INFUSION PRESSURE CONTROL USING BLOOD PRESSURE

摘要

Methods, systems, and software for controlling infusion pressure, such as during a medical procedure, using systemic blood pressure are described. Systemic blood pressure, such as brachial arm blood pressure or radial artery blood pressure, may be used to estimate central retinal artery blood pressure to estimate critical closing pressure. Further, the disclosure relates to controlling infusion pressure to prevent an increase in intraocular pressure above the estimated critical closing pressure when such is not desired, and, when such is desired, using systemic blood pressure and infusion pressure to control an intentional increase in intraocular pressure above the estimated critical closing pressure to stop intraocular bleeding.

主权项

1. A system for controlling infusion pressure during an intraocular surgical procedure, the system comprising:
a data receival unit adapted to receive:
systemic blood pressure; andinfusion pressure; a computational unit adapted to:
determine an estimated retinal artery blood pressure based on the received systemic blood pressure; anddetermine an estimated critical closing pressure based on the estimated retinal artery blood pressure; and a logic unit adapted to:
compare infusion pressure with the estimated critical closure pressure; andtrigger an alarm when the infusion pressure reaches a selected pressure relative to the estimated critical closing pressure.