Surgical laminar flow tent

By designing a filtration and electromagnetic control system for surgical laminar flow tents, the problem of reduced air cleanliness during the inflation process of inflatable tents was solved. This enabled the maintenance of air purification and bacterial control during inflation, thereby improving the cleanliness and efficiency of operating rooms and air showers.

CN117822970BActive Publication Date: 2026-05-08SECOND MEDICAL CENT OF CHINESE PLA GENERAL HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SECOND MEDICAL CENT OF CHINESE PLA GENERAL HOSPITAL
Filing Date
2024-01-15
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Inflatable tents require the air column to be inflated before use, which can lead to a decrease in the cleanliness of the internal air and an increase in the number of bacteria.

Method used

A laminar flow tent for surgery was designed, including a base plate, an inflatable column, a filter duct, an air pump, an electromagnetic door, a laminar flow plate, and a sewage discharge structure. The air is filtered by non-woven fabric and fiber cotton in the filter duct to ensure that the air enters the inflatable column after purification. When the inflatable column is formed, it connects to the wall panel through the cavity to maintain the cleanliness of the operating room and air shower room. The electromagnetic door and sewage discharge structure are used to control the airflow direction and cleanliness.

Benefits of technology

Maintaining clean air during inflation reduces the number of bacteria, improves the efficiency and cleanliness of the tent, and ensures air quality in operating rooms and air showers.

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Abstract

The application discloses a laminar flow tent for surgery, which comprises a bottom plate, the top of the two sides of the bottom plate is connected with the two ends of an air inflation column, the air inflation column is communicated with one end of a filtering air pipe, the other end of the filtering air pipe is communicated with an air pump, an arch door plate is arranged on one side of the air inflation column, the arch door plate is provided with a u-shaped perforation, a first electromagnetic door is arranged in the u-shaped perforation, a wall plate is arranged on the other side of the air inflation column, a first laminar flow plate is arranged between the wall plate and the arch door plate, and the lower end of the first laminar flow plate is slidably connected with a second laminar flow plate, so that the problem that the air inflation column needs to be inflated before use, and the interior needs to continuously enter the external air during the inflation process, thereby reducing the air cleaning degree and increasing the number of bacteria, is effectively solved.
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Description

Technical Field

[0001] This invention relates primarily to the field of medical equipment technology, specifically to a laminar flow tent for surgery. Background Technology

[0002] Clean operating tents not only require highly clean air (the air entering the operating room must first be purified by a high-efficiency filter), but also require the ability to control the direction of airflow (i.e., using laminar flow ultra-clean devices) so that the airflow flows from the high-cleanliness surgical area to the low-cleanliness area, and carries away and removes dust particles and bacteria in the airflow; laminar flow is a fine, thin layer of airflow that is transported in the same direction at a uniform flow rate; the direction of purified airflow is divided into two types: vertical laminar flow and horizontal laminar flow.

[0003] Patent No. CN116291002A discloses an equipment management system for a laminar flow sterile surgical tent. The device uses an inflatable tent and has a vertical laminar flow operating room inside. Before using this type of inflatable tent, the air column needs to be inflated. During the inflation process, outside air will continuously enter the tent, which will reduce the cleanliness of the air and increase the number of bacteria.

[0004] Therefore, a surgical laminar flow tent is needed that allows the internal air to be purified during the inflation process to solve the above problems. Summary of the Invention

[0005] The present invention addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different solution. It primarily offers a laminar flow tent for surgery, which solves the technical problem mentioned in the background art: inflatable tents require inflation of the internal air column before use, during which external air continuously enters the interior, resulting in reduced air cleanliness and increased bacterial count.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: a surgical laminar flow tent, including a base plate, the top positions of both sides of the base plate are connected and fixed to both ends of an inflatable column, one end of the inflatable column is connected to a filter air duct, the other end of the filter air duct is connected to an air pump, an arch plate is provided on one side of the inflatable column, the arch plate has a U-shaped perforation, a first electromagnetic door is installed in the U-shaped perforation, a wall plate is provided on the other side of the inflatable column, a first laminar flow plate is provided between the wall plate and the arch plate, and the lower end of the first laminar flow plate is slidably connected to a second laminar flow plate.

