A sterile detection device for a medical instrument

Abstract

The application discloses a kind of sterile detection equipment for medical instrument, it is related to sterile detection technical field.The present application includes console, the top of the console is fixedly installed with peristaltic pump, the left side of peristaltic pump is provided with pipe clamp assembly, pipe clamp assembly includes mounting block fixedly installed on peristaltic pump, the left side of mounting block is fixedly installed with four groups of guide sleeve, the outside of guide sleeve is provided with sleeve frame, the inside of sleeve frame is rotatably installed with swing sleeve.The present application is driven first lever and second lever to rotate by shelf plate, first lever and second lever can push swing sleeve to swing, and by the setting of special connecting pipe group structure, control flush pipe opens, can simultaneously inject test solution to triple set bacteria collection filter incubator, triple set bacteria collection filter incubator filters test solution, along with shelf plate rotation, infusion tube opens, flush pipe closes, and waste liquid box automatically closes triple set bacteria collection filter incubator bottom drain port, can automatically complete sterile culture operation.

Description

Technical Field

[0001] This invention relates to the field of sterility testing technology, and more specifically to a sterility testing device for medical devices. Background Technology

[0002] Microbial collectors are commonly used sterility testing devices in medical devices, primarily for sterility and microbial limit testing of products in the pharmaceutical, medical device, and food and beverage industries. This instrument uses directional or peristaltic pressurization to trap microorganisms in the test sample on a filter membrane, which, after rinsing, is then introduced into a culture medium for aseptic cultivation.

[0003] Chinese patent (publication number: CN111254068B) discloses a microbial collection device structure, including a microbial collection device operating platform mounted on the upper surface of an isolator operating table and a main unit mounted on the lower surface of the isolator operating platform. The microbial collection device operating platform is inclined, with a lower front and higher rear. A rotating wheel is mounted on the microbial collection device operating platform, and a rotating motor is installed inside the main unit. The rotating motor drives and connects to the rotating wheel. Several rotatable pump heads are evenly distributed around the edge of the rotating wheel. A movable block that can slide towards the rotating wheel is mounted on the microbial collection device operating platform. The movable block has a left clamping groove, an arc-shaped extrusion peristaltic groove, and a right clamping groove arranged sequentially on the side facing the rotating wheel. A pump tube is clamped between the left and right clamping grooves, and the pump tube is attached to the wall of the extrusion peristaltic groove. The pump head slides over the pump tube to extrude pressure. This patent is highly dependent on existing microbial collection device technology and requires manual operation throughout the process. If the operator is not skilled or experienced, it may lead to incorrect experimental results. Meanwhile, existing bacterial collection instruments mainly use clamps to control the opening and closing of disposable elastic infusion tubes. Since three different culture media need to be added at the end, and the required delivery speed for each culture is different, it is not possible to deliver the culture media at the same time. Each culture needs to be delivered separately and the peristaltic pump power needs to be set separately, resulting in slow processing speed. Summary of the Invention

[0004] The purpose of this invention is to provide a sterile testing device for medical devices in order to solve the above problems.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0006] A sterile testing device for medical devices includes a control console. A peristaltic pump is fixedly mounted on the top of the control console. A tube clamp assembly is provided on the left side of the peristaltic pump. The tube clamp assembly includes a mounting block fixedly mounted on the peristaltic pump. Four sets of guide sleeves are fixedly mounted on the left side of the mounting block. A sleeve frame is provided on the outer side of the guide sleeves. A swing sleeve is rotatably mounted inside the sleeve frame.

[0007] An external bracket is fixedly installed on the back of the control console. An adjustment motor is fixedly installed on the top of the external bracket. A frame plate is fixedly installed on the output end of the adjustment motor. Two sets of sliding grooves are opened inside the frame plate. A first lever and a second lever are slidably connected inside the two sets of sliding grooves respectively. The first lever can move the uppermost swing sleeve, and the second lever can move all the swing sleeves. Four sets of bottle racks are set inside the frame plate.

[0008] It also includes a connecting tube assembly and a waste liquid box. The connecting tube assembly consists of three infusion tubes and one flushing tube. The flushing tube is connected to the three infusion tubes at the same time. The flushing tube passes through the uppermost guide sleeve and swing sleeve. The waste liquid box is located on the right side of the control panel and can achieve the sealing of the triple bacterial filter culture device.

