{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9750589","patent":{"patent_number":"US-9750589","title":"Plaque detection using a stream probe","assignee":null,"inventors":[],"filing_date":"2013-12-20T00:00:00.000Z","publication_date":"2017-09-05T00:00:00.000Z","cpc_codes":["A61B","A61B","A61B","A61B","A61B","A61B","A61B","A61B","G01N","A61B","A61B","A61B","A61B"],"num_claims":9,"abstract":"An apparatus is configured such that passage of a fluid through an open port of a distal probe tip enables detection of a substance that may be present on a surface, e.g., a surface of a tooth, based on measurement of a signal correlating to a substance at least partially obstructing the passage of fluid through the open port. The apparatus includes a proximal pump portion and at least one distal probe portion configured to be immersed in another fluid, e.g., water in toothpaste foam. A corresponding system includes one or two such apparatuses. A method of detecting the presence of a substance on a surface includes probing an interaction zone for at least partial obstruction of flow of the fluid through the distal probe tip. The distal probe tip may have a structural configuration for preventing blocking of the open port. The distal probe tip may also have a non-uniform wear profile. The at least one distal probe portion may include two or multiple components to improve performance and reliability."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Plaque detection using a stream probe","description":"An apparatus is configured such that passage of a fluid through an open port of a distal probe tip enables detection of a substance that may be present on a surface, e.g., a surface of a tooth, based ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9750589","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9750589","citation_suggestion":"Patentable. \"Plaque detection using a stream probe\" (US-9750589). https://patentable.app/patents/US-9750589","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9750589","json":"https://patentable.app/api/llm-context/US-9750589","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T13:17:42.919Z"}