Monitoring Cleaning of Surfaces

• US 20090261270A1
• Filed: 06/12/2009
• Published: 10/22/2009
• Est. Priority Date: 03/30/2005
• Status: Active Grant

• Current Assignee: Kleancheck Systems LLC
• Original Assignee: Kleancheck Systems LLC
• Inventors: Carling, Philip C.
• Granted Patent: US 7,785,109 B2
• Time in Patent Office: Days
• US Class Current: 250/459.100
• CPC Class Codes: A61B 2090/702 Devices for testing the cleaning process, e.g. test soils
• CPC Class Codes: A61L 2/18 Liquid substances or solutions comprising solids or dissolved gases
• CPC Class Codes: A61L 2/28 Devices for testing the effectiveness or completeness of sterilisation, e.g. indicators which change colour apparatus involving enzymes or microorganisms C12M1/34; methods involving enzymes or microorganisms C12Q1/00
• CPC Class Codes: A61L 2202/14 Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
• CPC Class Codes: B08B 13/00 Accessories or details of general applicability for machines or apparatus for cleaning
• CPC Class Codes: B08B 3/00 Cleaning by methods involving the use or presence of liquid or steam B08B9/00 takes precedence
• CPC Class Codes: C11D 11/0005 Special cleaning or washing methods
• CPC Class Codes: C11D 2111/40 Specific cleaning or washing processes
• CPC Class Codes: C11D 3/40 Dyes ; Pigments
• CPC Class Codes: C11D 3/42 Brightening agents ; Blueing agents
• CPC Class Codes: G01N 21/6447 by visual observation
• CPC Class Codes: G01N 2201/061 Sources
• CPC Class Codes: G06Q 10/06393 Score-carding, benchmarking or key performance indicator [KPI] analysis
• CPC Class Codes: G09B 19/00 Teaching not covered by other main groups of this subclass teaching or practice apparatus for gun-aiming or gun-laying F41G3/26
• CPC Class Codes: Y10S 435/842 Clostridium
• CPC Class Codes: Y10S 435/882 Staphylococcus
• CPC Class Codes: Y10S 435/883 Staphylococcus aureus
• CPC Class Codes: Y10S 435/967 Standards, controls, materials, e.g. validation studies, buffer systems

Abstract

A method for monitoring cleaning of a surface includes applying an amount of transparent indicator material to an area of a surface and measuring the amount of transparent indicator material remaining on the surface. The transparent indicator material may be fixed on the surface by drying and, when a fluorescent material, may be measured through exposure to ultraviolet radiation.

Claims

1. A method for improving cleaning of an environment comprising:

(i) applying a transparent marker to one or more target sites located on one or more surfaces within an environment, the transparent marker capable of being viewed when exposed to ultraviolet radiation;

(ii) determining if the transparent marker remains on the one or more target sites after one or more opportunities to clean the one or more surfaces by one or more environmental services staff members;

(iii) establishing a quantitative baseline level of cleanliness for the one or more surfaces within the environment, the quantitative baseline level of cleanliness being based, at least in part, upon steps (i) and (ii);

(iv) instructing the one or more environmental services staff members on cleanliness issues; and

(v) evaluating whether the cleanliness of the environment has improved after instructing the one or more environmental services staff members by repeating steps (i) and (ii) to establish a post-instruction level of cleanliness and comparing the post-instruction level of cleanliness to the quantitative baseline level of cleanliness.

2. A method according to claim 1, wherein the one or more surfaces are high touch objects.

3. A method according to claim 1, wherein cleanliness issues include at least one selected from the group consisting of improved cleaning techniques, results of the quantitative baseline of cleanliness, locations of areas to be cleaned, and information relating to the transmission of pathogens.

4. A method according to claim 1, wherein the one or more surfaces within the environment are located in a single room.

5. A method according to claim 1, wherein the one or more surfaces within the environment are located in a plurality of rooms.

