US 12,138,422 B2
Dosing pump
Ralf Scheibe, Ingelfingen (DE); Johannes Baumann, Ingelfingen (DE); Ralf Egner, Ingelfingen (DE); and Elke Eichhorn, Ingelfingen (DE)
Assigned to BÜRKERT WERKE GMBH & CO. KG, Ingelfingen (DE)
Filed by BÜRKERT WERKE GMBH & CO. KG, Ingelfingen (DE)
Filed on Sep. 27, 2021, as Appl. No. 17/448,914.
Claims priority of application No. 10 2020 125 757.0 (DE), filed on Oct. 1, 2020.
Prior Publication US 2022/0105266 A1, Apr. 7, 2022
Int. Cl. A61M 5/145 (2006.01); A61M 5/168 (2006.01)
CPC A61M 5/14593 (2013.01) [A61M 5/16881 (2013.01); A61M 2205/0272 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A dosing pump, comprising a pump chamber into which a fluid inlet opens at a first valve seat and from which a fluid outlet leads out at a second valve seat, a control element, and an actuator coupled to the control element to move the control element, the pump chamber being varied in terms of volume by moving the control element, and the second valve seat being alternatingly closed and opened to pump fluid from the pump chamber into the fluid outlet, and wherein the control element is movably mounted by at least a first flexure hinge, the first flexure hinge being positioned between a first plate-shaped part and an arm, the first flexure hinge being a thin portion having a reduced cross-section with respect to the first plate-shaped part for permitting pivoting of the arm with respect to the first plate-shaped part, the arm having an upwardly angled arm portion relative to the first flexure hinge, wherein the first plate-shaped part is integrally formed, via the first flexure hinge, with the upwardly angled arm portion.