CN113633490A

CN113633490A - Convection transfer system

Info

Publication number: CN113633490A
Application number: CN202010346035.6A
Authority: CN
Inventors: 常利军; 陈辉; 于海玲; 李坚韧
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2021-11-12

Abstract

The invention discloses a convection transfer system, which comprises a convection head cover, wherein the convection head cover comprises a bottom cover and a buckle cover which are hinged together; the gas collecting device is arranged at the bottom of the transfer stretcher and is connected with the bottom cover through a gas guide tube. The invention reduces the danger and pain of negative pressure transportation patients, adopts the convection hood to relatively close the part above the neck of the patient, but the whole body is closed, fresh air enters the convection hood through the gap between the convection hood and the patient and the air inlet, the gas collection device mixes the gas exhaled by the patient with the fresh air and then collects the mixed gas, and bacteria and virus are collected in a designated sealed container; not only ensures that the isolated patient has no psychological barrier, but also protects normal working personnel from being influenced.

Description

Convection transfer system

Technical Field

The invention relates to the technical field of infectious disease treatment and transfer, in particular to a convection transfer system.

Background

Respiratory infectious diseases are caused by infection of healthy people who inhale or contact with pathogenic pathogens around the people caused by air transmission of the pathogenic pathogens, so that the spread and epidemic of the infectious diseases are caused, and serious health and social problems are caused; at present, people develop positive pressure biological protective clothing and positive pressure biological protective head covers for protecting treatment personnel, medical personnel and research personnel contacting with the severe infectious disease patients, but how to prevent the severe infectious disease infected personnel from releasing severe pathogens into the environment is very important for the safe transfer of the infectious disease patients.

Patent ZL201110082388.0 discloses a negative pressure isolated inflatable stretcher for infectious patients, which describes a closed cabin body composed of an arched air bag type cabin cover and an air bag type cabin bottom through a waterproof zipper, and integrates the functions of negative pressure, ventilation and the like on the function of the stretcher, and medical care personnel can hardly perform the treatment and prevention and control of sudden conditions because the body is in a closed space in the treatment and transportation process;

in addition, a negative pressure ambulance is commonly used in the transfer process, and is provided with a negative pressure purification system and an air inlet and an air outlet, so that a relative negative pressure state is formed in an ambulance cabin, and air in the ambulance cabin forms relatively stable air flow and cannot be randomly diffused outwards, so that cross contamination sources of doctors and patients in the transfer process are reduced, but the air in the ambulance cabin uniformly passes through an air outlet and is discharged out of the ambulance after efficient sterilization and purification; the space in the rescue cabin of the negative pressure ambulance generally reaches 6-8m3, the space is large, so that the relative air pressure can only reach about-30 pa, the relative efficiency is low, and through a large amount of smoke tests, when the relative negative pressure in the rescue cabin is about-30 pa, the periphery of an air outlet of the negative pressure purification system is difficult to form relatively stable air flow; it is difficult to ensure that the air exhaled from the patient's mouth is completely and timely pumped into the exhaust outlet of the negative pressure purification system. Particularly in the case of sneezing or head swing of the patient, the air in the rescue capsule is easily contaminated, which may cause cross-contamination of the hospital and patient personnel, and the personnel in the rescue capsule move, which makes the air flow in the capsule more unstable and increases the possibility of infection.

Disclosure of Invention

The present invention provides a convective transport system that addresses at least to some extent one of the above-identified technical problems of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a convective transport system comprising:

the convection head cover comprises a bottom cover and a buckle cover which are hinged together;

the gas collecting device is installed at the bottom of the transfer stretcher and connected with the bottom cover through a gas guide tube.

According to the scheme, compared with the prior art, the negative pressure convection hood reduces the danger and pain of a patient in negative pressure transportation, the whole body is closed only by relatively closing the part above the neck of the patient, fresh air enters the convection hood through the gap between the convection hood and the patient and the air inlet, the gas exhaled by the patient is mixed with the fresh air by the gas collecting device and then collected, and bacteria and viruses are collected in the designated sealed container; not only ensures that the isolated patient has no psychological barrier, but also protects normal working personnel from being influenced.

