CN213084267U

CN213084267U - Ventilative type biological safety sterilization disposal bag

Info

Publication number: CN213084267U
Application number: CN202120042121.8U
Authority: CN
Inventors: 刘思聪; 刘思宇; 韦茜龄
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-04-30
Anticipated expiration: 2031-01-08

Abstract

The utility model discloses a ventilating type biological safety sterilization garbage bag, which comprises a garbage bag body and a ventilating filtering membrane, wherein the ventilating filtering membrane is directly connected on the garbage bag or is arranged through a grid frame on the garbage bag; the air-permeable filtering membrane consists of non-woven fabric and dense melt-blown fabric. The utility model discloses an innovation point has set up ventilative filtration membrane on the disposal bag, realizes under the pathogen condition of not leaking, possesses following function: after the opening of the garbage bag is bound, the garbage bag can be safely squeezed to exhaust, the volume of the garbage bag is reduced, and the garbage bag is convenient to store, transport and sterilize by high-pressure steam; when a common high-pressure sterilization pot is used, high-temperature steam can smoothly enter the bundled garbage bag, so that a better sterilization effect is achieved; when the vacuum pulsation high-pressure sterilization device is used, the bag does not need to be opened before being placed in the sterilization device, the vacuumizing and the high-temperature steam filling of the garbage bag can be smoothly completed in the sterilization device, and a better sterilization effect can be realized under the condition of ensuring the biological safety.

Description

Ventilative type biological safety sterilization disposal bag

Technical Field

The utility model belongs to the technical field of biological safety apparatus, especially, relate to a ventilative type biological safety sterilization disposal bag.

Background

According to the relevant national regulations, in the activities of medical treatment, prevention and control, research, production and the like related to infectious diseases, the generated wastes are packed by medical waste garbage bags and then disinfected. For waste bags containing or potentially containing pathogenic microorganisms, the most common and effective method of sterilization is autoclaving. However, when the garbage bags are sterilized by high-pressure steam, the following problems are often encountered, especially in the prevention and control of the novel coronavirus pneumonia:

firstly, after the wastes are put into the garbage bag, the garbage bag cannot be extruded and exhausted before the opening of the garbage bag is bound; if the garbage bag is squeezed to exhaust air, pathogen aerosol in the garbage bag can be expelled in a large quantity, so that a garbage bag packing person who has taken off the biological safety protection wearing equipment can inhale a large quantity of aerosol containing pathogens, and the risk of infection is greatly increased. However, if the disposal bags are not compressed and then bundled, the volume of the disposal bags is huge, and the disposal bags occupy a large space in the autoclave, so that the number of articles which can be autoclaved by the autoclave every time is greatly reduced, and the problem is particularly obvious when handling large-volume personal protective articles detached by novel coronavirus pneumonia prevention and treatment personnel.

Second, the higher the moisture content, the lower the temperature required for protein coagulation to occur; the high-temperature steam can release a large amount of latent heat, so that the temperature is further increased; and the damp-heat gas has stronger penetrating power than the dry-heat gas, and the damp-heat sterilization effect is better than that of the dry-heat gas at the same temperature. Therefore, the best method for sterilizing the waste garbage bags is to open the opening of the garbage bag and allow high-temperature steam to enter the garbage bag for sterilization. However, when the garbage bag is opened outside the autoclave, pathogenic microorganisms in the garbage bag may leak out, and thus, surrounding personnel may be infected.

Thirdly, when the water vapor contains air, the temperature of the air-containing steam is lower than that of the saturated steam under the same pressure because the expansion pressure of the air is greater than that of the water vapor; therefore, the air is discharged by adopting a preheating method before the high-pressure steam sterilization, and the more advanced method is that the high-pressure sterilization pot is provided with a vacuumizing device, and the air in the high-pressure sterilization pot and the garbage bag is thoroughly discharged by adopting a vacuumizing method so as to achieve the optimal steam sterilization effect. The vacuum pulsation high pressure sterilizing pot is a necessary device for high-grade biological safety protection experiments. However, before the garbage bag containing high pathogenic microorganisms is put into the vacuum pulsation autoclave, the garbage bag cannot be opened, and if the garbage bag is opened, the pathogenic microorganisms in the garbage bag can leak out, so that operators are infected; however, if the garbage bag is not opened, air in the garbage bag cannot be extracted, and high-temperature steam cannot be injected into the garbage bag, so that the high-pressure steam sterilization effect is influenced.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model discloses a breathable biological safety sterilization garbage bag.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a ventilative type biological safety sterilization disposal bag, includes disposal bag body and ventilative filtration membrane, the disposal bag body on be provided with the ventilative filtration membrane that is used for discharging the interior gas of disposal bag and pours into high temperature steam into.

