Patent ID: 8568360
Filing Date: 2013-10-29
Classification: A61M

Abstract:
1. A programmable pump for dispensing a fluid at varying flow rates to a patient comprising: a constant flow module including a first chamber housing the fluid, a first opening in fluid communication with the first chamber and a second opening in fluid communication with a catheter; and a hermetically sealed control module attached to the constant flow module and including a motor assembly and valve block, the valve block being in fluid communication with the first and second openings, the motor assembly having a stepper motor, a valve connected with the stepper motor, and a bellows surrounding a portion of the valve, wherein the valve is connected to the stepper motor by a valve stem, a distal end of the valve stem being tapered and a distal-most portion of the valve stem extending within a flow path of the fluid, and wherein the flow rate of the fluid dispelled from the first chamber is affected by varying positioning of the valve.