CN112190344A

CN112190344A - Prevent new coronavirus splash negative pressure device

Info

Publication number: CN112190344A
Application number: CN202011015707.1A
Authority: CN
Inventors: 冯昌; 冯曼; 焦然; 冯敏; 刘东义; 丁宁; 王莹; 付佳; 刘戈; 魏峰涛; 董红; 姜曼; 赵鑫; 焦洋; 赵丽丽
Original assignee: Second Hospital of Shandong University
Current assignee: Second Hospital of Shandong University
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-01-08

Abstract

The invention relates to the technical field of medical protective equipment, in particular to a negative pressure device for preventing new coronavirus from splashing, which is characterized in that: the shell is a hollow rectangular box with the bottom surface removed, the back surface of the shell is used as a tail side surface, and a through hole is formed in the tail side surface and used as a negative pressure suction connecting hole; one end of the connecting pipe is connected with the negative pressure suction connecting hole, the other end of the connecting pipe is connected with the filter, the filter is connected with the negative pressure device, and the negative pressure device is connected with the killing device. The invention has the beneficial effects that: the protected object is transferred from the operator to the patient, and the infection risk is reduced by controlling the infection source and cutting off the transmission path, thereby protecting the medical staff. Aerosol formed by splashed secretion and gas with viruses exhaled by a patient are sucked away and inactivated in time, so that the virus diffusion probability is reduced, infection is reduced, the fear psychology and physical discomfort of medical staff can be relieved, the accuracy of the operations is accelerated, and the treatment effect of the patient is improved.

Description

Prevent new coronavirus splash negative pressure device

Technical Field

The invention relates to the technical field of medical protective equipment, in particular to a negative pressure device for preventing new coronavirus from splashing.

Background

When the new coronary pneumonia patient is in a critical state, measures such as timely sputum suction to keep the respiratory tract smooth, noninvasive ventilator positive pressure ventilation treatment, invasive ventilator treatment of trachea cannula, removal of trachea cannula after the patient's condition is improved, and trachea cannula general anesthesia are needed for the new coronary pneumonia infected patient to perform an operation.

It is known that these operations are one of the most intensive clinical operations in contact with the airway of a patient, and are likely to cause the spread of secretions, blood splashes, droplets, and aerosols, which may cause the infection of the operator, and the reduction of the protection efficiency due to factors such as mental stress, stuffiness, sweating, long time, and thin protection consciousness. Especially, a large number of emergency patients need surgical treatment to rescue lives, and are not in time to carry out nucleic acid detection, and the existing situation does not allow each patient to be treated by adopting standard three-stage protection, but operators of common protection have great risks facing latent patients. Therefore, how to protect the operation is a real problem for medical care personnel.

When a nurse sucks sputum for a patient, a choking reaction is easily generated, a large amount of aerosol containing viruses is sprayed out, sometimes sputum in the tracheal cannula is sprayed to the periphery in a radial mode along with the impact of cough airflow, and moreover, the face of an operator is about 50cm away from the face of the patient, so that the patient is easily infected. Doctors carry out positive pressure ventilation treatment on the patients with noninvasive ventilators, when the face mask is installed, the distance between the face mask and the patients is about 50cm, and exhaled gas containing viruses is easy to diffuse to cause infection. Particularly, when a doctor needs to close the patient in a close range, open the oral cavity, open the glottis and find an airway in the operation process of performing tracheal intubation on the patient, air containing high-concentration viruses can flap out, the operation of ventilating the patient can be completed as soon as possible, the patient sometimes suffers from difficult tracheal intubation, and the method is a great test for an anaesthetist. In normal times, the trachea cannula is generally operated for 3-5 minutes, but difficult trachea cannula is also a problem for an anaesthetist even in normal times, and a patient with new coronary pneumonia faces the situation. The longer the operation time, the more adverse the prognosis of the patient, and for the operator, the operation time is preferably not more than 90 seconds, otherwise the probability of infecting new coronary pneumonia is greatly increased, and the operator is greatly challenged in the aspects of technical and psychological bearing capacity by soaking the patient in the air full of high-concentration virus. And aerosol dissemination is currently suspected to be a possible way of causing transmission of new coronavirus. Researches find that the patient simulator can simulate cough in a horizontal position, and the distance of the sagittal plane of the patient simulator can reach about 86 cm. The distance of dissemination during positive pressure ventilation of the face mask can reach about 26.7cm, so the positive pressure ventilation period before tracheal intubation also has serious risks. When the trachea is intubated, doctors and patients are almost close to each other, and the infection risk is known.

