Annular air supply system for operating room

Abstract

The utility model discloses an annular air supply system for an operating room. The annular air supply system comprises a fresh air handling unit, an air supply pipeline, an air supply ceiling, a fresh air filtering section, a fresh air heating section and a variable air volume device. A variable air volume device is installed between the connecting parts of the air supply pipeline and the air supply branch pipes, and the air supply ceiling comprises an inner ring air supply ceiling and an outer ring air supply ceiling which annularly sleeves the inner ring air supply ceiling at intervals. According to the utility model, the wound infection of a patient in an operation can be effectively reduced, and the medical cost is saved.

Description

Technical Field

[0001] The utility model relates to a ventilation system, in particular to an air supply system suitable for an operating room. Background Art

[0002] In recent years, surgical site infections have become increasingly prominent. Bioaerosols and bacteria-carrying particles are important factors causing intraoperative or postoperative infections, so it is necessary to ensure an ultra-clean environment in the operating room.

[0003] The existing operating room air supply systems are all single laminar ceiling air supply, which intersects with the airflow in the large space of the operating room. It cannot guarantee the airflow characteristics above the surgical site, and cannot guarantee that the surgical site will not be infected during or after the operation by bioaerosols and bacteria-carrying particles. Therefore, the operation of the existing operating room air supply system needs to be improved. Summary of the invention

[0004] The utility model aims to overcome the problems existing in the prior art and provide a ring-shaped air supply system for an operating room. The system adopts an external air curtain wall and internal ultra-clean air supply to reduce the infection rate of the incision site in the operating room.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model discloses an annular air supply system for an operating room, comprising a fresh air unit installed in a fresh air machine room of a building, an air supply ceiling installed in the ceiling of the operating room, the air supply ceiling comprising an inner ring air supply ceiling and an outer ring air supply ceiling with a spacing ring sleeved outside the inner ring air supply ceiling, top plates are respectively fixed on the top surfaces of the inner ring air supply ceiling and the outer ring air supply ceiling, the opening on the bottom surface of the inner ring air supply ceiling is an inner ring air supply port and is arranged directly facing an operating bed, the opening on the bottom surface of the cavity between the inner ring air supply ceiling and the outer ring air supply ceiling is an outer ring air supply port and is arranged around the operating bed, the outer ring air supply ceiling and the inner ring air supply ceiling are hoisted and fixed on the floor slab, the surgical shadowless lamp is suspended in the middle of the inner ring air supply ceiling and fixed on the floor slab, and the left and right return air ports are respectively arranged on the wall surfaces on the left and right sides of the operating bed;

[0007] An outer ring air supply port is opened on the side wall of the outer ring air supply ceiling, and an inner ring air supply port is opened on the top wall of the inner ring air supply ceiling. The outer ring air supply port and the inner ring air supply port are respectively connected to one end of an air supply branch pipe equipped with a check valve, wherein the branch pipe connected to the outer ring air supply port is the first air supply branch pipe, and the branch pipe connected to the inner ring air supply port is the second air supply branch pipe. The other end of the first air supply branch pipe and the other end of the second air supply branch pipe are respectively connected to the air supply duct, and the inlet of the air supply duct is connected to the fresh air outlet of the fresh air unit. Variable air volume devices are respectively installed on the air supply duct between the other end of the first air supply branch pipe and the other end of the second air supply branch pipe connected to the air supply duct.

[0008] Compared with the prior art, the advantages of the present invention are:

[0009] 1. The utility model adopts a ring-shaped air supply mode, and the outer ring wind speed is higher than the inner ring wind speed, so the outer ring air supply port supplies air vertically downward to form an air curtain wall, isolating the operating table from the operating area, and preventing bioaerosols and bacteria-carrying particles in the large space outside from entering the operating area. The inner ring air supply speed is set according to the "Technical Specifications for Clean Operating Rooms in Hospitals" (GB50333-2013), which can reduce the infection of the surgical site caused by skin debris scattered by medical staff during surgery and bacteria-carrying particles. At the same time, moderate air supply can also put surgical patients in a comfortable environment.

