Novel microorganism suction filter

Abstract

The utility model discloses a novel microorganism suction filtration machine, which comprises a shell and at least one group of suction filtration assembly, the suction filtration assembly consists of a suction filtration interface and a suction filtration pump, the suction filtration interface comprises a base and a joint, the base is arranged at the top of the shell, the joint is in threaded connection with the top of the base, and a flow guide hole is formed in the center of the base. A flow guide groove corresponding to the flow guide hole is formed in the center of the connector and is in a funnel shape. According to the microbe suction filtration machine, the sleeved joint is matched with the disposable sample cup, so that the microbe suction filtration machine is more convenient to assemble, flame sterilization treatment does not need to be carried out every suction filtration, the suction filtration and operation efficiency is improved, the risk of cross infection is reduced, the joint of the threaded connection base is more convenient to disassemble, and the service life of the microbe suction filtration machine is prolonged. And joints of different specifications can be conveniently replaced so as to be matched with sample cups of different specifications.

Description

Technical Field

[0001] The utility model relates to the technical field of microorganism detection, and particularly relates to a novel microorganism suction filter. Background Art

[0002] An endoscope is a commonly used tool in current medicine. Since it comes into contact with human body fluids or tissues during use, it must be cleaned and disinfected after use. In addition, the cleaning effect needs to be detected and verified. According to the "Hygienic Standard for Hospital Disinfection" (GB15982-2012), the inspection method for the endoscope after disinfection is the membrane filtration method. This product is mainly used for the suction filtration of endoscope microorganism samples, and of course can also be used in other fields related to the membrane filtration method.

[0003] At present, for traditional microorganism suction filters, such as a microorganism limit detector disclosed in Patent CN220703674U, the operation is relatively complex. There is a filter screen on the filter head, and the filter membrane is directly placed on the filter screen for suction filtration. After each use, it needs to be disinfected by flame, with complex operation. The filter head and the base are connected by threads, which is time-consuming during assembly. The base is not detachable and cannot be adapted to different specifications of filter heads. In addition, the start and stop of traditional microorganism suction filters need to be manually operated, which is troublesome. Summary of the Utility Model

[0004] 1. Technical problems to be solved:

[0005] In view of the above technical problems, the utility model provides a novel microorganism suction filter.

[0006] 2. Technical solutions:

[0007] A novel microorganism suction filter includes a housing and at least one set of suction filtration components. The suction filtration components are composed of a suction filtration interface and a suction pump. The suction filtration interface includes a base and a connector. The base is arranged at the top of the housing, and the connector is connected to the top of the base by threads. A diversion hole is provided at the center of the base, and a diversion groove corresponding to the diversion hole is provided at the center of the connector. The diversion groove is in a funnel shape. A first sealing ring is provided on the outer side of the top opening of the diversion hole, and the first sealing ring is installed in a first installation groove at the top of the base. The top of the connector can be sleeved with a sample cup, and a second sealing ring is provided between the connector and the sample cup. The second sealing ring is installed in a second installation groove on the side of the connector. The bottom of the diversion hole is connected to the suction pump through a hose, the suction pump is installed inside the housing, and the suction pump is connected to a liquid discharge port on the housing through a hose.

[0008] Furthermore, the suction pump is installed on a fixing plate, the fixing plate is arranged inside the housing body, and shock absorbers are provided between the fixing plate and the bottom plate of the housing body.

[0009] Preferably, the suction pump adopts a diaphragm pump.

[0010] Preferably, the outer shell is made of stainless steel mirror material.

[0011] Furthermore, a gasket is provided between the base and the outer shell. Preferably, the gasket is made of polytetrafluoroethylene material.

[0012] Furthermore, the sample cup is a disposable consumable, and a filter membrane is placed at the inner bottom of the sample cup.

[0013] As one embodiment of the present utility model, there is one set of suction filtration components. The suction filtration pump is connected to a start button. A time controller is provided between the start button and the suction filtration pump. The start button is connected to a power supply, and a power button is provided on the power supply.

