US 12,303,664 B2
Fluid product injection device
David Fabien, Corseul (FR)
Assigned to APTAR FRANCE SAS, Le Neubourg (FR)
Appl. No. 17/259,774
Filed by APTAR FRANCE SAS, Le Neubourg (FR)
PCT Filed Jul. 11, 2019, PCT No. PCT/FR2019/051744
§ 371(c)(1), (2) Date Jan. 12, 2021,
PCT Pub. No. WO2020/012130, PCT Pub. Date Jan. 16, 2020.
Claims priority of application No. 1856480 (FR), filed on Jul. 13, 2018.
Prior Publication US 2021/0338925 A1, Nov. 4, 2021
Int. Cl. A61M 5/145 (2006.01); A61M 5/14 (2006.01); A61M 5/142 (2006.01); A61M 5/158 (2006.01); A61M 5/172 (2006.01)
CPC A61M 5/1456 (2013.01) [A61M 5/1407 (2013.01); A61M 5/14228 (2013.01); A61M 5/158 (2013.01); A61M 5/172 (2013.01); A61M 2205/50 (2013.01); A61M 2205/8206 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A fluid injection device comprising: a body for coming into contact with an injection site; at least one fluid reservoir; an injection needle for penetrating into said injection site so as to inject therein the contents of one or more reservoir(s); and a respective priming needle associated with each reservoir for penetrating into said reservoir before dispensing the fluid, each reservoir including a tube that is connected at one end to the respective priming needle, and at the other end to a manifold, which is connected to said injection needle by a portion of tube;
said device further comprises a peristaltic pump comprising a ring that is mounted to rotate on a crankshaft, said ring turning about an axis of rotation that is offset relative to the axis of rotation of said crankshaft, progressively compressing said portion of tube that extends around said crankshaft; and at least two reservoirs and reservoir selector means for selecting one or more reservoirs, the contents of which are to be dispensed during the next actuation, said selector means comprising a rotary member that is provided with cam means that are adapted to co-operate with the tubes of the reservoirs so as to open or close the flow of fluid through each tube;
wherein said rotary member is a selector cog provided with a cam; and
wherein said cam is formed by a projection that is circularly arcuate, said cam being interrupted by at least one gap, such that when said cam is in contact with a tube the cam pinches the tube so as to cut off the flow of fluid, and when a tube is situated facing said gap fluid may flow.