US3954110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retention catheter with bilobate balloon
Assignee: Individual
•
Filing: 1974-01-24
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Granted: 1976-05-04
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Expires: 1994-01-24
Abstract
Abstract A retention catheter, particularly adapted for draining a bodily viscus or cavity, has a bilobated balloon disposed to enclose the distal tip and a pair of opposed drainage eyes retracted from the distal end, the eyes opening through the exteriorly mounted balloon into the drainage lumen. When suitably inflated, the catheter assumes the correct position to enable continuously complete drainage of the cavity from its lowermost portion. A reinforced tip permits use of a wire guide for catheter insertion when this is needed in difficult situations.
Inventors
- 👤 Ernest L. Hutchison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:28
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1002
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
173 words
A flexible balloon type closed-end catheter comprising an elongate tubular body portion defining a drainage lumen, an elastic inflatable smooth-surface thimble-shaped balloon sheathed over the distal end portion of said body portion, a pair of diametrically opposed eyes apertured through the wall of said tubular body portion, said eyes being disposed adjacent to the proximal marginal portion of said thimble-shaped balloon and extending distally therebeyond, said balloon having a pair of diametrically opposed openings in registration with said eyes and said balloon being attached to the body portion at the distal tip and hermatically sealed along the proximal margin thereof to the body portion including the marginal portions along said balloon openings, and a coextensive tubular inflation lumen within said tubular body portion in communication with said balloon through an aperture in the wall of said body portion, said balloon defining a bilobate configuration in response to delivery therein of an inflation fluid through said inflation lumen, each lobe of the balloon distending symmetrically outwardly from the eyes to assure unobstructed access thereto.
Claim 2
Dependent Claim
173 words
A flexible balloon type closed-end catheter comprising an elongate tubular body portion defining a drainage lumen, an elastic inflatable smooth-surface thimble-shaped balloon sheathed over the distal end portion of said body portion, a pair of diametrically opposed eyes apertured through the wall of said tubular body portion, said eyes being disposed adjacent to the proximal marginal portion of said thimble-shaped balloon and extending distally therebeyond, said balloon having a pair of diametrically opposed openings in registration with said eyes and said balloon being attached to the body portion at the distal tip and hermatically sealed along the proximal margin thereof to the body portion including the marginal portions along said balloon openings, and a coextensive tubular inflation lumen within said tubular body portion in communication with said balloon through an aperture in the wall of said body portion, said balloon defining a bilobate configuration in response to delivery therein of an inflation fluid through said inflation lumen, each lobe of the balloon distending symmetrically outwardly from the eyes to assure unobstructed access thereto.
Claim 3
Dependent Claim
187 words
A retention catheter comprising an elongate tubular body portion defining a drainage lumen, an elastic inflatable smooth-surface thimble-shaped balloon sheathed over the distal end of said body portion, a pair of diametrically opposed drainage eyes apertured through the wall of said body portion and extending distally beyond the proximal marginal portion of said balloon, a tubular inflation lumen coextensive with said drainage lumen in communication with said balloon through an aperture in the wall of said tubular body portion, and means effective to form a pair of indentation channels extending outwardly from said drainage eyes and inwardly along the underside of said balloon concomitant with the delivery of a predetermined quantity of fluid into said balloon, said indentation channels dividing the balloon into a pair of opposed lobes merging coextensively with the distal end of said body portion, said means including a pair of openings in said balloon extending distally from the proximal margin of said thimble-shaped balloon in registration with the drainage eyes and hermatically sealing means joining the proximal marginal portion of the balloon along the entire periphery thereof to the abutting tubular body portion.
Claim 4
Dependent Claim
187 words
A retention catheter comprising an elongate tubular body portion defining a drainage lumen, an elastic inflatable smooth-surface thimble-shaped balloon sheathed over the distal end of said body portion, a pair of diametrically opposed drainage eyes apertured through the wall of said body portion and extending distally beyond the proximal marginal portion of said balloon, a tubular inflation lumen coextensive with said drainage lumen in communication with said balloon through an aperture in the wall of said tubular body portion, and means effective to form a pair of indentation channels extending outwardly from said drainage eyes and inwardly along the underside of said balloon concomitant with the delivery of a predetermined quantity of fluid into said balloon, said indentation channels dividing the balloon into a pair of opposed lobes merging coextensively with the distal end of said body portion, said means including a pair of openings in said balloon extending distally from the proximal margin of said thimble-shaped balloon in registration with the drainage eyes and hermatically sealing means joining the proximal marginal portion of the balloon along the entire periphery thereof to the abutting tubular body portion.
Claim 5
Independent Claim
110 words
The method of precluding the formation of a pool of liquid within the bladder of a human body which includes the steps of moving the balloon end portion of a balloon-type catheter through the associated urethra only until the first appearance of liquid at the proximal end of the catheter lumen, and distending an initially uninflated smooth-surfaced thimble-shaped balloon sheathed over the distal end portion of the catheter to an inflated symmetrical bilobate configuration to provide between the lobes a pair of diametrically opposed upwardly indented drainage passageways along the underside of the re-formed balloon, each passageway terminating at an associated drainage eye opening to the lumen of the catheter.
Claim 6
Independent Claim
110 words
The method of precluding the formation of a pool of liquid within the bladder of a human body which includes the steps of moving the balloon end portion of a balloon-type catheter through the associated urethra only until the first appearance of liquid at the proximal end of the catheter lumen, and distending an initially uninflated smooth-surfaced thimble-shaped balloon sheathed over the distal end portion of the catheter to an inflated symmetrical bilobate configuration to provide between the lobes a pair of diametrically opposed upwardly indented drainage passageways along the underside of the re-formed balloon, each passageway terminating at an associated drainage eye opening to the lumen of the catheter.
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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) | 1979-05-04 | 1979-11-03 | 1980-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-04 | 1983-11-03 | 1984-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-04 | 1987-11-03 | 1988-05-04 | $7700.00 | Window Closed / Lapsed |