[0014] As another embodiment of the present utility model, there are multiple sets of suction filtration components. The suction filtration pumps of the multiple sets of suction filtration components are connected to a relay module. The relay module is connected to a start button. A touch screen PLC integrated machine is provided between the relay module and the start button. The start button is connected to a power supply, and a power button is provided on the power supply. The touch screen PLC integrated machine is built-in with a time control module.

[0015] 3. Beneficial effects:

[0016] The microbial suction filter of the present utility model uses a socket-type joint to cooperate with a disposable sample cup, which is more convenient during assembly. There is no need to perform flame sterilization treatment every time suction filtration is carried out, improving the suction filtration and operation efficiency, reducing the risk of cross-infection. The joint with a threaded connection base is more convenient to disassemble, facilitating removal for disinfection and replacement of different specifications of joints to match different specifications of sample cups. Using a time controller or the time control module built-in in the touch screen PLC integrated machine can control the suction filtration working time, eliminating the need for manual stopping and meeting the requirements of actual operation, enhancing convenience. Description of the drawings

[0017] Figure 1 It is a schematic diagram of the internal structure of the new type of microbial suction filter with a single channel in Embodiment 1;

[0018] Figure 2 It is a schematic diagram of the combined structure of the base and the joint in Embodiment 1;

[0019] Figure 3 It is a schematic diagram of the front structure of the new type of microbial suction filter with a single channel in Embodiment 1;

[0020] Figure 4 It is a control circuit diagram of the new type of microbial suction filter with a single channel in Embodiment 1;

[0021] Figure 5 It is a schematic diagram of the front structure of the new type of microbial suction filter with three channels in Embodiment 2;

[0022] Figure 6Schematic diagram of the back structure of the new type of microbial suction filter with three channels in Example 2;

[0023] Figure 7 Schematic diagram of the internal structure of the new type of microbial suction filter with three channels in Example 2;

[0024] Figure 8 Schematic diagram of the combined structure of the base and the connector in Example 2;

[0025] Figure 9 Control circuit diagram of the new type of microbial suction filter with three channels in Example 2. Detailed implementation mode

[0026] The present utility model will be specifically described below with reference to the accompanying drawings.

[0027] Example 1:

[0028] As Figures 1-3 , a new type of single-channel microbial suction filter includes a housing 001 and a set of suction filter components. The housing 001 is made of stainless steel mirror material for easy cleaning and disinfection. The suction filter components consist of a suction filter interface and a suction pump 006. The suction filter interface includes a base 003 and a connector 002. The base 003 is set at the top of the housing 001, and the connector 002 is connected to the top of the base 003 by threading. A diversion hole is provided at the center of the base 003, and a diversion groove corresponding to the diversion hole is provided at the center of the connector 002. The diversion groove is funnel-shaped. A first sealing ring 010 is provided outside the top opening of the diversion hole. The first sealing ring 010 is installed in the first installation groove at the top of the base 003. After the connector 002 is tightened by threading, it squeezes the first sealing ring 010 for sealing to prevent liquid leakage from flowing out through the gap between the base 003 and the connector 002 at the connection position of the diversion hole and the diversion groove. The top of the connector 002 can be sleeved with a sample cup 100. A second sealing ring 009 is provided between the connector 002 and the sample cup 100. The second sealing ring 009 is installed in the second installation groove on the side of the connector 002. The installation of the second sealing ring 009 can prevent liquid leakage between the connector 002 and the sample cup 100. The bottom of the diversion hole is connected to the suction pump 006 through a hose 004. The suction pump 006 is installed inside the housing 001, and the suction pump 006 is connected to the liquid discharge port 005 on the housing 001 through the hose 004.

[0029] The sample cup 100 used in this embodiment is a disposable consumable, and a filter membrane is placed at the inner bottom of the sample cup 100. During operation, the sample cup 100 filled with liquid is sleeved on the connector 002, and the suction pump 006 is turned on to start suction filtration. During suction filtration, the microorganisms in the liquid will remain on the filter membrane, and the filtrate will be discharged from the liquid discharge port 005. After the suction is completed, the filter membrane is taken out and placed in a culture dish for culturing, and then analyzed. Since disposable consumables are used, it is not necessary to perform flame disinfection on the equipment after each sample suction filtration, which is more rapid and convenient.

[0030] When the connector 002 needs to be disinfected, since the connector 002 and the base 003 are threadedly connected, the connector 002 can be detached from the base 003, and different specifications of the connector 002 can also be replaced to match sample cups 100 of different specifications.

[0031] Preferably, the suction pump 006 is installed on the fixing plate 007. The fixing plate 007 is arranged inside the housing 001 body. A shock absorber 008 is provided between the fixing plate 007 and the bottom plate of the housing 001 body to reduce the noise when the suction pump 006 starts. Preferably, the suction pump 006 is a diaphragm pump, which can avoid the corrosion of the pump structure by the reagent during the liquid suction process.

[0032] A gasket 011 is provided between the base 003 and the housing 001. Preferably, the gasket 011 is made of polytetrafluoroethylene, which can prevent the corrosion of the solvent when cleaning the device.

[0033] It should be noted that the microbial suction filter of the present utility model further includes a control circuit, such as Figure 4 , specifically, the suction pump 006 is connected to a start button. A time controller is provided between the start button and the suction pump 006. The start button is connected to a power supply, and a power button is provided on the power supply. By using the time controller to control the operation time of the suction pump 006 (diaphragm pump), the operation is more convenient.

[0034] Embodiment 2:

[0035] Such as Figures 5-8, a new type of three-channel microbial suction filter, comprising a housing 001 and three sets of suction filter components. The housing 001 is made of stainless steel mirror material to facilitate cleaning and disinfection. The suction filter component consists of a suction filter interface and a suction pump 006. The suction filter interface includes a base 003 and a connector 002. The base 003 is arranged at the top of the housing 001, and the connector 002 is threadedly connected to the top of the base 003. A diversion hole is provided at the center of the base 003, and a diversion groove corresponding to the diversion hole is provided at the center of the connector 002. The diversion groove is funnel-shaped. A first sealing ring 010 is provided outside the top opening of the diversion hole. The first sealing ring 010 is installed in the first installation groove at the top of the base 003. After the connector 002 is tightened by threading, the first sealing ring 010 is squeezed for sealing to prevent liquid leakage from flowing out through the gap between the base 003 and the connector 002 at the connection position of the diversion hole and the diversion groove. The top of the connector 002 can be sleeved with a sample cup 100. A second sealing ring 009 is provided between the connector 002 and the sample cup 100. The second sealing ring 009 is installed in the second installation groove on the side of the connector 002. The installation of the second sealing ring 009 can prevent liquid leakage between the connector 002 and the sample cup 100. The bottom of the diversion hole is connected to the suction pump 006 through a hose 004. The suction pump 006 is installed inside the housing 001, and the suction pump 006 is connected to the liquid discharge port 005 on the housing 001 through the hose 004.

[0036] The sample cup 100 used in this embodiment is a disposable consumable, and a filter membrane is placed at the inner bottom of the sample cup 100. During operation, the sample cup 100 containing liquid is sleeved on the connector 002, and the suction pump 006 is turned on to start suction filtration. During suction filtration, the microorganisms in the liquid will stay on the filter membrane, and the filtrate is discharged from the liquid discharge port 005. After the suction is completed, the filter membrane is taken out and placed in a culture dish for cultivation, and then analyzed. Since disposable consumables are used, it is not necessary to perform flame disinfection on the equipment after each sample suction filtration, which is more rapid and convenient.

[0037] When it is necessary to disinfect the connector 002, since the connector 002 and the base 003 are threadedly connected, the connector 002 can be detached from the base 003, and different specifications of connectors 002 can also be replaced to match different specifications of sample cups 100.

[0038] Preferably, the suction pump 006 is installed on a fixing plate 007. The fixing plate 007 is arranged inside the housing 001 body. A shock absorber 008 is provided between the fixing plate 007 and the bottom plate of the housing 001 body to reduce the noise when the suction pump 006 starts. Preferably, the suction pump 006 is a diaphragm pump, which can avoid the corrosion of the pump structure by reagents during liquid suction treatment.

