Patent ID: 9204812
Filing Date: 2015-12-08
Classification: A61B,A61M

Abstract:
1. An implantable valve, comprising: a housing having a reservoir adapted to receive fluid flow therethrough between an inlet port and an outlet port, the housing having a top, a bottom, and opposed sides, the inlet port and the outlet port defining a longitudinal axis of the housing along which the fluid flows, the reservoir being defined in part by a dome-shaped portion extending radially outward in a first direction from the longitudinal axis, the reservoir being positioned along the longitudinal axis of the housing, and the reservoir having an offset tag housing area that is offset and downstream from the dome-shaped portion and that extends radially outward in a second direction from the longitudinal axis, the first direction being transverse to the second direction; a valve assembly disposed within the first portion of the housing and adapted to control a rate of fluid flowing through the housing; and a radio frequency tag comprising a chipless circuit disposed within the offset tag housing area with no radio frequency tag disposed in or under the dome-shaped portion, the chipless circuit being adapted to change one or more electromagnetic characteristics in response to pressure applied thereto by fluid in the reservoir and to produce a response to a wireless signal characterized by the one or more electromagnetic characteristics that correlates to a pressure of fluid in the reservoir.