US 11,679,199 B2
Systems and methods for delivering microdoses of medication
Antoine Barraud, Lonay (CH); Benjamin Pruijs, Bienne (CH); Nathanael Sigg, Oulens-sous-Echallens (CH); and Christophe Satorre, Lausanne (CH)
Assigned to AMF Medical SA, St-Sulpice (CH)
Filed by AMF Medical SA, St-Sulpice (CH)
Filed on Nov. 22, 2022, as Appl. No. 18/58,041.
Application 18/058,041 is a continuation of application No. 17/652,448, filed on Feb. 24, 2022, granted, now 11,529,460.
Claims priority of provisional application 63/195,564, filed on Jun. 1, 2021.
Prior Publication US 2023/0092485 A1, Mar. 23, 2023
Int. Cl. A61M 5/142 (2006.01); A61M 5/158 (2006.01); A61M 5/168 (2006.01); A61M 5/172 (2006.01); A61B 5/1486 (2006.01); A61M 5/14 (2006.01); A61M 5/50 (2006.01); A61M 5/145 (2006.01)
CPC A61M 5/14248 (2013.01) [A61B 5/14865 (2013.01); A61M 5/1413 (2013.01); A61M 5/158 (2013.01); A61M 5/168 (2013.01); A61M 5/1684 (2013.01); A61M 5/16827 (2013.01); A61M 5/172 (2013.01); A61M 5/1723 (2013.01); A61M 5/5086 (2013.01); A61M 2005/14252 (2013.01); A61M 2005/14256 (2013.01); A61M 2005/14533 (2013.01); A61M 2005/1586 (2013.01); A61M 2205/18 (2013.01); A61M 2205/3317 (2013.01); A61M 2205/3331 (2013.01); A61M 2205/582 (2013.01); A61M 2207/00 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A medication infusion device comprising a patch pump configured to be removably adhered to a wearer's skin for delivering doses of medication from a container through a transcutaneous portion, the patch pump comprising:
a first pumping system comprising a pusher configured to be coupled to a plunger of the container and a pump motor coupled to the pusher and configured to move the pusher towards the plunger of the container such that medication is moved out of the container; and
a second pumping system configured to receive the medication pumped out of the container by the first pumping system, the second pumping system disposed between the container and the wearer's skin and comprising a plurality of levers configured to contact a dosing tube to move a predetermined dose of the medication towards the transcutaneous portion,
wherein the plurality of levers are configured such that at least one lever is configured to be in a lowered position to close the flow between the container and the wearer's skin at all times.