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Barbro Hjalmarsson

Barbro Hjalmarsson
Born(1919-12-10)10 December 1919
Närke, Sweden
Died13 February 2012(2012-02-13) (aged 92)
Degerfors, Sweden
CitizenshipSweden
Occupation(s)Nurse, Care Teacher and Inventor

Hilda Barbro Hjalmarsson (10 December 1919 – 13 February 2012) was a Swedish nurse, care teacher and inventor.

Biography

Barbro Hjalmarsson invented the battery-powered blood cradle "Triomix", which automatically shakes a test tube with blood so that the blood cells are separated from the blood plasma correctly. Her invention saved both the time it took to turn each tube 10-12 times as well as increased quality in the test by avoiding human error.[1] She was granted a patent in 1994 for this "Mixing apparatus comprising a mixing plate intended for receiving test tube tubes, which is imparted to a rocking movement of a certain frequency".[2]  Her invention reduced the manual work and made the sampling safer.[3]

References

  1. ^ "Blodvagga". digitaltmuseum.se. Retrieved 2020-02-24.
  2. ^ "Patent" (PDF). tc.prv.se. Retrieved 2020-02-24.
  3. ^ "Barbro Hjalmarsson - Sänkan och blodvaggan Triomix - PRV". 2018-08-29. Archived from the original on 2018-08-29. Retrieved 2020-02-24.

Further reading
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