Patent US6709401B2 successfully refreshed from Google Patents.
US6709401B2
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US
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Methods, systems, and kits for lung volume reduction
Assignee: Pulmonx Corp
•
Filing: 2001-07-02
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Granted: 2004-03-23
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Expires: 2021-07-02
Abstract
Abstract Lung volume reduction is performed in a minimally invasive manner by isolating a lung tissue segment, optionally reducing gas flow obstructions within the segment, and aspirating the segment to cause the segment to at least partially collapse. Further optionally, external pressure may be applied on the segment to assist in complete collapse. Reduction of gas flow obstructions may be achieved in a variety of ways, including over inflation of the lung, introduction of mucolytic or dilation agents, application of vibrational energy, induction of absorption atelectasis, or the like. Optionally, diagnostic procedures on the isolated lung segment may be performed, typically using the same isolation/access catheter.
Inventors
- 👤 Rodney A. Perkins
- 👤 Peter P. Soltesz
- 👤 Robert Kotmel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:34
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12131; A61B17/12181; A61B17/1219; A61B17/12027; A61B17/1204; A61B17/12045; A61B17/12099; A61B17/12104; A61B17/12136; A61B17/12159; A61B17/12186; A61B50/00; A61B50/30; A61M; A61M16/00; A61M16/04; A61M16/0402; A61M16/0404; A61M16/0418; A61M16/0434; A61M16/0454; A61M16/0459; A61M16/0486; A61B1/00; A61B1/00163; A61B1/00165; A61B1/005; A61B1/0051; A61B1/267; A61B1/2676; A61B17/00491; A61B2017/00535; A61B2017/1205; A61B17/28; A61B17/29; A61B2017/2901; A61B2017/2905; A61B2017/2926; A61B2017/2927; A61M16/0003; A61M2016/0027; A61M16/0411; A61M2016/0413; A61M25/00; A61M25/10; A61M2025/1043; A61M2025/1052; A61M2205/00; A61M2205/05; A61M2205/058; A61M2209/00; A61M2209/06; A61M2210/00; A61M2210/10; A61M2210/1025; A61M2210/1039
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
36 words
A method for lung volume reduction, said method comprising: isolating a lung tissue segment; determining a disease-related parameter within the isolated segment; and aspirating the isolated segment if it is determined that the segment is diseased.
Claim 2
Independent Claim
36 words
A method for lung volume reduction, said method comprising: isolating a lung tissue segment; determining a disease-related parameter within the isolated segment; and aspirating the isolated segment if it is determined that the segment is diseased.
Claim 3
Dependent Claim
21 words
A method as in claim 1 , where determining a disease-related parameter comprises measuring air flow into the lung tissue segment.
Claim 4
Dependent Claim
22 words
A method as in claim 1 , wherein determining a disease-related parameter comprises measuring carbon dioxide concentration in the lung tissue segment.
Claim 5
Dependent Claim
22 words
A method as in claim 1 , wherein determining a disease-related parameter comprises measuring forced expiratory volume of the lung tissue segment.
Claim 6
Dependent Claim
20 words
A method as in claim 1 , wherein determining a disease-related parameter comprises measuring pressure within the lung tissue segment.
Claim 7
Dependent Claim
39 words
A method as in claim 1 , wherein isolating the lung tissue segment comprises positioning a catheter in an air passage leading to the lung tissue segment and inflating a balloon on the catheter to occlude the air passage.
Claim 8
Dependent Claim
28 words
A method as in claim 6 , wherein aspirating comprises drawing gas from the isolated lung segment through a lumen in the catheter while the balloon remains inflated.
Claim 9
Dependent Claim
26 words
A method as in claim 1 , further comprising sealing an air passage which opens to the lung tissue segment to inhibit reinflation of the segment.
Claim 10
Dependent Claim
17 words
A method as in claim 8 , wherein sealing comprises deploying a plug in the air passage.
Claim 11
Dependent Claim
23 words
A method as in claim 9 , wherein the plug is swellable and absorbs water to swell within the air passage when deployed.
Claim 12
Dependent Claim
22 words
A method as in claim 10 , wherein the plug comprises a collagen hydrogel which is not fully hydrated prior to deployment.
Claim 13
Dependent Claim
23 words
A method in claim 1 , wherein determining a disease-related parameter comprises measuring the compliance or pressure/volume curve of a lung tissue segment.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-03-23 | 2007-09-22 | 2008-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-03-23 | 2011-09-22 | 2012-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-03-23 | 2015-09-22 | 2016-03-23 | $7700.00 | Window Closed / Lapsed |