JP2007075744A - Cleaning evaluation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cleaning evaluation device capable of coping with even changes involving modifications of the type and size of the to-be-cleaned material and those of operating conditions of the cleaning vessel. <P>SOLUTION: The device H, together with to-be-cleaned articles, is cleaned with a cleaning solution and evaluates the degree of removal of contaminants adhered to the articles. It has a cleaning indicator 20 applied with a false contaminant for evaluation of the degree of removal of contaminants, a holding member holding the contaminant-applied surface so as for the surface to come in contact with the cleaning solution, a plate-like material 10 which is arranged on the contaminant-applied surface of the cleaning indicator 20 and has two or more openings 10a for coming in of the cleaning solution arranged so as to control the amount of the cleaning solution coming in contact with the contaminant-applied surface of the indicator 20 held with the holding member, and a slide plate 14 arranged in a slidable way so as to adjust the opened area of the openings 10a of the plate-like material. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cleaning evaluation instrument, and more particularly, to a cleaning evaluation instrument that is cleaned with a cleaning liquid together with an object to be cleaned and evaluates the degree of dirt that has adhered to the object to be cleaned.

In hospitals and the like, medical devices such as scissors and tweezers are reused after being cleaned, sterilized, disinfected, and the like. In particular, in recent years, from the viewpoint of preventing nosocomial infections, the cleaning performed prior to sterilization and disinfection is regarded as important. For this reason, in medical devices that have been washed, it has been required to ensure that the attached proteins and the like have been sufficiently washed.
Conventionally, such a medical device is guaranteed to be washed based on, for example, a visual inspection result, or a medical device that has been cleaned is randomly extracted, and the extracted medical device is dyed and the residual soil is inspected.
However, such visual and dyeing inspections have problems such as the results being easy to vary and the inspection taking time.

On the other hand, in the following Non-Patent Document 1, a cleaning indicator coated with dirt is inserted as a cleaning evaluation instrument for cleaning the cleaning object together with the cleaning object and evaluating the degree of dirt removal attached to the cleaning object. It has been proposed to use a holder.
An example of such a cleaning evaluation instrument is shown in FIG. FIG. 13A is a front view of the cleaning evaluation instrument, and FIG. 13B is a longitudinal sectional view thereof.
The holder is made of stainless steel and includes an L-shaped main body 100 and an L-shaped inner portion 102 inside the main body 100, and the inner portion 102 is provided on one end side thereof. The spring member 104 is urged and connected in the direction of the main body 100.
A bent portion 102 a that is bent in a direction away from the main body portion 100 is formed in the vicinity of the spring member 104 and at one end portion of the inner portion 102. For this reason, when the bent portion 102 a is pressed toward the main body portion 100, the other end portion of the inner side portion 102 moves away from the main body portion 100 against the urging force of the spring material 104 and moves to the position 102 ′. A cleaning indicator 112 in which pseudo-stain is partially applied to both sides of the film can be inserted between the inner portion 102 and the inner portion 102.
Next, when the bending portion 102 a is released, the inner portion 102 returns to the direction of the main body portion 100, and the cleaning indicator 112 is gripped between the main body portion 100 and the inner portion 102.
A plurality of openings 106, 106... Are opened in portions of the main body portion 100 and the inner portion 102 corresponding to the portion where the dirt of the cleaning indicator 112 is applied.
Further, cover plates 110 and 110 are provided on the outer surface of the main body 100 so as to cover the openings 106, 106... Between the cover plates 110 and 110 and the outer surface of the main body 100. A predetermined gap is formed.
Medical Instrument Vol.75, No.4 (2005), p. 77

The cleaning evaluation instrument shown in FIG. 13 is cleaned together with the object to be cleaned used for surgery or the like. At that time, the cleaning liquid flowing in from the gap between the cover plates 110 and 110 and the outer surface of the main body 100 flows into the pseudo-stain application surface of the cleaning indicator 112 via the openings 106, 106. Wash.
In the cleaning evaluation instrument shown in FIG. 13, the inflow amount of the cleaning liquid to the pseudo dirt application surface of the cleaning indicator 112 is limited by the gap between the cover plates 110, 110 and the outer surface of the main body 100, and the cover plates 110, 110. Compared to the case where no is present, it is difficult to clean the pseudo-stain on the cleaning indicator 112. For this reason, after the cleaning is completed, the cleaning indicator 112 is taken out from the holder of the cleaning evaluation instrument, and when the pseudo-stain is sufficiently cleaned, it can be ensured that the object to be cleaned is sufficiently cleaned.
However, although the degree of cleaning of the object to be cleaned varies depending on the type and size of the object to be cleaned or the operating condition of the cleaning tank, the cleaning evaluation instrument shown in FIG. It has been found that it is difficult to cope with a change in the type and size of the object to be cleaned or the operating conditions of the cleaning tank.
Then, the subject of this invention is providing the washing | cleaning evaluation instrument which can respond also when the kind and magnitude | size of a to-be-washed object, the driving | running conditions of a washing tank, etc. are changed.

The present inventors considered that it was effective to be able to adjust the amount of the cleaning liquid in contact with the pseudo-stained surface of the cleaning indicator to solve the above problem.
As a result, a plate having a plurality of openings into which the cleaning liquid flows and an adjustment plate having a plurality of openings formed so as to be different from the opening positions of the openings formed in the plate-like body are provided. The present inventors have found that the amount of the cleaning liquid in contact with the dirt application surface of the cleaning indicator can be adjusted by laminating and mounting the dirt on the dirt application surface of the cleaning indicator.
That is, the present invention provides a cleaning evaluation instrument that is cleaned with a cleaning liquid together with an object to be cleaned and evaluates the degree of dirt that adheres to the object to be cleaned, wherein the pseudo dirt that evaluates the degree of dirt is at least one side of the carrier. A cleaning indicator that is applied to the side of the cleaning indicator, and a cleaning member that is disposed on the pseudo-stain application surface of the cleaning indicator and is held by the holding member. The cleaning evaluation instrument is provided with an adjusting means capable of increasing or decreasing the amount of the cleaning liquid in contact with the pseudo-stain application surface.

In the present invention, the adjusting means includes a plate-like body formed with a plurality of openings into which the cleaning liquid flows, and a slide provided so as to be slidable so that the opening area of each opening of the plate-like body can be adjusted. By comprising it from a board, the liquid quantity of the washing | cleaning liquid which contacts the pseudo-stain application | coating surface of a washing | cleaning indicator can be adjusted.
Alternatively, the adjusting means includes a plate-like body having a plurality of openings into which the cleaning liquid flows, and a plurality of openings different from the opening position or shape of the openings formed in the plate-like body. The amount of cleaning liquid in contact with the pseudo-stain coating surface of the cleaning indicator can also be reduced by arranging the plate-shaped body and the adjusting plate on the soil coating surface of the cleaning indicator. Can be adjusted.
In addition, by providing a stopper so that the cleaning evaluation instrument can be fixed to a predetermined portion of the cleaning tank on the holding member, the cleaning evaluation instrument can be installed at a position convenient for evaluating the degree of cleaning of the object to be cleaned.

In the cleaning evaluation instrument according to the present invention, the amount of the cleaning liquid contacting the pseudo-stain application surface of the cleaning indicator can be increased or decreased by the adjusting means.
For this reason, when the type and size of the object to be cleaned or the operating conditions of the cleaning tank are changed, the cleaning evaluation instrument according to the present invention adjusts the amount of cleaning liquid that comes into contact with the pseudo dirt application surface of the cleaning indicator by the adjusting means. it can.
As a result, even if the type and size of the cleaning object or the operating conditions of the cleaning tank are changed, the cleaning evaluation with high reliability can be performed by using the cleaning evaluation instrument according to the present invention.

