Patent ID: 9511187
Filing Date: 2016-12-06
CPC Classification: A61M,F04B

Claim Text:
1. A fluid delivery device comprising: a hydraulic pump chamber having a rigid sidewall containing and contacting hydraulic fluid configured to urge a piston in a fluid reservoir to deliver fluid within the fluid reservoir to a patient; a first actuator; a first hydraulic reservoir chamber having a first amount of the hydraulic fluid and coupled between the first actuator and the hydraulic pump chamber, the first actuator being configured to urge the hydraulic fluid in the first hydraulic reservoir chamber into the hydraulic pump chamber; a flow restrictor fluidly coupling the first hydraulic reservoir chamber and the hydraulic pump chamber; a second hydraulic reservoir chamber having a second amount of the hydraulic fluid and fluidly coupled with the hydraulic pump chamber; and a second actuator configured to urge the hydraulic fluid from the second hydraulic reservoir chamber into the hydraulic pump chamber, independent of the first actuator.