| abstract |
A blood collection device comprising, a syringe having a barrell defining a chamber, and a plunger having distal end received in the chamber. The device has a collection bag of flexible material secured in the distal portion of the syringe chamber, and having walls defining a collection chamber closed to the remainder of the syringe chamber, with the syringe having an opening communicating with the syringe chamber outside the collection bag. The device has a hollow needle for connection to a distal portion of the syringe in communication with the bag chamber, such that the bag expands responsive to blood pressure and passage of blood into the bag chamber. |