Sealing closure for a Luer fitting in open communication with a pressurized liquid supply
First Claim
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1. A removable sealing closure for a male Luer fitting that is in open communication with a pressurized liquid supply, the male Luer fitting being of the type including a locking ring, the sealing closure comprising:
- (a) a rigid, hollow cap including(i) a first end,(ii) an open second end opposite said first end,(iii) flange means extending radially outwardly from said hollow cap, near said second end, for engagement by the locking ring and(iv) a tapered inner surface forming at least a tapered portion of a cavity wall in said hollow cap, said tapered inner surface tapering inwardly from said open second end at the beginning of a cavity defined by said cavity wall, for interfitment with a male Luer fitting;
(b) an elastomeric insert compressively retained by said hollow cap in said cavity, short of the end of said cavity such that at least an end portion of said cavity remains on the first-end side of said elastomeric insert; and
(c) an elastomeric adhesive in said cavity end portion between said elastomeric insert and said cavity wall;
(d) such that said removable sealing closure is adapted to create a liquid-tight seal between said elastomeric insert and an outlet of the male Luer fitting and wherein said elastomeric insert is partially displaced into the outlet of the male Luer fitting upon mating contact of the Luer fitting and said tapered inner surface and securement of the locking ring to said flange means.
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Abstract
A sealing closure for a male Luer fitment includes a rigid hollow cap and flange means for a pressure lock with the fitment. The sealing closure includes a compressively retained elastomeric insert which deforms over time to compensate for creep between the fitment and the hollow cap. The sealing closure provides a liquid-tight seal over time against a pressurized liquid supply in open communication with the fitment.
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Citations
13 Claims
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1. A removable sealing closure for a male Luer fitting that is in open communication with a pressurized liquid supply, the male Luer fitting being of the type including a locking ring, the sealing closure comprising:
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(a) a rigid, hollow cap including (i) a first end, (ii) an open second end opposite said first end, (iii) flange means extending radially outwardly from said hollow cap, near said second end, for engagement by the locking ring and (iv) a tapered inner surface forming at least a tapered portion of a cavity wall in said hollow cap, said tapered inner surface tapering inwardly from said open second end at the beginning of a cavity defined by said cavity wall, for interfitment with a male Luer fitting; (b) an elastomeric insert compressively retained by said hollow cap in said cavity, short of the end of said cavity such that at least an end portion of said cavity remains on the first-end side of said elastomeric insert; and (c) an elastomeric adhesive in said cavity end portion between said elastomeric insert and said cavity wall; (d) such that said removable sealing closure is adapted to create a liquid-tight seal between said elastomeric insert and an outlet of the male Luer fitting and wherein said elastomeric insert is partially displaced into the outlet of the male Luer fitting upon mating contact of the Luer fitting and said tapered inner surface and securement of the locking ring to said flange means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A sealing closure and male Luer fitting combination comprising:
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(a) a pressurized liquid supply; (b) a male Luer fitting disposed in open liquid communication with said liquid supply, said male Luer fitting including a locking ring thereabout and an outlet; and (c) said sealing closure being removable from said male Luer fitting and including a rigid, hollow cap having (i) a first end, (ii) an open second end opposite said first end, (iii) flange means extending radially outwardly from said hollow cap, near said second end, for engagement by the locking ring, (iv) a tapered inner surface forming at least a tapered portion of a cavity wall in said hollow cap, said tapered inner surface tapering inwardly from said open second end at the beginning of a cavity defined by said cavity wall, for interfitment with said male Luer fitting, (v) an elastomeric insert compressively retained by said hollow cap in said cavity, short of the end of said cavity such that at least an end portion of said cavity remains on the first-end side of said elastomeric insert, and (vi) an elastomeric adhesive in said cavity end portion between said elstomeric insert and said cavity wall. - View Dependent Claims (11, 12, 13)
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Specification