The utility model discloses mainly be to the problem that current biological safety disposal bag exists and design, guaranteed that the disposal bag can both prevent that the pathogenic microorganism of inside from escaping at the in-process of tying up, exhaust, bleeding and shifting to guarantee that high temperature steam can get into in the good disposal bag of tying up, improve the high pressure steam sterilization effect of infectious waste rubbish.

Furthermore, the side face of the garbage bag body is provided with a hole, the breathable filtering membrane is welded and fixed on the hole of the garbage bag body, and the breathable filtering membrane is directly welded on the garbage bag body, so that the garbage bag has the characteristics of simplified structure, simple process, low production cost and low use cost.

Furthermore, the welding mode of the breathable filtering membrane is hot-press fusion welding, ultrasonic welding, pulse welding, high-frequency welding, infrared welding or laser welding, the preferred welding mode is hot-press fusion welding, equipment used by the hot-press fusion welding is simple, and the requirement on technical advancement is not high.

Further, still include the net frame, ventilative filtration membrane set up in the net frame, net frame fixed mounting on the disposal bag body, the net frame can play protection and supporting role to soft ventilative filtration membrane, can also regard as fixed support point to add the air flue of ventilating that is used for preventing that ventilative filtration membrane from blockking up by inside article.

Further, the net rack include net rack inner shell and net rack shell, net rack inner shell and net rack shell block each other, fixed mounting is on the disposal bag body, latticed inside and outside shell mainly play support, protection and fixed action to the ventilative filtration membrane of centre gripping wherein to avoid being inhaled brokenly or puncture in exhaust or evacuation process.

Further, the air-permeable filtering membrane is made of three layers of materials, namely an inner-layer waterproof non-woven fabric, an outer-layer waterproof non-woven fabric and a middle-layer compact melt-blown fabric; the middle layer compact melt-blown fabric can be 1 layer or a plurality of layers. The biosafety protection effect of the dense melt-blown cloth meets the protection grade requirement of more than N95 or KN 95. The whole ventilating filter membrane plays a role in keeping air inside and outside the garbage bag to be smooth and communicated, but also can prevent pathogenic microorganisms from overflowing; wherein, the inner layer and the outer layer adopt waterproof non-woven fabrics so as to prevent the compact melt-blown fabric of the middle layer from being wetted, thereby avoiding influencing the ventilation and filtration effects; the dense melt-blown cloth which reaches the protection level of N95 or KN95 and above is adopted to prevent pathogenic microorganisms in the garbage bag from leaking out in the process of squeezing or vacuumizing the garbage bag.

The utility model has the advantages that: the garbage bag designed by the utility model is different from the general garbage bag in that the ventilating filtering membrane is arranged on the garbage bag, the tied opening of the garbage bag does not need to be untied in the processes of squeezing the internal air after the opening of the garbage bag is tied, transferring and transporting, vacuumizing before high-pressure steam sterilization, high-pressure steam sterilization and the like, and the pathogenic microorganism in the garbage bag can not leak out when the air in the garbage bag is squeezed out or vacuumized out; the design that the grid frame can be provided with the ventilating air passage is more suitable for the use of a vacuum pulsation high-pressure sterilizer, and the ventilating filter membrane is ensured not to be easily blocked by the articles in the garbage bag in the process of vacuumizing the pressure cooker; simultaneously the utility model discloses a disposal bag is fit for packing, transportation and the sterilization of the experimental discarded object that biological safety laboratory produced and deals with.

Drawings

FIG. 1 is a schematic structural view of a first embodiment of a breathable biosafety sterilization garbage bag of the present invention;

FIG. 2 is a schematic structural view of a second embodiment of the air-permeable biosafety sterilization garbage bag of the present invention;

fig. 3 is an exploded perspective view of the grid frame in the air-permeable biosafety sterilization garbage bag of the present invention.

Detailed Description

The present invention is described in detail below with reference to the accompanying drawings:

in the description of the present invention, it should be noted that the directions or positional relationships indicated by "inner", "outer", "side", etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the indicated device or element must have a specific direction, be constructed in a specific direction, and be operated, and thus, should not be construed as limiting the present invention.