[0039] A gasket 011 is provided between the base 003 and the housing 001. Preferably, the gasket 011 is made of polytetrafluoroethylene material, which can prevent the corrosion of solvents when cleaning the equipment.

[0040] It should be noted that the microbial suction filter of the present utility model further includes a control circuit, such as Figure 9 , specifically, the suction pumps 006 of the three suction filter components are connected to a relay module, the relay module is connected to a start button, a touch screen PLC all-in-one machine is provided between the relay module and the start button, the start button is connected to a power supply, and a power button is provided on the power supply. The touch screen PLC all-in-one machine is built-in with a time control module. Through touch operation, the running time can be set (for example, 40s). This device has a power-off saving function, and the set time will not disappear after power-off, so there is no need to set the running time again when using it next time. In addition, it can be set through the touch screen whether the diaphragm pumps associated with the three channels run all or partially shut down. After the setting is completed, place the sample cup 100 filled with liquid. When the start button is pressed, the diaphragm pump starts, and at the same time, the countdown starts on the touch screen. When the countdown ends, the diaphragm pump stops running, and at the same time, the time control module returns to the set value. In addition, an external control interface is provided on the device, and the device can be controlled to start and stop through external components (such as: foot switch, PLC, computer, etc.).

[0041] Although the present utility model has been disclosed above with preferred embodiments, they are not used to limit the present utility model. Any person skilled in this art can make various changes or modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model should be defined by the protection scope of the claims of this application.

Claims

1. A novel microbial suction filter, characterized in that, It includes a housing and at least one set of suction filtration components. The suction filtration components are composed of a suction filtration interface and a suction filtration pump. The suction filtration interface includes a base and a connector. The base is arranged at the top of the housing, and the connector is threadedly connected to the top of the base. A diversion hole is provided at the center of the base, and a diversion groove corresponding to the diversion hole is provided at the center of the connector. The diversion groove is funnel-shaped. A first sealing ring is provided on the outer side of the top opening of the diversion hole, and the first sealing ring is installed in the first installation groove at the top of the base. The top of the connector can be sleeved with a sample cup, and a second sealing ring is provided between the connector and the sample cup. The second sealing ring is installed in the second installation groove on the side of the connector. The bottom of the diversion hole is connected to the suction filtration pump through a hose, the suction filtration pump is installed inside the housing, and the suction filtration pump is connected to the liquid discharge port on the housing through a hose.

2. The novel microbial suction filter according to claim 1, characterized in that, The suction filtration pump is installed on a fixing plate, the fixing plate is arranged inside the housing body, and shock absorbers are provided between the fixing plate and the bottom plate of the housing body.

3. A novel microbial suction filter according to claim 1 or 2, characterized in that, The suction filtration pump adopts a diaphragm pump.

4. A novel microbial suction filter according to claim 1 or 2, characterized in that The housing adopts a stainless steel mirror material.

5. A novel microbial suction filter according to claim 4, characterized in that, A gasket is provided between the base and the housing.

6. A novel microbial suction filter according to claim 5, characterized in that, The gasket adopts a polytetrafluoroethylene material.

7. A novel microbial suction filter according to claim 6, characterized in that, The sample cup is a disposable consumable, and a filter membrane is placed at the inner bottom of the sample cup.

8. A novel microbial suction filter according to claim 1, characterized in that, There is one set of suction filtration components. The suction filtration pump is connected to a start button, a time controller is provided between the start button and the suction filtration pump, the start button is connected to a power supply, and a power button is provided on the power supply.

9. The novel microbial suction filter according to claim 1, characterized in that, There are multiple sets of suction filtration components. The suction filtration pumps of the multiple sets of suction filtration components are connected to a relay module, the relay module is connected to a start button, a touch screen PLC all-in-one machine is provided between the relay module and the start button, the start button is connected to a power supply, a power button is provided on the power supply, and the touch screen PLC all-in-one machine has a built-in time control module.

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