VENOUS PRESSURE MEASUREMENT APPARATUS

• Main Authors: UGAWA SADAJI, MORIMOTO YOKA, ADACHI SHIRO, YOSHIDA TATSUO, TAKAYANAGI TSUNEO, NISHIHARA TATSUO, HYOGO MITSUJI
• Format: Patent
• Language: English
• Published: 25.10.2012
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

PROBLEM TO BE SOLVED: To provide a non-invasive venous pressure measurement apparatus for measuring venous pressure using simple instruments while a living body is under natural conditions.SOLUTION: The non-invasive venous pressure measurement apparatus includes: a first cuff 20a attachable to a first portion including a vein and an artery in a living body; a pressure control means 30a that changes first applied pressure applied by the first cuff to the first portion; a first pulse wave detection means 40a that detects a first pulse wave from the pressure received by the first cuff from the first portion; second pulse wave detection means 20b, 40b that detect a second pulse wave including at least an arterial pulse wave in a second portion different from the first portion of the living body; an analyzing means 50 that analyzes a correlation between the second pulse wave detected by the second pulse wave detection means and the first pulse wave detected by the first pulse wave detection means, which are changed as the first applied pressure is changed by the pressure control means; and a venous pressure calculation means 50 that calculates a venous pressure based on the first applied pressure and a result of analysis by the analyzing means.