CN112245153A

CN112245153A - Epidemic prevention ventilation sickbed

Info

Publication number: CN112245153A
Application number: CN202011253765.8A
Authority: CN
Inventors: 庄智; 陈子玮; 王以沫; 张思凝
Original assignee: Tongji University
Current assignee: Tongji University
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-01-22

Abstract

The invention relates to an epidemic prevention ventilation sickbed which comprises a sickbed main body, an air supply device arranged on the upper part of the sickbed main body and an exhaust device arranged on the lower part of the sickbed main body, wherein the sickbed main body comprises a horizontally arranged bed board (3), a plurality of peripheral baffles arranged on the side surface of the bed board (3) in a lifting manner, a support column (5) arranged on one side of the bed board (3) in an upward extending manner and a plurality of bed legs (7) arranged at the bottom of the bed board (3), the air supply device is connected with the support column (5) and is opposite to the bed board (3), and exhaust ports (4) connected with the exhaust device are arranged. Compared with the prior art, the invention can inhibit the diffusion of virus in a ward, simultaneously keep the comfort of a patient, ensure lower interactive infection probability, realize high-efficiency epidemic prevention and achieve better effect of preventing the diffusion infection than the prior ward.

Description

Epidemic prevention ventilation sickbed

Technical Field

The invention belongs to the field of sickbeds, and particularly relates to an epidemic prevention ventilated sickbed.

Background

The novel coronary pneumonia affecting the world is outbreaked in 2020, and by 10 months in 2020, thirty million people have been recorded in case of definite diagnosis, and the world health organization issues that the world or 10% of the population has been diagnosed with new coronary pneumonia, and hundreds of thousands of people have lost lives. Given the extreme susceptibility to infectious diseases transmitted as respiratory droplets, intimate contact and aerosols, isolation of patients and healthy populations is a frequently used therapeutic measure. However, since the number of patients is increasing dramatically and the number of patients in an infectious disease ward is increasing rapidly, it is a more reasonable approach to separate patients for treatment in units of hospital beds in order to avoid cross-infection, and it is urgent to rapidly discharge viruses that are transmitted by daily activities such as breathing, sneezing, and speaking when the patients are isolated from each other in the hospital beds.

Disclosure of Invention

The invention aims to provide an epidemic prevention ventilated sickbed, which can replace new wind and old wind in a reasonable mode to discharge viruses as soon as possible, inhibit the diffusion of the viruses in a sickroom, keep the comfort of a patient, ensure lower interactive infection probability, realize high-efficiency epidemic prevention and achieve better effect of preventing the diffusion infection than the existing sickroom.

The purpose of the invention is realized by the following technical scheme:

the utility model provides an epidemic prevention ventilation sick bed, the sick bed includes the sick bed main part, locates the air supply arrangement on sick bed main part upper portion and locates the exhaust apparatus of sick bed main part lower part, the sick bed main part includes the bed board that the level set up, locate the peripheral baffle of bed board side, upwards extend the support column of locating bed board one side and a plurality of footpost of locating the bed board bottom, air supply arrangement and support column are connected and just to the bed board, the bed board be equipped with the gas vent that is connected with exhaust apparatus all around. The mattress is placed on the bed board, a gap is separated between the mattress and the peripheral baffle, and the gap is provided with an air outlet.

A plurality of peripheral baffles include No. one baffle that sets up along bed board width direction and No. two baffles that set up in pairs along bed board length direction, No. one baffle and No. two baffles are perpendicular setting and in close contact with. The outer tail lamp baffles are not connected with each other and can respectively go up and down through the remote control plate, so that a patient can get on or off the bed conveniently.

The peripheral baffle still includes along bed board length direction sets up in pairs and is located the auxiliary baffle at No. two baffle tops, the vertical height of a baffle is greater than the vertical height of No. two baffles, the side surface and the baffle in close contact with of auxiliary baffle. The plurality of peripheral baffles are also constructed on the existing sickbed to realize manual lifting. Several peripheral baffles are solid, so as to ensure the relative sealing of the sickbed.

The bed board comprises a foldable head section and a tail section, and the sickbed further comprises a lifting device which is arranged at the bottom of the head section and used for lifting the head section. The lifting device adopts the structure on the existing sickbed to realize manual lifting. The bed board can meet different daily activity postures of a patient, and when the patient takes up and lies down, the bed head section can adjust the corresponding inclination angle.

The air supply device comprises a fresh air component for supplying fresh air, a horizontally arranged support plate and a plurality of nozzles movably distributed on the support plate, the end part of the support plate is connected with the support column, the nozzles are communicated with the fresh air component, and the air supply outlet of each nozzle is opposite to the bed plate. Although the sickbed is not integrally formed into a completely closed space by the supporting plate and the peripheral baffles, the fresh air can be continuously sent out from the nozzle to form a higher pressure area (which is larger than a low pressure area around the sickbed), so that the gas around the sickbed can not flow into the sickbed, the visual field is wider, and the patient is prevented from generating a closed feeling. The fresh air component can adopt a common fresh air ventilator on the market to realize gas treatment, and carries out multiple treatments such as filtration, sterilization, heating, oxygenation to the fresh air, and then sends into the nozzle, and the fresh air component comprises a fresh air pipe communicated with the nozzle, realizes sending the fresh air into the sickbed, and the best one bed of fresh air component is a machine, avoids appearing the series flow. Under the requirement of larger air flow, the fresh air component can also adopt a portable high-efficiency air filtering purifier, the jet flow of the purifier can lead the air to flow, normal air mixing is brought, and meanwhile, the concentration of particles in the fresh air is effectively reduced.

The temperature of the fresh air sent by the fresh air component is 18-26 ℃, the relative humidity is 40-48%, the speed is not more than 0.2m/s, and the speed is the flow speed of the fresh air reaching the position near the surface of a patient. The wind speed, the temperature and the humidity of the fresh air can be adjusted according to the comfort requirement of the patient. The ideal bed environment is set at 22 degrees celsius and a relative humidity of about 44%, and the air velocity near the patient surface does not exceed the recommended comfort limit of 0.2m/s, so that the contaminated air in the patient breathing zone is protected from diffusing outwards, and the sewage discharge efficiency is improved.

A plurality of through holes used for containing nozzles are vertically arranged on the supporting plate in a penetrating mode, and the bottoms of the nozzles protrude out of the through holes. The position of the part of the bottom of the nozzle, which extends out of the through hole, relative to the through hole and the part of the bottom of the nozzle, which is exposed out of the through hole, are adjusted, so that the position of the nozzle can be changed, and the flow direction of fresh air sprayed by the nozzle is adjusted.

A plurality of nozzles are distributed on the supporting plate in a fan shape, so that fresh air on the sickbed can be more uniform.

The supporting plate is fan-shaped, and the shape of the supporting plate is set according to the setting condition of the nozzles, so that the supporting plate is more attractive.

The exhaust device comprises a gas collecting hood, a gas guide pipe, an air extracting pump and an exhaust assembly, wherein the gas collecting hood is arranged at the bottom of the bed plate and communicated with an exhaust port, the gas guide pipe is communicated with the gas collecting hood and the air extracting pump, and the exhaust assembly is communicated with the air extracting pump. The exhaust assembly adopts the existing exhaust device, a sterilization device such as a UVGI device can be additionally arranged, collected gas polluted by a patient can be sterilized and then exhausted, the air is recycled, the bacteria concentration in the air can be obviously reduced, and the exhaust assembly comprises an exhaust pipe communicated with an air suction pump. The air exhaust pump can adjust the air exhaust amount according to requirements.

The bed board, the bed legs and the support columns are all made of aluminum alloy materials, so that the bearing capacity and the stability of the sickbed main body are guaranteed, the peripheral baffle and the support plates are made of ABS plastic materials, the weight of the sickbed is reduced, and the sickbed is prevented from being damaged due to accidental collision of a patient.

At present, researches on epidemic prevention wards at home and abroad show that a ventilation scheme of top air supply and side wall replacement type air exhaust is adopted as an optimal ventilation scheme, a local air exhaust grille is arranged near a patient, and the local air exhaust grille is preferably positioned near the head of the patient, so that a higher local air exhaust rate can be achieved. When the patient is in a standing posture and a sitting posture, the downward air supply speed of 0.25m/s can control the heat plume and particle emission generated by human body and respiration, when the patient is in a lying posture, the air supply speed can be reduced to 0.2m/s, the dilution multiple of the exhaled air of the patient reaches 10000 times, and the infection risk is relatively low.

The invention is designed by taking the existing common sickbed as a basic frame, wherein an air supply device conveys fresh air from outside cleaning, the fresh air and the air around the sickbed are separated between a plurality of peripheral baffles to form a positive pressure area, an exhaust device collects the air polluted by a patient and discharges the air through an air pump to form a negative pressure area, the negative pressure area is communicated with the positive pressure area through an exhaust port to form a gas flow direction channel, the polluted gas is discharged and then enters a uniform disinfection and sterilization system, the person in close contact with the patient is protected to the maximum extent, the fresh air is formed through the air supply device, the air flow direction is ensured through the exhaust device, the polluted gas is intensively discharged and treated, the new air and the old air are replaced in a reasonable mode to discharge viruses as soon as possible, the diffusion of the viruses in the sickroom is inhibited, the comfort of the patient is kept, and the lower interactive infection probability is ensured, realizes high-efficiency epidemic prevention and achieves better effect of preventing diffusion infection than the prior ward.

