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Patent Searching and Data


Title:
DISPENSER FOR DISCHARGING PHARMACEUTICAL LIQUIDS
Document Type and Number:
WIPO Patent Application WO/2020/216673
Kind Code:
A3
Abstract:
The invention relates to improvements to a dispenser (10) for discharging pharmaceutical liquids, in particular in the form of individual drops. Such a dispenser (10) has a liquid store (14), a pump device (16) with a pump chamber (20) which has a variable volume, and a dispensing opening (28) for dispensing the liquid. The dispenser (10) additionally has a membrane part (60) which delimits the pump chamber (20) on one side and at least partly consists of a soft plastic and which changes the volume of the pump chamber (20) by moving and/or deforming. The dispenser (10) has a housing, within which the pump device is provided, and an actuation button (70) which can be moved relative to the housing between a non-actuated starting position and an actuated end position in order to move or deform the membrane part (60) and in order to decrease the size of the pump chamber (20) for the purpose of discharging the liquid. The invention proposes special designs in order to secure the membrane part (60) to the housing (30) and to the actuation button (70). The invention additionally relates to a design of the pump chamber (20) for achieving a high degree of compression and to the use of a toggle switch (70) as the actuation button (70).

Inventors:
KRAMPEN GERALD (DE)
GREINER-PERTH JÜRGEN (DE)
Application Number:
PCT/EP2020/060740
Publication Date:
December 10, 2020
Filing Date:
April 16, 2020
Export Citation:
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Assignee:
APTAR RADOLFZELL GMBH (DE)
International Classes:
B05B11/00
Domestic Patent References:
WO2004062422A12004-07-29
WO2013057223A12013-04-25
Foreign References:
EP0784513A11997-07-23
DE1907358A11969-09-11
FR1531558A1968-07-05
US2884164A1959-04-28
US5454488A1995-10-03
DE68903116T21993-02-25
DE1491706B11970-02-19
FR2877325A12006-05-05
DE4141825A11993-06-24
Attorney, Agent or Firm:
PATENTANWALTSKANZLEI CARTAGENA PARTNERSCHAFTSGESELLSCHAFT KLEMENT, EBERLE MBB (DE)
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