Patent US7175644B2 successfully refreshed from Google Patents.
US7175644B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Devices and methods for maintaining collateral channels in tissue
Assignee: Broncus Medical Inc
•
Filing: 2001-09-04
•
Granted: 2007-02-13
•
Expires: 2021-09-04
Abstract
Abstract The devices and methods of placement of such devices disclosed herein are directed to altering gaseous flow within a lung to improve the expiration cycle of, for instance, an individual having Chronic Obstructive Pulmonary Disease. More particularly, these devices produce and maintain collateral openings or channels through the airway wall so that oxygen depleted/carbon dioxide rich air is able to pass directly out of the lung tissue to facilitate both the exchange of oxygen ultimately into the blood and/or to decompress hyper-inflated lungs. The medical kits disclosed herein are also directed to produce and maintain collateral openings through airway walls.
Inventors
- 👤 Joel D. Cooper
- 👤 James M. Davenport
- 👤 Bryan Loomas
- 👤 Don Tanaka
- 👤 Gary Kaplan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:57
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61B; A61B17/00; A61B17/064; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1485; A61B18/1492; A61B8/00; A61B8/12; A61B8/44; A61B8/4444; A61B8/445; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/92; A61B17/11; A61B18/1477; A61B2017/00017; A61B2017/00022; A61B2017/00106; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/00247; A61B2017/00252; A61B17/0057; A61B2017/00575; A61B2017/00743; A61B2017/00809; A61B17/22; A61B2017/22051; A61B2017/22065; A61B2017/22067; A61B2018/00053; A61B2018/00214; A61B2018/00315; A61B2018/00541; A61B2018/00571; A61B2018/00601; A61B2018/00636; A61B2018/00696; A61B2018/00738; A61B2018/00982; A61B2018/1405; A61B2018/1417; A61B2018/1425; A61B2018/1472; A61B90/00; A61B90/39; A61B2090/3937; A61B2090/395; A61B2218/00; A61B2218/001; A61B2218/002; A61B5/00; A61B5/48; A61B5/4887; A61B5/489; A61B8/06; A61B90/36; A61F2/24; A61F2/2412; A61F2/91; A61F2002/043; A61F2002/061; A61F2002/072; A61F2/848; A61F2002/8483; A61F2220/00; A61F2220/0008; A61F2220/0016; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/005; A61F2230/0058; A61F2230/0063; A61F2230/0067; A61F2230/0073; A61F2230/0076; A61F2230/0078
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
180 words
A implantable conduit for maintaining the patency of an opening in tissue, the conduit being detachable from a balloon catheter for remote implantation within the opening, the conduit comprising: a center section having a first end and a second end and a central axis extending between said ends, a passageway within said center section extending between said ends, said center section having a wall; and a plurality of independent extension members extending from both of the first and second ends of the center section where each extension member is unconnected to an adjacent extension member such that the extension member is independently moveable relative to the adjacent extension member, said extension members having a wall; wherein at least a portion of said wall of each said extension members has a weakened section comprising a reduced cross-sectional wall thickness such that said extension members may bend at said respective weakened section when an outward radial force is applied thereto such that each extension member flares independently to form a cuff or grommet shape to keep the conduit within the tissue opening.
Claim 2
Dependent Claim
180 words
A implantable conduit for maintaining the patency of an opening in tissue, the conduit being detachable from a balloon catheter for remote implantation within the opening, the conduit comprising: a center section having a first end and a second end and a central axis extending between said ends, a passageway within said center section extending between said ends, said center section having a wall; and a plurality of independent extension members extending from both of the first and second ends of the center section where each extension member is unconnected to an adjacent extension member such that the extension member is independently moveable relative to the adjacent extension member, said extension members having a wall; wherein at least a portion of said wall of each said extension members has a weakened section comprising a reduced cross-sectional wall thickness such that said extension members may bend at said respective weakened section when an outward radial force is applied thereto such that each extension member flares independently to form a cuff or grommet shape to keep the conduit within the tissue opening.
Claim 3
Dependent Claim
28 words
The conduit of claim 1 , wherein said reduced cross-sectional wall thickness of said weakened section is less than a thickness of said wall of said center section.
Claim 4
Dependent Claim
24 words
The conduit of claim 1 , wherein said conduit comprises a material selected from the group consisting of polytetrafluoroethylene, polypropylene, and a combination thereof.
Claim 5
Dependent Claim
32 words
The conduit of claim 1 , wherein said center section is radially expandable away from said central axis to allow said center section to assume an expanded profile from a reduced profile.
Claim 6
Dependent Claim
38 words
The conduit of claim 4 , wherein a length of said center section is less than twice the square root of a cross sectional area of said center section when said center section is in said expanded profile.
Claim 7
Dependent Claim
32 words
The conduit of claim 4 , wherein a length of said center section measured along said central axis decreases as said center section expands from said reduced profile to said expanded profile.
Claim 8
Dependent Claim
15 words
The conduit of claim 4 , wherein said center section comprises a shape memory alloy.
Claim 9
Dependent Claim
32 words
The conduit of claim 1 , where said extension members extending from said first end of said conduit are longer than said extension members extending from a second end of said conduit.
Claim 10
Dependent Claim
23 words
The conduit of claim 1 , wherein said passageway has a cross sectional area between 0.196 mm 2 to 254 mm 2 .
Claim 11
Dependent Claim
23 words
The conduit of claim 1 , wherein said passageway has a cross sectional area between 3 mm 2 to 20 mm 2 .
Claim 12
Dependent Claim
13 words
The conduit of claim 1 , wherein said conduit has an asymmetrical profile.
Claim 13
Dependent Claim
21 words
The conduit of claim 1 , wherein said conduit has a ratio of a length to a diameter of approximately 1:1.
