34 movably mounted in the piston cylinder 32, the end of the piston rod 34 abutting against the floating unit 20.

[0112] Therefore, in step S200, controlling the drainage mechanism 50 to discharge the liquid from the filling and pressurizing mechanism or the floating unit 20 according to the preset drainage amount may specifically include the following steps:

[0113] S210, the liquid self-draining structure of the control drainage mechanism 50 continuously discharges the liquid from the liquid pressurization structure 30 or the floating unit 20 according to a preset fixed self-draining flow rate.

[0114] Specifically, the drainage mechanism 50 may include a liquid self-drainage structure communicating with the inlet chamber of the piston cylinder 32 of the hydraulic cylinder structure, which enables the natural outflow (active outflow) of the distending fluid in the inlet chamber of the piston cylinder 32. Furthermore, the liquid self-drainage structure may include an outlet pipe 56 communicating with the inlet chamber of the piston cylinder 32, and a flow sensor 57 and a drainage valve 58 disposed on the outlet pipe 56. The drainage valve 58 controls the real-time flow rate of the distending fluid discharged from the inlet chamber of the piston cylinder 32 via the outlet pipe 56, and the flow sensor 57 acquires this real-time flow rate. Moreover, by controlling the opening degree of the drainage valve 58, the distending fluid in the inlet chamber of the piston cylinder 32 can be continuously discharged at a preset fixed self-drainage flow rate to simulate the natural outflow of distending fluid during hysteroscopic surgery.

[0115] Furthermore, since the liquid inlet structure 40 can not only transport liquid to the liquid pressurization structure 30 to pressurize the floating unit 20 through the liquid pressurization structure 30, but also directly transport liquid to the floating unit 20 to pressurize the floating unit 20, the liquid self-drainage structure can also be connected to the floating unit 20 to allow the liquid in the floating unit 20 to flow out naturally.

[0116] S220, the liquid suction structure of the control drainage mechanism 50 discharges the liquid in the liquid pressurization structure 30 or the floating unit 20 according to the preset suction discharge flow rate.

[0117] Specifically, the liquid suction structure may include a drain pipe 52 connected to the inlet chamber of the piston cylinder 32 of the hydraulic cylinder structure, and a second pump body 54 disposed on the drain pipe 52. The second pump body 54 can draw the distending fluid in the inlet chamber of the piston cylinder 32 out of the hydraulic cylinder structure, realizing the passive outflow of the distending fluid in the hydraulic cylinder structure, which can simulate the situation where the suction device is turned on at irregular intervals to discharge the cut tissue and waste fluid in the uterus.

[0118] Similarly, when the first pump body 42 of the liquid inlet structure 40 directly delivers the liquid to the floating unit 20 to pressurize the floating unit 20, the liquid suction structure can also be connected to the floating unit 20 to suction the liquid in the floating unit 20 outward.

[0119] Moreover, the above steps S210 and S220 can be implemented separately or simultaneously.

[0120] Furthermore, in step S200, the current pressure value of the liquid filling and pressurizing mechanism acting on the floating unit 20 is obtained in real time, which may specifically include the following steps:

[0121] S230. When the uterine swelling fluid flows out of the hydraulic cylinder structure of the liquid pressurization structure 30, the current pressure value of the uterine swelling fluid in the inlet chamber of the hydraulic cylinder structure of the filling pressurization mechanism is obtained.

[0122] When the tumescent fluid in the hydraulic cylinder structure actively or / and passively flows out, the pressure of the tumescent fluid in the inlet chamber of the hydraulic cylinder structure will change, causing the pressure of the tumescent fluid in the inlet chamber to no longer be a preset constant pressure value. At this time, the current pressure value of the tumescent fluid in the inlet chamber can be detected in real time by the pressure sensor 31 installed on the piston cylinder 32 of the hydraulic cylinder structure.

