US5716347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gastrostomy feeding ports with positively sealing entrance valves
Assignee: Cook Medical Technologies LLC
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Filing: 1995-05-15
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Granted: 1998-02-10
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Expires: 2015-05-15
Abstract
Abstract Gastrostomy feeding ports are disclosed which remain positively sealed after repeated and extensive use. In one embodiment, a valve housing defines an inner passageway to provide fluid communication into a long term indwelling catheter and includes a rigid compression collar portion which defines a valve member receiving cavity within the inner passageway. The resilient valve member has an outer peripheral edge which generally conforms in shape to the valve member receiving cavity but is larger in dimension than the cavity when uncompressed. The resilient valve member also includes an outer wall portion which extends away from the outer peripheral edge of the diaphragm portion and which generally conforms in shape to the cavity. The resilient valve member is compressively fitted within the receiving cavity by the advancing of the outer wall portion into said cavity to thereby cause the outer peripheral edge to be compressed in dimension to fit within the cavity, with the compression collar pressing inwardly against the outer peripheral edge of the diaphragm portion to apply laterally compressive forces which bias the slit toward a normally closed position. Additional embodiments are disclosed which provide for the direct conversion of an implanted PEG tube into a low profile feeding port, and which further provide for the direct secure connection to an enteral feeding tube adapter.
Inventors
- 👤 Rebecca C. Gibbs
- 👤 Mark DeLegge
- 👤 Ronald D. Russo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:29
CPC Classifications
A; A61; A61J; A61J15/00; A61J15/0015; A61J15/0026; A61J15/0053; A61J15/0065; A61J15/0092; A61J15/003; A61J15/0034; A61J15/0038; A61M; A61M2210/00; A61M2210/10; A61M2210/1042; A61M2210/1053; A61M39/00; A61M39/02; A61M39/0247
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
121 words
A gastrostomy feeding port for direct sealing connection to an enteral feeding tube adapter having a front stem portion and a base stem portion, comprising: a port head defining a top opening configured to allow the front stem portion of the enteral feeding tube adapter to pass therethrough, said top opening being configured to seal about the base stem portion of the adapter; a tube opening configured to seal about the front stem portion of the adapter passing through said top opening; a one-way entrance valve secured within said port head between said top opening and said tube opening and aligned therewith, said valve opening to permit the adapter to pass therethrough, and said valve closing when the adapter is removed.
Claim 2
Dependent Claim
121 words
A gastrostomy feeding port for direct sealing connection to an enteral feeding tube adapter having a front stem portion and a base stem portion, comprising: a port head defining a top opening configured to allow the front stem portion of the enteral feeding tube adapter to pass therethrough, said top opening being configured to seal about the base stem portion of the adapter; a tube opening configured to seal about the front stem portion of the adapter passing through said top opening; a one-way entrance valve secured within said port head between said top opening and said tube opening and aligned therewith, said valve opening to permit the adapter to pass therethrough, and said valve closing when the adapter is removed.
Claim 3
Dependent Claim
40 words
The gastrostomy feeding port of claim 1, further comprising a support base connected to said port head, said support base being configured to support the adapter within said port head and to limit the amount of penetration by the adapter.
Claim 4
Dependent Claim
157 words
A gastrostomy feeding port for connection to an enteral feeding tube adapter having a from stem portion and a base stem portion, comprising: a port head defining a first opening opposing a second opening, said first and second openings being configured to allow the front stem portion of the adapter to pass therethrough; a one-way entrance valve secured within said port head between said first and second openings and aligned therewith, said valve opening to permit the adapter to pass therethrough, and said valve closing when the adapter is removed to prevent fluid transfer through said port head; and wherein said first opening provides a first seal about the base stem portion of the adapter and said second opening provides a second seal about the front stem portion of the adapter when the adapter is inserted into said port head to thereby resist fluid leakage from said port head during repeated and long-term engagement by the adapter.
Claim 5
Dependent Claim
157 words
A gastrostomy feeding port for connection to an enteral feeding tube adapter having a from stem portion and a base stem portion, comprising: a port head defining a first opening opposing a second opening, said first and second openings being configured to allow the front stem portion of the adapter to pass therethrough; a one-way entrance valve secured within said port head between said first and second openings and aligned therewith, said valve opening to permit the adapter to pass therethrough, and said valve closing when the adapter is removed to prevent fluid transfer through said port head; and wherein said first opening provides a first seal about the base stem portion of the adapter and said second opening provides a second seal about the front stem portion of the adapter when the adapter is inserted into said port head to thereby resist fluid leakage from said port head during repeated and long-term engagement by the adapter.
Claim 6
Dependent Claim
26 words
The gastrostomy feeding port according to claim 3, wherein said port head includes a resilient retaining cap defining said first opening and providing said first seal.
Claim 7
Dependent Claim
26 words
The gastrostomy feeding port according to claim 3, wherein said port head further includes a resilient o-ring defining said second opening and providing said second seal.
