Abdominal cavity environment simulation test cabin

Abstract

The utility model relates to the technical field of medical apparatuses and instruments, and discloses an abdominal environment simulation test chamber, which comprises an environment chamber and an objective table, the objective table is arranged in the internal space of the environment chamber, the environment chamber is provided with a through hole for a to-be-tested instrument to pass through, the to-be-tested instrument can enter the internal space of the environment chamber through the through hole, and the to-be-tested instrument can enter the internal space of the environment chamber through the objective table. The objective table is used for fixing a clamped object, and the objective table can drive the clamped object to move and / or rotate, so that the instrument to be tested can perform corresponding operation on different parts of the clamped object. According to the abdominal environment simulation test chamber provided by the invention, the relative position of the to-be-tested instrument and the clamped object can be conveniently adjusted, so that the to-be-tested instrument can be conveniently operated to carry out corresponding operation on different parts of the clamped object.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an abdominal environment simulation test chamber. Background Art

[0002] In the process of manufacturing medical devices, according to relevant guidelines, it is necessary to simulate the actual working conditions of the medical devices and conduct stability and reliability tests on the medical devices to confirm whether they meet the use requirements. Currently, this process is generally carried out in an abdominal environment simulation test chamber.

[0003] For some medical devices that need to be clamped or sheared during use, a shear test is required. The traditional method is to first place the device to be tested and the clamped object in an abdominal environment simulation test chamber, and then operate the device to be tested to perform corresponding operations on different parts of the clamped object to obtain experimental data. Since the space in the abdominal environment simulation test chamber is small, it is not convenient to adjust the relative position of the device to be tested and the clamped object, and thus it is not convenient to operate the device to be tested to perform corresponding operations on different parts of the clamped object, which affects the test efficiency. Utility Model Content

[0004] The present application provides an abdominal environment simulation test chamber, which can facilitate the adjustment of the relative positions of a device to be tested and a clamped object, thereby facilitating the operation of the device to be tested to perform corresponding operations on different parts of the clamped object.

[0005] An embodiment of the present application provides an abdominal environment simulation test chamber, including an environmental chamber and a loading platform, wherein the loading platform is arranged in the internal space of the environmental chamber, the environmental chamber is provided with a through hole for the instrument to be tested to pass through, and the instrument to be tested can enter the internal space of the environmental chamber through the through hole, and the loading platform is used to fix a clamp, and the loading platform can drive the clamp to move and / or rotate so that the instrument to be tested can perform corresponding operations on different parts of the clamp.

[0006] In some embodiments, the stage includes a first platform and a second platform connected to each other, the first platform is used to fix the clamp, and the first platform can move and / or rotate relative to the second platform so that the device under test can operate on different parts of the clamp.

[0007] In some embodiments, the first platform is rotatable relative to the second platform.

[0008] In some embodiments, the stage includes a third platform connected to the second platform, and the second platform is movable along a first direction relative to the third platform.

[0009] In some embodiments, the stage includes a fourth platform, and the third platform is movable relative to the fourth platform along a second direction, wherein the second direction is perpendicular to the first direction.

[0010] In some embodiments, the loading platform includes a fifth platform connected to the fourth platform, and the fourth platform can move along a third direction relative to the fifth platform, and the third direction is perpendicular to the second direction and the third direction is perpendicular to the first direction.

[0011] In some embodiments, the abdominal environment simulation test chamber includes a sleeve and a seal, the sleeve is passed through the through hole, and the sleeve connects the internal space of the environmental chamber and the external space of the environmental chamber, the seal is arranged at one end of the sleeve away from the environmental chamber, and the seal is used to seal the gap between the instrument to be tested and the sleeve when the instrument to be tested is inserted into the sleeve.

[0012] In some embodiments, the abdominal environment simulation test chamber includes a CO 2 Control device, the CO 2 The control device is connected to the casing, and the CO 2 The control device is used to introduce CO into the casing. 2 gas.

[0013] In some embodiments, the seal is provided with an air inlet hole, the CO 2 The control device is used to introduce CO into the casing through the air inlet. 2 gas.

