{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9610026","patent":{"patent_number":"US-9610026","title":"Methods and apparatus for detecting heart failure event using rank of thoracic impedance","assignee":null,"inventors":[],"filing_date":"2014-08-21T00:00:00.000Z","publication_date":"2017-04-04T00:00:00.000Z","cpc_codes":["A61B","A61B","A61B","A61B","A61B","A61B","G16H","A61B","A61B"],"num_claims":20,"abstract":"Devices and methods for detecting physiological target event such as events indicative of HF decompensation status are described. An ambulatory medical device (AMD) can measure bio-impedance, such as thoracic impedance, from a patient. The AMD can receive a specified threshold within a range or a distribution of impedance measurement, or a specified percentile such as less than 50th percentile, and calculate a representative impedance value (ZRep) corresponding to the specified threshold or percentile using a plurality of thoracic impedance measurements. The representative impedance value can be calculated using an adaptation process, or using an estimated distribution of the impedance measurements. The AMD can include a physiologic event detector circuit that can generate a trend of representative impedance values over a specified time period, and to detect a target physiologic event such as indicative of HF decompensation using the trend of representative impedance values."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods and apparatus for detecting heart failure event using rank of thoracic impedance","description":"Devices and methods for detecting physiological target event such as events indicative of HF decompensation status are described. An ambulatory medical device (AMD) can measure bio-impedance, such as ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9610026","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-9610026","citation_suggestion":"Patentable. \"Methods and apparatus for detecting heart failure event using rank of thoracic impedance\" (US-9610026). https://patentable.app/patents/US-9610026","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9610026","json":"https://patentable.app/api/llm-context/US-9610026","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:19:49.631Z"}