Patent ID: 9095406
Filing Date: 2015-08-04
Classification: A61F

Abstract:
1. An apparatus for selectively opening and closing a body lumen within a patient's body comprising: an elongate member configured to at least partially surround the body lumen, the elongate member including a sidewall, the sidewall defining a lumen; a shape memory element disposed within the lumen defined by the sidewall, the shape memory element adapted to change configuration based on a change in temperature of the shape memory element, the change in configuration of the shape memory element causing the elongate member to move between a first configuration and a second configuration thereby opening and closing the body lumen; a temperature control device for changing the temperature of the shape memory element, the temperature control device having a heating coil disposed within the lumen of the elongate member, wherein the lumen of the elongate member is configured to receive fluid, and heat generated via the heating coil is configured to be transferred to the fluid inside the lumen and subsequently to the shape member element.