Aiming at the situations, at present, medical staff mostly adopt the highest level of three-level protection to strengthen self protection, such as taking measures of wearing three-layer protective clothing or operating gowns, wearing three-level masks, wearing full-face masks and the like. This measure is said the leakproofness stronger in theory, can strengthen the safeguard action, has nevertheless reduced operation flexibility, wears to take off loaded down with trivial details, and the flow is complicated, appears occupational exposure easily, leads to infecting, especially wears for a long time, and the gas permeability is poor, and the sweat increases, and the goggles haze causes the field of vision fuzzy, and the operator breathes and hinders and arouses the oxygen deficiency, leads to dizziness, nausea, vomiting and oneself even have life danger, also seriously influences work efficiency simultaneously.

The temporary countermeasure when the trachea is intubated is to adopt a barrier film to isolate the head of a patient, namely, a transparent plastic hood is worn on the head of the patient, and holes are formed in the hood for positive pressure ventilation of a mask and trachea intubation. The measure has the advantages of low cost, certain prevention of dispersion of spray and aerosol, avoidance of pollution to medical instruments and the like. However, this temporary method also has the following disadvantages:

1. the adhesive plaster between the film and the consumable has poor adhesion reliability, and the adhesive plaster is easy to cause untight sealing and lose effect once falling off.

2. The patient is easy to have the situations of stuffiness, body surface temperature rise and the like under the closed state, and the patient is very dangerous for severe patients.

3. The hood makes the doctor can't stretch into to patient oral area in as the protective screen finger when carrying out trachea cannula, increases the intubate operation degree of difficulty, and extension operating time can lead to the patient to appear holding out the condition such as gas, increases patient's risk.

4. Although the hood is made of transparent plastic materials, the condition of reflecting light is generated under the irradiation of surgical lamplight, the insertion condition of the intubation tube is influenced for a doctor, the operation difficulty is greatly increased, and the risk of trachea intubation failure is increased.

Therefore, it is necessary to design a device for preventing a patient from splashing new coronavirus, which can transfer a protected object to the patient, and cut off a transmission path by controlling an infection source, thereby reducing the infection risk of medical staff.

Disclosure of Invention

The invention provides a negative pressure device for preventing new coronavirus from splashing, aiming at overcoming the defect that a patient with the new coronavirus is easy to spread the new coronavirus in a large area in the medical care process in the prior art.

The invention is realized by the following technical scheme:

the utility model provides a prevent new coronavirus splash negative pressure device, includes casing, connecting pipe, filter, negative pressure device and kills the device, its characterized in that:

the shell is a hollow rectangular box with the bottom surface removed, the back surface of the shell is used as a tail side surface, and a through hole is formed in the tail side surface and used as a negative pressure suction connecting hole;

one end of the connecting pipe is connected with the negative pressure suction connecting hole, the other end of the connecting pipe is connected with the filter, the filter is connected with the negative pressure device, and the negative pressure device is connected with the killing device.

Further, in order to better implement the invention, the material of the shell is transparent plastic, and the length, width and height of the shell are 50cm by 60cm by 70 cm.

Furthermore, in order to better realize the invention, an inner plate is fixedly connected in the shell, the inner plate is a rectangular partition plate, a plurality of through holes are formed in the inner plate to serve as ventilation holes, and the inner plate and the tail side face form a negative pressure suction layer.

Further, in order to better realize the invention, the center positions of the bottoms of the inner plate and the tail side surface are provided with circular arc-shaped gaps as grooves, and the edges of the grooves are provided with sealing rubber.

Further, in order to better implement the invention, the bottom edge of the shell is completely bonded with sealing rubber.

Furthermore, in order to better realize the invention, the top surface of the shell is made of acrylic material; the front surface of the shell is used as a head side surface, two parallel through holes are formed in the head side surface, the through hole on the left side is a left-hand operation hole, and the through hole on the right side is a right-hand operation hole.

Furthermore, in order to better realize the invention, the left side of the shell is a left side surface, and the left side surface is provided with a sputum suction pipe hole which is inserted into an external sputum suction pipe; the right side of casing is the right flank, and it has the breathing pipeline hole to open on the right flank, and outside breathing pipeline is pegged graft to the breathing pipeline hole.

Further, in order to better realize the invention, the connecting pipe is a disposable suction connecting pipe; the filter element of the filter is made of composite material for blocking new coronavirus; the negative pressure device is a device which is provided with a negative pressure meter and a storage battery and can generate negative pressure; the sterilizing device is a sterilizing bottle which is internally filled with sterilizing liquid for effectively killing new coronavirus, the end part of a connecting pipe inserted into the sterilizing bottle is immersed below the sterilizing liquid level, and the sterilizing bottle is also provided with an exhaust hole. Therefore, by means of the double-safety structure of the filtering device and the killing device, the new coronavirus can be effectively killed, and the exhausted gas can be safely released into the air.

The invention has the beneficial effects that:

the negative pressure device for preventing the new coronavirus from splashing disclosed by the invention has the advantages of low cost, light weight, simple structure, strong practicability, high safety, mobility and the like, and is used for preventing the virus-containing exhaled gas, sputum, secretion, blood and the like from splashing to form aerosol to cause virus diffusion to infect medical staff when operations such as sputum suction, noninvasive positive pressure ventilation, tracheal intubation, tracheal extubation and the like are performed on a patient infected by the new coronavirus.

The invention develops a new method, transfers the protected object from an operator to a patient, cuts off the transmission path by controlling the infection source, and reduces the infection risk, thereby protecting the medical staff. The design is a relatively closed transparent shell, a negative pressure device is connected to one side of the shell, aerosol formed by splashed secretion and gas with viruses exhaled by a patient are sucked away and inactivated in time, the virus diffusion probability is reduced, infection is reduced, the fear psychology and physical discomfort of medical staff can be relieved, and the accuracy of the operations is accelerated, so that the treatment effect of the patient is improved.

Drawings

FIG. 1 is a front perspective view of a housing portion of the anti-new coronavirus splash vacuum apparatus of the present invention;

FIG. 2 is a schematic view of a rear perspective view of a housing portion of the anti-coronavirus splash vacuum apparatus of the present invention;

FIG. 3 is a schematic view of the bottom perspective structure of the housing portion of the anti-coronavirus splash vacuum apparatus of the present invention;

FIG. 4 is a block diagram of the general structure of the anti-new coronavirus splash negative pressure device of the invention.

In the figure, the position of the upper end of the main shaft,

1. a shell, 101, a top surface, 102, a head side surface, 1021, a left hand operation hole, 1022, a right hand operation hole, 103, a left side surface, 1031, a sputum aspirator hole, 104, a right side surface, 1041, a respiratory tract hole, 105, a tail side surface, 1051, a negative pressure suction connecting hole, 106, an inner plate, 1061, a vent hole, 107 and a groove,

2. connecting pipe, 3, filter, 4, negative pressure device, 5, kill device.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally laid out when products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be noted that the terms "disposed," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. They may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Fig. 1 to 4 show an embodiment of the present invention, which is a negative pressure device for preventing new coronavirus from splashing, and is used for performing operations such as sputum aspiration, positive pressure ventilation treatment, tracheal intubation and tracheal extraction on a patient with new coronary pneumonia, so as to effectively cut off the transmission path of respiratory pathogens, ensure the safety of medical staff to the greatest extent, and effectively improve the treatment effect of the patient.

The device comprises a shell 1, a connecting pipe 2, a filter 3, a negative pressure device 4 and a killing device 5, wherein the shell 1 is a hollow rectangular box with the bottom surface removed, the back surface of the shell 1 is used as a tail side surface 105, and a through hole is arranged on the tail side surface 105 and used as a negative pressure suction connecting hole 1051; one end of the connecting pipe 2 is connected with the negative pressure suction connecting hole 1051, the other end is connected with the filter 3, the filter 3 is connected with the negative pressure device 4, and the negative pressure device 4 is connected with the killing device 5.

The shell 1 is a hollow cuboid transparent plastic box with unsealed bottom surface, the size is 50cm x 60cm x 70cm, the head side surface 102 is provided with a left hand operation hole 1021 and a right hand operation hole 1022, the tail side surface 105 is a negative pressure suction layer, the inner plate 106 is provided with a plurality of micropores, the tail side surface 105 is provided with a connecting port, the lower end is provided with a groove which is sealed on the neck of a patient, and the side walls of the left side and the right side which are opposite are respectively provided with a breathing pipeline hole 1041 and a sputum suction pipe hole 1031; the filter 3 is an accessory capable of effectively blocking new coronavirus; the connecting pipe 2 is a disposable suction connecting pipe; the negative pressure device 4 is an electric device capable of generating negative pressure and is provided with a negative pressure meter and a storage battery; the new coronavirus killing device 5 comprises a disinfection bottle, wherein disinfection liquid for effectively killing new coronavirus is contained in the disinfection bottle, an air pipe connected with the negative pressure device 4 is inserted into the disinfection bottle, the tail end of the air pipe is submerged below the liquid level of the disinfection liquid, and the disinfection bottle is also provided with an air outlet so that air discharged by the negative pressure device 4 is discharged out of the disinfection bottle after passing through the disinfection liquid. Therefore, by means of the double-safety structure of the filtering device and the killing device, the new coronavirus can be effectively killed, and the exhausted gas can be safely released into the air.