An example of the cleaning evaluation instrument according to the present invention is shown in FIG. Fig.1 (a) is sectional drawing of the casing main-body part which comprises the washing | cleaning evaluation instrument, FIG.1 (b) is a front view of a casing main-body part. As shown in FIGS. 1 (a) and 1 (b), the casing body is folded at one end of a plate-like body 10 formed with a plurality of openings 10a, 10a,. A curved portion 10b is formed. An engagement pin 12a is provided at the tip of the bent portion 10b, and one end of the back plate 12 is engaged so that the back plate 12 can be rotated in the direction of the back side of the plate-like body 10. ing.
On the surface side of the plate-like body 10, there is provided a slide plate 14 in which openings 14a, 14a,... Having the same area as the openings 10a, 10a formed in the plate-like body 10 are formed. The slide plate 14 rotates a screw 18 spanned between a bent portion 10 c bent upward at the other end of the plate-like body 10 and a convex portion 16 protruding to the surface side of the slide plate 14. To slide.
Further, an engagement member 19 that engages with the other end of the back plate 12 is provided on the back side of the other end of the plate-like body 10 so as to fix the back plate 12 to the back side of the plate-like body 10. It has been. The engaging member 19 is provided with a roller at the tip, and engages with a protrusion 12b that protrudes to the back side of the other end of the back plate 12, as shown in FIG.

In the cleaning evaluation instrument using such a casing main body, the cleaning indicator 20 is sandwiched between the plate-like body 10 and the back plate 12 like the cleaning evaluation instrument H shown in FIG. The cleaning indicator 20 is coated with pseudo dirt 20b only on one side of the film 20a as a carrier. As the pseudo-stain 20, a body fluid such as blood or lymph, or an artificial soil such as a test soil shown in prENISO15883 can be used.
In the cleaning indicator 20 shown in FIG. 1, the pseudo dirt 20b is applied to the entire surface on one side of the film 20a, but the pseudo dirt 20b may be applied to both surfaces of the film 20a. Alternatively, when the cleaning indicator 20 is sandwiched between the plate-like body 10 and the back plate 12, the one surface of the film 20 a is arranged so that the pseudo-stain 20 b coincides with each of the openings 10 a formed in the plate-like body 10. The pseudo dirt 20b may be applied to a predetermined position on the side.
Moreover, it can replace with the film 20a and can use a stainless plate as a support | carrier which carry | supports the pseudo dirt 20b.
The hooks 22 provided on the back side of the back plate 12 shown in FIGS. 1A and 1C are for fixing the cleaning evaluation instrument H to a cleaning basket or the like.

In the cleaning evaluation instrument H shown in FIGS. 1A to 1C, when the screw 18 is rotated in a predetermined direction, the slide plate 14 slides as shown in FIGS. The opening area of the opening 10a of the plate-like body 10 is reduced by the opening edge of the opening 14a.
Therefore, when the cleaning evaluation instrument shown in FIGS. 1 (a) and 1 (b) is cleaned together with the object to be cleaned, the openings 14a, 14a,... Of the slide plate 14 and the openings 10a, The amount of the cleaning liquid that passes through 10b... And reaches the pseudo-stain 20b of the cleaning indicator 20 matches the opening 14a of the slide plate 14 and the opening 10a of the plate-like body 10 shown in FIG. Compared to the case, the amount can be suppressed, and the degree of cleaning of the pseudo dirt of the pseudo dirt 20b can be adjusted.
Accordingly, in the cleaning evaluation instrument H shown in FIGS. 1 and 2, even if the type and size of the object to be cleaned or the operating conditions of the cleaning tank are changed, the screw 18 is rotated and the slide plate 14 is slid, By adjusting the opening area of the opening 10a of the body 10, it is possible to adjust the degree of cleaning of the pseudo-stain 20b of the cleaning indicator 20, and easily correspond to the degree of cleaning of the object to be cleaned.

