{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9616249","patent":{"patent_number":"US-9616249","title":"Radiotherapy control apparatus and radiotherapy control program","assignee":null,"inventors":[],"filing_date":"2013-02-26T00:00:00.000Z","publication_date":"2017-04-11T00:00:00.000Z","cpc_codes":["A61N","A61B","A61B","A61B","A61N","A61N","G16H","A61B","A61N","A61N"],"num_claims":10,"abstract":"A radiotherapy control apparatus includes a fluoroscopic image acquisition unit to acquire fluoroscopic images of markers in a patient from a single fluoroscopic imaging device, a projection line calculation unit to identify projected positions of the markers on the fluoroscopic image and calculate equations of projection lines linking these projected positions and a focus position of the imaging device, an inter-marker distance acquisition unit to acquire a distance between each pair of the markers, a marker position calculation unit to calculate current positions of the markers based on the equations and the distances, and a therapeutic radiation emission determination unit to determine whether to emit therapeutic radiation based on the current positions of the markers."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Radiotherapy control apparatus and radiotherapy control program","description":"A radiotherapy control apparatus includes a fluoroscopic image acquisition unit to acquire fluoroscopic images of markers in a patient from a single fluoroscopic imaging device, a projection line calc","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9616249","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-9616249","citation_suggestion":"Patentable. \"Radiotherapy control apparatus and radiotherapy control program\" (US-9616249). https://patentable.app/patents/US-9616249","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9616249","json":"https://patentable.app/api/llm-context/US-9616249","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T13:15:44.304Z"}