Claim 8
Dependent Claim
39 words
The gastrostomy feeding port according to claim 3, wherein said first opening is generally circular with a first diameter, said second opening is generally circular with a second diameter, and said first diameter is larger than said second diameter.
Claim 9
Dependent Claim
20 words
The gastrostomy feeding port according to claim 3, further comprising a tube portion in fluid communication with said second opening.
Claim 10
Dependent Claim
29 words
The gastrostomy feeding port according to claim 3, further comprising a tube in fluid communication with said second opening and a fastener securing said tube to said port head.
Claim 11
Dependent Claim
34 words
The gastrostomy feeding port according to claim 3, wherein said port head has a support base to support the adapter within said port head and to limit the amount of penetration by the adapter.
Claim 12
Dependent Claim
59 words
The gastrostomy feeding port according to claim 3, wherein said port head includes a rigid compression collar which defines a valve member receiving cavity and said valve includes a resilient valve member with a diaphragm portion defining a slit therethrough, and said valve member is compressively fit within said cavity to bias said slit to a normally closed position.
Claim 13
Dependent Claim
179 words
A kit for converting an percutaneous gastrostomy feeding tube to a low profile gastrostomy feeding port, the tube having a distal end implanted in a patient's body and a proximal end located outside the patient's body, the port being configured to receive a removable enteral feeding port adapter, comprising: a port head having a top portion defining a top opening and a base portion defining a lower opening, said port head being configured to allow the adapter to pass therethrough and provide a first seal about the adapter to prevent leakage when the adapter is inserted therethrough; a one-way entrance valve secured within said port head between said top and lower openings and aligned therewith, said valve opening to permit the adapter to pass therethrough, and said valve closing when the adapter is removed to prevent transfer of material therethrough; a fastener configured to fasten the proximal end of the tube to said base portion of said port head to permit transfer of fluid into the tube from the adapter when the adapter is inserted into said port head.
Claim 14
Dependent Claim
179 words
A kit for converting an percutaneous gastrostomy feeding tube to a low profile gastrostomy feeding port, the tube having a distal end implanted in a patient's body and a proximal end located outside the patient's body, the port being configured to receive a removable enteral feeding port adapter, comprising: a port head having a top portion defining a top opening and a base portion defining a lower opening, said port head being configured to allow the adapter to pass therethrough and provide a first seal about the adapter to prevent leakage when the adapter is inserted therethrough; a one-way entrance valve secured within said port head between said top and lower openings and aligned therewith, said valve opening to permit the adapter to pass therethrough, and said valve closing when the adapter is removed to prevent transfer of material therethrough; a fastener configured to fasten the proximal end of the tube to said base portion of said port head to permit transfer of fluid into the tube from the adapter when the adapter is inserted into said port head.
Claim 15
Dependent Claim
22 words
The kit according to claim 11, wherein said base portion includes a stem with an annular barb configured to engage the tube.
Claim 16
Dependent Claim
37 words
The kit according to claim 11, wherein said base portion includes a stem with an annular barb configured to engage the tube and said fastener includes a pull tie configured to clamp the tube to said stem.
Claim 17
Dependent Claim
60 words
The kit according to claim 13, further comprising a bolster defining an aperture, said bolster being configured to slide over the tube before fastening the tube to said port head and slide over said base portion after fastening the tube to said port head, said bolster defining a chamber configured to house said pull tie when clamped to the tube.
Claim 18
Dependent Claim
56 words
The kit according to claim 14, wherein said bolster includes a resilient sealing ring formed about said aperture, said sealing ring is configured to stretch over said annular barb after said pull tie clamps the tube to said stem and is further configured to clamp the tube to said stem after stretching over said annular barb.
Claim 19
Dependent Claim
57 words
The kit according to claim 11, wherein said port head includes a rigid compression collar which defines a valve member receiving cavity and said valve includes a resilient valve member with a diaphragm portion defining a slit therethrough, and said valve member is compressively fit within said cavity to bias said slit to a normally closed position.
Claim 20
Dependent Claim
13 words
The kit according to claim 11, wherein said fastener includes a pull tie.
Claim 21
Dependent Claim
152 words
A gastrostomy feeding assembly for repeated long term use, comprising: an enteral feeding tube adapter, said adapter having a front stem portion with a first diameter and a base stem portion with a second diameter larger than said first diameter; a port head defining a first opening opposing a second opening, said first opening receiving said front and base stem portions therethrough and said second opening receiving said front stem portion therethrough; a one-way entrance valve secured within said port head between said first and second openings and aligned therewith, said valve opening to permit the adapter to pass therethrough, and said valve closing when the adapter is removed to prevent fluid transfer through said port head; and wherein said port head has a support base positioned between said valve and said second opening to engage said base stem portion and prevent passage of said base stem portion through said second opening.