[0014] In some embodiments, the abdominal cavity environment simulation test chamber includes a humidity control device, and the humidity control device is used to control the humidity of the internal space of the environmental chamber;

[0015] And / or, the abdominal cavity environment simulation test chamber includes a temperature control device, and the temperature control device is used to control the temperature of the internal space of the environment chamber;

[0016] And / or, the abdominal cavity environment simulation test chamber includes a pressure control device, and the pressure control device is used to control the pressure of the internal space of the environment chamber.

[0017] The abdominal environment simulation test chamber provided in the embodiment of the present application has the beneficial effect that: since the loading platform is arranged in the internal space of the environmental chamber and the loading platform is used to fix the clamped object, the clamped object can be driven to move and / or rotate by the loading platform, so as to facilitate the adjustment of the relative position of the instrument to be tested and the clamped object, thereby facilitating the operation of the instrument to be tested to perform corresponding operations on different parts of the clamped object. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 This is a schematic diagram of the structure of the abdominal environment simulation test chamber in one of the embodiments of the present application;

[0020] Figure 2 yes Figure 1 A top view of a stage in the abdominal environment simulation test chamber is shown;

[0021] Figure 3 yes Figure 2 A top view of the first platform, the second platform and the third platform in the stage shown;

[0022] Figure 4 yes Figure 2 A top view of the first platform, the second platform and the fourth platform in the worktable is shown.

[0023] The meanings of the marks in the figure are:

[0024] 10. Environmental chamber;

[0025] 11. Hatch door; 12. Observation window;

[0026] 20. Stage;

[0027] 21, first platform; 22, second platform; 23, third platform; 24, fourth platform; 241, first guide rail; 25, fifth platform; 251, second guide rail;

[0028] 30, clamping object; 40, through hole; 50, sleeve; 60, seal; 70, CO 2 Control device; 80, humidity control device; 90, temperature control device; 100, pressure control device; 110, drain valve; 120, air release valve; 130, drive unit; 140, control and acquisition system; 150, bracket;

[0029] 200. Equipment to be tested. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] References to "one embodiment", "some embodiments" or "an embodiment" described in the specification of this application mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application. Thus, the phrases "in one embodiment", "in some other embodiments", "in some other embodiments", etc., which appear at different places in this specification, do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. In addition, in one or more embodiments, particular features, structures or characteristics may be combined in any suitable manner.

[0034] In order to illustrate the technical solution of the present application, a description is given below with reference to specific drawings and embodiments.

[0035] For some medical devices that need to be clamped or sheared during use, a shear test is required. The traditional method is to first place the device to be tested and the clamped object in an abdominal environment simulation test chamber, and then operate the device to be tested to perform corresponding operations on different parts of the clamped object to obtain experimental data. Since the space in the abdominal environment simulation test chamber is small, it is not convenient to adjust the relative position of the device to be tested and the clamped object 30, so it is not convenient to operate the device to be tested to perform corresponding operations on different parts of the clamped object, which affects the test efficiency.

[0036] In order to solve the above problems, the present application provides an abdominal environment simulation test chamber, which can facilitate the adjustment of the relative position of the device under test 200 and the clamp 30, thereby facilitating the operation of the device under test 200 to perform corresponding operations on different parts of the clamp 30.

[0037] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the abdominal environment simulation test chamber in one of the embodiments of the present application. Figure 2 yes Figure 1 A top view of the loading platform 20 in the abdominal cavity environment simulation test chamber is shown.

[0038] An embodiment of the present application provides an abdominal environment simulation test chamber, including an environmental chamber 10 and a stage 20. The stage 20 is arranged in the internal space of the environmental chamber 10. The environmental chamber 10 is provided with a through hole 40 for the instrument to be tested 200 to pass through. The instrument to be tested 200 can enter the internal space of the environmental chamber 10 through the through hole 40. The stage 20 is used to fix a clamp 30. The stage 20 can drive the clamp 30 to move and / or rotate, so that the instrument to be tested 200 can perform corresponding operations on different parts of the clamp 30.