In the cleaning evaluation instrument H shown in FIGS. 1 and 2, the movable member is provided. However, even when the cleaning evaluation instrument H that does not include the movable member is changed in type, size, etc., of the cleaning indicator 20 It is possible to adjust the amount of the cleaning liquid that reaches the pseudo dirt 20b. Examples thereof are shown in FIGS.
FIG. 3 includes a front view of the casing main body constituting the cleaning evaluation instrument H [FIG. 3 (a)], a cross-sectional view taken along plane AA shown in FIG. 3 (a) [FIG. 3 (b)], and FIG. The longitudinal cross-sectional view [FIG.3 (c)] in the BB surface shown to 3 (a) is each shown.
In the casing main body shown in FIG. 3, a back plate 32 is provided on the back side of the rectangular plate-like body 30 in which square openings 30a, 30a are formed, and spacers 34, 34, It is screwed through 34. Therefore, an insertion port 40 is formed on one end side of the rectangular plate 30 and the back plate 32.
Holding springs 36, 36, 36 for holding the cleaning indicator inserted from the insertion port 40 are provided on the plate body 30 side of the back plate 32 of the casing body.
On the back surface of the back plate 32, hooks 38, 38, 38 for fixing the cleaning evaluation instrument H to a cleaning basket or the like are provided.

As the cleaning indicator used for the casing body shown in FIG. 3, the cleaning indicator 42 shown in FIG. 4 can be used. The cleaning indicator 42 is coated with pseudo dirt on one side of the film 42a to form rectangular pseudo dirt 42b and 42b. These rectangular pseudo-stains 42b and 42b correspond to the openings 30a and 30a opened in the plate-like body 30 of the casing body.
In order to adjust the amount of cleaning liquid that contacts each of the pseudo dirts 40b and 40b of the cleaning indicator 42 shown in FIG. 4, as shown in FIG. 5A, the adjustment plates 44 and 44 are placed on the pseudo dirt 40b of the cleaning indicator 42. And the adjustment plates 44, 44 are inserted from the insertion port 40 of the casing body so that the adjustment plates 44, 44 are located on the side of the openings 30a, 30a opened in the plate-like body 30 of the casing body.
As shown in FIG. 5B, the cleaning indicator 42 and the adjustment plates 44, 44 inserted into the casing main body are pressed against and held by the back side of the plate-like body 30 by the holding spring 36, and the cleaning evaluation instrument H Configure.

As the adjustment plates 44 and 44 shown in FIG. 5, for example, the adjustment plate shown in FIG. 6 can be used. In the adjustment plate 44a shown in FIG. 6 (a), a plurality of square-shaped through holes are formed in a lattice pattern on the plate. In contrast to the adjustment plate 44a shown in FIG. 6A, in the adjustment plate shown in FIGS. 6B and 6C, a plurality of through-holes formed in the plate are arranged in a staggered manner. The adjustment plate 44b of b) and the adjustment plate 44c of FIG. 6C have different staggered patterns.
In addition, in the adjustment plate 44d shown in FIG. 6D, a plurality of slit-shaped through holes are formed in a lattice pattern on the plate. In contrast to the adjustment plate 44d shown in FIG. 6 (d), the adjustment plate shown in FIGS. 6 (e) and (f) has fewer slit-like through holes formed in the plate and a wider gap between the through holes. Has been. The adjustment plate 44f of FIG. 6 (f) has fewer slit-like through holes formed in the plate and a wider gap between the through holes than the adjustment plate 44e of FIG. 6 (e). ing.
Among the adjustment plates 44 shown in FIG. 6, two adjustment plates 44 and 44 having different through hole patterns and through hole arrangements are stacked on the pseudo dirt 40 b of the cleaning indicator 42, An adjusting means for adjusting the amount of the cleaning liquid in contact with the pseudo-stained surface was used.
In FIG. 5, the two adjustment plates 44, 44 are stacked on the pseudo dirt 40b of the cleaning indicator 42. However, the adjustment plate 44 may be one in relation to the adjustment of the cleaning liquid amount. Three or more sheets may be laminated.

