Methods and systems for determining collateral ventilation
AssigneePulmonx Corporation
InventorsSri Radhakrishnan, Ryan Olivera
Life of this patent
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Abstract
Methods and systems for determining collateral ventilation are disclosed. Methods may comprise introducing a diagnostic catheter into a lung compartment via an assisted ventilation device, inflating the occluding member to isolate the lung compartment, and performing a diagnostic procedure with the catheter while the patient is ventilated via the assisted ventilation device. 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 device. The presence of collateral ventilation may be determined based on the exhaled volume from the isolated lung compartment over the predetermined period of time.
Claims19
A system for determining collateral ventilation is not present in a patient, the system comprising:
- a diagnostic catheter configured to be introduced into a lung compartment, the diagnostic catheter comprising an occluding member on a distal end configured to inflate such that the lung compartment is isolated;
- a display configured to display data generated from a diagnostic procedure performed with the diagnostic catheter;
- and a control unit coupled to the diagnostic catheter, wherein the control unit is configured to:
- determine an exhaled volume from the isolated lung compartment over a predetermined period of time;
- cause the display to display at least a graph with a plurality of data points, each data point of the plurality of data points representing the exhaled volume from the isolated lung compartment over a previous predetermined period of time;
- and determine that collateral ventilation is not present in the isolated lung compartment if the exhaled volume from the isolated lung compartment over the predetermined period of time decreases below a threshold value.
A method for determining collateral ventilation is not present in a patient, the method comprising:
- providing a diagnostic catheter configured to be introduced into a lung compartment, the diagnostic catheter comprising an occluding member on a distal end configured to inflate such that the lung compartment is isolated;
- and performing a diagnostic procedure via the diagnostic catheter, wherein data generated from the diagnostic procedure are displayed on a display, wherein the diagnostic procedure comprises:
- determining an exhaled volume from the isolated lung compartment over a predetermined period of time;
- causing the display to display at least a graph with a plurality of data points, each data point of the plurality of data points representing the exhaled volume from the isolated lung compartment over a previous predetermined period of time;
- and determining that collateral ventilation is not present in the isolated lung compartment if the exhaled volume from the isolated lung compartment over the predetermined period of time decreases below a threshold value.
Dependencies are inferred from the claim text.