Patent US5125897A successfully refreshed from Google Patents.
US5125897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gastrostomy device with one-way valve and cuff pin
Assignee: Corpak Medsystems Inc
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Filing: 1990-04-27
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Granted: 1992-06-30
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Expires: 2010-04-27
Abstract
Abstract A unique device for long term percutaneous enteral feeding through a surgically formed stoma, such as a gastrostomy, includes a tubular member having a fluid lumen and an inflation lumen. One end of the tubular member is perpendicularly joined to a retention platform through which passes an ambient air port for the inflation lumen and an inlet for the fluid lumen. An other end of the tubular member is provided with an outlet for the fluid lumen. A one-way valve on the outlet prevents reflux of gastric contents into the fluid lumen. Disposed near the one end of the tubular member is an inflatable member, inflatable and deflatable through the inflation lumen. The inflatable member provides retention and anchoring of the device within the patient's stomach.
Inventors
- 👤 David G. Quinn
- 👤 Erik Andersen
- 👤 Steven E. Wendland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:25
CPC Classifications
A; A61; A61J; A61J15/00; A61J15/0015; A61J15/0026; A61J15/003; A61J15/0034; A61J15/0038; A61J15/0042; A61J15/0053; A61J15/0065; A61J15/0092; A61M; A61M25/00; A61M25/10; A61M25/1002
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
184 words
A device for percutaneous enteral feeding through a surgically formed ostomy, comprising: a tube having at least a fluid lumen and an inflation lumen, the tube having aport near one end to dispose the inflation lumen to ambient air and an outlet at an other end to convey fluid from within the fluid lumen into a patient; an inflatable member joined near the other end of the tube, the member being inflatable and deflatable through the inflation lumen, the member in a deflated state having an outer configuration facilitating passage through the stoma, the member in an inflated state facilitating retention of the device within the ostomy; one-way valve means secured to the outlet of the tube, the valve means being responsive to fluid flowing through the fluid lumen; means for sealing the ambient air port, the means including; a pin member having a stem, the stem being dimensioned to occlude the ambient air port and inflation lumen; and, a gripping member perpendicularly joined to one end of the stem; and, means for sealing the fluid lumen at the one end of the tube.
Claim 2
Independent Claim
184 words
A device for percutaneous enteral feeding through a surgically formed ostomy, comprising: a tube having at least a fluid lumen and an inflation lumen, the tube having aport near one end to dispose the inflation lumen to ambient air and an outlet at an other end to convey fluid from within the fluid lumen into a patient; an inflatable member joined near the other end of the tube, the member being inflatable and deflatable through the inflation lumen, the member in a deflated state having an outer configuration facilitating passage through the stoma, the member in an inflated state facilitating retention of the device within the ostomy; one-way valve means secured to the outlet of the tube, the valve means being responsive to fluid flowing through the fluid lumen; means for sealing the ambient air port, the means including; a pin member having a stem, the stem being dimensioned to occlude the ambient air port and inflation lumen; and, a gripping member perpendicularly joined to one end of the stem; and, means for sealing the fluid lumen at the one end of the tube.
Claim 3
Dependent Claim
30 words
The device of claim 1 further including a retention platform perpendicularly joined to the one end of the tube, and means for securing the gripping member to the retention platform.
Claim 4
Dependent Claim
23 words
The device of claim 2 wherein the gripping member includes a fastening head which removably seats within an opening on the retention platform.
Claim 5
Dependent Claim
27 words
The device of claim 3 wherein the opening is laterally aligned with the ambient air port by a distance equal to the length of the gripping member.
Claim 6
Dependent Claim
25 words
The device of claim 4 wherein the ambient air port and the opening lie within a groove countersunk into the surface of the retention platform.
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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) | 1995-06-30 | 1995-12-30 | 1996-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-30 | 1999-12-30 | 2000-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-30 | 2003-12-30 | 2004-06-30 | $7700.00 | Window Closed / Lapsed |