[0007] The wall panel has a cavity that is connected to an air column. Multiple horizontal and through rectangular grooves are equally spaced on the side of the wall panel near the second electromagnetic door. A sewage discharge structure is installed in the rectangular grooves.

[0008] Preferably, the space between the first laminar flow plate and the air column is a laminar flow cavity, and the laminar flow cavity is connected to the cavity through an electromagnetic valve.

[0009] Preferably, a second electromagnetic door is provided behind the first electromagnetic door, and the area between the first electromagnetic door and the second electromagnetic door is an air shower room, with an operating room located behind the second electromagnetic door.

[0010] Preferably, the sewage discharge structure includes a snap-fit ​​block, which snaps into a rectangular groove. The snap-fit ​​block has a transverse through groove. One end of the through groove near the cavity is connected and fixed to one end of each symmetrically arranged reset elastic member. The other end of the reset elastic member is connected and fixed to one end of a baffle. The other end of the baffle is rotatably connected to the snap-fit ​​block.

[0011] Preferably, a groove is formed on the top of the snap-fit ​​block, the groove is slidably connected to the sliding plate, and the sliding plate is slidably connected to one side of the baffle.

[0012] Preferably, a through-hole is provided in the middle of one side of the sliding plate. The through-hole is slidably connected to the limiting rod. One end of the through-hole away from the baffle is connected and fixed to one end of the limiting elastic member. The other end of the limiting elastic member is connected and fixed to one end of the limiting rod away from the baffle.

[0013] Preferably, the filter duct is lined with non-woven fabric, and fiber cotton is placed on the side of the non-woven fabric away from the air pump.

[0014] Preferably, through holes are provided at the four corners of the base plate, and the through holes are slidably connected to the ground nails, which are then fixed to the ground.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] In this invention, an air pump inflates the filter duct, and the incoming air is filtered through the non-woven fabric and fiber cotton inside the filter duct before entering the inflation column. As the inflation column is formed, the air column connects with the cavity inside the wall panel, causing the wall panel to take shape. The large amount of air entering the cavity causes the baffle to open, allowing air to enter the operating room and air shower room. This maintains clean air in the operating room and air shower room while reducing the number of bacteria.

[0017] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 3 This is a cross-sectional schematic diagram of the sewage discharge structure in this invention;

[0021] Figure 4 This is a schematic cross-sectional view of the filter duct in this invention.

[0022] Attached diagram descriptions: 1. Inflatable column, 2. Base plate, 3. Arch panel, 4. Ground nail, 5. First electromagnetic door, 6. Filter duct, 61. Non-woven fabric, 62. Fiber cotton, 7. Air pump, 8. Wall panel, 9. Sewage discharge structure, 901. Clip block, 902. Reset elastic element, 903. Baffle, 904. Slide groove, 905. Sliding plate, 906-Limit rod, 907-Limit elastic element, 10. Air shower, 11. Operating room, 12. First laminar flow plate, 13. Second laminar flow plate, 14. Second electromagnetic door. Detailed Implementation

[0023] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the present invention. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. Rather, these embodiments are provided to make the disclosure of the present invention more thorough and complete.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Please see 1 and Figure 2A laminar flow tent for surgery includes a rectangular base plate 2. The top two sides of the base plate 2 are connected and fixed to the ends of inflatable columns 1 made of rubber. One end of the inflatable columns 1 is connected to a horizontally arranged filter duct 6, which filters the incoming air, thereby improving air cleanliness and reducing the number of bacteria. The other end of the filter duct 6 is connected to an air pump 7. An archway panel 3 is provided on one side of the inflatable columns 1. This archway panel 3 needs to be installed after the inflatable columns 1 are inflated. The archway panel 3 has U-shaped perforations for installing the first... Electromagnetic door 5, the first electromagnetic door 5 can first isolate the outside air and prevent unauthorized personnel from entering. On the other side of the inflatable column 1, a wall panel 8 is set. The wall panel 8 is also made of rubber and needs to be inflated and shaped together with the inflatable column 1. A first laminar flow plate 12 is set between the wall panel 8 and the arch panel 3. The first laminar flow plate 12 can cause the air to flow vertically downward. The lower end of the first laminar flow plate 12 is slidably connected to a second laminar flow plate 13. The second laminar flow plate 13 can control the size of the opening of the first laminar flow plate 12, thereby adjusting the air flow.

