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US4979630: Ampoules

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Filing Information

Inventor(s) Howard Rose · McAfer; Ian G. C. ·
Assignee(s) Waverley Pharmaceutical Limited ·
Attorney/Agent(s) Waldron & Associates ·
Primary Examiner Sue A. Weaver ·
Application Number US7305549
Filing date 02/03/1989
Issue date 12/25/1990
Predicted expiration date 02/03/2009
U.S. Classifications 215/32  · 206/530  ·
International Classifications A61J 106  ·
Kind CodeA
International Classifications 21532;33;1 C;31 ·
Foreign Priority GB8802349 - 02/03/1988 ·
13 Claims, No Drawings


Abstract

The present invention provides plastics ampoules made by the blow-fill-seal method which substantially overcome the problems of vacuum formation and touch contamination, during use, by providing one or more grooves in the neck of the ampoule to allow replacement of displaced liquid with air and/or a head sealed to the mouth of the opening by a frangible membrane and tapering up towards a grip away from the opening, and optionally a funnel leading to the neck, this funnel also assisting docking of the head of a syringe.

Independent Claims | See all claims (13)

  1. 1. A plastic ampoule having an internal cavity adapted to contain a liquid, a single opening to said internal cavity and a removable head, said opening comprising a dispensing neck extending from said internal cavity to a mouth of said opening, said removable head sealing said opening, said neck adapted to receive and engage a syringe head for the purpose of withdrawing liquid from said cavity, and a vacuum-relief vent means being provided to prevent a build-up of vacuum within said ampoule upon withdrawal of liquid from said cavity, said vent means being contoured into said neck.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
USD259213 Automatic Liquid Packaging, Inc. Pagels May 1981
US1382163 LODOVICO BECCARI Beccari Jun 1921
US4175597 The Kendall Company Peterson Nov 1979
US4317448 Baxa Corporation Smith Mar 1982
US4512475 FEDERIGHI ALBERTO Federighi Apr 1985
US4558793 HANSEN GERHARD Hansen Dec 1985
US4588090 Cito-Pac Verpackungsgesellschaft mbH Spuck et al. May 1986
US4643309 Astra Lakemedel AB Evers Feb 1987
US4787536 Aktiebolaget Draco Widerstrom Nov 1988

Foreign Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
EP88056Jul 1983
DE805846WILHELM POLLMANNMay 1951
DE2439312KYBURZ HANSJun 1976
DE3439420SALZMANN RUDOLFApr 1986
GB572176LEONARD CHARLES CASSELLESep 1945
GB2039267ARIAS MAug 1980
GB2043582HAYLE SOFT DRINK CO LTDOct 1980

Other Publications

European Search Report for EP 89301101.5, 12/20/89.

Patent Family

Document NumberAssigneeInventorsIssue/Pub Date
GB8802349 WAVERLEY PHARMA LTD Mar 1988
EP0327397 WAVERLEY PHARMACEUTICAL LIMITED Howard Rose et al. Feb 1990
US4979630 Waverley Pharmaceutical Limited Howard Rose et al. Dec 1990