DE1642103A1 - Method and device for cleaning instruments - Google Patents

Description

Method and apparatus for cleaning instruments "The invention refers to a system for cleaning and disinfecting medical instruments, glass tubs or the like. In one operation, cleaning by ultrasound and disinfecting by treatment in a suitable liquid, for example water at 1oo0 C is effected, the whole proceeding according to a program.

In hospitals it is common practice to infect instruments, by placing them in baskets in a disinfection container (boiling-out tub). This container that the connection between the sterile and the non-sterile Department is accessible from both sides of a partition.

The instruments are placed on one side of the partition wall in the Container inserted and removed after disinfection on the other side. The container with lids on both sides of the partition is opened with the help of heated by steam-heated or electric heating elements.

Before this treatment, the instruments must be removed from clotted blood particles etc. to be cleaned. This is done by hand, although ultrasonic cleaning already takes place is completely known.

The system according to the invention makes cleaning by hand thereby there is no need for cleaning to take place in the heated disinfection vessel.

Further features and advantages of the invention emerge from the following Description of an embodiment shown in the accompanying schematic drawings.

Fig. 1 is a section through the container and the partition which the separating sterile room A from the remaining rooms, Fig. 2 is a view of the container and the wall on which the control panel is indicated.

In the container 1 there are steam coils 2 and / or electrical ones Elements, 3, which can be used for heating as desired or in combination.

There are also two transducers for ultrasonic cleaning or transducers 4 in the container which cause the contents to vibrate without as a result, concessions regarding the desired disinfection temperature of 100 ° C need to be done.

The transducers in the form of large, flat parts that form the biggest Brush part of the base surface, are arranged between the heating elements. The baskets 5 with the instruments to be treated are placed over it and are inserted in the usual way on one side of the wall and taken out on the other side. The whole facility is in stainless Steel executed.

The process runs completely automatically and is supported by a Punch card regulated, with the cleaning of the container and its contents special Attention is paid.

At the beginning of the procedure, the instruments placed in the baskets sprayed with cold water, if necessary with the addition of compressed air. this happens with the drain open.

The container is then closed up to level 6 by closing the Expiry 7 filled, while sprayers 8 spray in the top of the container for a long enough time, to fill the container.

During filling, a cleaning agent, for example by means of added to a small metering pump via an inlet opening. Except through the program the small pump can, for example, also be operated with a push button on both sides can be operated from the control panel.

Then at a relatively low temperature with ultrasound, for example Weep for a long time, then the content for example to 400 C, at which temperature the clotted blood and protein dissolve. These The temperature is maintained during the period that is also to be set. At this temperature, the contents are treated again with ultrasound, after which the The container is completely emptied. This happens after some of the water content is only discharged via an overflow 10, for which purpose water is first admitted must become. This can be done with water spray, but preferably by that Water introduced via a supply line 11 at some distance below the Wassa surface will.

By draining over the overflow it is achieved that floating Impurities cannot settle on the instruments, as can be done by a sinking level due to normal draining of the company list the surface becomes useful if it is considered that this does not result in this surface is disturbed, as with the addition of water via spray nozzles. After so the surface water. is diverted over the upper reaches, the container is completely over the one below Drainage emptied, whereby the downwardly sunk impurities also disappear.

The container is then filled again, again by spraying with the derivation open at the beginning. This can be done with cold, hot or softened water and also with or without additions. Afterward is heated to higher temperatures, for example to 800 or 1000C. Of the Content is set during a period to be set using punch cards, for example 10 minutes at the set temperature, for example by means of a contact thermometer held. The temperature of the contents is then increased to + 400 C by adding lowered by cold water, after which the water is drained again first again via the overflow and then through the drain below.

The whole process is automatic. In the converter circuit a level switch is switched on so that ultrasound cleaning is not possible can if the vessel is not filled with liquid to a certain level is.

The system can be operated and controlled from the sterile room namely via the control panel 12 in the partition wall 13, in which the machine is installed is.

The program can be set to its initial state on both sides be arbitrarily interrupted or switched faster to one following program point, so that the operator is free to do any part of the program of the program.

PATENT APPLICATION. ~

Claims (9)

Claims: 1. Method for cleaning and disinfecting medical Instruments, glassware or the like., Characterized in that the in a corresponding Goods to be cleaned housed in a container are sprayed with water through a shower head the container, which is then placed in a water bath, with ultrasound is treated after draining the water and again filling the water bath Temperature set to 34 to 42 0 and again the items to be cleaned treated with ultrasound and finally after the waste water has run off the goods are disinfected by higher heating and then cooled again. 2. The method according to claim 1, characterized in that the individual Process stages a detergent or cleaning agent is added. 3. The method according to claim 1 and 2, characterized in that the Disinfection takes place at a temperature of 70 and 1 100 C. 4. The method according to claim 1 to 3, characterized in that the Lower the temperature after completing the disinfection process step Showering is done with cooler water. 5. The method according to claim 1 to 4, characterized in that between the individual process steps by adding water below the water surface the floating debris is decanted. 6. Apparatus for performing the method according to claim 1 to 5 with a cleaning and disinfection machine, characterized in that # the container with the following facility for the process of a fully automatic Program: spray nozzles for rinsing, possibly reinforced by compressed air pulses and for filling, dosing pump for a cleaning agent, transducers (Ultra.Cchall -S vibrationsgenerator) for the loosening of impurities by vibrations, electrical Elements and / or steam spirals for heating, with drainage, overflow, level switch, Contact thermometer. with automatically operated shut-offs for all supply and discharge lines as well as the operating system controlled automatically, for example by perforated edges. 7. Apparatus according to claim 6, characterized in that in the automatic operating system the actuation of push buttons can bring the program into the initial state, that part of the program can be accelerated by advancing to it the procedure can begin or end at any point in the program. 8. Apparatus according to claim 6 and 7, characterized in ~ L that the functions of disinfecting by heating and cleaning in the machine Ultrasonic vibrations are combined, the transducers for good transmission the vibrations affect the liquid almost over the entire base surface of the container take in. 9. Device according to one of the preceding claims, characterized in that this with the liquid supply at about half the height of the tub and at least below normal fluid level in order to run according to the program for the Drain and spray the contaminated surface fluid over without disturbance to drain and remove the overflow.