Furthermore, the buckle cover and the bottom cover are connected together through a rotating shaft, and an air bag type slow pressing pad is arranged at the joint of the buckle cover and the bottom cover; the end cover is connected with the air duct that is used for retrieving patient exhaust gas, the top of detaining the cover is equipped with a plurality of interfaces that are used for connecting rescue equipment and a plurality of one-way admission valve that help the interior air flow of hood, one-way admission valve's air inlet department has the one-way film that admits air of can opening automatically.

The adoption of the proposal has the advantages that the shape of the air bag can be automatically adjusted, the patient is relatively sealed in the convection head cover, when the convection air pressure generated by air in the head cover is unbalanced, the film of the one-way air inlet valve can be automatically opened for air inlet,

further, detain the cover both sides and be equipped with two operations and the air inlet that are used for nursing patient's head respectively, operation and air inlet with detain the cover and pass through the ring flange and connect fixedly, operation and air inlet have two-layer protection emulsion membrane, the center department of first layer protection emulsion membrane is equipped with the cross opening that the arm of being convenient for got into, the center of second layer protection emulsion membrane has the latex protection sleeve that is used for the arm to cover tight arm deeply after the arm.

The adoption of the scheme has the beneficial effects that the cross-shaped opening of the first layer of protective latex film is convenient for air intake, medical personnel can enter the arm through the cross-shaped opening during operation, the cross-shaped opening and the arm form a sealed state, and the cross-shaped opening automatically recovers after withdrawing the arm to keep the air intake form; the latex protective sleeve is designed to be a round sleeve smaller than a basic wrist, the purposes of flexible sealing operation and protection are achieved, and when the latex protective sleeve is not used, the latex protective sleeve can droop due to weight, so that a one-way air inlet effect is achieved.

Further, the gas collecting device comprises a first gas inlet cylinder, a second gas inlet cylinder and a gas collecting cylinder, wherein the second gas inlet cylinder is arranged in parallel with the first gas inlet cylinder, the tail ends of the second gas inlet cylinder and the first gas inlet cylinder are communicated with each other, gas inlets at the head ends of the first gas inlet cylinder and the second gas inlet cylinder are simultaneously communicated with an outlet of the gas guide pipe, one-way valves are arranged at gas inlets at the head ends of the first gas inlet cylinder and the second gas inlet cylinder, and a reciprocating type gas suction compression device is arranged in the second gas inlet cylinder;

the gas collecting bottle is communicated with the second air inlet cylinder through a first gas guide pipe, and a one-way air inlet valve is arranged at the communication position of the first gas guide pipe and the second air inlet cylinder;

the first air inlet cylinder is communicated with the first air guide pipe through a second air guide pipe, and the one-way air inlet valve is arranged at the communication position of the second air guide pipe and the first air inlet cylinder.

The beneficial effects of adopting above-mentioned scheme are that, can concentrate the recovery to the gas of patient's exhalation in the hood, can not the polluted environment, adopt reciprocating type compressor arrangement that breathes in to realize two cylinders and reciprocate to inhale, compressed gas to in carrying the air bottle through the pipeline, adopt the double-cylinder design to collect gas and make gas recovery go on in succession.

Further, the reciprocating suction compressor device comprises:

a piston disposed within the second intake cylinder;

the electric push rod comprises a motor and a push rod, the motor is installed outside the tail end of the second air inlet cylinder, the push rod is horizontally arranged in the second air inlet cylinder, one end of the push rod is fixedly connected with the piston, and the other end of the push rod penetrates through the inner wall of the second air inlet cylinder and is connected with the motor in a driving mode.

The beneficial effect of adopting above-mentioned scheme is that, drive piston reciprocating motion in the second air inlet cylinder through the electric push rod, change the pressure in two air inlet cylinders, realize breathing in of first air inlet cylinder, the compression of second air inlet cylinder, or breathing in of second air inlet cylinder, the compression of first air inlet cylinder, the design of two air inlet cylinders is collected gaseously, realizes going on in succession that gas recovery goes on.

Furthermore, a sealing ring is arranged at the communication position of the push rod and the inner wall of the second air inlet cylinder.

Adopt above-mentioned scheme's beneficial effect to be, guarantee catch bar and second air inlet cylinder intercommunication department leakproofness, prevent gas leakage.