As the cleaning evaluation instrument H, the cleaning evaluation instrument H shown in FIG. 7A can be used. The cleaning evaluation instrument H shown in FIG. 7A has a baffle plate 50 on an engagement pin 52a whose one end is supported by a support portion 52 erected on one side of the support plate 46 on which the cleaning indicator 48 is placed. One end side of the baffle plate 50 is rotatably mounted, and the other end side of the baffle plate 50 is supported by a screw 54 erected on one surface side of the support plate 46.
In the cleaning evaluation instrument H shown in FIG. 7A, as shown in FIG. 7B, by rotating the screw 54, the inclination of the baffle plate 50 is adjusted and the support plate 46 on the screw 54 side is adjusted. By changing the opening width of the baffle plate 50, it is possible to adjust the amount of the cleaning liquid that comes into contact with the pseudo dirt of the cleaning indicator 48.
Further, as the cleaning evaluation instrument H, as shown in FIG. 8A, the baffle plate 50 is supported by a pair of screws 56, 56 erected on one surface side of the support plate 46 on which the cleaning indicator 48 is placed. The cleaning evaluation instrument H can be used. In the cleaning evaluation instrument H shown in FIG. 8A, the gap between the support plate 46 and the baffle plate 50 is changed by rotating the screws 56 as shown in FIG. 8B. It is possible to adjust the amount of the cleaning liquid that comes into contact with the pseudo dirt on the cleaning indicator 48.

The cleaning evaluation instrument H shown in FIGS. 1 to 8 is of a type in which the cleaning liquid comes into contact with one side of the cleaning indicator, but the cleaning evaluation instrument uses a cleaning indicator in which pseudo dirt is applied to both sides of the film. As the H casing body, the one shown in FIG. 9 can be used.
The casing body shown in FIG. 9 is an improvement of the casing body shown in FIG. 3, and the same members as those constituting the casing body shown in FIG. 3 are the same as the members shown in FIG. A number is attached and detailed explanation is omitted.
9 (a) and 9 (b), the back plate 32 also has a square opening so as to correspond to the square openings 30a and 30a formed in the plate 30 on the back plate 32. Portions 32a and 32a are formed.
In the casing main body shown in FIG. 9, as shown in FIG. 10, a cleaning indicator 58 in which pseudo dirt is applied on both sides of the film is laminated so as to be sandwiched between adjustment plates 44 and 44 shown in FIG. The cleaning evaluation instrument H is configured by being inserted through the insertion port 40 of the casing body.
The adjustment plates 44 and 44 are arranged one on each side of the cleaning indicator 58, but two or more adjustment plates 44 may be stacked on one side of the cleaning indicator 58.

As shown in FIG. 11, the cleaning evaluation instrument H shown in FIGS. 1 to 10 is fixed to a cleaning basket 60 into which an object to be cleaned is inserted by a hook provided in the casing body. FIG. 11A shows a state in which the cleaning basket 60 is fixed to the center, and FIG. 11B shows a state in which the cleaning basket 60 is fixed to the corner.
In this way, since the cleaning evaluation instrument H is provided with a hook that can be fixed to the cleaning basket 60, the cleaning evaluation instrument H can be fixed to an arbitrary portion of the cleaning basket 60.
About the fixed location of this washing | cleaning evaluation instrument H, it is preferable to experimentally investigate and determine beforehand the location which can perform the washing | cleaning evaluation of a to-be-washed object appropriately.

The cleaning basket 60 in which the object to be cleaned shown in FIG. 11 is inserted is set in the cleaning apparatus and used for cleaning. An example is shown in FIG. The cleaning apparatus shown in FIG. 12 is a jet-type cleaning apparatus, in which a plurality of racks 64, 64... Are provided in a cleaning tank 62, and a rotating nozzle that injects cleaning liquid above each rack 64. 66 is provided.
A cleaning basket 60 to which the cleaning evaluation instrument H is fixed is placed on each rack 64.
The cleaning apparatus shown in FIG. 12A is an example in which the cleaning evaluation instrument H mounted on the cleaning basket 60 is mounted so as to be positioned on the inner wall surface side of the cleaning tank 62, and is shown in FIG. The cleaning apparatus is an example in which the cleaning evaluation tool H mounted on the cleaning basket 60 is mounted so as to be positioned on the center side of the cleaning tank 62. It is preferable to determine in advance which position in the cleaning tank 62 of the cleaning evaluation instrument H is suitable for the cleaning evaluation of the object to be cleaned.
1 to 8 described above is provided in place of the cover plates 110 and 110 shown in FIG. 13 by using the cleaning evaluation instrument shown in FIG. Even if the type or size of the cleaning tank or the operation condition of the cleaning tank is changed, a reliable cleaning guarantee can be performed.