[0039] The instrument 200 to be tested may be an active instrument such as a Maryland bipolar forceps, a monopolar curved scissors, an ultrasonic scalpel, or a passive instrument such as a large needle holding forceps, a strong grasping forceps, or a small double-hole grasping forceps. The clamp 30 may be a simulated human tissue or organ. Depending on the specific type of the instrument 200 to be tested, the instrument 200 to be tested may be able to perform corresponding operations such as clamping or shearing on different parts of the clamp 30, so that the instrument 200 to be tested may be subjected to tests such as life test.

[0040] Specifically, the stage 20 can drive the clamped object 30 to move, but cannot drive the clamped object 30 to rotate. Alternatively, the stage 20 can drive the clamped object 30 to rotate, but cannot drive the clamped object 30 to move. Alternatively, the stage 20 can drive the clamped object 30 to move, and can also drive the clamped object 30 to rotate. The stage 20 can be a one-dimensional mechanical stage 20, a two-dimensional mechanical stage 20, or a three-dimensional mechanical stage 20, such as a three-axis stage 20.

[0041] In the abdominal environment simulation test chamber provided in the embodiment of the present application, since the stage 20 is arranged in the internal space of the environmental chamber 10 and the stage 20 is used to fix the clamp 30, the clamp 30 can be driven to move and / or rotate by the stage 20, so as to facilitate the adjustment of the relative position of the device under test 200 and the clamp 30, thereby facilitating the operation of the device under test 200 to perform corresponding operations on different parts of the clamp 30.

[0042] Optionally, when the device under test 200 is an active device, the device under test 200 can be connected to the driving unit 130, and the driving unit 130 can include a power box or a driving motor, a driving power supply, a bracket 150 and related connecting cables, and the driving unit 130 provides power for the device under test 200.

[0043] Optionally, the environmental chamber 10 may be provided with a door 11 and an observation window 12. The environmental chamber 10 is a pressure-resistant structural member, the door 11 has a sealing strip, and the observation window 12 is organic glass, which can observe and record the test process.

[0044] Optionally, the environmental chamber 10 may be provided with a sewage valve 110 and an air release valve 120. The sewage (supersaturated water vapor) and smoke generated during the excitation of the active device may be discharged through the sewage valve 110 and the air release valve 120.

[0045] Please refer to Figure 3 and Figure 4 , Figure 3 yes Figure 2 The top view of the first platform 21, the second platform 22 and the third platform 23 in the stage 20 shown, Figure 4 yes Figure 2 A top view of the first platform 21, the second platform 22 and the fourth platform 24 in the worktable 20 is shown.

[0046] In this embodiment, the stage 20 includes a first platform 21 and a second platform 22 connected to each other. The first platform 21 is used to fix the clamp 30. The first platform 21 can move and / or rotate relative to the second platform 22 so that the device under test 200 can operate on different parts of the clamp 30.

[0047] By adopting the above solution, the first platform 21 can be moved and / or rotated relative to the second platform 22 to facilitate adjustment of the relative positions of the device under test 200 and the clamp 30 , thereby facilitating the operation of the device under test 200 to perform corresponding operations on different parts of the clamp 30 .

[0048] It can be understood that the first platform 21 can move relative to the second platform 22, but the first platform 21 cannot rotate relative to the second platform 22. Alternatively, the first platform 21 can rotate relative to the second platform 22, but the first platform 21 cannot move relative to the second platform 22. Alternatively, the first platform 21 can move relative to the second platform 22, and the first platform 21 can rotate relative to the second platform 22.

[0049] Specifically, the first platform 21 can rotate relative to the second platform 22. In this way, the relative position of the device 200 to be tested and the clamp 30 can be adjusted by rotating the first platform 21 relative to the second platform 22, so as to facilitate the operation of the device 200 to perform corresponding operations on different edge parts of the clamp 30.

[0050] For example, please refer to Figure 2 The first platform 21 and the second platform 22 are rotatably connected, and the first platform 21 can move relative to the second platform 22 along Figure 2 The machine rotates 360° in the direction indicated by the arrow A.

[0051] In other embodiments, the first platform 21 and the second platform 22 may be slidably connected via a slide rail, and the first platform 21 may move relative to the second platform 22 .

