An assembled isolator

Abstract

The utility model discloses an assembled isolator, including cabin, air inlet device and exhaust device, air inlet device includes air intake pipeline, filter equipment, air intake pipeline end of line is bended to the inner wall of cabin and forms the bended section, the air that enters the cabin forms the cyclone through the setting mode of air inlet device elbow pipe, and the air flows in the cyclone mode in the cabin, makes aerosol in the cabin in the corner or not easy to discharge position moves up, and through the exhaust device that is evenly arranged periphery, the aerosol in the cabin is all filtered and discharges without dead angle and goes out, avoids the aerosol after cabin opening and does not handle completely, and there is the problem of potential safety hazard, in addition, through the flexible cover and the hard frame support structure, realize the nimble dismounting of isolation device, easily carry, based on the negative pressure control, the airtight isolation and the high -grade personnel protection design mechanism, realize the physical isolation of high -risk operation, effectively solve the protection to the operator, and prevent the pollution to the environment.

Description

Technical Field

[0001] This invention relates to the field of isolation and protection devices, and in particular to an assembled isolator. Background Technology

[0002] Aerosols are gaseous dispersion systems composed of solid or liquid particles suspended in a gaseous medium. The density of these solid or liquid particles can differ slightly from the density of the gaseous medium, or it can differ significantly. Bioaerosols are aerosols containing biological particles, including bacteria, viruses, as well as allergenic pollen, fungal spores, fern spores, and parasite eggs. In addition to the characteristics of general aerosols, they also possess infectivity and allergenicity.

[0003] In life science research, to develop vaccines and drugs for the prevention and treatment of infectious diseases, it is necessary to conduct pathogen-related experiments, such as animal infection experiments. Bioaerosol exposure infection equipment is a scientific device specifically designed for conducting aerosol infection experiments on small animals. However, during the experiment, there is a risk of aerosol leakage. Since aerosols themselves are harmful to humans and the environment, leakage into the external environment should be minimized. Furthermore, due to the gravitational deposition of aerosols, when cleaning the internal space of the isolation device after use, it is easy to miss aerosols that have settled in corners or difficult-to-explode areas due to gravity deposition. Disassembling or moving the isolation device in such cases could easily cause injury to operators.

[0004] To address the aforementioned problems, this invention provides an assembled isolator to solve the safety hazards caused by incomplete aerosol treatment in previous isolation devices. Summary of the Invention

[0005] The purpose of this invention is to provide an assembled isolator to avoid the safety hazard caused by incomplete aerosol treatment after the cabin is opened.

[0006] To achieve the above objectives, the present invention provides the following solution:

[0007] An assembled isolator includes a cabin, an air intake device and several exhaust devices disposed on the side wall of the cabin, a half-body protective suit disposed within the cabin, and a work surface disposed within the reach of the half-body protective suit. The air intake device includes an air intake pipe extending into the cabin and sealed to the cabin, and an air intake high-efficiency filter device disposed on the outside of the cabin and communicating with the air intake pipe. The end of the air intake pipe is bent toward the inner wall of the cabin to form a bent section, and the angle θ between the centerline of the bent section and the extension of the centerline of the air intake pipe is 0-90 degrees. Several exhaust devices are disposed at the bottom of the cabin and are evenly arranged along the circumference of the inner wall of the cabin.

[0008] Preferably, the high-efficiency air filter is provided with a quick-connect flange for connecting to the air inlet.

[0009] Preferably, the exhaust device includes a first-stage high-efficiency air filtration device and a second-stage high-efficiency air filtration device. The first-stage high-efficiency air filtration device has an air inlet that is sealed to the cabin. A high-efficiency air filter is installed inside the first-stage high-efficiency air filtration device, and an exhaust port is provided downstream. The exhaust port is sealed to the second-stage high-efficiency air filtration device through a pipeline. Aerosol interfaces are provided near both ends of the connecting pipeline. The aerosol interfaces are divided into a front-end interface and a rear-end interface. The front-end interface is used for injecting aerosol upstream of the second-stage high-efficiency air filtration device, and the rear-end interface is used for downstream aerosol sampling of the first-stage high-efficiency air filtration device and upstream aerosol sampling of the second-stage high-efficiency air filtration device. The second-stage high-efficiency air filtration device has an exhaust high-efficiency filter inside, and a downstream aerosol sampling port and an exhaust fan are provided downstream. After the exhaust fan is started, the aerosol exposure isolation device is under negative pressure. Under the action of negative pressure, air from outside the isolation device enters the isolation device through the air inlet device.

