{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8465435","patent":{"patent_number":"US-8465435","title":"Method, a system and a computer program product for determining a beat-to-beat stroke volume and/or a cardiac output","assignee":null,"inventors":[],"filing_date":"2007-07-20T00:00:00.000Z","publication_date":"2013-06-18T00:00:00.000Z","cpc_codes":["A61B","A61B","A61B","G16H","A61B","A61B","A61B"],"num_claims":10,"abstract":"The invention relates to a method 10 for determining a beat-to-beat stroke volume 9a and/or a cardiac output 9b based on a measurement 2 of suitable arterial pressure data. At the step 4 a waveform of the arterial pressure pulse is assessed based on data obtained during the measurement of step 2. At step 6 a compliance or impedance in dependence of at least one measurement of arterial pressure data is computed using a non-linear model 7. The non-linear model may comprise an arctangent model. The arctangent model may be differentiated numerically or analytically to obtain the compliance or the impedance of an aortic portion. The thus obtained compliance or impedance may then be substituted into a linear model 8. The linear model 8 may comprise a Windkessel model 8a, or a Waterhammer model 8b or any other suitable linear pulse contour model 8c. As a result, the beat-to-beat stroke volume 9a and/or cardiac output 9b are computed."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method, a system and a computer program product for determining a beat-to-beat stroke volume and/or a cardiac output","description":"The invention relates to a method 10 for determining a beat-to-beat stroke volume 9a and/or a cardiac output 9b based on a measurement 2 of suitable arterial pressure data. At the step 4 a waveform of","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8465435","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-8465435","citation_suggestion":"Patentable. \"Method, a system and a computer program product for determining a beat-to-beat stroke volume and/or a cardiac output\" (US-8465435). https://patentable.app/patents/US-8465435","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8465435","json":"https://patentable.app/api/llm-context/US-8465435","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T01:53:46.806Z"}