[0052] In this embodiment, the stage 20 includes a third platform 23 connected to the second platform 22 , and the second platform 22 can move along a first direction relative to the third platform 23 .

[0053] With such arrangement, the relative position of the device to be tested 200 and the clamp 30 can be adjusted by rotating the first platform 21 relative to the second platform 22, and the relative position of the device to be tested 200 and the clamp 30 can be adjusted by moving the second platform 22 relative to the third platform 23. Thus, the relative position of the device to be tested 200 and the clamp 30 can be adjusted in multiple dimensions, thereby making it easier to operate the device to be tested 200 to perform corresponding operations on different parts of the clamp 30.

[0054] For example, please refer to Figure 3 , the first direction can be Figure 3 In the direction indicated by the arrow B, the second platform 22 can reciprocate relative to the third platform 23 along the first direction, that is, the second platform 22 can reciprocate relative to the third platform 23 along the Figure 3 The second platform 22 can also move in the direction indicated by the arrow B relative to the third platform 23. Figure 3 Move in the direction indicated by the arrow C to achieve the upper and lower layer replacement of the clamped object 30.

[0055] Specifically, a slide rail may be provided between the second platform 22 and the third platform 23 , and the second platform 22 may be connected to a ball screw motor, a hydraulic cylinder or a pneumatic cylinder, which drives the second platform 22 to move along the first direction relative to the third platform 23 .

[0056] In this embodiment, the stage 20 includes a fourth platform 24 , and the third platform 23 can move relative to the fourth platform 24 along a second direction, where the second direction is perpendicular to the first direction.

[0057] With such arrangement, the relative position of the device to be tested 200 and the clamp 30 can be adjusted by rotating the first platform 21 relative to the second platform 22, the relative position of the device to be tested 200 and the clamp 30 can be adjusted by moving the second platform 22 relative to the third platform 23, and the relative position of the device to be tested 200 and the clamp 30 can be adjusted by moving the third platform 23 relative to the fourth platform 24. Thus, the relative position of the device to be tested 200 and the clamp 30 can be adjusted in more dimensions, thereby making it easier to operate the device to be tested 200 to perform corresponding operations on different parts of the clamp 30.

[0058] For example, please refer to Figure 2 , the second direction can be Figure 2In the direction indicated by the arrow G in the middle, the third platform 23 can reciprocate relative to the fourth platform 24 along the second direction, that is, the third platform 23 can reciprocate relative to the fourth platform 24 along the Figure 2 The third platform 23 can move in the direction indicated by the arrow G relative to the fourth platform 24. Figure 2 Move in the direction indicated by arrow F.

[0059] Specifically, a first guide rail 241 may be provided between the fourth platforms 24 , and the third platform 23 may be connected to a ball screw motor, a hydraulic cylinder or a pneumatic cylinder, which drives the third platform 23 to move along the second direction relative to the fourth platform 24 .

[0060] In this embodiment, the stage 20 includes a fifth platform 25 connected to the fourth platform 24. The fourth platform 24 can move relative to the fifth platform 25 along a third direction, which is perpendicular to the second direction and the first direction.

[0061] With such arrangement, the relative position of the device to be tested 200 and the clamp 30 can be adjusted by rotating the first platform 21 relative to the second platform 22, and the relative position of the device to be tested 200 and the clamp 30 can be adjusted by moving the second platform 22 relative to the third platform 23. The relative position of the device to be tested 200 and the clamp 30 can be adjusted by moving the third platform 23 relative to the fourth platform 24, and the relative position of the device to be tested 200 and the clamp 30 can be adjusted by moving the fourth platform 24 relative to the fifth platform 25. Thus, the relative position of the device to be tested 200 and the clamp 30 can be adjusted in more dimensions, thereby making it easier to operate the device to be tested 200 to perform corresponding operations on different parts of the clamp 30.

[0062] For example, please refer to Figure 2 , the third party can Figure 2 In the direction indicated by the arrow D, the fourth platform 24 can reciprocate along the third direction relative to the fifth platform 25, that is, the fourth platform 24 can reciprocate along the third direction relative to the fifth platform 25. Figure 2 The fourth platform 24 can also move in the direction indicated by the arrow D relative to the fifth platform 25. Figure 2 Move in the direction indicated by arrow E.

[0063] Specifically, the fifth platform 25 may be provided with a second guide rail 251 , and the fourth platform 24 may be connected to a ball screw motor, a hydraulic cylinder or a pneumatic cylinder, which drives the fourth platform 24 to move along the third direction relative to the fifth platform 25 .

[0064] In order to match different types of devices 200 to be tested, the third platform 23 can move infinitely relative to the fourth platform 24 , and the fourth platform 24 can move infinitely relative to the fifth platform 25 .

[0065] Please refer to Figure 1 In this embodiment, the abdominal environment simulation test chamber includes a sleeve 50 and a seal 60. The sleeve 50 is inserted into the through hole 40, and the sleeve 50 connects the internal space of the environmental chamber 10 and the external space of the environmental chamber 10. The seal 60 is arranged at one end of the sleeve 50 away from the environmental chamber 10, and the seal 60 is used to seal the gap between the device to be tested 200 and the sleeve 50 when the device to be tested 200 is inserted into the sleeve 50.

[0066] By adopting the above solution, the sealing performance of the sealing element 60 can be tested through an abdominal environment simulation test chamber.

[0067] Specifically, the through hole 40 is disposed on the wall of the environmental chamber 10 .

[0068] It can be understood that the sealing member 60 may be partially or completely located in the gap between the device under test 200 and the sleeve 50 .

[0069] When the instrument 200 to be tested is an endoscope for a surgical robot, the docking plate of the endoscope instrument box is connected to the drive unit 130, and the instrument box is connected to the electrosurgery host and the light source host. At this time, the sealing performance of the endoscope can be tested through the abdominal environment simulation test chamber.

[0070] Optionally, the abdominal environment simulation test chamber includes a CO 2 Control device 70, CO 2 The control device 70 is connected to the casing 50, CO 2 The control device 70 is used to introduce CO into the casing 50. 2 Such an arrangement can make the internal space of the environmental chamber 10 closer to the abdominal environment during surgery, thus ensuring the authenticity and reliability of the test data.

[0071] Among them, CO can be controlled by regulating valve 2 Flow rate and flow velocity.

[0072] Specifically, the sealing member 60 is provided with an air inlet hole, CO 2 The control device 70 is used to introduce CO into the casing 50 through the air inlet hole. 2 This arrangement facilitates the introduction of CO into the interior space of the environmental chamber 10 through the air inlet. 2 gas.

[0073] In this embodiment, the abdominal cavity environment simulation test chamber includes a humidity control device 80, which is used to control the humidity of the internal space of the environmental chamber 10. This arrangement facilitates the control of the humidity of the internal space of the environmental chamber 10 to meet the test requirements and ensure the authenticity and reliability of the test data.

[0074] Optionally, the abdominal environment simulation test chamber includes a temperature control device 90, which is used to control the temperature of the internal space of the environmental chamber 10. This arrangement facilitates the control of the temperature of the internal space of the environmental chamber 10 to meet the test requirements and ensure the authenticity and reliability of the test data.

[0075] Optionally, the abdominal environment simulation test chamber includes a pressure control device 100, which is used to control the pressure of the internal space of the environment chamber 10. This arrangement facilitates the control of the pressure of the internal space of the environment chamber 10 to meet the test requirements and ensure the authenticity and reliability of the test data.

[0076] The temperature control device 90 and the humidity control device 80 can provide the temperature and humidity of the internal space of the environmental chamber 10 that meet the test conditions and make real-time adjustments. The pressure control device 100 adjusts the pressure of the internal space of the environmental chamber 10 in real time according to the set pressure, and further feeds back to the CO 2 The control device 70 replenishes air to the inner space of the environmental chamber 10 or stops supplying air.

[0077] Optionally, the abdominal environment simulation test chamber includes a control and acquisition system 140, which includes a pressure sensor, an acquisition card, and a computer, etc., and is mainly responsible for controlling the power output of the drive unit 130, and acquiring and controlling relevant parameters such as pressure and rotation speed, as well as the rotation and movement of the stage 20.

