DIFF Subgroup
A61M 16/0461 Full Title
Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators (iron lungs A61H31/02); Tracheal tubes > Tracheal tubes (catheters in general A61M25/00)
A61M 16/0461 Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators (iron lungs A61H31/02); Tracheal tubes > Tracheal tubes (catheters in general A61M25/00)