[0010] 2. The utility model has a simple structure, good cleaning effect, and low operating power. It can be used in various types of operating rooms and can also be used in emergency rescue rooms. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the utility model and constitute a part of the specification. The practical examples of the utility model are used together to explain the utility model and do not constitute a limitation of the utility model. In the accompanying drawings:

[0012] Figure 1 This is a cross-sectional view of the utility model used in the annular air supply system of the operating room;

[0013] Figure 2 for Figure 1 A top view of the annular air supply ceiling in the air supply system shown;

[0014] Figure 3 for Figure 1 A stereoscopic view of the annular air supply ceiling in the air supply system shown in FIG. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] As shown in the figure, the utility model discloses an annular air supply system for an operating room, including a fresh air unit 1 installed in a fresh air machine room of a building, an air supply ceiling 3 installed in the ceiling of the operating room, the air supply ceiling including an inner ring air supply ceiling 5 and an outer ring air supply ceiling 4 with a spacing ring sleeved outside the inner ring air supply ceiling 5, top plates are fixed on the top surfaces of the inner ring air supply ceiling 5 and the outer ring air supply ceiling 4, respectively, the opening on the bottom surface of the inner ring air supply ceiling is an inner ring air supply port and is arranged directly opposite to an operating bed 8, the opening on the bottom surface of the cavity between the inner ring air supply ceiling 5 and the outer ring air supply ceiling 4 is an outer ring air supply port and surrounds the operating bed 8 It is arranged all around, the outer ring air supply ceiling 4 and the inner ring air supply ceiling 5 are fixed to the floor slab by screws, the surgical shadowless lamp 7 is suspended in the middle part of the inner ring air supply ceiling 5 and fixed to the floor slab, and the left and right return air vents 6 are respectively arranged at the wall surfaces 18 on the left and right sides of the operating bed 8 in accordance with the "Technical Specifications for Hospital Clean Operating Room Construction" (GB50333-2013). Preferably, the bottom surfaces of the left and right return air vents are not more than 0.5m from the ground and not less than 0.1m, which is conducive to improving the air quality in the operating room, reducing bacterial and viral contamination in the surgical operation area, and improving the experience of medical staff and patients in the operating room.

[0017] Preferably, along the fresh air flow direction, the fresh air unit 1 includes a fresh air filtering section 10 and a fresh air heating section 11 in sequence. The fresh air filtering section 10 is connected to the outside and is used to dehumidify and filter the introduced fresh air; the fresh air heating section 11 is used to heat the fresh air introduced into the operating room to maintain a comfortable temperature for the human body in the operating room. The fresh air unit can also use other existing equipment.

[0018] An outer ring air supply port 14 is provided at the side wall of the outer ring air supply ceiling, and an inner ring air supply port 15 is provided at the top wall of the inner ring air supply ceiling. The outer ring air supply port 14 and the inner ring air supply port 15 are respectively connected to one end of an air supply branch pipe equipped with a check valve 13, wherein the branch pipe connected to the outer ring air supply port 14 is a first air supply branch pipe 16, and the branch pipe connected to the inner ring air supply port 15 is a second air supply branch pipe 17. The other end of the first air supply branch pipe 16 and the other end of the second air supply branch pipe 17 are respectively connected to the air supply duct 2, and the inlet of the air supply duct 2 is connected to the fresh air unit 1. The air outlets are connected, and variable air volume devices 12 are respectively installed on the air supply duct between the other end of the first air supply branch pipe 16 and the other end of the second air supply branch pipe 17 and the connecting part with the air supply duct 2. The variable air volume device 12 can adopt the existing single air duct type VRV, which is sent into the operating area after being adjusted by the built-in air valve at the end of the device. The variable air volume device 12 is used for processing the air volume and air supply speed of the introduced fresh air, and is used to produce inconsistency in the air volume and air supply speed of the inner ring air supply ceiling and the outer ring air supply ceiling above the operating room.

[0019] The annular air supply ceiling has a filter layer 9. The filter layers 9 are respectively arranged at the inner walls of the outer ring air supply port 14 and the inner ring air supply port 15, and are configured to filter, equalize the pressure and disperse the input fresh air, so that the fresh air can meet the cleanliness requirements of the operating room and can meet the requirements that the clean fresh air enters the operating room at a steady flow rate.

[0020] The inner ring air supply ceiling 5 is composed of four rectangular inner ring air supply modules, wherein the four rectangular inner ring air supply modules are connected at the sides to form a square body structure, and the adjacent inner ring air supply modules are connected to each other by rivets. The entire inner ring air supply ceiling is fixed to the floor slab by screws, and a connection space between the air supply module and the floor slab is reserved for the air supply duct and the inner ring air supply module; the outer ring air supply ceiling 4 is composed of four long rectangular outer ring air supply modules, which are arranged around the inner ring air supply ceiling, and the adjacent long rectangular outer ring air supply modules are connected to each other by rivets. To make it firm and reliable, the surrounding long outer ring air supply module is connected to the inner ring air supply module by rivets. The four inner inner ring air supply modules and the four outer outer ring air supply modules together form an annular air supply ceiling, which can make the air supply volume and air supply speed more uniform.