6. A method according to claim 1, further comprising:

determining a percentage of cleaned surfaces based at least in part upon whether the transparent marker visibly remains, when exposed to UV radiation, on each of the one or more surfaces after being cleaned by one or more environmental services staff.

7. A method according to claim 1, further comprising categorizing the one or more surfaces as cleaned or not cleaned after the one or more opportunities to clean the one or more surfaces, wherein a surface is categorized as clean if the transparent marker is removed or disturbed.

8. The method according to claim 1, wherein a source of the ultraviolet radiation is a handheld device.

9. The method according to claim 8, wherein the handheld device is a black light.

10. The method according to claim 9, wherein the handheld device is a directional UV flashlight.

11. The method according to claim 1, wherein the quantitative baseline level of cleanliness and the post-instruction level of cleanliness are indications of the presence of pathogens on the one or more surfaces.

12. The method according to claim 11, wherein the pathogens include at least one selected from the group consisting of MRSA, C. difficile, and VRE.

13. The method according to claim 1, wherein the transparent marker resists dry abrasion.

14. The method according to claim 1, further comprising:

performing continuous monitoring of the cleanliness of the environment by periodically repeating steps (i) and (ii) and establishing an updated level of cleanliness.

15. The method according to claim 14 further comprising:

re-instructing the one or more environmental services staff members on cleanliness issues and the updated level of cleanliness.

16. The method according to claim 1, wherein step (i) is performed prior to terminal cleaning of the environment and steps (ii)-(v) are performed after one or more terminal cleanings.

17. The method according to claim 1, further comprising:

generating a list of the one or more target sites, the list including the location of the one ore more target sites and when the transparent marker was applied to the one or more target sites.

18. The method according to claim 17, wherein determining if the transparent marker remains on the one or more target sites includes using the list to determine the locations of the one or more target sites.

19. A method according to claim 1 wherein the transparent marker resists dry abrasion.

20. A method according to claim 1, wherein the transparent marker, once applied, may only be removed using at least one of water and cleaning supplies.

21. A method for improving cleaning procedures comprising:

(i) applying an amount of transparent indicator material to one or more target sites located on one or more environmental surfaces within a first institution;

(ii) determining if any of the transparent indicator material remains on the one or more target sites after one or more opportunities to clean the one or more environmental surfaces by one or more environmental services staff members;

(iii) determining a pre-intervention level of cleanliness in the first institution, the pre-intervention level of cleanliness being a baseline and based, at least in part, upon whether transparent indicator material visibly remains, when exposed to ultraviolet radiation, on the one or more target sites;

(iv) altering existing cleaning procedures to enhance the first institution'"'"'s cleaning and disinfecting program;

(v) determining a post-intervention level of cleanliness in the environment of the first institution by repeating steps (i) and (ii);

(vi) comparing the pre-intervention level of cleanliness to the post-intervention level of cleanliness to determine a change in cleanliness; and

(vii) providing feedback regarding the change in cleanliness to the one or more environmental services staff members.

22. A method according to claim 21, further comprising comparing the pre-intervention and post-intervention levels of cleanliness with levels of cleanliness of a second institution.

23. A method according to claim 21, wherein determining the pre-intervention level of cleanliness includes collecting pre-intervention data and comparing the pre-intervention data to data collected from other units within the first institution.

24. A method according to claim 21, wherein altering existing cleaning procedures includes providing training to institutional administration and the one or more environmental services staff members.

25. A method according to claim 24, wherein training of institutional administration and the one or more environmental services staff members includes presenting the pre-intervention level of cleanliness.

26. A method according to claim 21 further comprising periodically re-evaluating the cleanliness of the first institution.

27. A method according to claim 21, wherein the transparent indicator material is resistant to dry abrasion.

28. The method according to claim 21, wherein step (i) is performed prior to terminal cleaning of the environment.

29. The method according to claim 21, further comprising:

generating a list of the one or more target sites, the list including the location of the one ore more target sites and when the transparent marker was applied to the one or more target sites.

