How does a glucometer work ?

[ranjini2311]

how does a glucometer work? what is the internal circuit of a glucometer ?

 

[pakitos]

glucometer circuit

check this easy answer by
Luc Ronchi, M.D., Anesthesiology, Anesthesiologie Hopital

"www.madsci.org/posts/archives/1998-11/910900850.Me.r.html"

The glucometer works on an indirect way to measure blood glucose level.

The whole device is composed of:
- a lancet (presently a more automatized device which produces a nearly
painless puncture) to get a droplet of blood
- a reactive strip with an enzyme (usually glucose oxydase) and a reactive
(phenol or ferrocyanure, depending on the method used)
- a device (the "big box") including a digital display to perform the
dosage and display the result under numeric form (millimoles per liter
usually, but units may vary)

After blood has been spread on the reactive strip,glucose is transformed by
the enzyme in D gluconolactone, wich in turn reacts with phenol or
ferrocyanure contained on the strip to produce a final substance. The more
glucose in the blood, the more final substance produced.

Dosage of this final substance can be achieved through colorimetry
(absorption of a monochromatic light by this final substance) or
impedancemetry.
Calibration of the machine allows to convert the dosage of this final
substance into a blood level of glucose

Added after 13 minutes:

check this also:

noninvasive bluetooth enabled glucometer

https://www.indiastudychannel.com/projects/1739-noninvasive-bluetooth-enabled-glucometer.aspx

 

[ranjini2311]

noninvasive glucometer

hey,, thanks.
my area is.. i need to know how the circuit in the big box is?? and hoe does it wokr???

 

[pranam77]

how glucometer works

hey,, thanks. my area is.. i need to know how the circuit in the big box is?? and hoe does it wokr???

I think "pakitos" has given the best reply to your question "about how it works"? Regarding the circuits, that can be designed in various ways to do the said job and the links given are well explaining what you said.

 

[DuftDerBlumen]

Re: noninvasive glucometer

hey,, thanks.
my area is.. i need to know how the circuit in the big box is?? and hoe does it wokr???

Hello,

I am also interested to know how does the circuit inside the big box looks like. Did you find any results?

Regards