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between the right and left instruments. In addition, the range of motion of instruments in
Group C is slightly larger than that in Group A.
4 DISCUSSION
Theoretically, the range of motion that a straight instrument can reach is a large, cone-shaped
space. However, from Figure 5, we found that the actual shape of the range of motion was
definitely not a cone or large, but limited to a small amorphous space. There are several fac-
tors to determine the space.
The first factor is the type of operation. Transferring and suturing were studied in this
paper. The range of motion of the instrument in suturing is larger than that in transferring.
In addition, ...