JP7249571B2 - liquid waste treatment equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a processing apparatus for sucking and processing liquid waste such as blood, body fluids, and other secretions generated at medical sites, and in particular, deodorizes the odor of bags containing liquid waste. The present invention relates to a liquid waste disposal system for reducing or reducing waste.

Blood, bodily fluids, and other secretions generated at medical sites, as well as liquid waste such as physiological saline used to wash the affected area, are aspirated and stored in a bag, solidified, and then incinerated together with the bag. are disposing. Since such bags containing liquid waste are treated as consumables, they are generally stored in transparent containers that have appropriate rigidity and can be used repeatedly.

For example, in the liquid waste treatment apparatus described in Patent Document 1, a flexible bag is housed in a rigid bottle, and a space formed between the bag and the bottle is in a negative pressure state. Thus, the interior of the bag is kept in a negative pressure state. By bringing the tube connected to the bag closer to the target site, the liquid waste is sucked and stored in the bag.

Patent No. 6194203 (JP 2015-024085)

Liquid waste generated in the medical field has a unique odor caused by aspirated blood and sputum. In particular, when the bag is replaced, there is a problem that odor leaks out and causes discomfort to the surroundings.

SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid waste disposal apparatus capable of deodorizing or reducing odors remaining in a storage space in which a bag containing liquid waste is sucked and stored.

The inventors of the present invention have decided to utilize the characteristics of ozone in developing a liquid waste treatment apparatus capable of deodorizing the odor that remains in the housing space of the bottle housing the bag housing the liquid waste. I paid attention. Then, an evaluation was made as to whether or not the high oxidizing performance of ozone can be used for deodorizing liquid waste.

Ozone is a gas composed of three oxygen atoms and has a unique odor, and has various effects such as sterilization, deodorization, decolorization, and oxidation. Due to this action, ozone kills airborne bacteria such as common bacteria and molds that are considered to be the cause of secondary infections in hospitals by its oxidative decomposition power. It is known to decompose chemical substances such as ammonia smell, putrid smell of garbage, etc.) and nicotine, carbon monoxide, hydrogen sulfide.

As an evaluation method, an olfactory measurement method (sensory test) was used in which evaluation is performed by having multiple subjects actually smell the odor. This olfactory measurement method is used as a method for objectively quantifying malodors in the environment based on the Offensive Odor Control Law. In this method, evaluation was carried out by the official method, the “three-point comparison odor bag method”.

In particular, the subject (olfactory panel) must have a general sense of smell. For this reason, a "panel selection test using a standard odor liquid" was conducted on test subject candidates, and 6 panelists who satisfied certain criteria were employed for evaluation.

Instead of the "liquid waste" generated in medical institutions, the object of evaluation was "rotten pork odor", which is similar in nature to the offensive odor generated from this liquid waste. Then, the pork before rotting is wrapped in a vinyl bag, and this bag is sealed in a closed container having a volume equivalent to the storage space constituting the liquid waste treatment apparatus, and two samples (first sample, second sample) )It was created.

The first sample was in a state in which the plastic bag in which the pork was wrapped was sealed, and the second sample was provided with an ozone generator. Then, after a certain period of time had passed and the pork in both samples was spoiled to the same degree, the ozone generator provided in the second sample was operated to expose the pork to ozone for 24 hours.

Each original odor was sucked from the two samples and injected into the odor bag, and the odor was measured by each panel. As a result, the odors of the two samples were clearly different. In the first sample, even if the original odor was diluted 100,000 times, 5 people could smell it, and even if it was diluted 300,000 times, 2 people could not smell it. It was when the solution was diluted to 1,000,000 times that no one felt the odor. When the second sample was diluted 1000 times, 5 people could smell it, but when it was diluted 3000 times, all of them could not smell it.

As a result of the above evaluation, the liquid waste treatment apparatus according to the present invention includes a storage space that houses a bag body that houses liquid waste and is connected to a negative pressure generation source, an ozone generator that generates ozone, and An ozone generator and a passage connecting the accommodation space are provided, and the ozone generated by the ozone generator is supplied to the accommodation space to deodorize the accommodation space.

In the above liquid waste treatment apparatus, an ozone generator is provided, and the ozone generator and the housing space are connected by a passage, so that the generated ozone is supplied to the housing space, whereby the liquid waste is contained in the bag. Odors that sometimes arise can be deodorized by ozone.

In particular, the ozone supplied to the accommodation space by the ozone generator oxidizes and decomposes the odors remaining in the accommodation space, and replaces the bags containing the liquid waste that have been a problem in the past. It is possible to reduce the diffusion of unpleasant odors in the case.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure explaining schematic structure of the liquid waste processing apparatus which concerns on a present Example. It is a block diagram showing the configuration of the control system of the liquid waste treatment apparatus according to the present embodiment.

A liquid waste treatment apparatus (hereinafter referred to as "treatment apparatus") according to the present invention will be described below. The treatment apparatus according to the present invention emits odor from the bag when liquid waste such as blood and body fluids in medical institutions or sputum in home medical care is sucked and stored in the bag. can be deodorized or reduced by ozone.

For this reason, the processing apparatus according to the present invention has an accommodation space for accommodating the bag body, an ozone generator, and a passage connecting the accommodation space and the ozone generator. By supplying the ozone generated by the ozone generator to the accommodation space through the passage, it is possible to deodorize or reduce the odor of the accommodation space.

