Patent US4723950A successfully refreshed from Google Patents.
US4723950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Urine drainage bag outlet with barrier against microbial infection
Assignee: CR Bard Inc
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Filing: 1987-02-20
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Granted: 1988-02-09
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Expires: 2007-02-20
Abstract
Abstract A urine drainage bag having an outlet tube housing a microcidal tube is disclosed. The microcidal tube is manufactured from polymeric materials capable of absorbing and releasing antimicrobial substances in a controllable sustained time release mechanism, activated upon contact with droplets of urine, thereby preventing the retrograde migration of infectious organisms into the drainage bag.
Inventors
- 👤 Clarence C. Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:12
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/44; A61F5/441; A61M; A61M1/00; A61M1/88; A61M1/882
Claims Analysis
Total Claims: 59
Claim 1
Independent Claim
127 words
An outlet for a urine drainage bag, comprising: an outlet tube secured to the bottom part of the urine drainage bag; and an independently formed microbicidal tube housed in and connected to the interior of the outlet tube, comprising means for storing and means for releasing one or more microbicidal substances, said means for storing the microbicidal substance/s being a porous material, said means of releasing the microbicidal substance/s being a hydrophilic polymer which in response to contact with urine swells causing the leaching out of the microbicidal substance, said microbicidal substance capable of being passively and controllably released in a long term sustained time sequence without human intervention to create an effective barrier against movement and multiplication or organisms and subsequent infection of the urinary tract.
Claim 2
Dependent Claim
127 words
An outlet for a urine drainage bag, comprising: an outlet tube secured to the bottom part of the urine drainage bag; and an independently formed microbicidal tube housed in and connected to the interior of the outlet tube, comprising means for storing and means for releasing one or more microbicidal substances, said means for storing the microbicidal substance/s being a porous material, said means of releasing the microbicidal substance/s being a hydrophilic polymer which in response to contact with urine swells causing the leaching out of the microbicidal substance, said microbicidal substance capable of being passively and controllably released in a long term sustained time sequence without human intervention to create an effective barrier against movement and multiplication or organisms and subsequent infection of the urinary tract.
Claim 3
Dependent Claim
19 words
The outlet according to claim 1 wherein the means of storing the microbicidal substance/s is a porous polypropylene material.
Claim 4
Dependent Claim
15 words
The outlet according to claim 1 wherein the hydrophylic polymer is D-3 polyethylene glycol polyurethane.
Claim 5
Dependent Claim
15 words
The outlet according to claim 1 wherein the microbicidal substances are hexachlorophene, gentamycin and clotrimazol.
Claim 6
Dependent Claim
15 words
The outlet according to claim 1 wherein the microbicidal substances are triclosan, chloroxin and tolnaftate.
Claim 7
Dependent Claim
15 words
The outlet according to claim 1 wherein the microbicidal substances are nalidixic acid and parachlorometaxylenol.
Claim 8
Dependent Claim
15 words
The outlet according to claim 1 wherein the microbicidal substances are zinc pyrithione and tetracycline.
Claim 9
Dependent Claim
15 words
The outlet according to claim 1 wherein the microbicidal substances are gentamycin and zinc pyrithione.
Claim 10
Dependent Claim
16 words
The outlet according to claim 1 wherein the microbicidal substances are tetracycline polymyxin and zinc pyrithione.
Claim 11
Dependent Claim
14 words
The outlet according to claim 1 wherein the microbicidal substances are gentamycin and parachlorometaxylenol.
Claim 12
Dependent Claim
16 words
The outlet according to claim 1 wherein the microbicidal substances are tetracycline, parachlorometaxylenol, clotrimazol and tolnaftate.
Claim 13
Dependent Claim
14 words
The outlet according to claim 1 wherein the microbicidal substances are triclosan and chloroxin.
Claim 14
Dependent Claim
14 words
The outlet according to claim 1 wherein the microbicidal substances are chlordexidine and triclosan.
Claim 15
Dependent Claim
18 words
The outlet according to claim 1 wherein the microbicidal substances are chloroform, hexachlorophene, nalidixic acid, clotrimazol and tolnaftate.
Claim 16
Dependent Claim
15 words
The outlet according to claim 1 wherein the microbicidal substances are parachlorometaxylenol, chlorhexidine and nitrofurazone.
Claim 17
Dependent Claim
15 words
The outlet according to claim 1 wherein the microbicidal substances are hexachlorophane, clotrimazol and aminacrine.
Claim 18
Dependent Claim
14 words
The outlet according to claim 1 wherein the microbicidal substances are hexachlorophene, and clotrimazol.
Claim 19
Dependent Claim
16 words
The outlet according to claim 1 wherein the microbicidal substances are triclosan, hexachlorophene, clotrimazole and nitrofurazano.
