US5098378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of jejunal feeding
Assignee: Abbott Laboratories
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Filing: 1991-07-19
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Granted: 1992-03-24
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Expires: 2011-07-19
Abstract
Abstract A replacement gastrostomy tube device is provided comprising a catheter shaft having an outer surface wall, with the shaft enclosing a feeding lumen of substantially circular cross-section and a fluid flow channel. A port housing is located at the proximal end of the shaft with the port housing having a main food inlet port, a Y-port and a fluid inlet port. Near the distal end of the tube are an expandable component member and a food outlet port, which port is preferably located at the distal end. The feeding lumen is of a greater diameter than that of the fluid flow channel. The outer surface wall is of a non-circular cross-section. The feeding lumen is of a circular cross-section which permits the passage therethrough of a jejunal tube. The main food inlet port is of a greater diameter than that associated with the Y-port. The method for using this device permits jejunal feeding through a replacement gastrostomy tube without retraumatizing the patient.
Inventors
- 👤 Carl J. Piontek
- 👤 Kent E. Iversen
- 👤 William H. Hirsch
- 👤 Arthur A. Dahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:33
CPC Classifications
A; A61; A61J; A61J15/00; A61J15/0015; A61J15/0026; A61J15/003; A61J15/0034; A61J15/0038; A61J15/0042; A61J15/0069; A61J15/0073; A61J15/0053; A61J15/0061; A61M; A61M25/00; A61M25/01; A61M25/02; A61M2025/0213; A61M2025/0233
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
288 words
A method for jejunal feeding, comprising the steps of: (a) inserting a replacement gastrostomy tube through a stoma and into a patient's stomach, said replacement gastrostomy tube comprising (i) a catheter shaft, said shaft having a wall with an outer surface, a proximal end and a distal end, said shaft enclosing a feeding lumen having a circular cross-section, and a fluid flow channel embedded within the wall of the shaft, the inside diameter of the feeding lumen being 64% to 72% of the outside diameter of the catheter shaft, a food outlet port of said lumen located at the distal end of said catheter shaft, (ii) a port housing located at said proximal end of the catheter shaft, said port housing having a main food inlet port which communicates with said feeding lumen, a Y-port providing access to said feeding lumen through a Y-port channel, and a fluid inlet port which communicates with said fluid flow channel, (iii) an expandable a component member which is expandable when a fluid is injected therein is secured to the outer surface of said shaft wall with said fluid flow channel opening into the expandable component member, said expandable component member being located between said food outlet port and said port and said port housing, (iv) a retention device located between said expandable component member and said port housing; (b) injecting a fluid into said expandable component member, such that said expandable component member cooperates with said retention device to prevent the undesirable movement of said gastrostomy tube further into the stomach or the unintentional withdrawal of said gastrostomy tube through said stoma; and (c) passing a jejunal tube through the feeding lumen of said replacement gastrostomy tube and into the jejunum.
Claim 2
Independent Claim
288 words
A method for jejunal feeding, comprising the steps of: (a) inserting a replacement gastrostomy tube through a stoma and into a patient's stomach, said replacement gastrostomy tube comprising (i) a catheter shaft, said shaft having a wall with an outer surface, a proximal end and a distal end, said shaft enclosing a feeding lumen having a circular cross-section, and a fluid flow channel embedded within the wall of the shaft, the inside diameter of the feeding lumen being 64% to 72% of the outside diameter of the catheter shaft, a food outlet port of said lumen located at the distal end of said catheter shaft, (ii) a port housing located at said proximal end of the catheter shaft, said port housing having a main food inlet port which communicates with said feeding lumen, a Y-port providing access to said feeding lumen through a Y-port channel, and a fluid inlet port which communicates with said fluid flow channel, (iii) an expandable a component member which is expandable when a fluid is injected therein is secured to the outer surface of said shaft wall with said fluid flow channel opening into the expandable component member, said expandable component member being located between said food outlet port and said port and said port housing, (iv) a retention device located between said expandable component member and said port housing; (b) injecting a fluid into said expandable component member, such that said expandable component member cooperates with said retention device to prevent the undesirable movement of said gastrostomy tube further into the stomach or the unintentional withdrawal of said gastrostomy tube through said stoma; and (c) passing a jejunal tube through the feeding lumen of said replacement gastrostomy tube and into the jejunum.
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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) | 1995-03-24 | 1995-09-23 | 1996-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-24 | 1999-09-23 | 2000-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-24 | 2003-09-23 | 2004-03-24 | $7700.00 | Window Closed / Lapsed |