Hilda Barbro Hjalmarsson (10 December 1919 in Närke - 13 February 2012 in Degerfors) was a Swedish nurse, care teacher and inventor.
Barbro Hjalmarsson | |
|---|---|
| Born | 10 December 1919 |
| Died | 13 February 2012 |
| Citizenship | Sweden |
| Occupation(s) | Nurse, Care Teacher and Inventor |
Biography edit
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 edit
- ^ "Blodvagga". digitaltmuseum.se. Retrieved 2020-02-24.
- ^ "Patent" (PDF). tc.prv.se. Retrieved 2020-02-24.
- ^ "Barbro Hjalmarsson - Sänkan och blodvaggan Triomix - PRV". 2018-08-29. Archived from the original on 2018-08-29. Retrieved 2020-02-24.