JPH0634830B2 - Disinfection method in breathing equipment circuit - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for disinfecting a breathing circuit such as an anesthesia machine and a respirator.

[0002]

2. Description of the Related Art Disinfection in a breathing circuit of anesthesia machine, artificial respirator, etc. is extremely important to prevent mutual infection. Currently, disinfectant such as rubbing alcohol or formalin is used in the breathing circuit with nitrogen etc. Is sent as a carrier gas for sterilization, and as a means therefor, for example, JP-A-52-23
No. 888 is disclosed.

[0003]

In the disinfection method of the conventional means, when the water contained in the exhaled breath of the patient adheres to the breathing circuit immediately after the operation or the like, and the disinfection step is performed with the water remaining. However, the disinfectant was diluted due to the water remaining on the surface, and a sufficient disinfecting effect was not obtained.

In addition, since the carrier gas for expulsion in the step of releasing the excess disinfectant gas in the disinfecting step and the step of excluding the disinfectant remaining in the breathing circuit after the disinfecting step is exhausted directly to the atmosphere, the drug is diffused and diffused. There was an inconvenience such as generation of odor.

[0005]

SUMMARY OF THE INVENTION The present invention aims to eliminate the inefficiency of the disinfection effect due to residual water in the above-mentioned conventional means, and to eliminate the inconvenience caused by the direct release of the disinfectant gas and the carrier gas for eliminating the residual disinfectant into the atmosphere. This was done for the purpose of disinfecting the carrier gas containing a disinfectant into the breathing circuit, and then sending the carrier gas into the breathing circuit after the disinfection process to remove the residual disinfectant in the breathing circuit to the outside. In performing the disinfectant elimination step of discharging, before the disinfection step, a dry gas is sent into the breathing circuit to perform a drying step of eliminating water adhering to the breathing circuit due to patient exhalation, Further, the disinfecting step of sending a carrier gas containing a disinfectant into the breathing circuit, and then sending the carrier gas to the breathing circuit that has completed the disinfecting step to transfer the remaining disinfectant in the breathing circuit to the outside. In the step of performing the disinfectant elimination step, the carrier gas containing the disinfectant in the disinfection step and the disinfectant contained in the carrier gas by releasing the carrier gas in the disinfectant elimination step into the atmosphere through water It is characterized in that the drug is absorbed and removed by water and released.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An apparatus for carrying out the present invention and its operation will be described with reference to FIGS.

As shown in the figure, the apparatus comprises a gas source 1 such as an air pump, a heater 2, a disinfectant tank 3, a water tank 4 and an appropriate number of switching cocks 5, 6 and 7, an anesthesia machine and a respirator. The breathing circuit A such as a switch cock between the disinfectant tank 3 and the water tank 4,
Perform disinfection work by connecting via 7.

Next, the method of disinfecting the breathing circuit A according to the present invention using this apparatus will be described. Prior to the disinfection process
During the operation, a drying process is performed to remove the water adhering to the breathing circuit A due to the exhalation of the patient.

In the drying process, the gas source 1 such as a pump is driven to switch the cocks 5, 6 and 7 to heat air or an appropriate carrier gas by the heater 2 to an appropriate temperature and send the dried gas to the breathing circuit A. Then, the moisture adhering to the circuit A is dried and removed, and the processing gas is discharged to the atmosphere through the cock 7 as shown by the arrow.

In this case, the heater 2 is provided at an arbitrary position between the gas source 1 and the breathing circuit A. Further, as the heater 2, any heat source such as an electric heating type or hot water can be used. Further, the heater 2 can be fed with a dry gas from a cylinder without being provided in a carrier gas passage as shown in the drawing.

After the drying process is completed, the cocks 5, 6, 7 are switched by a timer operation or the like to perform the disinfection process.

In the disinfection step, as shown in FIG. 2, the carrier gas from the gas source 1 is carried through the disinfectant tank 3 to carry the disinfectant,
It is sent to the breathing circuit A through the cock 6, and disinfects the inside of the supply circuit A in which the water remaining attached by the drying process of the previous step is completely removed, and the disinfecting gas that has finished the disinfecting action passes through the cock 7 and is stored in the water tank 4. The water is allowed to pass through in the form of foam to absorb and remove the disinfectant in the carrier gas containing the disinfectant into water, thereby diluting the disinfectant gas concentration and then releasing it to the atmosphere. After the disinfection step for a certain period of time is completed, the disinfection step removes the disinfectant remaining in the breathing circuit A.

In the disinfectant removal step, as shown in FIG. 3, when a suitable carrier gas is supplied from the gas source 1 and a heater 2 is provided in its flow path, the heater 2 heats the carrier gas to an appropriate temperature, or a heater. The carrier gas is passed through the breathing circuit A without being heated by 2, and the disinfectant remaining in the breathing circuit A is carried by the disinfecting step of the previous process to clean the inside of the breathing circuit A, and the carrier gas is supplied to the cock 7. After that, the residual disinfectant entrained in the carrier gas is absorbed and removed by blowing it into the water tank 4 and passing it through the water in the form of foam to release the carrier gas to the atmosphere.

The carrier gas used in the disinfecting step and the disinfectant removing step may be the carrier gas packed in the cylinder without being conveyed by the pump.

[0015]

According to the present invention, the dry gas is passed through the breathing circuit prior to the disinfection process in the breathing circuit such as the anesthesia machine or the artificial respirator, so that the breathing circuit of the patient is exhaled during the operation. In order to remove the residual water that adheres, the disinfectant in the disinfecting step is diluted by the adhered water to eliminate the adverse effect that a sufficient disinfecting effect cannot be obtained, and the disinfecting effect can be accurately obtained. The disinfectant gas and the carrier gas for disinfectant removal in the disinfectant removal process performed after each action pass through water to absorb and remove the disinfectant in the gas into the water and release it to the atmosphere. Therefore, there is an effect that these released gases do not cause any inconvenience to the surrounding environment.

[Brief description of drawings]

FIG. 1 is a system diagram of the present invention showing the action of a drying process.

FIG. 2 is a system diagram of the present invention showing the action of the disinfection process.

FIG. 3 is a system diagram of the present invention showing the action of the disinfectant elimination step.

[Explanation of symbols]

 A Breathing circuit 1 Gas source 2 Heater 3 Disinfectant tank 4 Water tank 5, 6, 7 Switching cock

Claims (2)

[Claims] 1. A disinfecting step of sending a carrier gas containing a disinfectant into the breathing apparatus circuit, and then sending a carrier gas into the breathing circuit after the disinfecting step to release the residual disinfectant in the breathing circuit to the outside. In the step of performing the disinfectant elimination step described above, before the disinfection step, a dry gas is sent into the breathing circuit to remove the water adhering to the breathing circuit by the exhalation of the patient. Disinfection method in equipment circuit. 2. A disinfecting step of sending a carrier gas containing a disinfectant into the breathing apparatus circuit, and then sending a carrier gas into the breathing circuit which has completed the disinfecting step to release the residual disinfectant in the breathing circuit to the outside. In the step of performing the disinfectant removing step, the disinfectant gas sent in the disinfecting step and the carrier gas sent in in the disinfectant removing step are released into the atmosphere through the water to disinfect the disinfectant contained in the carrier gas. A method for disinfecting a respiratory equipment circuit, which comprises absorbing and removing the oxygen into and releasing it.