Claim 20
Independent Claim
102 words
A method of treating the outlet tube of a urinary drainage bag to prevent passage and/or growth of microorganisms comprising: the insertion of a microbicidal tube inside the outlet tube, said microbicidal tube being porous with a hydrophilic polymer disposed throughout and containing at least one microbicidal substance, whose release is passively activated during drainage of urine, the hydrophilic polymer in response to contact with urine swells causing leaching out of the microbicidal substance, whereby it acts upon the present microorganisms without human intervention to create an effective barrier against movement and multiplication of organisms and subsequent infection of the urinary tract.
Claim 21
Independent Claim
102 words
A method of treating the outlet tube of a urinary drainage bag to prevent passage and/or growth of microorganisms comprising: the insertion of a microbicidal tube inside the outlet tube, said microbicidal tube being porous with a hydrophilic polymer disposed throughout and containing at least one microbicidal substance, whose release is passively activated during drainage of urine, the hydrophilic polymer in response to contact with urine swells causing leaching out of the microbicidal substance, whereby it acts upon the present microorganisms without human intervention to create an effective barrier against movement and multiplication of organisms and subsequent infection of the urinary tract.
Claim 22
Dependent Claim
106 words
A urinary drainage system comprising a sustained time release barrier incorporated therein, said barrier comprising means for storing and means for passively and controllably releasing at least one microbicidal substance, said means for storing the microbicidal substance/s being a porous material, said means of releasing the microbicidal substance/s being a hydrophilic polymer which in response to contact with urine swells causing the leaching out of the microbicidal substance, said microbicidal substance capable of being passively and controllably released in a long term sustained time sequence without human intervention to create an effective barrier against movement and multiplication of organisms and subsequently infection of the urinary tract.
Claim 23
Dependent Claim
106 words
A urinary drainage system comprising a sustained time release barrier incorporated therein, said barrier comprising means for storing and means for passively and controllably releasing at least one microbicidal substance, said means for storing the microbicidal substance/s being a porous material, said means of releasing the microbicidal substance/s being a hydrophilic polymer which in response to contact with urine swells causing the leaching out of the microbicidal substance, said microbicidal substance capable of being passively and controllably released in a long term sustained time sequence without human intervention to create an effective barrier against movement and multiplication of organisms and subsequently infection of the urinary tract.
Claim 24
Dependent Claim
21 words
The urinary drainage system according to claim 20 wherein the means of storing the microbicidal substance/s is a porous polypropylene material.
Claim 25
Dependent Claim
17 words
The urinary drainage system according to claim 20 wherein the hydrophilic polymer is D-3 polyethylene glycol polyurethane.
Claim 26
Dependent Claim
17 words
The urinary drainage system according to claim 20 wherein the microbicidal substances are hexachlorophene, gentamycin and clotrimazole.
Claim 27
Dependent Claim
17 words
The urinary drainage system according to claim 20 wherein the microbicidal substances are triclosan, chloroxin and tolnaftate.
Claim 28
Dependent Claim
17 words
The urinary drainage system according to claim 20 wherein the microbicidal substances are nalidixic acid and parachlorometaxylenol.
Claim 29
Dependent Claim
17 words
The urinary drainage system according to claim 20 wherein the microbicidal substances are zinc pyrithione and tetracycline.
Claim 30
Dependent Claim
17 words
The urinary drainage system according to claim 20 wherein the microbicidal substances are gentamycin and zinc pyrithione.
Claim 31
Dependent Claim
18 words
The urinary drainage system according to claim 20 wherein the microbicidal substances are tetracycline polymyxin and zinc pyrithione.
Claim 32
Dependent Claim
16 words
The urinary drainage system according to claim 20 wherein the microbicidal substances are gentamycin and parachlorometaxylenol.
Claim 33
Dependent Claim
18 words
The urinary drainage system according to claim 20 wherein the microbicidal substances are tetracycline, parachlorometaxylenol, clotrimazol and tolnaftate.
Claim 34
Dependent Claim
16 words
The urinary drainage system according to claim 20 wherein the microbicidal substances are triclosano and chloroxin.
Claim 35
Dependent Claim
16 words
The urinary drainage system according to claim 20 wherein the microbicidal substances are chlordexidine and triclosan.
Claim 36
Dependent Claim
20 words
The urinary drainage system according to claim 20 wherein the microbicidal substances are chloroform, hexachlorophene, nalidixic acid, clotrimazol and tolnaftate.
Claim 37
Dependent Claim
17 words
The urinary drainage system according to claim 20 wherein the microbicidal substances are parachlorometaxylenol, chlorhexidine and nitrofurazone.
