US5295979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Urinary catheter and system
Assignee: P&D MEDICAL COATINGS Inc A CORP OF PENNSYLVANIA
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Filing: 1992-03-27
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Granted: 1994-03-22
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Expires: 2012-03-27
Abstract
Abstract A urinary catheter and system includes a catheter with a drain lumen which is coated with oligodynamic metal and preferably arranged with a coating of a more noble metal for creating an iontophoretic galvanic couple, which drives antimicrobial ions into solution. The exterior of the catheter is also coated in a similar manner to inhibit microbes migrating toward the bladder along the outer surface of the catheter. The system includes a flow rate control device which may be a one-way valve, a filter or both. A collection bag is coupled to the control device. The interconnecting hoses, the flow rate control device(s) and the collection bag are also coated on the interior with oligodynamic metal, preferably silver, and also with a more noble metal, preferably platinum.
Inventors
- 👤 Mark DeLaurentis
- 👤 Kambiz Pourrezaei
- 👤 Raymond L. Boxman
- 👤 Richard B. Beard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:01
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0017; A61L; A61L29/00; A61L29/08; A61L29/10; A61L29/106
Claims Analysis
Total Claims: 45
Claim 1
Independent Claim
83 words
A catheter defining inner and outer surfaces and distal and proximal ends, said catheter comprising: a smooth, flat continuous layer of a first metal extending over at least one of said inner and outer surfaces, said continuous layer of first metal extending from a point on said catheter to said distal end, said layer underlying a discontinuous smooth, flat layer of a second metal, dissimilar to said first metal, to thereby form contiguous exposed flat patches of said first and second dissimilar metals.
Claim 2
Dependent Claim
83 words
A catheter defining inner and outer surfaces and distal and proximal ends, said catheter comprising: a smooth, flat continuous layer of a first metal extending over at least one of said inner and outer surfaces, said continuous layer of first metal extending from a point on said catheter to said distal end, said layer underlying a discontinuous smooth, flat layer of a second metal, dissimilar to said first metal, to thereby form contiguous exposed flat patches of said first and second dissimilar metals.
Claim 3
Dependent Claim
22 words
A catheter according to claim 1 wherein said continuous layer of first metal extends over both of said inner and outer surfaces.
Claim 4
Dependent Claim
14 words
A catheter according to claim 1, wherein said first metal is an oligodynamic metal.
Claim 5
Dependent Claim
17 words
A catheter according to claim 3, wherein said second metal is more noble than said oligodynamic metal.
Claim 6
Dependent Claim
24 words
A catheter according to claim 1 wherein said catheter defines a longitudinal axis, and said patches are in the shape of coaxial annular rings.
Claim 7
Dependent Claim
15 words
A catheter according to claim 1 wherein said patches are in the shape of dots.
Claim 8
Dependent Claim
36 words
A catheter according to claim 1, wherein said patches are dimensioned so that at least portions of three mutually adjacent patches can occupy a region which, when said catheter is in use, lies within a urethra.
Claim 9
Dependent Claim
36 words
A catheter according to claim 1, further including a flow restriction device coupled to the proximal end of said catheter, and a container coupled to the end of said flow restriction device remote from said catheter.
Claim 10
Dependent Claim
25 words
A catheter according to claim 8, wherein at least one of said flow restriction device and said container include interior surfaces with exposed dissimilar metals.
Claim 11
Dependent Claim
57 words
A catheter according to claim 9, wherein said container is fabricated from a translucent or transparent polymer material, and said dissimilar metals form a coating on a first portion of said interior surfaces of said container, whereby a second portion of said translucent or transparent polymer material forms a window for viewing the contents of said container.
Claim 12
Dependent Claim
49 words
A catheter according to claim 9 wherein at least one of said dissimilar metals coats a portion of said interior surface of said container in a pattern comprising scale markings indicative of the volume of liquid contained in the container when the liquid level is at a scale marking.
Claim 13
Dependent Claim
27 words
A catheter according to claim 9, wherein said dissimilar metals associated with said container include an oligodynamic metal and a metal more noble than said oligodynamic metal.