[0010] Preferably, the exhaust outlet of the exhaust fan is equipped with the quick-connect flange.

[0011] Preferably, the cabin includes a rigid frame and a flexible cover covering the outside of the rigid frame, wherein the rigid frame is fixedly connected by an overlapping method; and the flexible cover has a connecting edge at a position corresponding to the rigid frame.

[0012] Preferably, the half-body protective suit has at least a double-layer structure; the half-body protective suit is connected to an air supply and filtration device, the air supply and filtration device including a blower, a filter housing, and a high-efficiency filter disposed in the filter housing, the blower being connected to the high-efficiency filter, the high-efficiency filter being connected to the half-body protective suit via an air pipe, and ventilation ports being provided at the neck or cuff positions on the half-body protective suit.

[0013] Preferably, the workbench surface has a hollowed-out section in the middle for the operator to move around in, and the bottom side of the half-body protective suit is sealed to the flange protruding at the bottom of the hollowed-out section of the workbench surface.

[0014] Preferably, the lower part of the half-body protective suit is also provided with an isolation operating glove, which is sealed to the cabin body and used to operate the bioaerosol exposure infection device placed at the bottom of the aerosol exposure isolation device.

[0015] Preferably, the cabin is equipped with a sealed door for entering and exiting the bioaerosol exposure infection equipment, and the upper part of the workbench is also equipped with a transfer device for transferring small items. The transfer device is sealed to the cabin and can be connected to a sealed bag on the outside. The items to be transferred can be placed in the sealed bag, and after being sealed by tying, they can be removed to complete the transfer of items inside the isolation device to the outside during the experiment.

[0016] Preferably, a control panel is provided on the outer wall of the cabin, and a controller is connected to the control panel. The control panel is provided with an air supply and filtration device for the half-body protective suit and start / stop buttons and adjustment devices for the exhaust fan.

[0017] The present invention achieves the following technical effects compared to the prior art:

[0018] 1. This invention uses the curved design of the air inlet device to create a swirling flow of air entering the chamber. The air flows in a swirling manner within the chamber, and in conjunction with the exhaust device located circumferentially at the bottom of the chamber, it achieves all-round, thorough aerosol treatment and discharge. This allows aerosols located in corners or difficult-to-exhaust areas within the chamber to become active, and the evenly distributed circumferential exhaust device filters and discharges all aerosols within the chamber without any dead angles, avoiding the safety hazard caused by incomplete aerosol treatment when the chamber is opened.

[0019] 2. The flexible cover and rigid frame support structure in this invention enable flexible assembly and disassembly of the isolation device and facilitate its easy transport.

[0020] 3. Based on the design mechanism of negative pressure control, airtight isolation and high-level personnel protection, this invention achieves physical isolation of high-risk operations, effectively solves the protection of operators and prevents environmental pollution. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of an assembled isolator structure according to an embodiment of the present invention is shown;

[0023] Figure 2 A schematic diagram of an assembled isolator isolation operation glove according to an embodiment of the present invention is shown;

[0024] Figure 3 A schematic diagram of an assembled isolator air inlet device according to an embodiment of the present invention is shown;

[0025] Figure 4 A schematic diagram of an assembled isolator exhaust device according to an embodiment of the present invention is shown;

[0026] The components include: 1. Flexible hood; 2. Half-body protective suit; 3. Workbench; 4. Air inlet device; 401. Air inlet; 402. Quick-connect flange; 403. High-efficiency filter; 5. Exhaust device; 501. First-stage exhaust high-efficiency filter; 511. Air inlet; 512. High-efficiency air filter; 513. Exhaust port; 502. Second-stage exhaust high-efficiency filter; 521. Exhaust high-efficiency filter; 522. Downstream aerosol sampling port; 523. Exhaust... 503. Fan; 531. Aerosol Interface; 532. Rear Interface; 6. Rigid Frame; 7. Protective Clothing Air Supply Filter Device; 701. Protective Clothing Air Supply Fan; 702. Protective Clothing Air Supply Filter Box; 703. Protective Clothing Air Supply High-Efficiency Filter; 8. Isolation Operating Gloves; 9. Sealed Door; 10. Transfer Device; 11. Control Panel; 12. Protective Clothing Mounting Base; 13. Disinfection Interface; 14. Lighting Equipment; 15. Bending Section. Detailed Implementation

[0027] 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, and 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.

