Fluid collector assembly

Details Fluid collector assembly Fluid collector assembly

A - Human Necessities

61

M

A61M 5/32 (2006.01) A61M 25/06 (2006.01)

Patent

CA 2353372

The present invention relates to a fluid collection method and assembly in which the needle is retracted inside the syringe after the sample is taken. A standard sealed blood collection tube is inserted into the outer barrel of the syringe. A double ended needle held by the syringe has one end inserted into the patient and the other end through the seal of the blood collection tube. After the blood collection tube is removed, the user inserts a plunger into the cavity between an inner and outer barrel which initiates an automatic retraction of the needle into the assembly device. In operation, a collet is expanded and a spring biased needle retractor is engaged in response to the forward movement of the plunger. The forward end of the barrel carries a wedge which force the collet to expand upon forward movement of the collet.

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