Class: BE210
Group: T9
Members:
Chung
Huang
Ng
Vargas
Date: April 2004
Abstract:
Pullout is a property that will affect the mechanical behavior of
a suture. It is especially relevant for a wound on a joint like the
elbow or the knee, where the wound is constantly stretched. The pullout
for a suture under a uniaxially applied tension can be investigated by
measuring the average gap width between the edges of the wound, since
the actual length of the suture would be difficult to measure.
The imaging system is suitable for measuring the gap width, since it
does not interfere with the set-up during the course of the experiment.
The pixel coordinates on the program will be used to locate the edges
of the cloths (skin surrogates). The system will be calibrated using a
ruler, so that the pixels measured between the edges can be read as a
length. Since we are measuring a relative change in displacement, the
actual positions of the skin surrogates on the images are not
important, and thus it is not crucial that they are kept consistent
across images. The BE210Camera VI program runs the CCD camera and
acquires the image data. Each image has a 640x480 pixel resolution.
Accuracy and precision of the images will be quantified.