There is no limitation on how the storage space for storing the bag is configured. However, it is preferable to form a container (bottle) having moderate rigidity and to form a storage space inside the bottle. Hereinafter, a container in which a storage space is formed will be referred to as a bottle.

In the present invention, the capacity of the storage space is not limited, and is selected according to whether the target for suction of liquid waste is an operating room, a hospital room, or home medical care in a medical institution. It is preferable to appropriately set according to the shape and capacity of the bag.

Also, the shape and volume of the bottle in which the storage space is formed are not limited. Furthermore, the material of the bottle is not limited, and it is preferable to appropriately set the material according to conditions such as the weight of the liquid waste contained in the bag and the degree of negative pressure acting on the containing space. In particular, the accommodation space is preferably transparent so that the amount of suction in the bag body accommodated in the accommodation space can be visually confirmed.

The generation method for generating ozone by the ozone generator is not limited, and generators available on the market, such as a corona discharge method and a silent discharge method, can be employed.

The ozone generation capacity of the ozone generator is not particularly limited, and is preferably selected according to the capacity of the bag accommodated in the bottle to be attached. That is, since the capacity of the bag corresponds to the capacity of the housing space of the bottle, it is preferable to set the specification of the ozonizer according to the capacity of the housing space formed in the bottle.

Further, the location of the ozone generator on the bottle is not limited. For example, the ozone generator may be located in the space inside the handle formed on the bottle . Thus, even when the ozone generator is arranged in the space inside the handle , it is essential to connect the space inside the handle and the housing space with a passage.

The ozone generator can be operated by any means without any limitation. A battery may be attached to any of the bottles, and a switch may be provided. By manually operating the switch, ozone can be generated or stopped. It is possible to

Ozone supplied from the ozone generator to the accommodation space flows in the direction of the negative pressure generation source connected to the accommodation space. For this reason, it is preferable to provide an ozone filter at the connecting portion between the accommodation space and the negative pressure source. By providing the ozone filter in this manner, it is possible to prevent the ozone supplied to the accommodation space from flowing out of the accommodation space.

Next, an embodiment of a liquid waste disposal apparatus according to the present invention will be described with reference to the drawings. As shown in FIG. 1, the liquid waste treatment apparatus comprises a main body A and an ozonizer B attached to a handle portion of the main body A. As shown in FIG.

The main body A includes a bottle 11 that encloses a bag in which liquid waste is sucked and stored, a pressure regulator 12 that is arranged on a lid that covers the upper surface of the bottle 11 and adjusts the suction pressure, and a suction from the outside. It is composed of a tube 13 for introducing pressure and a tube connection port 14 for introducing liquid waste from the affected area. The lid has a structure that can be removed when replacing the bag containing the liquid waste.

The ozone generator B includes an electrode 15 for generating ozone, a pipe 16 for supplying ozone by connecting it to the bottle 11, an odor sensor 17 for detecting the state of bad odors in the container, and a detection state of the odor sensor 17. It is composed of a control system 18 for controlling the generation of ozone based on the above, and a driving power supply unit 19 .

As shown in the block diagram of FIG. 2, the ozone generator B includes a power supply section 21 that supplies power from a rechargeable battery, and a power supply that appropriately converts the voltage and current supplied from the power supply section 21 and supplies them to each section. A control unit 22, an odor sensor 23 (17) that detects the state of odor in the bottle 11, an ozone generator 25 that generates ozone by means of a high voltage generation circuit and a discharge electrode, power supply management for the ozone generator B, and odor control. It has a central control section 24 that processes information from the sensor 23 (17), controls the ozone generating section 25, and secures an appropriate amount of ozone generation.

In this embodiment, the ozone generator B is designed to be housed in the hand-held portion of an existing medical inhaler, so as not to greatly affect conventional usage.

Also, if the battery that supplies power to the ozone generator B is appropriately replaced or charged, the control system automatically detects the state of odor inside the accommodation space obtained from the odor sensor 23 (17). It has the function of supplying a reasonably appropriate amount of ozone to the inside of the container.

INDUSTRIAL APPLICABILITY The liquid waste disposal apparatus according to the present invention is advantageous when liquid waste such as blood, bodily fluids, and other secretions that need to be disposed of at medical sites is sucked, coagulated, and disposed of. .

A Body B Ozone Generator 11 Bottle 12 Pressure Regulator 13 Tube 14 Tube Connection Port 15 Electrode 16 Pipe 17 Odor Sensor 18 Control System 19 Driving Power Supply Section 21 Power Supply Section 22 Power Control Section 23 Odor Sensor 24 Central Control Section 25 Ozone generator

Claims (2)

A storage space having rigidity and containing a bag for storing liquid waste formed inside and connected to a negative pressure generating source, and a handle formed with a passage connected to the storage space so as to allow ventilation. and a bottle having
a pressure regulator arranged in the lid covering the bottle for adjusting the pressure acting on the housing space of the bottle; a connection port formed in the lid for connecting a tube for sucking liquid waste;
an ozone generator arranged in a passage formed in the handle of the bottle and generating ozone;
A liquid waste treatment apparatus, characterized in that the ozone generated by the ozone generator is supplied to the accommodation space to deodorize the accommodation space. 2. The apparatus according to claim 1, further comprising: an odor sensor for detecting an odor in said housing space; and a control unit for controlling said ozone generator according to the state of odor in said housing space detected by said odor sensor. The liquid waste treatment device described in 1.

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