Shunt flushing systems and methods

A shunt system disposed beneath a patient's skin to shunt fluid from tissue site located upstream to a drain site located downstream, comprising:

• a flush assembly comprising a depressible dome comprised of a flexible material and a base to form a flush cavity, the depressible dome and the base creating a collapsible fluid pathway therebetween;
• the depressible dome and the base further comprising a proximal connector at a proximal end connected to a fluid collection tube, and a drain tube connected at a distal end, and wherein the fluid collection tube, the flush assembly, and the drain tube create a fluid path from the tissue site to the drain site;
• wherein the proximal connector is connected to a fluid collection tube implanted at the tissue site and is sealed with a compression fit and a chemical bond and reinforced with a tied filament, and the drain tube is implanted at the drain site;
• and
• wherein depressing the depressible dome with an external pressure first obstructs the collapsible fluid pathway and with continued pressure generates a back pressure forcing fluid within the flush cavity back to the tissue site through the fluid collection tube, clearing debris from the fluid collection tube.