INSPECTION EQUIPMENT

• Main Authors: SAKAI KAZUYASU, KUROSAWA SHINYA, KOBAYASHI MITSUYUKI, OSAKI RIE
• Format: Patent
• Language: English; Japanese
• Published: 17.05.2018
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

PROBLEM TO BE SOLVED: To improve reliability of a pleural pressure measurement result for an irregularity of a blood flow which is not caused by a body motion, such as strain, stress, and a low temperature environment.SOLUTION: A pulse wave signal acquisition part 11 acquires a pulse wave signal of a subject. A respiratory signal acquisition part 12 acquires a respiratory signal of the subject at the same time as the pulse wave signal. A pulse wave analysis part 13 analyzes the pulse wave signal and estimates a pleural pressure signal indicating a time-series waveform of the pleural pressure. A reliability determination part 16 determines reliability of a pleural pressure estimation result by determining the similarity between the pleural pressure signal and the respiratory signal. Respiratory function inspection equipment 5 distinguishes the handling on the output of the pleural pressure estimation result according to the determined reliability.SELECTED DRAWING: Figure 1 【課題】緊張やストレス、冷温環境等の体動に因らない血流の乱れに対して、胸腔内圧の測定結果の信頼性を向上させる。【解決手段】脈波信号取得部１１は、被験者の脈波信号を取得する。呼吸信号取得部１２は、脈波信号と同時期における被験者の呼吸信号を取得する。脈波解析部１３は、脈波信号を解析して胸腔内圧の時系列波形を表す胸腔内圧信号を推定する。信頼性判定部１６は、胸腔内圧信号と呼吸信号との類似性を判断することにより、胸腔内圧の推定結果の信頼性を判定する。呼吸機能検査装置５は、判定された信頼性に応じて、胸腔内圧の推定結果の出力に関する扱いを区別する。【選択図】 図１