CN108114541A - Aseptic operating room filter - Google Patents

Abstract

The invention relates to the technical field of medical equipment, in particular to a sterile operating room filter. It includes a box body, which is provided with an air inlet hole for communicating with the outside world and a first air outlet hole for communicating with the cabin. The box body is provided with a purification device and a laminar flow generating device, and the purification device is arranged along the air inlet hole. The direction to the first air outlet includes the primary filter, the ultraviolet sterilizing device and the high-efficiency air filter in sequence. The primary filter, the ultraviolet sterilizing device and the high-efficiency air filter are all slidably connected with the side wall of the box body, and there is also a maintenance port on the box body , Pre-filter, ultraviolet sterilizer and high-efficiency air filter can all slide out from the maintenance port. The sterile operating room filter provided by the invention can solve the problem of inconvenient maintenance of filters in existing sterile operating rooms.

Description

Sterile Operating Room Filters

technical field

The invention relates to the technical field of medical equipment, in particular to a sterile operating room filter.

Background technique

In the rescue scene, it is often necessary to quickly establish a sterile operating room isolated from the outside world to treat or isolate the wounded, so as to prevent the wound infection of the wounded from threatening life. The sterile operating room usually includes a main cabin and an airlock room, which need to be equipped with corresponding disinfection and filtration equipment To sterilize and disinfect the environment in cabins and airlocks.

Most of the current aseptic operating rooms use a laminar flow filter device that can control the flow direction of the airflow to form a positive pressure environment in the cabin and form a small, thin layer of airflow that flows in the same direction at a uniform flow rate to make the airflow Flow from an area with high cleanliness to an area with low cleanliness, take away and discharge dust particles (dust particles) and bacteria in the airflow, and keep the cabin environment free from pollution. The laminar flow filter device needs to take out the filter element after working for a long time. For replacement or cleaning, the existing laminar flow filter device must be disassembled to take out the filter element every time it is maintained, which is very inconvenient.

Contents of the invention

The present invention intends to provide a filter for a sterile operating room, which can solve the problem of inconvenient maintenance of filters in the existing sterile operating room.

In order to solve the above technical problems, this patent provides the following basic technical solutions:

A sterile operating room filter, including a box body, the box body is provided with an air inlet hole for communicating with the outside world and a first air outlet hole for communicating with the cabin, and the box body is provided with a purification device and a layer The flow generation device and the purification device are used to sterilize and filter the gas entering the air inlet. The purification device includes a primary filter, an ultraviolet sterilizing device and a high-efficiency air filter in sequence along the direction from the air inlet to the first air outlet. The primary filter, the ultraviolet sterilizing device and the high-efficiency air filter are all slidably connected to the side wall of the box, and the box is also provided with a maintenance port, and the primary filter, the ultraviolet sterilizing device and the high-efficiency air filter can be maintained from slipped out of the mouth.

In the technical solution of the present invention, by setting the maintenance port, and making the primary filter, the ultraviolet sterilizing device and the high-efficiency air filter slidably connected with the side wall of the box body, the primary filter, the ultraviolet sterilizing device and the high-efficiency air filter can all be slid from the maintenance port. Out, similar to the design of the drawer, the filter element can be pulled out from the box very conveniently, which is convenient for the staff to perform maintenance work such as replacement or cleaning.

Further, a handle is provided at one end of the primary filter, the ultraviolet sterilizing device and the high-efficiency air filter near the maintenance port.

It is convenient for personnel to pull out the primary filter, ultraviolet sterilizing device and high-efficiency air filter from the maintenance port for easy maintenance.

Further, the laminar flow generating device includes a first fan, an air pressure control system and a laminar flow plate, the first fan is used to inhale air from the air inlet hole and fill the cabin with air through the first air outlet hole, the The laminar flow plate is used to form a laminar flow of the air sucked by the first fan, and the air pressure control system is used to control the air pressure of the cabin by controlling the air volume of the first fan.

The laminar flow is generated by the laminar flow generating device to purify the environment in the cabin, and the air pressure control system ensures that the cabin is in a positive pressure state to prevent the outside gas from polluting the cabin.