30. The method according to claim 29, wherein determining if the transparent marker remains on the one or more target sites includes using the list to determine the locations of the one or more target sites.

31. The method according to claim 21, wherein a source of the ultraviolet radiation is a directional UV flashlight.

32. A method according to claim 21, wherein the transparent indicator material, once applied, may only be removed using at least one of water and cleaning supplies.

33. A method for inspecting the cleanliness of an environment and training environmental services staff comprising:

pre-marking a plurality of high touch surfaces within an environment using an invisible indicator;

providing an opportunity for environmental services staff to clean the environment;

examining the pre-marked high touch surfaces using a source of ultraviolet radiation to determine whether the invisible indicator remains on the high touch surface after providing the opportunity for environmental services staff to clean the environment;

identifying high touch surfaces that require additional cleaning based at least in part on whether the invisible indicator remains on the high touch surface; and

providing training to the environmental services staff regarding cleaning of the environment.

34. A method according to claim 33, wherein providing training to the environmental services staff includes informing the environmental services staff about non-cleaned high touch surfaces.

35. A method according to claim 33, wherein the environmental services staff is unaware of the pre-marking of the plurality of high touch services.

36. A method according to claim 33, further comprising:

confirming that the plurality of high touch surfaces are sufficiently pre-marked prior to providing the opportunity to clean the environment.

37. A method according to claim 36, wherein confirming that the plurality of high touch surfaces are sufficiently pre-marked includes illuminating the pre-marked surface with a UV light.

38. A method according to claim 33, further comprising training the environmental services staff on proper cleaning techniques prior to pre-marking the surfaces.

39. A method according to claim 38, wherein providing training to the environmental services staff includes re-training on proper cleaning techniques.

40. A method according to claim 33, wherein the invisible indicator resists dry abrasion.

41. A method according to claim 33, wherein the invisible indicator may only be removed using at least one of water and cleaning supplies.

42. A method for controlling transmission of nosocomial pathogens within an environment of a facility comprising:

implementing a baseline environmental evaluation system to provide a pre-intervention level of cleanliness within the environment, the pre-intervention level of cleanliness being determined by applying an amount of transparent indicator material to one or more target sites located on one or more surfaces within an environment and determining if any of the transparent indicator material remains on the one or more target sites after one or more opportunities to clean the one or more surfaces by one or more environmental services staff members;

implementing a program enhancement system, the program enhancement system including training at least one of facility administration and the one or more environmental services staff members on the baseline level of cleanliness within the environment, and providing a post-intervention level of cleanliness; and

implementing a program comparison system, the program comparison system comparing the pre-intervention level of cleanliness with the post-intervention level of cleanliness.

43. A method according to claim 42, wherein implementing the program comparison system further includes re-evaluating the post-intervention level of cleanliness on an ongoing basis.

44. A method according to claim 42, wherein implementing the program comparison system further includes comparing the pre-intervention level of cleanliness and the post-intervention level of cleanliness of the environment within the facility with other facilities.

45. A method according to claim 42, wherein implementing the baseline environmental system includes determining site specific demographic data and pre-intervention data.

46. A method according to claim 42, wherein implementing the program enhancement system includes providing at least one of facility administration and the one or more environmental services staff members with feedback on the results of the training.

47. A method according to claim 42, wherein the post-intervention level of cleanliness is determined by applying a second amount of transparent indicator material to the one or more target sites located on the one or more surfaces within the environment and determining if any of the second amount of transparent indicator material remains on the one or more target site after a second one or more opportunities to clean the one or more surfaces by the one or more environmental services staff members.

48. A method according to claim 42, wherein the transparent indicator material resists dry abrasion.

49. A method according to claim 42, wherein the transparent indicator material, once applied, may only be removed using at least one of water and cleaning supplies.