I'm making a new iud

Hey friends, I'm a final year pharmacy student , for a competition about innovation I was trying to make a copper iud which does not require the need for removal , since the iud I'm making is degradable within the body itself,

The iud in question, will degrade alongside with the copper degradation and t will take a longer time than copper ..

Also the copper and t will be fully degraded into the body with no side effects within 5 years of insertion.

What do y'all think about this idea

Any points or problems you are facing that need addressing please input

I need your valuable feedback Thanks 🙏