Page 77 - Flexible Robotics in Medicine
P. 77
Cable-driven flexible endoscope utilizing diamond-shaped perforations: FlexDiamond 61
3.5.4 Metrics benchmarking
Table 3.9: Comparison of FlexDiamond with other prototypes based on the metrics translated
from identified user needs.
Metrics benchmarking
Optim LLC Pentax
Metric Need Importance ENT Olympus VNL-
no. no. Metric (1 5) Units FlexDiamond 3.6FP30 ENF-V3 1070STK
1 1 Articulation 1 Degrees 6 90 6 135 6 130 6 130
range
2 2, 3 Optical 1 Yes/No Yes No No No
zooming
capability
3 3 Stability 1 Yes/No Yes Yes Yes Yes
4 4, 7 Automatic 2 Manual/ Manual Semi Semi Semi
mechanism semi/full
5 5 Resistance 2 Yes/No Yes Yes Yes Yes
to
deformation
6 8 Distal tip 3 mm 7.0 3.6 2.6 3.1
diameter
7 4, 8 Speed of 3 Fast/ Slow Fast Fast Fast
insertion slow
8 6, 9 Cost of 4 Low ($350) High Very high Very high
prototype
9 4, 6 Working 5 mm 300 300 300 300
length
3.5.5 Satisfaction benchmarking
After a comparison of FlexDiamond with other devices based on the metrics translated from
identified user needs (Table 3.9), satisfaction benchmarking (Table 3.10) shows the level of
satisfaction consumers have toward each of the prototypes. More “crosses” indicate a higher
level of satisfaction, with the maximum number of “crosses” being 5.
3.5.6 Target specification
Target specification (Table 3.11) serves as a guideline for the developers to refer to while
reviewing and improving the prototype. The ideal value is the set of values that we aim to