[0028] The purpose of this invention is to provide an assembled isolator to avoid the safety hazard caused by incomplete aerosol treatment after the cabin is opened.

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] refer to Figures 1 to 4A modular isolator includes a cabin, an air inlet device and several exhaust devices mounted on the side wall of the cabin, a half-body protective suit mounted inside the cabin, and a work surface accessible from the half-body protective suit. The air inlet device includes an air inlet pipe extending into and sealingly connected to the cabin, and an air intake high-efficiency filter device mounted on the outside of the cabin and communicating with the air inlet pipe. The end of the air inlet pipe is bent towards the inner wall of the cabin to form a bent section. The angle θ between the centerline of the bent section and the extension of the centerline of the air inlet pipe is 0-90 degrees. Several exhaust devices... The exhaust system is located at the bottom of the cabin and is evenly distributed circumferentially along the inner wall of the cabin. This invention uses the curved design of the air inlet device to create a swirling flow of air entering the cabin. This swirling flow, combined with the exhaust system located circumferentially at the bottom of the cabin, ensures comprehensive and thorough aerosol treatment and discharge. This allows aerosols located in corners or difficult-to-exhaust areas within the cabin to become active, and the evenly distributed exhaust system filters and discharges all aerosols without any blind spots, preventing safety hazards caused by incomplete aerosol treatment when the cabin is opened.

[0031] Furthermore, the cabin is cylindrical, and the extension line of the center line of the air intake pipe intersects the center of the cabin; this design ensures that the gas entering the cabin achieves the maximum swirling effect.

[0032] refer to Figure 3 The air intake high-efficiency filtration device is sealed to the cabin body. The air intake high-efficiency filtration device is equipped with an air inlet and a quick-connect interface, which can be quickly connected to the disinfection pipeline. A high-efficiency filter is installed inside. The high-efficiency filter is selected to meet the biosafety laboratory specifications. It can be a high-efficiency / ultra-high-efficiency particulate air filter (HEPA / ULPA), or a similar filter composed of a filter membrane with a rigid shell support and an extended, pleated media. By filtering out dust and other particles outside the isolation device, it ensures that the air inside the isolation device reaches the specified cleanliness level and filters out possible contaminant particles outside the device, protecting the sample and avoiding cross-contamination between samples and during operation.

[0033] refer to Figure 3 The high-efficiency air filter is equipped with a quick-connect flange for connecting to the air inlet.

[0034] refer to Figure 1The exhaust system includes a first-stage high-efficiency air filtration device and a second-stage high-efficiency air filtration device. The first-stage high-efficiency air filtration device has an air inlet that is sealed to the cabin. A high-efficiency air filter is installed inside the first-stage high-efficiency air filtration device, and an exhaust port is located downstream. The exhaust port is sealed to the second-stage high-efficiency air filtration device via a pipeline. Aerosol interfaces are located near both ends of the connecting pipeline. Each aerosol interface has a front-end interface and a rear-end interface. The front-end interface is used for injecting aerosol upstream of the second-stage high-efficiency air filtration device, and the rear-end interface is used for downstream aerosol sampling of the first-stage high-efficiency air filtration device and upstream aerosol sampling of the second-stage high-efficiency air filtration device. The second-stage high-efficiency air filtration device has an exhaust high-efficiency filter inside, and a downstream aerosol sampling port and an exhaust fan are located downstream. When the exhaust fan is started, the aerosol exposure isolation device experiences negative pressure. Under this negative pressure, external air enters the isolation device through the air inlet device.

[0035] Furthermore, both the first-stage and second-stage exhaust high-efficiency filtration devices are equipped with high-efficiency filters, all of which are selected to meet biosafety laboratory standards. Preferably, high-efficiency / ultra-high-efficiency particulate air (HEPA / ULPA) filters, or similar filters composed of a rigid outer shell and an extended, pleated filter membrane, can be used to filter out dust and other particles outside the isolation device, ensuring that the air inside the isolation device reaches the specified cleanliness level. By filtering out hazardous particles such as aerosols that may be generated during the test, the samples are protected and cross-contamination between samples and during the operation is avoided. Furthermore, the direct release of hazardous particles into the environment during the exhaust process of the air inside the isolation device is prevented, ensuring the safety of personnel and the environment.

