The American profile with a slightly more abrupt
curvature and a flange starting at the lock of the blade
and continuing to approximately where the curvature
changes direction then disappearing.
Size
Use
Length
Code
0
Neonatal
80 mm
6805
1
Infant
87 mm
6806
2
Child
108 mm
6808
2.5
Large Child
118 mm
6809
3
Adult
128 mm
6810
3.5
Medium Adult
144 mm
6811
4
Large Adult
159 mm
6812
Macintosh Blades English Profile
The Macintosh laryngoscope blade is one of the most
popular blades in use today. The English profile has a
smooth, gentle curve that extends from the base to the
tip and a flange that starts at the lock and continues to
the tip, narrowing gradually.
Size
Use
Length
Code
1
Infant
92 mm
6706
2
Child
100 mm
6707
3
Adult
130 mm
6708
4
Large Adult
155 mm
6709
5
Extra Large Adult
178 mm
6710
Miller Blades
One of the most popular of the straight blades. The
tongue is straight with a slight upward curve near the
tip. In cross section, the flange web and tongue form a
C with the top flattened.