Patent US1435422A successfully refreshed from Google Patents.
US5049128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valved infusion port
Assignee: Individual
•
Filing: 1990-02-06
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Granted: 1991-09-17
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Expires: 2010-02-06
Abstract
Abstract A valved infusion port of an infusion system comprising an injection unit having a primary infusion port and at least one secondary infusion port, characterized by the improvement to the secondary infusion port comprising: a bidirectional valve means disposed about the secondary infusion port; whereby the bidirectional valve means is capable of opening and closing the secondary infusion port to permit the administration of a secondary infusion without the use of a needle.
Inventors
- 👤 Irene A. Duquette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:58
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/22; A61M39/26; A61M2039/263
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
171 words
A valved infusion port of an infusion system comprising an injection unit having a primary infusion port and at least one secondary infusion port, characterized by the improvement to said secondary infusion port comprising: a bidirectional valve means disposed about said secondary infusion port, said bidirectional valve means is a two-way spring valve which comprises: a spring means, a valve port, and a valve plunger having a sealing means a conduit means disposed thereabout, wherein said spring means is connected to said valve plunger in such a way as to permit the opening said conduit means when said spring means is recoiled such that said sealing means is not in contact with said valve port and to permit the closing of said conduit means when said spring means is expanded such that said sealing means is in contact with said valve port; whereby said bidirectional valve means is capable of opening an closing said secondary infusion port to permit the administration of a secondary infusion without the use of a needle.
Claim 2
Dependent Claim
171 words
A valved infusion port of an infusion system comprising an injection unit having a primary infusion port and at least one secondary infusion port, characterized by the improvement to said secondary infusion port comprising: a bidirectional valve means disposed about said secondary infusion port, said bidirectional valve means is a two-way spring valve which comprises: a spring means, a valve port, and a valve plunger having a sealing means a conduit means disposed thereabout, wherein said spring means is connected to said valve plunger in such a way as to permit the opening said conduit means when said spring means is recoiled such that said sealing means is not in contact with said valve port and to permit the closing of said conduit means when said spring means is expanded such that said sealing means is in contact with said valve port; whereby said bidirectional valve means is capable of opening an closing said secondary infusion port to permit the administration of a secondary infusion without the use of a needle.
Claim 3
Dependent Claim
26 words
The valved infusion port according to claim 1, wherein a closing means is disposed about said secondary infusion port for keeping said secondary infusion port sterile.
Claim 4
Dependent Claim
17 words
The valved infusion port according to claim 2, wherein said closing means is a plastic flip-top cap.
Claim 5
Dependent Claim
18 words
The valved infusion port according to claim 2, wherein said closing means is a plastic or rubber stopper.
Claim 6
Dependent Claim
26 words
The valved infusion port according to claim 1, wherein said bidirectional valve is connected to either a syringe, a leur lock tubing, or an intravenous tubing.
Claim 7
Dependent Claim
17 words
The valved infusion port according to claim 1, wherein said spring means is a stainless steel spring.
Claim 8
Dependent Claim
22 words
The valved infusion port according to claim 1, wherein said valve plunger and valve port are formed from plastic or non-allergic plastic.
Claim 9
Dependent Claim
19 words
The valved infusion port according to claim 1, wherein said sealing means is a rubber or plastic 0-ring seal.
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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) | 1994-09-16 | 1995-03-18 | 1995-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-16 | 1999-03-18 | 1999-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-16 | 2003-03-18 | 2003-09-17 | $7700.00 | Window Closed / Lapsed |