US5215537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Septum for a blunt cannula
Assignee: Individual
•
Filing: 1990-09-13
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Granted: 1993-06-01
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Expires: 2010-09-13
Abstract
Abstract An elastomeric member for occluding a medical terminal such as a junction terminal to provide a seal and penetratable to establish fluid connection by a blunt needle or cannula in which improved security against passage of contamination is provided. The needle or cannula preferably passes through a perforated passage. The passage can have at least two portions, one having a slit for normally sealing tightly in the absence of a cannula or needle and the other having a bore communicating with the slit and closely conforming to the cannula surface. Other sealing arrangements are detailed.
Inventors
- 👤 Lawrence A. Lynn
- 👤 James R. Longacre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:36
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/04; A61M39/045
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
155 words
A homogeneous elastomeric member adapted to occlude and seal a medical terminal, and further adapted to be penetrable by a blunt needle or cannula to establish a fluid communication through said homogeneous elastomeric member, said homogeneous elastomeric member comprising: a passageway extending only partially through said homogeneous elastomeric member, said passageway including a first portion and a second portion, said first portion of said passageway is defined by a bore adapted to receive said blunt needle or cannula substantially without clearance, and said second portion of said passageway is defined by a plurality of confronting surfaces which, in the absence of penetration by said blunt needle or cannula, abut each other to substantially occlude said passageway; and sealing means for preventing passage of contamination through said homogeneous elastomeric member along said passageway, said sealing means including a portion of said homogeneous elastomeric member adapted to be ruptured by penetration of said blunt needle or cannula.
Claim 2
Dependent Claim
155 words
A homogeneous elastomeric member adapted to occlude and seal a medical terminal, and further adapted to be penetrable by a blunt needle or cannula to establish a fluid communication through said homogeneous elastomeric member, said homogeneous elastomeric member comprising: a passageway extending only partially through said homogeneous elastomeric member, said passageway including a first portion and a second portion, said first portion of said passageway is defined by a bore adapted to receive said blunt needle or cannula substantially without clearance, and said second portion of said passageway is defined by a plurality of confronting surfaces which, in the absence of penetration by said blunt needle or cannula, abut each other to substantially occlude said passageway; and sealing means for preventing passage of contamination through said homogeneous elastomeric member along said passageway, said sealing means including a portion of said homogeneous elastomeric member adapted to be ruptured by penetration of said blunt needle or cannula.
Claim 3
Dependent Claim
21 words
A homogeneous elastomeric member as in claim 1 wherein said sealing means is adjacent an end of said homogeneous elastomeric member.
Claim 4
Dependent Claim
27 words
A homogeneous elastomeric member as in claim 1 wherein said first portion of said passageway extends between said second portion of said passageway and said sealing means.
References Cited (Backward Citations)
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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) | 1996-05-31 | 1996-11-30 | 1997-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-31 | 2000-11-30 | 2001-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-31 | 2004-11-30 | 2005-06-01 | $7700.00 | Window Closed / Lapsed |