US Patent 11871951 Surgical tool seal

A surgical tool having an inner drive hub coupled to an inner shaft, the inner drive hub having a boss; an outer hub coupled to a hollow outer shaft, the outer drive hub having at least one hole; and a seal having a body and at least one tab; wherein the inner drive hub and the inner shaft are configured for insertion inside the outer hub and the hollow outer shaft such that the boss is positioned distally to the at least one hole; and the seal body is positioned outside of the outer hub and the at least one tab extends through the at least one hole and proximally to the boss to removably couple the inner drive hub and the inner shaft to the outer hub and the hollow outer shaft.