Drug release valve for a parenteral administration system

- Aktiebolaget Hassle
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Description

FIG. 1 is a front elevational view of a drug release valve for a parenteral administration system, showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof, the opposite side being identical thereto;

FIG. 4 is a front elevational view thereof, with the cartridge portion removed;

FIG. 5 is a side elevational view of the cartridge portion;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a side elevational view thereof, opposite that shown in FIG. 5;

FIG. 8 is a rear elevational view of the drug release valve; and

FIG. 9 is an end elevational view thereof, opposite the spike end.

Referenced Cited
U.S. Patent Documents
D293129 December 8, 1987 Millard et al.
4465471 August 14, 1984 Harris et al.
4540403 September 10, 1985 Theeuwes
4695272 September 22, 1987 Berglund et al.
4740198 April 26, 1988 Theeuwes
4790820 December 13, 1988 Theeuwes
Patent History
Patent number: D314051
Type: Grant
Filed: Jan 7, 1987
Date of Patent: Jan 22, 1991
Assignee: Aktiebolaget Hassle (Molndal)
Inventors: Bengt G. Berglund (Goteborg), Nils B. Nilson (Mjolby), Ake S. Nilsson (Goteborg)
Primary Examiner: A. Hugo Word
Assistant Examiner: Stella M. Reid
Law Firm: White & Case
Application Number: 7/1,105
Classifications
Current U.S. Class: D24/53; D24/51