Patent ID: 9687178
Date: 2017-06-27
CPC Classifications: A61B

Claim:
1. A micromachined fluid flow regulating device for a fluid comprising: a fluid flow channel, at least one flow orifice formed in the fluid flow channel, defining an inlet portion of the fluid flow channel upstream of the at least one flow orifice, an outlet portion of the fluid flow channel downstream of the at least one flow orifice, the fluid when located in the fluid flow channel having a flow direction from the inlet portion to the outlet portion of the fluid flow channel, a spring, at least one piston arranged upstream of the at least one flow orifice, movably suspended in the channel by the spring such that the at least one piston is movable by the fluid in the flow direction of the fluid, towards the at least one flow orifice, to regulate a fluid flow through the at least one flow orifice, wherein the at least one flow orifice comprises a plurality of flow orifices and the at least one piston comprises a plurality of pistons.