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US4903855A Expired / Lapsed US ⏱️ 0.0 years remaining

Closure and port assembly

Assignee: Baxter International Inc
•
Filing: 1988-11-25
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Granted: 1990-02-27
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Expires: 2008-11-25
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Abstract

Abstract A port and closure assembly is provided. The port and closure assembly comprises a port including a tubular portion that extends from a base, the tubular portion terminating at an end including an opening. A closure is provided for sealing at least a portion of the end of the port, the port and closure being constructed from materials that create a tack seal when the closure is positioned on the port and the port and closure are sterilized, the tack seal functioning to secure the closure to the port.

Inventors

  • 👤 James Ducay
  • 👤 Josef Schmidt
  • 👤 Hugh Forman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 16:38
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/05; A61J1/10; B; B65; B65D; B65D41/00; B65D41/32

Claims Analysis

Total Claims: 24
Claim 1
Independent Claim 81 words
A port and closure assembly comprising: a port including a tubular portion that extends from a base, the tubular portion terminating at an end including an opening; and a closure, for sealing at least a portion of the end of the port, the port and closure being constructed from materials that create a tack seal when the closure is positioned on the port and the port and closure are sterilized, the tack seal functioning to secure the closure to the port.
Claim 2
Dependent Claim 81 words
A port and closure assembly comprising: a port including a tubular portion that extends from a base, the tubular portion terminating at an end including an opening; and a closure, for sealing at least a portion of the end of the port, the port and closure being constructed from materials that create a tack seal when the closure is positioned on the port and the port and closure are sterilized, the tack seal functioning to secure the closure to the port.
Claim 3
Dependent Claim 16 words
The port and closure assembly of claim 1 wherein the closure is constructed from EPDM rubber.
Claim 4
Dependent Claim 16 words
The port and closure assembly of claim 1 wherein the port is constructed from a polypropylene.
Claim 5
Dependent Claim 18 words
The port and closure of claim 1 wherein the port is constructed from a thermoplastic elastomer modified polypropylene.
Claim 6
Dependent Claim 18 words
The port and closure assembly of claim 1 wherein the port is constructed from a Kraton modified polypropylene.
Claim 7
Dependent Claim 16 words
The port and closure assembly of claim 1 wherein the port and closure are steam sterilized.
Claim 8
Dependent Claim 18 words
The port and closure assembly of claim 1 wherein the port and closure are sterilized by gamma sterilization.
Claim 9
Dependent Claim 24 words
The port and closure assembly of claim 1 wherein the port is constructed from polypropylene blend and the closure is constructed from EPDM rubber.
Claim 10
Dependent Claim 165 words
A tamper evident closure for removably sealing an opening of a port comprising: a first end for gripping the closure; a second end, defining a sleeve portion, for circumscribing a portion of the port when the closure is positioned so that it seals the opening of the port; an intermediate segment extending between the first end and the second end, the intermediate segment having a portion that has a reduced cross-sectional thickness with respect to other portions of the intermediate portion, the portion having a sufficiently reduced cross-sectional thickness allowing a portion of the closure located on a first side of the portion having a reduced thickness to separate from a portion of the closure located on a second side of the portion having a reduced thickness, when the sleeve is secured to the port and a sufficient pulling force is exerted on the first end; and the closure cooperating with the port to provide a tack seal upon sterilization of the closure and port.
Claim 11
Dependent Claim 165 words
A tamper evident closure for removably sealing an opening of a port comprising: a first end for gripping the closure; a second end, defining a sleeve portion, for circumscribing a portion of the port when the closure is positioned so that it seals the opening of the port; an intermediate segment extending between the first end and the second end, the intermediate segment having a portion that has a reduced cross-sectional thickness with respect to other portions of the intermediate portion, the portion having a sufficiently reduced cross-sectional thickness allowing a portion of the closure located on a first side of the portion having a reduced thickness to separate from a portion of the closure located on a second side of the portion having a reduced thickness, when the sleeve is secured to the port and a sufficient pulling force is exerted on the first end; and the closure cooperating with the port to provide a tack seal upon sterilization of the closure and port.
Claim 12
Dependent Claim 28 words
The tamper evident closure of claim 9 wherein the portion having a reduced thickness is located at a point in juxtaposition to a top end of the sleeve.
Claim 13
Dependent Claim 26 words
The tamper evident closure of claim 9 wherein the first end includes a member that extends into a channel area that is defined by the sleeve.
Claim 14
Dependent Claim 15 words
The tamper evident closure of claim 9 wherein the closure is constructed from EPDM rubber.
Claim 15
Dependent Claim 17 words
The tamper evident closure of claim 12 wherein the port is constructed from a Kraton modified polypropylene.
Claim 16
Dependent Claim 18 words
The tamper evident closure of claim 9 wherein the port is constructed from a thermoplastio elastomer modified polypropylene.
Claim 17
Dependent Claim 43 words
The tamper evident closure of claim 9 wherein the closure is so constructed and arranged that the sleeve circumscribes a portion of the port and an opening of the port can be accessed when the closure separates along the portion of reduced thickness.
Claim 18
Dependent Claim 147 words
A port and closure assembly comprising: a port including a tubular portion that extends from a base and terminates at an end having an opening; a closure, for sealing at least a portion of the end portion of the port, the closure including at one end a gripping member, at a second end a sleeve member that circumscribes a portion of the end of the port when the closure is positioned over the port, and an intermediate portion located between the first and second ends, the intermediate portion including means for allowing a first portion of the port, that is defined at least in part by the first end, to separate from a second portion of the port, that is defined at least in part by the second end; and the closure and port cooperate to provide a tack seal upon sterilization of the closure and port.
Claim 19
Dependent Claim 147 words
A port and closure assembly comprising: a port including a tubular portion that extends from a base and terminates at an end having an opening; a closure, for sealing at least a portion of the end portion of the port, the closure including at one end a gripping member, at a second end a sleeve member that circumscribes a portion of the end of the port when the closure is positioned over the port, and an intermediate portion located between the first and second ends, the intermediate portion including means for allowing a first portion of the port, that is defined at least in part by the first end, to separate from a second portion of the port, that is defined at least in part by the second end; and the closure and port cooperate to provide a tack seal upon sterilization of the closure and port.
Claim 20
Dependent Claim 26 words
The port and closure assembly of claim 16 wherein: the port is constructed from a rubber modified polypropylene; and the closure is constructed from EPDM rubber.
Claim 21
Dependent Claim 16 words
The port and closure assembly of claim 16 wherein the port and closure are steam sterilized.
Claim 22
Dependent Claim 16 words
The port and closure assembly of claim 16 wherein the port and closure are gamma sterilized.
Claim 23
Dependent Claim 35 words
The port and closure assembly of claim 16 wherein the sleeve of the closure circumscribes a portion of the port after the first portion of the closure separates from a second portion of the closure.
Claim 24
Dependent Claim 14 words
The port and closure assembly of claim 20 wherein the sleeve is color coded.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-02-26 1993-08-28 1994-02-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-02-26 1997-08-28 1998-02-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-02-26 2001-08-28 2002-02-27 $7700.00 Window Closed / Lapsed

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