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Medical waste container treatment method

A technology of medical waste and treatment method, applied in the direction of waste disinfection or sterilization, solid waste removal, chemistry, etc., can solve the problem of lack of universality and achieve the effect of reducing diffusion

Pending Publication Date: 2018-08-03
TAIKO PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there have been proposals for the treatment of medical waste using chlorine dioxide, in order for the disinfection effect of chlorine dioxide to penetrate into every corner of medical waste, these wastes must be continuously exposed to chlorine dioxide. Therefore, A large-scale device is necessary (for example: Patent Document 1, Patent Document 2), or medical waste must be crushed and immersed in a disinfectant solution containing chlorine dioxide (for example: Patent Document 3), and lacks universality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Example 1 : The chlorine dioxide concentration continuous effect in the space of the chlorine dioxide liquid agent of the present invention

[0061]

[0062] The chlorine dioxide solution of the present invention is prepared as follows. First, 17 L of water was added to 500 ml of a 25% by weight solution of sodium chlorite to prepare a sodium chlorite aqueous solution. Then, 1000 ml of chlorine dioxide aqueous solution having dissolved chlorine dioxide gas of 2000 ppm was prepared, and then mixed and stirred with the sodium chlorite aqueous solution. Next, sodium dihydrogen phosphate and water are added in such a quantity that the pH of this solution becomes 5.5 to 6.0, and then stirred. Carry out such operation, obtain the chlorine dioxide liquid agent 20L (that is, obtain and comprise sodium chlorite 0.625% by weight, chlorine dioxide gas 100ppm and pH be 5.5 to 6.0 solution). In this embodiment, the chlorine dioxide solution is called "the chlorine dioxide sol...

Embodiment 2

[0069] Example 2 : Sterilization of microorganisms in medical waste containers using the chlorine dioxide solution of the present invention

[0070]

[0071] image 3 The experimental outline of this example is presented. And the chlorine dioxide liquid agent used in this Example was the chlorine dioxide liquid agent prepared by the same method as described in Example 1.

[0072] First, prepare containers (40L) for medical waste used in hospitals, etc. ( Figure 4 ), with a compartment in the center of the container (to 2 / 3 of the height of the container). One compartment was set with Petri dishes with E. coli attached facing up (Setup A), and the other with the same Petri dishes facing down (Setup B). Spray 83% ethanol or the chlorine dioxide solution of the present invention towards the petri dish of setting A, and after 1 hour, recover Escherichia coli from the petri dishes of setting A and setting B, and measure the number of viable bacteria according to the convent...

Embodiment 3

[0077] Example 3 : Inactivation of virus in medical waste container using chlorine dioxide solution of the present invention

[0078]

[0079] Experimental virus: feline calicivirus (feline calicivirus, FCV, F9, ATCC VR-782) (used as a replacement for norovirus)

[0080] Host cells: Crandell Rees feline kidney cells (CRFK, ATCC, CCL-94)

[0081] Chlorine dioxide gas generation source: the chlorine dioxide liquid preparation prepared in the same way as described in Example 1

[0082] Experimental equipment

[0083] ·1m 3 chamber (order item)

[0084] 96-well microtiter plate (353072, FALCON)

[0085] 96-well deep-well plate (BM6030, BM Bio)

[0086] Reagent storage container / Tip-Tub (022265806, eppendorf)

[0087] ·AC fan (MU825S-13N, ORIX)

[0088] ·Glass petri dish (305-02, Top)

[0089] · Cell scraper (179693, Thermo)

[0090] ·Gas detector (No. 23L chlorine dioxide, GASTEC)

[0091] experimental machine

[0092] · CO2 incubator (MCO-175AICUVH, PANASONIC)

[...

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Abstract

[Problem] To provide a method for safely and conveniently treating medical waste that could contain harmful microorganisms in a medical waste container. [Solution] A method for treating a medical waste container that contains medical waste accompanied by a harmful microorganism, the method involving a step for using a liquid agent containing chlorine dioxide gas and chlorite in a medical waste container, and being characterized in that the liquid agent is provided with a composition that discharges the chlorine dioxide gas in a sustained release manner.

Description

technical field [0001] The invention relates to a treatment method of a medical waste container containing medical waste accompanied by harmful microorganisms using a liquid agent containing chlorine dioxide gas and chlorite. Background technique [0002] In recent years, emerging / re-emerging infectious diseases such as ebola hemorrhagic fever and novel influenza have occurred around the world and become a major problem. The waste that patients with these infectious diseases come into contact with (such as cloth or toilet paper with patient body fluids attached), and the medical equipment (such as: syringes) used by these patients for treatment, may become a source of infection, so they need to be treated appropriately. Medical waste disposal. [0003] Since medical waste may contain pathogens infected by animals, etc., it needs to be disposed of under higher management than general waste. Generally speaking, after medical waste is discarded / stored in a dedicated medical w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L11/00A61L2/20B65B55/10C01B11/02A61L101/06
CPCA61L2/20A61L11/00B65B55/10C01B11/02B09B3/0075A61L2202/23A61L2202/24
Inventor 森野博文小泉朋子柴田高
Owner TAIKO PHARMA
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