US20020077696A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Body fluid flow control device
Assignee: Pulmonx Corp
•
Filing: 2002-02-21
•
Granted: —
•
Expires: 2022-02-21
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 Ford
- 👤 April Marano-Ford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:08
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: 16
Claim 1
Independent Claim
147 words
1 . 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.
Claim 2
Dependent Claim
147 words
1 . 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.
Claim 3
Dependent Claim
36 words
2 . The body fluid flow control device of claim 1 , the resilient seal further including a skirt extending at least partially over the at least one longitudinally extending element to form a peripheral seal.
Claim 4
Dependent Claim
50 words
3 . The body fluid flow control device of claim 1 , the resilient seal further including a skirt extending within the at least one longitudinally extending element and having a cuff over one end of each of the at least one longitudinally extending element to form a peripheral seal.
Claim 5
Dependent Claim
24 words
4 . The body fluid flow control device of claim 1 , the resilient seal further including a skirt extending fully over the frame.
Claim 6
Dependent Claim
20 words
5 . The body fluid flow control device of claim 1 , the passage having a predetermined fluid opening pressure.
Claim 7
Dependent Claim
26 words
6 . The body fluid flow control device of claim 5 , the fluid opening pressure being about 0.2 psi to 3.0 psi for urinary incontinence.
Claim 8
Dependent Claim
26 words
7 . The body fluid flow control device of claim 5 , the fluid opening pressure being about 0.005 psi to 1.0 psi for intervascular placement.
Claim 9
Dependent Claim
18 words
8 . The body fluid flow control device of claim 1 , the passage being a single slit.
Claim 10
Dependent Claim
25 words
9 . The body fluid flow control device of claim 1 , the resilient seal, the valve body and the valve support being one piece.
Claim 11
Dependent Claim
35 words
10 . The body fluid flow control device of claim 1 , the at least one longitudinally extending element being heat recoverable with a transition temperature range below a reasonable range of human body temperatures.
Claim 12
Dependent Claim
41 words
11 . The body fluid flow control device of claim 1 , the at least one longitudinally extending element being spring biased toward the anchoring state and being held in the insertion state by a release wire separable from the frame.
Claim 13
Dependent Claim
37 words
12 . The body fluid flow control device of claim 1 further comprising a flap attached to the valve body adjacent the passage and extending over the passage to restrict flow to one direction through the passage.
Claim 14
Dependent Claim
54 words
13 . The body fluid flow control device of claim 1 further comprising an elongate expander means for expanding the at least one longitudinally extending element from the insertion state to the anchoring state, the at least one longitudinally extending element defining a concavity receiving at least a portion of the elongate expander means.
Claim 15
Dependent Claim
36 words
14 . The body fluid flow control device of claim 13 , the elongate expander means including a balloon at a distal end thereof with a passage extending substantially the length of the elongate expander means.
Claim 16
Dependent Claim
53 words
15 . The body fluid flow control device of claim 13 , the elongate expander means including an outer sheath into which the resilient seal and the frame are positionable in the insertion state and a ram extending within the sheath to engage the frame in the passageway extending longitudinally through the frame.
References Cited (Backward Citations)
US111619A
Cited
US112729A
Cited
US41906A
Cited
US51799A
Cited
US52344A
Cited
US56274A
Cited
US62120A
Cited
US77593A
Cited
US87153A
Cited
US95209A
Cited
US25132A
Cited
US11620A
Cited
US3667069A
Cited
US3723996A
Cited
US4086665A
Cited
US4250873A
Cited
US4850999A
Cited
US4808183A
Cited
US4470157A
Cited
US4417360A
Cited
US4477930A
Cited
US4819664A
Cited
US4732152A
Cited
US4759758A
Cited
US4710192A
Cited
US4832680A
Cited
US4795449A
Cited
US4934999A
Cited
US4830003A
Cited
US4877025A
Cited
US5116564A
Cited
US5500014A
Cited
US5562608A
Cited
US5104406A
Cited
US5840081A
Cited
US6168614B1
Cited
US5411552A
Cited
US5116360A
Cited
US5358518A
Cited
US5151105A
Cited
US5662713A
Cited
US5123919A
Cited
US5445626A
Cited
US5382261A
Cited
US5411507A
Cited
US5486154A
Cited
US5392775A
Cited
US5499995C1
Cited
US5499995A
Cited
US5683451A
Cited
US5417226A
Cited
US5755770A
Cited
US6022312A
Cited
US6312407B1
Cited
US5660175A
Cited
US6327772B1
Cited
US6325778B1
Cited
US6325777B1
Cited
US6355014B1
Cited
US6027525A
Cited
US5855587A
Cited
US5855601A
Cited
US6123663A
Cited
US6302893B1
Cited
US5782916A
Cited
US6183520B1
Cited
US5989288A
Cited
US6135991A
Cited
US6200333B1
Cited
US6083255A
Cited
US5957949A
Cited
US6162245A
Cited
US6007575A
Cited
US5893826A
Cited
US5868779A
Cited
US5984965A
Cited
US6632243B1
Cited
US5954766A
Cited
US5954765A
Cited
US6068635A
Cited
US6009614A
Cited
US6141855A
Cited
US6240615B1
Cited
US6174323B1
Cited
US6270527B1
Cited
US6020380A
Cited
US6051022A
Cited
US6206918B1
Cited
US6234996B1
Cited
US6287290B1
Cited
US6258100B1
Cited
US6293951B1
Cited
US6416554B1
Cited
US6402754B1
Cited
US6398775B1
Cited
US6458076B1
Cited
US20010037808A1
Cited
US6485407B2
Cited
US20030083671A1
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.