Auto-Regulation System for Intraocular Pressure
AssigneeUniversity of South Florida
InventorChristopher Lawrence Passaglia
Life of this patent
Estimating the term…
Abstract
A device and system for controlling pressure via fluid exchange in the body is presented. The device and system may be used to control intraocular eye pressure. The system is comprised of four main components: a cannula, a sensor, a controller and a pump. The system works to engage in a fluid exchange which slowly increases/decreases intraocular pressure until a desired level is reached. Once the desired level is reached, the intraocular pressure is held steady and any external pressure perturbations are removed.
Claims20
A system for regulating pressure within a portion of a human or animal body, comprising:
- a bidirectional pump comprising:
- a motor, a fluid drive unit coupled to the motor, and a reservoir containing a fluid;
- a pressure sensor coupled to the reservoir;
- a cannula coupled to the reservoir such that movement of the fluid drive unit causes the fluid to flow through the cannula;
- and
- a controller operatively coupled to the pump and pressure sensor.
A system for regulating intraocular eye pressure, comprising:
- a bidirectional pump comprising:
- a motor, a piston coupled to the motor, a pressure sensor coupled to the piston, and a reservoir containing a fluid;
- a cannula having a first end coupled to the reservoir such that movement of the piston causes the fluid to flow through the cannula, and a second end configured for insertion into the eye such that fluid is either withdrawn or injected into the eye depending on the direction of the pump;
- and
- a controller operatively coupled to the pump and pressure sensor.
A method for regulating intraocular eye pressure, comprising:
- providing a bidirectional pump, a cannula, a pressure sensor, and a controller;
- inserting the cannula into an anterior chamber of the eye;
- measuring fluid pressure within the anterior chamber and sending a signal to the controller;
- receiving the signal at the controller and comparing the signal to a set point;
- and
- causing the pump to operate in a first direction when the signal is below the set point and causing the pump to operate in a second direction when the signal is above the set point.
Dependencies are inferred from the claim text.