CN107676918B - A wind curtain protection device for medical staff to prevent cross-infection - Google Patents

Abstract

The invention relates to a wind curtain anti-cross infection device for medical care personnel, which comprises a bar-shaped wind port, a pipeline and a purification device (6); the purification device (6) is sequentially provided with a coarse filter screen (7), a fan (8), an active carbon filter screen (10), an ultraviolet germicidal lamp (11), a nano titanium dioxide photocatalyst screen (13), a HEPA filter screen (14) and a silencer (15) along the airflow direction; the pipeline adopts the liftable sleeve pipe in bar wind gap department, but the liftable sleeve pipe passes through flexible hose with purifier and is connected, can realize the length adjustment of wind gap altitude mixture control and pipeline. The invention arranges an L-shaped air curtain between the patient and the medical care personnel, which can effectively isolate the bacteria and viruses exhaled by the patient and can remove the bacteria and viruses exhaled by the patient and carry out sterilization and disinfection treatment at once. The purification device is arranged below the examination table through the damping isolation device, and vibration and noise generated by the operation of the fan are reduced.

Description

A wind curtain protection device for medical staff to prevent cross-infection

technical field

The invention is a protection device for protecting medical staff from bacteria or virus infection carried by patients, specifically a disinfection and isolation device for preventing cross-infection of medical staff for the respiratory clinic. The invention relates to the technical field of air purification equipment.

Background technique

Every year, a large number of media reports that many places in the world are deeply affected by infectious viruses, such as SARS, Ebola, H1N1 influenza virus, etc. Every large-scale spread of infectious viruses will cause people to panic. The prevention and control of the disease is also a major problem to be solved urgently in recent years. The source of infection of respiratory infectious diseases is mainly patients carrying infectious disease pathogens, and there are four main modes of transmission of respiratory disease pathogens: direct contact, indirect contact, (short-distance) droplet transmission and (short-distance and long-distance) airborne transmission . According to the literature review, airborne short-distance transmission is more threatening than long-distance transmission, so it is of great significance to study the transmission of pathogens within about 1.5m around the human body. The spread of pathogens around patients makes medical staff vulnerable to infection by patients during the medical treatment process. Every year, many medical staff are infected by patients and even die. The isolation and protection of respiratory medical staff is particularly important. It is a key problem in the prior art how to achieve remarkable results by only adding a set of isolating devices without carrying out overall transformation (such as transforming into a negative pressure isolation consulting room or ward) under the existing conditions of the consulting room.

Chinese utility model patent "A Diagnosis Table for Respiratory Diseases with Safety Protection Devices for Medical Staff" (application number: 201520919836.1) discloses a diagnosis table for respiratory diseases with safety protection devices for medical staff. The tabletop is provided with a tabletop filter assembly for suction filtration. During the verbal communication between fever patients and medical staff, the countertop filter component sucks away the saliva exhaled by fever patients that may carry viruses and bacteria, and immediately performs disinfection and disinfection treatment to prevent the saliva from spreading to medical staff or into the air in the consulting room at the same time It can also generate a wind wall to isolate the patient's saliva. The disadvantage of the device is that the existing diagnosis table and chairs need to be replaced, and the device occupies a large space, which affects the placement of the tabletop equipment of the diagnosis table. The device of the present invention does not need to replace the existing examination table and chairs, and the isolation effect can be achieved by fixing the equipment to the bottom and both ends of the table top of the examination table, and the bacteria and viruses produced by the patient can be treated in time, without taking up too much space, simple and practical .

Contents of the invention

Technical problem: The present invention aims to provide an air curtain protection device for medical staff to prevent cross-infection. The device is a protective device for protecting medical staff from bacterial or viral infections carried by patients. health of healthcare workers.