Claim 14
Dependent Claim
14 words
The conduit of claim 1 , further comprising a self-cleaning mechanism within said passageway.
Claim 15
Dependent Claim
16 words
The conduit of claim 13 , wherein said self-cleaning mechanism is a ball bearing shaker valve.
Claim 16
Dependent Claim
15 words
The conduit of claim 1 , further comprising a one-way valve located within said passageway.
Claim 17
Dependent Claim
16 words
The conduit of claim 1 , further comprising a gas-permeable bacterial-resistant barrier located within said passageway.
Claim 18
Dependent Claim
20 words
The conduit of claim 1 , further comprising a barrier layer extending over at least a portion of the conduit.
Claim 19
Dependent Claim
15 words
The conduit of claim 17 , where the barrier layer extends over the center section.
Claim 20
Dependent Claim
15 words
The conduit of claim 17 , where the barrier layer extends over the entire conduit.
Claim 21
Dependent Claim
174 words
An implant for placement in an opening within an airway wall, the implant being remotely deployable from a catheter to remain within the opening and comprising: a center section having a first end and a second end and a central axis extending between said ends, a passageway within said center section extending between said ends, said center section having a wall; a plurality of indenendent extension members extending from both of the first and second ends of the center section, where each extension member is unconnected to an adjacent extension member such that the extension member is independently moveable relative to the adjacent extension member said extension members having a wall; wherein at least a portion of said wall of said extension members has a weakened section such that each of said extension members may bend at said respective weakened section when an outward radial force is applied to said extension member causing each extension member to flare independently and form a cuff or grommet shape to keep the conduit within the tissue opening.
Claim 22
Dependent Claim
174 words
An implant for placement in an opening within an airway wall, the implant being remotely deployable from a catheter to remain within the opening and comprising: a center section having a first end and a second end and a central axis extending between said ends, a passageway within said center section extending between said ends, said center section having a wall; a plurality of indenendent extension members extending from both of the first and second ends of the center section, where each extension member is unconnected to an adjacent extension member such that the extension member is independently moveable relative to the adjacent extension member said extension members having a wall; wherein at least a portion of said wall of said extension members has a weakened section such that each of said extension members may bend at said respective weakened section when an outward radial force is applied to said extension member causing each extension member to flare independently and form a cuff or grommet shape to keep the conduit within the tissue opening.
Claim 23
Dependent Claim
32 words
The implant of claim 20 , wherein said center section is radially expandable away from said central axis to allow said center section to assume an expanded profile from a reduced profile.
Claim 24
Dependent Claim
15 words
The implant of claim 20 , wherein said center section comprises a shape memory alloy.
Claim 25
Dependent Claim
20 words
The implant of claim 20 , further comprising a barrier layer extending over at least a portion of the implant.
Claim 26
Dependent Claim
15 words
The implant of claim 23 , where the barrier layer extends over the center section.
Claim 27
Dependent Claim
15 words
The implant of claim 23 , where the barrier layer extends over the entire implant.
References Cited (Backward Citations)
US2127903A
Cited
US3779234A
Cited
US3942530A
Cited
US4534761A
Cited
US4582067A
Cited
US4770185A
Cited
US4503569A
Cited
US4538618A
Cited
US4773413A
Cited
US4674498A
Cited
US4687482A
Cited
US4682596A
Cited
US4583969A
Cited
US4892099A
Cited
US4676782A
Cited
US4757822A
Cited
US4750902A
Cited
US4785402A
Cited
US4807634A
Cited
US4753236A
Cited
US5061275A
Cited
US5002058A
Cited
US4769031A
Cited
US4771788A
Cited
US4887606A
Cited
US4957508A
Cited
US4757821A
Cited
US4967753A
Cited
US4869268A
Cited
US4795465A
Cited
US4802476A
Cited
US4917097A
Cited
US5081993A
Cited
US4870953A
Cited
US4899757A
Cited
US4834102A
Cited
US4977898A
Cited
US5368035A
Cited
US5105817A
Cited
US4955377A
Cited
US5054483A
Cited
US5425739A
Cited
US5105816A
Cited
US5127917A
Cited
US4973301A
Cited
US4976690A
Cited
US5030201A
Cited
US5170793A
Cited
US5148809A
Cited
US5413601A
Cited
US5238027A
Cited
US5064435A
Cited
US5299578A
Cited
US5375602A
Cited
US5282824A
Cited
US5330500A
Cited
US5334146A
Cited
US5344420A
Cited
US5201316A
Cited
US5261409A
Cited
US5795325A
Cited
US5443498A
Cited
US5876445A
Cited
US5540713A
Cited
US5514154A
Cited
US5704361A
Cited
US5351693A
Cited
US5363853A
Cited
US5860951A
Cited
US5571180A
Cited
US5465726A
Cited
US5320106A
Cited
US5257990A
Cited
US5313950A
Cited
US5755769A
Cited
US6019787A
Cited
US5645559A
Cited
US5876448A
Cited
US5339289A
Cited
US5830191A
Cited
US6129726A
Cited
US5383460A
Cited
US5522822A
Cited
US5792119A
Cited
US5275166A
Cited
US5273529A
Cited
US5383887A
Cited
US5402792A
Cited
US5334210A
Cited
US5464016A
Cited
US5309915A
Cited
US5759769A
Cited
US5520684A
Cited
WO1995002361A1
Cited
US5385148A
Cited
US5505088A
Cited
US5618301A
Cited
US5381795A
Cited
US5474075A
Cited
US5607444A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2010-02-12 | 2010-08-14 | 2011-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2014-02-12 | 2014-08-14 | 2015-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2018-02-12 | 2018-08-14 | 2019-02-13 | $7700.00 | Window Closed / Lapsed |