Furthermore, a pressure gauge and a valve for detecting air pressure are arranged at the bottle mouth of the gas collecting bottle.

The beneficial effects of adopting above-mentioned scheme are that, be convenient for survey the atmospheric pressure in the gas collecting bottle, in time stop gaseous collection and prevent the backward flow to can in time change the gas collecting bottle that collects full gas.

According to the technical scheme, the beneficial effects of the invention are as follows:

1. the convection head cover of the invention only seals the whole body by relatively sealing the part above the neck of the patient, does not influence various rescue measures carried out on the patient, also protects the safety of normal workers, relieves the psychological pressure of the patient, and makes the patient feel fear because of the whole body sealing and the transparent coffin.

2. The gas exhaled by the patient is mixed with fresh air and then collected by a gas collecting system, bacteria and viruses are collected into the sealed gas collecting bottle through a pipeline, and the harm and pain of negative pressure to the body during the transportation of the patient are relieved.

3. The invention blocks the air which is harmful to the health of the body and has the air transmission of virus, bacteria and the like, seals the transmission path, protects the normal human body from being infected, solves the adverse factors which influence the treatment in the way when the respiratory tract infectious patient is transported, and the like, when the patient has an accident caused by the respiratory tract disease, other parts of the patient except the head are exposed in the range of rescue equipment, and the rescue measures of defibrillation, electrocardiogram, transfusion and the like are carried out on the patient timely and accurately without causing the injury to medical care personnel.

4. The operation of hood and the structural design of air inlet make things convenient for medical personnel to nurse patient's head to can reach airtight flexible operation and protection purpose, and can not influence one-way air inlet.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram provided by the present invention.

FIG. 2 is a schematic view of the hood of the present invention in an open position.

FIG. 3 is a schematic view of the convection head cover structure of the present invention.

FIG. 4 is a schematic structural diagram of a second protective latex film according to the present invention.

Fig. 5 is a flow chart of the second intake cylinder compressing the collected gas according to the present invention.

Fig. 6 is a flow chart of the first intake cylinder compressing the collected gas according to the present invention.

Wherein:

1-bottom cover; 2-buckling a cover; 3-air bag type pressure-relieving cushion; 4-gas-guide tube; 5-interface; 6-one-way air inlet valve; 7-operation and air inlet; 8-a second layer of protective latex film; 9-a first inlet cylinder; 10-a second inlet cylinder; 11-a gas collecting bottle; 12-a one-way valve; 13-a first airway tube; 14-a second airway tube; 15-a piston; 16-an electric machine; 17-pushing rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the invention discloses a convection transfer system, which is applied to a transfer medical vehicle for conveying and transferring medical observers, suspected patients and confirmed patients in the prevention, control and treatment process of epidemic diseases, and is also provided with a plurality of first-aid devices 100 and transfer stretchers 200, and comprises: the convection head cover comprises a bottom cover 1 and a buckle cover 2 which are hinged together; the bottom cover 1 is fixed on the transfer stretcher; the gas collecting device 300 is installed at the bottom of the transfer stretcher 200 and connected with the bottom cover 1 through a gas guide 4.

The buckle cover 2 is connected with the bottom cover 1 through a rotating shaft, and an air bag type slow pressing pad 3 is arranged at the joint of the buckle cover 2 and the bottom cover 1, so that a relatively closed space is created, convection air is generated, and the comfort and the directivity of convection of a patient are ensured; the bottom cover 1 is connected with an air duct 4 for recovering the gas discharged by the patient, the top of the buckle cover 2 is provided with a plurality of interfaces 5 for connecting rescue equipment and a plurality of one-way air inlet valves 6 which are helpful for the air flow in the head cover, and the air inlet of the one-way air inlet valve 6 is provided with a film which can automatically open and admit air in one way.