Technical solution: An air curtain protective device for medical staff to prevent cross-infection of the present invention includes a strip tuyere, a pipeline and a purification device; the purification device is sequentially provided with a coarse-effect filter, a fan, an activated carbon filter, Ultraviolet germicidal lamp, nano-titanium dioxide photocatalyst net, HEPA filter and muffler; the purification device is provided with two air outlets, respectively connected to the second air duct and the third air duct through the first flexible hose and the second flexible hose; the second The air outlet end of the air duct is connected to the second lifting sleeve air duct, and a long side strip air supply port is arranged on the second lifting sleeve air duct; the air outlet end of the third air duct is connected to the third lifting sleeve air duct, and the third The air duct of the lifting casing is provided with a short-side strip-shaped air supply port; the air inlet of the purification device is connected to the first air duct through a canvas soft joint, and the air inlet of the first air duct is connected to the first air duct of the lifting casing. A long-side strip-shaped air return port and a short-side strip-shaped air return port are respectively provided on the air duct of the lifting casing.

in:

The long-side strip-shaped air return port and the long-side strip-shaped air supply port are arranged oppositely, and the long-side strip-shaped air return port and the long-side strip-shaped air supply port form the long side of the "L"-shaped air curtain; the short-side strip-shaped air return port and the short The side strip-shaped air supply ports are arranged oppositely, and the short-side strip-shaped air return port and the short-side strip-shaped air supply port form the short side of the "L"-shaped air curtain; the air curtain formed between the strip-shaped air ports is "L"-shaped.

The strip-shaped air outlets are two air supply outlets arranged on the air ducts at both ends of the device, that is, the long-side strip-shaped air supply outlet and the short-side strip-shaped air supply outlet, and the two return air outlets are the long-side strip-shaped air return outlet and the short-side strip. Shaped return air outlet, and the height of the air outlet can be adjusted by itself with the lifting casing air duct.

The inlet and outlet of the purification device are provided with flexible hoses, and the flexible hoses can be freely pulled up according to the length of the diagnosis table.

The ultraviolet sterilizing lamp is a circular lamp tube with a polished aluminum film around it, which can reflect the light emitted by the ultraviolet sterilizing lamp multiple times.

The ultraviolet germicidal lamp emits ultraviolet rays with a dominant wavelength of 254nm.

The fan is a low-noise variable frequency centrifugal fan, and the fan speed can be adjusted freely.

The coarse-effect filter screen and the active carbon filter screen can be disassembled, washed and replaced freely.

The air ducts of the lifting casing, the connecting air ducts and the flexible hoses are all circular air ducts.

Beneficial effects: compared with existing inventions and technologies, the present invention has the following characteristics:

1. The device can adapt to various sizes of diagnosis tables. The lifting sleeve air duct can realize the height adjustment of the strip air outlet, and the flexible hose can realize the adjustment of the length of the pipe, which is flexible to use;

2. The structure of the device is simple, and there is no need to replace the existing diagnosis table, but it takes up too much space on the table top of the diagnosis table;

3. The device adopts low-noise frequency conversion centrifugal fan and muffler. The vibration of the fan is weakened by rubber shock absorbers in the installation, and the operation is stable and quiet, which does not affect the normal diagnosis and treatment process of medical staff.

Description of drawings

The accompanying drawings are intended to more fully describe embodiments of the invention, are for illustration and illustration only, and are not intended to limit the scope of the invention.

Fig. 1 is the structural representation of device of the present invention;

Fig. 2 is a top view of the device of the present invention;

Fig. 3 is the installation schematic diagram of device of the present invention;

Fig. 4 is the implementation effect drawing of device of the present invention;

