A breast implant (120) includes an implant shell (122) having an outer surface and defining a first fluid reservoir (124), and a porous membrane (128) overlying the outer surface of the implant shell (122) and defining a second fluid reservoir (130). The breast implant includes a filling tube (134) having a first conduit (142) in communication with the first reservoir and a second conduit (144) in communication with the second reservoir. The breast implant includes an injection dome (140) coupled with the filling tube and having a first fluid chamber in communication with the first conduit and a second fluid chamber in communication with the second conduit. The injection dome includes an upper end having an injection cover, a lower end including a support base, the first fluid chamber located adjacent the injection cover, the second fluid chamber located adjacent the support base, and a diaphragm dividing the first and second fluid chambers from one another.
