US4781704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feeding tube assembly with collapsible outlet connector
Assignee: Teleflex Medical LLC
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Filing: 1987-02-24
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Granted: 1988-11-01
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Expires: 2007-02-24
Abstract
Abstract An enhanced non-occluding feeding assembly for the administration or aspiration of fluids to a patient comprising a tube having an enlarged, resilient bolus near its distal end to which a weighted tip is connected is provided. The bolus defines an opening for the tube outlet minimizing occlusion or clogging of the opening. The feeding assembly provides advantageous peristaltic or stylet intubation and minimizes possibility of injury to a patient.
Inventors
- 👤 Laurence A. Potter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:01
CPC Classifications
A; A61; A61J; A61J15/00; A61J15/0003; A61J15/0026; A61J15/008; A61J15/0088; A61J2205/00; A61J2205/20
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
176 words
An enteral feeding tube of predetermined diameter for administration and aspiration of fluids within a gastrointestinal tract, said tube having a proximal end for fluid communication with a fluid nutrient source and a distal end comprising a bolus positioned at the distal end of said tube, said bolus being enlarged in a first dimension and having resilient sides defining an opening, said bolus being intersected by a first longitudinally extending plane and a second plane substantially transverse to said first plane, said first dimension being defined by said first plane, whereby said bolus is normally enlarged in said first plane and not in said second plane, said bolus having a first end in fluid communication with said tube and a terminal end, said bolus having a diameter greater than the diameter of said tube thereby increasing the flow of fluid from said fluid nutrient source during administration, said sides being collapsible upon contact with a restriction and being capable of resuming their original shape upon passing said restriction, thereby temporarily reducing the diameter of said bolus.
Claim 2
Dependent Claim
176 words
An enteral feeding tube of predetermined diameter for administration and aspiration of fluids within a gastrointestinal tract, said tube having a proximal end for fluid communication with a fluid nutrient source and a distal end comprising a bolus positioned at the distal end of said tube, said bolus being enlarged in a first dimension and having resilient sides defining an opening, said bolus being intersected by a first longitudinally extending plane and a second plane substantially transverse to said first plane, said first dimension being defined by said first plane, whereby said bolus is normally enlarged in said first plane and not in said second plane, said bolus having a first end in fluid communication with said tube and a terminal end, said bolus having a diameter greater than the diameter of said tube thereby increasing the flow of fluid from said fluid nutrient source during administration, said sides being collapsible upon contact with a restriction and being capable of resuming their original shape upon passing said restriction, thereby temporarily reducing the diameter of said bolus.
Claim 3
Dependent Claim
26 words
A feeding tube as in claim 1, wherein said terminal end of said bolus is sealed, thereby minimizing the accumulation of fluids at said terminal end.
Claim 4
Dependent Claim
13 words
A feeding tube as in claim 1 wherein said opening has beveled edges.
Claim 5
Dependent Claim
20 words
A feeding tube as in claim 1, further comprising a guide tip connected to said terminal end of said bolus.
Claim 6
Dependent Claim
13 words
A feeding tube as in claim 4, wherein said guide tip is weighted.
Claim 7
Dependent Claim
33 words
A feeding tube as in claim 4, wherein said guide tip has a diameter less than the diameter of said bolus and less than or equal to the predetermined diameter of said tube.
Claim 8
Dependent Claim
24 words
A feeding tube as in claim 4, wherein said guide tip encases cylindrical rod-like segments of a non-toxic, relatively dense and internally inert material.
Claim 9
Dependent Claim
15 words
A feeding tube as in claim 7, wherein said rod-like segments are comprised of tungsten.
Claim 10
Dependent Claim
22 words
A feeding tube as in claim 7, wherein said guide tip also encases a malleable metal material inbetween said cylindrical rod-like segments.
Claim 11
Dependent Claim
18 words
A feeding tube as in claim 4, wherein said guide tip is formed into a preset curved shape.
Claim 12
Dependent Claim
19 words
A feeding tube as in claim 1, further comprising a stylet inserted into the proximal end of said tube.
Claim 13
Dependent Claim
25 words
A feeding tube as in claim 1, further comprising an adapter at the proximal end of said tube, said adapter having at least two ports.
Claim 14
Dependent Claim
29 words
A feeding tube as in claim 12, wherein a first port is connected to the fluid nutrient source and a second port allows the instillation or irrigation of fluids.
Claim 15
Dependent Claim
157 words
A catheter of predetermined diameter for irrigation and aspiration of fluids within body cavities, said catheter having a proximal end for fluid communication with a fluid or suction source and a distal end having an outlet, said distal end comprising a bolus in fluid communication with said outlet, said bolus having resilient sides defining an opening which permits fluid flow through said outlet and said bolus from or into said body cavities, said bolus being intersected by a first longitudinally extending plane and a second plane substantially transverse to said first plane, said bolus being enlarged in a first dimension defined by said first plane and not being enlarged in a second dimension defined by said second plane, said bolus having a diameter greater than the diameter of said outlet thereby increasing the flow of fluid from said fluid nutrient source said sides being are collapsible from an original shape and reconformable back into said original shape.
Claim 16
Dependent Claim
157 words
A catheter of predetermined diameter for irrigation and aspiration of fluids within body cavities, said catheter having a proximal end for fluid communication with a fluid or suction source and a distal end having an outlet, said distal end comprising a bolus in fluid communication with said outlet, said bolus having resilient sides defining an opening which permits fluid flow through said outlet and said bolus from or into said body cavities, said bolus being intersected by a first longitudinally extending plane and a second plane substantially transverse to said first plane, said bolus being enlarged in a first dimension defined by said first plane and not being enlarged in a second dimension defined by said second plane, said bolus having a diameter greater than the diameter of said outlet thereby increasing the flow of fluid from said fluid nutrient source said sides being are collapsible from an original shape and reconformable back into said original shape.
Claim 17
Dependent Claim
16 words
A catheter as in claim 14, further comprising a weighted guide tip connected to said bolus.
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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) | 1991-11-01 | 1992-05-02 | 1992-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-01 | 1996-05-02 | 1996-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-01 | 2000-05-02 | 2000-11-01 | $7700.00 | Window Closed / Lapsed |