In the figure, there are: the first lifting casing air duct 1.1, the second lifting casing air duct 1.2, the third lifting casing air duct 1.3, the long-side strip-shaped air return port 2.1, the short-side strip-shaped air return port 2.2, and the long-side strip Shaped air outlet 2.3, short strip air outlet 2.4, first air duct 3.1, second air duct 3.2, third air duct 3.3, first flexible hose 4.1, second flexible hose 4.2, canvas soft joint 5, Purification device 6, coarse filter screen 7, fan 8, fan motor 9, activated carbon filter screen 10, ultraviolet germicidal lamp 11, polished aluminum film 12, nano-titanium dioxide photocatalyst net 13, HEPA filter screen 14, muffler 15.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in the structural representation of the device of the present invention shown in Figure 1, a kind of air curtain anti-cross-infection device for medical personnel of the present invention comprises strip tuyere, pipeline and cleaning device 6; Described cleaning device 6 is arranged successively along the airflow direction There are coarse filter screen 7, fan 8, activated carbon filter screen 10, ultraviolet germicidal lamp 11, nano-titanium dioxide photocatalyst screen 13, HEPA filter screen 14 and muffler 15; The pipe 4.1 and the second flexible hose 4.2 are connected to the second air duct 3.2 and the third air duct 3.3; the air outlet end of the second air duct 3.2 is connected to the second lifting sleeve air duct 1.2, on the second lifting sleeve air duct 1.2 There is a long-side strip-shaped air supply port 2.3; the air outlet end of the third air duct 3.3 is connected to the third lifting sleeve air duct 1.3, and the third lifting sleeve air duct 1.3 is provided with a short-side strip-shaped air supply port 2.4; purification device 6 The air inlet of the first air duct 3.1 is connected to the first air duct 3.1 through the canvas soft joint 5, and the air inlet of the first air duct 3.1 is connected to the first lifting sleeve air duct 1.1, and the long sides are respectively arranged on the first lifting sleeve air duct 1.1. Strip-shaped air return port 2.1; short-side strip-shaped air return port 2.2.

As shown in the top view of the device of the present invention shown in Figure 2, the ultraviolet germicidal lamp 11 provided in the purification device 6 is arranged in a ring shape, and a polished aluminum film 12 is pasted around the germicidal lamp inside the housing, which can reflect ultraviolet rays multiple times and effectively sterilize Sterilize.

As shown in Figure 3, the installation diagram of the device of the present invention, the purification device 6 is installed under the table top of the diagnosis table, and is connected to the bottom of the diagnosis table by angle steel and screw thread, and a rubber shock absorber is provided between the purification device 6 and the angle steel for vibration isolation. The lifting casing air duct with strip air outlet is fixed at both ends of the diagnosis table by bolts. Moreover, the device is located on the patient side of the consultation table, which is convenient for immediate treatment of bacteria and viruses produced by the patient, and effectively achieves the isolation effect.

When the device of the present invention is in use, the gas is sucked into the liftable casing air duct by the long-side strip-shaped air return port 2.1 and the short-side strip-shaped air return port 2.2 at the left end of the diagnosis table, and then enters through the connecting air pipe 3 below the diagnosis table. In the purification device 6, the particles enter the purification device 6 and pass through the coarse-effect filter screen 7 to filter the particles, then are sucked by the fan 8 and boosted, and then sent to the activated carbon filter screen 10 for primary adsorption. After the primary adsorption, the gas is sterilized under the irradiation of the ring-shaped ultraviolet sterilizer 11, and the polished aluminum film 12 arranged around it can reflect ultraviolet rays, so that the gas can be fully sterilized. After the sterilization is completed, the gas is adsorbed and filtered through the nano-titanium dioxide photocatalyst net 13 and the HEPA filter 14, and the deactivated bacteria or viruses are adsorbed and filtered to complete the purification of the gas. After the purified gas is silenced by the muffler 15, it is sent out through the two outlets of the purification device through the long-side strip-shaped air supply port 2.3 and the short-side strip-shaped air supply port 2.4 of the air duct on the right front side and left rear side of the consultation table, and the long-side strip-shaped air supply port 2.4. The gas sent out by the shape air supply port 2.3 and the short side strip air supply port 2.4 is inhaled by the long side strip air return port 2.1 and the short side strip air return port 2.2 of the lifting casing air duct on the left front side of the examination table, so as to continuously circulate , forming an "L"-shaped air curtain between patients and medical staff. The gas produced by the patient will be immediately sent to the purification device for continuous sterilization and disinfection due to the entrainment effect of the air curtain, so as to ensure the safety of the indoor medical staff.

