US5366506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Proximity intraurethral valve using permanent magnet check
Assignee: INGENION
•
Filing: 1993-04-05
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Granted: 1994-11-22
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Expires: 2013-04-05
Abstract
Abstract An urethral magnet valve for insertion into the urethra of a person suffering from incontinence defines a binary duct relief valve comprising a nonferromagnetic tubular housing containing a valve member of a permanent magnet encapsulated within a nonmagnetic material, enabled on a valve seat of high magnetic permeability ferromagnetic nature, by a magnetic attraction therebetween. Retaining flanges integral with the housing prevent escape of the valve element when valve is open. A manually held external positioned permanent switching magnet induces magnetic torque and attraction on the valve element causing it to rotate within the tubular housing lifting same from the valve seat opening the passageway therethrough and through urethra.
Inventors
- 👤 Phillip J. Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:39
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/0004; A61F2/0022; A61F2/0009; A61F2/0018; F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/08; F16K31/086
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
185 words
An intraurethral magnetic valve for insertion into the urethra of a person's body comprising in combination a tubular housing, a valve element within said housing, and a valve seat sealingly engaged by said valve element, said tubular housing is non-magnetic having an internal recessed area adjacent one end thereof, a plurality of spaced fingers extending inwardly from said tubular housing in spaced relation to said recessed area, said valve seat in annular registration with said recessed area in said tubular housing, said valve element comprising an encapsulated permanent magnet magnetized along a center line axis, a nonferromagnetic means for encapsulation spacing said permanent magnet, means for spacing said permanent magnet in respect to said valve seat, said element being normally attracted to said valve seat occluding and sealing same, means for opening said valve comprising a source of magnetic attraction in spaced relation to said person's body, said magnetic attraction selectively imposes a magnetic field on said valve element pivoting same away from said sealing relation with said valve seat, and means for inserting said magnetic valve assembly within the urethra of said person's body.
Claim 2
Dependent Claim
185 words
An intraurethral magnetic valve for insertion into the urethra of a person's body comprising in combination a tubular housing, a valve element within said housing, and a valve seat sealingly engaged by said valve element, said tubular housing is non-magnetic having an internal recessed area adjacent one end thereof, a plurality of spaced fingers extending inwardly from said tubular housing in spaced relation to said recessed area, said valve seat in annular registration with said recessed area in said tubular housing, said valve element comprising an encapsulated permanent magnet magnetized along a center line axis, a nonferromagnetic means for encapsulation spacing said permanent magnet, means for spacing said permanent magnet in respect to said valve seat, said element being normally attracted to said valve seat occluding and sealing same, means for opening said valve comprising a source of magnetic attraction in spaced relation to said person's body, said magnetic attraction selectively imposes a magnetic field on said valve element pivoting same away from said sealing relation with said valve seat, and means for inserting said magnetic valve assembly within the urethra of said person's body.
Claim 3
Dependent Claim
29 words
The intraurethral magnetic valve of claim 1 wherein said permanent magnet, and said means for encapsulating and spacing said permanent magnet in relation to said valve seat are cylindrical.
Claim 4
Dependent Claim
49 words
The intraurethral magnetic valve of claim 1 wherein said means for spacing said magnetic valve element in respect to said valve seat comprises a nonferromagnetic area secured to said permanent magnet having a planar flattened surface to impart a fluid seal between said nonferromagnetic area and said valve seat.
Claim 5
Dependent Claim
29 words
The intraurethral magnetic valve of claim 1 wherein said means for opening said magnetic valve comprises a permanent switching magnet, said switching magnet magnetized along a center line axis.
Claim 6
Dependent Claim
49 words
The intraurethral magnetic valve of claim 1 wherein said means for inserting said magnetic valve within the urethra of said person's body comprises a contoured placement catheter having an elongated tubular body member, areas of longitudinally spaced retention bulges for resiliently positioning and securing said catheter within said urethra.
Claim 7
Dependent Claim
159 words
A intraurethral magnetic valve for insertion into the urethra of a person comprising in combination a tubular housing, a hinge valve element within said housing, a valve seat sealingly engaged by said valve element, said tubular housing is non-magnetic having an internal recessed area adjacent an upstream end thereof, said valve seat positioned for annular sealing registration with said recessed area, a plurality of annularly spaced flanges extending inwardly from said tubular housing and spaced in opposing relation to said valve seat, said valve element comprising an enclosed permanent magnet magnetized along a center line axis, a mounting hinge integral to said enclosed magnet and a pivot pin engaging said hinge valve element within said tubular housing, means for spacing said permanent magnet in relation to said valve seat, means for opening said valve by a source of magnetic attraction in spaced relation to said person, and means for securing said magnetic valve within the urethra of said person.
Claim 8
Dependent Claim
159 words
A intraurethral magnetic valve for insertion into the urethra of a person comprising in combination a tubular housing, a hinge valve element within said housing, a valve seat sealingly engaged by said valve element, said tubular housing is non-magnetic having an internal recessed area adjacent an upstream end thereof, said valve seat positioned for annular sealing registration with said recessed area, a plurality of annularly spaced flanges extending inwardly from said tubular housing and spaced in opposing relation to said valve seat, said valve element comprising an enclosed permanent magnet magnetized along a center line axis, a mounting hinge integral to said enclosed magnet and a pivot pin engaging said hinge valve element within said tubular housing, means for spacing said permanent magnet in relation to said valve seat, means for opening said valve by a source of magnetic attraction in spaced relation to said person, and means for securing said magnetic valve within the urethra of said person.