Claim 38
Dependent Claim
17 words
The urinary drainage system according to claim 20 wherein the microbicidal substances are hexachlorophane, clotrimazol and aminacrine.
Claim 39
Dependent Claim
16 words
The urinary drainage system according to claim 20 wherein the microbicidal substances are hexachlorophene, and clotrimazol.
Claim 40
Dependent Claim
18 words
The urinary drainage system according to claim 20 wherein the microbicidal substances are triclosan, hexachlorophene, clotrimazole and nitrofurazano.
Claim 41
Dependent Claim
104 words
A microbicidal tube, comprising means for storing and means for releasing one or more antimicrobial substance/s capable of being passively and controllably released in a sustained time sequence, said means for storing the microbicidal substance/s being a porous material, said means of releasing the microbicidal substance/s being a hydrophilic polymer which in response to contact with urine swells causing the leaching out of the microbicidal substance said microbicidal substance capable of being passively and controllably released in a long term sustained time sequence without human intervention to create an effective barrier against movement and multiplication of organisms and subsequently infection of the urinary tract.
Claim 42
Dependent Claim
104 words
A microbicidal tube, comprising means for storing and means for releasing one or more antimicrobial substance/s capable of being passively and controllably released in a sustained time sequence, said means for storing the microbicidal substance/s being a porous material, said means of releasing the microbicidal substance/s being a hydrophilic polymer which in response to contact with urine swells causing the leaching out of the microbicidal substance said microbicidal substance capable of being passively and controllably released in a long term sustained time sequence without human intervention to create an effective barrier against movement and multiplication of organisms and subsequently infection of the urinary tract.
Claim 43
Dependent Claim
20 words
The microcidal tube according to claim 38, wherein the means of storing the microbicidal substance/s is a porous polypropylene material.
Claim 44
Dependent Claim
16 words
The microbicidal tube according to claim 38 wherein the hydrophilic polymer is D-3 polyethylene glycol polyurethane.
Claim 45
Dependent Claim
16 words
The microbicidal tube according to claim 38 wherein the microbicidal substances are hexachlorophene, gentamycin and clotrimazol.
Claim 46
Dependent Claim
16 words
The microbicidal tube according to claim 38 wherein the microbicidal substances are triclosan, chloroxin and tolnaftate.
Claim 47
Dependent Claim
16 words
The microbicidal tube according to claim 38 wherein the microbicidal substances are nalidixic acid and parachlorometaxylenol.
Claim 48
Dependent Claim
16 words
The microbicidal tube according to claim 38 wherein the microbicidal substances are zinc pyrithione and tetracycline.
Claim 49
Dependent Claim
16 words
The microbicidal tube according to claim 38 wherein the microbicidal substances are gentamycin and zinc pyrithione.
Claim 50
Dependent Claim
17 words
The microbicidal tube according to claim 38 wherein the microbicidal substances are tetracycline polymyxin and zinc pyrithione.
Claim 51
Dependent Claim
15 words
The microbicidal tube according to claim 38 wherein the microbicidal substances are gentamycin and parachlorometaxylenol.
Claim 52
Dependent Claim
17 words
The microbicidal tube according to claim 38 wherein the microbicidal substances are tetracycline, parachlorometaxylenol, clotrimazol and tolnaftate.
Claim 53
Dependent Claim
15 words
The microbicidal tube according to claim 38 wherein the microbicidal substances are triclosano and chloroxin.
Claim 54
Dependent Claim
15 words
The microbicidal tube according to claim 38 wherein the microbicidal substances are chlordexidine and triclosan.
Claim 55
Dependent Claim
18 words
The microbicidal tube according to claim 38 wherein the microbicidal substances are hexachlorophene, nalidixic acid, clotrimazol and tolnaftate.
Claim 56
Dependent Claim
16 words
The microbicidal tube according to claim 38 wherein the microbicidal substances are parachlorometaxylenol, chlorhexidine and nitrofurazone.
Claim 57
Dependent Claim
16 words
The microbicidal tube according to claim 38 wherein the microbicidal substances are hexachlorophane, clotrimazol and aminacrine.
Claim 58
Dependent Claim
15 words
The microbicidal tube according to claim 38 wherein the microbicidal substances are hexachlorophene, and clotrimazol.
Claim 59
Dependent Claim
17 words
The microbicidal tube according to claim 38 wherein the microbicidal substances are triclosan, hexachlorophene, clotrimazole and nitrofurazano.
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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) | 1991-02-08 | 1991-08-10 | 1992-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-08 | 1995-08-10 | 1996-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-08 | 1999-08-10 | 2000-02-09 | $7700.00 | Window Closed / Lapsed |