Blood Glucose MetersBlood Glucose Meters

Mihir SubashMihir Subash

Glucose TestingGlucose Testing Glucose Testing is a Glucose Testing is a

important and vital part important and vital part of a diabetics daily health of a diabetics daily health care.care.

Without testing, a Without testing, a diabetic can become sick diabetic can become sick because their glucose because their glucose levels are not where they levels are not where they need to be.need to be.

Glucose testing is done Glucose testing is done by using a glucose by using a glucose testing meter, which uses testing meter, which uses a glucose testing strip.a glucose testing strip.

Glucose Testing MeterGlucose Testing Meter

Steps for Testing Steps for Testing GlucoseGlucose

To test for glucose one must drop a sample of blood by placing on To test for glucose one must drop a sample of blood by placing on the strip.the strip.

This is done by poking the skin with a needle called a lancet. This is done by poking the skin with a needle called a lancet. The lancet pricks the finger which allows the sample of blood to The lancet pricks the finger which allows the sample of blood to

flow right onto the glucose strip.flow right onto the glucose strip. Once the blood sample has made it on to the glucose strip, a Once the blood sample has made it on to the glucose strip, a

device called a glucose meter is used to measure the glucose in the device called a glucose meter is used to measure the glucose in the blood. In each test strip, there is a chemical called glucose oxidase.blood. In each test strip, there is a chemical called glucose oxidase.

This glucose oxidase reacts with the glucose in the blood sample This glucose oxidase reacts with the glucose in the blood sample and is created into a acid called gluconic acid.and is created into a acid called gluconic acid.

This current is then able to read and determine how much glucose This current is then able to read and determine how much glucose is in the sample of blood on the testing strip. The number is then is in the sample of blood on the testing strip. The number is then relayed on the screen of the glucose testing meter.relayed on the screen of the glucose testing meter.

Blood Glucose MetersBlood Glucose Meters

A glucose meter is used to determine A glucose meter is used to determine the approximate concentration of the approximate concentration of glucose in the blood.glucose in the blood.

The glucose meter is a key element The glucose meter is a key element in monitoring diabetes can help test if in monitoring diabetes can help test if the blood sugar is too high or low.the blood sugar is too high or low.

Glucose meters are small and are Glucose meters are small and are handheld, they can fit in the palm of handheld, they can fit in the palm of a hand.a hand.

Glucose meters cost anywhere from Glucose meters cost anywhere from $20 to the most advanced meters $20 to the most advanced meters costing $500.costing $500.

ExamplesExamples

One Touch Verio Glucose One Touch Verio Glucose Meter SystemMeter System

The One Touch Verio The One Touch Verio glucose meter is practical, glucose meter is practical, reliable, and affordable.reliable, and affordable.

This glucose meter This glucose meter provides instant provides instant notifications of high and notifications of high and low blood sugar trends, low blood sugar trends, unsurpassed accuracy, unsurpassed accuracy, and requires a very small and requires a very small blood sample size.blood sample size.

The Verio glucose meter The Verio glucose meter is one of the more recent is one of the more recent and efficient meters that and efficient meters that have came out in the past have came out in the past couple years.couple years.

Specialized Glucose Specialized Glucose MeterMeter

Invasive Glucometer Invasive Glucometer (Current)(Current)

• Present day – best way Present day – best way blood blood sugar sugar levellevel The reason is accuracy The reason is accuracy

• Problems:Problems:1.1. Can be painfulCan be painful2.2. MessyMessy3.3. CostlyCostly4.4. Average number of tests a Average number of tests a

day is 1.6, compared to the day is 1.6, compared to the recommend 4 times a dayrecommend 4 times a day

Non-Invasive Glucometer Non-Invasive Glucometer (Future)(Future)

• How it works:How it works:1.1. Finger or Earlobe goes into the Finger or Earlobe goes into the

slotslot2.2. Uses near-infrared light to Uses near-infrared light to

measure real-time blood measure real-time blood glucose levelsglucose levels

3.3. Takes 20 seconds or lessTakes 20 seconds or less

• What Separates This Device From What Separates This Device From Other Non-Invasive Devices?Other Non-Invasive Devices?1.1. ““Optical BridgeOptical Bridge””2.2. Measurements are taken Measurements are taken

directly from the blood not directly from the blood not from interstitial fluidfrom interstitial fluid

ConclusionConclusion Glucose meters are mostly accurate but biomedical engineers are Glucose meters are mostly accurate but biomedical engineers are

constantly finding new problems with them which they are using to constantly finding new problems with them which they are using to help to make the next glucose meter more innovative and useful.help to make the next glucose meter more innovative and useful.

The future for Glucose Meters is providing a device with precise The future for Glucose Meters is providing a device with precise accuracy, easy to use, affordable, and new software to detect any accuracy, easy to use, affordable, and new software to detect any problems a diabetic may be having.problems a diabetic may be having.

Grove’s Future DeviceGrove’s Future Device Passed International Standard for the last 2 yearsPassed International Standard for the last 2 years Expected to be released during 2013 summerExpected to be released during 2013 summer Faster, cleaner, and pain free compared to invasive devisesFaster, cleaner, and pain free compared to invasive devises Small and battery operated Small and battery operated

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Limitations of Near Infrared Spectroscopy. Limitations of Near Infrared Spectroscopy. Canadian Journal of Canadian Journal of Applied PhysiologyApplied Physiology 29(4): 463-487, 2004. 29(4): 463-487, 2004.

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