RL,
It clearly states in BS EN 60601-1:1990 section 2.1.5 that an applied part is defined as: -
2.1.5
*APPLIED PART
a part of the EQUIPMENT which in NORMAL USE:
— necessarily comes into physical contact with the PATIENT for the EQUIPMENT to perform its function;
or
— can be brought into contact with the PATIENT; or
— needs to be touched by the PATIENT.
Also section 2.1.24 states Type B is an applied part: -
2.1.24
*TYPE B APPLIED PART
APPLIED PARTS complying with the specified requirements of this Standard to provide protection against
electric shock, particularly regarding allowable LEAKAGE CURRENT and marked with symbol 1, Table D.II,
of Appendix D
NOTE TYPE APPLIED PARTS are not suitable for DIRECT CARDIAC APPLICATION.
Mark