DEVICE AND METHOD FOR CONTROLLING IN-VIVO PRESSURE

摘要

A differential pressure regulating device is provided for controlling in-vivo pressure in a body, and in particularly in a heart. The device may include a shunt being positioned between two or more lumens in a body, to enable fluids to flow between the lumens, and an adjustable flow regulation mechanism being configured to selectively cover an opening of the shunt, to regulate the flow of fluid through the shunt in relation to a pressure difference between the body lumens. In some embodiments a control mechanism coupled to the adjustable flow regulation mechanism may be provided, to remotely activate the adjustable flow regulation mechanism.

主权项

1. An implantable device comprising:
a shunt body adapted for implantation in a septum between a left atrium and a right atrium; and an adjustable flow regulating mechanism coupled to the shunt body, the adjustable flow regulating mechanism configured to set a blood flow rate within the shunt body as function of a pressure differential between the left atrium and the right atrium, the adjustable flow regulating mechanism further configured to regulate pressure in the left atrium and to set a blood flow rate through the shunt body as function of a pressure differential between the left atrium and the right atrium such that an increase in the pressure differential within a first pressure differential range results in a higher blood flow rate increase through the shunt body as compared to an identical increase in the pressure differential within a second pressure differential range.