Claim 22
Dependent Claim
152 words
A gastrostomy feeding assembly for repeated long term use, comprising: an enteral feeding tube adapter, said adapter having a front stem portion with a first diameter and a base stem portion with a second diameter larger than said first diameter; a port head defining a first opening opposing a second opening, said first opening receiving said front and base stem portions therethrough and said second opening receiving said front stem portion therethrough; a one-way entrance valve secured within said port head between said first and second openings and aligned therewith, said valve opening to permit the adapter to pass therethrough, and said valve closing when the adapter is removed to prevent fluid transfer through said port head; and wherein said port head has a support base positioned between said valve and said second opening to engage said base stem portion and prevent passage of said base stem portion through said second opening.
Claim 23
Dependent Claim
25 words
The gastrostomy feeding assembly according to claim 18, wherein said support base includes an annular seating portion configured for engagement by said base stem portion.
Claim 24
Dependent Claim
36 words
The gastrostomy feeding assembly according to claim 18, wherein said first opening provides a first resilient seal about said base stem portion and said second opening provides a second resilient seal about said front stem portion.
Claim 25
Dependent Claim
35 words
The gastrostomy feeding assembly according to claim 20, wherein said support base and said adapter are formed from a polymeric resin compound and have greater rigidity than said said first seal and said second seal.
Claim 26
Dependent Claim
59 words
The gastrostomy feeding assembly according to claim 18, wherein said port head includes a rigid compression collar which defines a valve member receiving cavity and said valve includes a resilient valve member with a diaphragm portion defining a slit therethrough, and said valve member is compressively fit within said cavity to bias said slit to a normally closed position.
Claim 27
Dependent Claim
29 words
The gastrostomy feeding assembly according to claim 18, further comprising a tube in fluid communication with said second opening and a fastener securing said tube to said port head.
Claim 28
Independent Claim
176 words
A method of converting an percutaneous gastrostomy tube implanted in a patient's body to a low profile gastrostomy feeding port, the tube having a inner portion positioned within the patient's body and a outer portion positioned outside the patient's body to define a fluid passageway therebetween, and the port being configured to receive a removable enteral feeding port adapter, the method comprising: severing the outer portion of the tube to provide a shorter length of the tube outside the patient's body; providing a port head defining a top opening opposing a bottom opening and including a valve positioned between the top and bottom openings, the valve being configured to open when the adapter is inserted into the port head and close when the adapter is removed from the port head; and coupling the port head to the outer portion of the tube with a fastener to establish fluid communication between the bottom opening of the port head and the passageway to selectively provide fluid through the tube when the adapter is inserted into the port head.
Claim 29
Independent Claim
176 words
A method of converting an percutaneous gastrostomy tube implanted in a patient's body to a low profile gastrostomy feeding port, the tube having a inner portion positioned within the patient's body and a outer portion positioned outside the patient's body to define a fluid passageway therebetween, and the port being configured to receive a removable enteral feeding port adapter, the method comprising: severing the outer portion of the tube to provide a shorter length of the tube outside the patient's body; providing a port head defining a top opening opposing a bottom opening and including a valve positioned between the top and bottom openings, the valve being configured to open when the adapter is inserted into the port head and close when the adapter is removed from the port head; and coupling the port head to the outer portion of the tube with a fastener to establish fluid communication between the bottom opening of the port head and the passageway to selectively provide fluid through the tube when the adapter is inserted into the port head.
Claim 30
Dependent Claim
28 words
The method of claim 24, wherein the length of the tube outside the patient's body after said severing is in a range of about 1 to 5 centimeters.
Claim 31
Dependent Claim
25 words
The method of claim 24, further comprising clamping the outer portion of the tube and measuring the outer portion of the tube before said severing.
Claim 32
Dependent Claim
41 words
The method of claim 24, wherein the port head includes a stem with an annular barb defining the bottom opening and said coupling includes inserting the stem into the passageway of the tube through an opening defined by the outer portion.
Claim 33
Dependent Claim
20 words
The method of claim 24, further comprising providing a bolster defining an aperture and inserting the tube through the aperture.
Claim 34
Dependent Claim
129 words
The method of claim 24, further comprising clamping the outer portion of the tube before said severing, measuring the outer portion of the tube to provide a length of the tube outside the patient's body in a range of about 1 to 5 centimeters after said severing, providing a bolster defining an aperture, and passing the tube through the aperture; and wherein the port head includes a stem with an annular barb defining the bottom opening and said coupling includes inserting the stem into the passageway of the tube after said passing and securing a pull tie about the tube and the stem, the pull tie being located between the valve and the barb, and the aperture of the bolster being located between the pull tie and the barb.
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) | 2001-02-09 | 2001-08-11 | 2002-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-02-09 | 2005-08-11 | 2006-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-02-09 | 2009-08-11 | 2010-02-10 | $7700.00 | Window Closed / Lapsed |