Patent US5954766A successfully refreshed from Google Patents.
US5954766A
Expired / Lapsed
US
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Body fluid flow control device
Assignee: Pulmonx Corp
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Filing: 1997-09-16
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Granted: 1999-09-21
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Expires: 2017-09-16
Abstract
Abstract A device to provide body fluid flow control in the form of a valve to be located within a duct or passageway. The device is controlled through pressure above a preselected threshold. Bulk resilience about a passageway in a valve body provides the mechanism for controlled flow. One-way valve operation may be provided through a flap or through a pressure differential on the valve body depending upon the direction of flow. A frame structure positioned within a resilient seal includes longitudinally elongate elements which may be of spring material, malleable material or heat recoverable material so as to accomplish an initial insertion state and an expanded anchoring state. A valve support transitions between the resilient seal portion and the valve body to insure that the states do not change the threshold opening pressure. Insertion devices may be employed to position and actuate a change of state of the frame in the body duct or passageway.
Inventors
- 👤 Gholam-Reza Zadno-Azizi
- 👤 John S. Ford
- 👤 April Marano-Ford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:13
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2412; A61F2/2418; A61F2/0004; A61F2/0009; A61F2/0022; A61F2/2475; A61F2/82; A61F2/86; A61F2/88; A61F2/90; A61F2/91; A61F2/95; A61F2/958; A61F2210/00; A61F2210/0014; A61F2210/0023; A61F2210/0033
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
172 words
A body fluid flow control device comprising a resilient seal of substantially annular configuration; a frame extending within at least a portion of the resilient seal and including a passageway extending longitudinally through the frame and at least one longitudinally extending element having an insertion state and an anchoring state, the anchoring state being with the at least one longitudinally extending element outwardly of the insertion state, thereby expanding the portion of the resilient seal within which the frame extends, the passageway being inwardly of the at least one longitudinally extending element; a valve body having bulk resilience and a passage therethrough resiliently biased closed by the bulk resilience and communicating with the passageway, the passage being a single slit, the valve body having two substantially flat sides parallel to the slit which is located therebetween to effect a one-way valve; a valve support about the valve body and attached to the valve body and to the resilient seal, the passage being in communication with the passageway extending longitudinally through the frame.
Claim 2
Dependent Claim
172 words
A body fluid flow control device comprising a resilient seal of substantially annular configuration; a frame extending within at least a portion of the resilient seal and including a passageway extending longitudinally through the frame and at least one longitudinally extending element having an insertion state and an anchoring state, the anchoring state being with the at least one longitudinally extending element outwardly of the insertion state, thereby expanding the portion of the resilient seal within which the frame extends, the passageway being inwardly of the at least one longitudinally extending element; a valve body having bulk resilience and a passage therethrough resiliently biased closed by the bulk resilience and communicating with the passageway, the passage being a single slit, the valve body having two substantially flat sides parallel to the slit which is located therebetween to effect a one-way valve; a valve support about the valve body and attached to the valve body and to the resilient seal, the passage being in communication with the passageway extending longitudinally through the frame.
Claim 3
Dependent Claim
22 words
The body fluid flow control device of claim 1, the resilient seal, the valve body and the valve support being one piece.
Claim 4
Dependent Claim
21 words
The body fluid flow control device of claim 1, the valve body extending into the passageway extending longitudinally through the frame.
Claim 5
Dependent Claim
163 words
A body fluid flow control device comprising a resilient seal of substantially annular configuration; a frame extending within at least a portion of the resilient seal and including a passageway extending longitudinally through the frame and at least one longitudinally extending element having an insertion state and an anchoring state, the anchoring state being with the at least one longitudinally extending element outwardly of the insertion state, thereby expanding the portion of the resilient seal within which the frame extends, the passageway being inwardly of the at least one longitudinally extending element; a valve body having bulk resilience and a passage therethrough resiliently biased closed by the bulk resilience and communicating with the passageway; a valve support about the valve body and attached to the valve body and to the resilient seal, the passage being in communication with the passageway extending longitudinally through the frame, the valve support having a portion extending from the valve portion, the valve body being substantially a disk.
Claim 6
Dependent Claim
163 words
A body fluid flow control device comprising a resilient seal of substantially annular configuration; a frame extending within at least a portion of the resilient seal and including a passageway extending longitudinally through the frame and at least one longitudinally extending element having an insertion state and an anchoring state, the anchoring state being with the at least one longitudinally extending element outwardly of the insertion state, thereby expanding the portion of the resilient seal within which the frame extends, the passageway being inwardly of the at least one longitudinally extending element; a valve body having bulk resilience and a passage therethrough resiliently biased closed by the bulk resilience and communicating with the passageway; a valve support about the valve body and attached to the valve body and to the resilient seal, the passage being in communication with the passageway extending longitudinally through the frame, the valve support having a portion extending from the valve portion, the valve body being substantially a disk.
Claim 7
Dependent Claim
163 words
A body fluid flow control device comprising a resilient seal of substantially annular configuration; a frame extending within at least a portion of the resilient seal and including a passageway extending longitudinally through the frame and at least one longitudinally extending element having an insertion state and an anchoring state, the anchoring state being with the at least one longitudinally extending element outwardly of the insertion state, thereby expanding the portion of the resilient seal within which the frame extends, the passageway being inwardly of the at least one longitudinally extending element; a valve body having bulk resilience and a passage therethrough resiliently biased closed by the bulk resilience and communicating with the passageway; a valve support about the valve body and attached to the valve body and to the resilient seal, the passage being in communication with the passageway extending longitudinally through the frame, the valve body being a disk, the at least one longitudinally extending element forming an expanded metal cylinder.
Claim 8
Dependent Claim
163 words
A body fluid flow control device comprising a resilient seal of substantially annular configuration; a frame extending within at least a portion of the resilient seal and including a passageway extending longitudinally through the frame and at least one longitudinally extending element having an insertion state and an anchoring state, the anchoring state being with the at least one longitudinally extending element outwardly of the insertion state, thereby expanding the portion of the resilient seal within which the frame extends, the passageway being inwardly of the at least one longitudinally extending element; a valve body having bulk resilience and a passage therethrough resiliently biased closed by the bulk resilience and communicating with the passageway; a valve support about the valve body and attached to the valve body and to the resilient seal, the passage being in communication with the passageway extending longitudinally through the frame, the valve body being a disk, the at least one longitudinally extending element forming an expanded metal cylinder.
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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) | 2002-09-20 | 2003-03-22 | 2003-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-09-20 | 2007-03-22 | 2007-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-09-20 | 2011-03-22 | 2011-09-21 | $7700.00 | Window Closed / Lapsed |