Further, the box body is also provided with a second air outlet hole for communicating with the airlock chamber, and the box body is also provided with an airlock chamber airflow generating device, and the airlock chamber airflow generating device includes a second fan, The second fan is used to inhale air from the air inlet hole and fill the air lock chamber with air through the second air outlet hole, and the air pressure control system is also used to control the air pressure of the air lock chamber by controlling the air volume of the second fan .

The airlock chamber airflow generating device inflates clean gas into the airlock chamber to purify the environment of the airlock chamber, and the pressure control device can make the air pressure in the airlock chamber lower than that of the cabin to prevent the airflow from entering the cabin from the airlock chamber.

Further, the air pressure control system includes a sensor and an air pressure controller, the sensor includes an air pressure sensor and a personnel entry and exit sensor, the air pressure sensor is used to detect the air pressure of the cabin and the airlock, and the personnel entry and exit sensor is used to detect The air pressure controller is used to control the air volume of the first fan and the second fan according to the data of the sensor.

Personnel entry and exit can be detected through the personnel entry and exit sensing device, which is convenient for the system to perform automatic processing when personnel enter and exit, so as to ensure that the cabin environment is not polluted.

Further, the air pressure controller can increase the air pressure of the air lock chamber when it is detected that people enter and exit between the outside and the air lock chamber, and the air pressure controller can decrease the air pressure of the air lock chamber when it detects that people enter and exit between the air lock chamber and the cabin. Airlock air pressure.

When the air pressure controller detects that people enter the airlock chamber from the outside or enter the outside world from the airlock chamber, the air pressure in the airlock chamber is increased to prevent the outside gas from entering the airlock chamber; When the chamber enters the cabin, reduce the air pressure in the airlock to prevent the airflow from the airlock from entering the cabin.

Further, the air pressure control system also includes an alarm device, which can detect the cabin air pressure and the air pressure of the air lock room when a person enters and exits between the air lock room and the cabin, and the alarm device can detect the air pressure in the cabin An alarm is issued when the air pressure is less than that of the airlock.

Prevent the staff from entering and leaving the cabin when the air pressure in the cabin is lower than that of the airlock chamber, polluting the cabin environment.

Further, universal wheels are provided at the bottom of the box. Convenient mobile deployment.

Further, the universal wheel is a self-locking universal wheel. Facilitates securing the entire unit after deployment.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of a sterile operating room filter of the present invention.

Detailed ways

The present invention will be described in further detail below by means of specific embodiments:

Explanation of reference signs: box body 1, cover plate 2, air inlet hole 3, first air outlet hole 4, primary filter 5, high efficiency filter 6, ultraviolet sterilizing device 7, handle 8, guide groove 9, guide bar 10, A laminar flow generating device 11 and an airlock chamber airflow generating device 12 .

As shown in Figure 1, the sterile operating room filter of this embodiment includes a box body 1, and the box body 1 is provided with an air inlet hole 3 for communicating with the outside world, a first air outlet hole 4 for communicating with the cabin, The second air outlet for communicating with the airlock chamber and the maintenance port for maintaining the equipment in the box body 1. The box body 1 is provided with a purification device, a laminar flow generating device 11 and an airlock chamber airflow generating device 12;

The purification device includes a prefilter 5, an ultraviolet sterilizing device 7 and a high-efficiency air filter along the direction from the air inlet 3 to the first air outlet 4, and the prefilter 5, the ultraviolet sterilizing device 7 and the high-efficiency air filter all adopt existing The entire sterile operating room filter adopts a drawer design, the primary filter 5, the ultraviolet sterilizing device 7, the high-efficiency air filter, the laminar flow generating device 11 and the airlock chamber airflow generating device 12 are all a separate cabinet 1 The "drawer" that is slidably connected to the side wall is provided with a guide bar 10 for each "drawer" to slide on the side wall of the box body 1, and a guide groove 9 is provided on the shell of each "drawer", the primary filter 5, ultraviolet light The sterilization device 7, high-efficiency air filter, laminar flow generating device 11 and airlock airflow generating device 12 can all slide out from the maintenance opening, and the bottom of the box body 1 is provided with self-locking universal wheels to facilitate the movement and deployment of the purification device.

