Suspension cleaning
US11453846B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2018 |
| Grant date | Sep 27, 2022 |
| Priority date | — |
| Expiry date | Dec 6, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of cleaning a contaminated surface, such as cleaning the elongate interior lumen of an endoscope contaminated with flesh, bone, blood, mucous, faeces or biofilm, said method comprising the steps of: providing a suspension of solid particles in a liquid to said contaminated surface, and flowing said suspension along said surface thereby to remove contaminant from the surface. The suspension is preferably a paste, where the solid material may be e.g. crystals of a salt, silicon oxide or organic material. The paste preferably has a solid fraction between 5 and 55%. A rheology modifier may be present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.