The transfer medical vehicle is provided with first-aid equipment such as a respirator, a defibrillator, an aspirator and the like, an inlet of a pipeline of the respirator and the aspirator is reserved for rescuing patients with infectious diseases, a part of pipeline can be placed inside the convection head cover through a connector 5 by the pipeline of the respirator, the aspiration material can be connected inside and outside, the cross infection between the outside and the inside is reduced to the minimum, and the material used by the patients is sealed in the head cover;

two operation and air inlet ports 7 for nursing the head of a patient are respectively arranged on two sides of the buckle cover 2, the operation and air inlet ports 7 are fixedly connected with the buckle cover 2 through a flange plate, the operation and air inlet ports 7 are provided with two layers of protective emulsion films, a cross-shaped opening convenient for an arm to enter is arranged in the center of the first layer of protective emulsion film, and a latex protective sleeve for tightly sleeving the arm after the arm is deeply inserted is arranged in the center of the second layer of protective emulsion film 8; when the medical staff operates, the arm enters through the cross opening, the cross opening and the arm form a sealing state, and the air inlet form is automatically recovered after the arm is withdrawn, so that the air inlet form is maintained; the latex protective sleeve is designed to be a round sleeve smaller than a basic wrist, the purposes of flexible sealing operation and protection are achieved, and when the latex protective sleeve is not used, the latex protective sleeve can droop due to weight, so that a one-way air inlet effect is achieved.

The gas collecting device comprises a first gas inlet cylinder 9, a second gas inlet cylinder 10 and a gas collecting cylinder 11, wherein the second gas inlet cylinder 10 and the first gas inlet cylinder 9 are arranged in parallel, the tail ends of the second gas inlet cylinder 10 and the first gas inlet cylinder 9 are communicated with each other, the gas inlets at the head ends of the first gas inlet cylinder 9 and the second gas inlet cylinder 10 are simultaneously communicated with the outlet of the gas guide pipe 4, one-way valves 12 are arranged at the gas inlets at the head ends of the first gas inlet cylinder 9 and the second gas inlet cylinder 10, and a reciprocating type gas suction compression device is arranged in the second gas inlet cylinder; the gas collecting bottle 11 is communicated with the second gas inlet cylinder 10 through a first gas guide pipe 13, and a one-way gas inlet valve 6 is arranged at the communication position of the first gas guide pipe 13 and the second gas inlet cylinder 10; the first air inlet cylinder 9 is communicated with the first air duct 13 through a second air duct 14, and a one-way air inlet valve 6 is arranged at the communication position of the second air duct 14 and the first air inlet cylinder 9.

The reciprocating type suction compressor device comprises a piston 15 and an electric push rod, wherein the piston 15 is arranged in the second air inlet cylinder 10; the electric push rod comprises a motor 16 and a push rod 17, the motor 16 is installed outside the tail end of the second air inlet cylinder 10, the push rod 17 is horizontally arranged in the second air inlet cylinder 10, one end of the push rod is fixedly connected with the piston 15, the other end of the push rod penetrates through the inner wall of the second air inlet cylinder 10 and is in driving connection with the motor 16, the push force is designed to be 100Kg-200Kg, and the communicated part of the push rod 17 and the second air inlet cylinder 10 is sealed through a sealing ring to prevent gas leakage.

The bottleneck department of gas collection bottle 11 is equipped with the manometer and the valve that are used for detecting atmospheric pressure, and the gas collection bottle is 30MP carbon fiber gas cylinders, can real-time supervision gas pressure in the gas collection bottle to conveniently control gaseous collection and open and stop, prevent to collect the interior adverse current of back flow from the gas collection bottle after full.

The working principle is as follows: when the push rod drives the piston to move towards the one-way valve in the second air inlet cylinder, the compression pressure of gas in the second air inlet cylinder is increased, the pressure in the first air inlet cylinder is smaller than that of the second air inlet cylinder, the one-way valve in the first air inlet cylinder is opened, the gas flows into the second air inlet cylinder under the action of the pressure difference, the one-way air inlet valve of the second air guide pipe cannot be opened under the action of suction force, the one-way air inlet valve of the first air guide pipe is pushed open by the gas compressed by the piston, and the gas enters the gas collecting bottle through the first air guide pipe;

when the catch bar drives the piston and removes to the tail end in the second air inlet cylinder, the gaseous compression pressure increase in the first air inlet cylinder, the interior gas pressure of second air inlet cylinder is less than first air inlet cylinder, the check valve in the second air inlet cylinder is opened, gaseous inflow is in first air inlet cylinder under the effect of pressure in, and the one-way admission valve of first air duct also can not be opened under the effect of suction, the one-way admission valve of second air duct is backed down to the gas that gets into through piston compression, gas enters into in the gas collecting bottle through the second air duct.