[0078] In this embodiment, the apparatus 200 to be tested is a monopolar curved scissors, and a reliability test of the monopolar curved scissors is performed as an example to describe the method of using the abdominal environment simulation test chamber:

[0079] First, the sleeve 50 and the seal 60 are installed in the through hole 40 of the wall of the environmental chamber 10, and the control structure of the monopolar bending scissors is connected to the drive unit 130, wherein the slender shaft of the monopolar bending scissors passes through the sleeve 50 and the seal 60 and is inserted into the internal space of the environmental chamber 10. At the same time, the monopolar bending scissors are connected to the electrosurgical host, which provides the energy required during the excitation process.

[0080] Next, the clamp 30 of required specifications and corresponding number of layers is installed on the first platform 21 , and the position of the first platform 21 relative to the fifth platform 25 is adjusted to adapt to the relative position of the monopolar bending and shearing distal position and the clamp 30 .

[0081] Then, the door 11 is closed, the temperature control device 90, the humidity control device 80 and the pressure control device 100 are connected to the environmental chamber 10 respectively, and the CO 2 The control device 70 is connected to the air inlet. By adjusting the corresponding control valve, the internal space of the environmental chamber 10 can reach the pressure, temperature, humidity and CO required by the test. 2 At the same time, the control and acquisition system 140 is turned on, and the test parameters such as the opening angle, shearing speed, and step time of the monopolar bending shears are set according to the test requirements. The electrosurgery host is turned on and the corresponding functional parameters are set. Before the test, one end of the clamp 30 is kept at the distal position of the monopolar bending shears.

[0082] Then, the test is started, and each time the distal scissor head of the monopolar bending shears performs shearing and opens, the stage 20 drives the clamp 30 to step one grid distance. When the monopolar bending shears completes the lateral shearing action on one side of the clamp 30, the stage 20 drives the clamp 30 to rotate 90°, and its other side corresponds to the distal blade head of the monopolar bending shears. The distal blade head of the monopolar bending shears starts to shear and open, and the stage 20 drives the clamp 30 to step in the opposite direction until all the shearing on this single side is completed; repeat the above steps until the shearing of the four sides of the first layer of clamp 30 is completed, and the stage 20 steps one grid longitudinally. The distal blade head of the monopolar bending shears matches the second layer of clamp 30, and repeat the above steps (Note: according to actual conditions, the clamp 30 can be disc-shaped, that is, 360-degree uninterrupted shearing can be achieved).

[0083] When all the clamps 30 are consumed, the drive unit 130, the control and acquisition system 140 are turned off, the temperature control device 90, the humidity control device 80, the pressure control device 100 and the CO 2 Control device 70, and open drain valve 110 and vent valve 120. After stabilization, open hatch 11, remove the single-pole shear, and conduct post-test evaluation. If there is no problem, wash and eliminate the single-pole shear and sleeve 50 once, and replace the seal 60.

[0084] Finally, the monopolar bending shear, the sleeve 50 and the seal 60 are reassembled into the environmental chamber 10, and the clamp 30 is replaced, and the above steps are repeated to continue the test.

[0085] Take the single-pole bending shears as an example. If the service life is defined as N times, and the number of shear cuts in a single life is M times, the total shear life is (N*M) times, and the expected total shear life is (1.2*N*M) times (reserving 20% ​​redundancy).

[0086] If the service life is evaluated N times, that is, the door 11 of the environmental chamber 10 is opened N times, the number of shearing times each time the door is opened is (1.2*M). Then the clamp 30 (square) on the stage 20 is set to s layers, each layer is separated by D (the maximum working space of the single-pole bending shear is d, D>d), and the thickness of the clamp 30 is set to a, then the total height of the clamp 30 is [s*(a+D)]. Then the longitudinal height of the internal space of the environmental chamber 10 should be greater than [2s(a+D)], and the removal of the clamp 30 and the thickness of the base of the stage 20 should be considered.

