The documentary has been in the works since 2018
The patient requested the "invasive implant to try to maintain communication with his family, including his young son"
It is the second time the sticksman has been caught out in the last month
Fans can buy the new short film today
The band are currently on tour in North America
'Opiate²' features an extended drum section
The band are currently on the North American leg of their world tour
The band faced backlash this week when they put a signed deluxe box set on sale for $810 (£600)
They've also announced a 30th anniversary reissue of 'Opiate'
The band's classic EP was first released in 1992