Patent ID: 11918740
Assignee: HOSPITECH RESPIRATION LTD.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 19:
20. A system for controlling and monitoring flow in a cuffed endotracheal tube device, comprising:
a connector panel having at least three connectors adapted for establishing fluid communication with proximal ends of at least a first fluid line, a second fluid line and a cuff inflation line of a cuffed endotracheal tube device;
a processing unit configured to instruct a control unit to execute operations including at least a rinsing procedure, a suctioning procedure, a cuff inflation procedure, a leak detection procedure and a venting procedure;
wherein said control unit comprises a cuff inflation and deflation module configured to measure a cuff pressure within said cuff inflation line, to identify cuff pressure variations, and to control said pressure responsively to said identified variations in closed loop control, wherein when amplitude of said variation is above a predetermined pressure threshold for a time period which is above a predetermined time threshold, said control unit instructs said cuff inflation and deflation module to reduce said cuff pressure;
wherein said control unit is configured to maintain a generally constant cuff pressure, when variations are below predetermined value, and to cease said maintenance of said generally constant cuff pressure for a predetermined time-interval; and
wherein said processing unit is configured to analyze variations in cuff pressure within said cuff inflation line during said predetermined time-interval and to calculate, based on said analysis, at least one quantity selected from the group consisting of: tracheal pressure, breathing frequency, blood pulse wave frequency, obstruction level of a main lumen of said endotracheal tube device and resistance of said main lumen to flow.