Drawings

FIG. 1 is a side view of the overall structure of an epidemic prevention ventilated hospital bed;

FIG. 2 is a top view of the overall structure of the epidemic prevention ventilated hospital bed;

FIG. 3 is a front view of the overall structure of the epidemic prevention ventilated hospital bed;

fig. 4 is a cross-sectional view taken along the line a-a in fig. 2.

In the figure: 1-a nozzle; 2-a support plate; 3-bed board; 301-head of bed section; 302-end of bed section; 4-an exhaust port; 5-a support column; 6-baffle plate I; 7-bed legs; 8-a gas-guide tube; 9-a gas-collecting hood; 10-second baffle; 11-an auxiliary baffle; 12-an air pump; 13-an exhaust pipe; 14-fresh air pipe.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments.

Examples

As shown in fig. 1, 2, 3, 4, an epidemic prevention ventilation sickbed comprises a sickbed body, an air supply device arranged on the upper portion of the sickbed body and an exhaust device arranged on the lower portion of the sickbed body, wherein the sickbed body comprises a horizontally arranged bed plate 3, a plurality of peripheral baffles arranged on the side of the bed plate 3 in a lifting manner, a support column 5 (the support column 5 can be arranged outside a first baffle 6 and is provided with a protruding block clamped on the top of the first baffle 6) and a plurality of bed legs 7 arranged at the bottom of the bed plate 3) extending upwards and arranged on one side of the bed plate 3, the bed plate 3 comprises a foldable head section 301 and a tail section 302 (as shown in fig. 4, the head section 301 is in an inclined state), the sickbed further comprises a lifting device (omitted in the drawing) arranged at the bottom of the head section 301 and used for lifting the head section 301, and the plurality of peripheral baffles comprise a first baffle 6 arranged along the width direction of the bed plate 3 and a second baffle 10 arranged in pairs along the The air port 4 omits a second baffle plate 10), the first baffle plate 6 is arranged at the head of the bed head section 301, the peripheral baffle plate can also comprise a third baffle plate arranged at the tail part of the bed tail section 302, the third baffle plate and the first baffle plate 6 are parallel and connected with the second baffle plate 10 so as to form a better closed environment, the first baffle plate 6 and the second baffle plate 10 are vertically arranged and tightly contacted, the peripheral baffle plate also comprises auxiliary baffle plates 11 (in a right triangle shape, the side length of the bottom is not less than the axial length of the bed head section 301, the total height of the second baffle plate 10 and the auxiliary baffle plates 11 is consistent with the height of the first baffle plate 6) which are arranged in pairs along the length direction of the bed plate 3 and are positioned at the top of the second baffle plate 10, the vertical height of the first baffle plate 6 is greater than the vertical height of the second baffle plate 10, the side surface of the auxiliary baffle plates 11 is tightly contacted with the first baffle plate 6, the air ports 4 connected with an exhaust device, and the bed plate 3 is arranged around a circle and is rectangular, so that the exhaust efficiency is increased.

The air supply device comprises a fresh air component for supplying fresh air, a horizontally arranged support plate 2 and a plurality of nozzles 1 movably distributed on the support plate 2, the end part of the support plate 2 is connected with a support column 5, the axial length of the support plate 2 is not less than that of a bedside section 301, so that the air around the head of a patient is fresh, the nozzles 1 are communicated with the fresh air component, an air supply outlet of each nozzle 1 is opposite to a bed plate 3, the fresh air component comprises a fresh air pipe 14 (only one fresh air pipe 14 is exemplarily shown in figure 1), the temperature of the fresh air sent by the fresh air component is 18-26 ℃, the relative humidity is 40-48%, the speed is not more than 0.2m/s, a plurality of through holes for accommodating the nozzles 1 are vertically arranged on the support plate 2 in a penetrating manner, the bottom of each nozzle 1 protrudes out of the through holes, the support plate 2 is fan-shaped, the nozzles 1 (in the embodiment, respectively arranged in an order of 1-2-3) are arranged in a fan shape on the supporting plate 2.

The exhaust device comprises a gas collecting hood 9, a gas guide pipe 8, an air extracting pump 12 and an exhaust assembly, wherein the gas collecting hood 9 is arranged at the bottom of the bed plate 3 and communicated with an exhaust port 4, the bed legs 7 are distributed on the outer side of the gas collecting hood 9, the gas guide pipe 8 is communicated with the gas collecting hood 9 and the air extracting pump 12, the bottom of the gas collecting hood 9 is sealed and only provided with an opening communicated with the gas guide pipe 8, the exhaust assembly is communicated with the air extracting pump 12, and the exhaust assembly comprises an exhaust pipe 13 communicated with the air extracting pump 12 (the air extracting pump 12 and the exhaust pipe 13 are only exemplarily shown in fig..