The gas collecting device can be used repeatedly for disinfection, after the gas collecting bottle collects gas, the temperature can rise to about 70 ℃ under high pressure, the survival rate of bacteria and viruses is effectively reduced, the collected gas can be subjected to harmless treatment, and the harm to human bodies and the environment is reduced; the piston can be designed to be large-caliber, the air flow is increased, the air resistance is reduced, the air inlet is smooth, the double-cylinder design collects air, the air recovery is continuously carried out, the push rod is adjusted to be slow in reciprocating, and the noise is reduced.

The system can be used independently and can also be matched with other harmless gas treatment systems for use together, thereby achieving the purposes of safety, small size and reasonability;

the convection transfer system of the invention reduces the larger ventilation space of the medical cabin to the smaller relatively closed ventilation space contained by the hood, greatly improves the ventilation efficiency and is not influenced by the surrounding environment

The problem that part of emergency equipment cannot be used when a patient is rescued is solved, the convection device reduces the pain and the occurrence of complications brought to the patient by negative pressure, and the transfusion condition of the patient is well guaranteed (under the negative pressure state, the blood pressure of a human body is higher than the environmental pressure, and the transfusion is stranded and has bleeding danger), the convection cover is convenient to use, and the cost is low; can regard as disposable (the material can be food level polypropylene), but the gas collecting device disinfection is used repeatedly, the gas collecting bottle collects behind the gas, the temperature can rise to 70 degrees when the high pressure, effectively reduce bacterium and virus survival rate, reduce to the person, the harm that the environment caused, this convection current transfer system is effectively alleviating patient's fear, when painful, for medical staff provides abundant rescue space, be convenient for handle emergency, because convection current transfer system adopts the convection current air, fresh air is in the entry forever, the mist is located the export forever, and concentrate by the export and collect, can not make the injury to medical staff.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A convective transport system comprising:

2. The convection current transfer system of claim 1, wherein the buckle cover and the bottom cover are connected together through a rotating shaft, and an air bag type pressure relief cushion is arranged at the joint of the buckle cover and the bottom cover; the end cover is connected with the air duct that is used for retrieving patient exhaust gas, the top of detaining the cover is equipped with a plurality of interfaces that are used for connecting rescue equipment and a plurality of one-way admission valve that help the interior air flow of hood, one-way admission valve's air inlet department has the one-way film that admits air of can opening automatically.

3. The convective transfer system of claim 2, wherein two operation and air inlets for nursing the head of the patient are respectively disposed at two sides of the buckle cover, the operation and air inlets are fixedly connected to the buckle cover through a flange, the operation and air inlets have two layers of protective latex films, a cross opening for the arm to enter is disposed at the center of the first layer of protective latex film, and a latex protective sleeve for tightly sleeving the arm after the arm is inserted into the center of the second layer of protective latex film.

4. The convection transfer system of claim 2, wherein the gas collecting device comprises a first air cylinder, a second air cylinder and a gas collecting cylinder, the second air cylinder is juxtaposed with the first air cylinder and has a tail end communicated with each other, the head end air inlets of the first air cylinder and the second air cylinder are simultaneously communicated with the outlet of the gas guide tube, the head end air inlets of the first air cylinder and the second air cylinder are respectively provided with a one-way valve, and the second air cylinder is internally provided with a reciprocating type suction compressor;

the gas collecting bottle is communicated with the second air inlet cylinder through a first gas guide pipe, and the one-way air inlet valve is arranged at the communication position of the first gas guide pipe and the second air inlet cylinder;

5. The convective transport system of claim 4, wherein the reciprocating suction compressor device comprises:

a piston disposed within the second intake cylinder;

6. The convective transfer system of claim 5, wherein the connection between the push rod and the inner wall of the second inlet cylinder is provided with a sealing ring.

7. The convective transfer system of claim 4, wherein the mouth of the gas collection bottle is provided with a pressure gauge and a valve for detecting air pressure.