[0027] The wall panel 8 has a cavity that is connected to the air column 1. Multiple horizontal and through rectangular slots are equally spaced on the side of the wall panel 8 near the second electromagnetic door 14. A sewage discharge structure 9 is installed in the rectangular slots. The sewage discharge structure 9 can inject clean air into the air shower room 10 and the operating room 11 when the air column 1 is inflated, and discharge polluted and bacteria-laden air, thereby quickly enabling the tent to be used and improving efficiency.

[0028] The laminar flow chamber is located between the first laminar flow plate 12 and the air column 1. The laminar flow chamber is connected to the cavity via an electromagnetic valve. Once the tent is shaped and the internal air is clean and usable, the sewage discharge structure 9 is manually closed, and then the electromagnetic valve is opened, causing air to enter the laminar flow chamber. The air then flows vertically downwards through the first laminar flow plate 12. If a higher level of laminar flow is required, the electromagnetic valve can be closed, and laminar flow can also be achieved by connecting an air purification device to the laminar flow chamber.

[0029] A second electromagnetic door 14 is set behind the first electromagnetic door 5. The space between the first electromagnetic door 5 and the second electromagnetic door 14 is an air shower room 10. The operating room 11 is located behind the second electromagnetic door 14. The air shower room 10 is formed between the first electromagnetic valve and the second electromagnetic door 14. Surgical personnel can first clean and sterilize themselves in the air shower room 10 before entering the operating room 11 to perform surgery.

[0030] Through holes are made at the four corners of the base plate 2. The through holes are slidably connected to the ground stakes 4. The ground stakes 4 are fixed to the ground. The ground stakes 4 can ensure that the laminar flow tent is more stable in windy weather.

[0031] Strong reference Figure 3The sewage discharge structure 9 includes a rectangular snap-fit ​​block 901. The outer ring of the snap-fit ​​block 901 snaps into a rectangular groove. The snap-fit ​​block 901 has a transverse through groove. One end of the through groove near the cavity is connected and fixed to one end of each symmetrically arranged reset elastic member 902. The reset elastic member 902 can be a spring. The other end of the reset elastic member 902 is connected and fixed to one end of a baffle 903. The other end of the baffle 903 is rotatably connected to the snap-fit ​​block 901. By pulling the baffle through the reset elastic member 902, it can be ensured that the air column 1 has been inflated and shaped before the clean air is converted inside the operating room 11 and the air shower room 10.

[0032] The top of the snap-fit ​​block 901 has a sliding groove 904, which is slidably connected to the sliding plate 905. The sliding plate 905 is slidably connected to one side of the baffle 903. When it is not necessary to change the clean air inside the operating room 11 and the air shower room 10, the sliding plate 905 can slide down along the sliding groove 804 to block the baffle 903 and ensure that the clean air no longer flows.

[0033] A through-hole is provided in the middle of one side of the sliding plate 905. The limiting hole is slidably connected to the limiting rod 906. The end of the limiting hole away from the baffle 903 is connected and fixed to one end of the limiting elastic element 907. The other end of the limiting elastic element 907 is connected and fixed to one end of the limiting rod 906 away from the baffle 903. When it is necessary to evacuate and recycle the laminar flow tent, the limiting elastic element 907 pulls the limiting rod 906 to contact the bottom of the chute, thereby ensuring that the sliding plate 905 will not slide down and block the baffle 903. This ensures that when it is used again, it can be directly inflated to convert the air inside the operating room 11 and the air shower room 10 into clean air.

[0034] Please see Figure 4 Non-woven fabric 61 is installed inside the filter duct 6. The non-woven fabric 61 can block external dust, rainwater and other substances, protecting the air from pollution. Fiber cotton 62 is installed on the side of the non-woven fabric 61 away from the air pump 7. The fiber cotton 62 is made of ultra-fine fibers and has a high-efficiency filtration function. It can effectively filter out most dust and microorganisms and bacteria, while also having good air permeability to ensure smooth airflow.