Claim 14
Dependent Claim
22 words
A catheter according to claim 9 wherein both said flow restriction device and said container include interior surfaces with exposed dissimilar metals.
Claim 15
Dependent Claim
29 words
A catheter according to claim 13, wherein said dissimilar metals associated with said flow restriction device include an oligodynamic metal and a metal more noble than said oligodynamic metal.
Claim 16
Dependent Claim
21 words
A catheter according to claim 8, wherein said flow restriction device includes a filter, including filter elements of mutually dissimilar metals.
Claim 17
Dependent Claim
27 words
A catheter according to claim 15, wherein said dissimilar metals associated with said filter include an oligodynamic metal and a metal more noble than said oligodynamic metal.
Claim 18
Dependent Claim
25 words
A catheter according to claim 8, wherein said flow restriction device includes a one-way valve, which one-way valve includes interior surfaces with exposed dissimilar metals.
Claim 19
Dependent Claim
205 words
A urinary catheter arrangement, comprising: a catheter including a distal end, a proximal end, and inner and outer surfaces, said catheter including a continuous layer of a first metal extending over at least one of said inner and outer surfaces, said continuous layer of first metal extending from a point on said catheter to said distal end, said laxer of first metal underlying a discontinuous layer of a second, dissimilar metal to thereby define contiguous exposed patches of said first and second dissimilar metals; a flow restriction device including an input port and an output port, the exposed interior surfaces of which flow restriction device include an oligodynamic metal; a container including at least an input port, the exposed interior surfaces of which container include an oligodynamic metal; first flow coupling means coupled to said proximal end of said catheter and to said input port of said flow restriction device for allowing flow therebetween, said first flow coupling means including exposed interior surfaces of oligodynamic metal; and second flow coupling means coupled to said output port of said flow restriction device and to said input port of said container for allowing flow therebetween, said second flow coupling means including exposed interior surfaces of oligodynamic metal.
Claim 20
Dependent Claim
205 words
A urinary catheter arrangement, comprising: a catheter including a distal end, a proximal end, and inner and outer surfaces, said catheter including a continuous layer of a first metal extending over at least one of said inner and outer surfaces, said continuous layer of first metal extending from a point on said catheter to said distal end, said laxer of first metal underlying a discontinuous layer of a second, dissimilar metal to thereby define contiguous exposed patches of said first and second dissimilar metals; a flow restriction device including an input port and an output port, the exposed interior surfaces of which flow restriction device include an oligodynamic metal; a container including at least an input port, the exposed interior surfaces of which container include an oligodynamic metal; first flow coupling means coupled to said proximal end of said catheter and to said input port of said flow restriction device for allowing flow therebetween, said first flow coupling means including exposed interior surfaces of oligodynamic metal; and second flow coupling means coupled to said output port of said flow restriction device and to said input port of said container for allowing flow therebetween, said second flow coupling means including exposed interior surfaces of oligodynamic metal.
Claim 21
Dependent Claim
32 words
A catheter according to claim 18, wherein at least one of said flow restriction device and said container include interior surfaces with exposed dissimilar metals, one of which is said oligodynamic metal.
Claim 22
Dependent Claim
23 words
A catheter according to claim 19, wherein the other one of said dissimilar metals is a metal more noble than said oligodynamic metal.
Claim 23
Dependent Claim
22 words
A catheter according to claim 19, wherein both said flow restriction device and said container include interior surfaces with exposed dissimilar metals.
Claim 24
Dependent Claim
33 words
A catheter according to claim 21, wherein said dissimilar metals associated with both said flow restriction device and said container include said oligodynamic metal and a metal more noble than said oligodynamic metal.
Claim 25
Dependent Claim
21 words
A catheter according to claim 18, wherein said flow restriction device includes a filter, including filter elements of mutually dissimilar metals.
Claim 26
Dependent Claim
25 words
A catheter according to claim 18, wherein said flow restriction device includes a one-way valve, which one-way valve includes interior surfaces with exposed dissimilar metals.
Claim 27
Dependent Claim
28 words
A catheter according to claim 24, wherein said dissimilar metals associated with said one-way valve include an oligodynamic metal and a metal more noble than said oligodynamic metal.
