Patent · US Active

Suspension cleaning

US11453846B2 · kind B2 · utility

0Cited by
5References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 6, 2018
Grant dateSep 27, 2022
Priority date
Expiry dateDec 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.