IP Library Granted Patent US 8,808,194
Granted Patent B2
US 8,808,194 · App. 13/174,633 · Granted Aug 19, 2014

Methods and systems for endobronchial diagnostics

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Quick Facts
Patent No.
US 8,808,194
App. No.
13/174,633
Granted
Aug 19, 2014
Kind
B2
Abstract

Methods and systems for targeting, accessing and diagnosing diseased lung compartments are disclosed. The method comprises introducing a diagnostic catheter with an occluding member at its distal end into a lung segment via an assisted ventilation device; inflating the occluding member to isolate the lung segment; and performing a diagnostic procedure with the catheter while the patient is ventilated. The proximal end of the diagnostic catheter is configured to be attached to a console. The method may also comprise introducing the diagnostic catheter into the lung segment; inflating the occluding member to isolate the lung segment; and monitoring blood oxygen saturation. The method may further comprise introducing the diagnostic catheter into the lung segment; determining tidal flow volume in the lung segment; determining total lung capacity of the patient; and determining a flow rank value based on the tidal flow volume of the lung segment and the total lung capacity.

Claims (11)

1. A method of assessing the functionality of a lung segment of a patient, the method comprising:

introducing a diagnostic catheter into the lung segment, wherein the diagnostic catheter comprises a distal end comprising an occluding member and a proximal end configured to be attached to a console;

determining tidal flow volume in the lung segment;

determining total lung capacity of the patient;

determining a flow rank value based on the tidal flow volume of the lung segment and the total lung capacity; and

determining a treatment option based on the flow rank value,

wherein at least the tidal flow volume and the total lung capacity are displayed on the console.

2. The method of claim 1 , wherein the tidal flow volume, total lung capacity and flow rank value are all displayed on the console.

3. The method of claim 1 , further comprising inflating the occluding member to isolate the lung segment.

4. The method of claim 3 , further comprising determining the presence of collateral ventilation in the lung segment.

5. The method of claim 4 , further comprising determining a treatment option based on the presence of collateral ventilation.

Assignments (9)
RELEASE OF SECURITY INTEREST Recorded Mar 4, 2026
From: CANADIAN IMPERIAL BANK OF COMMERCE
To: PULMONX CORPORATION
Reel/Frame 075028/0274 →
SECURITY INTEREST Recorded Mar 2, 2026
From: PULMONX CORPORATION
To: PERCEPTIVE CREDIT HOLDINGS V, LP, AS ADMINISTRATIVE AGENT
Reel/Frame 075012/0453 →
SECURITY INTEREST Recorded Jan 27, 2026
From: PULMONX CORPORATION
To: CANADIAN IMPERIAL BANK OF COMMERCE
Reel/Frame 074570/0001 →
RELEASE OF SECURITY INTEREST Recorded Sep 30, 2020
From: OXFORD FINANCE LLC, AS COLLATERAL AGENT
To: PULMONX CORPORATION
Reel/Frame 053952/0044 →
RELEASE OF SECURITY INTEREST Recorded Sep 30, 2020
From: BOSTON SCIENTIFIC CORPORATION
To: PULMONX CORPORATION
Reel/Frame 053953/0548 →
SECURITY INTEREST Recorded Mar 2, 2020
From: PULMONX CORPORATION
To: CANADIAN IMPERIAL BANK OF COMMERCE
Reel/Frame 052916/0213 →
SECURITY INTEREST Recorded Jul 26, 2017
From: PULMONX CORPORATION
To: BOSTON SCIENTIFIC CORPORATION
Reel/Frame 043349/0725 →
SECURITY INTEREST Recorded May 15, 2017
From: PULMONX CORPORATION
To: OXFORD FINANCE LLC, AS COLLATERAL AGENT
Reel/Frame 042466/0349 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 18, 2011
From: MANTRI, SURAG; RADHAKRISHNAN, SRIKANTH
To: PULMONX CORPORATION
Reel/Frame 027251/0614 →