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US 12,310,729 B2Granted
Blood collection system with automatic pressure management and related methods
AssigneeBecton, Dickinson and Company
InventorsJonathan Karl Burkholz, Megan Scherich, Curtis H. Blanchard, Bin Wang
Life of this patent
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Abstract
A blood collection system may include a needle assembly, which may include a needle configured to receive an evacuated blood collection tube. The blood collection system may include a tubing, which may include a distal end and a proximal end. The proximal end may be coupled to the needle assembly. The tubing may include a first flow channel and a second flow channel. The first flow channel may be configured to collapse at a lower pressure differential than the second flow channel.
Claims7
A blood collection system, comprising:
- a needle assembly, comprising a needle configured to receive an evacuated blood collection tube;
- and
- a tubing, comprising a distal end and a proximal end, wherein the proximal end is coupled to the needle assembly, wherein the tubing comprises a first flow channel and a second flow channel, wherein the first flow channel is formed by a first wall and a shared wall, wherein the second flow channel is formed by a second wall and the shared wall, wherein the first flow channel is configured to collapse at a lower pressure differential than the second flow channel during blood collection, wherein the collapse of the first flow channel includes caving in of at least one of the first wall and the shared wall to at least partially block the first flow channel,
- wherein the first flow channel is in fluid communication with the second flow channel at the proximal end of the tubing, and wherein the first flow channel is in fluid communication with the second flow channel at the distal end of the tubing.
1 more element
Dependencies are inferred from the claim text.