In order to facilitate personnel to extract the primary filter 5, ultraviolet sterilizing device 7, high-efficiency air filter, laminar flow generating device 11 and airlock chamber airflow generating device 12 from the maintenance port, a handle 8 is provided at the end of these devices near the maintenance port.

The laminar flow generation device 11 includes a first blower fan, an air pressure control system and a laminar flow plate, the first blower fan is used to inhale air from the air inlet hole 3 and fills the cabin with air through the first air outlet hole 4, and the laminar flow plate is used for The air inhaled by the first fan forms a laminar flow, and the air pressure control system is used to control the cabin air pressure by controlling the air volume of the first fan.

The air lock chamber airflow generating device 12 includes a second fan, the second fan is used to inhale air from the air inlet hole 3 and fill the air lock chamber with air through the second air outlet hole, and the air pressure control system is also used to control the air flow of the second fan The air volume controls the air pressure in the airlock chamber.

The air pressure control system includes a sensor and an air pressure controller. The sensor includes an air pressure sensor and a personnel entry and exit sensor. The air pressure sensor is used to detect the air pressure of the cabin and the airlock. It is used to control the air volume of the first fan and the second fan according to the data of the sensor.

In this embodiment, the air pressure controller is a single-chip microcomputer, and the personnel entry and exit sensors are arranged on the doors of the airlock chamber and the cabin. The access control between is called the first access control. The air pressure controller can judge whether someone wants to open the first access control and the second access control and the opening status of the first and second access control according to the signal of the personnel entering and exiting the sensor, and then obtain the personnel entering and exiting data. The personnel entry and exit sensors include the first pressure sensor set on the door handle of the first access control door and the second access control door and the second pressure sensor set on the door frame. The air pressure controller can detect whether there is a person holding the door through the first pressure sensor handle, so as to detect whether someone wants to open a certain access control, and the air pressure controller can detect whether the access control is pressed on the door frame through the second pressure sensor, and then judge whether the access control is opened.

The air pressure controller can increase the air pressure of the air lock chamber when it detects that people enter and exit between the outside and the air lock chamber, and the air pressure controller can reduce the air pressure in the air lock chamber when it detects that people enter and exit between the air lock chamber and the cabin. The controller is equipped with the target air pressure of the air lock chamber and the target value of the cabin air pressure. The air pressure controller realizes the control of the air lock chamber and the cabin air pressure through the PID algorithm according to the air pressure target value and the detection value of the air pressure sensor.

The sensor also includes an air quality detection device. The air quality detection device is used to detect the air quality in the air lock chamber. The air pressure controller is connected with the signal of the air quality detection device. Larger air volume of the second fan.

The air quality detection device is installed on the top of the airlock chamber. The air quality detection device includes a collection pipe, and a piston is arranged in the collection pipe. The collection pipe above the piston is filled with disinfectant, and the side wall of the collection pipe above the piston is provided with a liquid spray port. The side wall of the collection pipe below is provided with an air inlet and an air outlet, both of which are provided with a one-way valve, and an air quality sensor is installed at the air outlet, and the push rod of the piston is connected to the door shaft of the second access control. Power connection, when the second access control is opened, it can drive the piston to move upward, so that the disinfectant can be sprayed from the liquid spray port, and when the second access control is closed, it can drive the piston to move downward.

Adjust the air volume of the second fan according to the air quality to quickly purify the air in the airlock. Through the collection tube and the piston, when the second access control is opened, the disinfectant can be automatically sprayed to disinfect the personnel entering the airlock chamber; since the air in the airlock chamber is relatively clean and the degree of pollution is low, if the traditional air quality sensor cannot Accurately measure the air quality. In the above solution, the piston can collect gas from the air intake hole and spray it onto the air quality sensor when the second door is closed, increasing the amount of air that the air quality sensor touches, which in turn helps to improve the detection accuracy .

The air pressure control system also includes an alarm device. The alarm device includes a warning light, a buzzer and an alarm controller. The alarm controller is connected with the air pressure controller signal, and can obtain cabin and airlock chamber air pressure and personnel entry and exit data and information from the air pressure controller. The state of the access control, the alarm controller can compare and judge the cabin air pressure and the air lock chamber air pressure when the person enters and exits the air lock chamber from the first access control, and if the cabin air pressure is lower than the air lock chamber air pressure, the warning light and the buzzer will be controlled to send out an alarm . The alarm controller can detect the opening status of another door when a person holds the door handle of one door, and if the other door has been opened, an alarm will be issued to prevent people from opening the two doors at the same time.

