Use of polymeric membranes in the dispensing of pharmaceutical s

Details Use of polymeric membranes in the dispensing of pharmaceutical s Use of polymeric membranes in the dispensing of pharmaceutical s

1994-06-24

1996-12-31

Kashnikow, Andres

Dispensing

Collapsible wall-type container

22218906, 222190, 222420, 604295, 210445, 210455, 210456, B65D 108

Patent

active

055885594

ABSTRACT:
A dispenser for pharmaceutical solutions which includes membranes which are placed in a dropper of the dispenser and are used to achieve the flow of essentially all the active product and the retention of essentially all the preservative during pharmacological treatment. The membrane is coupled between two cylinder units on parts of the dropper, which remain in a relatively movable position, owing to the existence of a certain play between the cylinder units; or the cylinder units may be in a relatively fixed position, owing to the lack of such play. The cylinder unit may also be in a fixed position but with a membrane treated adequately so as to have a small area or "stain" that permits the flow of air.

REFERENCES:
patent: 4229306 (1980-10-01), Hein et al.
patent: 4463880 (1984-08-01), Kramer et al.
patent: 4485014 (1984-11-01), Gilroy et al.
patent: 4846810 (1989-07-01), Gerber
patent: 4938389 (1990-07-01), Rossi et al.
patent: 5056689 (1991-10-01), Heyl et al.
patent: 5074440 (1991-12-01), Clements et al.
patent: 5105993 (1992-04-01), La Haye et al.
patent: 5219101 (1993-06-01), Matkovich et al.
patent: 5249712 (1993-10-01), Lontrade et al.
patent: 5265770 (1993-11-01), Matkovich et al.
patent: 5269917 (1993-12-01), Stankowski
patent: 5310085 (1994-05-01), Lontrade et al.
patent: 5373971 (1994-12-01), Laffy
Polymer-Surfactant Interaction Part I.--Uncharged Water-Soluble Polymers and Charged Surfactants (Colloids and Surfaces 1986)--E. D. Goddard.
Containers, Preservatives and Contact Lens Solutions (Science & Technology)--N. E. Richardson et al., BPharm, PhD. Nov. 1979.
Interactions of Polymers and Cationic Surfactants With Thiocyanate as Counterions a (Journal of Colloid and Interface Science, vol. 30, No. 2, Jun. 1969)--Shuji Saito et al.
Adsorption of Benzalkonium Chloiride onto Different Filter Media During Bacteriological Filtration (Pharm. WeekBlad 1971)--N. T. Naidoo et al.

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