Patent US4909785A successfully refreshed from Google Patents.
US4909785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for valving body fluids
Assignee: WPAMS ACQUISITION CORP
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Filing: 1988-11-02
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Granted: 1990-03-20
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Expires: 2008-11-02
Abstract
Abstract A method and apparatus for valving body fluids involving a flexible tubular body with a drainage canal therethrough, including collapsible means for blocking the passageway and thereby preventing the flow of urine. The length of the device is such that one end protrudes into the bladder and the other end terminates interior of the meatus. The device includes a means for anchoring to secure it in place and a plug device for deflating and releasing the anchoring means and for collapsing the blocking means to facilitate removal of the device from the body. The device is manually actuable to an open position and means are provided to delay the closing of the device for a sufficient period of time to allow voiding of the bladder. The collapsible and expandable nature of the device facilitates its insertion and removal, particularly while passing through areas of restricted diameter.
Inventors
- 👤 John H. Burton
- 👤 Eric P. Berg
- 👤 Bradford G. Staehle
- 👤 Frank B. Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:58
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0067; A61M25/0074; A61M25/0075; A61F; A61F2/00; A61F2/0004; A61F2/0022; A61F2/0027; A61M25/10; A61M25/1011
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
74 words
A method for achieving urinary continence, comprising the steps of: inserting a collapsible valving member into a first position in the urethra proximate the bladder, the valving member including means for directing urine flow from the bladder through an expanding valve; expanding said valve outwardly when said valving member is in said first position so as to substantially halt the flow of urine from the bladder; and selectively contracting said valve to allow urination.
Claim 2
Independent Claim
74 words
A method for achieving urinary continence, comprising the steps of: inserting a collapsible valving member into a first position in the urethra proximate the bladder, the valving member including means for directing urine flow from the bladder through an expanding valve; expanding said valve outwardly when said valving member is in said first position so as to substantially halt the flow of urine from the bladder; and selectively contracting said valve to allow urination.
Claim 3
Dependent Claim
23 words
The method of claim 1 wherein the step of contracting said valving member includes the step of ducting fluid to a holding reservoir.
Claim 4
Dependent Claim
20 words
The method of claim 1, including the step of allowing said valving member to gradually expand after being selectively contracted.
Claim 5
Dependent Claim
23 words
The method of claim 1, including the step of inserting said valving member such that said member is spaced inwardly from the meatus.
Claim 6
Dependent Claim
27 words
The method of claim 1, including the step of anchoring said member in said first position by inflating a cuff, connected to said member, in the bladder.
Claim 7
Dependent Claim
22 words
The method of claim 5, including the step of removing said member by removing a plug and allowing said cuff to deflate.
Claim 8
Dependent Claim
30 words
The method of claim 1, including the steps of providing a sheath surrounding said valving member and expanding said member until said sheath limits the further expansion of said member.
Claim 9
Independent Claim
129 words
A method for achieving urinary continence, comprising the steps of: collapsing a valve member from its normal shape for insertion through areas of restricted diameter, the valve member being coupled to a longitudinal body having a flow passage; inserting said valve member and said body into a position in the urethra proximate the bladder, the body protruding into the bladder; allowing an outer portion of said valve member to automatically expand to its normal shape to increase the flow area therethrough; expanding an inner portion of said valve member against the outer portion so as to substantially halt the flow of urine through the flow passage; and selectively compressing said inner portion of said valve member to allow the flow of urine from the bladder through the flow passage.
Claim 10
Independent Claim
129 words
A method for achieving urinary continence, comprising the steps of: collapsing a valve member from its normal shape for insertion through areas of restricted diameter, the valve member being coupled to a longitudinal body having a flow passage; inserting said valve member and said body into a position in the urethra proximate the bladder, the body protruding into the bladder; allowing an outer portion of said valve member to automatically expand to its normal shape to increase the flow area therethrough; expanding an inner portion of said valve member against the outer portion so as to substantially halt the flow of urine through the flow passage; and selectively compressing said inner portion of said valve member to allow the flow of urine from the bladder through the flow passage.
Claim 11
Dependent Claim
32 words
The method of claim 8, wherein said step of selectively compressing comprises the step of: palpating said valve member to its normal shape to allow the flow of urine past said member.
Claim 12
Dependent Claim
17 words
The method of claim 8 further comprising the step of: automatically re-expanding said valve member after urination.
Claim 13
Dependent Claim
17 words
The method of claim 8, wherein said step of selectively compressing is accomplished from outside the urethra.
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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) | 1993-03-19 | 1993-09-18 | 1994-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-19 | 1997-09-18 | 1998-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-19 | 2001-09-18 | 2002-03-20 | $7700.00 | Window Closed / Lapsed |