Fluid drainage devices, systems, and methods

A glaucoma drainage device for draining a fluid from an interior region of a human eye to an exterior region of the human eye, the glaucoma drainage device comprising:

• a body having a continuous wall defining an internal reservoir within the body and a reservoir opening in the wall communicating with the internal reservoir;
• and
• a conduit extending from the body by a conduit length, the conduit having opposing first and second ends defining a passage through the conduit extending between the opposing first and second ends, the conduit first end engaging the reservoir opening to provide a fluidic connection between the conduit second end and the reservoir, the conduit length being sufficient to dispose the conduit first end at the exterior region of the human eye and to dispose the conduit second end at the interior region of the human eye,
• wherein at least a portion of the continuous wall has a wall portion composed of a microporous material, the wall portion having an internal side facing the reservoir and an opposing external side facing the exterior region of the human eye, the wall portion internal side low porosity surface extending an entirety of the wall portion internal side, the wall portion external side having alternating low porosity and high porosity surfaces, and
• wherein the wall portion has an initial hydrophobic state that transitions to a final hydrophilic state within 30 days when the fluid engages the wall portion.

A method of controlling a flow of a fluid from an eye to a tissue surrounding the eye, the method comprising:

• inflating a reservoir with the fluid disposed to engage a hydrophobic material defining the reservoir, the hydrophobic material providing a first flow resistance;
• transitioning the hydrophobic material into a hydrophilic material within 30 days after engaging the fluid, the transitioning defining a variable flow resistance of the material that decreases from the first flow resistance to a second flow resistance that is lower than the first flow resistance;
• and
• draining the reservoir by directing the fluid out through the hydrophilic material to the tissue surrounding the eye to relieve a fluidic pressure of the eye.

A method of managing a fluidic pressure of the eye, the method comprising:

• identifying an undesirable fluidic pressure of the eye relating to an ocular fluid disposed in the eye;
• inflating a reservoir proximate to the eye with a conduit fluidically engaging the ocular fluid to deliver the ocular fluid to the reservoir and engage a reservoir wall comprising a material that transitions from an initial hydrophobic state to a hydrophilic state within 30 days after the reservoir wall engages the ocular fluid, the transition from the hydrophobic state to the hydrophilic state defining a variable flow resistance of the material that decreases from an initial first flow resistance to a second flow resistance that is lower than the first flow resistance;
• and
• draining the reservoir by directing the ocular fluid through the material to the tissue surrounding the eye to improve the undesirable fluidic pressure of the eye.