As shown in Figure 4, the implementation effect diagram of the device of the present invention, in the process of diagnosis and treatment of patients with respiratory diseases, the isolation device forms an "L"-shaped air flow between the strip-shaped air ports at both ends of the diagnosis table. Curtain, wherein, the long-side strip-shaped air return port 2.1 and the long-side strip-shaped air supply port 2.3 form the long side of the "L"-shaped air curtain, and the short-side strip-shaped air return port 2.2 and the short-side strip-shaped air supply port 2.4 form an "L" shape The short side of the wind curtain. The flow rate of the air curtain can be adjusted by the speed of the fan to ensure that the air curtain can block the gas exhaled by the patient and prevent the poisonous and bacterial gas carried by the patient from infecting the medical staff.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications are also possible. It should be regarded as the protection scope of the present invention.

Claims (8)

1. An air curtain anti-cross-infection device for medical staff, characterized in that the device includes a strip-shaped tuyere, a pipeline and a purification device (6); the purification device (6) is sequentially provided with rough Efficient filter screen (7), fan (8), activated carbon filter screen (10), ultraviolet germicidal lamp (11), nano-titanium dioxide photocatalyst screen (13), HEPA filter screen (14) and muffler (15); purification device (6 ) is equipped with two air outlets, which are respectively connected to the second air duct (3.2) and the third air duct (3.3) through the first flexible hose (4.1) and the second flexible hose (4.2); the second air duct (3.2 ) is connected to the second lifting casing air duct (1.2), and a long side strip air supply port (2.3) is provided on the second lifting casing air duct (1.2); the air outlet of the third air duct (3.3) Connect the third lifting casing air duct (1.3), the third lifting casing air duct (1.3) is provided with a short side strip air supply port (2.4); the air inlet of the purification device (6) passes through the canvas soft joint (5 ) is connected to the first air duct (3.1), the air inlet of the first air duct (3.1) is connected to the first lifting sleeve air duct (1.1), and the long sides are respectively arranged on the first lifting sleeve air duct (1.1) Strip air return port (2.1); short-side strip air return port (2.2); The long-side strip-shaped air return port (2.1) and the long-side strip-shaped air supply port (2.3) are arranged oppositely, and the long-side strip-shaped air return port (2.1) and the long-side strip-shaped air supply port (2.3) form an "L"-shaped air curtain The long side of the long side; the short-side strip-shaped air return port (2.2) and the short-side strip-shaped air supply port (2.4) are arranged oppositely, and the short-side strip-shaped air return port (2.2) and the short-side strip-shaped air supply port (2.4) form an "L" shape The short side of the air curtain; the air curtain formed between the strip air outlets is "L" shaped. 2. An air curtain anti-cross-infection device for medical staff according to claim 1, characterized in that: the strip-shaped air outlets are two air supply outlets, namely long side strips, arranged on the air ducts at both ends of the device Shaped air supply port (2.3) and short-side strip-shaped air supply port (2.4), two air return ports are long-side strip-shaped air return port (2.1) and short-side strip-shaped air return port (2.2), and the height of the air port can be adjusted with the lifting sleeve The air duct adjusts itself. 3. An air curtain anti-cross-infection device for medical staff according to claim 1, characterized in that: the inlet and outlet of the purification device (6) are provided with flexible hoses, and the flexible hoses can be used according to the diagnosis. The length of the table needs to be freely raised. 4. An air curtain anti-cross-infection device for medical staff according to claim 1, characterized in that: the ultraviolet germicidal lamp (11) is a ring-shaped lamp tube, and a polished aluminum film (12) is arranged around it ), which can reflect the light emitted by the ultraviolet germicidal lamp multiple times. 5. An air curtain anti-cross-infection device for medical staff according to claim 4, characterized in that: the ultraviolet germicidal lamp (11) emits ultraviolet rays with a dominant wavelength of 254nm. 6. An air curtain anti-cross-infection device for medical staff according to claim 1, characterized in that: the fan (8) is a low-noise frequency conversion centrifugal fan, and the fan speed can be adjusted freely. 7. An air curtain anti-cross-infection device for medical staff according to claim 1, characterized in that: the coarse-effect filter (7) and the activated carbon filter (10) can be freely disassembled, washed and replaced. 8. An air curtain anti-cross-infection device for medical staff according to claim 1, characterized in that: the air ducts of the lifting casing, the connecting air ducts, and the flexible hoses are all circular air ducts.

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