diabetes tends to lose sensation in there limbs due to the uncontrollable glucose level that damage the nerves. they are
endangered by wounds because They cant feel it and The healing process is slow.

Its a two stages of detection design,adjustable band with 3 notification LEDs to be warn in any limb and notify patient
of his health status and a camera box that detects the wounds location and depth

Reduce the percentage of disable people due to limbs amputation in the society.

An electrical circuit attached to an adjustable band with 3 LEDs + box that contains a microscope camera and lights

Diabetic Wound Detector (DWD)
Our invention is designed for diabetic patients since they tend to lose the sensation in
their limbs due to the uncontrolled glucose level that cause nerve damage, which is known as neuropathy. So the patient
is usually at high risk of developing wounds because of two reasons:
1. The patient have reduce ability to feel pain in
their legs or foot
2. The healing process is slowed by the disease
This is the main cause of amputation that happens
15 times more in diabetic patients than non-diabetics.
The design consist of two stages of detection:
1. Adjustable
band
It is responsible of giving 3 types of notifications, green light, yellow light, or red light, to the person
wearing it in his arm or leg
he LEDs with the wavelength of 850nm will transmit photons that will penetrate the skin to
reach the capillary, where it will interact will the oxy haemoglobin in the blood. Number of photons will be absorbed by
it and other will be reflected. So by calculating the ratio between photons going in to the capillary and photons being
reflected out of the capillary the blood velocity will be determined.
The diabetic capillary blood flow is slower than
the capillary blood flow in the non-diabetic but when he is wounded his blood flow will increase but still it is lower
than the case of the non-diabetic and by that we have divided our case of study into three category based on the ratio
in the three cases :
1. The velocity of the blood flow in the capillary for the non-diabetic which gives green light

2. The velocity of the blood flow in the capillary for the diabetic which gives a yellow light
3. The velocity of the
blood flow in the capillary for the wounded diabetic which gives a red light
In case of wearing the band in the arm and
the red light lights, the patient will check for the wounds by himself because it is easy to do. However, with the legs
we have a camera box that consist of a microscope camera that starts operating when the force sensor resister sense a
force on it by the foot. They are linked by an interface kit.
The microscope will send the snapshots of the foot to the
PC to be processed by a software we have designed using VB software that compare the shot of the foot with a shot of the
patients foot " the reference which has no wound "which is saved in a VB file .