[0087] When the clamp 30 (a square) is set to s layers, the shearing times of a single-layer clamp 30 is [(1.2*M) / s] times, and the single-side shearing times is [0.3*M / s] times. Calculated based on the stepping distance of the stage 20 as b, the single-side length of the clamp 30 is [(0.3*b*M) / s], and the single-side length of the internal space of the environmental chamber 10 should be greater than [0.424*b*M / s]. It is recommended to consider the removal of the clamp 30.

[0088] If the holder 30 (circular) is set to s layers, the diameter of the holder 30 is [(1.2*b*M) / (πs)], and the single side length of the internal space of the environmental chamber 10 should be greater than [(1.2*b*M) / (πs)].

[0089] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. An abdominal cavity environment simulation test chamber, characterized in that: The invention comprises an environmental chamber (10) and a loading platform (20), wherein the loading platform (20) is arranged in the internal space of the environmental chamber (10), the environmental chamber (10) is provided with a through hole (40) for allowing a device to be tested (200) to pass through, and the device to be tested (200) can enter the internal space of the environmental chamber (10) through the through hole (40), and the loading platform (20) is used to fix a clamp (30), and the loading platform (20) can drive the clamp (30) to move and / or rotate, so that the device to be tested (200) can perform corresponding operations on different parts of the clamp (30).

2. The abdominal cavity environment simulation test chamber according to claim 1, characterized in that: The loading platform (20) comprises a first platform (21) and a second platform (22) which are connected to each other, wherein the first platform (21) is used to fix the clamp (30), and the first platform (21) can move and / or rotate relative to the second platform (22) so that the device to be tested (200) can operate on different parts of the clamp (30).

3. The abdominal cavity environment simulation test chamber according to claim 2, characterized in that: The first platform (21) is rotatable relative to the second platform (22).

4. The abdominal cavity environment simulation test chamber according to claim 3, characterized in that: The loading platform (20) comprises a third platform (23) connected to the second platform (22), and the second platform (22) can move along a first direction relative to the third platform (23).

5. The abdominal cavity environment simulation test chamber according to claim 4, characterized in that: The object carrier (20) comprises a fourth platform (24), and the third platform (23) can move relative to the fourth platform (24) along a second direction, wherein the second direction is perpendicular to the first direction.

6. The abdominal cavity environment simulation test chamber according to claim 5, characterized in that: The loading platform (20) includes a fifth platform (25) connected to the fourth platform (24), and the fourth platform (24) can move along a third direction relative to the fifth platform (25), and the third direction is perpendicular to the second direction, and the third direction is perpendicular to the first direction.

7. The abdominal cavity environment simulation test chamber according to any one of claims 1 to 6, characterized in that: The abdominal environment simulation test chamber comprises a sleeve (50) and a sealing member (60); the sleeve (50) is inserted into the through hole (40), and the sleeve (50) connects the internal space of the environmental chamber (10) and the external space of the environmental chamber (10); the sealing member (60) is arranged at one end of the sleeve (50) away from the environmental chamber (10), and the sealing member (60) is used to seal the gap between the device to be tested (200) and the sleeve when the device to be tested (200) is inserted into the sleeve (50).

8. The abdominal cavity environment simulation test chamber according to claim 7, characterized in that: The abdominal environment simulation test chamber comprises a CO2 control device (70), which is connected to the sleeve (50) and is used to introduce CO2 gas into the sleeve (50).

9. The abdominal cavity environment simulation test chamber according to claim 8, characterized in that: The sealing member (60) is provided with an air inlet hole, and the CO2 control device (70) is used to introduce CO2 gas into the sleeve (50) through the air inlet hole.

10. The abdominal cavity environment simulation test chamber according to any one of claims 1 to 6, characterized in that: The abdominal cavity environment simulation test chamber comprises a humidity control device (80), and the humidity control device (80) is used to control the humidity of the internal space of the environmental chamber (10); And / or, the abdominal cavity environment simulation test chamber comprises a temperature control device (90), and the temperature control device (90) is used to control the temperature of the internal space of the environment chamber (10); And / or, the abdominal cavity environment simulation test chamber comprises a pressure control device (100), and the pressure control device (100) is used to control the pressure of the internal space of the environmental chamber (10).

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