[0035] The specific operation process of this invention is as follows: Air pump 7 inflates the filter duct 6, and the incoming air passes through the non-woven fabric 61 and fiber cotton 62 inside the filter duct 6 before entering the inflation column 1. As the inflation column 1 forms, the air column connects with the cavity inside the wall panel 8, causing the wall panel 8 to form. A large amount of air enters the cavity, causing the baffle 903 to open, allowing air to enter the operating room 11 and the air shower room 10, thus maintaining clean air in the operating room 11 and the air shower room 10. Then, the first electromagnetic door 5 and the second electromagnetic door 14 are installed, separating the operating room 11 and the isolation room. At the same time, by pulling the limiting rod 906, the sliding plate 905 can slide down along the slide groove 904 to close the baffle 903, thereby preventing air from entering. Then, the electromagnetic valve is opened to allow air to enter the laminar flow cavity between the first laminar flow plate 12 and the air column 1. The air flows vertically through the opening of the laminar flow plate, and the size of the laminar flow velocity can be controlled by the sliding of the second laminar flow plate 13 to block the opening.

[0036] The present invention has been described by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A laminar flow tent for surgery, characterized in that: Includes a base plate (2), the top positions of both sides of the base plate (2) are connected and fixed to both ends of the inflatable column (1), the inflatable column (1) is connected to one end of the filter air duct (6), the other end of the filter air duct (6) is connected to the air pump (7), an arch plate (3) is provided on one side of the inflatable column (1), the arch plate (3) has a U-shaped perforation, the U-shaped perforation is used to install the first electromagnetic door (5), a wall plate (8) is provided on the other side of the inflatable column (1), a first laminar flow plate (12) is provided between the wall plate (8) and the arch plate (3), the lower end of the first laminar flow plate (12) is slidably connected to the second laminar flow plate (13), the wall plate (8) has a cavity, the cavity is connected to the inflatable column (1), and multiple horizontal and through rectangular grooves are equidistantly provided on the side of the wall plate (8) near the second electromagnetic door (14), and a sewage discharge structure (9) is installed in the rectangular groove; The sewage discharge structure (9) includes a snap-fit ​​block (901), which snaps into a rectangular groove. The snap-fit ​​block (901) has a transverse through groove. One end of the through groove near the cavity is connected and fixed to one end of each symmetrically arranged reset elastic member (902). The other end of the reset elastic member (902) is connected and fixed to one end of a baffle (903). The other end of the baffle (903) is rotatably connected to the snap-fit ​​block (901). The top of the snap-fit ​​block (901) has a sliding groove (904), the sliding groove (904) is slidably connected to the sliding plate (905), and the sliding plate (905) is slidably connected to one side of the baffle (903); A through-hole is provided in the middle of one side of the sliding plate (905). The through-hole is slidably connected to the limiting rod (906). One end of the through-hole away from the baffle (903) is connected and fixed to one end of the limiting elastic member (907). The other end of the limiting elastic member (907) is connected and fixed to one end of the limiting rod (906) away from the baffle (903).

2. The surgical laminar flow tent according to claim 1, characterized in that: The laminar flow cavity is located between the first laminar flow plate (12) and the air column (1), and the laminar flow cavity is connected to the cavity through an electromagnetic valve.

3. The surgical laminar flow tent according to claim 1, characterized in that: A second electromagnetic door (14) is set behind the first electromagnetic door (5). The space between the first electromagnetic door (5) and the second electromagnetic door (14) is an air shower room (10). The operating room (11) is located behind the second electromagnetic door (14).

4. The surgical laminar flow tent according to claim 1, characterized in that: Non-woven fabric (61) is installed inside the filter duct (6), and fiber cotton (62) is installed on the side of the non-woven fabric (61) away from the air pump (7).

5. A laminar flow tent for surgery according to claim 1, characterized in that: Through holes are provided at the four corners of the base plate (2), and the through holes are slidably connected to the ground nails (4), and the ground nails (4) are fixedly connected to the ground.

Citation Information

Patent Citations

  • Equipment management system for laminar flow sterile operation tent

    CN116291002A

  • Novel plateau oxygen-enriched tent

    CN218623639U

  • Aerated tent room

    CN2637640Y