Surgery – Diagnostic testing – Liquid collection
Patent
1997-12-09
2000-01-11
Hindenburg, Max
Surgery
Diagnostic testing
Liquid collection
A61B 500
Patent
active
060130377
ABSTRACT:
A medical syringe for collecting blood samples, including a cylindrical body having an open proximal end , a closed distal end, and a distal opening. A plunger assembly has a distal portion that is slidably disposed in the proximal end of the cylindrical body, thereby defining a fluid chamber between the distal portion and the distal end of the cylindrical body. The plunger assembly has a proximal portion with a cavity therein. A conduit extends from the fluid chamber proximally through the distal portion to the cavity. A penetrable seal, such as a multi-sample luer adapter, is fixed in the cavity, thereby sealing the conduit from retrograde flow of air. Fluid may be drawn into the fluid chamber, a vacuum specimen tube may be inserted into the cavity, and the penetrable seal penetrated to provide fluid-tight communication between the conduit and the specimen tube, fluid being preferentially drawn into the specimen tube from the fluid chamber. Alternatively, the syringe may include a cannula extending between the distal opening and the conduit, through which fluid may flow substantially separately from fluid in the fluid chamber.
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Hindenburg Max
Vascular Logics, Inc.
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