System and method for controlling fluid flow rate and monitoring and recording fluid pressure during a medical infusion

摘要

A system for controlling an infusion of fluid into living tissue includes a catheter shaped to be introduced within living tissue and operable to deliver a fluid to a location within the living tissue, a fluid infusion pump mechanically coupled to the catheter and operable to pump fluid through the catheter and, thereby, into the location, the fluid infusion pump having at least two fluid pumping states, a fluid pressure monitor fluidically coupled to the catheter and operable to measure a pressure of the fluid within the catheter, and a processor communicatively coupled to the fluid infusion pump and the fluid pressure monitor, the processor operable to select between the at least two fluid pumping states based upon the measured pressure of the fluid within the catheter.

主权项

1. A system for controlling an infusion of fluid into brain tissue, the system comprising:
a tubular fluid passageway including a neural catheter portion shaped to be introduced within brain tissue and operable to deliver a fluid to a location within the living brain tissue; a fluid infusion pump mechanically and fluidically coupled to the fluid passageway and operable to pump fluid through the neural catheter portion into the location, the fluid infusion pump having at least two fluid pumping states; a fluid pressure sensor physically independent of the fluid infusion pump and mechanically and fluidically coupled to the fluid passageway and operable to measure a pressure of the fluid within the fluid passageway, the fluid pressure sensor operably configured to measure a pressure drop of approximately 100 millimeters of mercury (2 psi) or less across a portion of the fluid passageway; a processor communicatively coupled to the fluid infusion pump and the fluid pressure sensor, the processor operable to select between the at least two fluid pumping states based upon the measured pressure of the fluid within the fluid passageway; and a display coupled to the processor and operable to indicate a numerical value of the measured pressure of the fluid and to display a graphical representation of the pressure of the fluid as measured over a period of time.