Cochlear implants are not matched only once.
Cochlear implants have a long lifespan and are usually matched once for long-term use. However, this does not mean that they can only be matched once and can be replaced at the hospital.
Cochlear implants can be divided into in vivo implants and in vitro speech processors. Due to the high price and long life span, in vivo implants do not need to be re-matched if they are not damaged.
However, the lifespan of the in-vitro processor is generally ten years. If the cochlear implant needs to be replaced or is lost or malfunctions, you can go to the hospital to buy an in-vitro processor and copy the previous data again, or you can choose to re-match it.
To prolong the life of the cochlear implant, it is recommended to stay away from magnetic fields, protect the head, and avoid strenuous activities.
Specific questions about cochlear implants are recommended to go to the ENT department of a regular hospital.