Patent US5211638A successfully refreshed from Google Patents.
US5211638A
Expired / Lapsed
US
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Pre-slit injection site
Assignee: Baxter International Inc
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Filing: 1992-01-21
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Granted: 1993-05-18
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Expires: 2012-01-21
Abstract
Abstract A pre-slit injection site includes a housing with a flow path therethrough. A first end of the housing carries a pre-slit septum. A second end of the housing carries a coupling component to adapt the site to standard vials. The coupling component, a vial adapter, includes an adapter spike with openings allowing for the drainage of fluid in the vial through the spike and into the injection site. The vial adapter is provided with a skirt housing unit which protects the adapter spike in manufacturing and use. The skirt housing unit also provides features to lockingly engage the adapter with injection site to standard vials, despite dimensional variations in vial closures. Another embodiment of the coupling component is a spike having a barb feature capable of insertion into a standard vial or port and resisting disengagement. A blunt cannula is usable with the injection site combined with the coupling components.
Inventors
- 👤 Thomas E. Dudar
- 👤 Steven C. Jepson
- 👤 Robert P. Dobbie
- 👤 Peter L. Graham
- 👤 Michael J. Finley
- 👤 Richard A. Rollins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:20
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/162; A61J; A61J1/00; A61J1/14; A61J1/20; A61J1/2089; A61J1/2096; A61M39/00; A61M39/02; A61M39/04; A61M39/045; A61M39/10; A61M39/14; A61J1/05; A61J1/10; A61J1/1406; A61J1/1475; A61J1/2003; A61J1/2006; A61J1/201; A61J1/202; A61J1/2037; A61J1/2044; A61J1/2048; A61J1/2055; A61J2200/00; A61J2200/10; A61M2039/1072; A61M2039/1077; A61M2205/00; A61M2205/19; A61M2205/192; A61M2205/195; A61M2205/197
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
197 words
An injection site usable with a blunt cannula comprising: a housing defining a fluid flow channel therethrough, said housing having a first end and a second end; a resilient sealing means, carried by said housing overlying said channel, for sealing said first end, said sealing means being formed with a resealable opening therein extending at least partway therethrough and an exterior peripheral surface; a retaining means for retaining said sealing means in said housing such that a cannula can be sealingly inserted through said opening and placed in fluid flow communication with said flow channel and such that the cannula can be removed therefrom with said sealing means interacting with said retaining means so as to reseal said opening, said retaining means including a deformation of said housing first end against said exterior peripheral surface of said sealing means, said first end deformation applying axially directed forces to said sealing means; a coupling component integral with said second end and continuing said fluid flow channel, said coupling component having a spike with a barb member, said spike capable of being inserted into a drug vial and provide drainage of the vial fluid through said fluid flow channel.
Claim 2
Dependent Claim
197 words
An injection site usable with a blunt cannula comprising: a housing defining a fluid flow channel therethrough, said housing having a first end and a second end; a resilient sealing means, carried by said housing overlying said channel, for sealing said first end, said sealing means being formed with a resealable opening therein extending at least partway therethrough and an exterior peripheral surface; a retaining means for retaining said sealing means in said housing such that a cannula can be sealingly inserted through said opening and placed in fluid flow communication with said flow channel and such that the cannula can be removed therefrom with said sealing means interacting with said retaining means so as to reseal said opening, said retaining means including a deformation of said housing first end against said exterior peripheral surface of said sealing means, said first end deformation applying axially directed forces to said sealing means; a coupling component integral with said second end and continuing said fluid flow channel, said coupling component having a spike with a barb member, said spike capable of being inserted into a drug vial and provide drainage of the vial fluid through said fluid flow channel.
Claim 3
Dependent Claim
23 words
An injection site as in claim 1 wherein said spike comprises a substantially cylindrical, hollow body portion tapering to a solid center point.
Claim 4
Dependent Claim
26 words
An injection site as in claim 1 wherein said spike comprises a substantially cylindrical, hollow body portion tapering to a solid center point and a bore.
Claim 5
Dependent Claim
22 words
An injection site as in claim 3 wherein said bore includes three peripheral openings carried between said body and said center point.
Claim 6
Dependent Claim
193 words
An injection site usable with a blunt cannula comprising: a housing defining a fluid flow channel therethrough, said housing having a first end and a second end; a resilient sealing means, carried by said housing overlying said channel, for sealing said first end, said sealing means being formed with a resealable opening therein extending at least partway therethrough and an exterior peripheral surface; a retaining means for retaining said sealing means in said housing such that a cannula can be sealingly inserted through said opening and placed in fluid flow communication with said flow channel and such that the cannula can be removed therefrom with said sealing means interacting with said retaining means so as to reseal said opening, said retaining means including a deformation of said housing first end against said exterior peripheral surface of said sealing means, said first end deformation applying axially directed forces to said sealing means; a coupling component integral with said second end and continuing said fluid flow channel, said coupling component having a spike, said spike capable of being inserted into a drug vial and provide drainage of the vial fluid through said fluid flow channel.
Claim 7
Dependent Claim
193 words
An injection site usable with a blunt cannula comprising: a housing defining a fluid flow channel therethrough, said housing having a first end and a second end; a resilient sealing means, carried by said housing overlying said channel, for sealing said first end, said sealing means being formed with a resealable opening therein extending at least partway therethrough and an exterior peripheral surface; a retaining means for retaining said sealing means in said housing such that a cannula can be sealingly inserted through said opening and placed in fluid flow communication with said flow channel and such that the cannula can be removed therefrom with said sealing means interacting with said retaining means so as to reseal said opening, said retaining means including a deformation of said housing first end against said exterior peripheral surface of said sealing means, said first end deformation applying axially directed forces to said sealing means; a coupling component integral with said second end and continuing said fluid flow channel, said coupling component having a spike, said spike capable of being inserted into a drug vial and provide drainage of the vial fluid through said fluid flow channel.
Claim 8
Dependent Claim
23 words
An injection site as in claim 5 wherein said spike comprises a substantially cylindrical, hollow body portion tapering to a solid center point.
Claim 9
Dependent Claim
26 words
An injection site as in claim 5 wherein said spike comprises a substantially cylindrical, hollow body portion tapering to a solid center point and a bore.
Claim 10
Dependent Claim
22 words
An injection site as in claim 7 wherein said bore includes three peripheral openings carried between said body and said center point.
Claim 11
Dependent Claim
14 words
An injection site as in claim 5 wherein said spike includes a barb member.
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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) | 1996-05-17 | 1996-11-16 | 1997-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-17 | 2000-11-16 | 2001-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-17 | 2004-11-16 | 2005-05-18 | $7700.00 | Window Closed / Lapsed |