CPC Class Codes
A61B 5/15003
for venous or arterial blood
A61B 5/150213
Venting means
A61B 5/150221
Valves
A61B 5/150251
Collection chamber divided ...
A61B 5/150259
Improved gripping, e.g. wit...
A61B 5/150351
Caps, stoppers or lids for ...
A61B 5/150389
Hollow piercing elements, e...
A61B 5/150496
Details of construction of ...
A61B 5/150755
Blood sample preparation fo...
A61B 5/150786
Optical identification syst...
A61B 5/154
Devices using pre-evacuated...
B01L 2300/0681
Filter
B01L 2300/087
Multiple sequential chambers
B01L 2400/049
vacuum
B01L 3/502
with fluid transport, e.g. ...
B01L 3/5082
Test tubes per se
Y10T 436/25375
Liberation or purification ...
Y10T 436/255
including use of a solid so...