Patent ID: 9402969
Filing Date: 2016-08-02
CPC Classification: A61M

Claim Text:
1. A sputum aspirating apparatus comprising: a housing; a suction line comprising: a clamp capable of switching between a first state and a second state, the first state making the suction inlet communicate with the container, the second state making the suction inlet shut off from the container, the clamp placed in proximity to the suction line and in the housing, the clamp being configured to open and to block the suction line; a pressure sensor configured to measure pressure inside the container for measuring an amount of an expired air being aspirated into the container based on changing of the pressure inside the container while in the first state, wherein the pressure sensor is placed in the housing; a flow-direction sensor for detecting a flow direction of gas inside the tracheal tube; and a CPU/MPU running software that is configured to perform switching the clamp from the second state to the first state during an expiration phase of the patient as indicated by the flow-direction sensor, and keeping the clamp in the first state when an amount of the expired air measured by the pressure sensor is less than a predetermined value, wherein the CPU/MPU running software is placed in the housing; wherein the suction tube has a connection part connected to the tracheal tube and a branching part placed outside the housing; wherein the suction line further comprises: wherein the flow-direction sensor comprises: