Patent ID: 11911145
Assignee: PULMONX CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A method of determining collateral ventilation in a patient, the method compromising:
introducing a diagnostic catheter into a lung compartment via an assisted ventilation system, wherein the diagnostic catheter comprises a distal end comprising an occluding member and a proximal end configured to be attached to a console;
inflating the occluding member to isolate the lung compartment; and
performing a diagnostic procedure with the diagnostic catheter while the patient is ventilated via the assisted ventilation system, wherein data generated from the diagnostic procedure are displayed on the console;
wherein the diagnostic procedure comprises determining an exhaled volume from the isolated lung compartment over a predetermined period of time while the patient is ventilated via the assisted ventilation system and determining that collateral ventilation is present in the isolated lung compartment if the exhaled volume from the isolated lung compartment over the predetermined period of time plateaus above a threshold value and remains substantially flat for a respective flow trend.