[0036] Furthermore, the exhaust ports of the exhaust fans are all equipped with the quick-connect flanges; when disinfecting the internal space of the isolation device and the air inlet and exhaust devices, the disinfection machine can be connected to the air inlet and exhaust port through pipelines to form a closed loop, and the exhaust fan can be used for gas circulation disinfection.

[0037] refer to Figure 1 The cabin includes a rigid frame and a flexible cover covering the outside of the rigid frame. The rigid frame is fixedly connected by an overlapping method. The flexible cover has connecting edges at positions corresponding to the rigid frame to ensure the stability of the cabin space. Combined with the flexible cabin, the support structure between the flexible cabin and the rigid frame can be guaranteed, effectively realizing flexible disassembly and easy handling. It can be arranged in operating environments with various space requirements and can be easily installed in existing laboratories.

[0038] Furthermore, the flexible cover is made of flexible materials, which are materials that can be squeezed and deformed, including but not limited to fiber fabrics such as glass cloth supplemented with foamed polyurethane or polyvinyl butyral, etc. It has toughness, elasticity and good safety, can adapt to the pressure changes in the operating room during exposure and infection operations, and can also ensure that a safe isolation environment is provided during the operation.

[0039] The further flexible material comprises, from the outside in, a thermal insulation and protective layer and an internal scratch-resistant layer; furthermore, the flexible material comprises, from the outside in, a thermal insulation and protective layer, a dimensional reinforcement layer, and an internal scratch-resistant layer; wherein, the thermal insulation and protective layer includes, but is not limited to, nylon, polyester film, and similar materials, used to ensure the operating environment temperature, and that the external environment temperature does not affect the internal operating temperature of the isolation device; the dimensional reinforcement layer includes, but is not limited to, poly(p-phenylene terephthalamide), phenylene oxide materials, and similar materials, which have low density, high strength, good toughness, high temperature resistance, and are easy to process and mold, used to ensure that the isolation device has a certain shape and strength, and to ensure the isolation effect of the operating space and the inside and outside of the device; the internal scratch-resistant layer includes, but is not limited to, poly(p-phenylene terephthalamide) and meta-polyarylamide products, which have dimensional stability and mechanical properties.

[0040] With its strong and good flexibility, this material provides excellent airtightness while effectively preventing damage to the flexible enclosure of the isolation device during isolation operations. This further avoids exposure incidents and harm to personnel and the environment, improving operational safety. Using this protective material prevents the operating environment from being affected by external temperatures, ensuring a stable isolation environment. Pressure changes inside and outside the device will not affect normal operation, providing excellent airtightness and preventing potential damage to the flexible enclosure during isolation operations, thus enhancing the safety of personnel and the environment during isolation operations.

[0041] refer to Figure 1 The half-body protective suit has at least a double-layer structure; the half-body protective suit is connected to an air supply and filtration device, which includes a fan, a filter box, and a high-efficiency filter installed in the filter box. The fan is connected to the high-efficiency filter, and the high-efficiency filter is connected to the half-body protective suit through an air pipe. The half-body protective suit has ventilation ports at the neck or cuffs; it can meet the breathing, ventilation, and protection requirements of the operators.

[0042] Furthermore, the workbench surface has a perforated section in the middle for the operator to move around in, and the bottom side of the half-body protective suit is sealed to the flange protruding below the perforated section of the workbench surface. This sealed connection between the bottom side of the half-body protective suit and the workbench surface effectively ensures isolation between the inside and outside of the operating environment, achieving operational safety and thus guaranteeing the safety of personnel and the environment.

[0043] refer to Figure 1The lower part of the half-body protective suit is also equipped with an isolation operation glove. The isolation operation glove is sealed to the cabin body and is used to operate the bioaerosol exposure infection device placed at the bottom of the aerosol exposure isolation device. In addition, the isolation operation glove can effectively increase the range of motion of personnel for isolation operation and solve the problem of isolation operation of aerosol exposure infection device.

[0044] refer to Figure 3 The cabin is equipped with a sealed door for entering and exiting the bioaerosol exposure infection equipment. The upper part of the workbench is also equipped with a transfer device for transferring small items. The transfer device is sealed to the cabin and can be connected to a sealed bag on the outside. The items to be transferred can be placed in the sealed bag, sealed by tying, and then removed to complete the transfer of items inside the isolation device to the outside during the experiment.

[0045] refer to Figure 1 The outer wall of the cabin is equipped with a control panel, and the controller is connected to the control panel. The control panel is equipped with an air supply and filtration device for the half-body protective suit and start / stop buttons and adjustment devices for the exhaust fan.