[0009] Furthermore, the sleeve frame has two sets of locking holes inside, and the outer side of the swing sleeve has a positioning protrusion. When the swing sleeve is perpendicular to the guide sleeve, the positioning protrusion is engaged in the locking hole.

[0010] Furthermore, a guide plate is fixedly installed inside the outer bracket, and a guide groove is opened inside the guide plate. The first lever and the second lever extend into the guide groove. The guide groove consists of three parts: a first arc-shaped guide groove, a toggle groove, and a second arc-shaped guide groove. When the swing sleeve is perpendicular to the guide sleeve, the first arc-shaped guide groove guides the first lever and the second lever to the side of the swing sleeve closer to the mounting block, and the second arc-shaped guide groove guides the first lever and the second lever to the other side of the swing sleeve.

[0011] Furthermore, the outer sides of the first lever and the second lever are threaded with positioning nuts, and the thickness of the positioning nuts is the same as the distance between the guide plate and the frame plate.

[0012] Furthermore, three sets of adjusting outer sleeves are provided on the outer side of the second lever, and the positions of the three sets of adjusting outer sleeves correspond to the three sets of swing sleeves below.

[0013] Furthermore, a mounting plate is fixedly installed on the top of the second lever, and a hydraulic cylinder is fixedly installed on the top of the mounting plate. The top of the hydraulic cylinder is equipped with a telescopic drive, and an adjusting piston is installed inside. The adjusting piston is connected to the telescopic end of the telescopic drive. Three sets of solenoid valves are installed on the outside of the hydraulic cylinder, and the three sets of solenoid valves are connected to three sets of adjusting outer sleeves through conduits.

[0014] Furthermore, the top of the waste liquid box has three sets of filter cartridge mounting holes, and the triple bacterial filter culture device can be tightly installed in the filter cartridge mounting holes. The inside of the waste liquid box is slidably connected with two sets of sliding rods, and the outer sides of the two sets of sliding rods are hinged with three sets of connecting rods. A base is hinged between the corresponding two sets of connecting rods on the two sets of sliding rods. A stopper seat is rotatably installed on the top of the base. The stopper of the triple bacterial filter culture device can be inserted into the stopper seat. A screw is fixedly installed at the bottom of the stopper seat. Three sets of fixing screw sleeves are fixedly installed at the inner bottom of the waste liquid box. The inner wall of the fixing screw sleeves is provided with protrusions, which are inserted into the threaded grooves of the screws.

[0015] Furthermore, a drive screw is rotatably installed inside the waste liquid box. The two ends of the drive screw have opposite helical directions. Two sets of slide rods are threaded to the two ends of the drive screw respectively. The drive screw is driven by a motor. A drain pipe is provided at the end of the waste liquid box away from the drive screw.

[0016] Furthermore, both the infusion tube and the flushing tube are equipped with puncture connectors at the ends near the support plate.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. This invention uses a frame plate to drive the first and second levers to rotate. The first and second levers can push the swing sleeve to swing, thereby realizing the automatic control of different flushing tubes and infusion tubes. Through the setting of a special connecting tube group structure, the flushing tube is controlled to open, and the test solution can be injected into the triple bacterial filter culture device at the same time. The triple bacterial filter culture device filters the test solution. As the frame plate rotates, the infusion tube opens and the flushing tube closes. The waste liquid box automatically closes the drain port at the bottom of the triple bacterial filter culture device, thereby automatically completing the aseptic culture operation.

[0019] 2. The present invention adopts an integrated connecting pipe assembly, which can quickly install the connecting pipe assembly in the peristaltic pump, and the installation is simple.

[0020] 3. This invention sets three sets of adjusting outer sleeves on the outside of the second lever, changes the amount of liquid inside the adjusting outer sleeves, changes the radius of the second lever at that position, and thus controls the swing of the swing sleeve at different angles, changing the flow rate in the corresponding infusion tube. Therefore, it can simultaneously achieve the perfusion of three culture media, with high processing efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is an exploded view of the invention;

[0023] Figure 3 This is a schematic diagram of the guide plate structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the connecting pipe assembly structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the pipe clamp assembly structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the waste liquid box structure of the present invention.