[0021] During use, the air supply speed of the outer ring air supply ceiling 4 can be adjusted to maintain at 0.35-0.45m / s. The outer ring air supply ceiling 4 maintains vertical air supply downward to form an air curtain wall, isolating the surgical area from the large space of the operating room, and preventing pollutants from the large space outside from entering the surgical area. The air supply speed of the inner ring air supply ceiling 5 is maintained at 0.20-0.25m / s in accordance with the "Technical Specifications for Clean Operating Room Buildings in Hospitals" (GB50333-2013), which can control and reduce the infection of the surgical incision site by skin debris shed by medical staff during surgery and bioaerosols generated by patients or medical staff themselves.

[0022] The mechanisms, components and parts not specifically described in the present invention are all existing structures in the prior art and can be directly purchased from the market.

[0023] In the description of the present utility model, it is necessary to understand that the terms "upper", "lower", "left", "right", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to has a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ring-shaped air supply system for an operating room, comprising a fresh air unit installed in a fresh air machine room of a building, characterized in that: The air supply ceiling is installed in the ceiling of the operating room, and the air supply ceiling includes an inner ring air supply ceiling and an outer ring air supply ceiling with a spacing ring sleeved outside the inner ring air supply ceiling. Top plates are fixed on the top surfaces of the inner ring air supply ceiling and the outer ring air supply ceiling respectively. The opening on the bottom surface of the inner ring air supply ceiling is the inner ring air supply port and is arranged directly facing the operating bed. The opening on the bottom surface of the cavity between the inner ring air supply ceiling and the outer ring air supply ceiling is the outer ring air supply port and is arranged around the operating bed. The outer ring air supply ceiling and the inner ring air supply ceiling are hoisted and fixed on the floor slab, the surgical shadowless lamp is suspended in the middle of the inner ring air supply ceiling and fixed on the floor slab, and the left and right return air ports are respectively arranged on the wall surfaces on the left and right sides of the operating bed; An outer ring air supply port is opened on the side wall of the outer ring air supply ceiling, and an inner ring air supply port is opened on the top wall of the inner ring air supply ceiling. The outer ring air supply port and the inner ring air supply port are respectively connected to one end of an air supply branch pipe equipped with a check valve, wherein the branch pipe connected to the outer ring air supply port is the first air supply branch pipe, and the branch pipe connected to the inner ring air supply port is the second air supply branch pipe. The other end of the first air supply branch pipe and the other end of the second air supply branch pipe are respectively connected to the air supply duct, and the inlet of the air supply duct is connected to the fresh air outlet of the fresh air unit. Variable air volume devices are respectively installed on the air supply duct between the other end of the first air supply branch pipe and the other end of the second air supply branch pipe connected to the air supply duct.

2. The annular air supply system for an operating room according to claim 1, characterized in that: The inner ring air supply ceiling is composed of four rectangular inner ring air supply modules, wherein the four rectangular inner ring air supply modules are connected at the sides to form a square structure, adjacent inner ring air supply modules are connected to each other by rivets, and the entire inner ring air supply ceiling is fixed to the floor by screws; the outer ring air supply ceiling is composed of four long rectangular outer ring air supply modules, which are arranged around the inner ring air supply ceiling, and adjacent long rectangular outer ring air supply modules are connected to each other by rivets, and the four inner inner ring air supply modules and the four outer outer ring air supply modules together form an annular air supply ceiling.

3. The annular air supply system for an operating room according to claim 1 or 2, characterized in that: The bottom surface of the left and right return air outlets shall not exceed 0.5m and not be lower than 0.1m from the ground.

4. The annular air supply system for an operating room according to claim 1 or 2, characterized in that: Along the fresh air flow direction, the fresh air unit includes a fresh air filtering section and a fresh air heating section in sequence.

5. The annular air supply system for an operating room according to claim 2, characterized in that: The annular air supply ceiling has a filter layer, and the filter layer is respectively arranged on the inner wall of the outer ring air supply port and the inner ring air supply port.

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