Patent US978442A successfully refreshed from Google Patents.
US7175644B2
Expired / Lapsed
US
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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 21:32
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.
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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) | 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 |