[0027] Reference numerals: 1. Control console; 2. Peristaltic pump; 3. External support; 4. Adjusting motor; 5. Shelf plate; 51. Slide groove; 52. Bottle rack; 6. Guide plate; 61. First arc-shaped guide groove; 62. Actuating inclined groove; 63. Second arc-shaped guide groove; 64. First lever; 65. Second lever; 651. Mounting top plate; 652. Hydraulic cylinder; 653. Solenoid valve; 654. Adjusting outer sleeve; 7. Connecting pipe assembly; 71. Infusion pipe; 72. Flushing pipe; 8. Pipe clamp assembly; 81. Mounting block; 82. Guide sleeve; 83. Sleeve bracket; 84. Clip hole; 85. Swing sleeve; 86. Positioning protrusion; 9. Waste liquid box; 91. Filter cartridge mounting hole; 92. Fixing screw sleeve; 93. Drain pipe; 94. Slide rod; 95. Connecting rod; 96. Chassis; 97. Plug clamp seat; 98. Screw; 99. Drive screw. Detailed Implementation

[0028] 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.

[0029] Example 1, as Figures 1-6 As shown, a sterile testing device for medical devices includes a control console 1. A peristaltic pump 2 is fixedly installed on the top of the control console 1. A tube clamp assembly 8 is provided on the left side of the peristaltic pump 2. The tube clamp assembly 8 includes a mounting block 81 fixedly installed on the peristaltic pump 2. Four sets of guide sleeves 82 are fixedly installed on the left side of the mounting block 81. A sleeve frame 83 is provided on the outer side of the guide sleeve 82. A swing sleeve 85 is rotatably installed inside the sleeve frame 83.

[0030] An outer bracket 3 is fixedly installed on the back of the control panel 1. An adjustment motor 4 is fixedly installed on the top of the outer bracket 3. A frame plate 5 is fixedly installed on the output end of the adjustment motor 4. Two sets of sliding grooves 51 are opened inside the frame plate 5. A first lever 64 and a second lever 65 are slidably connected inside the two sets of sliding grooves 51 respectively. The first lever 64 can move the uppermost swing sleeve 85, and the second lever 65 can move all the swing sleeves 85. Four sets of bottle racks 52 are set inside the frame plate 5.

[0031] It also includes a connecting tube assembly 7 and a waste liquid box 9. The connecting tube assembly 7 consists of three infusion tubes 71 and one flushing tube 72. The flushing tube 72 is connected to the three infusion tubes 71 at the same time. The flushing tube 72 passes through the uppermost guide sleeve 82 and swing sleeve 85. The waste liquid box 9 is located on the right side of the control console 1, and the waste liquid box 9 can achieve the sealing of the triple bacterial filter culture device.

[0032] Furthermore, both the infusion tube 71 and the flushing tube 72 are equipped with puncture connectors at the ends near the support plate 5, making connection convenient.

[0033] For pre-installation, install the integrated connecting tube assembly 7 in the peristaltic pump 2, then pass the flushing tube 72 and the infusion tube 71 through the guide sleeve 82 and the swing sleeve 85 from top to bottom. Then push the swing sleeve 85 to the back so that all four swing sleeves 85 are perpendicular to the guide sleeve 82. The swing sleeves 85 clamp and seal the flushing tube 72 and the infusion tube 71. Then place one set of test solution storage bottles and three sets of culture medium storage bottles into the four sets of bottle racks 52 in sequence. Then connect the flushing tube 72 to the test solution storage bottle. Connect the three infusion tubes 71 to the three sets of culture medium storage bottles in sequence, and connect the other end of the three infusion tubes 71 to the triple bacterial filter culture device. Finally, install the triple bacterial filter culture device in the waste liquid box 9.

