Patent US4490143A successfully refreshed from Google Patents.
US4490143A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feeding tube assembly
Assignee: Corpak Medsystems Inc
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Filing: 1982-09-24
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Granted: 1984-12-25
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Expires: 2002-09-24
Abstract
Abstract A feeding assembly for the administration of fluids to a patient comprising a tube having a rigid bolus near its distal end to facilitate the peristaltic movement of the assembly during insertion. The bolus has openings for fluid flow, said openings are oriented to prevent the tip of a stylet from escaping from the tube assembly to minimize the possibility of injury to a patient during stylet intubation.
Inventors
- 👤 David G. Quinn
- 👤 II Robert B. Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:03
CPC Classifications
A; A61; A61J; A61J15/00; A61J15/0003; A61J15/0007
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
188 words
A feeding assembly having a flexible tube of predetermined diameter for selective enteric administration and aspiration of fluids to and from the gastrointestinal tract of a patient, the tube having a proximal end joined to an enteric feeding bag, and a distal end, comprising in combination: a non-collapsible bolus positioned at the distal end of said tube, said bolus having a tapered frustoconical distal end and a tapered proximal end, said bolus having its largest diameter between said proximal and distal portions, said bolus having a diameter greater than the diameter of said tube, said bolus also having a first internal channel in fluid communication with said tube, said bolus possessing at least one outside opening in fluid communication with said first channel whereby said tube and said bolus can selectively accommodate fluids introduced thereto from said bag to exit said bolus for enteric feeding and through said tube and said bolus to facilitate aspiration of fluids from the gastrointestinal tract of a patient; and an elongated weighted guide tip located distal to said bolus, said guide tip having a diameter less than the diameter of said bolus.
Claim 2
Dependent Claim
188 words
A feeding assembly having a flexible tube of predetermined diameter for selective enteric administration and aspiration of fluids to and from the gastrointestinal tract of a patient, the tube having a proximal end joined to an enteric feeding bag, and a distal end, comprising in combination: a non-collapsible bolus positioned at the distal end of said tube, said bolus having a tapered frustoconical distal end and a tapered proximal end, said bolus having its largest diameter between said proximal and distal portions, said bolus having a diameter greater than the diameter of said tube, said bolus also having a first internal channel in fluid communication with said tube, said bolus possessing at least one outside opening in fluid communication with said first channel whereby said tube and said bolus can selectively accommodate fluids introduced thereto from said bag to exit said bolus for enteric feeding and through said tube and said bolus to facilitate aspiration of fluids from the gastrointestinal tract of a patient; and an elongated weighted guide tip located distal to said bolus, said guide tip having a diameter less than the diameter of said bolus.
Claim 3
Dependent Claim
42 words
The feeding assembly described in claim 1, wherein said bolus has a second internal channel transverse to and in fluid communication with said first channel, said first channel terminating in said second channel, and, said second channel having oppositely facing outside openings.
Claim 4
Dependent Claim
23 words
The feeding assembly described in claim 2, wherein the said second channel is perpendicular to and in fluid communication with said first channel.
Claim 5
Dependent Claim
27 words
The feeding assembly described in claim 1, wherein the portion of said bolus distal to said second channel is tapered to the diameter of said guide tip.
Claim 6
Dependent Claim
26 words
The feeding assembly described in claim 2, wherein the diameter of said second channel is greater than or equal to the internal diameter of said tube.
Claim 7
Dependent Claim
24 words
The feeding assembly described in claim 1, wherein said guide tip has a diameter less than or equal to the diameter of said tube.
Claim 8
Dependent Claim
24 words
The feeding assembly described in claim 1, wherein said guide tip encases cylindrical rod-like segments of a non-toxic, relatively dense and internally inert material.
Claim 9
Dependent Claim
17 words
The feeding assembly described in claim 7, wherein said guide tip encases cylindrical rod-like segments of tungsten.
Claim 10
Dependent Claim
212 words
A feeding assembly having a flexible tube of predetermined diameter for selective enteric administration and aspiration of fluids to and from the gastrointestinal tract of a patient, the tube having a proximal end joined to an enteric feeding bag, and a distal end, comprising in combination: a non-collapsible bolus positioned at the distal end of said tube, said bolus having a tapered frustoconical distal end and a tapered proximal end, said bolus having its largest diameter between said proximal and distal portions, said bolus having a diameter greater than the diameter of said tube, said bolus having a first internal channel in fluid communication with said tube, said bolus having a second internal channel extending transversely to and in fluid communication with said first channel, said first channel terminating in said second channel, said second channel having oppositely faced outside openings, said second channel having a diameter at least as large as the internal diameter of said tube, the portion of said bolus distal to said second channel being tapered to the diameter of said guide tip; and an elongated weighted guide tip located distal to said bolus, said guide tip having a diameter less than or equal to the diameter of said tube, said guide tip encasing non-toxic rod-like weighted segments.
Claim 11
Dependent Claim
212 words
A feeding assembly having a flexible tube of predetermined diameter for selective enteric administration and aspiration of fluids to and from the gastrointestinal tract of a patient, the tube having a proximal end joined to an enteric feeding bag, and a distal end, comprising in combination: a non-collapsible bolus positioned at the distal end of said tube, said bolus having a tapered frustoconical distal end and a tapered proximal end, said bolus having its largest diameter between said proximal and distal portions, said bolus having a diameter greater than the diameter of said tube, said bolus having a first internal channel in fluid communication with said tube, said bolus having a second internal channel extending transversely to and in fluid communication with said first channel, said first channel terminating in said second channel, said second channel having oppositely faced outside openings, said second channel having a diameter at least as large as the internal diameter of said tube, the portion of said bolus distal to said second channel being tapered to the diameter of said guide tip; and an elongated weighted guide tip located distal to said bolus, said guide tip having a diameter less than or equal to the diameter of said tube, said guide tip encasing non-toxic rod-like weighted segments.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-12-25 | 1988-06-25 | 1988-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-25 | 1992-06-25 | 1992-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-25 | 1996-06-25 | 1996-12-25 | $7700.00 | Window Closed / Lapsed |