Patent ID: 9662433
Date: 2017-05-30
CPC Classifications: A61M,F04B,G01L

Claim:
1. A pressure detection comprising: a displacement detection device that detects radial displacement of a peristaltically-actuated tube; wherein the pressure detection device is in communication with a liquid flow route that comprises: a peristaltically-actuated tube, and a flexible tube with a portion that is connected to the peristaltically actuated tube so that the displacement detection device detects a pressure of the liquid flow route; wherein the peristaltically-actuated tube is compressed in a radial direction so that an internal liquid flows in a longitudinal direction by a peristaltic unit of a peristaltic pump and circulates a liquid; wherein the peristaltic pump includes a gripping device which grips the peristaltically-actuated tube attached to the peristaltic pump, wherein the gripping device includes an oscillation axis and a gripping piece which is oscillatable around the oscillation axis; and wherein the displacement detection device detects radial displacement of a portion of the peristaltically-actuated tube gripped by the gripping device.