[0034] Adjust the liquid supply speed of the peristaltic pump 2 using the control console 1, start the equipment, and adjust the motor 4 to drive the frame plate 5 to rotate. The frame plate 5 then drives the first lever 64 to rotate. When the first lever 64 rotates to the position of the swing sleeve 85, the first lever 64 slides along the slide groove 51 away from the peristaltic pump 2. Therefore, the overall running trajectory of the first lever 64 is arc-shaped. The first lever 64 pushes the uppermost swing sleeve 85 to swing until it is collinear with the guide sleeve 82. At this time, the flushing tube 72 opens, and the peristaltic pump 2 causes the three infusion tubes 71 to generate suction simultaneously. The test solution enters the three infusion tubes 71 simultaneously through the flushing tube 72, and then simultaneously enters the triple bacterial filtration culture device. The collected bacterial cells are filtered in the triple bacterial filtration culture device. In the bacterial filtration culture device, the waste liquid box 9 then seals the drain port at the bottom of the triple bacterial filtration culture device. The regulating motor 4 continues to rotate. In this example, the regulating motor 4 drives the frame plate 5 to rotate 30 degrees each time. The first lever 64 pushes the uppermost swing sleeve 85 to swing to the other side and perpendicular to the guide sleeve 82. The second lever 65 simultaneously pushes the three lower sets of swing sleeves 85 to swing to be collinear with the guide sleeve 82, thereby completing the switching between the flushing tube 72 and the infusion tube 71. The peristaltic pump 2 causes the three infusion tubes 71 to generate suction at the same time. The three sets of culture solutions enter the three sets of filtration culture devices of the triple bacterial filtration culture device respectively. After the injection is completed, the triple bacterial filtration culture device can be removed to complete the automatic operation.

[0035] In the second embodiment, based on the above embodiment, two sets of locking holes 84 are provided inside the sleeve 83, and a positioning protrusion 86 is provided on the outer side of the swing sleeve 85. When the swing sleeve 85 is perpendicular to the guide sleeve 82, the positioning protrusion 86 is engaged in the locking hole 84.

[0036] By setting the positioning protrusion 86 and the locking hole 84, the pipe clamping is more stable when the swing sleeve 85 swings to be perpendicular to the guide sleeve 82.

[0037] In embodiment three, based on the above embodiments, a guide plate 6 is fixedly installed inside the outer bracket 3. A guide groove is opened inside the guide plate 6. The first lever 64 and the second lever 65 extend into the guide groove. The guide groove is composed of three parts: a first arc-shaped guide groove 61, a toggle groove 62, and a second arc-shaped guide groove 63. When the swing sleeve 85 is perpendicular to the guide sleeve 82, the first arc-shaped guide groove 61 guides the first lever 64 and the second lever 65 to the side of the swing sleeve 85 close to the mounting block 81, and the second arc-shaped guide groove 63 guides the first lever 64 and the second lever 65 to the other side of the swing sleeve 85.

[0038] The adjusting motor 4 first drives the frame plate 5 to rotate, and the frame plate 5 drives the first lever 64 and the second lever 65 to rotate simultaneously. The first lever 64 and the second lever 65 first slide along the first arc-shaped guide groove 61. The first lever 64 first moves to the side of the swing sleeve 85 mounting block 81. Then, under the guidance of the inclined groove 62, the first lever 64 pushes the swing sleeve 85 to swing and slides inside the sliding groove 51. When the first lever 64 moves into the second arc-shaped guide groove 63, the uppermost swing sleeve 85 swings to collinearity with the guide sleeve 82. At this time, the second lever 65 is still located in the first arc-shaped guide groove 61. The flushing tube 72 is opened and the infusion tube 71 is closed.

[0039] When the regulating motor 4 is running again, the first lever 64 slides along the second arc-shaped guide groove 63, pushing the uppermost swing sleeve 85 to swing in another direction, becoming perpendicular to the guide sleeve 82 again. At the same time, the second lever 65 moves to the side of the swing sleeve 85 mounting block 81. Then, under the guidance of the inclined groove 62, the second lever 65 pushes the swing sleeve 85 to swing and slide inside the sliding groove 51. When the second lever 65 moves into the second arc-shaped guide groove 63, the three sets of swing sleeves 85 below swing to collinearity with the guide sleeve 82, the flushing pipe 72 closes, and the three infusion pipes 71 open simultaneously, making the control simple.

[0040] Example 4, based on the above examples, further includes a positioning nut threadedly connected to the outer sides of the first lever 64 and the second lever 65, the thickness of which is the same as the distance between the guide plate 6 and the frame plate 5.

[0041] This design allows the first lever 64 and the second lever 65 to slide stably in the guide groove and the slide 51.

[0042] Example 5, based on the above examples, further includes three sets of adjusting outer sleeves 654 on the outer side of the second lever 65, the three sets of adjusting outer sleeves 654 corresponding to the positions of the three sets of swing sleeves 85 below.