[0123] S240. Based on the current pressure value of the expansion fluid in the inlet chamber of the hydraulic cylinder structure, obtain the pressure value of the hydraulic cylinder structure of the filling and pressurizing mechanism acting on the floating unit 20. The current pressure value of the expansion fluid in the piston cylinder 32 of the hydraulic cylinder structure is the pressure value applied to the floating unit 20 by the piston rod 34 of the hydraulic cylinder structure.

[0124] Furthermore, in step S300, based on the difference between the current pressure value and the preset constant pressure value, the liquid filling and pressurizing mechanism is controlled to continue filling, so that the pressure value exerted by the liquid filling and pressurizing mechanism on the floating unit 20 reaches the preset constant pressure value again. Specifically, this may include the following steps:

[0125] When there is a difference between the current pressure value and the preset constant pressure value, the control liquid inlet structure 40 adjusts the flow rate of the expansion fluid delivered to the liquid pressurization structure 30 so that the pressure value of the filling pressurization mechanism acting on the floating unit 20 reaches the preset constant pressure value again.

[0126] Furthermore, controlling the flow rate of the distending fluid delivered to the liquid pressurization structure 30 by the inlet structure 40 can specifically include the following steps:

[0127] S310. When the liquid in the liquid pressurization structure 30 flows out naturally, the first pump body 42 of the liquid inlet structure 40 is controlled to deliver the uterine expansion fluid into the liquid pressurization structure 30 at a first flow rate.

[0128] After the swelling fluid in the inlet chamber of the liquid pressurization structure 30 reaches a preset constant pressure value, the pressure value of the swelling fluid in the liquid pressurization structure 30 decreases because the swelling fluid in the liquid pressurization structure 30 flows out naturally through the liquid self-drainage structure. At this time, based on the difference between the current pressure value of the swelling fluid in the liquid pressurization structure 30 and the preset constant pressure value, the first pump body 42 can be controlled to start and operate at an appropriate speed and flow rate, thereby delivering the swelling fluid to the inlet chamber of the piston cylinder 32 of the liquid pressurization structure 30 at a first flow rate.

[0129] Furthermore, the first pump body 42 can be activated at a first preset time when the pressure value of the distending fluid in the liquid pressurization structure 30 decreases, and can operate at a first flow rate, so that the real-time pressure value of the distending fluid in the liquid pressurization structure 30 can quickly reach the preset constant pressure value again. Moreover, the flow rate corresponding to the first flow rate can correspond to the preset fixed self-drainage flow rate when the distending fluid flows out naturally. Initially, this corresponding flow rate can be made greater than the preset fixed self-drainage flow rate to achieve the preset constant pressure value. After the preset constant pressure value is reached, this corresponding flow rate can be made consistent with the preset fixed self-drainage flow rate to achieve flow balance, thereby achieving dynamic constancy of the preset constant pressure value.

[0130] S320. When the liquid in the liquid pressurization structure 30 is passively flowing out, the first pump body 42 of the liquid inlet structure 40 is controlled to deliver the uterine distension fluid into the liquid pressurization structure 30 at a second flow rate.

[0131] After the uterine distension fluid in the inlet chamber of the liquid pressurization structure 30 reaches a preset constant pressure value, the pressure value of the uterine distension fluid in the liquid pressurization structure 30 will decrease because the uterine distension fluid in the liquid pressurization structure 30 will passively flow out through the second pump body 54. Similarly, at this time, the first pump body 42 can be controlled to start and operate at an appropriate speed and flow rate based on the difference between the current pressure value of the uterine distension fluid in the liquid pressurization structure 30 and the preset constant pressure value, thereby delivering the uterine distension fluid to the inlet chamber of the piston cylinder 32 of the liquid pressurization structure 30 at a second flow rate.

[0132] Furthermore, the suction of the uterine distension fluid from the liquid pressurization structure 30 by the second pump body 54 is temporary, and the volume of the suctioned uterine distension fluid can be a fixed value. Therefore, after the second pump body 54 completes the suction of the uterine distension fluid from the liquid pressurization structure 30, the first pump body 42 can be started to operate and deliver uterine distension fluid into the inlet chamber of the liquid pressurization structure 30 at a second flow rate, so that the current pressure value of the uterine distension fluid in the liquid pressurization structure 30 can quickly reach the preset constant pressure value again.