[0046] refer to Figure 1 The top of the cabin is also equipped with lighting equipment, which is controlled by a control panel and can be turned on when needed during the test.

[0047] Any adaptive changes made according to actual needs are within the scope of protection of this invention.

[0048] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An assembled isolator, characterized in that, The device includes a cabin, an air intake device and several exhaust devices mounted on the side wall of the cabin, a half-body protective suit mounted inside the cabin, and a work surface within the reach of the half-body protective suit. The air intake device includes an air intake pipe extending into the cabin and sealed to the cabin, and an air intake high-efficiency filter device mounted on the outside of the cabin and connected to the air intake pipe. The end of the air intake pipe is bent toward the inner wall of the cabin to form a bent section. The angle θ between the center line of the bent section and the extension of the center line of the air intake pipe is 0-90 degrees. Several exhaust devices are mounted at the bottom of the cabin and are evenly arranged along the circumference of the inner wall of the cabin.

2. The assembled isolator according to claim 1, characterized in that, The high-efficiency air filtration device is equipped with a quick-connect flange for connecting to the air inlet.

3. The assembled isolator according to claim 2, characterized in that, The exhaust system includes a first-stage high-efficiency air filtration device and a second-stage high-efficiency air filtration device. The first-stage high-efficiency air filtration device has an air inlet that is sealed to the cabin. A high-efficiency air filter is installed inside the first-stage high-efficiency air filtration device, and an exhaust port is provided downstream. The exhaust port is sealed to the second-stage high-efficiency air filtration device through a pipeline. The connecting pipeline is provided with aerosol interfaces near both ends. The aerosol interfaces are divided into a front-end interface and a rear-end interface. The front-end interface is used for injecting aerosol upstream of the second-stage high-efficiency air filtration device, and the rear-end interface is used for downstream aerosol sampling of the first-stage high-efficiency air filtration device and upstream aerosol sampling of the second-stage high-efficiency air filtration device. The second-stage exhaust high-efficiency filtration device is equipped with an exhaust high-efficiency filter, and a downstream aerosol sampling port and an exhaust fan are installed downstream. After the exhaust fan is started, the interior of the assembled isolator is under negative pressure. Under the action of negative pressure, the air outside the assembled isolator enters the interior of the assembled isolator through the air inlet device.

4. The assembled isolator according to claim 3, characterized in that, The exhaust outlets of the exhaust fans are all equipped with the quick-connect flanges.

5. The assembled isolator according to claim 1, characterized in that, The cabin includes a rigid frame and a flexible cover covering the outside of the rigid frame. The rigid frame is fixedly connected by an overlapping method. The flexible cover has a connecting edge at a position corresponding to the rigid frame.

6. The assembled isolator according to claim 1, characterized in that, The half-body protective suit has at least a double-layer structure; the half-body protective suit is connected to an air supply and filtration device, the air supply and filtration device includes a blower, a filter box, and a high-efficiency filter installed in the filter box, the blower is connected to the high-efficiency filter, the high-efficiency filter is connected to the half-body protective suit through an air pipe, and the half-body protective suit has ventilation ports at the neck or cuffs.

7. The assembled isolator according to claim 1, characterized in that, The workbench surface has a hollowed-out section in the middle for the operator to move around in, and the bottom side of the half-body protective suit is sealed to the flange protruding at the bottom of the hollowed-out section of the workbench surface.

8. The assembled isolator according to claim 7, characterized in that, The lower part of the half-body protective suit is also equipped with isolation operation gloves, which are sealed to the cabin body and used to operate the bioaerosol exposure infection equipment placed at the bottom of the aerosol exposure isolation device.

9. The assembled isolator according to claim 1, characterized in that, The cabin is equipped with a sealed door for entering and exiting the bioaerosol exposure infection equipment. The upper part of the workbench is also equipped with a transfer device for transferring small items. The transfer device is sealed to the cabin and can be connected to a sealed bag on the outside. Items can be placed in the sealed bag, sealed, and then removed to complete the transfer of items from inside the isolation device to the outside during the experiment.

10. The assembled isolator according to claim 1, characterized in that, A control panel is installed on the outer wall of the cabin. A controller is connected to the control panel. The control panel is equipped with an air supply and filtration device for the half-body protective suit and start / stop buttons and adjustment devices for the exhaust fan.

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