[0043] Furthermore, a mounting plate 651 is fixedly installed on the top of the second lever 65, and a hydraulic cylinder 652 is fixedly installed on the top of the mounting plate 651. The top of the hydraulic cylinder 652 is provided with a telescopic drive, and an adjusting piston is provided inside. The adjusting piston is connected to the telescopic end of the telescopic drive. Three sets of solenoid valves 653 are provided on the outside of the hydraulic cylinder 652. The three sets of solenoid valves 653 are respectively connected to three sets of adjusting outer sleeves 654 through conduits.

[0044] Before the equipment is started, the corresponding solenoid valve 653 is opened according to the type of culture medium. The liquid in the hydraulic cylinder 652 is injected into the adjusting outer sleeve 654, and the adjusting outer sleeve 654 expands. The radius of the second lever 65 at this position increases. At the same position, the swing sleeve 85 swings at a larger angle, causing the corresponding infusion tube 71 to bend and reducing the flow rate inside the infusion tube 71. This enables the simultaneous infusion of multiple culture media, resulting in high processing efficiency.

[0045] The adjustable outer bladder 654 is composed of an elastic inner liner and an outer braided layer. After liquid is injected, the overall shape is more stable and the adjustment effect is better.

[0046] Example 6, based on the above examples, further includes: three sets of filter cartridge mounting holes 91 are provided through the top of the waste liquid box 9; the triple bacterial filter culture device can be tightly installed in the filter cartridge mounting holes 91; two sets of sliding rods 94 are slidably connected inside the waste liquid box 9; three sets of connecting rods 95 are hinged to the outer sides of the two sets of sliding rods 94; a base 96 is hinged between the corresponding two sets of connecting rods 95 on the two sets of sliding rods 94; a stopper seat 97 is rotatably installed on the top of the base 96; the stopcock of the triple bacterial filter culture device can be inserted into the stopper seat 97; a screw 98 is fixedly installed at the bottom of the stopper seat 97; three sets of fixing screw sleeves 92 are fixedly installed at the inner bottom of the waste liquid box 9; the inner wall of the fixing screw sleeves 92 is provided with protrusions, which are inserted into the threaded grooves of the screw 98.

[0047] Furthermore, a drive screw 99 is rotatably installed inside the waste liquid box 9. The two ends of the drive screw 99 have opposite spiral directions. Two sets of slide rods 94 are threaded to the two ends of the drive screw 99 respectively. The drive screw 99 is driven by a motor. A drain pipe 93 is provided at the end of the waste liquid box 9 away from the drive screw 99.

[0048] Before installing the triple bacterial filter culture device in the waste liquid box 9, insert the stopcock into the stopcock holder 97. The motor drives the drive screw 99 to run, which in turn drives the two sets of slide rods 94 to move synchronously in opposite directions and move towards the inside of the waste liquid box 9. The two sets of slide rods 94 drive the base 96 to rise through the connecting rod 95. The base 96 drives the stopcock holder 97 to rise, and the stopcock holder 97 drives the screw 98 to rise relative to the fixed sleeve 92. It should be noted that the screw 98 has a large thread pitch. When the screw 98 rises relative to the fixed sleeve 92, it can rotate under the action of the protrusion on the inner wall of the fixed sleeve 92. The screw 98 drives the stopcock to rotate, and the stopcock screws onto the bottom of the triple bacterial filter culture device, completing the automatic sealing of the triple bacterial filter culture device.