The above is only an embodiment of the present invention, and the common knowledge such as the specific structure and characteristics known in the scheme is not described here too much. Those of ordinary skill in the art know all the common technical knowledge in the technical field to which the invention belongs before the filing date or the priority date , can know all the existing technologies in this field, and have the ability to apply conventional experimental methods before this date. Those of ordinary skill in the art can improve and implement this scheme based on their own abilities under the inspiration given by this application. Some typical The known structures or known methods should not be an obstacle for those of ordinary skill in the art to implement the present application. It should be pointed out that for those skilled in the art, under the premise of not departing from the structure of the present invention, several modifications and improvements can also be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation of the present invention. Effects and utility of patents. The scope of protection required by this application shall be based on the content of the claims, and the specific implementation methods and other records in the specification may be used to interpret the content of the claims.

Claims (9)

1. Sterile operating room filter, including a box body, the box body is provided with an air inlet hole for communicating with the outside world and a first air outlet hole for communicating with the cabin, and the box body is provided with a purification device And laminar flow generation device, it is characterized in that: described purifying device comprises primary filter, ultraviolet sterilizing device and high-efficiency air filter successively along the direction from air inlet hole to first air outlet, and described primary filter, ultraviolet sterilizing device and The high-efficiency air filters are all slidably connected with the side walls of the casing, and the casing is also provided with a maintenance port, and the primary filter, the ultraviolet sterilizing device and the high-efficiency air filter can all slide out from the maintenance port. 2. The sterile operating room filter according to claim 1, wherein a handle is provided at one end of the primary filter, the ultraviolet sterilizing device and the high-efficiency air filter near the maintenance port. 3. The sterile operating room filter according to claim 1, wherein the laminar flow generating device comprises a first blower fan, an air pressure control system and a laminar flow plate, and the first blower fan is used for blowing air from the air inlet Inhale air and fill the cabin with air through the first air outlet hole, the laminar flow plate is used to form a laminar flow of the air sucked by the first fan, and the air pressure control system is used to control the cabin by controlling the air volume of the first fan air pressure. 4. The aseptic operating room filter according to claim 3, characterized in that: the box is also provided with a second air outlet for communicating with the airlock chamber, and the box is also provided with an airlock A chamber airflow generation device, the airlock chamber airflow generation device includes a second fan, the second fan is used to suck air from the air inlet hole and fill the airlock chamber with air through the second air outlet hole, and the air pressure control The system is also used to control the air pressure of the air lock chamber by controlling the air volume of the second fan. 5. The sterile operating room filter according to claim 4, characterized in that: the air pressure control system includes a sensor and an air pressure controller, and the sensor includes an air pressure sensor and a personnel entry and exit sensor, and the air pressure sensor is used to detect The air pressure of the cabin and the airlock, the personnel entry and exit sensor is used to detect the personnel entry and exit data of the airlock and the cabin, and the air pressure controller is used to control the air volume of the first fan and the second fan according to the data of the sensor. 6. The sterile operating room filter according to claim 5, characterized in that: the air pressure controller can increase the air pressure of the air lock chamber when it is detected that people enter and exit between the outside world and the air lock chamber, and the air pressure The controller is able to reduce the airlock air pressure when it detects that people are entering or exiting between the airlock and the cabin. 7. The sterile operating room filter according to claim 6, wherein the air pressure control system also includes an alarm device, which can control the air pressure of the cabin when personnel enter and exit between the airlock chamber and the cabin. and the air pressure of the airlock chamber, and the alarm device can send an alarm when detecting that the air pressure in the cabin is lower than the air pressure in the airlock chamber. 8. The sterile operating room filter according to any one of claims 1 to 7, characterized in that: universal wheels are provided at the bottom of the box. 9. The sterile operating room filter according to claim 8, characterized in that: the universal wheels are self-locking universal wheels.