{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11510653","patent":{"patent_number":"US-11510653","title":"Secondary flow detection device, secondary flow detection program, and ultrasonic signal processing device","assignee":null,"inventors":[],"filing_date":"2020-01-14T00:00:00.000Z","publication_date":"2022-11-29T00:00:00.000Z","cpc_codes":["A61B","A61B","A61B","A61B","A61B","A61B","A61B","A61B","A61B","G01S","G01S","G01S","G01S","G09B","A61B","A61B","A61B"],"num_claims":17,"abstract":"To uniformly extract a secondary flow based on quantitative calculation even in a complicated blood flow in a heart chamber or a blood vessel. There is provided a secondary flow detection device, including: a degree-of-swirl map calculation unit that obtains a velocity vector map calculated based on an echo signal reflected by an inspection target, calculates, as a value indicating a degree of a spatial change of a velocity vector, a degree of swirl based on the velocity vector map, and calculates, as a degree-of-swirl map, a spatial distribution of an iso-degree-of-swirl line obtained by connecting the degree of swirl of an equal value; a secondary flow candidate extraction unit that extracts, as a secondary flow candidate, an iso-degree-of-swirl line satisfying a predetermined condition among the iso-degree-of-swirl line indicated in the degree-of-swirl map; a feature amount calculation unit that calculates a feature amount of the velocity vector inside the secondary flow candidate; a secondary flow determination unit that determines whether the secondary flow candidate is a desired secondary flow based on the feature amount; and a secondary flow extraction unit that extracts and outputs the secondary flow determined by the secondary flow determination unit."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Secondary flow detection device, secondary flow detection program, and ultrasonic signal processing device","description":"To uniformly extract a secondary flow based on quantitative calculation even in a complicated blood flow in a heart chamber or a blood vessel. There is provided a secondary flow detection device, incl","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11510653","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-11510653","citation_suggestion":"Patentable. \"Secondary flow detection device, secondary flow detection program, and ultrasonic signal processing device\" (US-11510653). https://patentable.app/patents/US-11510653","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11510653","json":"https://patentable.app/api/llm-context/US-11510653","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T21:45:46.459Z"}