Device and method for generating a channel in an eye tissue layer for treatment of ocular disorders

A device for generating a fluid channel in an eye tissue layer, comprising

• a) a body configured for grasping, the body having an actuator located on a proximal portion thereof,
• b) a piercing member including a proximal segment and a distal segment, the distal segment including a piercing tip at a distal end thereof, and
• c) a distal stabilizer element extending from a distal end of the body, the distal stabilizer element including a lumen,
• wherein the piercing member is configured to be displaced, by actuation of the actuator in a first direction, from (i) a stored position, wherein the proximal segment is retracted within the stabilizer lumen and the piercing tip extends outwardly from the distal stabilizer, to (ii) an extended tissue channel initiation position in which the distal segment of the piercing member pierces a first surface of the eye tissue layer in which a fluid channel is to be formed, wherein the distal segment and at least a portion of the proximal segment extend outwardly from the distal stabilizer, with the piercing member axially displaced distally from the body,
• wherein the distal segment further includes a medial projection at a proximal end thereof, which includes a puncturing edge oriented in a direction reverse to an insertion direction in the eye tissue layer and extending proximally from the piercing tip, the medial projection configured to contact and cut a second surface of the eye tissue layer when the piercing member is retracted toward the body, the second surface of the eye tissue layer being opposite from the first surface, by actuation of the actuator in a second direction opposite to the first direction, and complete formation of the fluid channel in the eye tissue layer.