[0133] Furthermore, it should be noted that steps S310 and S320 can be implemented separately or simultaneously. Moreover, when steps S310 and S320 are implemented simultaneously, it can be assumed that the natural outflow of the uterine distension fluid is always present. When the uterine distension fluid in the liquid pressurization structure 30 is not being drawn by the second pump body 54, the first pump body 42 can be started at a first preset time and operate at a first flow rate, so that the current pressure value of the uterine distension fluid in the liquid pressurization structure 30 quickly reaches the preset constant pressure value again. When the uterine distension fluid in the liquid pressurization structure 30 is being drawn by the second pump body 54, the first pump body 42 can be started at the first preset time and operate at the first flow rate, and then the second flow rate can be increased to operate, i.e., the two situations are superimposed, so that the current pressure value of the uterine distension fluid in the liquid pressurization structure 30 quickly reaches the preset constant pressure value again. Then, the first pump body 42 can reduce the second flow rate and operate at the first flow rate again, so that the uterine distension fluid in the liquid pressurization structure 30 reaches a dynamic equilibrium state.

[0134] In this embodiment, the first pump body 42 can be configured as an expansion pump, and the second pump body 54 can be configured as a suction pump; the floating unit 20 can be configured as a rigid float with a floating cavity 22.

[0135] In this way, the pressure adjustment process of the distending device can be simulated and tested, achieving good test results. It can also test the control algorithm or program of the first pump body (distending pump) 42 to determine the optimal start-up, stop-up time and speed of the distending pump 42, so as to ensure that the pressure in the uterine cavity quickly returns to balance during distending and that the distending fluid does not overfill or impact the inner wall of the uterine cavity. Moreover, by replacing the floating unit 20 of different sizes, it is possible to simulate the uterus of women of different sizes and ages, making the test simple and convenient.

[0136] Example 3

[0137] This embodiment proposes a pressure adjustment testing system for a uterine distension device, which is applied to the pressure adjustment testing equipment for the uterine distension device described in the above embodiment. For example... Figure 1 and Figure 2 As shown, the pressure adjustment testing device 1 for the uterine expansion device includes a test container 10, a floating unit 20, and a pressurizing device. The test container 10 has a receiving cavity 11 for holding the test liquid, and the floating unit 20 is floatably disposed within the receiving cavity 11. The pressurizing device is disposed on the test container 10 and corresponds to and cooperates with the floating unit 20. Furthermore, the pressurizing device may include a filling and pressurizing mechanism disposed on the test container 10 for applying pressure to the floating unit 20, and a draining mechanism 50 communicating with the filling and pressurizing mechanism. Moreover, the filling and pressurizing mechanism is equipped with a pressure sensor 31, which can be used to detect the pressure value formed when the filling and pressurizing mechanism performs filling and pressurization.

[0138] Specifically, such as Figure 4 As shown, the pressure adjustment test system 100 of the uterine expansion device may specifically include:

[0139] The first liquid inlet control module 110 is used to control the liquid filling and pressurizing mechanism to pressurize any floating unit 20 located in the test container 10 by liquid filling, so that the pressure value acting on the floating unit 20 reaches a preset constant pressure value.

[0140] The liquid discharge control module 120 is used to control the liquid discharge mechanism 50 to discharge the liquid in the filling and pressurizing mechanism or the floating unit 20 according to the preset liquid discharge volume, and to obtain the current pressure value of the filling and pressurizing mechanism acting on the floating unit 20 in real time.

[0141] The second liquid inlet control module 130 is used to control the liquid filling and pressurizing mechanism to continue filling liquid according to the difference between the current pressure value and the preset constant pressure value, so that the pressure value of the liquid filling and pressurizing mechanism acting on the floating unit 20 can reach the preset constant pressure value again.

