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AssigneeHabley Medical Technology Corporation
InventorsTerry M. Haber, Clark B. Foster, William H. Smedley, John A. Lewis, Jr.
Estimating the term…
A shielded safety syringe comprising a cylindrical, outer protective sleeve, an inner needle carrier movable axially through the sleeve, and a double-ended hypodermic needle supported by the needle carrier and aligned coaxially with respect to the outer sleeve and needle carrier. The needle communicates with an evacuated blood collection tube at the interior of the outer sleeve. A position control button is connected to the needle carrier and slidable through an axial guide channel formed in the outer sleeve for moving the needle carrier between proximal and distal positions within the sleeve. Accordingly, the needle is also moved through the outer sleeve to be relocated from an axially extended position, at which to make a veni puncture through a targeted tissue area, to a retracted position, at which the needle is completely surrounded and shielded by the outer sleeve to permit a safe handling and disposal of the syringe while avoiding an accidental needle strike. Locking detents are formed at opposite ends of the guide channel to receive the position control button, so that the needle maybe reliably retained in either the axially extended or retracted position.
A phlebotomy syringe including an outer sleeve having a partially open distal end and an open proximal end through which to receive a blood collection tube to be infused with a blood sample, said syringe further comprising:
A phlebotomy syringe comprising an outer protective sleeve having a partially open distal end and an open proximal end through which to receive a blood collection tube to be infused with a blood sample, needle carrying means located within and movable through said outer sleeve, a double ended hypodermic needle retained by said needle carrying means at the interior of said outer sleeve, one end of said needle communicating with the blood collection tube at the interior of said outer sleeve, and means for moving said needle carrying means through the interior of said outer sleeve so that the second end of said needle may be located at either an axially extended position projection through the partially open distal end of said outer sleeve or a retracted position completely surrounded and shielded by said outer sleeve.
Dependencies are inferred from the claim text.