Sleeping respiration signal acquiring device based on air bed

• Main Authors: YAO SHAOJIE, JIANG JIAJIA, DUAN FAJIE, WANG RENDA
• Format: Patent
• Language: English
• Published: 03.06.2015
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

The invention discloses a sleeping respiration signal acquiring device based on an air bed. The sleeping respiration signal acquiring device comprises the air bed, the air bed comprises a plurality of parallel air chambers, two of the spaced air chambers are measuring air chambers, and the rest are supporting air chambers. The measuring air chambers are connected with an input end of a piezoresistive pressure sensor through a connecting catheter respectively, a balance pipe is connected between the measuring air chambers, the piezoresistive pressure sensor is one of low-pressure sensors of NPC1210 series developed by GE company and is of Wheatstone bridge structure composed of four P-type resistors, semiconductor diaphragms are arranged in the P-type resistors, and the piezoresistive pressure sensor is connected with a constant-flow source power supply circuit. The sleeping respiration signal acquiring device constructs a stable and reliable signal acquiring platform, so that respiration signals of testers can accurately transmit to the sensor, and signal interference like body weight is excluded.