Patent US2480082A successfully refreshed from Google Patents.
US5207656A
Expired / Lapsed
US
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Medical instrument valve having foam partition member
Assignee: Cordis Corp
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Filing: 1990-04-19
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Granted: 1993-05-04
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Expires: 2010-04-19
Abstract
Abstract A medical instrument such as a catheter introducer comprises a housing. The housing includes a valve for receiving and sealing an elongated member which penetrates the valve. The valve comprises an elastomeric partition member. By this invention, the partition member comprises a foamed elastomer material to facilitate penetration of the elongated member therethrough and sealing of the valve
Inventors
- 👤 Rudy J. Kranys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:15
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/06; A61M39/0606; A61M2039/062; A61M2039/0633; A61M2039/064
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
88 words
An arterial catheter introducer which comprises a cannula portion and a proximally positioned, tubular housing, said housing comprising a valve for receiving and sealing an elongated member which penetrates said valve, said valve comprising an elastomeric partition member, the improvement comprising, in combination: said partition member comprising a closed-cell foam; hydrophobic elastomer material, the closed cells of said foam carrying a liquid agent within said cells to facilitate penetration of said elongated member therethrough and sealing of said valve, said partition member being initially aperture-free prior to use.
Claim 2
Dependent Claim
88 words
An arterial catheter introducer which comprises a cannula portion and a proximally positioned, tubular housing, said housing comprising a valve for receiving and sealing an elongated member which penetrates said valve, said valve comprising an elastomeric partition member, the improvement comprising, in combination: said partition member comprising a closed-cell foam; hydrophobic elastomer material, the closed cells of said foam carrying a liquid agent within said cells to facilitate penetration of said elongated member therethrough and sealing of said valve, said partition member being initially aperture-free prior to use.
Claim 3
Dependent Claim
23 words
The medical instrument of claim 1 in which said foamed elastomer material defines foam cells having diameters of substantially 0.001 to 0.05 inch.
Claim 4
Dependent Claim
67 words
A medical instrument comprising a housing, said housing comprising a valve for receiving and sealing an elongated member which penetrates said valve, said valve comprising an elastomeric partition member, the improvement comprising, in combination: said partition member comprising a foamed elastomer material of the closed cell foam type, closed cells of said foamed elastomer material carrying a liquid agent to facilitate the use of said medical instrument.
Claim 5
Dependent Claim
67 words
A medical instrument comprising a housing, said housing comprising a valve for receiving and sealing an elongated member which penetrates said valve, said valve comprising an elastomeric partition member, the improvement comprising, in combination: said partition member comprising a foamed elastomer material of the closed cell foam type, closed cells of said foamed elastomer material carrying a liquid agent to facilitate the use of said medical instrument.
Claim 6
Dependent Claim
14 words
The medical instrument of claim 3 in which said liquid agent is a lubricant.
Claim 7
Dependent Claim
22 words
The medical instrument of claim 3 in which said partition member defines a recloseable aperture to facilitate penetration by said elongated member.
Claim 8
Dependent Claim
34 words
The medical instrument of claim 3 in which said partition member is free of an aperture extending transversely therethrough whereby said elongated member must rupture cells of the foam as it penetrates said partition.
Claim 9
Dependent Claim
16 words
The medical instrument of claim 6 in which said elastomer material is generally hydrophobic in nature.
Claim 10
Dependent Claim
23 words
The medical instrument of claim 3 in which said foamed elastomer material defines foam cells having diameters of substantially 0.001 to 0.05 inch.
Claim 11
Dependent Claim
71 words
An arterial catheter introducer which comprises a cannula portion and a proximally positioned tubular housing, said housing comprising a valve for receiving and sealing an elongated member which penetrates said valve, said valve comprising an elastomeric partition member, the improvement comprising, in combination: said partition member comprising a foamed, hydrophobic elastomer material, with the foamed elastomer material defining cells which carry a lubricant to facilitate the use of said catheter introducer.
Claim 12
Dependent Claim
71 words
An arterial catheter introducer which comprises a cannula portion and a proximally positioned tubular housing, said housing comprising a valve for receiving and sealing an elongated member which penetrates said valve, said valve comprising an elastomeric partition member, the improvement comprising, in combination: said partition member comprising a foamed, hydrophobic elastomer material, with the foamed elastomer material defining cells which carry a lubricant to facilitate the use of said catheter introducer.
Claim 13
Dependent Claim
17 words
The medical instrument of claim 9 in which said foamed elastomer material is a closed cell foam.
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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) | 1996-05-03 | 1996-11-02 | 1997-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-03 | 2000-11-02 | 2001-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-03 | 2004-11-02 | 2005-05-04 | $7700.00 | Window Closed / Lapsed |