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Repair information for blood pressure monitors (also known as sphygmomanometers).

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How to fix disconnected mercury in sphygmomanometer

My sphygmomanometer suddenly has its mercury disconnected,meaning that there are like air gaps in it, which results in wrong readings, I think there is a way to fix it, but do not know how??

it's really important to me, and I almost daily need to use it. and do not want to buy another on.

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Hi,

Try firmly holding the gauge section of the sphygmomanometer and gently tap it against the palm of the other hand and see if the column re unites.

Here is a link that describes three methods of re joining the mercury column in a thermometer. The principle should be the same for a sphygmomanometer.

http://novalynx.com/store/pc/Rejoining-a...

Here is a link on how to maintain a mercury sphygmomanometer, which may also be of interest to you. http://www.ebme.co.uk/articles/maintenan....

Hopefully this is of some help.

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Do make sure you don't spill or loose any mercury!

If you do, don't touch it and make sure you collect all of it in a sealed container to be properly disposed of (Both toxic & hazardous waste).

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My meter is quite old. Problem is its mercury is not going up. Returns from the half way

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@Khalid Taqdees ,

Did you read how to maintain a sphygmomanometer in the link above?

You may have to carefully remove the mercury and clean the tube and also check that the cuff and valve are OK.

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Solution of tapping worked like a charm.

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The mercury in my apparatus spilled out since i opened after a long time. Can this be fixed? All mercury is floating on the surface any way it could be inserted back in n used or this apparatus is gone waste

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