JPH0587730B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a container for storing and disposing of a large number of used injection needles that are no longer needed.

[Conventional technology]

Currently, used syringe needles are generally disposed of along with other waste through normal garbage disposal routes.

[Problem to be solved by the invention]

However, it has recently been discovered that serum hepatitis or AIDS can also be transmitted through injection needles, and the need for careful handling and safe disposal of used injection needles has been emphasized.

Therefore, an object of the present invention is to provide a container for disposing of syringe needles, which allows for highly safe and reliable disposal.

[Means to solve the problem]

In order to achieve this purpose, the container for disposing of syringe needles of the present invention is provided with a fluxing agent that does not react at room temperature at the bottom, and a container in which used syringe needles are deposited on the fluxing agent and transported to a high-temperature incineration furnace. and a lid for closing the top of the container body, at least the inner surface of the container body adjacent to the flux has a heat-resistant reinforced structure to prevent the container from being damaged by reaction heat of the flux, and The lid is characterized in that it has a structure in which a gas vent hole is formed before the flux reaction start temperature is reached during the heating process of the container.

[Effect]

According to the present invention, used syringe needles are put into a container, a predetermined amount is deposited above the flux at the bottom of the container, and the containers are preferably packed in a plurality of containers with the opening closed with a lid. Transport to high temperature incineration furnace. After that, during the process of increasing the temperature inside each container, by the time the reaction start temperature of the flux is reached, the non-metallic parts such as plastic attached to the injection needle will be melted and burned away, and only the metal injection needle will remain on the flux. . The combustion gas generated at this time can be blown out of the container from the gas vent hole created in the lid during the heating process of the container. To prevent the container from bursting or the lid from being blown off due to an increase in the internal pressure of combustion gas. When the temperature rises further while the container retains its original shape and the temperature inside the container reaches the reaction start temperature of the flux, the injection needle is melted and burned away by the reaction heat of the flux. After or at the same time that the needle is completely melted and incinerated, the heat of reaction of the flux and the final operating temperature in the furnace will cause the portion of the container that is not heat-reinforced to melt as well. The odor, smoke, and combustion gas generated by the rise in temperature inside the container and the flux reaction are decomposed by the high heat in the furnace and are exhausted as almost odorless and smokeless gas.

〔Example〕

Next, preferred embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a diagrammatic longitudinal cross-sectional view of a preferred embodiment of a syringe needle disposal container according to the present invention. In this example, the operating temperature inside the furnace is 1100° to 1200°C.
In order to apply it to a high-temperature incineration furnace, the container body 1 is approximately
It is made up of an iron can that melts at 1000℃, and the lid 2 is approximately
It is made of aluminum that can be melted at 600°C, and is provided with a female screw part 4 that screws into the spiral thread 3 at the top of the container body 1, so that the opening at the top of the body is closed by screwing the two together. This lid 2 is preferably provided with a hole 5 in the center of the lid, which hole 6 is closed by a seal 6 of a material that is bath melted and burnt out at about 200°C. It is also possible to make this part thin without specifically providing the hole 5. This thin walled portion can be burned away during the heating process of the container, creating a hole. These holes are formed during the heating process of the container by selecting the material and structure of the lid, or by attaching chemicals, and function as gas vent holes. Further, a heat-resistant lining 7 is provided on the inner surface of the lid 2, excluding the hole 5 and the outer peripheral portion, by, for example, adhesion. In this embodiment, the opening at the top of the main body serves as the injection needle inlet, but the lid is integrally fixed to the container body, and the inlet is provided in a separate part to block this inlet. Furthermore, the hole 5 can also be used as an injection needle insertion port.