Claim 9
Dependent Claim
55 words
The intraurethral magnetic valve for insertion into the urethra of a person of claim 6 wherein said means for spacing said permanent magnet in said valve element in relation to said valve seat comprises a nonferromagnetic area secured to said permanent magnet to impart a fluid seal between said nonferromagnetic area and said valve seat.
Claim 10
Dependent Claim
32 words
The intraurethral magnetic valve of claim 6 wherein said means for opening said magnetic valve by a source of magnetic attraction comprises a permanent switching magnet magnetized along a center line axis.
Claim 11
Dependent Claim
58 words
The intraurethral magnetic valve of claim 6 wherein said means for securing said magnetic valve within the urethra of said person's body comprises a contoured placement catheter having an elongated tubular body member having areas of longitudinally spaced retention bulges for positioning and securing said contoured placement catheter within person in communication with the bladder and the urethra.
Claim 12
Dependent Claim
160 words
A magnetic valve comprising in combination a tubular housing, a valve element within said housing, and a valve seat adjacent one end thereof, said valve seat sealingly engaged by said valve element, said tubular housing is non-magnetic, a plurality of projections extending inwardly from said tubular housing in spaced relation to said valve seat, and said valve seat in annular registration with said tubular housing, said valve element comprising an encapsulated permanent magnet magnetized along a center line axis, a nonferromagnetic means for encapsulation of said permanent magnet, means for spacing said permanent magnet in respect to said valve seat, said valve element being normally attracted to said valve seat occluding and sealing same, means for opening said magnetic valve by a source of magnetic attraction positioned in spaced relation thereto, said source of said magnetic attractive selectively imposes a magnetic field on said valve element pivoting same away from said valve seat, opening a passage through said magnetic valve.
Claim 13
Dependent Claim
160 words
A magnetic valve comprising in combination a tubular housing, a valve element within said housing, and a valve seat adjacent one end thereof, said valve seat sealingly engaged by said valve element, said tubular housing is non-magnetic, a plurality of projections extending inwardly from said tubular housing in spaced relation to said valve seat, and said valve seat in annular registration with said tubular housing, said valve element comprising an encapsulated permanent magnet magnetized along a center line axis, a nonferromagnetic means for encapsulation of said permanent magnet, means for spacing said permanent magnet in respect to said valve seat, said valve element being normally attracted to said valve seat occluding and sealing same, means for opening said magnetic valve by a source of magnetic attraction positioned in spaced relation thereto, said source of said magnetic attractive selectively imposes a magnetic field on said valve element pivoting same away from said valve seat, opening a passage through said magnetic valve.
Claim 14
Dependent Claim
17 words
The magnetic valve of claim 10 wherein said encapsulated permanent magnet and said valve seat are cylindrical.
Claim 15
Dependent Claim
52 words
The magnetic valve of claim 10 wherein said means for spacing said magnetic valve element in respect to said valve seat comprises a nonferromagnetic area secured to said permanent magnet, said nonferromagnetic area having a planar flattened surface to impart a fluid seal between said magnet valve element and said valve seat.
Claim 16
Dependent Claim
31 words
The magnetic valve of claim 10 wherein said means for opening said magnetic valve by a source of magnetic attraction comprises a permanent switching magnet magnetized along a center line axis.
Claim 17
Dependent Claim
118 words
A magnetic valve comprising in combination a tubular housing, a hinge valve element within said housing, a valve seat engaged by said valve element, said tubular housing is non-magnetic, said valve seat positioned for annular sealing registration within said tubular housing, means for selectively retaining said valve element within said tubular housing, said valve element comprises an encapsulated permanent magnet magnetized along a center line axis, a mounting hinge integral to said encapsulated permanent magnet and a pivot pin engaging said mounting hinge and said tubular housing, means for spacing said permanent magnet in relation to said valve seat, means for opening said valve by a source of magnetic attraction located in spaced relation to said tubular housing.
Claim 18
Dependent Claim
118 words
A magnetic valve comprising in combination a tubular housing, a hinge valve element within said housing, a valve seat engaged by said valve element, said tubular housing is non-magnetic, said valve seat positioned for annular sealing registration within said tubular housing, means for selectively retaining said valve element within said tubular housing, said valve element comprises an encapsulated permanent magnet magnetized along a center line axis, a mounting hinge integral to said encapsulated permanent magnet and a pivot pin engaging said mounting hinge and said tubular housing, means for spacing said permanent magnet in relation to said valve seat, means for opening said valve by a source of magnetic attraction located in spaced relation to said tubular housing.
Claim 19
Dependent Claim
35 words
The magnetic valve of claim 14 wherein said means for selectively retaining said valve element within said tubular housing comprises flanges extending inwardly from said tubular housing and spaced in relation to said valve seat.
Claim 20
Dependent Claim
42 words
The magnetic valve of claim 14 wherein said means for spacing said permanent magnet in relation to said valve seat comprises a nonferromagnetic area secured to said permanent magnet to impart a fluid seal between said nonferromagnetic area and said valve seat.
Claim 21
Dependent Claim
31 words
The magnetic valve of claim 14 wherein said means for opening said magnetic valve by a source of magnetic attraction comprises a permanent switching magnet magnetized along a center line axis.
Claim 22
Dependent Claim
51 words
The magnetic valve of claim 14 wherein said encapsulated magnet comprises a biocompatible coating and plating and said means for spacing said permanent magnet in respect to said valve seat comprises a nonferromagnetic pad secured to said permanent magnet to impart a fluid seal between said magnet and said valve seat.
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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) | 1997-11-21 | 1998-05-23 | 1998-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-21 | 2002-05-23 | 2002-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-21 | 2006-05-23 | 2006-11-22 | $7700.00 | Window Closed / Lapsed |