Claim 28
Dependent Claim
109 words
A urine collection container arrangement, comprising: a container including deformable walls defining inner and outer surfaces, and also including input and drain orifices; a layer of a first metal extending over a portion of said inner surface of said container; a layer of a second metal, dissimilar to said first metal, extending over a portion of said layer of a first metal on said inner surface of said container, whereby said second metal is exposed to the inside of said container, and said first metal is exposed in those regions not covered by said second metal said first and second layers of metal being in physical and electrical contact.
Claim 29
Dependent Claim
109 words
A urine collection container arrangement, comprising: a container including deformable walls defining inner and outer surfaces, and also including input and drain orifices; a layer of a first metal extending over a portion of said inner surface of said container; a layer of a second metal, dissimilar to said first metal, extending over a portion of said layer of a first metal on said inner surface of said container, whereby said second metal is exposed to the inside of said container, and said first metal is exposed in those regions not covered by said second metal said first and second layers of metal being in physical and electrical contact.
Claim 30
Dependent Claim
14 words
A container according to claim 26, wherein said first metal is an oligodynamic metal.
Claim 31
Dependent Claim
17 words
A container according to claim 27, wherein said second metal is more noble than said oligodynamic metal.
Claim 32
Dependent Claim
62 words
A container according to claim 26, wherein said deformable walls of said container are fabricated from a translucent or transparent polymer material, and said dissimilar metals together form a coating on a first portion of said interior surfaces of said container, whereby a second portion of said translucent or transparent polymer material forms a window for viewing the contents of said container.
Claim 33
Dependent Claim
53 words
A container according to claim 29 wherein at least one of said dissimilar metals coats a portion of said second portion of said interior surfaces of said container in a pattern comprising scale markings indicative of the volume of liquid contained in the container when the liquid level is at a scale marking.
Claim 34
Dependent Claim
79 words
A container arrangement according to claim 26, further including a catheter defining inner and outer surfaces and distal and proximal ends, said catheter comprising: a continuous layer of metal extending over at least one of said inner and outer surfaces, said continuous layer of metal extending from a point on said catheter to said distal end, said layer containing contiguous exposed flat patches, each of said exposed flat patches including at least one of first and second dissimilar metals.
Claim 35
Dependent Claim
21 words
An arrangement according to claim 31, wherein said continuous layer of metal extends over both of said inner and outer surfaces.
Claim 36
Dependent Claim
14 words
An arrangement according to claim 32, wherein said first metal is an oligodynamic metal.
Claim 37
Dependent Claim
17 words
An arrangement according to claim 33, wherein said second metal is more noble than said oligodynamic metal.
Claim 38
Dependent Claim
16 words
An arrangement according to claim 31, wherein said patches are in the shape of annular rings.
Claim 39
Dependent Claim
15 words
An arrangement according to claim 31 wherein said patches are in the shape of dots.
Claim 40
Dependent Claim
36 words
An arrangement according to claim 31, wherein said patches are dimensioned so that at least portions of three mutually adjacent patches can occupy a region which, when said catheter is in use, lies within a urethra.
Claim 41
Dependent Claim
28 words
An arrangement according to claim 31, further including a flow restriction device coupled between said the proximal end of said catheter and said input port of said container.
Claim 42
Dependent Claim
18 words
An arrangement according to claim 38, wherein said flow restriction device includes interior surfaces with exposed dissimilar metals.
Claim 43
Dependent Claim
29 words
An arrangement according to claim 39, wherein said dissimilar metals associated with said flow restriction device include an oligodynamic metal and a metal more noble than said oligodynamic metal.
Claim 44
Dependent Claim
21 words
An arrangement according to claim 38, wherein said flow restriction device includes a filter, including filter elements of mutually dissimilar metals.
Claim 45
Dependent Claim
25 words
An arrangement according to claim 38, wherein said flow restriction device includes a one-way valve, which one-way valve includes interior surfaces with exposed dissimilar metals.
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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) | 1997-03-21 | 1997-09-20 | 1998-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-03-21 | 2001-09-20 | 2002-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-03-21 | 2005-09-20 | 2006-03-22 | $7700.00 | Window Closed / Lapsed |