Patent ID: 7736391

Claim:
A prosthesis for implant in a human patient body, comprising: an external envelope made of at least one layer of a first elastomer; at least one indicator lumen enclosed by the external envelope; a carrier medium disposed within the indicator lumen; at least one biologically compatible microencapsulated rupture indicator contained in the carrier medium, the rupture indicator capable of leaking out of the indicator lumen upon rupture of the external envelope and triggering a signal detectable by the patient; at least one implant lumen enclosed by at least one implant lumen envelope made of at least one layer of a second elastomer, the implant lumen disposed within the indicator lumen; and an implant filling material contained within the implant lumen; and wherein the signal is a distinct color in urine of the patient detectable by sight; and wherein the microencapsulated rupture indicator is phenazopyridine.