The inner surface of at least the lower part of the container body 1 has a heat-resistant reinforced structure, for example, is finished with a heat-resistant lining, and preferably has a double-walled structure or a thick wall. Thermite 9, which has a reaction initiation temperature of about 1150° C., is placed as a flux on this heat-resistant reinforced bottom portion 8. Furthermore, the heat-resistant reinforced bottom part 8 is
As shown in the figure, it is preferable that the top surface of the thermite 9 protrudes radially inward so as to cover the periphery. This is to ensure that the needle of the injection needle housed inside is always positioned above the thermite 9. As the flux, any substance other than thermite can be used as long as it can obtain reaction heat sufficient to achieve the purpose and initiates the reaction at an appropriate temperature.

Syringe needles are generally made of iron or stainless steel, and in the case of stainless steel, the melting temperature is
The temperature is 1470℃ or higher. A large number of such used syringe needles are stored in the container 1 according to the present invention, and after the container 1 is completely closed with a lid or the like, one or more containers are incinerated at a high temperature with an operating temperature of about 1100°C to 1200°C. Transport it to the furnace. In the process of heating the container and raising the temperature inside the furnace to a steady state, the non-metal parts such as plastic attached to the syringe needle are first melted and burned away due to the rise in the temperature inside the container, and combustion gas is generated. At this time, only the injection needle accumulates above the thermite 9. The internal pressure of the container increases due to the combustion gas generated as the temperature rises, but the seal part 6 melts and burns out at a temperature of about 200°C, creating holes 5, which allow the gas to flow out and accumulate. This prevents the container from being destroyed or the lid from being blown off due to an increase in internal pressure due to the combustion gas. Furthermore, in the illustrated embodiment, the heat-resistant lining 7 of the lid 2 falls due to the melting of the adhesive as the temperature rises and covers the build-up of the needle on the thermite, promoting heat accumulation and providing an additional layer for melting the needle. Able to provide assistance. After this, when the temperature inside the container reaches the reaction start temperature of thermite, thermite 9
generates reaction heat of 2000° to 2800°C, completely melting and burning out the injection needle. Steady operating temperature in the furnace of 1100°~
When the temperature reaches 1200°C, the outer shell of the container 1 will also melt and burn away, depending on the material of the container. The odor, smoke, and combustion gas generated during the process of raising the temperature inside the container are decomposed by the high heat inside the furnace and become odorless and smokeless, but this exhaust gas is reheated and burned or treated with a catalytic reaction to make it completely harmless. It is also possible to exhaust the air in a clean state.

The container body and lid can be made of any material as long as it has the required function.

〔Effect of the invention〕

In order to melt and incinerate a stainless steel syringe needle with a melting temperature of 1470°C, a high-temperature furnace that continuously generates heat of 1500°C or more is required, and in order to achieve such a furnace temperature of 1400°C or more, There are disadvantages in that the structure and materials of the furnace must be expensive, the service life is short, and maintenance factors are increased. However, according to the container for disposing of syringe needles of the present invention, the melting temperature can be reduced by using a high-temperature incinerator that is relatively inexpensive, has a long service life, and does not require much maintenance. Stainless steel injection needles can be completely melted and incinerated at 1470℃.

In addition, it is possible to reliably and safely prevent secondary infections of terrible diseases such as serum hepatitis and AIDS due to careless handling of used needles.

[Brief explanation of drawings]

FIG. 1 is a diagrammatic longitudinal cross-sectional view of a preferred embodiment of a syringe needle disposal container according to the present invention. 1... Container body, 2... Lid, 3... Spiral thread, 4...
Female thread part, 5... Hole, 6... Seal part, 7... Heat resistant lining, 8... Heat resistant reinforced bottom, 9... Thermite.

Claims (1)

[Claims] 1. A container body that is provided with a flux that does not react at room temperature at the bottom, used syringes are deposited on the flux, and is stored and transported to a high-temperature incineration furnace; and a lid that closes the top of the container body; At least the inner surface of the container body adjacent to the flux has a heat-resistant reinforced structure that prevents the container from being damaged by reaction heat of the flux;
The container for disposing of syringe needles is characterized in that the lid is configured to form a gas vent hole before the temperature of the container reaches the flux reaction start temperature during the heating process of the container.