US3726283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Body-retained catheter
Assignee: Kendall Co
•
Filing: 1971-10-07
•
Granted: 1973-04-10
•
Expires: 1991-10-07
Abstract
Abstract An improved Foley-type catheter which is inflated through the drainage lumen. One-way valves separating both the retention balloon and the drainage lumen eyes from the drainage lumen permit a permanent, flexible and unobstructed construction of the catheter which thus lacks side arms and separate inflation lumen. An alternative arrangement provides for both inflation and deflation of the balloon through both the drainage lumen and a short passageway in the distal end of the catheter.
Inventors
- 👤 J Dye
- 👤 W Binard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:26
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0067; A61M25/0068; A61M25/0069; A61M25/0074; A61M25/0075; A61M25/01; A61M25/09; A61M25/09016; A61M25/09025; A61M25/10; A61M2025/0076
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
151 words
In a flexible body cavity liquid drainage device having a proximal end, a distal end, at least one drainage eye in said distal end for draining the cavity, a liquid drainage lumen extending from said eye to said proximal end, and inflatable retaining means longitudinally spaced from said eye for retaining said distal end within the body cavity; the improvement further comprising means for inflating said retaining means by fluid flowing through said lumen from said proximal end, said inflating means including means secured to said device adjacent the distal end for blocking fluid flow out through said eye and said distal end from said lumen, said inflating means permitting unobstructed fluid flow through said lumen from said proximal end to said retaining means during said inflating, whereby said inflating means can be inflated through said drainage lumen free of undesired internal constrictions even when inserted into substantially non-linear body ducts.
Claim 2
Dependent Claim
151 words
In a flexible body cavity liquid drainage device having a proximal end, a distal end, at least one drainage eye in said distal end for draining the cavity, a liquid drainage lumen extending from said eye to said proximal end, and inflatable retaining means longitudinally spaced from said eye for retaining said distal end within the body cavity; the improvement further comprising means for inflating said retaining means by fluid flowing through said lumen from said proximal end, said inflating means including means secured to said device adjacent the distal end for blocking fluid flow out through said eye and said distal end from said lumen, said inflating means permitting unobstructed fluid flow through said lumen from said proximal end to said retaining means during said inflating, whereby said inflating means can be inflated through said drainage lumen free of undesired internal constrictions even when inserted into substantially non-linear body ducts.
Claim 3
Dependent Claim
20 words
The improved drainage device as defined in claim 1, wherein said blocking means is permanently retained within said distal end.
Claim 4
Dependent Claim
42 words
The improved drainage device as defined in claim 1, wherein said blocking means includes a one-way valve positioned adjacent to said eye, said valve permitting flow into said lumen through said eye from outside said device but not in the reverse direction.
Claim 5
Dependent Claim
22 words
The improved drainage device as defined in claim 1, wherein said blocking means comprises an external temporary shield overlying said drainage eye.
Claim 6
Dependent Claim
69 words
The improved drainage device as defined in claim 1, wherein said blocking means includes a soluble pluglike member mounted so as to temporarily block fluid flow through said eye, said member being especially adapted to dissolve after a period of time by the fluids coming into contact with said blocking means, said period being at least sufficient to permit injection of fluid into said retaining means through said lumen.
Claim 7
Dependent Claim
33 words
The improved drainage device as defined in claim 1, wherein said inflating means includes further means for blocking fluid flowing from said retaining means to said lumen, and for overriding said blocking means.
Claim 8
Dependent Claim
72 words
The improved drainage device as defined in claim 6, wherein said further blocking means includes a oneway flap valve operatively positioned between said lumen and said retaining means, and wherein said inflating means includes an opening in the wall of said device fluidly connecting said lumen with said retaining means, said valve being attached to the exterior surface of said wall at a position longitudinally displaced along said device from said opening.
Claim 9
Dependent Claim
44 words
The improved drainage device as defined in claim 7, wherein said overriding means includes at least a portion of said walL being formed of a flexible elastomeric material, whereby said opening can be altered in shape so as to extend beyond said flap valve.
Claim 10
Dependent Claim
37 words
The improved drainage device as defined in claim 1, and further including an interspace formed in the wall defining said drainage lumen and wherein said wall is characterized by a tubular shape lacking in side arm protrusions.
Claim 11
Dependent Claim
28 words
The improved drainage device as defined in claim 9, wherein said interspace is closed at one end and fluidly connected to said retaining means at its other end.
Claim 12
Dependent Claim
52 words
The improved drainage device as defined in claim 9, wherein said interspace is fluidly connected to said retaining means at one end and to a container at its other end, said container being mounted at the proximal end of said device, and further including means for temporarily restraining said container from filling.
Claim 13
Dependent Claim
58 words
The improved drainage device as defined in claim 11, wherein said container is inflatable and is concentrically mounted with respect to said interspace, said container having an inflatable surface area which exceeds that of said retaining means, whereby in the absence of said restraining means substantially all of the fluid in said retaining means drains into said container.
Claim 14
Dependent Claim
55 words
The improved drainage device as defined in claim 1, wherein said inflating means includes, in the wall of said device defining sad drainage lumen, a passageway extending from the extreme distal end of said device to said retaining means, and a one-way valve in said extreme end permitting only controlled fluid flow in said passageway.
Claim 15
Dependent Claim
69 words
The improved drainage device as defined in claim 13, wherein said wall is formed of flexible, elastomeric material, and wherein said valve is a slit fluidly connecting said drainage lumen with said passageway, the location of said slit in the distal end and the flexibility of said walls causing said slit to be closed except when longitudinal pressure is applied to said distal end from inside said drainage lumen.
Claim 16
Dependent Claim
39 words
The improved drainage device as defined in claim 14, wherein said drainage lumen is sufficiently large to accommodate a stylet and wherein said slit is shaped so as to open when the stylet is pushed against said distal end.
Claim 17
Dependent Claim
52 words
The improved drainage device as defined in claim 1, wherein said drainage lumen is the only lumen within the walls of said device, whereby the diameter of said lumen can be maximized to the fullest extent permitted by the dimensions of the body duct into which said device is to be inserted.
Claim 18
Dependent Claim
39 words
The improved drainage device as defined in claim 2, wherein said blocking means comprises an invertible film movable upon application of suction to said lumen to an inverted position removed in a proximal direction from its eye blocking position.
References Cited (Backward Citations)
US3402717A
Cited
US3402718A
Cited
US3482576A
Cited
US3460541A
Cited
US3565079A
Cited
US3575658A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |