US5318519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for supplying nutrition
Assignee: Individual
•
Filing: 1992-08-19
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Granted: 1994-06-07
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Expires: 2012-08-19
Abstract
Abstract A medical method for providing nutrition to a patient comprises the steps of providing a container having an inlet, an outlet and a pump at the outlet and surgically inserting the container into the abdominal cavity. The container outlet is surgically connected to a selected vein in the portal vein system so that the container communicates with the liver via the container outlet and the selected vein of the portal vein system. The pump is then operated to move a liquid nutritive composition from the container to the selected vein in the portal vein system.
Inventors
- 👤 Peter J. Wilk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:03
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/142; A61M5/14244; A61M5/14276; A61F; A61F2/00; A61F2/02; A61F2/022; A61M1/00; A61M1/14; A61M1/16; A61M1/1678; A61M27/00; A61M27/002
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
93 words
A medical method for providing nutrition to a patient, comprising the steps of: providing a container having an inlet, an outlet and a pump at said outlet; surgically inserting said container into the abdominal cavity of the patient; surgically connecting said outlet to a selected vein in the portal vein system so that said container communicates with the liver via said outlet and the selected vein of the portal vein system; and operating said pump to move a liquid nutritive composition from said container to the selected vein in the portal vein system.
Claim 2
Dependent Claim
93 words
A medical method for providing nutrition to a patient, comprising the steps of: providing a container having an inlet, an outlet and a pump at said outlet; surgically inserting said container into the abdominal cavity of the patient; surgically connecting said outlet to a selected vein in the portal vein system so that said container communicates with the liver via said outlet and the selected vein of the portal vein system; and operating said pump to move a liquid nutritive composition from said container to the selected vein in the portal vein system.
Claim 3
Dependent Claim
28 words
The method defined in claim 1, further comprising the steps of providing a port in an abdominal wall of the patient and connecting said inlet to said port.
Claim 4
Dependent Claim
27 words
The method defined in claim 2, further comprising the step of feeding a supply of liquid nutritive composition to said container via said port and said inlet.
Claim 5
Dependent Claim
36 words
The method defined in claim 1 wherein said container is provided with a power source for energizing the pump, further comprising the step of charging said power source from a power supply outside the patient's body.
Claim 6
Dependent Claim
34 words
The method defined in claim 4 wherein said step of charging includes the step of connecting said power source to said power supply via a lead extending through the abdominal wall of the patient.
Claim 7
Dependent Claim
24 words
The method defined in claim 1 wherein said step of inserting includes the step of disposing said container to rest on the pelvic rim.
Claim 8
Independent Claim
94 words
A method for obtaining nutrition, comprising the steps of: connecting, to a port provided in a person's abdominal wall, a supply of a liquid nutritive composition; moving said liquid nutritive composition from said supply through said port and through an inlet supply line in the abdominal cavity of the person to a reservoir surgically implanted in said abdominal cavity; disconnecting said supply from said port; closing said port upon disconnection of said supply therefrom; and automatically pumping an amount of said nutritive composition from said reservoir to a vein of the portal vein system.
Claim 9
Independent Claim
94 words
A method for obtaining nutrition, comprising the steps of: connecting, to a port provided in a person's abdominal wall, a supply of a liquid nutritive composition; moving said liquid nutritive composition from said supply through said port and through an inlet supply line in the abdominal cavity of the person to a reservoir surgically implanted in said abdominal cavity; disconnecting said supply from said port; closing said port upon disconnection of said supply therefrom; and automatically pumping an amount of said nutritive composition from said reservoir to a vein of the portal vein system.
Claim 10
Dependent Claim
36 words
The method defined in claim 7, further comprising the step of charging a power source attached to said reservoir, said step of pumping including the step of energizing a pump with power from said power source.
Claim 11
Dependent Claim
28 words
The method defined in claim 8 wherein said step of charging includes the step of connecting said power source to an electrical power supply outside of the person.
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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) | 1997-06-06 | 1997-12-06 | 1998-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-06 | 2001-12-06 | 2002-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-06 | 2005-12-06 | 2006-06-07 | $7700.00 | Window Closed / Lapsed |