[0142] The pressure adjustment test system 100 for the uterine distension device described in this embodiment corresponds to the pressure adjustment test method for the uterine distension device described in the above embodiments. The functions of each module in the pressure adjustment test system 100 for the uterine distension device in this embodiment are described in detail in the corresponding method embodiments, and will not be repeated here.

[0143] Example 4

[0144] Based on the pressure adjustment testing equipment for the uterine distension device described in the above embodiments, this embodiment also proposes a pressure adjustment testing equipment 1 for the uterine distension device. For example... Figure 1 and Figure 2 As shown, the pressure adjustment testing equipment for the uterine expansion device may include a test container 10, a floating unit 20, and a pressurizing device. The test container 10 has a receiving cavity 11 for holding the test liquid, and the floating unit 20 is floatably disposed within the receiving cavity 11. The pressurizing device is disposed on the test container 10 and corresponds to and cooperates with the floating unit 20. Furthermore, the pressurizing device may include a filling and pressurizing mechanism disposed on the test container 10 for applying pressure to the floating unit 20, and a draining mechanism 50 communicating with the filling and pressurizing mechanism. Moreover, the filling and pressurizing mechanism is equipped with a pressure sensor 31, which can be used to detect the pressure value formed when the filling and pressurizing mechanism performs filling and pressurization.

[0145] Moreover, such as Figure 5As shown, the pressure adjustment test device 1 for the uterine expansion device may further include a controller 60, which is connected to the filling and pressurizing mechanism, the draining mechanism 50, and the pressure sensor 31, and can control these mechanisms. Specifically, the filling and pressurizing mechanism may include a liquid inlet structure 40 and a liquid pressurizing structure 30 connected to the liquid inlet structure 40. The liquid pressurizing structure 30 corresponds to and cooperates with the floating unit 20. The liquid pressurizing structure 30 can be installed on the test container 10, and the pressure sensor 31 is installed on the liquid pressurizing structure 30 to detect its internal pressure. Moreover, the liquid inlet structure 40 may include a first pump body 42 and a liquid inlet pipe 44 connecting the first pump body 42 and the liquid pressurizing structure 30.

[0146] Furthermore, the drainage mechanism 50 may include a liquid self-draining structure and / or a liquid suction structure connected to the liquid pressurization structure 30. The liquid pressurization structure 30 may include a hydraulic cylinder structure; the hydraulic cylinder structure may include a piston cylinder 32 fixedly mounted on the test container 10, and a piston rod 34 movably mounted in the piston cylinder 32, the end of the piston rod 34 abutting against the floating unit 20. The liquid self-draining structure may include an outlet pipe 56 communicating with the inlet chamber of the piston cylinder 32, and a flow sensor 57 and a drainage valve 58 mounted on the outlet pipe 56. The liquid suction structure may include a drainage pipe 52 communicating with the inlet chamber of the piston cylinder 32 of the hydraulic cylinder structure, and a second pump body 54 mounted on the drainage pipe 52. The controller 60 may be connected to the pressure sensor 31, the first pump body 42, the second pump body 54, the flow sensor 57, the drainage valve 58, and other mechanisms for data acquisition and control.

[0147] Specifically, the controller 60 can be used for:

[0148] The control liquid filling and pressurization mechanism pressurizes any floating unit 20 located in the test container 10 by filling liquid, so that the pressure value acting on the floating unit 20 reaches a preset constant pressure value;

[0149] The control mechanism 50 discharges the liquid from the filling and pressurizing mechanism or the floating unit 20 according to the preset discharge volume, and obtains the current pressure value of the filling and pressurizing mechanism acting on the floating unit 20 in real time;

[0150] Based on the difference between the current pressure value and the preset constant pressure value, the filling and pressurizing mechanism is controlled to continue filling, so that the pressure value applied by the filling and pressurizing mechanism to the floating unit 20 reaches the preset constant pressure value again.

[0151] Similarly, in this embodiment, the controller 60 can be used to enable the pressure adjustment test equipment of the uterine distension device to implement each step of the pressure adjustment test method of the uterine distension device described in the above embodiment. The specific implementation method can be referred to the specific content of the pressure adjustment test method of the uterine distension device described above, and will not be repeated here.

[0152] Example 5

[0153] This embodiment also proposes a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement all or part of the method steps of the pressure adjustment test method for the uterine expansion device as described above.

[0154] The present invention can implement all or part of the processes in the above methods, or it can be accomplished by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable file, or some intermediate form. The computer-readable medium can include: any entity or device capable of carrying computer program code, recording media, USB flash drive, portable hard drive, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content included in the computer-readable medium can be appropriately added or removed according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electrical carrier signals and telecommunication signals.

[0155] Based on the same inventive concept, embodiments of this application also provide an electronic device, including a memory and a processor. The memory stores a computer program that runs on the processor. When the processor executes the computer program, it implements all or part of the method steps described above.

[0156] The processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor. The processor is the control center of the computer device, connecting all parts of the computer device through various interfaces and lines.

[0157] Memory can be used to store computer programs and / or models. The processor performs various functions of the computer device by running or executing the computer programs and / or models stored in the memory, and by accessing data stored in the memory. Memory can primarily include a program storage area and a data storage area. The program storage area can store the operating system and at least one application program required for a function (e.g., sound playback, image playback, etc.); the data storage area can store data created based on the use of the mobile phone (e.g., audio data, video data, etc.). Furthermore, memory can include high-speed random access memory, and can also include non-volatile memory, such as hard disks, RAM, plug-in hard disks, smart media cards (SMC), secure digital cards (SD cards), flash cards, at least one disk storage device, flash memory device, or other volatile solid-state storage devices.

[0158] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, servers, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0159] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), servers, and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0160] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0161] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0162] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A pressure adjustment testing device for a uterine expansion device, characterized in that, include: A test container having a cavity for holding the test liquid; A floating unit is used to float the test liquid disposed in the receiving cavity; as well as, A pressurizing device is used to apply pressure to the floating unit; The pressurizing device includes a liquid filling and pressurizing mechanism for applying pressure to the floating unit, and a liquid draining mechanism connected to the liquid filling and pressurizing mechanism. The floating unit has a floating cavity, and the liquid filling and pressurizing mechanism is used to directly or indirectly fill the floating cavity with liquid and apply pressure. The liquid filling and pressurizing mechanism includes a liquid inlet structure and a liquid pressurizing structure connected to the liquid inlet structure. The liquid pressurizing structure is correspondingly matched with the floating unit and is used to apply pressure to the floating unit. The liquid pressurization structure includes a hydraulic cylinder structure mounted on the test container and a pressure sensor mounted on the hydraulic cylinder structure. The liquid discharge mechanism and the liquid inlet structure are both connected to the hydraulic cylinder structure, and the hydraulic cylinder structure abuts against the floating unit. The drainage mechanism includes a liquid self-draining structure connected to the liquid pressurizing structure; or / and the drainage mechanism includes a liquid suction structure connected to the liquid pressurizing structure.

2. The pressure adjustment testing equipment for the uterine distension device according to claim 1, characterized in that, The liquid inlet structure includes a first pump body and a liquid inlet pipe connecting the first pump body and the hydraulic cylinder structure; The hydraulic cylinder structure includes a piston cylinder mounted on the test container and a piston rod movably mounted in the piston cylinder, the end of which abuts against the top surface of the floating unit.

3. The pressure adjustment testing equipment for the uterine distension device according to claim 1, characterized in that, The test container includes a container body having the receiving cavity, and a container opening is provided at the top of the container body, with the floating unit floatingly disposed at the container opening; The test container includes a mounting bracket protruding from the top of the container body, and the liquid pressurization structure is fixed to the mounting bracket.

