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Sharp Shape Foot
Scanner - Instructions
 Your
scanner Sharp Shape comes with a power supply cable, foot
pedal and a connector for the computer. The scanner can be
adjusted for alignment to patient's foot.
The program is located en
the main hard drive of your pc ( Drive C: )in a folder
called scanfeet, in there is a folder "RAWFILE" and a folder
"SCNFILE" where the files of the scanned foot are saved.
In the same folder is
located the icon newscan that starts the program, also you
can start the program from the program files in your pc and
from the shortcut in your desktop.
 When
the program starts you will see a screen and the available
options.
Raw File, SCN File-
Indicates the type of file being used.
MM, INCH - Indicates the measurements system used when
working in RAW mode.
File Name - Name of file in use
Write File - Save changes
Load File - Allow to review/change files
Scan - Begins the scan
using the foot scanner.
Settings - Select the port for communications with the
scanner and speed.
Help - Basic Instructions to operate the scanner.
Print Screen - will print on paper the image of the scan.
Quit - Exits the program.
By clicking on Scan a new
window will open up with instructions to begin and
finishing the scan
 The
scan should be made with the scanner in the upright position
as shown below. The height of the patient chair has to be
suitable. Press the foot pedal when ready. Although a dark
room is not required, the darker toe room, the better the
image. The doctor must wear black gloves.
When the scan is made,
the foot being scanned has to be placed above the label
“Put foot above this line”, where you should set the heel.
You will see a missing heel on the image if the foot is set
too low. You will see a missing forefoot on the image if the
foot is set too high.
 The
orientation of the foot being scanned should line up with
the centerline of the scanner.
To do that, you can
manipulate the foot or the scanner body.
Among the three images
shown, the middle on is the best image. The tilt of the
image on the left and on the right is too much, which
creates some difficulties for the cast correction.
To improve the image, you
can do the following:
Before scan, you want to
leave the foot out of socks for a while, so the foot can get
dry a little bit. That will help to reduce the smudges on
the scanner glass. Do not use any chemical, such as Thinner,
to clean the Plexiglas. Use dry/wet cloth with soap only.
Some have tried using a one-time use lady’s sock (nylon,
light color) for the scan. Although the arch may change a
bit, it is a good idea to improve the image.
Scanning is done and a
foot image is in 3D view and in a gray scale.
The screen after the scan
is like he one shown. Check the integrity of the image. Make
a re-scan if the image doesn’t look good. We have two data
formats. One is RAW and the other is SCN. The RAW file has
been used in the AOMS systems for producing molds and
orthotics for years. The SCN is a new file format, which
carries more info than the RAW does. So far we haven’t been
able to fully utilize the SCN file yet, except for plotting
the image. We may use them in the future. You can save the
SCN file to the hard disk by click on “WRITE FILE”. If you
want to have the molds or orhotics made from the AOMS, you
only need the RAW files.
 To
prepare a RAW image, crop the useful area of the foot and
eliminate the noise. To do that, use the mouse to click the
center (red dot), or the upper-left hand corner or the
lower-right hand corner of the rectangle. You can move the
rectangle by clicking and dragging the red dot. You can
change the rectangle size by clicking and dragging the two
corners. Note that the length of the rectangle is limited to
10 inched. You want to catch the heel and 10 inches above
the heel.
The orthotics are made
below the metatarsal heads. 10 inches should cover almost
all of the devices that you want to make. Because of the
10-inch limit, sometimes you have to shorten one side before
you stretch the other one. To drag a point is to click on
that point and hold the mouse button (don’t release it)
until you move the cursor to a desired location.
A more precise crop is
selecting Crop #1, when done click on Write File, this
will save it in SCN File and then is ready to select RAW
File
 After
you have worked with the SCN image, click the toggle switch
RAW File.This is the RAW image
For milling molds
or orthotics, you want to locate the seven landmark dots as
shown. These red dots will provide references for the cast
correction software for the width, length of device. Click
on the red dots and drag them to the suitable places. The
outer two dots on the forefoot define the width of the
forefoot and the inner two dots on the forefoot define the
locations of the 1st and 5th metatarsal heads.
Use common sense to
locate them. Also locate the three dots on the heel to
suitable locations. The measurements are shown on the
screen. After you are done, click on “WRITE FILE” to write
the RAW file.
The dotted lines on the foot gray scale and on the 3D image
block are simulated to represent a close idea of the
size for the orthotic Shell (Plates).
This is a standard size
for a metatarsal Shell.
The dotted lines on the foot gray scale and on the 3D image
block are simulated to represent a close idea of the
size for a sulcus orthotic Shell (Plates).
This is for a sulcus size some times used on devices such
EVA/Porozote and Cork&Leather.
 Also
you can see the heel and forefoot relation in a 3D
image , just click on View3D and a new window will open. All
the options are available when the letter H is pressed.
Also SCN files and RAW files can be load up for review
and/or changes, just click on Load. This files can be saved
in floppy disk, Send this files to our laboratory and the
orthosis will be done using the AOMS system.
Just click on Load, select the type of file and open the
file that you wish to work
 
TROUBLE SHOOTING
If you don’t see any image after you have made a scan,
please check the following:
- The computer COM port should be in working condition.
- The cable needs to be well seated on both ends.
- The port setting should match the port assignment on the computer. Most
computers have COM1 and COM2. If your COM2 has the 25-pin
port, you need to find an adapter (from 25-pin to 9-pin)
- The baud rate setting should match the setting on the scanner.
- Start a scan and watch the LED’s inside the scanner. The 2nd LED should
blink for at least 3 seconds, and the 3rd LED should blink
for at least 4 seconds (depending on the communication
speed) after the foot pedal is pressed. If it doesn’t blink,
something is wrong with the hardware inside. Contact us for
further actions.
If you see a bad image (snowy, distorted or noisy), after a
scan is made, please check the following:
-
You need to wait for the finish of a scan before you take
another scan (press the foot pedal). All the LED’s do not
blink when the scan is finished.
- The baud rate setting should match the setting on the scanner.
- Shield unwanted light, especially direct light rays, to reduce the
noise.
- The configuration file and the scanner should match. You can’t use the
same configuration files on separate scanners. To check for
a match, look for matching serial numbers on the screen of
the software and inside of the scanner.
NOTE: The laser diodes used in the scanner are class
II. They are the same as the ones used in stores. Do not
stare into them for longer time than they pass through your
eyes.
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