It is sectional drawing and front view for demonstrating an example of the washing | cleaning evaluation apparatus which concerns on this invention, and its casing main-body part. It is the front view and sectional drawing for demonstrating the adjustment means provided in the washing | cleaning evaluation apparatus shown in FIG. It is sectional drawing and the front view for demonstrating the other example of the casing main-body part which comprises the washing | cleaning evaluation apparatus which concerns on this invention. It is a front view explaining the washing | cleaning indicator used for the casing main-body part shown in FIG. It is an end view explaining the cleaning evaluation instrument explaining the cleaning evaluation apparatus using the holder main body shown in FIG. 3 and the cleaning indicator shown in FIG. It is a front view explaining the adjustment plate as an adjustment means used for the washing | cleaning indicator shown in FIG. It is sectional drawing explaining the other example of the washing | cleaning evaluation apparatus based on this invention. It is sectional drawing explaining the other example of the washing | cleaning evaluation instrument based on this invention. It is sectional drawing explaining the other example of the casing main-body part which comprises the washing | cleaning evaluation instrument based on this invention. It is sectional drawing explaining the washing | cleaning evaluation instrument using the casing main-body part shown in FIG. It is a perspective view explaining the washing basket which fixed the washing evaluation instrument concerning the present invention. It is the schematic explaining the washing | cleaning apparatus with which the washing basket which fixed the washing | cleaning evaluation instrument based on this invention was set. It is explanatory drawing explaining the conventional washing | cleaning evaluation instrument.

Explanation of symbols

10, 30 Plate-like body 10a, 14a, 30a Opening 12, 32 Back plate 14 Slide plate 18 Screw 20, 42, 48, 58 Cleaning indicator 36 Holding spring 40 Insertion port 44 Adjustment plate 46 Support plate 50 Baffle plate 52a Engagement Pin 52 Support part 54, 56 Screw H Cleaning evaluation instrument

Claims (4)

In the cleaning evaluation instrument which is cleaned with the cleaning object together with the object to be cleaned and evaluates the degree of dirt removal attached to the object to be cleaned,
A holding member for holding a cleaning indicator on which at least one surface of the carrier is coated with pseudo dirt for evaluating the degree of dirt removal so that the pseudo dirt applying surface can come into contact with the cleaning liquid;
The cleaning evaluation is characterized in that there is provided an adjusting means which is arranged on the dirt application surface of the cleaning indicator and can adjust the amount of the cleaning liquid which comes into contact with the pseudo dirt application surface of the cleaning indicator held by the holding member. Instruments.   The adjusting means includes a plate-like body formed with a plurality of openings into which the cleaning liquid flows, and a slide plate provided so as to be slidable so that the opening area of each opening of the plate-like body can be adjusted. The cleaning evaluation instrument according to claim 1.   The adjusting means includes a plate-like body having a plurality of openings into which the cleaning liquid flows, and an adjustment in which a plurality of openings different from the opening position or shape of the openings formed in the plate-like body are formed. The cleaning evaluation instrument according to claim 1, wherein the cleaning evaluation instrument is configured by being laminated on the dirt application surface of the cleaning indicator.   The cleaning evaluation instrument according to any one of claims 1 to 3, wherein the holding member is provided with a stopper so that the cleaning evaluation instrument can be fixed to a predetermined portion of the cleaning tank.

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