4. The pressure adjustment testing equipment for the uterine distension device according to claim 3, characterized in that, The floating unit is configured as a rigid float with a floating cavity. The rigid float is floated at the container opening of the container body. The liquid pressurization structure is correspondingly matched with the rigid float.

5. A pressure adjustment test method for a uterine distension device, applied to the pressure adjustment test equipment for the uterine distension device as described in any one of claims 1-4; Its features are, The method includes: The control liquid filling and pressurization mechanism pressurizes any floating unit located in the test container by filling liquid, so that the pressure value acting on the floating unit reaches a preset constant pressure value; The liquid discharge mechanism is controlled to discharge the liquid from the filling and pressurizing mechanism or the floating unit according to the preset discharge volume, and the current pressure value of the filling and pressurizing mechanism acting on the floating unit is obtained in real time. Based on the difference between the current pressure value and the preset constant pressure value, the filling and pressurizing mechanism is controlled to continue filling, so that the pressure value applied by the filling and pressurizing mechanism to the floating unit reaches the preset constant pressure value again.

6. The pressure adjustment test method for the uterine distension device according to claim 5, characterized in that, The liquid filling and pressurizing mechanism includes a liquid inlet structure and a liquid pressurizing structure connected to the liquid inlet structure, and the liquid pressurizing structure is correspondingly matched with the floating unit; The controlled liquid filling and pressurization mechanism pressurizes any floating unit located in the test container by liquid filling, so that the pressure value acting on the floating unit reaches a preset constant pressure value, including: The liquid inlet structure is controlled to deliver liquid to the liquid pressurization structure, and the real-time pressure value of the liquid pressurization structure acting on any floating unit is obtained in real time. When the real-time pressure value is detected to reach the preset constant pressure value, it is determined that the pressure value exerted by the liquid pressurization structure on the floating unit has reached the preset constant pressure value.

7. The pressure adjustment test method for the uterine distension device according to claim 6, characterized in that, The drainage mechanism includes a liquid self-drainage structure connected to the liquid pressurization structure; or / and, The drainage mechanism includes a liquid suction structure connected to the liquid pressurization structure; The controlled drainage mechanism discharges liquid from the filling and pressurizing mechanism or the floating unit according to a preset drainage volume, including: The liquid self-draining structure of the control drainage mechanism continuously discharges liquid from the liquid pressurization structure or the floating unit according to a preset fixed self-draining flow rate; or / and, The liquid suction structure of the control drainage mechanism discharges the liquid from the liquid pressurization structure or the floating unit according to a preset suction discharge flow rate.

8. The pressure adjustment test method for the uterine distension device according to claim 6, characterized in that, The step of controlling the filling and pressurizing mechanism to continue filling with liquid based on the difference between the current pressure value and the preset constant pressure value, so that the pressure value exerted by the filling and pressurizing mechanism on the floating unit reaches the preset constant pressure value again, includes: When there is a difference between the current pressure value and the preset constant pressure value, the liquid inlet structure is controlled to adjust the flow rate of the expansion fluid delivered to the liquid pressurization structure, so that the pressure value of the liquid filling and pressurization mechanism acting on the floating unit reaches the preset constant pressure value again.

9. A pressure adjustment testing system for a uterine distension device, applied to the pressure adjustment testing equipment for the uterine distension device as described in any one of claims 1-4; Its features are, The system includes: The first liquid inlet control module is used to control the liquid filling and pressurizing mechanism to pressurize any floating unit located in the test container by liquid filling, so that the pressure value acting on the floating unit reaches a preset constant pressure value. The liquid discharge control module is used to control the liquid discharge mechanism to discharge the liquid from the filling and pressurizing mechanism or the floating unit according to the preset liquid discharge volume, and to obtain the current pressure value of the filling and pressurizing mechanism acting on the floating unit in real time. The second liquid inlet control module is used to control the liquid filling and pressurizing mechanism to continue filling the liquid according to the difference between the current pressure value and the preset constant pressure value, so that the pressure value of the liquid filling and pressurizing mechanism acting on the floating unit can reach the preset constant pressure value again.

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