US Patent 7794437 Reservoirs with subretinal cannula for subretinal drug delivery

Featured are devices and methods for administering a therapeutic medium to the posterior segment of an eye including instilling or disposing the therapeutic medium sub-retinally. Such instillation is accomplished by providing a reservoir containing a therapeutic medium to which is fluidly coupled a cannula and inserting a portion of the cannula sub-retinally, whereby the therapeutic medium within the reservoir is coupled to and dispersed subretinally via the cannula.