Example one

As shown in fig. 1, the breathable biological safety sterilization garbage bag comprises a garbage bag body 1 and a breathable filtering membrane 2, wherein the breathable filtering membrane 2 used for discharging gas in the garbage bag and filling high-temperature steam is welded on the garbage bag body 1 in a hot-pressing fusion mode. When hot-press fusion welding is carried out, one or more circular or polygonal holes are required to be formed in the garbage bag cup body 1, and the area of each hole is 2-30 square centimeters. The trompil position mainly lies in the middle part of disposal bag body 1, then pastes corresponding size's ventilative filtration membrane 2, and rethread hot pressing fuses welding process with both hot pressing fusion fixed connection, guarantees that the hole of opening on the disposal bag body 1 can be sealed the cover completely by ventilative filtration membrane 2. Like this disposal bag can realize after tying up the sack to extrude exhaust, vacuum when bleeding and high-pressure steam sterilization to it, ventilative filtration membrane 2 can not drop, and can guarantee that the air of 1 inside of disposal bag body smoothly discharges but pathogenic microorganism can not spill over and the smooth leading-in effect of high-temperature steam.

Example two

As shown in fig. 2-3, a breathable biological safety sterilization garbage bag comprises a garbage bag body 1, a breathable filtering membrane 2 and a circular grid frame 3 made of plastics, wherein the breathable filtering membrane 2 is arranged in the grid frame 3, the grid frame 3 is fixedly arranged on the garbage bag body 1, and holes need to be formed in the garbage bag body 1 in advance. The grid frame 3 comprises a grid frame inner shell 31 and a grid frame outer shell 32, wherein the grid frame inner shell 31 and the grid frame outer shell 32 are mutually clamped and fixedly installed on the garbage bag body 1, namely, are installed on the holes formed in the garbage bag body 1. For the leakproofness and the stability of block, fixed mounting, still should be provided with rubber circle, recess and boss at the net rack inner shell 31 and net rack outer shell 32 junction, guaranteed the sealed fastness of block connection through mutually supporting of three. When the garbage bag is installed, the grid frame inner shell 31 is positioned inside the garbage bag body 1, the grid frame outer shell 32 is positioned outside the garbage bag cup body 1, and the breathable filtering membrane 2 is fixedly installed between the grid frame inner shell 31 and the grid frame outer shell 32. The grid frame 3 can also be used as a fixed supporting point for hanging an air duct for preventing the air-permeable filtering membrane 2 from being blocked by internal articles.

The breathable filtering membrane 2 and the grid frame 3 in the second embodiment can be independently used as an independent structure, for example, a circular hole is formed in an original garbage bag, and then the grid frame 3 is installed.

The utility model uses a permeable filtering membrane 2 which is composed of three layers of materials, namely an inner layer waterproof non-woven fabric, an outer layer waterproof non-woven fabric and a middle layer compact melt-blown fabric; the middle layer compact melt-blown fabric can be 1 layer or a plurality of layers. The biosafety protection effect of the dense melt-blown cloth reaches the protection level requirements of N95 or KN95 and above.

Although particular embodiments of the present invention have been described and illustrated in detail, it should be noted that various changes and modifications could be made to the above-described embodiments without departing from the spirit of the invention and the scope of the appended claims.

Claims

1. The utility model provides a ventilative type biological safety sterilization disposal bag, its characterized in that includes disposal bag body (1) and ventilative filtration membrane (2), disposal bag body (1) on be provided with and be used for arranging, take out the interior gas of disposal bag and pour into ventilative filtration membrane (2) of high temperature steam into.

2. The air-permeable biosafety sterilization garbage bag according to claim 1, wherein the side surface of the garbage bag body (1) is provided with a hole, and the air-permeable filtering membrane (2) is welded and fixed on the hole of the garbage bag body (1).

3. The air-permeable biosafety sterilization garbage bag according to claim 2, wherein the welding mode of the air-permeable filtering membrane (2) is hot-press fusion welding, ultrasonic welding, pulse welding, high-frequency welding, infrared welding or laser welding.

4. The air-permeable bio-safe sterilization garbage bag according to claim 1, further comprising a grid frame (3), wherein the air-permeable filtering membrane (2) is arranged in the grid frame (3), and the grid frame (3) is fixedly installed on the garbage bag body (1).

5. The air-permeable bio-safe sterilization trash bag of claim 4, wherein the grid (3) comprises an inner grid shell (31) and an outer grid shell (32), and the inner grid shell (31) and the outer grid shell (32) are mutually clamped and fixedly mounted on the trash bag body (1).

6. The air-permeable biosafety sterilization garbage bag according to any one of claims 1-5, wherein the air-permeable filtering membrane (2) is made of three layers of materials, namely an inner waterproof non-woven fabric, an outer waterproof non-woven fabric and a middle dense melt-blown fabric; the biosafety protection effect of the dense melt-blown cloth meets the protection grade requirement of more than N95 or KN 95.