Patent US4721095A successfully refreshed from Google Patents.
US4721095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for controlling the flow of a fluid and a prosthetic organ equipped with this device
Assignee: Centre National de la Recherche Scientifique
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Filing: 1984-09-14
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Granted: 1988-01-26
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Expires: 2004-09-14
Abstract
Abstract A device for controlling the flow of a fluid, more especially a biological fluid and in particular the urinary flow, the device including a rod which, in the rest condition, is sealingly clamped, by any appropriate clamping mechanism, inside a connecting tube, and which is made from a flexible plastic material presenting shrinkage on polymerization, and a mechanism which is adapted to prevent the axial movement of the valve rod along the connecting tube under the effect of the pressure of a fluid filling two flexible activating bags connected through the connecting tube, which may be incorporated with a third flexible bag. A prosthetic organ is formed by a urethral prosthesis of the interchangeable type including a tube made, for example, from silicon elastomer and a plurality of spurs formed on its outer surface and preventing any axial movement thereof, some of which are directed downwards, whereas the remainder are directed upwards, which prosthetic organ further includes, at the proximal end of the tube a mechanism providing sealing with respect to the bladder cooperates with the device for controlling the urinary.
Inventors
- 👤 Pierre Rey
- 👤 Jacqueline Leandri
- 👤 Clement Abbou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:04
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/0004; A61F2/0031; A61F2/0036; A61F2/004; Y; Y10; Y10S; Y10S128/00; Y10S128/25
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
188 words
A device for controlling the flow of a fluid in a duct, comprising: first and second flexible activating bags containing an activating fluid; a connecting tube for connecting said first and second bags; valve means responsive solely to the pressure of said activating fluid obtained by manual deformation of one of said first and second activation bags, said valve means comprising a valve seat in the form of a rod located inside said connecting tube, wherein said connecting tube comprises a valve element formed of a flexible plastic material for sealing clamping said rod, said first bag being adapted to effect upon deflation by manual deformation, the re-establishment of the flow of fluid in a duct, whereas the second activating bag is adapted to effect, also by deflation by manual deformation, cancelling of said flow; clamp means for reinforcing the sealing clamping of said rod in a rest condition inside said connecting tube, and means for preventing said rod from leaving said connecting tube under the effect of said pressure wherein the clamping action of said connecting tube and said clamp means is overcome solely by said pressure.
Claim 2
Independent Claim
188 words
A device for controlling the flow of a fluid in a duct, comprising: first and second flexible activating bags containing an activating fluid; a connecting tube for connecting said first and second bags; valve means responsive solely to the pressure of said activating fluid obtained by manual deformation of one of said first and second activation bags, said valve means comprising a valve seat in the form of a rod located inside said connecting tube, wherein said connecting tube comprises a valve element formed of a flexible plastic material for sealing clamping said rod, said first bag being adapted to effect upon deflation by manual deformation, the re-establishment of the flow of fluid in a duct, whereas the second activating bag is adapted to effect, also by deflation by manual deformation, cancelling of said flow; clamp means for reinforcing the sealing clamping of said rod in a rest condition inside said connecting tube, and means for preventing said rod from leaving said connecting tube under the effect of said pressure wherein the clamping action of said connecting tube and said clamp means is overcome solely by said pressure.
Claim 3
Independent Claim
248 words
A device for controlling the flow of a fluid in a duct, comprising: first and second flexible bags containing an activating fluid; a first connecting tube for interconnecting said first and second bags containing an activating fluid; a third flexible bag communicating with said first and second activating bags; a connecting pipe for connecting said third bag to one of said first and second activating bags; valve means responsive solely to the pressure of said activating fluid obtained by manual deformation of one of said first and second activating bags, said valve means comprising a valve seat in the form of a rod located inside said connecting tube, wherein said connecting tube comprises a valve element for sealingly clamping said rod formed of a flexible plastic material, said first bag being adapted to effect, upon deflation by manual deformation, the re-establishment of the flow of fluid in a duct, whereas the second activating bag is adapted to effect, also by deflation by manual deformation, cancelling of said flow, wherein said third flexible bag is adapted to be inserted inside said duct in order to control the flow of said fluid through its deflation and inflation; clamp means for reinforcing the sealing clamping of said rod in a rest condition inside said connecting tube, and means for preventing said rod from leaving the connecting tube under the effect of said pressure, wherein the clamping action of said connecting tube and said clamp means is overcome solely by said pressure.
Claim 4
Independent Claim
248 words
A device for controlling the flow of a fluid in a duct, comprising: first and second flexible bags containing an activating fluid; a first connecting tube for interconnecting said first and second bags containing an activating fluid; a third flexible bag communicating with said first and second activating bags; a connecting pipe for connecting said third bag to one of said first and second activating bags; valve means responsive solely to the pressure of said activating fluid obtained by manual deformation of one of said first and second activating bags, said valve means comprising a valve seat in the form of a rod located inside said connecting tube, wherein said connecting tube comprises a valve element for sealingly clamping said rod formed of a flexible plastic material, said first bag being adapted to effect, upon deflation by manual deformation, the re-establishment of the flow of fluid in a duct, whereas the second activating bag is adapted to effect, also by deflation by manual deformation, cancelling of said flow, wherein said third flexible bag is adapted to be inserted inside said duct in order to control the flow of said fluid through its deflation and inflation; clamp means for reinforcing the sealing clamping of said rod in a rest condition inside said connecting tube, and means for preventing said rod from leaving the connecting tube under the effect of said pressure, wherein the clamping action of said connecting tube and said clamp means is overcome solely by said pressure.
Claim 5
Independent Claim
28 words
The device as claimed in anyone of claims 1 or 2, therein the means for clamping said rod further comprises a second tube disposed about said connecting tube.
Claim 6
Independent Claim
27 words
The device as claimed in anyone of claims 1 or 2, wherein said clamping means further comprises at least one O seal disposed about said connecting tube.
Claim 7
Independent Claim
26 words
The device as claimed in anyone of claims 1 or 2, wherein said clamping means further comprises at least one ring disposed about said connecting tube.
Claim 8
Independent Claim
26 words
The device as claimed in anyone of claims 1 or 2, wherein said clamping means further comprises at least one spring disposed about said connecting tube.
Claim 9
Independent Claim
23 words
The device as claimed in anyone of claims 1 or 2, wherein said clamping means further comprises a wall of said connecting tube.
Claim 10
Independent Claim
34 words
The device as claimed in anyone of claims 1 or 2, wherein the means for preventing said rod from leaving said connecting tube under the effect of said pressure further comprises a cross piece.
Claim 11
Independent Claim
33 words
The device as claimed in anyone of claims 1 or 2, wherein the means for preventing said rod from leaving said connecting tube under the effect of said pressure further comprises a spur.
Claim 12
Dependent Claim
35 words
The device as claimed in claim 2, wherein said connecting pipe connecting said third bag to one of said first and second activating bags further comprises an intermediate cut off and sealed quick junction device.
References Cited (Backward Citations)
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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) | 1991-01-25 | 1991-07-27 | 1992-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-25 | 1995-07-27 | 1996-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-25 | 1999-07-27 | 2000-01-26 | $7700.00 | Window Closed / Lapsed |