Bed board 3, footpost 7 and support column 5 all adopt the aluminum alloy material, and peripheral baffle and backup pad 2 all adopt the ABS plastics material, and gas collecting channel 9 adopts the ya keli material.

The using method of the invention is as follows: after a patient goes to bed, the air supply device (comprising the support plate 2 and the nozzle 1) at the upper part conveys the processed fresh air to the whole body of the patient by adjusting the angle of the nozzle 1 to form a positive pressure area, the patient can adjust the temperature, humidity and air speed according to the requirement and keep comfortable at the moment, the air suction pump 12 and the air duct 8 enable the air collecting hood 9 to form negative pressure, the polluted gas of the patient flows into the air collecting hood 9 positioned at the lower part of the bed plate 3 through the air exhaust ports 4 at the periphery of the edge of the bed plate 3, the collected polluted gas is exhausted by the exhaust pipe 13, and the collected polluted gas is further processed by filtering, sterilizing and purifying, so that a negative pressure area is formed all the time, and the operation is carried out, a complete positive-negative pressure air flow system is formed, and a circulating.

The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.

Claims

1. The utility model provides an epidemic prevention ventilation sick bed, a serial communication port, the sick bed includes the sick bed main part, locates the air supply arrangement on sick bed main part upper portion and locates the exhaust apparatus of sick bed main part lower part, the sick bed main part includes bed board (3) that the level set up, locate peripheral baffle of bed board (3) side a plurality of liftable, upwards extend and locate support column (5) of bed board (3) one side and a plurality of footpost (7) of locating bed board (3) bottom, air supply arrangement and support column (5) are connected and just to bed board (3), be equipped with gas vent (4) that are connected with exhaust apparatus around bed board (3).

2. An epidemic prevention ventilation sick bed according to claim 1, wherein the plurality of peripheral baffles comprise a first baffle (6) arranged along the width direction of the bed board (3) and a second baffle (10) arranged in pairs along the length direction of the bed board (3), and the first baffle (6) and the second baffle (10) are vertically arranged and closely contacted.

3. An epidemic prevention ventilation sick bed according to claim 2, wherein the peripheral baffle further comprises auxiliary baffles (11) which are arranged in pairs along the length direction of the bed board (3) and are positioned on the top of the baffle No. two (10), the vertical height of the baffle No. one (6) is greater than that of the baffle No. two (10), and the side surfaces of the auxiliary baffles (11) are in close contact with the baffle No. one (6).

4. An epidemic prevention ventilation sick bed according to claim 1, wherein the bed board (3) comprises a foldable head section (301) and a tail section (302), and the sick bed further comprises a lifting device arranged at the bottom of the head section (301) for lifting the head section (301).

5. The epidemic prevention ventilation sick bed according to claim 1, wherein the air supply device comprises a fresh air component for supplying fresh air, a horizontally arranged support plate (2) and a plurality of nozzles (1) movably distributed on the support plate (2), the end of the support plate (2) is connected with a support column (5), the nozzles (1) are communicated with the fresh air component, and the air supply outlet of the nozzles (1) is opposite to the bed plate (3).

6. The epidemic prevention ventilation sick bed according to claim 5, wherein the temperature of the fresh air sent by the fresh air component is 18-26 ℃, the relative humidity is 40-48%, and the speed is not more than 0.2 m/s.

7. An epidemic prevention ventilating sick bed according to claim 5, wherein the support plate (2) is vertically provided with a plurality of through holes for accommodating the nozzles (1), and the bottom of the nozzles (1) protrudes from the through holes.

8. An epidemic prevention ventilating sick bed according to claim 5, wherein the plurality of nozzles (1) are fan-shaped on the support plate (2).

9. The epidemic prevention ventilation sick bed according to claim 5, wherein the exhaust device comprises a gas collecting hood (9), a gas guide tube (8), an air pump (12) and an exhaust assembly, the gas collecting hood (9) is arranged at the bottom of the bed board (3) and is communicated with the exhaust port (4), the gas guide tube (8) is communicated with the gas collecting hood (9) and the air pump (12), and the exhaust assembly is communicated with the air pump (12).

10. The epidemic prevention ventilation sick bed according to claim 9, wherein the bed board (3), the bed legs (7) and the support columns (5) are made of aluminum alloy, the peripheral baffle and the support plate (2) are made of ABS plastic, and the gas collecting hood (9) is made of acrylic material.