PURPOSE: An occlusion detection sensor is provided to reduce power consumption by automatically generating voltage if variation of pressure is occurred without the need of an external power supply.CONSTITUTION: An occlusion detection sensor includes a piezoelectric sensor unit measuring pressure of a tube, a tube installation unit(6) in which the tube is mounted, an occlusion sensor capable of detecting variation of pressure detected in the tube, a voltage amplification circuit amplifying voltage from a piezoelectric sensor(5) of the piezoelectric device unit and a tube fixing unit(17) for minimizing effect of movement from the outside of the tube installation unit.COPYRIGHT KIPO 2013[Reference numerals] (AA) Before mounting an IV set (BB) After amounting the IV set본 발명은 약물주입장치(Infusion pump)(16)에 있어서, 수액세트 튜브(14)가 막힌 것을 감지하는 막힘감지센서(occlusion sensor)(13)에 관한 것으로, 수액세트(IV set)(9)를 이용하여 약물 주입시 수액세트 튜브(14)가 꺾이거나 수액세트(9)가 잠겼을 경우, 그리고 수액의 응고가 되는 등으로 약물(7)을 구동부(actuator)(11)에서 밀어주어도 약물(7) 투입이 되지 않는 막힘상태를 감지하는 막힘감지센서(occlusion sensor)(13)관한 것이다.
