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Syringe with flow control valves and associated methods

  • US 8,992,482 B2
  • Filed: 03/12/2010
  • Issued: 03/31/2015
  • Est. Priority Date: 03/12/2010
  • Status: Active Grant
First Claim
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1. An aspiration syringe, comprising:

  • a barrel for receiving fluid;

    a plunger insertable into the barrel, the plunger configured to be drawn proximally through the barrel to draw fluid into the barrel;

    a first valve associated with a distal end of the barrel, the first valve comprising a one-way valve configured to permit the fluid to flow proximally into the barrel and to prevent the fluid from flowing distally out of or away from the aspiration syringe; and

    a second valve carried by the plunger, the second valve comprising a one-way valve configured to enable fluid to exit a confined interior of the barrel or a system of which the confined interior of the barrel is a part, through the plunger, directly to a proximal portion of the barrel open to an exterior of the aspiration syringe,wherein the second valve is configured to couple to a proximal communication element.

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