[0049] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sterile testing device for medical devices, comprising a control console (1), characterized in that, A peristaltic pump (2) is fixedly installed on the top of the control console (1). A pipe clamp assembly (8) is provided on the left side of the peristaltic pump (2). The pipe clamp assembly (8) includes a mounting block (81) fixedly installed on the peristaltic pump (2). Four sets of guide sleeves (82) are fixedly installed on the left side of the mounting block (81). A sleeve frame (83) is provided on the outside of the guide sleeve (82). A swing sleeve (85) is rotatably installed inside the sleeve frame (83). An outer bracket (3) is fixedly installed on the back of the control console (1). An adjustment motor (4) is fixedly installed on the top of the outer bracket (3). A frame plate (5) is fixedly installed at the output end of the adjustment motor (4). Two sets of sliding grooves (51) are opened inside the frame plate (5). A first lever (64) and a second lever (65) are slidably connected inside the two sets of sliding grooves (51). The first lever (64) can move the uppermost swing sleeve (85). The second lever (65) can move all the swing sleeves (85). Four sets of bottle racks (52) are set inside the frame plate (5). It also includes a connecting tube assembly (7) and a waste liquid box (9). The connecting tube assembly (7) consists of three infusion tubes (71) and one flushing tube (72). The flushing tube (72) is connected to the three infusion tubes (71) at the same time. The flushing tube (72) passes through the uppermost guide sleeve (82) and swing sleeve (85). The waste liquid box (9) is located on the right side of the control panel (1), and the waste liquid box (9) can achieve the sealing of the triple bacterial filter culture device. The sleeve (83) has two sets of locking holes (84) inside. The outer side of the swing sleeve (85) is provided with a positioning protrusion (86). When the swing sleeve (85) is perpendicular to the guide sleeve (82), the positioning protrusion (86) is engaged in the locking hole (84). The guide plate (6) is fixedly installed inside the outer bracket (3). The guide plate (6) has a guide groove inside. The first lever (64) and the second lever (65) extend into the guide groove. The guide groove is composed of three parts: the first arc-shaped guide groove (61), the actuating inclined groove (62), and the second arc-shaped guide groove (63). When the swing sleeve (85) is perpendicular to the guide sleeve (82), the first arc-shaped guide groove (61) guides the first lever (64) and the second lever (65) to the side of the swing sleeve (85) close to the mounting block (81). The second arc-shaped guide groove (63) guides the first lever (64) and the second lever (65) to the side of the swing sleeve (85) close to the mounting block (81). 5) Guided to the other side of the swing sleeve (85), the top of the waste liquid box (9) is provided with three sets of filter cartridge mounting holes (91), the triple bacterial filter culture device can be tightly installed in the filter cartridge mounting holes (91), the inside of the waste liquid box (9) is slidably connected with two sets of sliding rods (94), the outside of the two sets of sliding rods (94) is hinged with three sets of connecting rods (95), the two sets of connecting rods (95) on the two sets of sliding rods (94) are hinged with a base (96), the top of the base (96) is rotatably installed with a plug clamp seat (97), the plug of the triple bacterial filter culture device can be inserted into the plug clamp seat (97), the bottom of the plug clamp seat (97) is fixedly installed with a screw (98), the bottom of the waste liquid box (9) is fixedly installed with three sets of fixing screw sleeves (92), the inner wall of the fixing screw sleeves (92) is provided with a protrusion, the protrusion is inserted into the thread groove of the screw (98).

2. The sterile testing device for medical devices according to claim 1, characterized in that, The first lever (64) and the second lever (65) are connected by a positioning nut on their outer threads. The thickness of the positioning nut is the same as the distance between the guide plate (6) and the frame plate (5).

3. The sterile testing device for medical devices according to claim 2, characterized in that, The second lever (65) has three sets of adjusting outer sleeves (654) on its outer side, and the three sets of adjusting outer sleeves (654) correspond to the positions of the three sets of swing sleeves (85) below.

4. The sterile testing device for medical devices according to claim 3, characterized in that, The top of the second lever (65) is fixedly mounted with a mounting plate (651), and the top of the mounting plate (651) is fixedly mounted with a hydraulic cylinder (652). The top of the hydraulic cylinder (652) is provided with a telescopic drive, and an adjusting piston is provided inside. The adjusting piston is connected to the telescopic end of the telescopic drive. Three sets of solenoid valves (653) are provided on the outside of the hydraulic cylinder (652). The three sets of solenoid valves (653) are connected to three sets of adjusting outer sleeves (654) through conduits.

5. A sterile testing device for medical devices according to claim 4, characterized in that, The waste liquid box (9) is rotatably mounted inside. The two ends of the drive screw (99) have opposite spiral directions. Two sets of slide rods (94) are threaded to the two ends of the drive screw (99). The drive screw (99) is driven by a motor. A drain pipe (93) is provided at the end of the waste liquid box (9) away from the drive screw (99).

6. The sterile testing device for medical devices according to claim 1, characterized in that, Both the infusion tube (71) and the flushing tube (72) are equipped with puncture connectors at the ends of the frame plate (5).

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