Apparatus for collecting constant amounts of blood from individual donors
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United States of America Patent
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-
May 8, 1990
Grant Date -
N/A
app pub date -
Nov 18, 1987
filing date -
Nov 19, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for the collection of blood via a collapsible inflow pipe into an inflatable bag having an anticoagulant prefilled therein. The bag is placed on a weighing platform coupled to a load cell, which produces an electric voltage signal representative of the weight of the blood being collected in the bag. The load cell is mounted on a swing cradle capable of oscillation about a horizontal axis, so that the bag is shaken during blood collection for intimately intermingling the collected blood and the anticoagulant. When a predetermined amount of blood is collected, as ascertained from the voltage output of the load cell, a controller actuates a collection stop mechanism thereby causing the same to tightly grip and collapse the inflow pipe.
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