In addition, besides installing the sealing rubber, the bottom surface of the housing 1 of the present embodiment may also be provided with a magic tape, which is matched with the disposable non-woven fabric laid under the head of the patient to form a sealed environment; moreover, the top surface 101 in this embodiment may also be provided with a through hole for inserting the disinfection nozzle after the operation is completed, and performing atomization disinfection treatment on the inside of the housing 1, wherein the disinfection solution needs to be a disinfection solution that does not damage the head and face of the patient.

This embodiment can form the negative pressure environment in the shell through negative pressure generating device, will implement trachea cannula, the trachea is drawn out and is inhaled aerosol that contains new corona virus that produces when operations such as phlegm in time and attract, carry out the primary filter through the filter earlier, then behind the negative pressure device, the setting of rethread new corona virus killing part then can carry out pathogen second grade with the air current that the exhaust has the infection risk and disappear, can effectively cut off new corona virus propagation way, furthest ensures medical staff's safety, can let medical staff reduce psychological pressure simultaneously, the at utmost rescue the patient, promote patient's recovery early.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a prevent new coronavirus splash negative pressure device, includes casing (1), connecting pipe (2), filter (3), negative pressure device (4) and kill device (5), its characterized in that:

the shell (1) is a hollow rectangular box with a bottom surface removed, the back surface of the shell (1) is used as a tail side surface (105), and a through hole is formed in the tail side surface (105) and used as a negative pressure suction connecting hole (1051);

one end of the connecting pipe (2) is connected with the negative pressure suction connecting hole (1051), the other end of the connecting pipe is connected with the filter (3), the filter (3) is connected with the negative pressure device (4), and the negative pressure device (4) is connected with the killing device (5).

2. The negative pressure device for preventing new coronavirus from splashing according to claim 1, wherein:

the material of casing (1) is transparent plastics, and the length, width, height size of casing (1) is 50cm 60cm 70 cm.

3. The negative pressure device for preventing new coronavirus from splashing according to claim 1, wherein:

an inner plate (106) is fixedly connected in the shell (1), the inner plate (106) is a rectangular partition plate, a plurality of through holes are formed in the inner plate (106) to serve as vent holes (1061), and the inner plate (106) and the tail side surface (105) form a negative pressure suction layer.

4. The device of claim 3 for preventing new coronavirus from splashing and generating negative pressure, wherein:

the bottom center positions of the inner plate (106) and the tail side surface (105) are provided with circular arc-shaped gaps as grooves (107), and the edges of the grooves (107) are provided with sealing rubber.

5. The negative pressure device for preventing new coronavirus from splashing according to claim 1, wherein:

and sealing rubber is bonded to the bottom edge of the shell (1).

6. The negative pressure device for preventing new coronavirus from splashing according to claim 1, wherein:

the top surface (101) of the shell (1) is made of acrylic materials; the front surface of the shell (1) is used as a head side surface (102), two parallel through holes are formed in the head side surface (102), the left through hole is a left-hand operation hole (1021), and the right through hole is a right-hand operation hole (1022).

7. The negative pressure device for preventing new coronavirus from splashing according to claim 1, wherein:

the left side of the shell (1) is a left side surface (103), a sputum suction pipe hole (1031) is formed in the left side surface (103), and the sputum suction pipe hole (1031) is inserted into an external sputum suction pipe; the right side of casing (1) is right flank (104), and it has breathing pipeline hole (1041) to open on right flank (104), and outside breathing pipeline is pegged graft in breathing pipeline hole (1041).

8. The negative pressure device for preventing new coronavirus from splashing according to claim 1, wherein:

the connecting pipe (2) is a disposable suction connecting pipe; the filter element of the filter (3) is made of composite material for blocking new coronavirus; the negative pressure device (4) is equipment which is provided with a negative pressure meter and a storage battery and can generate negative pressure; the killing device (5) is a disinfection bottle which is internally filled with disinfectant for effectively killing new coronavirus, the end part of a connecting pipe inserted into the disinfection bottle is immersed below the disinfection liquid level, and the disinfection bottle is also provided with an exhaust hole.